СПОСОБ КОНТРОЛЯ ЭФФЕКТИВНОСТИ РАБОТЫ ЭЛЕКТРОМЕХАНИЧЕСКОГО ПРИВОДА РОТОРНО-ЛИНЕЙНОГО ТИПА

Изобретение относится к способу контроля эффективности работы электромеханического привода роторно-линейного типа. Для реализации способа привод содержит корпус, электрический привод вращения с индуктивной обмоткой, гайку, шток, расположенный коаксиально с гайкой и связанный с ней винтовыми средствами зацепления, средства блокировки вращения штока относительно корпуса, а также средства крепления корпуса и свободного конца штока на неподвижном или перемещающемся основании. Гайка установлена в подшипниках с возможностью вращения относительно корпуса. Способ включает в себя несколько этапов. Измеряют силу электрического тока питания индуктивной обмотки привода, характеризующую крутящий момент, и действующее на шток привода осевое усилие. Вычисляют отношение действующего на шток осевого усилия к крутящему моменту, которое характеризует общую эффективность работы привода и его текущее состояние. Измеряют момент сил, характеризующий момент сопротивления вращения между средствами блокировки вращения ...

СИСТЕМА И СПОСОБ ЗАПИСИ РАБОЧИХ ЦИКЛОВ ДЛЯ ТРАНСПОРТНОГО СРЕДСТВА

Изобретение относится к транспортным средствам. Система записи рабочих циклов для транспортного средства с трансмиссией, имеющей множество компонентов трансмиссии и множество датчиков, содержит электронный блок управления, который принимает показания и осуществляет выборку показаний датчика крутящего момента и скорости коробки передачи, как пары. Для каждой пары отобранных показаний датчиков производят нахождение соответствующей ячейки в данных трехмерной гистограммы и увеличение счетчика ячейки соответствующей ячейки в данных трехмерной гистограммы. Также блок управления вычисляет оценки повреждения для компонентов трансмиссии на основе накопленных данных трехмерной гистограммы и оценки расчетного оставшегося срока службы компонентов трансмиссии на основе оценок повреждения. Система содержит линию связи с электронным блоком управления. Улучшается контроль компонентов трансмиссии. 2 н. и 11 з.п. ф-лы, 2 ил.

УСТРОЙСТВО И СПОСОБ ОПРЕДЕЛЕНИЯ СОСТОЯНИЯ ДЛЯ ОБНАРУЖЕНИЯ ИЗНОСА ДВИЖУЩЕГОСЯ КОМПОЗИТНОГО ПОЛИМЕРНО-ВОЛОКНИСТОГО РЕМНЯ (ВАРИАНТЫ)

... 1. Способ определения состояния движущегося композитного полимерно-волокнистого ремня в нормальных рабочих условиях, включающий в себя следующие операции: ! определение мгновенных динамических диэлектрических и электроемкостных свойств участка ремня, когда участок ремня проходит мимо емкостного устройства обнаружения и создает мгновенные динамические емкостные сигналы, !отделение мгновенных динамических емкостных сигналов, полученных по меньшей мере при помощи одного чувствительного элемента устройства обнаружения, от любых одновременно присутствующих статических емкостных сигналов, ! сравнение мгновенных динамических емкостных сигналов с пороговым уровнем динамического емкостного сигнала и, ! выработка выходного сигнала в ответ на циклическое превышение порогового уровня динамического емкостного сигнала мгновенными динамическими емкостными сигналами. ! 2. Способ по п.1, в котором мгновенные динамические емкостные сигналы, которые превышают пороговый уровень динамического емкостного сигнала ...

Hydraulische Spannvorrichtung

Eine hydraulische Spannvorrichtung, welche Folgendes umfasst: ein äußeres Gehäuse, das eine Kolbenöffnung sowie eine auf diese Kolbenöffnung zulaufend konzipierte und mit dieser verbundene Klinkenöffnung aufweist; einen beweglichen Kolben, der sich in vorstehend bezeichneter Kolbenöffnung befindet und an dessen Außenkreisfläche Zähne vorgesehen sind; eine sich in vorstehend bezeichneter Klinkenöffnung befindliche Klinke, die dem vorstehend bezeichneten Kolben zugewandte Fläche der Klinke ist mit Klinkenzähnen versehen, die mit vorstehend bezeichneten Zähnen ineinandergreifen. Die vorstehend bezeichnete Klinke weist außerdem auf: zwei aus der vorstehend bezeichneten Fläche in Richtung des Kolbens hervorragende Vorsprünge, diese beiden Vorsprünge verlaufen beidseitig der vorstehend bezeichneten, in Umfangrichtung an vorstehend bezeichnetem Kolben vorgesehenen Zähne und der Klinkenzähne. Damit wird folgendes Problem gelöst: Bisher vorhandene hydraulische Spannvorrichtungen müssen zusammen ...

Lineargetriebe mit Verschleißmessung

Die Erfindung betrifft ein Lineargetriebe mit Verschleißmessung, das umfasst: eine Spindel (1), die an der Außenseite eine schraubenlinienförmige Laufrille (11) aufweist; einen Schieber (2), der einen Hohlraum (21) aufweist, durch den die Spindel (1) hindurchgeht und dessen Innenwand entsprechend der Laufrille (11) eine Laufnut (211) besitzt, die mit der Laufrille (11) einen Laufkanal bildet; eine Vielzahl von Rollkörpern (5), die in dem Laufkanal angeordnet sind; eine Verschleißmesseinheit (4), die am Schieber (2) angeordnet ist und durch ein Magnetelement (42) und einen Isolierkörper (41) gebildet ist, wobei das Ende des Magnetelements (42) auf die Laufrille (11) der Spindel (1) ausgerichtet ist und als Anziehende definiert wird, wobei der Isolierkörper (41) zwischen dem Magnetelement (42) und dem Schieber (2) angeordnet ist; und ein Warnmodul, das durch zwei Anschlüsse (6) mit dem Schieber (2) und dem Magnetelement (42) elektrisch verbunden ist, wobei das Anziehende (421) des Magnetelements ...

Vorrichtung und Verfahren zur Überwachung eines Gleitlagers

Die Erfindung betrifft eine Vorrichtung zur Überwachung eines Gleitlagers (3) für ein Planetenrad (32) eines Getriebes (30) in einem Fangetriebe-Triebwerk (1), gekennzeichnet durch ein Detektionsmittel (4) für eine Relativbewegung zwischen einem Lagerbolzen (2) des Planetenrades (32) und einem Planetenträger (34) des Planetenrades (32), wobei durch das Detektionsmittel (4) bei Eintreten der Relativbewegung ein Steuersignal (S) zur Beeinflussung des Antriebes des Getriebes (30) abgebbar ist. Die Erfindung betrifft auch ein Verfahren zur Überwachung eines Gleitlagers.

System having a transmission

DIAGNOSTIC SYSTEMS AND METHODS OF A CONTINUOUSLY VARIABLE TRANSMISSION

A METHOD AND SYSTEM FOR ENABLING COMPONENT MONITORING REDUNDANCY IN A DIGITAL NETWORK OF INTELLIGENT SENSING DEVICES

Techniques for employing a smart sensor device that has a primary sensing function for sensing a state of a physical component and can concurrently enable one or more backup functions for sensing one or more states of one or more other physicals components in response to one or more other smart sensor devices not being able to perform their primary function of sensing and/or reporting on the one or more states of the one or more other physical components.

METHODS, MATERIALS AND APPARATUS FOR CLEANING AND INSPECTING GIRTH GEAR SETS

A one-step method of cleaning a girth gear set of a mill in preparation for inspection is provided, the method comprising: substantially emptying the mill; inching the gear; spraying a low, very low or non-Volatile Organic Compound (VOC) cleaning formulation at high pressure onto the gear, the cleaning formulation comprising a non-VOC aliphatic hydrocarbon solvent, an extreme pressure lubricant, a fretting wear lubricant, a non-ionic surfactant, and a mixture of non-VOC unsaturated fatty alcohols; and continuing to spray the low or very low VOC cleaning formulation on the gear for sufficient time for the formulation to clean the gear, thereby providing a so cleaned gear.

A roller screw drive with SAW (surface acoustic wave) - the sensor.

Die Erfindung betrifft einen Rollengewindetrieb (10), der eine Schraube (12) umfasst, eine Mutter (16), die um und koaxial mit der genannten Schraube (12) angeordnet ist, mehrere Rollen (20), die in einem radialen Zwischenraum (22) zwischen der Schraube (12) und der Mutter (16) angeordnet sind, jeweils an ihren Enden mit Aussenverzahnungen (26, 28) versehen sind und die axial beiderseits des Aussengewindes (24) angeordnet sind. Kronen (34, 36), die mit der Mutter (16) fest verbunden sind und Synchronisationsinnenverzahnungen (38, 40) aufweisen, stehen mit den Aussenverzahnungen (26, 28) der genannten Rollen (20) in Eingriff. Ein Schmiermittel ist im genannten radialen Zwischenraum (22) vorgesehen. Die Mutter (16) ist mit mindestens einer zylindrischen Innenfläche (54, 56) versehen, die axial zwischen einer Krone (34, 36) und dem Innengewinde (18) der Mutter (16) angeordnet ist, wobei der Rollengewindetrieb (10) ebenfalls mindestens einen AOW(Akustische Oberflächenwellen)-Sensor (60, 62) ...

Belt replacing time reporting device for belt type automatic speed changer

Method for identifying structural change of transmission belt

FAULT DETECTION OPERATION OF A BELT SYSTEM BETWEEN AN ENGINE AND AN ACCESSORY

Un procédé de détection de défaut de fonctionnement d'un système de courroie couplant un moteur à au moins un accessoire, ce procédé comprenant les étapes suivantes : (a) pour chaque valeur d'instant (n) d'une pluralité de valeurs d'instants successifs, recevoir (103) une valeur de vitesse du moteur (V(mes)mot(n)) et une valeur de vitesse de l'accessoire (V(mes)acc(n)), ces valeurs de vitesse étant issues de mesures et correspondant à cet instant, (b) effectuer une détection et une qualification de type de défaut (104, 105, 106, 107) en fonction des variations dans le temps des valeurs de vitesse du moteur reçues et des valeurs de vitesse de l'accessoire reçues, et (c) transmettre (108) un signal (diag_courroie) indiquant le type de défaut détecté, ledit signal étant élaboré en fonction du résultat de l'étape (b).

DEVICE OF DETECTION Of WEAR OF TRIMMINGS Of a PROCESS AND AUTOMOBILE CLUTCH DISK DEVEHICULE ASSOCIATES

Un dispositif de détection d'usure de garnitures 15, 21 d'un disque d'embrayage 16 de véhicule automobile comprend un capteur de la position de la butée et un moyen de calcul 22 capable de comparer la position détectée d'une butée de commande d'embrayage 11 au repos, avec une position de référence de la butée 11 pour en déduire l'épaisseur instantanée des garnitures 15, 21. Le disque d'embrayage coopére avec la butée 11 actionnée par des moyens de commande de serrage et de desserrage, la butée pouvant être déplacée entre une position de repos et une position active.

Apparatus and method for monitoring of belt slip in belt-torque assistance system

SYSTEM HAVING A TRANSMISSION

The invention relates to a system having a transmission, wherein the transmission comprises at least one housing cover, wherein a sensor unit is provided on the housing cover, on which sensors are provided, wherein the sensors are at least electrically connected to an analysis unit.

ROTATIONAL DRIVE DEVICE

... [Problem] To reduce the weight and size of the tooth skipping detection structure of a speed reducer in a rotational drive device. [Solution] A rotational drive device detects the occurrence of tooth skipping of the speed reducer on the basis of a difference in the outputs of encoders provided on rotation shafts on the input-side (motor-side) and output-side (load-side) with the speed reducer therebetween. The rotational drive device is provided with: a motor; a speed reducer disposed between the motor and a load for reducing the speed of rotation of the motor-side rotation shaft and transmitting the reduced speed rotation to the load-side rotation shaft; a first encoder for detecting the rotation of the motor-side rotation shaft of the speed reducer; a second encoder for detecting the rotation of the load-side rotation shaft of the speed reducer; a difference detection unit for determining the difference between a first detection value, which is obtained by dividing the output of the first ...

Electric motor and/or transmission

An electric motor and/or a transmission consisting of an input shaft, an output shaft, and a case provided with a centering flange and/or a fixing flange. At least one extension sensor is allocated to the case.

Structural unit

A structural unit for a linear actuator has at least one sensor unit. The sensor unit measures at least one deformation characteristic variable of the structural unit. There is also described a linear actuator with such a structural unit.

SYSTEM AND METHOD FOR DIAGNOSING DETERIORATION OF A DRIVE BELT IN A VEHICLE

A system for diagnosing deterioration of a drive belt in a vehicle may include an engine, a motor connected to a shaft of a crankshaft of the engine via the drive belt to generate electric power, a controller for identifying slip of the drive belt and subsequently determining that deterioration of the drive belt is diagnosed (the “deterioration diagnosis”) or slip of the drive belt is diagnosed as being due to friction of the engine (the “slip diagnosis”) depending on whether conditions for diagnosing deterioration are fulfilled and then generating a torque adjustment command to adjust torque of the motor depending on the deterioration diagnosis or the slip diagnosis, and a main battery for supplying electric power to the motor in response to the torque adjustment command. 1. A system for diagnosing deterioration of a drive belt in a vehicle comprising:an engine;a motor connected to a shaft of a crankshaft of the engine via the drive belt to generate electric power;a controller configured for identifying slip of the drive belt and subsequently determining that deterioration of the drive belt is diagnosed (the “deterioration diagnosis”) or the slip of the drive belt is diagnosed as being due to friction of the engine (the “slip diagnosis”) depending on whether conditions for diagnosing deterioration are fulfilled and then generating a torque adjustment command to adjust torque of the motor depending on the deterioration diagnosis or the slip diagnosis; anda main battery supplying electric power to the motor in a response to the torque adjustment command.2. The system according to claim 1 , wherein the controller includes:a torque determination module for determining the torque according to a number of revolution of the motor;a condition identification module for identifying whether the slip of the drive belt occurs by use of the torque and a predetermined target torque;a diagnosis module for determining as the deterioration diagnosis or the slip diagnosis depending ...

DETERIORATION DIAGNOSIS APPARATUS FOR MECHANICAL APPARATUS, DETERIORATION DIAGNOSIS METHOD FOR MECHANICAL APPARATUS PERFORMED IN DETERIORATION DIAGNOSIS APPARATUS, AND DETERIORATION DIAGNOSIS METHOD FOR MECHANICAL APPARATUS

A deterioration diagnosis apparatus is for a mechanical apparatus including a power transmission mechanism that transmits power via a gear. The deterioration diagnosis apparatus includes: a storing unit that stores, in advance, a trend of change along with the operation of the mechanical apparatus, in consumption rate of an additive contained in lubricant used for the gear; and a determination unit that determines the period to be taken for the consumption rate of the additive to reach a predetermined value, based on the trend of change in the consumption rate of the additive.

Engine pulley movement detection

Pulley-movement detection within an alternator or integrated starter/generator (ISG) for a vehicle is provided. The alternator or ISG includes a housing, a stator fixed within the housing, a rotor configured to rotate relative to the stator about an axis, and a shaft coupled to the rotor for rotation about the axis. The alternator or ISG also includes pulley coupled to the shaft at an interface, and configured to engage with a chain or belt to transfer movement between the shaft and the chain or belt. An electrical switch located at the interface is configured to be in a first state when the pulley is axially secured to the shaft, and a second state when the pulley is axially displaced away from the shaft. This can enable signals or warnings to be output in response to the electrical switch changing states, indicating an improper connection at the interface.

SYSTEM AND METHOD FOR MONITORING PRELOAD IN BALL SCREW

A system for the monitoring a preload in a ball screw includes a ball screw, a detecting device, a capturing device and a processing device. The ball screw has a preload. The detecting device detects an operating signal of the ball screw. The operating signal contains information about the ball screw's rotating speed and status. The status refers to a vibration or a sound generated by the operating ball screw. The capturing device is connected to the detecting device and acquires the operating signal. The processing device is connected to the capturing device, and has a threshold. The processing device processes and converts the operating signal into a ball-passing signal. When the ball-passing signal surpasses the threshold, the processing device determines that the ball screw's preload has vanished. Thereby, the system is enabled to determine the current state of the ball screw's preload reliably.

Method and system for enabling component monitoring redundancy in a digital network of intelligent sensing devices

Techniques for employing a smart sensor device (102) that has a primary sensing function for sensing a state of a physical component and can concurrently enable one or more backup functions for sensing one or more states of one or more other physicals components in response to one or more other smart sensor devices (102 and/or 116) not being able to perform their primary function of sensing and/or reporting on the one or more states of the one or more other physical components.

DRIVE CONTROL

The invention relates to a drive control for controlling a gear system (20) which is connected to a motor (10). Said drive control comprises one or several sensors (60) for detecting operationally specific parameters of said gear system (20), and a decentralized sensor evaluation unit (70). Said sensor or each sensor (60) is connected to the decentralized sensor evaluation unit (70) for separate evaluation of information provided by the sensor or sensors.

VEHICLE SENSOR SYSTEM

A vehicle sensor system includes a fluid sensor (118) configured to be disposed onboard a vehicle system (104) and at least partially extend into a gearbox (300) of a traction motor (110) of the vehicle system (104). The fluid sensor (118) is configured to output data representative of an amount of a lubricating fluid in the gearbox (300). The system also includes a positioning system (120) configured to output data representative of movement or an absence of movement of the vehicle system (104), and one or more processors (106) configured to determine the amount of the lubricating fluid in the gearbox (300) based on the data that is output by the fluid sensor (118) responsive to the data output by the positioning system (120) indicating that the vehicle system (104) has not moved or has moved by less than a designated distance for at least a designated, non-instantaneous period of time.

DETERIORATION DIAGNOSIS DEVICE FOR MACHINE DEVICE, DETERIORATION DIAGNOSIS METHOD FOR MACHINE DEVICE WHICH IS EXECUTED IN SAID DETERIORATION DIAGNOSIS DEVICE, AND DETERIORATION DIAGNOSIS METHOD FOR MACHINE DEVICE

STATE DETECTING DEVICE, STATE DETECTING METHOD, STATE DETECTING PROGRAM, AND INFORMATION RECORDING MEDIUM

PROBLEM TO BE SOLVED: To provide a state detecting device for predicting generation of failure in a direct-acting rolling guide unit, improving maintenance performance for a user to the direct-acting rolling guide unit, achieving long service life of it, and improving quality of devices manufactured using the straight rolling guide unit. SOLUTION: This state detecting device detects a current action state in the direct-acting rolling guide unit. It is provided with an AE sensor 1 to detect elastically generated wave motion at least caused by rolling of each of a plurality of balls contained in the direct-acting rolling guide unit and collision of the balls to each other, and generate an electric detection signal corresponding to the detected wave motion, a waveform regulating part 2, an A/D converter 3, and a signal processing part 4 to determine contents of the action state based on the generated detection signal Sse. COPYRIGHT: (C)2004,JPO&NCIPI ...

Verfahren zum Überprüfen des Getriebeloses und Produktionsmaschine oder Roboter

Zur Ermittlung des Getriebeloses in einer Anordnung, in der ein Motor (Antriebselement) (10) über ein Getriebe (13) eine Last (14) bewegt, wird ein in üblichen Produktionsmaschinen ohnehin vorhandener Geber (12) eingesetzt, der eine Winkelstellung oder translatorische Stellung des Antriebselements (10) oder eine Ableitung dieser Größe messen kann. Mithilfe des Gebers (12) wird der Einfluss des Getriebeloses auf die Ist-Stellung des Antriebselements (10) gemessen, die von der Soll-Stellung, die durch die auf den Antrieb (10) wirkenden Kräfte bzw. Drehmomente definiert ist, verschieden ist. Auf Grund einer Frequenzanalyse können Größen abgeleitet werden, die die Verwendung von Schwellwertkriterien erlauben. Beispielsweise wird der Antrieb (10) mit einem periodischen Signal angetrieben, das in der Nähe der so genannten Tilgerfrequenz liegt, d.h. einer Frequenz, bei der die Tilgung durch das Getriebe (13) am größten ist.

Verfahren und Vorrichtung zur Überwachung eines Riementriebes an einer Verbrennungskraftmaschine

Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zur Überwachung eines Riementriebes an einer Verbrennungskraftmaschine. Um ein preiswertes sowie zuverlässig arbeitendes Verfahren zur Überwachung eines Riementriebes an einer Verbrennungskraftmaschine und eine entsprechende Vorrichtung zu schaffen, wird vorgeschlagen, dass eine selektive Frequenzanalyse des Betriebsgeräusches oder Schalls bzw. Körperschalls nahe eines Zahnriemens (2) durchgeführt und im Vergleich zu einem normalen Spektrum ausgewertet wird.

Verfahren zur Verschleißüberwachung eines elektromechanischen Aktors für ein Luftfahrzeug

Die Erfindung betrifft ein Verfahren zur Verschleißüberwachung eines elektromechanischen Aktors für ein Luftfahrzeug, insbesondere für die primäre Flugsteuerung, wobei der elektromechanische Aktor ein Spindelantrieb ist, dadurch gekennzeichnet, dass mittels eines integralen Sensors des Aktors der Abstand zwischen Spindel und Mutter während des regulären Aktorbetriebes erfasst wird, um den Spindelantrieb auf möglichen Verschleiß zu überwachen.

Gear device e.g. for automatic transmission, has vibration detection unit which, from output signal has several oscillation parameters having vibration detection

The gear device has a vibration detection unit (10), which, from an output signal (11) has several oscillation parameters. The vibration detection unit (10) has several channels having a considered reference (21). A control unit (22) is provided which detects the vibration and state control parameters to reduce vibration.

Abriebsensor

Abriebsensor (1) zur Detektion von Abrieb in einem Getriebe (30), mit einem Gehäuse (20), einem in dem Gehäuse (20) aufgenommenem Permanentmagneten (10) und einer elektromagnetischen Spule (4), wobei die Spule (4) axial vor dem Permanentmagneten (10) angeordnet ist.

Hauptlagerung für eine Windenergieanlage, sowie Verfahren zur Sichtprüfung an Wälzlagern oder Zahnrädern in Hauptlagerungen von Windenergieanlagen

Die Erfindung betrifft eine Hauptlagerung oder ein Getriebe (1) für eine Windenergieanlage mit einem Lagergehäuse oder Getriebegehäuse (2) mit einer verschließbaren Durchführung (3) in einer Wand des Getriebegehäuses (2) für ein Führungsmittel zur Einführung einer Sonde in das Lagergehäuse oder Getriebegehäuse (2), wobei das Führungsmittel ein Kupplungsstück (4) aufweist, das fest mit dem Führungsmittel verbunden ist und das Kupplungsstück (4) lösbar in die Durchführung (3) eingesetzt und in dieser festgelegt ist, wobei das Kupplungsstück (4) derart komplementär zu der Durchführung (3) ausgebildet ist, dass es die Durchführung (3) in eingesetztem Zustand verschließt und dass eine Ausrichtung des Führungsmittels an einen Inspektionsort (7) innerhalb des Lagergehäuses oder Getriebegehäuses (2) vorgibt und wobei das Führungsmittel nur an dem Kupplungsstück (4) festgelegt ist.

Überwachungseinheit für eine Getriebeeinheit eines Schienenfahrzeugs

Die vorliegende Erfindung betrifft eine Überwachungseinheit (5) für eine Getriebeeinheit (1) eines Schienenfahrzeugs mit zumindest einem Sensor (6; 7; 8; 9; 10) zum Erfassen eines Parameters der Getriebeeinheit (1) und mit einer Rechnereinheit (11) zur Zustandsermittlung der Getriebeeinheit (1), wobei die Rechnereinheit (11) eine interne Schnittstelle (12) aufweist, über die diese mit dem Sensor (6; 7; 8; 9; 10) verbunden ist. Erfindungsgemäß weist die Rechnereinheit (11) eine externe Schnittstelle (17) auf, über die diese mit einer Zentralsteuerung (18) des Schienenfahrzeugs und/oder mit zumindest einer anderen Überwachungseinheit (21) einer zusätzlichen Getriebeeinheit (20) des Schienenfahrzeugs verbindbar ist. Des Weiteren ist die Rechnereinheit (11) derart ausgebildet, dass mittels ihr zumindest näherungsweise die verbleibende Lebensdauer zumindest eines Bauteils der Getriebeeinheit (1) und/oder der gesamten Getriebeeinheit (1) anhand der über die interne (12) und/oder externe Schnittstelle ...

Verfahren zum Erkennen einer Längung einer kraftübertragenden Kette zwischen einem Antrieb und einem Abtrieb eines Fahrzeugs

Die Erfindung betrifft ein Verfahren zum Erkennen einer Längung einer kraftübertragenden Kette (110) zwischen einem Antrieb (120, 125, 130) und einem Abtrieb (140, 145) eines Fahrzeugs, wobei eine durch einen Drehwinkel, den der Antrieb während einer nicht kraftübertragenden Bewegung der Kette bei einem Lastwechsel überstreicht, charakterisierte Drehwinkelgröße bestimmt wird, wobei die Drehwinkelgröße ausgewertet wird und daraus die Längung der Kette (110) erkannt wird.

A drive system for rotating a wheel of a landing gear

The present invention provides a drive system 20, for rotating a wheel 11, of an aircraft landing gear 10, comprising a drive element 24, a motor 21, operable to rotate the drive element, and a driven gear 25, adapted to be attached to the wheel. The the drive system has a drive configuration in which the drive element is capable of meshing with the driven gear to drive the driven gear, wherein the drive system further comprises a transmission error measurement apparatus 30, 40, the apparatus configured to obtain, over time, measurement data of one or more characteristics of the drive system when in the drive configuration. These measurements can be taken by torque, speed, or vibration sensors. The measurement data provides an indication of a transmission error between a torque commanded by the motor and a resulting torque at the driven gear. This indication can be used to decide on a maintenance or repair schedule for the drive system. The invention also provides an aircraft 100 and a ...

Method and apparatus for controlling a malfunction of an automatic transmission

A drive system for rotating a wheel of a landing gear

DRIVE UNIT

VEHICLE SENSOR SYSTEM

A vehicle sensor system includes a fluid sensor configured to be disposed onboard a vehicle system and at least partially extend into a gearbox of a traction motor of the vehicle system. The fluid sensor is configured to output data representative of an amount of a lubricating fluid in the gearbox. The system also includes a positioning system configured to output data representative of movement or an absence of movement of the vehicle system, and one or more processors configured to determine the amount of the lubricating fluid in the gearbox based on the data that is output by the fluid sensor responsive to the data output by the positioning system indicating that the vehicle system has not moved or has moved by less than a designated distance for at least a designated, non-instantaneous period of time. - AI lII I MAJ. . Inventor(s): Docket No.: 284903 E o C/) > - 0) o o c > CC) C/)) _n 0 o00 ...

METHOD FOR DETERMINING BELT LIFE

Helical gear speed reducer

APPARATUS FOR DETECTING WEAR OF BRAKE LININGS OF A CLUTCH DISC OF A MOTOR VEHICLE AND METHOD THEREFOR

ROLLER SCREW MECHANISM SYSTEM WITH SENSOR-TYPE SURFACE ACOUSTIC WAVE FILTER

METHOD OF PREVENTING A SLIP FROM THE CONNECTING A STARTING MOTOR

METHOD FOR DETERMINING WEAR OF THE BELT OF A BELT DRIVE

Procédé pour déterminer l'usure de la courroie d'un entraînement par courroie, notamment d'un démarreur-générateur (3) entraîné par courroie dans un moteur à combustion interne (1), ayant une poulie (4) et au moins un bras tendeur (8, 9) monté pivotant sur la poulie (4). Le bras est relié à un galet tendeur (6, 7), et une courroie passe autour de la poulie (4) et du galet-tendeur (6, 7). La courroie (5) est sollicitée par un couple défini. On détermine l'angle de rotation de la poulie (4) ou une grandeur en corrélation avec cet angle comme mesure de l'usure de la courroie.

PROCESS FOR MONITORING AT LEAST ONE FREEWHEEL OF A ROTARY WING AIRCRAFT, AND AIRCRAFT

PROCESS FOR MONITORING AT LEAST ONE FREEWHEEL OF A ROTARY WING AIRCRAFT, AND AIRCRAFT

La présente invention concerne un procédé de surveillance d'une première roue libre (15) interposée entre un premier arbre de travail (91) d'un premier moteur (5) et un rotor (2). L'état de fonctionnement de ladite première roue libre (15) est correct si la première vitesse de rotation d'entrée (N21) du premier arbre de travail (15) appartient à une deuxième plage de valeurs correspondant à la phase de fonctionnement courante lorsque la vitesse de rotation de sortie (NR) du rotor (2) appartient à une première plage de valeurs correspondant à la phase de fonctionnement courante.

Métodos, materiales y aparatos para la limpieza e inspección de conjuntos de engranajes circunferenciales.

Se proporciona un método de una etapa para limpiar un juego de engranajes circunferenciales de un molino en preparación para la inspección, el método comprende: vaciar sustancialmente el molino; avanzando lentamente el engranaje; pulverizar una formulación de limpieza de Compuesto Orgánico (VOC) bajo, muy bajo o no volátil a alta presión sobre el engranaje, la formulación de limpieza comprende un solvente de hidrocarburo alifático sin VOC, un lubricante de extrema presión, un lubricante de desgaste por fricción, un no iónico tensioactivo y una mezcla de alcoholes grasos insaturados sin VOC; y continuar rociando la formulación de limpieza con VOC bajo o muy bajo en el engranaje durante el tiempo suficiente para que la formulación limpie el engranaje, proporcionando así un engranaje tan limpio.

Planetary transmission

A planetary transmission includes a planetary stage and a FOFW system having an interrogation unit, a locally fixed antenna electrically connected to the interrogation unit and arranged within a housing of the planetary stage, and a plurality of FOFW sensors fastened to planet gear pins of the planetary stage such that at least two of the FOFW sensors are fastened to each of the planet gear pins. A plurality of co-rotating antennae are fastened to the planet gear carrier at a number corresponding to a number of the planet gear pins. The co-rotating antennae are each electrically connected to at least one of the FOFW sensors and arranged and configured such as to transfer measurement data detected by the FOFW sensors to the locally fixed antenna.

POWERTRAIN WITH A CHAIN BREAKAGE DETECTION SYSTEM

A pneumatic compactor includes a power source configured to generate power, a pneumatic tire configured to rotate, a chain drive assembly that couples the power source to the pneumatic tire, a proximity sensor, an indicator, a braker controller, and a controller. The chain drive assembly has a chain case and a chain housed in the chain case. The proximity sensor is coupled to the chain case and configured to detect a breakage of the chain and generate a signal signifying the breakage of the chain. The indicator is configured to indicate the breakage of the chain. The brake controller is configured to stop rotation of the pneumatic tire. The controller is configured to receive the indication from the proximity sensor signifying the breakage of the chain, command the indicator to indicate the breakage of the chain, and command the brake controller to stop rotation of the pneumatic tire. 1a power source configured to generate power;a pneumatic tire configured to rotate; a chain case having a first end and a second end;', 'a chain housed in the chain case;, 'a chain drive assembly that couples the power source to the pneumatic tire; wherein the chain drive assembly comprises detect a breakage of the chain; and', 'generate a signal signifying the breakage of the chain;, 'a proximity sensor located coupled to the chain case, wherein the proximity sensor is configured toan indicator configured to indicate the breakage of the chain;a brake controller configured to stop rotation of the pneumatic tire; and receive the indication from the proximity sensor indicating the breakage of the chain;', 'command the indicator to indicate the breakage of the chain; and', 'command the brake controller to stop rotation of the pneumatic tire., 'a controller configured to. A pneumatic compactor comprising: The present disclosure relates to pneumatic compactor, more particularly to a powertrain with a chain breakage detection system for the pneumatic compactor.Compactors are extensively used ...

Sprocket wheel for a bicycle drive

An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages.

VIBRATION GENERATING DEVICE

The present invention relates to a vibration generator, an more particularly to a technology in which an actuating shaft protrudes from the opposite ends of a housing such that vibrations generated from the actuating shaft are alternately output in opposite directions of the housing so as to improve vibration efficiency and such that a single vibration generator simultaneously applies the vibrations to a plurality of external objects so as to additionally enhance an economic effect. Furthermore, the present invention relates to a technology in which an actuating shaft protrudes from the opposite ends of a housing, thereby enabling stable installation. In addition, the present invention relates to a technology in which a fluid supply tube is configured to be movable in the axial direction of an actuating shaft so as to prevent breakage of the connected portion of the fluid supply tube, which might otherwise occur during the operation of the vibration generator.

SENSORISED MULTIPLIER

Summary. Sensorized gearbox with a plurality of sensors (8) and (14) assembled in a set of fixed parts (5) and (12) to the gearbox (1), measuring loads in the rotating shaft (11) and axial and radial forces derived from wind turbine operation. Sensors (8) and (14) assembled on the selected parts (5) and (12) detect in a specific time interval or during the life of the gearbox, measuring instantaneously and sending data to a control system that regulates the machine's power by controlling the r.p.m., wind turbine pitch or emergency stop.

ПОЛИКЛИНОВОЙ РЕМЕНЬ И СПОСОБ ИНДИКАЦИИ СОСТОЯНИЯ ИЗНОСА НА ПОЛИКЛИНОВОМ РЕМНЕ

Изобретение относится к поликлиновому ремню и индикации состояния износа поликлинового ремня. Поликлиновой ремень выполнен из спинки (1) ремня, расположенного под спинкой (1) ремня кордшнура (2) и несущего основания (4). На несущем основании (4) в продольном направлении образованы проходящие параллельно друг другу и имеющие соответствующее промежуточное пространство (8) друг от друга клиновидные ребра (7). При этом предназначенные для вхождения ребер (11) поликлинового шкива (10) промежуточные пространства (8) между двумя клиновидными ребрами (7) поликлинового ремня проходят до основания клиновидных ребер (7). В качестве критерия износа поликлинового ремня обнаруживается удаление материала в основании (9) ребер (7), когда вершины ребер шкива упираются в основание канавки промежуточного пространства. Достигается удобство в пользовании. 2 н. и 7 з.п. ф-лы, 2 ил.

СИСТЕМА ЗАПИСИ РАБОЧИХ ЦИКЛОВ И СПОСОБ ОЦЕНКИ ПОВРЕЖДЕНИЯ И ОСТАВШЕГОСЯ СРОКА СЛУЖБЫ КОМПОНЕНТОВ ТРАНСМИССИИ

Verfahren zum Bestimmen eines Zeitpunktes für einen Wechsel eines Betriebs-mediums eines Fahrzeuggetriebes

Die vorliegende Erfindung bezieht sich auf ein Verfahren zum Bestimmen eines Zeitpunktes für einen Wechsel eines Betriebsmediums eines Fahrzeuggetriebes, umfassend ein Ermitteln eines von einer Temperatur des Betriebsmediums abhängigen Schädigungswertes des Betriebsmediums, ein Ermitteln eines von der Laufleistung des Fahrzeuggetriebes oder des Fahrzeugs, in welchem das Fahrzeuggetriebe verbaut ist, abhängigen Schädigungswertes des Betriebsmediums, ein Vergleichen der beiden voneinander unabhängig ermittelten Schädigungswerte miteinander und ein Bestimmen des Zeitpunktes für den Wechsel des Betriebsmediums anhand des grö-ßeren der beiden ermittelten Schädigungswerte des Betriebsmediums.

Verfahren und Vorrichtung zum Bestimmen eines Belastungszustandes eines Kugelgewindetriebs in einem Lenksystem

Die Erfindung betrifft ein Verfahren zum Ermitteln einer Belastungsangabe eines Kugelgewindetriebs (62), insbesondere in einem Lenksystem (1) eines Kraftfahrzeugs mit Lenkunterstützung, mit folgenden Schritten: – Bestimmen einer Angabe über eine Kugelgewindetrieblast (P) auf den Kugelgewindetrieb (62); – Bestimmen einer Angabe über eine Bewegungsgeschwindigkeit (v) des Kugelgewindetriebs (62); und – Berechnen einer Belastungsangabe (BA) für den Kugelgewindetrieb (62) basierend auf der Angabe der Kugelgewindetrieblast (P) und der Angabe der Bewegungsgeschwindigkeit (v) des Kugelgewindetriebs (62).

Gearbox, has sensor device for detecting circulation rate of rolling bodies per unit time at constant moving velocity of gearbox, where circulation rate per unit time is defined as circulation speed

The gearbox has a spindle (1) including a raceway groove (11), and a movable body (2) arranged around the spindle. A running groove (21) of the body forms a channel passing through the raceway groove. A reconducting element (3) is arranged at the movable body. A sensor device (5) comprises a hall element and a magnetic member (51) e.g. permanent magnet, and is arranged at the movable body. The sensor device detects a circulation rate of rolling bodies (4) per unit time at constant moving velocity of the gearbox, where the circulation rate per unit time is defined as circulation speed.

Getriebe

Bei einem Getriebe mit einer Antriebs- und einer Abtriebswelle (3, 4) und einem Gehäuse (1), an welchem ein Zentrierflansch (5) und/oder ein Befestigungsflansch (6) vorgesehen ist, soll dem Gehäuse (1) zumindest ein Dehnungssensor (9) zugeordnet sein.

Aktuator mit integriertem Zustandsüberwachungssystem sowie Verfahren zur Zustandsüberwachung sowie Verfahren zur Herstellung eines Aktuators

Die vorliegende Erfindung bezieht sich im Bereich der Luftfahrt und Fahrzeugtechnik, insbesondere im Bereich der Steuerungstechnik, auf einen Aktuator mit integriertem Zustandsüberwachungssystem zur Erkennung und Überwachung von mechanischen Unregelmäßigkeiten einzelner Bauteile des Aktuators und/oder zur Messung einer Lastverteilung an diesem. Des weiteren betrifft die vorliegende Erfindung ein Verfahren zur Zustandsüberwachung des Aktuators sowie ein Verfahren zu dessen Herstellung. Verwendung finden die erfindungsgemäßen Aktuatoren in Stellsystemen im Bereich der Flugsteuerungs- und Fahrzeugsteuerungstechnik sowie im Bereich der Energiegewinnung.

Drive system for landing gear and drive system control method

PROCEDURE FOR THE EARLY RECOGNITION TRANSMISSIONS AUTOMATED BY INCIDENTS WITH THE ENTERPRISE OF AUTOMATIC OR

PROCEDURE AND DEVICE FOR THE EARLY RECOGNITION OF INCIDENTS WITH THE ENTERPRISE OF AUTOMATIC TRANSMISSIONS

CONTROL MEMBER SYSTEM

CONDITION COLLECTION DEVICE, - PROCEDURES AND - PROGRAM AS WELL AS DATA HANDLING

Gearbox component and lubricant condition monitoring system

A monitoring system (30) for a gearbox (22, 24, 26) having at least one rotational component having a design lifetime and at least one design parameter is disclosed. The monitoring system may include a first sensor (32, 34) configured to generate a first signal indicative of a speed associated with the at least one rotational component, a second sensor (36) configured to generate a second signal indicative of a torque associated with the rotational component, and a controller (46) electronically connected to the first and second sensors. The controller may be configured to determine a remaining lifetime of the at least one rotational component based on the design lifetime, the at least one design parameter, and the first and second signals over a period of operating time, and generate a maintenance signal based on the remaining lifetime.

DIAGNOSTIC SYSTEMS AND METHODS OF A CONTINUOUSLY VARIABLE TRANSMISSION

A diagnostic system of a vehicle for diagnosing a drive belt of a continuously variable transmission. A diagnostic circuit detects or predicts a fault of the drive belt based on an operating parameter received from a sensor associated with the vehicle during a predetermined diagnostic period.

ACTUATOR DIAGNOSTICS AND PROGNOSTICS

A system (10, 14) includes one or more sensors configured for acquiring data related to operational conditions of a motor actuator (12), a processor (62) configured for analyzing the data to determine a status of the motor actuator (12), and memory (64) for storing data representative of the operational conditions. A status indicator is generated based on the analysis of the operational conditions, for example to represent system capabilities, normal operating modes, and failure modes of the motor actuator (12). The system (10, 14) can be configured to communicate the status indicator to a user interface (21, 66) or higher- level controller (20, 22).

HYDRAULIC FRACTURING SYSTEM AND METHOD FOR OPTIMIZING OPERATION THEREOF

A hydraulic fracturing system includes an engine, transmission, and hydraulic fracturing pump. A driveshaft is coupled between the transmission and the hydraulic fracturing pump to transfer torque from the engine to the hydraulic fracturing pump. The hydraulic fracturing system also includes an advisory system including a display, a memory storing fuel consumption data and component durability data, and a controller. The controller is programmed to receive pump flow and pressure settings, identify an optimal transmission gear based on the pump flow and pressure settings, the fuel consumption data and the component durability data, and cause the optimal transmission gear to be displayed on the display.

A METHOD FOR EARLY ERROR DETECTION IN A DRIVE SYSTEM, A SYSTEM FOR EARLY ERROR DETECTION, WIND GENERATOR COMPRISING THE SYSTEM AND USE OF THE SYSTEM

A system for early error detection in a drive system of a wind generator is provided. The system comprises a first rotation sensor, which is coupled to an input shaft of the drive gear or transmission stage. This first sensor captures an input angle of rotation. Furthermore, the system comprises a second rotation sensor, which is coupled to an output shaft of the drive gear or transmission stage. The output angle, which is acquired by the second sensor, represents an output of the drive gear or transmission stage, which is performed in response to the input angle. The system also includes a control unit, which is configured to simultaneously capture a first and a second time dependent signal, which are indicative of the input angle and the output angle, respectively. The control unit is configured to determine a time dependent angle difference from the first and the second signal under consideration of the transmission ratio of the drive gear or transmission stage. Furthermore, the control ...

Structural health monitoring of escalator drive system

METHOD AND APPARATUS FOR MONITORING A BELT DRIVE ON AN INTERNAL COMBUSTION ENGINE

The present invention relates to a method and an apparatus for monitoring a belt drive on an internal combustion engine. In order to provide an inexpensive and reliably operating method for monitoring a belt drive on an internal combustion engine and a corresponding apparatus, it is proposed that a selective frequency analysis of the operating noise or sound or solid-borne sound is carried out close to a toothed belt and is evaluated in comparison with a normal spectrum.

ELECTRIC MOTOR AND/ OR TRANSMISSION

The invention relates to an electric motor and /or a transmission consisting of an input shaft (3), an output shaft (4), and a case (1) provided wit a centring flange (5) and/or a fixing flange (6). According to said invention, at least one extension sensor (9) is allocated to the case (1).

MEASURING SYSTEM AND MEASURING METHOD FOR DETECTING VARIABLES ON PLANETARY CARRIERS OF A PLANETARY GEARING

The invention relates to a measuring system for detecting variables on planetary carriers of a planetary gearing (1) comprising at least multiple planetary gear stages (11, 12), wherein at least each planetary gear stage (11, 12) comprises a respective sun shaft (6, 162), at least one respective ring gear (15, 19) and at least one respective planetary gear (10, 25) which is connected to the respective sun shaft (6, 162) and the respective ring gear (15, 19) by a toothed engagement, and a respective planetary carrier (5, 8) which is assigned to the at least one planetary gear (10, 25) and is rotationally connected to the at least one planetary gear (10, 25), wherein at least one first sensor, having at least one connection for supplying the at least first sensor with electrical energy, is arranged on at least one of the planetary carriers (5, 8) on at least one of the planetary gear stages (11, 12) for detecting variables of the assigned planetary gears (10, 25), and wherein the planetary ...

Method for Monitoring the Status of an Electronic Power Steering Device of at Least One Component of the Electronic Power Steering Device of a Motor Vehicle

A method for monitoring the condition of an electronic power steering apparatus or of at least one part of the electronic power steering apparatus of a motor vehicle includes continually capturing acceleration measured values in a region of the electronic power steering apparatus during a driving mode of the motor vehicle and continually providing the captured acceleration measured values to a damage computation section in the form of a damage meter that continuously sums the acceleration measured values and continually forms therefrom at least one variable characterizing a degree of damage to the electronic power steering apparatus or to the at least one part of the electronic power steering apparatus. The method further includes continually comparing the variable with at least one prescribed limit value.

Abnormality detecting apparatus for automatic speed changer

In a conventional abnormality detecting apparatus, it is impossible to judge a breakdown before the breakdown actually takes place. An abnormality detecting apparatus for an automatic speed changer includes a speed change controlling unit for controlling the automatic speed changer; a learn controlling device for optimizing an rpm change at the time of speed change control by the speed change controlling device; and an abnormality detection controlling device for judging whether a learned value of the learn controlling device falls within a range between an upper limit and a lower limit and if the learned value falls out of the range, storing the condition as abnormal. Thus, it is possible to detect the abnormal condition of constituents such as a clutch in the automatic speed changer before the actual breakdown.

DRIVE SYSTEM FOR LANDING GEAR AND DRIVE SYSTEM CONTROL METHOD

A method for controlling a separation between rotational axes of a pair of meshing gears is disclosed. A parameter indicative of a transmission error through the gears is measured and the separation is controlled, aiming to minimise variations in the measured signal. This acts to reduce variations in transmission error and the related vibrations created in the drive system and in the surrounding components. A related drive system and aircraft landing gear are described. 1. A drive system for an aircraft landing gear comprising:first and second gears for engagement to transfer a drive input to the system between the first and second gears;an actuator for adjusting a distance between rotational axes of the first and second gears;a sensor for detecting at least one parameter indicative of a transmission error through the first and second gears; anda controller for controlling the actuator to adjust a distance between respective rotational axes of the gears, in response to the detected parameter, when the first and second gears are engaged to minimise the transmission error.2. A drive system according to claim 1 , wherein the detected parameter comprises a distance measured between respective rotational axes of the first and second gears.3. A drive system according to claim 1 , wherein the detected parameter comprises a torque measured at one or more points in a drive path from a motor to a wheel of an aircraft landing gear where the drive path includes the first and second gears.4. A drive system according to claim 3 , wherein the detected parameter comprises a torque differential between two points in the drive path claim 3 , the two points being one on either side of the engagement between the first and second gears.5. A drive system according to claim 1 , wherein the detected parameter comprises a current draw of a motor providing drive input to the drive system.6. A drive system according to claim 1 , wherein the detected parameter comprises a current demand at a ...

SENSORISED MULTIPLIER

Sensorized gearbox with a plurality of sensors (8) and (14) assembled in a set of fixed parts (5) and (12) to the gearbox (1), measuring loads in the rotating shaft (11) and axial and radial forces derived from wind turbine operation. Sensors (8) and (14) assembled on the selected parts (5) and (12) detect in a specific time interval or during the life of the gearbox, measuring instantaneously and sending data to a control system that regulates the machine's power by controlling the r.p.m., wind turbine ...

DRIVE SYSTEM FOR ROTATING A WHEEL OF A LANDING GEAR

A drive system 20, 20′ for rotating a wheel 11, 11′ of an aircraft landing gear 10, 10′, is disclosed having a drive element 24, 24′, a motor 21, 21′ operable to rotate the drive element, and a driven gear 25, 25′ adapted to be attached to the wheel. The drive system has a drive configuration in which the drive element is capable of meshing with the driven gear to drive the driven gear, wherein the drive system further comprises a transmission error measurement apparatus 30, 40, the apparatus configured to obtain, over time, measurement data of one or more characteristics of the drive system when in the drive configuration, the measurement data providing an indication of a transmission error between a torque commanded by the motor and a resulting torque at the driven gear. An aircraft 100 and a method of providing an indication of a transmission error in a drive system is disclosed.

DIAGNOSTIC SYSTEMS AND METHODS OF A CONTINUOUSLY VARIABLE TRANSMISSION

A diagnostic system of a vehicle for diagnosing a drive belt of a continuously variable transmission. A diagnostic circuit detects or predicts a fault of the drive belt based on an operating parameter received from a sensor associated with the vehicle during a predetermined diagnostic period. 1. A vehicle diagnostic method of a vehicle including an internal combustion engine and a continuously variable transmission (CVT) operatively coupled to the internal combustion engine , the method comprising the steps of:detecting at least one engine crankshaft acceleration variation event of the vehicle using a detection circuit;determining at least one operating parameter received from one or more sensors associated with an operation of the CVT using a monitoring circuit; anddetermining based on the at least one operating parameter when the at least one detected engine crankshaft acceleration variation is related to a fault of the drive belt of the CVT using an alert circuit.2. The diagnostic method of claim 1 , further comprising including an environmental condition parameter as the at least one operating parameter claim 1 , wherein the environmental condition parameter includes at least one of a fuel state signal claim 1 , an engine coolant temperature signal claim 1 , a drive belt temperature signal claim 1 , and a clutch state signal.3. The diagnostic method of claim 1 , further comprising including an engine-based parameter as the at least one operating parameter claim 1 , wherein the engine-based parameter is related to at least one of a crankshaft acceleration signal claim 1 , an engine torque signal claim 1 , and a transmission gear position signal.4. The diagnostic method of claim 1 , further comprising including a driveline-based parameter as the at least one operating parameter claim 1 , wherein the driveline-based parameter is related to at least one of a vehicle speed signal claim 1 , an engine speed signal claim 1 , and a wheel speed signal.5. The diagnostic ...

DURABILITY LIFE MANAGEMENT DEVICE OF POWER TRANSMISSION SYSTEM AND DURABILITY LIFE MANAGEMENT METHOD OF POWER TRANSMISSION SYSTEM

In order to estimate the degree of fatigue in a power transmission system and suitably manage a durability life, this durability life management device of the power transmission system is provided with: an input section which receives an input of vehicle running information including a torque generated by a driving source; a control section which controls the degree of damage to a component of the power transmission system on the basis of the running information and determines, on the basis of the degree of damage, whether the degree of fatigue in the power transmission system is high; and an output section which outputs a signal indicating that the degree of fatigue is high, when the degree of fatigue is determined to be high.

Oil monitoring system of in wheel type running gear and method thereof

The present disclosure periodically monitors an oil condition through a temperature sensor installed in a driving motor of an in-wheel-type running gear, the generated torque of the driving motor, or the like and transmits oil condition information to a driver through a vehicle warning light.

METHOD FOR MONITORING THE OUTPUT OF AN ELECTROMECHANICAL ACTUATOR OF THE ROTARY-LINEAR TYPE

СПОСОБ И УСТРОЙСТВО КОНТРОЛЯ СТЕПЕНИ ИЗНОСА У ЗУБЧАТОГО БАРАБАНА КОНВЕЙЕРА ДЛЯ ГОРНЫХ РАЗРАБОТОК

Предлагается зубчатый барабан (1, 1’), содержащий зубья (3) для зацепления с одной или несколькими цепями (20), оснащенный опорными соединительными элементами (16), которые разъемно удерживают тело (17) уровня отсчета, например натянутую проволоку (17’), в заранее заданном положении. Тело уровня отсчета (17) представляет собой временный эталонный или опорный элемент или поверхность, по которым может определяться положение изнашиваемых поверхностей (10) зубьев (3) зубчатого барабана визуально или путем измерения, в частности, в радиальном направлении (Dr). Зубья (3) могут дополнительно содержать набор меток, (31, 32, 33), соответствующих разнесенным под углом контрольным плоскостям (P1, P2, P3), пересекающимся вдоль оси зубчатого барабана (X). Метки (31, 32, 33) предпочтительно располагаются на гребне или простирающейся радиально наружу поверхности (6) зубьев (3) и используются для определения износа в окружном направлении (Dc). Предлагаемое устройство можно использовать для более простой ...

ПОЛИКЛИНОВОЙ РЕМЕНЬ И СПОСОБ ИНДИКАЦИИ СОСТОЯНИЯ ИЗНОСА НА ПОЛИКЛИНОВОМ РЕМНЕ

Riemenwechselanzeige für automatische Keilriemengetrieben

Rollengewindetrieb mit AOW(Akustische Oberflächenwellen)-Sensor

Die Erfindung betrifft einen Rollengewindetrieb (10), der eine Schraube (12) umfasst, eine Mutter (16), die um und koaxial mit der genannten Schraube (12) angeordnet ist, mehrere Rollen (20), die in einem radialen Zwischenraum (22) zwischen der Schraube (12) und der Mutter (16) angeordnet sind, jeweils an ihren Enden mit Außenverzahnungen (26, 28) versehen sind und die axial beiderseits des Außengewindes (24) angeordnet sind. Kronen (34, 36), die mit der Mutter (16) fest verbunden sind und Synchronisationsinnenverzahnungen (38, 40) aufweisen, stehen mit den Außenverzahnungen (26, 28) der genannten Rollen (20) in Eingriff. Ein Schmiermittel ist im genannten radialen Zwischenraum (22) vorgesehen. Die Mutter (16) ist mit mindestens einer zylindrischen Innenfläche (54, 56) versehen, die axial zwischen einer Krone (34, 36) und dem Innengewinde (18) der Mutter (16) angeordnet ist, wobei der Rollengewindetrieb (10) ebenfalls mindestens einen AOW(Akustische Oberflächenwellen)-Sensor (60, 62) umfasst ...

Getriebe einer Windenergieanlage

Die Erfindung betrifft ein Getriebe (122) einer Windenergieanlage, insbesondere mehrstufiges Getriebe (122) einer Windenergieanlage, wobei das Getriebe (122) ein Getriebegehäuse (125) aufweist. Ferner betrifft die Erfindung eine Windenergieanlage sowie eine Verwendung eines Arbeitsinstruments. Das Getriebe (122) wird dadurch weitergebildet, dass an der Außenseite des Getriebegehäuses (125) wenigstens eine Zugangsöffnung zum Einbringen eines Arbeitsinstruments in das Getriebegehäuse bzw. in den Innenraum des Getriebegehäuses (125) vorgesehen ist und dass im Inneren des Getriebegehäuses (125) wenigstens ein Führungsmittel (201, 202, 203, 204, 205) für das Arbeitsinstrument vorgesehen ist, so dass das Arbeitsinstrument innerhalb des Führungsmittels (201, 202, 203, 204, 205) bewegbar und/oder positionierbar ist, wobei insbesondere mittels des im Führungsmittel (201, 202, 203, 204, 205) eingebrachten oder angeordneten oder anordbaren Arbeitsinstruments Teile des Getriebes (122) im Getriebegehäuse ...

Einrichtung und Verfahren zur Ermittlung des Verschleißes von Kupplungen von Getrieben

Vorrichtung mit Gehäuseteil, Verfahren zur Verschleißbestimmung bei einer Vorrichtung und Verwendung eines Schauglases

Vorrichtung mit Gehäuseteil, Verfahren zur Verschleißbestimmung bei einer Vorrichtung und Verwendung eines Schauglases, wobei das Gehäuseteil einen transparenten Oberflächenabschnitt aufweist, insbesondere einen optisch transparenten Oberflächenabschnitt aufweist, wobei am transparenten Oberflächenabschnitt zumindest eine als Verschleißanzeige verwendete Markierung angeordnet ist.

Instrumented shaft for condition monitoring

A flanged shaft 110, eg a planet carrier shaft in a planetary gearbox of a wind turbine, comprises a shaft 111 for mounting the inner ring of a bearing which is retained by the axially inner surface 114 of a flange 112. The shaft 110 is instrumented with one or more sensor units 130 each having a measuring surface 132 formed by an axially inner surface of at least one contact plate on which one or more sensors are provided, for monitoring bearing operating parameters such as vibration, temperature, acoustic emission or strain. Each sensor unit 130 is arranged in a recess which extends through the flange part 112 such that the measuring surface 132 lies flush with or protrudes somewhat beyond the axially inner surface 114 of the flange part 112. The shaft 110 may have four sensor units 130 arranged evenly around its circumference. The sensor(s) may be powered by one or more batteries housed in a battery box 152 in the other end of the shaft 110.

A method and system for enabling component monitoring redundancy in a digital network of intelligent sensing devices

An aircraft sensor device 102 comprises a first sensor element 106 and a computer processor 108 with memory 110 configured to generate first aircraft information based upon the signal(s) from the first sensing element 106, regarding a first aircraft location. A second sensor device 102 generates information regarding a second aircraft location. Communication from the second sensor device is monitored and a determination of the operability of the second sensor is made, optionally based upon a heartbeat signal, or health status message. Upon detection of a fault or failure with the second sensor device, the first sensor device is configured to switch from a primary to a secondary mode of operation, whereby the first sensing element generates second aircraft information regarding the second aircraft location. Artificial intelligence (AI) may be employed for the determination of sensor faults or failures. The disclosure also includes application to other systems such as submarines, spacecraft ...

A method and system for enabling component monitoring redundancy in a digital network of intelligent sensing devices

V-RIBBED BELT AND METHOD FOR SHOWING A WEAR STATE OF A V-RIBBED BELT

For showing a wear state of a V-ribbed bell, which is constructed with a belt backing (), a tension strand () arranged underneath the belt backing and a carcass (), in which there are formed, in the longitudinal direction of the V-ribbed belt, V-ribs () which run parallel to one another, have in each case an interspace () with respect to one another and have inclined rib flanks (12), wherein the interspaces (), formed for the engagement of pulley ribs () of a V-belt pulley (), between two V-ribs () of the V-ribbed belt extend as far as a rib base () of the V-ribs (), according to the invention a removal of material in the rib base () is detected as a criterion for the wear state. 1. A method for showing a wear state on a V-ribbed belt constructed with a belt backing , a tension strand disposed below the belt backing , and an underside in which are configured V-ribs having oblique rib flanks which in a the longitudinal direction of the V-ribbed belt run mutually parallel and which each have a mutual intermediate space configured for engagement of pulley ribs of a V-rib pulley between two V-ribs of the V-ribbed belt that extend up to a rib base of the two V-ribs , comprising detecting a removal of material in the rib base as a criterion for the wear state.2. The method as claimed in claim 1 , wherein detecting is performed visually claim 1 , wherein a surface in the rib base is formed by a second material and a first visually different material is disposed therebelow claim 1 , and visually identifiable exposure of the first material is utilized as the criterion for the wear state.3. A V-ribbed belt claim 1 , comprising:a belt backing;a tension strand which is disposed below the belt backing; andan underside in which are configured V-ribs having oblique rib flanks which in a longitudinal direction of the V-ribbed belt run mutually parallel and which each have a mutual intermediate space configured for engagement of pulley ribs of a V-belt pulley between two V-ribs of ...

METHOD, APPARATUS AND SYSTEM FOR DETECTING FATIGUE STATE OF COG BELT OF WIND POWER GENERATOR SET

A method for detecting fatigue state of cog belt of wind power generator set is provided, including acquiring pitch angles satisfying preset condition, acquiring signal characteristic values corresponding to the pitch angles, selects from the pitch angles according to acquisition timing sequence of signal characteristic values pitch angles at which signal characteristic value changes, performing characteristic statistics on selected pitch angles to acquire characteristic statistic value and determining whether the cog belt is in fatigue state by comparing characteristic statistic value with predetermined threshold. 1. A method for detecting a fatigue state of a cog belt of a wind power generator set , comprising:acquiring pitch angles satisfying a preset condition;acquiring signal characteristic values corresponding to the pitch angles;selecting, from the pitch angles, pitch angles at which the signal characteristic value changes, according to an acquisition timing sequence of the signal characteristic values;performing characteristic statistics on the selected pitch angles to acquire a characteristic statistic value; anddetermining whether the cog belt is in the fatigue state, by comparing the characteristic statistic value with a predetermined threshold.2. The method for detecting the fatigue state of the cog belt of the wind power generator set according to claim 1 , further comprising:saving the characteristic statistic value and forming a recording file, in response to determine that the cog belt is in the fatigue state.3. The method for detecting the fatigue state of the cog belt of the wind power generator set according to claim 1 , further comprising:determining whether the wind power generator set is in a pitch varying state;wherein determining whether the wind power generator set is in the pitch varying state comprises:determining whether a current pitch angle is greater than a predetermined minimum pitch angle, and in response to a positive determination, ...

ABNORMALITY DIAGNOSTIC METHOD FOR FEED AXIS AND ABNORMALITY DIAGNOSTIC DEVICE FOR THE SAME

It is an object to perform an abnormality diagnosis for a feed axis without additionally adding a sensor or the like. A frequency characteristic of a feed axis and a damage frequency that occurs when the feed axis that has been damaged performs an axis operation are obtained, a frequency where a gain is maximized in the obtained frequency characteristic is calculated, and a feed velocity where the frequency matches the damage frequency is calculated. An axis operation is performed on the feed axis with the calculated feed velocity, and a frequency analysis is performed on servo information regarding a control of a servo motor during the axis operation. Then, the presence and absence of a peak of the damage frequency is confirmed from a result of the frequency analysis, and when the peak is present, it is determined that it is abnormal. 1. An abnormality diagnostic method for feed axis , in a machine including a feed axis that moves a moving body via a ball screw that rotates by a servo motor , the method performing:a frequency obtaining step of obtaining a frequency characteristic of the feed axis and a damage frequency that occurs when the feed axis that has been damaged performs an axis operation;a feed velocity calculating step of calculating a feed velocity configured to detect a peak of the damage frequency from the obtained frequency characteristic;an axis operation step of performing the axis operation on the feed axis with the calculated feed velocity;a frequency analysis step of performing a frequency analysis on servo information regarding a control of the servo motor during the axis operation; anda determining step of confirming presence and absence of the peak of the damage frequency from a result of the frequency analysis to determine the abnormality when the peak is present.2. The abnormality diagnostic method for feed axis according to claim 1 , whereinin the feed velocity calculating step, as the feed velocity, a feed velocity is calculated such that ...

TRANSMISSION HEALTH INDICATION AND LIFE PREDICTION

To detect the occurrence of slippage, a transmission health monitor integrates speed measurements for an engine shaft and a transmission shaft to determine a number of revolutions for each shaft. The monitor then uses a ratio of the revolutions adjusted for a transmission gear ratio to determine whether slippage has occurred. Based on the slippage, the monitor can determine a cumulative amount of wear on a clutch for each gear and track the rate of change of slippage over time to determine a rate at which wear is occurring. The monitor can also correlate slippage calculations with torque measurements to identify operating conditions at which slippage is occurring. The monitor uses the cumulative amount of slippage, the rate of change of slippage, and the operating conditions at which slippage is occurring to estimate a remaining lifespan for a clutch or indicate that a clutch should be repaired or replaced. 1. A method comprising:obtaining first speed measurements for a first shaft and second speed measurements for a second shaft, wherein the first shaft and the second shaft are connected by a transmission;determining, using the first speed measurements and the second speed measurements from a first time window, a number of revolutions of the first shaft and a number of revolutions of the second shaft;calculating, for the first time window, first slip revolutions caused by a first clutch of the transmission based, at least in part, on the number of revolutions of the first shaft and the number of revolutions of the second shaft, wherein the first clutch operates in connection with a first gear range of the transmission; andindicating a health status of the first clutch based, at least in part, on the first slip revolutions.2. The method of further comprising:calculating, for a second time window, second slip revolutions caused by the first clutch; anddetermining a rate of change between the first slip revolutions and the second slip revolutions;wherein indicating ...

APPARATUS AND METHOD FOR DETECTING FAULT IN IN-WHEEL DRIVING SYSTEM OF VEHICLE

An apparatus for detecting a fault in an in-wheel driving system of a vehicle including: an in-wheel motor; at least one speed reduction part coupled to the in-wheel motor through a gear and transferring a rotation force of the in-wheel motor to a wheel; a sensor part sensing rpms of the in-wheel motor and the speed reduction part; and a control unit suitable for calculating an rpm ratio between the in-wheel motor and the speed reduction part by using the respective rpms sensed through the sensor parts and determining whether a damage or a fault has occurred in the speed reduction part, based on the calculated rpm ratio. 1. An apparatus for detecting a fault in an in-wheel driving system of a vehicle , comprising:an in-wheel motor;a speed reduction mechanism coupled to the in-wheel motor through a gear and configured to transfer a rotation force of the in-wheel motor to a wheel;a sensor configured to sense rotational speeds (rpms) of the in-wheel motor and the speed reduction mechanism; anda controller configured to calculate an rpm ratio between the in-wheel motor and the speed reduction mechanism by using the rpms sensed through the sensor and determining whether a damage or a fault has occurred in the speed reduction mechanism based on the calculated rpm ratio.2. The apparatus according to claim 1 , wherein the speed reduction mechanism comprises:a first stage speed reduction mechanism configured to primarily reduce rotation of the in-wheel motor to a predetermined speed reduction gear ratio; anda second stage speed reduction mechanism configured to secondarily reduce rotation of the first stage speed reduction mechanism to a predetermined speed reduction gear ratio.3. The apparatus according to claim 2 , wherein the sensor comprises:a first sensor configured to detect the rpm of the in-wheel motor as an input rpm to the first stage speed reduction mechanism;a second sensor configured to detect an rpm of the first stage speed reduction mechanism as a first output ...

Sheave with structured web

A sheave may include a body portion with a circular circumference and defining a center plane, a bore extending through the body portion and configured for receiving a shaft and allowing the body portion to rotate in the center plane, and a rope groove arranged on the circular circumference, wherein, the body portion comprises a structured profile.

Device for Estimating Degree of Fatigue of Motive Force Transmitting Component, and Method for Estimating Degree of Fatigue of Motive Force Transmitting Component

This device for estimating a degree of fatigue of a motive force transmitting component is a device for estimating the degree of fatigue of a motive force transmitting component in a motive force transmitting system from a motor/generator (drive source) to a driving wheel (wheel), and is provided with an estimation unit which estimates the degree of fatigue of the motive force transmitting component on the basis of the magnitude and direction of torque acting on the motive force transmitting component, and an output unit which outputs a signal indicating that the degree of fatigue has exceeded a threshold if the degree of fatigue exceeds a prescribed threshold that is set in advance.

FAULT NOTIFICATION SYSTEM AND METHOD FOR USE WITH AN IRRIGATION SYSTEM

A fault notification system comprises a plurality of tower sensor units and a central processing element. Each tower sensor unit includes a tower safety sensor and a tower processing element. The tower safety sensor monitors a rotation angle of a mobile tower and output a signal that varies according to the rotation angle. The tower processing element is configured to receive the signal, compare a signal level of the signal with a range of signal levels indicating a normal rotation angle, and transmit a message that a fault has occurred and request that each drive motor shut down if the level of the signal is out of the range indicating a normal rotation angle. The central processing element is configured to receive the message from the tower processing element and transmit a signal to each tower processing element to output a signal to instruct each drive motor to shut down. 1. A fault notification system for monitoring an irrigation system including a plurality of mobile towers and a plurality of spans , each mobile tower including a drive motor and each span positioned between two adjacent mobile towers , for faults and issuing a notification when a fault occurs , the fault notification system comprising: a tower safety sensor configured to monitor or sense a relationship at each mobile tower between an inward span and an outward span and output a tower safety signal or digital data that varies according to the relationship, and', compare a signal level or data value of the tower safety signal or digital data with a range of signal levels or data values indicating a normal relationship, and', 'generate and transmit a message that a fault has occurred; and, 'a tower processing element configured or programmed to receive the tower safety signal or digital data from the tower safety sensor,'}], 'a plurality of tower sensor units, each tower sensor unit including'} 'communicate a notification to a user interface, the notification indicating which mobile tower has the ...

GEAR ASSEMBLY WITH WEAR DETECTION

A gear assembly includes a first gear and a second gear. The first gear rotates about a first axis, and includes a first plurality of teeth and a first surface extending circumferentially and carried by the first plurality of teeth. The first surface is electrically conductive. The second gear rotates about a second axis and is operably connected to the first gear. The second gear includes an electrically conductive element, a second plurality of teeth, and a second surface extending circumferentially and carried by the second plurality of teeth. The second surface is electrically nonconductive. The electrically conductive element includes a plurality of feelers with each feeler projecting radially outward and into a respective tooth of the second plurality of teeth. 1. A gear assembly comprising:a first gear adapted to rotate about a first axis, and including a first plurality of teeth and a first surface extending circumferentially and carried by the first plurality of teeth, wherein the first surface is electrically conductive; anda second gear adapted to rotate about a second axis and operably connected to the first gear, the second gear including an electrically conductive element, a second plurality of teeth, and a second surface extending circumferentially and carried by the second plurality of teeth, wherein the second surface is electrically nonconductive, and the electrically conductive element includes at least one feeler with each feeler projecting radially outward and into a respective tooth of the second plurality of teeth.2. The gear assembly set forth in further comprising:a circuit electrically connected to the first gear and the electrically conductive element, and configured to detect wear of the second plurality of teeth when the first gear is in electrical contact with the electrically conductive element.3. The gear assembly set forth in claim 2 , wherein the first gear is made of a metallic material and the second surface is carried by a layer ...

Dynamic Link Monitoring to Resolve Imbalance in LAA/LTE Radio Resource Allocation

A wireless communication device (UE) may monitor grants received from respective cells associated with one or more first (e.g. licensed) frequency band(s) and one or more second (e.g. unlicensed) frequency band(s). Based on the received grants the UE may determine if an imbalance exists in the radio resource allocation, whereby the UE communicates more than intended in the second frequency band(s). The imbalance may be specified with respect to the ratio or portion of the communications that are conducted in the second frequency band(s) with respect to all wireless communications of the UE. If the UE detects an imbalance, it may transmit a report to the network (e.g. to the base station serving the UE) indicating unfavorable conditions for the UE to be operating in the second frequency band(s). In response, the network may disable the respective cell(s) associated with the second frequency band(s) and/or it may disable carrier aggregation for the UE. 1. An apparatus comprising: communicate wirelessly with a device that conducts wireless communications according to a first radio access technology (RAT) simultaneously in a first frequency band and in a second frequency band;', 'receive an indication from the device, in response to detection of a radio resource allocation imbalance based on the device conducting a higher percentage of the wireless communications in the second frequency band than a previously specified percentage, with respect to a percentage of the wireless communications conducted in the first frequency band; and', 'schedule subsequent wireless communications of the device to take place in the first frequency band and not the second frequency band, in response to receiving the indication., 'a processor configured to cause a base station to2. The apparatus of claim 1 , wherein the first frequency band is a licensed frequency band for the wireless communications and the second frequency band is an unlicensed frequency band for the wireless ...

Device for vehicle including power transfer device

A device for a vehicle including a power transfer device, the power transfer device having an input pulley, an output pulley, and an endless rotary member, the device including: a memory configured to store mapping data that include data that prescribe mapping that represents correspondence between an input variable and an output variable, the data being learned through machine learning, the input variable being at least one of input rotational speed-related data, and output rotational speed-related data, the output variable specifying whether an abnormality is caused in the endless rotary member; and a processor configured to acquire the input variable, acquire the output variable corresponding to the input variable using the mapping data, and determine, based on the output variable, whether an abnormality is caused in the endless rotary member.

SYSTEM AND METHOD FOR UTILIZING WEAR DEBRIS SENSOR TO REDUCE DAMAGE AND EXTEND REMAINING USEFUL LIFE OF GEARBOXES

A system and method employing wear debris sensors to monitor the operation of a lubricated mechanical system such as a gearbox (e.g., in a wind turbine), a transmission or an engine in order to control operation of the gearbox in order to reduce damage and/or extend the useful life of the gearbox. 1. A method for monitoring debris in oil of a wind turbine gearbox , and controlling the wind turbine operation to reduce damage to the gearbox , the method comprising:receiving, from a sensor for monitoring wear debris associated with the wind turbine gearbox, a data signal representing at least one debris-related measurement of the oil of the gearbox;storing the data signal to collect a plurality of data signals spanning a period of time;automatically analyzing the stored data signals to determine if a pattern of debris concentration data indicates damage to the wind turbine gearbox; and if so,modifying operation of the wind turbine, during a period in which damage is determined to be likely to occur, to reduce the amount of damage to the gearbox.2. The method according to claim 1 , further including:obtaining and storing, in memory, data representing one or more environmental characteristics occurring at the wind turbine during the period of time; andanalyzing the stored data signals and the data representing one or more environmental characteristics to identify statistical correlation between increased gearbox debris levels and environmental characteristics, to create an operation model for the wind turbine such that the operation of the wind turbine is proactively modified in anticipation of or directly in response to an environmental characteristic previously determined to cause increased wear or reduce the useful life of the gearbox.3. The method according to where the wind turbine is proactively modified in response to a predicted environmental characteristic.4. The method according to where the predicted environmental characteristic includes wind speed and the ...

BALL SCREW WITH FORCE SENSOR IN RADIAL DIRECTION

A ball screw with force sensor in radial direction including a screw rod, a screw nut, a plurality of balls, and a force sensor is provided. The screw nut has a cavity. The cavity is extended along a radial direction from an outer surface of the screw nut. The force sensor is disposed in the cavity of the screw nut, and the force sensor includes a stationary base and an elastic component. The stationary base includes a displacement restraint, and the elastic component includes a contact end and a fixed end. The displacement restraint is coupled to the cavity to prevent the stationary base from being displaced in the radial direction for fixing stationary base firmly in the cavity. The fixed end is connected to the stationary base, and the contact end contacts a bottom surface of the cavity in order to sense a force along the radial direction. 1. A ball screw with force sensor in radial direction , comprising:a screw rod, an outer surface of the screw rod having an outer groove and the screw rod extending along an axial direction;a screw nut, an inner surface of the screw nut having an inner groove and the screw nut having a cavity, wherein the cavity extends along a radial direction from an outer surface of the screw nut, the screw nut being sleeved on the screw rod such that the screw nut is movable along the axial direction;a plurality of balls, disposed between the outer groove and the inner groove; and [ 'a displacement restraint; and', 'a stationary base, comprising, a contact end, contacting a bottom surface of the cavity; and', 'a fixed end, connected to the stationary base;, 'an elastic component, comprising, 'at least one strain sensor, disposed on the elastic component;, 'a force sensor, disposed in the cavity and comprisingwherein the displacement restraint is coupled to the cavity to prevent the stationary base from being displaced in the radial direction.2. The ball screw with force sensor in radial direction according to claim 1 , wherein a stiffness ...

BALL SCREW WITH A LOAD CONDITION FEEDBACK MECHANISM

A ball screw mountable on a mounting bed includes a screw shaft having a cylindrical shaft body which extends along an axis, and a helical external groove which is provided on the shaft body, a ball nut having a carrier seat which is rotatably sleeved around the shaft body and which has a carrier portion for carrying the mounting bed, and at least one reaction force sensing module attached to the carrier seat and configured to abut against the mounting bed for measuring a reaction force exerted on the mounting bed by the ball nut during displacement of the ball nut along the screw shaft. 1. A ball screw mountable on a mounting bed which is movable in a lengthwise direction , comprising:a screw shaft including a cylindrical shaft body which extends along an axis, and a helical external groove which is provided on said shaft body and helically extends about the axis;a ball nut including a carrier seat which is rotatably sleeved around said shaft body and on which the mounting bed is disposed, said carrier seat having a carrier portion by which the mounting bed is carried; andat least one reaction force sensing module attached to said carrier seat and configured to abut against the mounting bed for measuring a reaction force exerted on the mounting bed by said ball nut during displacement of said ball nut along said screw shaft.2. The ball screw as claimed in claim 1 , further comprising at least one mounting notch which is formed in said ball nut for receiving said reaction force sensing module.3. The ball screw as claimed in claim 2 , wherein said carrier seat has a flange portion which is connected to and opposite to said carrier portion in a direction of the axis claim 2 , said flange portion having a cross-section which is transverse to the direction of the axis and which is dimensioned larger than a cross-section of said carrier portion that is transverse to the direction of the axis to form a shoulder surface adjoined with said carrier portion and facing the ...

ENGINE PULLEY MOVEMENT DETECTION

Pulley-movement detection within an alternator or integrated starter/generator (ISG) for a vehicle is provided. The alternator or ISG includes a housing, a stator fixed within the housing, a rotor configured to rotate relative to the stator about an axis, and a shaft coupled to the rotor for rotation about the axis. The alternator or ISG also includes pulley coupled to the shaft at an interface, and configured to engage with a chain or belt to transfer movement between the shaft and the chain or belt. An electrical switch located at the interface is configured to be in a first state when the pulley is axially secured to the shaft, and a second state when the pulley is axially displaced away from the shaft. This can enable signals or warnings to be output in response to the electrical switch changing states, indicating an improper connection at the interface. 1. An alternator or integrated starter/generator (ISG) for a vehicle , the alternator or ISG comprising:a housing;a stator fixed within the housing;a rotor configured to rotate relative to the stator about an axis;a shaft coupled to the rotor for rotation about the axis;a pulley disposed outside of the housing, coupled to an axial end of the shaft at an interface, and configured to engage with a chain or belt to transfer movement between the shaft and the chain or belt; andan electrical switch located at the interface and configured to be in a closed position when the pulley is axially secured to the shaft, and an open position when the pulley is axially displaced away from the shaft.2. The alternator or ISG of claim 1 , further comprising a strain gauge located at the interface and configured to detect a pressure between the pulley and the shaft.3. The alternator of ISG of claim 2 , wherein the strain gauge and the electrical switch are located within a single sensor housing as part of a combined switch and strain gauge.4. (canceled)5. The alternator or ISG of claim 1 , further comprising a brush at a second ...

CHAIN DRIVE AND TIMING ASSEMBLY OF AN INTERNAL COMBUSTION ENGINE HAVING SUCH CHAIN DRIVE

In a chain drive, the wear of a chain having a plurality of links, each of which is provided with a pair of pivot pins parallel to each other and transversally spaced apart, from each other and at least three strips parallel to one another and arranged side by side is controlled by means of a detection device adapted to detect the breakage of at least one of the strips and to emit a signal indicating to replace the chain itself. 1. A chain drive comprising a driving sprocket , at least one driven sprocket and an endless chain wound around said driving and driven sprockets and comprising a plurality of links; each of said link comprising two pivot pins parallel and transversely spaced apart from each other and at least three strips extending between said two pivot pins and having opposite end portions through which said pivot pins pass , means for controlling wear of said chain; said means for controlling wear comprising detector means for detecting the breakage of at least one of said strips and emitter means for sending a signal for replacement of said endless chain in response to a breakage signal received from said detector means.2. The chain drive according to claim 1 , wherein said detector means comprises at least one portion made of electrically insulating material and one detecting metal portion at least partly housed in said portion of electrically insulating material and adapted to cooperate with friction with the broken strip of said chain.3. The chain drive according to claim 1 , wherein said portion of electrically insulating material cooperates with friction with said endless chain.4. The chain drive according to claim 1 , wherein said portion of electrically insulating material is arranged in a position spaced away from said endless chain.5. The chain drive according to claim 1 , wherein said portion of electrically insulating material comprises a protective external lateral portion facing said endless chain; said metal portion being arranged on the ...

Actuator Assembly

An actuator assembly may comprise a screw shaft having a shaft axis; a drive arrangement pivotally supported about the screw shaft axis for driving the screw shaft, e.g., about the shaft axis or along the shaft axis, and a rod mounted to the drive arrangement at a location off the shaft axis for providing a primary function of reacting torque about the shaft axis on the drive arrangement. The rod may comprise a rod axis and provide a load path along the rod axis for reacting torque. The rod may also comprise a device for which provides a secondary function for the actuator assembly based on the load experienced along the load path provided by the rod. 1. An actuator assembly comprising:a screw shaft having a shaft axis;a drive arrangement pivotally supported about the screw shaft axis for driving the screw shaft; anda rod mounted to the drive arrangement at a location off the shaft axis for providing a primary function of reacting torque about the shaft axis on the drive arrangement, the rod having a rod axis and being arranged to provide a load path that experiences load in a direction along the rod axis in reaction to torque on the drive arrangement,wherein the rod comprises a device which provides a secondary function for the actuator assembly based on the load experienced along the rod load path.2. The actuator assembly as claimed in claim 1 , wherein the device comprises a resilient mechanism claim 1 , preferably a spring arrangement.3. The actuator assembly as claimed in claim 2 , wherein the device comprises a load limiter which activates to limit axial forces in the rod.4. The actuator assembly as claimed in claim 3 , wherein relative movement of a nut along the screw shaft is limited by metal end stops.5. The actuator assembly as claimed in claim 1 , wherein the device is for detecting a performance of the actuator assembly based on load experienced along the rod load path reacting torque on the drive arrangement claim 1 , wherein the device comprises a ...

STATE MONITORING SYSTEM OF GEAR DEVICE AND STATE MONITORING METHOD

A state monitoring system for monitoring state of a gear device having a plurality of gear pairs has a meshing frequency determination device. The meshing frequency determination device includes a maximum-peak-amplitude calculation unit that calculates a maximum peak amplitude from a detected meshing vibration, in estimated frequency ranges and a set harmonic region, and selects such estimated frequencies that a difference in maximum peak amplitude between a plurality of estimated frequency ranges, is less than or equal to a predetermined multiple, and a meshing frequency determination unit that determines an estimated frequency having a total value of maximum peak amplitudes calculated in the plurality of estimated frequency ranges, within a predetermined time, being the k-th (k is a natural number) greatest among the selected estimated frequencies, as a meshing frequency of a gear pair having the k-th highest tooth surface speed. 1. A state monitoring system for monitoring a state of a gear device including a plurality of gear pairs , the state monitoring system comprising a meshing frequency determination device configured to determine a meshing frequency of the plurality of gear pairs in one or both of a speed increaser and a speed reducer each of which is the gear device , a sensor configured to detect a meshing vibration occurring in each gear pair,', 'a harmonic region setting unit configured to perform setting of an upper limit of a multiple of an estimated frequency of the meshing frequency to be inspected as a harmonic region,', 'an inspection frequency range setting unit in which a plurality of estimated frequency ranges to be inspected for the meshing frequency are set,', 'a maximum-peak-amplitude calculation unit configured to calculate a maximum peak amplitude from the meshing vibration detected by the sensor, in the estimated frequency ranges set by the inspection frequency range setting unit and in the harmonic region set by the harmonic region ...

Measuring system and measuring method for detecting variables on planetary carriers of a planetary gear train

A measuring system for detecting variables on planet carriers of a planetary gear train having a plurality of planetary gear stages includes a first sensor which is arranged on one of the planet carriers of one of the planetary gear stages for detecting the variables of a planet gear rotationally connected to the at least one of the planet carriers. An electronics configured for arrangement on the planetary gear train is operably connected to the first sensor for supply of the first sensor with electrical energy.

RUBBER PRODUCT WITH WEAR INDICATING LAYERS

A polymeric product with at least one surface subject to wear or abrasion, at least a portion of which product includes microcapsules of an indicator substance which is released to indicate a state of wear has been reached. The microencapsulated indicator substance may be a fragrance or a colorant. The indicating portion or zone may be a layer or a thin sheet of microcapsules in rubber or in the polymeric material making up the body of the product. There may be more than one indicating layer or zone in the product. The various zones may contain different fragrances or colorants, which may provide progressive indication of the state of wear. 1. An article subject to wear or abrasion in use comprising a polymeric body; a surface subject to wear; one or more indicating layers at or near said surface; wherein each indicating layer comprises a polymeric matrix with microcapsules embedded therein , said microcapsules containing an indicating material comprising a fragrance or a colorant.2. The article of in the form of a drive belt or a transport belt.3. The article of in the form of a V-belt claim 2 , a multi-V-ribbed belt claim 2 , or a toothed belt.4. The article of in the form of a tire.5. The article of in the form of a hose.6. The article of in the form of a wheel.7. The article of wherein an indicating layer resides at the surface subject to wear.8. The article of comprising two or more said indicating layers.9. The article of wherein said indicating layers are contiguous.10. The article of wherein said indicating layers are separated by non-indicating layers.11. The article of wherein at least one said indicating layer is embedded at a predetermined depth below the wear surface at which the degree of wear would indicate the article should be inspected or replaced.12. An article subject to wear or abrasion in use comprising a polymeric body; a surface subject to wear comprising a covering jacket; wherein said jacket comprises a fabric and a treatment; wherein said ...

Secondary load path detection

A nut arrangement for a screw actuator is disclosed for allowing detection of wear in a primary nut of the screw actuator. The nut arrangement comprises a primary nut for providing a primary load path and a secondary nut for providing a secondary load path. An interface ring may link the secondary nut to the primary nut. A sensor is provided to detect relative axial movement between the primary and secondary nuts. During normal operation, the interface ring is seated by a flexible coupling that allows relative axial displacement of the secondary nut to the primary nut to accommodate wear in the primary nut. The sensor can be used to monitor backlash between the primary and secondary nuts to determine wear of the primary nut.

METHOD AND APPARATUS FOR MONITORING SPROCKET WEAR, E.G. IN A MINING CONVEYOR

A sprocket comprising teeth for engaging one or more chains is provided with datum connection portions which releasably support a datum body, such as a tensioned wire in a predefined position. The datum body provides a temporary reference or datum element or surface from which the position of the wear surfaces of the sprocket teeth may be determined by eye or by measurement, particularly in the radial direction. The teeth may further comprise a set of markings corresponding to angularly spaced reference planes intersecting at the sprocket axis. The markings are preferably arranged on the crown or radially outward surface of the teeth and are used to determine wear in the circumferential direction.

ACTUATOR DIAGNOSTICS AND PROGNOSTICS

A system () includes one or more sensors configured for acquiring data related to operational conditions of a motor actuator (), a processor () configured for analyzing the data to determine a status of the motor actuator (), and memory () for storing data representative of the operational conditions. A status indicator is generated based on the analysis of the operational conditions, for example to represent system capabilities, normal operating modes, and failure modes of the motor actuator (). The system () can be configured to communicate the status indicator to a user interface () or higher-level controller (). 1. A motor actuator system comprising:a motor configured to drive a screw shaft and nut assembly into relative rotation about an axis;a thrust rod coupled to the nut assembly, the thrust rod configured to execute reciprocal motion along the axis in response to the relative rotation;one or more sensors configured to acquire sensor data characterizing operational conditions of the motor actuator;memory configured for storing model data representative of the operational conditions for normal operating modes and failure modes of the motor actuator system;a processor configured to generate a status indicator based on analysis of the operational conditions characterized by the sensor data with respect to the model data; andan interface configured to communicate the status indicator to a control device configured for operating the motor actuator.2. The system of claim 1 , wherein at least one of the sensors is configured to acquire sensor data characterizing a component temperature of the motor actuator claim 1 , the status indicator being representative of the component temperature in relation to at least one of the normal operating modes and alternately predictive of component failure based on the temperature in relation to at least one of the failure modes.3. The system of claim 1 , wherein at least one of the sensors is configured to acquire sensor data ...

Power Measurement System Based on Self-Limiting Force

An apparatus is described for measuring the power expended in driving a chain. A light-weight, compact, flexible structure is attached to the chain. The tension within the chain bends the flexible structure; however, the bending of the structure itself limits the maximum amount of force applied to this flexible structure. Thus, the bending of the structure will be limited and nonlinearly dependent on the chain tension. The structure is affixed to the chain such that any up or down movement of the chain is also experienced by the structure. A sensor on this structure such as a strain gauge or an accelerometer (or both) can be used to determine the chain tension. The apparatus also has a sensor to determine the speed of the chain's movement. A microcontroller produces the resulting power data which can be stored or directly provided to the user as audio, visual, or tactile information. 1. An apparatus for measuring power transmitted by a chain , comprising a flexible structure , a means of directly attaching said flexible structure to said chain , wherein said chain can measurably bend said flexible structure with purely elastic deformation and said flexible structure experiences a self-limiting maximum amount of said bending strain so as not to experience more than 400 Nt. (approximately 100 lbs.) of force on said flexible structure.21. The apparatus in , wherein said flexible structure comprises at least one smooth , curved surface with radius of curvature no less than 2 cm along which said chain slides.32. The apparatus in , wherein said flexible structure directly affixes onto said chain wherein said flexible structure has a means to be installed on said chain without requiring said chain to be opened.41. The apparatus in , further comprising a tether line providing a means to hold a constant longitudinal position relative to the main structure while allowing said chain to predominantly determine the lateral and vertical position of said flexible structure.52. The ...

Injection molding machine

An injection molding machine includes a belt transmission mechanism (mold opening/closing mechanism, ejector mechanism, screw drive mechanism, injection mechanism) configured to transmit drive force from a driving shaft (driving pulley) to a driven shaft (driven pulley) by means of a belt. The injection molding machine includes: a cover covering part or entirety of the belt; and a sensor attached to the cover and configured to detect an abnormality of the belt.

METHOD FOR CONTROLLING A MOTOR VEHICLE HAVING A PARK LOCK

A method for controlling a motor vehicle having at least one park lock. A drive train of the motor vehicle has a drive motor, wheel, and a transmission. An operating element actuates the park lock, which can assume a blocking position, in which the park lock blocks the drive train and/or a part of the drive train, and a release position. After actuation of the operating element, the park lock is switched from the release position into the blocking position (or vice versa). Here, the speed of the motor vehicle is determined. After actuation of the operating element and if the park lock assumes the release position beforehand, it is checked whether the speed is greater than a predefined first threshold value. If this check was successful, a first warning signal is produced; and the switching of the park lock into the blocking position is performed. 110-. (canceled)11. A method of controlling a motor vehicle having at least one park lock ,wherein the motor vehicle has a powertrain with at least one drive motor, at least one wheel or multiple wheels, and at least one gearbox, wherein an operating element for actuating the park lock is provided and/or is present and the park lock assumes a blocking position, in which the park lock blocks the powertrain or a part of the powertrain, and a release position in which the park lock releases the powertrain or a part of the powertrain, and wherein, upon an actuation of the operating element, the park lock is switched from the release position to the blocking position or from the blocking position to the release position;the method comprising:determining a speed of the motor vehicle;after an actuation of the operating element and when the park lock assumes the release position beforehand:checking whether the speed of the motor vehicle is greater than a predetermined first threshold value; andif a result of the checking step is positive, generating an first warning signal; andswitching the park lock into the blocking position.12. ...

DRIVING FORCE TRANSMISSION MECHANISM

A driving force transmission mechanism includes a first member being arranged inside an insertion section of an insertion apparatus extending along a predetermined axis, a second member being arranged to be positioned on a movement locus in a circumferential direction of the first member. The mechanism includes a cover member as an outer coat of the insertion section. The cover member is arranged between the first member and the second member to come in contact with at least the second member. The mechanism also includes an indicator being provided on the cover member. The indicator indicates in the cover member a change in state of a surface in contact with the second member. 1. A driving force transmission mechanism comprising:a first member which is arranged inside an insertion section of an insertion apparatus extending along a predetermined axis, is connected to a driving source and is moved in a circumferential direction about a predetermined axis by a driving force from the driving source;a second member which is movable in a circumferential direction about the predetermined axis on an insertion assisting tool attached to an outer periphery of the insertion section, and is arranged to be positioned on a movement locus in the circumferential direction of the first member;a cover member with flexibility which configures an outer coat of the insertion section, and is arranged between the first member and the second member to come in contact with at least the second member; andan indicator which is provided on the cover member and indicates in the cover member a change in state of a surface in contact with the second member.2. The driving force transmission mechanism according to claim 1 , wherein the first member and the second member are respectively arranged to be revolvable in the predetermined axial direction.3. The driving force transmission mechanism according to claim 2 , wherein the first member and the second member are arranged to be rotatable in each ...

LINEAR ACTUATOR WITH TESTABLE CONE NO-BACK AND TORQUE LIMITER

A cone brake no-back includes an input no-back disk, an output no-back disk; and a no-back ball ramp mechanism operably connected to the input no-back disk and the output no back disk. An input no-back cone is operably connected to and supportive of the input no-back disk. The input no-back cone is axially loaded by an input no-back spring. An output no-back cone is operably connected to and supportive of the output no-back disk. The output no-back cone is axially loaded by an output no-back spring. A no-back input shaft is operably connected to the input no-back disk and the output no back disk, and a no-back output shaft is operably connected to the output no back disk. 1. A cone brake no-back , comprising:an input no-back disk;an output no-back disk;a no-back ball ramp mechanism operably connected to the input no-back disk and the output no back disk;an input no-back cone operably connected to and supportive of the input no-back disk, the input no-back cone axially loaded by an input no-back spring; andan output no-back cone operably connected to and supportive of the output no-back disk, the output no-back cone axially loaded by an output no-back spring;wherein a no-back input shaft is operably connected to the input no-back disk and the output no back disk; andwherein a no-back output shaft is operably connected to the output no back disk.2. The cone brake no-back of claim 1 , further comprising an input no-back disk lining configured to reduce friction between the input no-back disk and the input no-back cone.3. The cone brake no-back of claim 2 , wherein the input no-back disk lining is formed from an aramid or composite material.4. The cone brake no-back of wherein the no-back output shaft is a hollow torque shaft.5. The cone brake no-back of claim 4 , wherein the no-back input shaft is coaxial with and disposed radially inside of the no-back output shaft.6. The cone brake no-back of wherein an axial travel of the input no-back cone due to the input no-back ...

CONTROL DEVICE FOR AUTOMATIC TRANSMISSION

A control device for an automatic transmission is provided, which includes a friction engagement element, and a processor configured to execute gear change control logic configured to control a gear change operation by supplying and discharging hydraulic fluid for forming a gear stage to/from the friction engagement element, and lubricant supply control logic configured to control to switching operation of a supply amount of lubricant to the friction engagement element according to an operating state of a vehicle. The processor controls the gear change operation and the switching operation to not overlap with one another. 1. A control device for an automatic transmission , comprising:a friction engagement element; and gear change control logic configured to control a gear change operation by supplying and discharging hydraulic fluid for forming a gear stage to and from the friction engagement element; and', 'lubricant supply control logic configured to control a switching operation to switch a supply amount of lubricant to the friction engagement element according to an operating state of a vehicle,, 'a processor configured to executewherein the processor is further configured to control the gear change operation and the switching operation to not overlap with one another.2. The control device of claim 1 , wherein the processor limits the gear change operation when the lubricant supply control logic performs the switching operation.3. The control device of claim 1 , wherein the processor limits the switching operation when the gear change control logic performs the gear change operation.4. The control device of claim 1 ,wherein the friction engagement element includes a vehicle-propelling friction engagement element configured to be engaged when the vehicle starts traveling, and an other friction engagement element,wherein the control device further comprises a vehicle-propelling friction engagement element temperature detector configured to detect a temperature of ...

TRANSMISSION, IN PARTICULAR, A PLANETARY TRANSMISSION

A planetary transmission for a wind turbine includes a bolt having a cylindrical outer surface and a gear having a cylindrical inner surface rotatably supported on the outer surface of the bolt. The cylindrical outer surface of the bolt and the cylindrical inner surface of the gear are configured to function as a plain bearing, and one or both of these surfaces may include a sliding layer formed from a low friction material. 1. A planetary transmission for a wind turbine , comprising:a bolt having a cylindrical outer surface, anda gear having a cylindrical inner surface rotatably supported on the outer surface of the bolt,wherein the cylindrical outer surface of the bolt and the cylindrical inner surface of the gear are configured to function as a plain bearing.2. The planetary transmission according to claim 1 ,wherein the gear is a planetary gear.3. The planetary transmission according to claim 2 ,wherein the inner surface of the gear and/or the outer surface of the bolt includes a sliding layer.4. The planetary transmission according to claim 3 ,wherein the sliding layer is a cold sprayed layer having a material composition different than a material composition of the gear and a material composition of the bolt.5. The planetary transmission according to claim 3 ,wherein the sliding layer is a cold sprayed layer with a first region having a first material composition and at least one second region having a second material composition different than the material composition of the first region.6. The planetary transmission according to claim 5 ,wherein the first material composition has a first hardness and the second material composition has a second hardness greater than the first hardness.7. The planetary transmission according to claim 6 ,wherein the at least one second region comprises a first second region and a second second region, andwherein the first region is axially disposed between the first second region and the second second region.8. The planetary ...

METHODS AND SYSTEMS FOR PREDICTING RISK OF OBSERVABLE DAMAGE IN WIND TURBINE GEARBOX COMPONENTS

Embodiments disclosed herein may include methods, systems, and tangible, non-transient, computer-readable media having instructions thereupon for determining a damage state of a wind turbine gearbox. A method performed, executed on a processor of a system, or implemented by a processor as instructions, may comprise producing a damage state diagnostic, producing a damage progression model for the wind turbine gearbox using operational data and a state transition function, and combining the damage state diagnostic with the damage progression model using a hybrid prognostics model to produce a probability distribution of a current damage state estimate. Producing the damage state diagnostic may comprise obtaining a measurement dataset for the wind turbine gearbox, integrating field-operator-provided intelligence into the measurement dataset, normalizing the measurement dataset with respect to a known failure behavior for the wind turbine gearbox, and combining the normalized measurement dataset with the known failure behavior to produce the damage state diagnostic. 1. A method for determining a damage state of a wind turbine gearbox of a wind turbine , comprising: obtaining a measurement dataset from the wind turbine;', 'integrating field-operator-provided field intelligence into the measurement dataset;', 'normalizing the measurement dataset with respect to a known failure behavior for the wind turbine gearbox to produce a normalized measurement dataset;', 'combining the normalized measurement dataset with the known failure behavior to produce the damage state diagnostic;, 'producing a damage state diagnostic, comprisingproducing a damage progression model for the wind turbine gearbox using operational data and a state transition function; andcombining the damage state diagnostic with the damage progression model using a hybrid prognostics model to produce a probability distribution for a current damage state estimate.2. The method of claim 1 , wherein the hybrid ...

DRIVE SYSTEM FOR LANDING GEAR AND DRIVE SYSTEM CONTROL METHOD

A method for controlling a separation between rotational axes of a pair of meshing gears is disclosed. A parameter indicative of a transmission error through the gears is measured and the separation is controlled, aiming to minimise variations in the measured signal. This acts to reduce variations in transmission error and the related vibrations created in the drive system and in the surrounding components. A related drive system and aircraft landing gear are described. 1. A drive system for an aircraft landing gear comprising:first and second gears for engagement to transfer a drive input to the system between the first and second gears;an actuator for adjusting a distance between rotational axes of the first and second gears;a sensor for detecting at least one parameter indicative of a transmission error through the first and second gears; anda controller for controlling the actuator to adjust a distance between respective rotational axes of the gears, in response to the detected parameter, when the first and second gears are engaged to minimise the transmission error.2. A drive system according to claim 1 , wherein the detected parameter comprises a distance measured between respective rotational axes of the first and second gears.3. A drive system according to claim 1 , wherein the detected parameter comprises a torque measured at one or more points in a drive path from a motor to a wheel of an aircraft landing gear where the drive path includes the first and second gears.4. A drive system according to claim 3 , wherein the detected parameter comprises a torque differential between two points in the drive path claim 3 , the two points being one on either side of the engagement between the first and second gears.5. A drive system according to claim 1 , wherein the detected parameter comprises a current draw of a motor providing drive input to the drive system.6. A drive system according to claim 1 , wherein the detected parameter comprises a current demand at a ...

EFFECTIVE CHAIN-TYPE CVT DYNAMICS ANALYZING METHOD

An effective chain-type CVT dynamic analysis method according to the present invention is capable of extracting stiffness data and deformation amount for each position from the pulley configuring in a flexible body and inputting into the pulley of the continuously variable transmission (CVT) system configuring in a rigid body to quickly and accurately calculate the deformation of the pulley due to contact with the pins of the chain. 2. The method of claim 1 ,wherein the analysis reference point is set in plural at predetermined intervals along a radial direction of the pulley.3. The method of claim 2 ,wherein the analysis reference point is set in plural at predetermined intervals along a circumferential direction of the pulley.4. The method of claim 1 , wherein claim 1 , in the deformation amount data extraction step claim 1 , the deformation amount according to a stiffness of the point located in a circumferential direction based on the analysis reference point to which the load is applied is calculated.5. The method of claim 1 , wherein the effective chain-type CVT dynamics analysis method performed by a CVT dynamics analysis system further comprises:a system model configuration step of configuring a model of a continuously variable transmission based on multi-body dynamics,a stiffness data application step of mapping data calculated in the pulley stiffness analysis step for each position of the pulley configured in the system model configuration step, andan analysis result calculation step of calculating the deformation amount of the pulley due to the contact with a chain pin of a continuously variable transmission.6. The method of claim 5 , wherein claim 5 , in the stiffness data application step claim 5 , the stiffness data and deformation amount data of the analysis reference point calculated in the stiffness analysis step are mapped to a point corresponding to the analysis reference point.7. The method of claim 6 , wherein claim 6 , in the stiffness data ...

Device and method of measuring powertrain backlash

The present invention in one or more embodiments provides a device to measure backlash of an equipment powertrain, where the device includes a head to attach to the equipment powertrain, and a body to support the head, the body including a first connector via which a predetermined amount of torque is to be applied to the equipment powertrain through the body and the head, and a positional change of the equipment powertrain in response to the predetermined amount of torque being indicative of a backlash measurement.

Method for determining belt life

A control module-implemented method for estimating an end of life a belt transferring torque between at least two rotating members of a belt drive system includes monitoring a plurality of belt parameters during a life cycle of the belt and determining an instantaneous damage factor of the belt based on the plurality of belt parameters. The end of life of the belt is estimated based on the instantaneous damage factor.

SPROCKET WHEEL FOR A BICYCLE DRIVE

An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages. 1. A single chain wheel for a bicycle front crank arrangement for engaging in a roller drive chain , comprising:a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth, wherein the teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth, the teeth of the first group of teeth comprise a portion of greater material thickness than the teeth of the second group of teeth in a direction transverse with respect to a circumferential direction of said chain wheel,wherein each tooth has a load flank, via which force is transmitted between an adjacent chain roller of the drive chain and the respective tooth, andwherein the teeth of the second group of teeth in the radial direction of the individual chain wheel are formed with a lower height than the teeth of the first group of teeth, wherein the teeth of the second group of teeth have a height in the range from about 85% up to 90% of the height of the teeth of the first group of teeth.2. The single chain wheel according to claim 1 , wherein each tooth of the first group of teeth and/or each tooth of the second group of teeth is provided with a tapered tooth crest.3. The single chain wheel according to claim 1 , wherein the ...

APPARATUS FOR DIAGNOSING REMAINING BELT LIFE

An apparatus for diagnosing remaining belt life is configured to diagnose the remaining life of a belt driven by an engine. The remaining life of the belt is diagnosed based on frequency distribution of an operation point that is made up of speed of the engine and a load factor of the engine or a fuel injection rate. This makes it possible to achieve accurate diagnosis of the remaining life of the belt. 1. An apparatus for diagnosing remaining belt life that is configured to diagnose remaining life of a belt driven by an engine , wherein the remaining life of the belt is diagnosed based on frequency distribution of an operation point that is made up of a speed of the engine and a load factor of the engine or a fuel injection rate.2. The apparatus according to claim 1 , wherein a deterioration degree of the belt is set based on the frequency distribution and a plurality of determination maps defined for respective deterioration degrees of the belt claim 1 , and the remaining life is diagnosed based on the set deterioration degree.3. The apparatus according to claim 2 , wherein among the determination maps claim 2 , the determination map for a higher deterioration degree is higher in frequency of the operation point being within a resonance area than the determination map for a lower deterioration degree claim 2 , the resonance area being an operation area of the engine where resonance is generated on the belt.4. The apparatus according to claim 2 , wherein among the determination maps claim 2 , the determination map for a higher deterioration degree is higher in frequency of an idle operation point relating to idle operation of the engine than the determination map for a lower deterioration degree.5. The apparatus according to claim 1 , wherein when claim 1 , in the frequency distribution claim 1 , the frequency of the operation point being within the resonance area where resonance is generated on the belt is high claim 1 , the remaining life is diagnosed to be ...

Measuring Backlash of a Drive Train

Apparatus and methods for measuring backlash of a drive train of an equipment unit. The drive train may comprise an input member operatively connected with an actuator and an output member operatively connected with a work portion of the equipment unit. An example apparatus may include a sensor operable to facilitate operational measurements indicative of an operational parameter associated with the drive train, and a processing device operable to cause the actuator to move the input member until the output member moves, record the operational measurements while the actuator moves the input member, and determine a backlash of the drive train by determining a difference between the operational measurements when the input member starts to move and the operational measurements when the output member starts to move.

BELT WEAR INDICATION

In accordance with an example embodiment, a continuous belt may include an outer surface having a first edge spaced apart from a second edge defining a belt width, and a first wear indication positioned on the outer surface near the first edge and having a first width, the first width is less than the belt width, and the first width represents the amount of allowable wear of the continuous belt. 1. A continuous belt comprising:an outer surface having a first edge spaced apart from a second edge defining a belt width; anda first wear indication positioned on the outer surface adjacent the first edge and having a first width, the first width is less than the belt width, and the first width represents the amount of allowable wear of the first edge of the continuous belt.2. The continuous belt of claim 1 , wherein the first width is 5%-15% of the belt width.3. The continuous belt of claim 1 , wherein the continuous belt is worn and needs replaced when the belt width is reduced by the first width and the first wear indication is no longer visible.4. The continuous belt of claim 1 , further comprising:a second wear indication positioned on the outer surface adjacent the second edge and having a second width, the second width is less than the belt width, and the second width represents the amount of allowable wear of the second edge of the continuous belt.5. The continuous belt of claim 4 , wherein the first and second widths are substantially equal.6. The continuous belt of claim 4 , wherein the continuous belt is worn and needs replaced when the belt width is reduced by the first and second widths and the first and second wear indications are no longer visible.7. The continuous belt of claim 4 , further comprising:a third wear indication positioned on the outer surface adjacent the first wear indication, the third wear indication represents the continuous belt is worn and needs replaced when only the third indication is visible.8. The continuous belt of claim 4 , further ...

PROCESS AND DEVICE FOR THE SUPERVISION OF THE KINEMATICS OF AN EPICYCLIC PLANETARY GEARBOX

A method for monitoring the kinematics of an epicyclic planetary gearbox to be tested, wherein 1. A method for monitoring the kinematics of an epicyclic planetary gearbox under test , whereina) in a training phase, a model of the kinematics is determined by pattern recognition based on data measured at an epicyclic planetary gearbox by means of a vibration sensor device; wherein subsequentlyb) the model is used in a test phase for pattern recognition in oscillation data of an epicyclic planetary gearbox to be tested, wherein angular positions of at least one planetary wheel in the epicyclic planetary gearbox to be tested are determined by means of the pattern recognition.2. The method according to claim 1 , wherein an estimate of an initial angular position of the planetary wheels is determined in the test phase by means of the pattern recognition.3. The method according to claim 1 , wherein the model that is determined based on the pattern recognition has a Hidden Markov model structure and/or an artificial neuronal net structure.4. The method according to claim 1 , wherein the training phase extends at least over at least a time period that is necessary for tooth meshing periodicity (n) claim 1 , in particular over a time period for an integral multiple of the tooth meshing periodicity (n).5. The method according to claim 1 , wherein the training phase has a preprocessing step in which a filtering of the oscillation data claim 1 , a noise reduction of the oscillation data claim 1 , and/or a rotation-angle synchronous post-scanning claim 1 , in particular with the TSA algorithm claim 1 , are performed claim 1 , and/or a feature detection step.6. The method according to claim 1 , wherein the training phase performs a classification step with the classifier claim 1 , which in particular chronologically followings the preprocessing step claim 1 , wherein the result of the classification comprises an output probability matrix for the Hidden Markov model with parameters ...

GEARBOX SENSOR ARRANGEMENT

A gearbox monitoring system can include a fan, compressor, combustor, and turbine in axial flow arrangement, with corresponding rotating components mounted to a shaft, and a gearbox assembly operably coupled to the shaft and connecting the turbine and the fan. The gearbox assembly can include a carrier, a sun gear, at least one planet gear, and a ring gear. An oil feed tube is coupled to the gearbox for lubricating at least one of the sun, ring or planet gears. A plurality of bearings rotationally supports at least one of the sun gear, ring gear, or planet gear relative to the carrier. In addition, at least one vibration sensor is carried by one of the carrier or ring gear and is in wireless communication with an engine control unit or health monitoring unit. 1. A gearbox assembly comprising:a carrier;a sun gear, a ring gear encircling the sun gear, and a planet gear enmeshed with both the sun gear and ring gear;an oil feed tube coupled to the gearbox for lubricating at least one of the sun, ring or planet gears;a plurality of bearings rotationally supporting at least one of the sun gear, ring gear, or planet gear relative to the carrier; andat least one vibration sensor carried by one of the carrier or ring gear.2. The gearbox assembly of wherein the vibration sensor is mounted adjacent with one of the plurality of bearings.3. The gearbox assembly of wherein the vibration sensor comprises a vibration-powered generator.4. The gearbox assembly of wherein the vibration sensor is one of a piezo electric transducer or an accelerometer.5. The gearbox assembly of further comprising an aperture in one of the carrier or ring gear to mount the at least one vibration sensor.6. The gearbox assembly of wherein the at least one vibration sensor outputs a signal indicative of one of bearing vibrations or oil vibrations.7. The gearbox assembly of further comprising an antenna in communication with the vibration sensor.8. The gearbox assembly of wherein the antenna is mounted on ...

GEARBOX COMPONENT AND LUBRICANT CONDITION MONITORING SYSTEM

A monitoring system for a gearbox having at least one rotational component having a design lifetime and at least one design parameter is disclosed. The monitoring system may include a first sensor configured to generate a first signal indicative of a speed associated with the at least one rotational component, a second sensor configured to generate a second signal indicative of a torque associated with the rotational component, and a controller electronically connected to the first and second sensors. The controller may be configured to determine a remaining lifetime of the at least one rotational component based on the design lifetime, the at least one design parameter, and the first and second signals over a period of operating time, and generate a maintenance signal based on the remaining lifetime. 1. A monitoring system for a gearbox having at least one rotational component with a design lifetime and at least one design parameter , the monitoring system comprising:a first sensor configured to generate a first signal indicative of a speed associated with the at least one rotational component;a second sensor configured to generate a second signal indicative of a torque associated with the rotational component; and determine a remaining lifetime of the at least one rotational component based on the design lifetime, the at least one design parameter, and the first and second signals over a period of operating time; and', 'generate a maintenance signal based on the remaining lifetime., 'a controller electronically connected to the first and second sensors and configured to2. The monitoring system of claim 1 , wherein the maintenance signal is indicative of a need to perform gearbox maintenance before a threshold time period will elapse.3. The monitoring system of claim 1 , wherein the at least one design parameter includes one or more of a design torque and a design speed.4. The monitoring system of wherein the controller is configured to determine the remaining ...

ACTUATOR UNIT, ROBOT INCLUDING THE SAME, AND REDUCING APPARATUS

An actuator unit, a robot including the same, and a reducing apparatus, the actuator unit including a driving unit; a sensor unit; a control unit; and a frame unit. 1. An actuator unit , comprising: a motor that generates a rotational force for rotating an object,', 'a decelerator that is connected to the motor and that reduces a rotation speed according to a deceleration ratio, and', 'an encoder that detects rotation information of the motor, wherein the decelerator, the motor, and the encoder are vertically coupled through an input hollow shaft;, 'a driving unit that includes a sensor frame on which a sensor is mounted,', 'a sensor board that amplifies a signal from the sensor, and', 'a sensor coupling unit that blocks disturbance and noise from the driving unit, the sensor coupling unit being disposed over the driving unit;, 'a sensor unit that includes a motor controller that controls the motor based on the rotation information of the motor from the encoder,', 'a power converter that converts a current signal from the motor controller into a pulse signal and applies the pulse signal to the motor, and', 'a power supply unit that converts external main power into power suitable for individual elements and that supplies the suitable power, the power supply unit being coupled to the input hollow shaft and under the driving unit; and, 'a control unit that includes a motor frame that supports the motor,', 'an encoder frame that supports the encoder, and', 'a connection frame that connects the driving unit to the sensor unit., 'a frame unit that includes2. The actuator unit as claimed in claim 1 , wherein the control unit includes a single-layer board that is coupled to the input hollow shaft or a multi-layer board that is coupled to the input hollow shaft.3. The actuator unit as claimed in claim 1 , wherein:the control unit includes a multi-layer board that is coupled to the input hollow shaft, and a control board on which the motor controller is disposed,', 'an ...

Method for Detecting the Origin Position of a Shift Element

A method for recording an initial position of at least one positive-locking shifting element (A, F) of a transmission of a vehicle is proposed, whereas an initial position of the shifting element (A, F) is determined and assigned depending on a recorded operating pressure curve (III) for the actuation of the shifting element (A, F).

Slew drive with integrated reducer assembly

A slew drive comprises a worm gear which is integrated with a reducer assembly. One end of the worm gear operates as a carrier which engages a plurality of planetary gears which are part of the reducer assembly. The carrier may be a separate component that is coupled with the worm gear. Alternatively, one end of the worm gear can be machined to operate as the carrier. The carrier engages a plurality of planetary gears via a plurality of holes.

Vehicular continuously variable transmission, vehicle equipped with vehicular continuously variable transmission, and method of controlling vehicular continuously variable transmission

A belt-type continuously variable transmission includes an actual gear ratio calculation unit for calculating an actual gear ratio based on the rotation speed of a drive pulley and the rotation speed of a driven pulley, a reference gear ratio calculation unit for calculating a reference gear ratio by modifying the actual gear ratio based on an input torque and a driven pulley hydraulic pressure, and a condition determination unit for, in a case where the target gear ratio is an overdrive gear ratio, determining that at least part of rings of a belt is missing when the reference gear ratio is greater than or equal to a predetermined gear ratio and a drive pulley hydraulic pressure is greater than or equal to a predetermined hydraulic pressure.

Belt having a data-transferring device

The invention relates to a belt ( 1 ) having a rear surface ( 2 ), having a data transmission device ( 3, 6, 7, 8, 9, 10 ), wherein the data transmission device ( 3, 6, 7, 8, 9, 10 ) has at least one sensor ( 6 ) having an energy supply and at least one external reader ( 9 ). The invention is based on the object of designing the data transmission device mentioned at the outset such that data from a moving belt ( 1 ) are able to be reliably transmitted to a stationary receiver ( 9 ). This object is achieved in that spaced signal surfaces ( 3 ) are arranged on the rear surface ( 2 ) of the belt ( 1 ) in the running direction of the belt ( 1 ), and each signal surface ( 3 ) is able to be switched either into a first active state or into a second inactive state by the sensor ( 6 ), wherein a positive signal is able to be transmitted in the first active state and either a negative signal or no signal is able to be transmitted in the second inactive state, and the respective state of the signal surfaces ( 3 ) is able to be acquired by the external reader ( 9 ) when the moving belt ( 1 ) runs past. Since only one item of binary information is able to be transmitted per signal surface ( 3 ), the information density, even when the signal surfaces ( 3 ) run past the reader ( 9 ) at high speed, is low enough that it is possible to reliably acquire the states of the signal surfaces ( 3 ). Reliable acquisition of the data to be transmitted by the sensor ( 6 ) is thereby guaranteed, even when the belt ( 1 ) is running at high speed.

NO-BACK CHECK DEVICE

A device and method for determining whether a no-back device is functioning properly includes a no-back device coupling an input shaft and an output shaft. A no-back output gear is coupled to the output shaft, and a reaction gear is operably coupled to the no-back output gear. A check device includes a rotatable drive feature having a first end accessible for rotation and a second end engaged with the reaction gear. The functionality of the no-back device is evaluated by applying a rotational torque to the drive feature. 1. A method for verifying the functionality of a no-back device comprising:locking an output shaft against rotation and allowing an input shaft to freely rotate;removing a stop device from a check device to allow free rotation of a drive feature;rotating the drive feature in a first direction to a first position;evaluating the rotation of an input shaft;rotating the drive feature in a second, opposite direction to a second position; andevaluating the rotation of the input shaft.2. The method according to claim 1 , wherein the stop device is a lock washer.3. The method according to claim 1 , wherein the stop device is a cover plate having a protrusion that aligns with a first end of the drive feature.4. The method according to claim 1 , wherein the rotation of the drive feature causes a rotation of a reaction gear coupled to a no-back output gear disposed on an input shaft.5. The method according to claim 4 , wherein the rotation of the no-back output gear is magnified compared to the rotation of the drive feature.6. The method according to claim 1 , wherein in the first position claim 1 , the drive feature is rotated 90 degrees from a normal position.7. The method according to claim 1 , wherein in the second position claim 1 , the drive feature is rotated 90 degrees from a normal position. This application is a divisional of U.S. patent application Ser. No. 13/413,858, filed Mar. 7, 2012, the disclosure of which is incorporated by reference herein ...

SYSTEMS AND METHODS FOR MONITORING BELT TENSION AND DETERMINING BELT LIFESPAN IN A TRANSPORT REFRIGERATION UNIT

Methods and systems for monitoring belt tension and determining belt lifespan in a TRS are disclosed. An embodiment of a self-tensioner can include a sensor connected to a self-tensioner in a belt driven system and a magnet that passes over the sensor to generate a signal. The sensor detects the signal, and the signal in conjunction with an angle of the magnet is converted into a voltage value. The method can include a controller connected to the self-tensioner, the controller converts the voltage value into a tension value, and stores the tension value among a plurality of premeasured tension values in a memory, where the controller compares the tension value and the plurality of premeasured tension values to determine a belt tension condition of the belt in the belt-driven system. 1. A self-tensioner system , comprising:a belt driven system that includes a self-tensioner and a belt;a sensor connected to the self-tensioner;a magnet that passes over the sensor to generate a signal, wherein the sensor detects the signal, and the signal in conjunction with an angle of the magnet is converted into a voltage value; anda controller connected to the self-tensioner, wherein the controller receives the voltage value, converts the voltage value into a tension value, and stores the tension value among a plurality of premeasured tension values in a memory,wherein the controller compares the tension value and the plurality of premeasured tension values to determine a belt tension condition of the belt in the belt-driven system.2. The system of claim 1 , wherein the plurality of premeasured tension values each have a corresponding belt lifespan claim 1 , and the tension value is directly proportional to the corresponding belt lifespan.3. The system of claim 1 , wherein the memory stores a corresponding belt lifespan for each premeasured tension value among the plurality of premeasured tension values claim 1 , and wherein the corresponding belt lifespan is based on a generated ...

Sprocket wear gauge

Various embodiments illustrated herein disclose a sprocket wear gauge. The sprocket wear gauge comprises a first plate having a first opening of a first diameter and a second plate having a second opening of a second diameter. The first plate is mounted on one end of adjacent sprocket teeth of a plurality of sprocket teeth of a sprocket wheel. The second plate is mounted on an opposite end of the adjacent sprocket teeth of a plurality of sprocket teeth of a sprocket wheel. The first plate and the second plate are attached to each other using screws. A cylindrical pin is placed between the adjacent sprocket teeth and is configured to pass through at least one of the first opening of the first plate and the second opening of the second plate.

PLANETARY TRANSMISSION

A planetary transmission includes a planetary stage and a FOFW system having an interrogation unit, a locally fixed antenna electrically connected to the interrogation unit and arranged within a housing of the planetary stage, and a plurality of FOFW sensors fastened to planet gear pins of the planetary stage such that at least two of the FOFW sensors are fastened to each of the planet gear pins. A plurality of co-rotating antennae are fastened to the planet gear carrier at a number corresponding to a number of the planet gear pins. The co-rotating antennae are each electrically connected to at least one of the FOFW sensors and arranged and configured such as to transfer measurement data detected by the FOFW sensors to the locally fixed antenna. 113.-. (canceled)14. A planetary transmission , comprising:a housing;a planetary stage including a sun gear shaft rotatably mounted on the housing, a sun gear operably connected to the sun gear shaft, a planet gear carrier rotatably mounted on the housing, at least two planet gear pins fastened to the planet gear carrier, planet gears rotatably held on the planet gear pins, respectively, and a ring gear fastened non-rotationally within the housing and having an internal toothing, said ring gear being in engagement with the planet gears; anda FOFW system including an interrogation unit, a locally fixed antenna electrically connected to the interrogation unit and arranged within the housing, a plurality of FOFW sensors fastened to the planet gear pins such that at least two of the FOFW sensors are fastened to each of the planet gear pins, and a plurality of co-rotating antennae fastened to the planet gear carrier at a number corresponding to a number of the planet gear pins, said co-rotating antennae each being electrically connected to at least one of the FOFW sensors and arranged and configured such as to transfer measurement data detected by the FOFW sensors to the locally fixed antenna.15. The planetary transmission of ...

BELT REPLACEMENT DETERMINATION DEVICE AND REPLACEMENT DETERMINATION METHOD

A belt replacement determination device includes a drive control section configured to drive, based on an evaluation operation set in advance, two or more motors out of a plurality of motors which drive joint shafts of a robot, the two or more motors including the motor which drives at least one of the joint shafts through pulleys and belts; a detection section configured to detect motor torques of the two or more motors which vary according to the evaluation operation; a torque difference calculation section configured to calculate a difference between the motor torques detected of the two or more motors; a difference variation amount calculation section configured to calculate a variation amount between two differences detected at two points of time; and a determination section configured to determine replacement of the belt upon an absolute value of the variation amount calculated exceeding a predetermined threshold. 1. A belt replacement determination device comprising:a drive control section configured to drive, based on an evaluation operation set in advance, two or more motors out of a plurality of motors which drive joint shafts of a robot, the two or more motors including the motor which drives at least one of the joint shafts through pulleys and belts;a detection section configured to detect motor torques of the two or more motors which vary according to the evaluation operation;a torque difference calculation section configured to calculate a difference between the detected motor torques of the two or more motors;a difference variation amount calculation section configured to calculate a variation amount between two differences detected at two points of time; anda determination section configured to determine replacement of the belt upon an absolute value of the variation amount calculated exceeding a predetermined threshold.2. The belt replacement determination device according to claim 1 , wherein the difference in motor torque between two motors which ...

GEAR ASSEMBLY WITH WEAR DETECTION

A gear assembly includes a first gear and a second gear. The first gear rotates about a first axis, and includes a first plurality of teeth and a first surface extending circumferentially and carried by the first plurality of teeth. The first surface is electrically conductive. The second gear rotates about a second axis and is operably connected to the first gear. The second gear includes an electrically conductive element, a second plurality of teeth, and a second surface extending circumferentially and carried by the second plurality of teeth. The second surface is electrically nonconductive. The electrically conductive element includes a plurality of feelers with each feeler projecting radially outward and into a respective tooth of the second plurality of teeth. 1. A gear assembly comprising:a first gear adapted to rotate about a first axis, and including a first plurality of teeth and a first surface extending circumferentially and carried by the first plurality of teeth, wherein the first surface is electrically conductive; anda second gear adapted to rotate about a second axis and operably connected to the first gear, the second gear including an electrically conductive element, a second plurality of teeth, and a second surface extending circumferentially and carried by the second plurality of teeth, wherein the second surface is electrically nonconductive, and the electrically conductive element includes at least one feeler with each feeler projecting radially outward and into a respective tooth of the second plurality of teeth.2. The gear assembly set forth in further comprising:a circuit electrically connected to the first gear and the electrically conductive element, and configured to detect wear of the second plurality of teeth when the first gear is in electrical contact with the electrically conductive element.3. The gear assembly set forth in claim 2 , wherein the first gear is made of a metallic material and the second surface is carried by a layer ...

Life estimation system

The life estimation system is a life estimation system that estimates a life of the reduction gear including a reduction mechanism. The life estimation system includes a sensor that is to be mounted onto the reduction gear and detects information for identifying a stress generated in a specific part of the reduction gear, and an estimating unit that identifies the stress generated in the specific part based on detection information obtained by the sensor and estimates the life of the specific part based on the identified stress.

SPROCKET WHEEL FOR A BICYCLE DRIVE

An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages. 1. An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain , said individual chain wheel comprising:a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth, wherein the teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth,wherein each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and a respective tooth of the plurality of teeth,wherein each tooth of the first group has at least one profile with an opening in a vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages, andwherein the load flank and the at least one profile of at least one tooth of the first group of teeth are geometrically designed and arranged with respect to each other in such a manner that, even in the event of wear involving stressing of the load flank as a consequence of transmission of force via the rollers during operation of the individual chain wheel, an unobstructed disengagement of the respective roller adjacent to the load flank and of the tooth is ensured.2. The individual chain wheel according to claim 1 , wherein ...

METHODS, MATERIALS AND APPARATUS FOR CLEANING AND INSPECTING GIRTH GEAR SETS

A one-step method of cleaning a girth gear set of a mill in preparation for inspection is provided, the method comprising: substantially emptying the mill; inching the gear; spraying a low, very low or non-Volatile Organic Compound (VOC) cleaning formulation at high pressure onto the gear, the cleaning formulation comprising a non-VOC aliphatic hydrocarbon solvent, an extreme pressure lubricant, a fretting wear lubricant, a non-ionic surfactant, and a mixture of non-VOC unsaturated fatty alcohols; and continuing to spray the low or very low VOC cleaning formulation on the gear for sufficient time for the formulation to clean the gear, thereby providing a so cleaned gear. 1. A method of cleaning one or more of a girth gear tooth of a mill and a pinion gear tooth of the mill in preparation for inspection , the method comprising: spraying a low Volatile Organic Compound (VOC) , very low VOC or non-VOC cleaning formulation onto the gear tooth , the cleaning formulation comprising a VOC-exempt hydrocarbon-based solvent , an extreme pressure lubricant , a fretting wear lubricant , a non-ionic surfactant , and a mixture of non-VOC unsaturated fatty alcohols; and continuing to spray the low VOC , very low VOC or non-VOC cleaning formulation on the gear tooth for sufficient time for the formulation to clean the gear tooth , thereby providing a so cleaned gear.2. The method of claim 1 , wherein spraying is at high pressure as the mill is inched.3. The method of claim 2 , wherein the high pressure is about 1500 to about 5000 psi.4. The method of claim 1 , wherein the mill is inched between one to about three revolutions.5. The method of claim 4 , wherein the low VOC claim 4 , very low VOC or non-VOC cleaning formulation comprises about 53% to about 80% w/w hydrotreated light naptha solvent claim 4 , about 1% w/w non-ionic surfactant claim 4 , about 9% to about 19% w/w unsaturated fatty alcohols claim 4 , about 3% w/w fretting wear lubricant and about 5% to about 14% w/w ...

METHOD FOR ESTIMATING THE PLAY IN AN ELECTROMECHANICAL ACTUATOR

The invention proposes a method for characterizing the amplitude (AS) of play (S(t)) in an electromechanical actuator (), the electromechanical actuator comprising an electric motor () and a movable element () that is able to be moved by the motor, the actuator () comprising an upstream sensor () suitable for measuring a position (Xl(t)) of the motor and a downstream sensor () suitable for measuring a position (X2(t)) of the movable element, and a force sensor () suitable for measuring a load (Fl(t)) applied to the movable element, the method comprising steps of: (El) measuring the position (Xl(t)) of the motor, the position (X2(t)) of the movable element and the load (Fl(t)) applied to the movable element using the three sensors; (E2) on the basis of a computer model of the actuator and of the measured position (Xl(t)) of the motor, of the measured position (X2(t)) of the movable element and of the measured load (Fl(t)) applied to the movable element, estimating a value of the amount of mechanical play (S(t)) using a state observer and considering the play (S(t)) to be a state component; and (E3) determining the amplitude (AS) of the play from a set of values of the dynamic variable, which values are obtained in the preceding step at various times (t). 19-. (canceled)12. The method according to claim 10 , wherein the state observer is a Kalman observer.13. The method according to claim 12 , wherein the Kalman estimator is discretized.14. The method according to claim 10 , wherein the amplitude of the play (ΔS) is calculated as a deviation between an average of the maximal values of the estimated play (S) and an average of the minimal values of the estimated play (S) from among the set of values of the play.16. The method according to claim 10 , wherein the actuator is mounted on an aircraft and wherein the measuring step is conducted in flight with an operational profile.18. An electromechanical actuator and associated monitoring unit claim 17 , the monitoring unit ...

METHOD AND SYSTEM FOR WEAR MONITORING USING RF REFLECTIONS

In an embodiment, a system for wear monitoring, includes a wear surface, a metallic reflector embedded in the wear surface, a radio-wave transmitter, and a radio-wave receiver. The metallic reflector reflects radio waves transmitted by the radio-wave transmitter for detection by the radio wave receiver. Attenuation of the radio waves between transmission by the radio-wave transmitter and detection by the radio-wave receiver indicates a degree of wear of the wear surface. 113-. (canceled)14. A system for wear monitoring , comprising:A non-metallic wear surface;a redundant transceiver wear sensor in the wear surface;a recessed reflector antenna;wherein the change in resistance of the redundant transceiver wear sensor indicates the degree of wear of the non-metallic wear surface, and the connected recessed reflector antenna transmits the resistance information as an assessment of wear as a function of time.15. The system for wear monitoring of claim 14 , wherein the wear surface is a tire.16. The system for wear monitoring of claim 14 , wherein the wear surface is a non-metallic liner.17. The system of claim 14 , wherein the recessed reflector antenna is a parabolic reflector. This application is a continuation of U.S. patent application Ser. No. 15/730,465, filed on Oct. 11, 2017. U.S. patent application Ser. No. 15/730,465 claims priority to U.S. Provisional Patent Application No. 62/407,095, filed on Oct. 12, 2016, U.S. Provisional Patent Application No. 62/417,763, filed on Nov. 4, 2016, U.S. Provisional Patent Application No. 62/430,400, filed on Dec. 6, 2016, and U.S. Provisional Patent Application No. 62/477,228, filed on Mar. 27, 2017. U.S. patent application Ser. No. 15/730,465, U.S. Provisional Patent Application No. 62/407,095, U.S. Provisional Patent Application No. 62/417,763, U.S. Provisional Patent Application No. 62/430,400, U.S. Provisional Patent Application No. 62/477,228 are each incorporated herein by reference.The present disclosure relates ...

MECHANICAL DEVICE, WORKING VEHICLE, AND DETERIORATION STATE ESTIMATION SYSTEM AND DETERIORATION STATE ESTIMATION METHOD OF MACHINE COMPONENT

A mechanical device includes a housing, a transparent spacer member, a magnet, and an image capturing device. The housing has an internal space in which a machine component immersed in oil is housed. The spacer member is disposed in an opening of the housing. The magnet is supported by the spacer member. The image capturing device captures the internal space of the housing via the spacer member. 1. A mechanical device comprising:a housing that has an internal space in which a machine component immersed in oil is housed;a transparent spacer member disposed in an opening of the housing;a magnet supported by the spacer member; andan image capturing device that captures the internal space of the housing via the spacer member.2. The mechanical device according to claim 1 , comprising a cover member that supports the image capturing device at an outer side of the housing and the spacer member.3. The mechanical device according to claim 2 , comprising a reflecting mirror supported by the cover member claim 2 , whereinthe image capturing device captures the internal space via the reflecting mirror.4. The mechanical device according to claim 1 , comprising a gear disposed in the internal space claim 1 , whereinoil for lubricating or cooling the gear is housed in the internal space, andin a state where the gear is not operated, the opening is provided above a liquid level of the oil.5. The mechanical device according to claim 1 , whereinthe magnet is disposed in a visual field area of a lens system of the image capturing device.6. The mechanical device according to claim 1 , whereinthe machine component is a machine component of an axle device, andthe housing is an axle housing.7. The mechanical device according to claim 1 , comprising:a differential disposed in the internal space, and coupled to a drive shaft rotated by driving force generated by an engine; anda transmission shaft to which rotating force of the drive shaft is transmitted via the differential, whereinthe ...

Predictive Maintenance of Automotive Transmission

Systems, methods and apparatuses of predictive maintenance of automotive transmission of vehicles. For example, the transmission has at least one sensor to measure a temperature in transmission fluid, the torque applied on a shaft of the transmission, a vibration sensor, and/or a microphone. During a period in which the vehicle is assumed to be operating normally, the sensor data generated by the transmission sensor(s) is used to train an artificial neural network to recognize the normal patterns in the sensor data. Subsequently, the trained artificial neural network is used to determine whether the current sensor data from the transmission sensor(s) are abnormal. A maintenance alert can be generated for the vehicle in response to a determination that the operations of the transmission are abnormal according to the artificial neural network and the current sensor data. 1. A vehicle , comprising:an automotive transmission;at least one sensor configured on the automotive transmission to generate sensor data; one or more memory components configured to store the sensor data; and', 'an inference engine configured to determine whether operations of the automotive transmission are abnormal, using an artificial neural network, the sensor data, and the operating parameters;, 'a computer system configured to determine operating parameters of the vehicle, the computer system havingwherein the computer system is configured to generate a maintenance alert in response to a determination that the operations of the automotive transmission are abnormal according to the artificial neural network.2. The vehicle of claim 1 , wherein the artificial neural network includes a spiking neural network.3. The vehicle of claim 2 , wherein the computer system includes a data storage device having the inference engine and a host interface configured to receive the sensor data; and wherein the data storage device is further configured to generate training data and train the spiking neural ...

SPROCKET WHEEL FOR A BICYCLE DRIVE

An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages. 1. A single chain wheel for a bicycle front crank arrangement for engaging in a roller drive chain , comprising:a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth, wherein the teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth, the teeth of the first group of teeth comprise a portion of greater material thickness than the teeth of the second group of teeth in a direction transverse with respect to a circumferential direction of said chain wheel,wherein each tooth has a load flank, via which force is transmitted between an adjacent chain roller of the drive chain and the respective tooth, andwherein the teeth of the second group of teeth in the radial direction of the individual chain wheel are formed with a lower height than the teeth of the first group of teeth, wherein the teeth of the second group of teeth have a height in the range from about 85% up to 90% of the height of the teeth of the first group of teeth.2. The single chain wheel according to claim 1 , wherein each tooth of the first group of teeth and/or each tooth of the second group of teeth is provided with a tapered tooth crest.3. The single chain wheel according to claim 1 , wherein the ...

METHOD AND APPARATUS FOR COMBINING TORQUE AND ANGLE REPRESENTATION

An improved method and apparatus for creating a representation of transferred torque (τ) over a rotation angle interval (α) for a torque transferring system wherein the torque transferring system includes at least two meshing gears, a torque meter for monitoring the transferred torque (τ) in the torque transferring device, and an angular meter arranged to monitor an angular position (α) of at least one of the meshing gears over at least one angular interval (α). Further, the system includes a processor that is adapted to: map the transferred torque (τ) to the monitored angular interval (α) and create a representation of the transferred torque (τ) over said angular interval (α), analyze said representation in order to identify deviations from an expected representation, and based on said analysis determining a gear condition of at least one of the at least two meshing gears in the torque transferring device. 120-. (canceled)21. An apparatus for determining a gear condition of meshing gears in a torque transferring device , wherein the torque transferring device comprises: (i) at least two meshing gears , (ii) a torque meter for monitoring a transferred torque (τ) in the torque transferring device , and (iii) an angular meter arranged to monitor an angular position (α) of at least one of the meshing gears over at least one angular interval (α) , [{'sub': tr', 'tr', 'int, 'map the transferred torque (τ) to the monitored angular position (α) and create a representation of the transferred torque (τ) over an angular interval (α),'}, {'sub': tr', 'int', 'tr', 'int, 'combine at least two individual representations of the transferred torque (τ) over at least two monitored angular intervals (α), each individual representation including at least one transferred torque (τ) over at least one corresponding monitored angular interval (α);'}, 'create a combined representation from the combination of the at least two individual representations; and', 'analyze said combined ...

ENGINE WITH INBOARD CAM DRIVE TENSIONER

An overhead-cam internal combustion engine includes a crankshaft, a drive wheel rotatable by the crankshaft, a cylinder head, a driven wheel rotatable by the drive wheel, and a camshaft provided within the cylinder head, the camshaft being rotatable by the driven wheel. A flexible drive member extends around the drive wheel and the driven wheel such that power from the crankshaft for rotating the camshaft is transmitted through the flexible drive member. A pair of guide members are positioned to guide a path of the flexible drive member that increases an amount of peripheral wrap of the flexible drive member about the driven wheel. The guide members have co-facing inboard guide surfaces that partially define the path. A tensioner is positioned between the co-facing inboard guide surfaces, and the tensioner is operable to exert a pulling force that increases tension in the flexible drive member during operation. 1. An overhead-cam internal combustion engine comprising:a crankshaft;a drive wheel rotatable by the crankshaft;a cylinder head;a driven wheel rotatable by the drive wheel;a camshaft provided within the cylinder head, the camshaft being rotatable by the driven wheel;a flexible drive member extending around the drive wheel and the driven wheel such that power from the crankshaft for rotating the camshaft is transmitted through the flexible drive member;a pair of guide members positioned to guide a path of the flexible drive member that increases an amount of peripheral wrap of the flexible drive member about the driven wheel, wherein the pair of guide members have co-facing inboard guide surfaces that partially define the path; anda tensioner positioned between the co-facing inboard guide surfaces, the tensioner operable to exert a pulling force that increases tension in the flexible drive member during operation.2. The overhead-cam internal combustion engine of claim 1 , wherein one of the pair of guide members is fixed and the other of the pair of guide ...

TRANSMISSION MECHANISM WITH MONITORING FUNCTION

A transmission mechanism with monitoring function includes a shaft, a moving part, a circulating device, a plurality of rollers and a monitoring module. The shaft has a roller groove. The moving part is movably disposed on the shaft. The moving part has a roller slot corresponding to the roller groove. The roller slot has an effective thread section and an ineffective thread section. The effective thread section and the roller groove together form a load path. The circulating device is disposed on the moving part. The circulating device has a return channel communicated with the load path. The return channel and the load path together form a circulating path. The plurality of rollers are disposed in the circulating path. The monitoring module includes a gathering body and a sensor. The sensor is for detecting a metal content of the lubricant in the gathering channel. 1. A transmission mechanism with monitoring function , comprising:a shaft having a roller groove;a moving part movably disposed on the shaft, the moving part having a roller slot corresponding to the roller groove, the roller slot having an effective thread section and an ineffective thread section, the effective thread section of the roller slot and the roller groove together forming a load path;a circulating device disposed on the moving part, the circulating device having a return channel communicated with the load path, the return channel and the load path together forming a circulating path;a plurality of rollers disposed in the circulating path; and a gathering body disposed in the ineffective thread section of the roller slot, the gathering body having a gathering channel communicated with the roller groove; and', 'a sensor disposed on the gathering body, a sensing end of the sensor being disposed in the gathering channel;, 'a monitoring module, comprisingwherein the roller groove and the roller slot are covered with a lubricant to lubricate the plurality of rollers;wherein the sensor is for ...

HIGH-SPEED TRAIN GEARBOX SENSING DEVICE

The present application provides a high-speed train gearbox sensing device, comprising: a housing, disposed on the high-speed train gearbox; a piezoelectric sensor, fixedly disposed in the housing, and with vibration of the high-speed gearbox, converting mechanical energy generated by the vibration into electric energy using piezoelectric effect, and transmitting a signal to a central control system; a shielding case, disposed outside the piezoelectric sensor for shielding electromagnetic interference from the piezoelectric sensor. The above sensing device is installed to the high-speed train gearbox, for collecting vibration information using the piezoelectric sensor, so as to enable monitoring of gearbox vibration. In order to ensure the normal operation of the sensor, the design with high-pressure resistance and anti-electromagnetic interference in structure is adopted to prolong the service life of the sensor, so as to achieve the purpose of real-time online monitoring whether the gearbox is in a good state. 1. A high-speed train gearbox sensing device , comprising:a housing, disposed on the high-speed train gearbox;a piezoelectric sensor, fixedly disposed in the housing, and with vibration of the high-speed gearbox, converting mechanical energy generated by the vibration into electric energy using piezoelectric effect, and transmitting a signal to a central control system;a shielding case, disposed outside the piezoelectric sensor for shielding electromagnetic interference from the piezoelectric sensor.2. The high-speed train gearbox sensing device according to claim 1 , further comprising a circuit board disposed in the shielding case; the circuit board is connected with the piezoelectric sensor for processing signals of the piezoelectric sensor; the shielding case comprises an upper layer for shielding electromagnetic interference of the housing from the circuit board and a lower layer for protecting and supporting the circuit board.3. The high-speed train ...

DIFFERENTIAL CARRIER TEMPERATURE SENSING METHOD

A method of sensing an internal temperature of a differential carrier includes providing a differential carrier temperature sensing package with an electronic circuit board having a first temperature sensor that is in thermally conductive contact with a thermal conductor, where the thermal resistance of the package and thermal conductor is given and known as R. The package is extended through an opening in a differential carrier that has a fluid in it. The first temperature sensor senses a differential fluid temperature T. The electronic circuit board further has a second temperature sensor, whereby the thermal resistance of the circuit board is a given known resistance R. The second temperature sensor senses an internal package temperature Twithin the package. Consequently, an internal temperature of the differential is calculated from the equation: 1. A method of determining an internal differential carrier temperature T , comprising:{'sub': 'SNS', 'measuring a differential carrier fluid temperature T;'}{'sub': 'PCB', 'measuring an internal package housing temperature T;'}{'sub': 'ENC', 'utilizing a known housing plus thermal conductor thermal resistance R; and'}{'sub': 'PCB', 'claim-text': {'br': None, 'i': T', '=T', 'R', '/R', 'T', 'R', '/R, 'sub': INT', 'SNS', 'ENC', 'PCB', 'PCB', 'ENC', 'PCB, '(1+)−().'}, 'utilizing a known thermal conductor resistance of the housing at the electronic circuit board R, thereby calculating an internal differential carrier temperature by way of the equation2. The method of determining an internal differential carrier temperature of claim 1 , further comprising utilizing a known series dynamic thermal capacitance Cand dynamic thermal resistance Rof the package housing at the electronic circuit board in parallel with the base Rin calculating the internal differential carrier temperature T.3. The method of determining an internal differential carrier temperature of claim 1 , wherein thermal energy is conducted from Tto Twhen the ...

CONDITION MONITORING METHOD

A method for monitoring a condition of a mechanical system having an oil lubricated component. The method includes: (a) identifying a start of a load cycle, (b) measuring a load of the oil lubricated component, (c) measuring a temperature of a lubricating oil for the oil lubricated component, (d) calculating a first system performance parameter value for a load cycle, (e) repeating steps (a) to (d) for a plurality of load cycles, and (f) comparing a plurality of first system performance parameter values calculated to identify a change in the first system performance parameter values over the plurality of load cycles. The first system performance parameter value for the load cycle is selected from a friction coefficient for the oil lubricated component, a temperature increase coefficient for the lubricating oil for the oil lubricated component, and a temperature rise rate coefficient for the lubricating oil for the oil lubricated component. 127-. (canceled)28: A method for monitoring a condition of a mechanical system comprising a first oil lubricated component , the mechanical system being subject to repeated , intermittent load cycles , the method comprising:(a) identifying a start of a load cycle;(b) measuring a load of the first oil lubricated component;(c) measuring a temperature of a lubricating oil for the first oil lubricated component; (i) a friction coefficient for the first oil lubricated component,', '(ii) a temperature increase coefficient for the lubricating oil for the first oil lubricated component, and', '(iii) a temperature rise rate coefficient for the lubricating oil for the first oil lubricated component;, '(d) calculating a first system performance parameter value for the load cycle selected from,'}(e) repeating steps (a) to (d) for a plurality of load cycles; and(f) comparing a plurality of first system performance parameter values calculated to identify a change in the first system performance parameter over the plurality of load cycles.29: ...

Actuator Assembly

An actuator assembly may comprise a screw shaft having a shaft axis; a drive arrangement pivotally supported about the screw shaft axis for driving the screw shaft, e.g., about the shaft axis or along the shaft axis, and a rod mounted to the drive arrangement at a location off the shaft axis for providing a primary function of reacting torque about the shaft axis on the drive arrangement. The rod may comprise a rod axis and provide a load path along the rod axis for reacting torque. The rod may also comprise a device for which provides a secondary function for the actuator assembly based on the load experienced along the load path provided by the rod. 1. A method of reacting torque on an actuator assembly , wherein the actuator assembly comprises a screw shaft having a shaft axis , a drive arrangement pivotally supported about the screw shaft axis for driving the screw shaft , and a rod for connection to a frame , wherein one end of the rod is connected to the drive arrangement at a location off the shaft axis , the rod having a rod axis along which load is experienced resulting from torque on the drive arrangement; the method comprising:using the rod to provide a load path which can react torque on the drive arrangement as a primary function of the rod; andusing the rod load path to operate a device which is part of the rod in order to provide a secondary function for the actuator assembly based on the load experienced along the rod load path.2. The method of reacting torque as claimed in claim 1 , wherein the device provides a secondary function of reducing angular impulses on the actuating assembly.3. The method of reacting torque as claimed in claim 1 , wherein the device comprises portions that move with respect to each other against a bias.4. The method of reacting torque as claimed in claim 1 , wherein the method comprises providing a rod with a device comprising a load limiter.5. The method of reacting torque as claimed in claim 1 , wherein the method of ...

CONTROLLED- OR ZERO-BACKLASH GEAR REDUCER

A controlled or zero backlash gearmotor comprises a main gearmotor, a secondary service gearmotor, an electronic control unit and transmission and synchronization gears. The backslash control results from the cooperation between the main gearmotor, the secondary service gearmotor, and the electronic control unit which adjusts, based on parameters detected by a series of sensors, the load provided by the service gearmotor on one of two irreversible screws pressing on two worm screws, respectively, arranged at the side of a worm wheel. This latter supports a secondary shaft and is get into gear with both the worm screws, the two worm screws being synchronized by means of gears connecting them to each other so that a reversible motion transmission is executable. 111-. (canceled)12. A gear and motor system for controlling backlash , said system comprising:a first worm screw axially moveable by rotation of a first screw, and a second worm screw axially moveable by rotation of a second screw, said first and second worm screws being rotationally synchronized by way of one or more synchronization gears connecting them to each other so that a reversible motion transmission is executable, wherein at least one of said synchronization gears being operably associated with a main motor;a secondary motor operably associated with said first screw or said second screw;a worm wheel including an output shaft, said worm wheel being operably engageable with said first worm screw and said second worm screw; andan electronic control unit configured to control backslash resulting from cooperation between said main motor, said secondary motor and said electronic control unit, said electronic control unit being configured to control at least said secondary motor by adjusting a load provided by said secondary motor on said first screw or said second screw, based on parameters detected by one or more sensors.13. The gear and motor system according to claim 12 , wherein said first screw and ...

WEARING MONITORING DEVICE FOR MOTION GUIDE DEVICE

A motion guide device includes a movable member attached onto an elongated member for forming a ball guiding passage and for receiving ball bearing members between the elongated member and the movable member, a detecting device includes a magnetic member and an insulated tube engaged into a hole of the movable member, and a warning device is coupled between the movable member and the magnetic member for generating a warning signal when the movable member and the magnetic member are electrically connected together with worn particles and for allowing the user to examine and to repair the motion guide device or the ball screw device when required. 1. A motion guide device comprising:an elongated member including a groove formed on an outer peripheral surface thereof,a movable member including a bore formed therein for receiving said elongated member and for movably attaching onto said elongated member, and said movable member including a groove formed therein and aligned with said groove of said elongated member for forming a ball guiding passage between said elongated member and said movable member, and said movable member including a hole formed therein,a plurality of ball bearing members disposed in said ball guiding passage that is formed between said elongated member and said movable member for facilitating a sliding movement between said elongated member and said movable member,a detecting device including a magnetic member engaged into said hole of said movable member, and an insulated tube engaged into said hole of said movable member and engaged between said movable member and said magnetic member for spacing said movable member and said magnetic member from each other, anda warning device coupled between said movable member and said magnetic member for selectively generating a warning signal when said movable member and said magnetic member are selectively and electrically connected together with worn particles.2. The motion guide device as claimed in claim ...

Method of evaluating the health status of belt drive in electric power steering system

A method of evaluating the health status of belt drive in electric power steering system by detecting the occurrence of sliding teeth in the electric power steering system and the frequency of occurrence and the output of the motor. In this way, the user really knows the belt drive health of the electric power steering system.

OIL MONITORING SYSTEM OF IN WHEEL TYPE RUNNING GEAR AND METHOD THEREOF

The present disclosure periodically monitors an oil condition through a temperature sensor installed in a driving motor of an in-wheel-type running gear, the generated torque of the driving motor, or the like and transmits oil condition information to a driver through a vehicle warning light. 1. An oil monitoring system of an in-wheel-type running gear that manages safety of a vehicle by identifying oil deterioration in the in-wheel-type running gear , the system comprising:a temperature sensor mounted on an in-wheel motor of the in-wheel-type running gear and configured to measure a temperature of the in-wheel motor;a torque sensor configured to measure a torque generated by the in-wheel motor; anda vehicle controller configured to:estimate a temperature of oil in the in-wheel-type running gear through the temperature of the in-wheel motor or estimate a condition of the oil by using a wear amount of a gear through torque generation of the in-wheel motor; andtransmit warning information about the oil to a display when a calculated deterioration degree of the oil is not less than a predetermined reference value.2. The system of claim 1 , further comprising:a distance measurement sensor configured to measure a driving distance of the vehicle,wherein the vehicle controller is configured to:deliver the warning information about the oil to the display when the deterioration degree of the oil calculated through a driving distance of the vehicle is not less than the predetermined reference value.3. The system of claim 1 , wherein the vehicle controller is configured to:determine that the vehicle is driving in a maximum output section, when the torque generated by the in-wheel motor is not less than 50% of a maximum torque; anddetermine that the vehicle is driving in a continuous output section, when the torque generated by the in-wheel motor is less than 50% of the maximum torque.4. The system of claim 1 , wherein the vehicle controller is configured to:determine that the ...

Control device of automatic transmission

A control device of an automatic transmission controls an automatic transmission 1 comprising a transmission mechanism 3 including a plurality of engagement elements, and a hydraulic oil supply device 4 supplying hydraulic oil to the transmission mechanism The control device of the automatic transmission comprises an engagement element control part 41 configured to use the hydraulic oil supply device to make the plurality of engagement elements change between an engaged state and a disengaged state; and a deceleration degree calculating part 42 configured to calculate a target deceleration degree of a vehicle in which the automatic transmission is provided. The engagement element control part is configured to make the engagement element in the disengaged state engage so that the vehicle decelerates if the target deceleration degree is equal to or more than a predetermined value when an increase in temperature of hydraulic oil in the automatic transmission is demanded.

ESTIMATION DEVICE AND ESTIMATION METHOD

An estimation device includes mixed amount acquisition part configured to acquire a foreign matter mixed amount in a fluid that lubricates meshing elements G to G, a fatigue damage degree estimation unit configured to estimate fatigue damage degrees received by the meshing elements G to G per unit traveling of a vehicle based on the acquired foreign matter mixed amount, and a cumulative fatigue damage degree estimation unit configured to estimate cumulative fatigue damage degrees of the meshing elements G to G based on the estimated fatigue damage degrees and at least one of a traveling distance and traveling time of the vehicle. 1. An estimation device comprising:mixed amount acquisition means for acquiring a foreign matter mixed amount in a fluid that lubricates a meshing element;fatigue damage degree estimation means for estimating a fatigue damage degree received by the meshing element per unit traveling of a vehicle based on the acquired foreign matter mixed amount; andcumulative fatigue damage degree estimation means for estimating a cumulative fatigue damage degree of the meshing element based on the estimated fatigue damage degree and at least one of a traveling distance and traveling time of the vehicle.2. The estimation device according to claim 1 , further comprising:warning means for notifying that the estimated cumulative fatigue damage degree has reached a predetermined threshold indicating a possibility of breakage of the meshing element when the estimated cumulative fatigue damage degree has reached the predetermined threshold indicating the possibility of breakage of the meshing element.3. The estimation device according to claim 1 , collection means including a collection member that is provided in a flow path in which a fluid flows and is configured to collect foreign matter in the fluid by passing the fluid through at least a part thereof, the collection means being moved in a fluid flowing direction with accumulation of the foreign matter in the ...

METHOD AND APPARATUS FOR IDENTIFYING GEAR TOOTH NUMBERS IN A GEARBOX

The subject of the invention is a method and an apparatus for identifying the most likely tooth numbers lot all of the gems in a gearbox, on the basis of measured dynamic signals and the total ratio of the gearbox. A method uses a data obtained from a vibration measuring device delivered to a data acquisition device and a data delivered by a user to a computer device. The method has the step of processing data delivered by a user to the computer device, a step of calculating frequencies of characteristic features for each potential tooth combination for the first embodiment of the invention or of calculating frequencies of characteristic features for each potential tooth combination and a potential speed combination for the second embodiment of the invention a step of measuring the vibration signals and an angular displacement signal of the gearbox or only measuring the vibration signals, relative to the embodiments of the invention, a step of calculating a frequency spectrum from the measured data, a step of determining an amplitude of components of the frequency spectrum, a step of determining the tooth numbers in the gearbox by identifying which potential gear tooth combination maximizes the amplitudes of the components of the frequency spec:man at frequencies of characteristic features or of determining the tooth numbers and an improved speed estimate by identifying which potential gear tooth and a potential speed combination maximizes the amplitudes of the components of the frequency spectrum at frequencies of characteristic feature and a step of presenting the tooth numbers in the gearbox in a computer device or presenting the tooth numbers in the gearbox and an improved speed estimate. 1. A method for identifying gear tooth numbers in a gearbox using a data obtained from a vibration measuring device delivered to a data acquisition device and a data delivered by a user to a computer device , wherein the method comprises:processing data delivered by a user to ...

ONE WAY CLUTCH OPERATION MONITORING IN TORQUE CONVERTER

A control system for monitoring a torque converter in a machine is disclosed. The control system includes a first speed sensor associated with a driving shaft of the torque converter. The first sensor is configured to measure an input speed of the torque converter. The control system further includes a second speed sensor associated with an output shaft of the torque converter. The second sensor is configured to measure an output speed of the torque converter. The control system further includes a processing module adapted to calculate a speed ratio based on the signals received from the first speed sensor and the second speed sensor. The control system further includes an output module adapted to provide indication for a seized condition of a one way clutch in the torque converter based on the speed ratio. 1. A control system for monitoring a torque converter in a machine , the control system comprising:a first speed sensor associated with a driving shaft of the torque converter, the first sensor configured to measure an input speed of the torque converter;a second speed sensor associated with an output shaft of the torque converter, the second sensor configured to measure an output speed of the torque converter;a processing module adapted to calculate a speed ratio based on the signals received from the first speed sensor and the second speed sensor; andan output module adapted to provide indication for a seized condition of a one way clutch in the torque converter based on the speed ratio.2. The control system of is adapted to provide a negative check indicative of the seized condition of the one way clutch in the torque converter in case the speed ratio is greater than an upper limit speed ratio.3. The control system of claim 2 , wherein the upper limit speed ratio is about 1.02.4. The control system of is adapted to provide a positive check indicative of a freewheel condition of the one way clutch in the torque converter in case the speed ratio is below a lower ...

BELT TENSION CALCULATING PROGRAM, BELT NATURAL FREQUENCY CALCULATING PROGRAM, METHOD AND DEVICE FOR CALCULATING BELT TENSION, AND METHOD AND DEVICE FOR CALCULATING BELT NATURAL FREQUENCY

A more accurate tension of a belt or a more accurate target natural frequency of the belt when the belt tension is adjusted is determined. A method for calculating a belt tension includes receiving a natural frequency of a belt and a span; performing calculation for determining a tension of the belt using a predetermined expression, based on the natural frequency, the span, and a unit mass of the belt read from a memory; and displaying the tension on a display, wherein in a case where the span is within a predetermined range corresponding to the belt, the predetermined expression is corrected so that an error caused by a bending stiffness of the belt is reduced. 1. A non-transitory computer-readable storage medium containing instructions which , when executed by one or more processors , performs a method for calculating a belt tension , the method comprising:receiving a natural frequency of a belt and a span;performing calculation for determining a tension of the belt using a predetermined expression, based on the natural frequency, the span, and a unit mass of the belt read from a memory; anddisplaying the tension on a display, whereinin a case where the span is within a predetermined range corresponding to the belt, the predetermined expression is corrected so that an error caused by a bending stiffness of the belt is reduced.2. The non-transitory computer-readable storage medium of claim 1 , whereinthe correction is performed by multiplying a correction expression corresponding to the belt.3. The non-transitory computer-readable storage medium of claim 2 , whereinthe correction expression is a linear expression of the span.4. The non-transitory computer-readable storage medium of claim 1 , whereinthe natural frequency for use in the calculation for determining the tension is corrected so that an influence of mass of a sensor attached to the belt to measure the natural frequency is reduced.5. The non-transitory computer-readable storage medium of claim 1 , wherein ...

INSTRUMENTED SHAFT FOR CONDITION MONITORING

A flanged shaft having a shaft part including a bearing seat for mounting an inner ring of a bearing arrangement and a flange part at a first side of the shaft. The flange part has an axially inner surface for axially retaining the inner ring. The flanged shaft is instrumented with one or more sensor units. Each unit having a measuring surface formed by an axially inner surface of at least one contact plate on which one or more sensors are provided for monitoring one or more operating parameters of the bearing arrangement. According to the invention, each of the one or more sensor units is arranged in a corresponding recess that extends through the flange part such that the measuring surface lies flush with or protrudes somewhat beyond the axially inner surface of the flange part. 1. A flanged shaft comprising:{'b': '112', 'a shaft part having a bearing seat for mounting an inner ring of a bearing arrangement and an integrally formed flange part () at a first side of the shaft. the flange part has an axially inner surface for axially retaining the inner ring, wherein'}the flanged shaft is instrumented with one or more sensor units, each unit having a measuring surface formed by an axially inner surface of at least one contact plate on which one or more sensors are provided for monitoring one or more operating parameters of the bearing arrangement, and whereineach of the one or more sensor units is arranged in a corresponding recess that extends through the flange part such that the measuring surface lies flush with or protrudes somewhat beyond the axially inner surface of the flange part.2. The flanged shaft of claim 1 , further comprising a cavity provided in an axially outer surface of the flanged shaft claim 1 , at the first side thereof claim 1 , wherein one or more batteries are arranged in the cavity and are electrically connected to each sensor unit.3. The flanged shaft of claim 1 , wherein at least one of the sensor units is arranged in a slot provided at an ...

METHOD AND SYSTEM FOR EVALUATING AND PREDICTING SPROCKET TOOTH WEAR

An exemplary method may comprise: ascertaining an original distance between a first tooth face and a second tooth face of a sprocket tooth, wherein the sprocket tooth comprises two tooth faces extending from a sprocket core and terminating in a top of the sprocket tooth, wherein an original distance separates the two tooth faces, placing a sprocket gauge on the sprocket tooth, wherein the sprocket gauge comprises: a bottom, and two gauge faces extending from the bottom of the sprocket gauge, wherein the bottom of the sprocket gauge is disposed upon the top of the sprocket tooth and the first gauge face is disposed adjacently on the first tooth; and comparing the original distance defined by the sprocket gauge with an actual distance between the first tooth face and the second tooth face. 1. A method for determining sprocket tooth wear comprising:ascertaining an original distance between a first tooth face and a second tooth face of a sprocket tooth; the first tooth face extending from a sprocket core and terminating in a top of the sprocket tooth,', 'the second tooth face extending from a sprocket core and terminating in the top of the sprocket tooth, wherein the first tooth face is distally disposed from the second tooth face, wherein the original distance separates the first tooth face from the second tooth face, and wherein the original width separates a first gauge side from a second gauge side distally disposed from the first gauge side;, 'wherein the sprocket tooth comprises, 'ascertaining an original width between a first base side and a second base side of the sprocket tooth,'} [ a bottom,', 'a first gauge face extending from the bottom of the sprocket gauge, and', 'a second gauge face extending from the bottom of the sprocket gauge distally disposed from the first gauge face, and wherein the original distance between the first tooth face and the second tooth face separates the first gauge face from the second gauge face,, 'wherein the sprocket gauge ...

METHOD AND DEVICE FOR SEARCHING FOR A DEFECT CAPABLE OF AFFECTING A ROTATING MECHANICAL POWER TRANSMISSION DEVICE

A method of searching for a defect capable of affecting a rotating mechanical power transmission device includes a step of obtaining a signal s that can be modeled by a product of a high frequency signal s1 and a low frequency signal s2, generated by the rotating mechanical power transmission device and acquired by a sensor, a step of determining estimates of the signals s1 and s2, minimizing a difference between all or part of the signal s and a product of these estimates, a step of analyzing the estimates of the signals s1 and s2 in order to detect the presence of a defect affecting the rotating power transmission mechanical device, and, if a defect is detected, a step of locating said defect from at least one of the estimates of the signals s1 and s2. 1. A method for searching for a defect likely to affect a rotating mechanical power transmission device , said mechanical device being an aircraft gear comprising two toothed wheels , the method comprising:{'b': 1', '2, 'a step of obtaining a signal s which can be modeled by a product of a high-frequency signal s and of a low-frequency signal s, generated by the rotating mechanical power transmission device and acquired by a sensor;'}{'b': 1', '2, 'claim-text': [{'b': '2', 'a step of re-sampling a sequence derived from the signal s of a duration equal to an analysis duration, said analysis duration being a integer multiple of a period of the low-frequency signal s, said sequence derived from the signal s being re-sampled with a regular pitch equal to a fraction of the analysis duration;'}, 'a step of obtaining a discrete Fourier transform of the re-sampled sequence, said discrete Fourier transform comprising a plurality of harmonics;', {'b': 1', '2, 'a step of constructing a matrix M(S) from the discrete Fourier transform obtained, the dimensions of the matrix depending on a number of harmonics determined for the signal s and on a number d harmonics determined for the signal s, each component of the matrix ...

SCREW DEVICE

A screw device is provided which can detect damage to a groove of a screw shaft, the damage being hidden by a nut, with a high probability. At least two circulation components are mounted on a nut in such a manner as to form at least two circulation circuits that circulate rolling elements. The nut is provided with a sensor that detects a displacement of a groove of a screw shaft between the adjacent circulation circuits. 1. A screw device comprising:a screw shaft including a groove;a nut including a groove facing the groove of the screw shaft;at least two circulation components mounted on the nut in such a manner as to form at least two circulation circuits;a plurality of rolling elements housed in the at least two circulation circuits; anda sensor provided to the nut, the sensor being configured to detect a displacement of the groove of the screw shaft between the adjacent circulation circuits.2. The screw device according to claim 1 , wherein the sensor is placed between the adjacent circulation circuits of the nut.3. The screw device according to claim 1 , wherein the sensor is sandwiched between a first holder mounted on an inner surface of the nut and a second holder mounted on the inner surface of the nut to be mounted on the nut.4. The screw device according to claim 1 , wherein at least one of the circulation components is provided with a holding portion that holds the sensor.5. The screw device according to claim 1 , wherein the sensor is an eddy current displacement sensor.6. The screw device according to claim 2 , wherein the sensor is sandwiched between a first holder mounted on an inner surface of the nut and a second holder mounted on the inner surface of the nut to be mounted on the nut.7. The screw device according to claim 2 , wherein at least one of the circulation components is provided with a holding portion that holds the sensor.8. The screw device according to claim 2 , wherein the sensor is an eddy current displacement sensor.9. The screw ...

BELT FOR TRANSMITTING A DRIVE MOTION, DEVICE FOR DRIVING A BELT AND METHOD FOR STARTING A BELT

The invention relates to a belt for transmitting a drive motion, comprising a belt body consisting of an elastic material and a carcass that extends in the longitudinal direction of the belt and that is at least partially surrounded by the belt body for increasing the strength of said belt body in the longitudinal direction of the belt. A data memory for saving data is situated in the belt body and at least one piece of information that identifies the belt is stored in the data memory. The drive motion can be enabled and/or disabled in accordance with the information that identifies the belt. 1. A belt for transmitting a drive motion , comprisinga belt body of an elastic material including areas of local material accumulation vulcanized or injection molded to form a belt tooth or a belt rib, and{'b': '1', 'a carcass that extends in the longitudinal direction of the belt and that is at least partially surrounded by the belt body for increasing the strength of said belt body in the longitudinal direction of the belt, the carcass consisting of a plurality of individual cords or fibers (F), said cords or fibers not subjected to tension or pressure when the belt () is bent around a bending axis (B) extending cross to the belt longitudinal axis (R),'}{'b': '1', 'wherein the belt body is adapted for bending around a bending axis (B) extending cross to the belt longitudinal axis (R) and is subject to bending load in areas other than the carcass when the belt () is bent around a bending axis (B) extending cross to the belt longitudinal axis (R),'}{'b': '9', 'wherein a data memory () for saving data identifying the belt is situated in the belt body,'}{'b': '9', 'wherein the data stored in the data memory () are readable by electronic readout and comprise at least one piece of information that identifies the belt and wherein the drive motion can be disabled and/or enabled in accordance with the stored information that identifies the belt, and'}{'b': 9', '2', '2', '9', '2', '3 ...

Sensor Packaging at Output Side of Front Wheel Drive (FWD) Transmissions

Various packaging designs for placement of a magnetic torque sensor at the output shaft of a front wheel drive transmission are provided. One design provides for mounting a sensor on a chain drive sprocket or integrating a sensor into a modified sprocket bearing mount. Another design provides for mounting a sensor at the grounded ring gear of a final planetary drive. Another design provides for mounting a sensor at the differential housing. Another design provides for mounting a sensor at the output planetary carrier hub/park gear. Another design provides for mounting a sensor at a multi-piece transfer gear face. 1. A transmission comprising:a chain drive sprocket for driving an output shaft, the chain drive sprocket having a magnetized region;a pump housing; anda magnetic torque sensor, for detecting torque of the chain drive sprocket, mounted to a portion of the pump housing facing the magnetized region.2. The transmission of further comprising:a stator assembly;wherein the pump housing and the stator assembly are interconnected.3. The transmission of wherein:the pump housing and the stator assembly are interconnected by bolts.4. The transmission of wherein:the stator assembly includes a stator support and a stator tube which press-fit together to form the stator assembly.5. The transmission of wherein:wiring of the sensor is embedded through the pump housing.6. A transmission comprising:a chain driven sprocket for driving an output shaft, the chain driven sprocket having a sprocket hub with a magnetized region;a sprocket bearing support; anda magnetic torque sensor, for detecting torque of the sprocket hub, mounted to a portion of the sprocket bearing support facing the magnetized region.7. The transmission of further comprising:a chain drive for driving the chain driven sprocket.8. The transmission of wherein:the magnetized region is on one side of the sprocket hub.9. The transmission of wherein:wiring of the sensor extends out from under a bearing between the ...

DIAGNOSTIC SYSTEMS AND METHODS OF A CONTINUOUSLY VARIABLE TRANSMISSION

A diagnostic system of a vehicle for diagnosing a drive belt of a continuously variable transmission. A diagnostic circuit detects or predicts a fault of the drive belt based on an operating parameter received from a sensor associated with the vehicle during a predetermined diagnostic period. 1. A vehicle diagnostic method of a vehicle including an internal combustion engine and a continuously variable transmission (CVT) operatively coupled to the internal combustion engine , the method comprising the steps of:determining an amount of input energy provided to the CVT by the internal combustion engine;determining an amount of output thermal energy leaving the CVT;determining based on the amount of input energy and the amount of output thermal energy an amount of accumulated energy in the CVT;comparing the amount of accumulated energy to a threshold; andaltering the amount of input energy in response to the amount of accumulated energy satisfying the threshold.2. The diagnostic method of claim 1 , wherein the step of altering the amount of input energy includes the step of altering at least one of power and torque provided by the internal combustion engine to the CVT.3. The diagnostic method of claim 1 , wherein the amount of input energy is determined based on mechanical input characteristics to the CVT.4. The diagnostic method of claim 1 , wherein the amount of output thermal energy is determined based on fluid characteristics of the CVT.5. The diagnostic method of claim 1 , wherein the step of determining the amount of input energy provided to the CVT by the internal combustion engine includes the steps of:determining an output power of the internal combustion engine;determining a CVT clutch efficiency based on the determined output power; anddetermining the amount of input energy provided to the CVT based on the determined output power and the determined CVT clutch efficiency.6. The diagnostic method of claim 5 , wherein the step of determining the CVT clutch ...

METHOD AND APPARATUS FOR IMAGING ANALYSIS OF A SWITCHGEAR OR THE LIKE

A method is disclosed for inspecting electrical components within a housing. The method may be useful for identifying dust, grime, corrosion, tree-like structures, edges and/or slots on electrical components. The method includes capturing two optical images of an electrical component and comparing the images. Variations in pixels between the two images may be used to generate warnings. 1. A method of inspecting electrical components within a housing , comprising:positioning a first camera within the housing,capturing a first optical image of an electrical component within the housing with the first camera;recording the first optical image;positioning a second camera within the housing;capturing a second optical image of the electrical component with the second camera;comparing pixels of the first and second optical images with an electronic control module; andgenerating a warning based upon a variation between the pixels of the first optical image and the pixels of the second optical image.2. The method of claim 1 , wherein the first and second cameras are the same camera.3. The method of claim 1 , wherein the variation is a color variation between the pixels of the first optical image and the pixels of the second optical image.4. The method of claim 1 , wherein the first optical image is a baseline captured at a new claim 1 , cleaned or reconditioned state of the electrical component.5. The method of claim 1 , wherein the second optical image is captured more than one week after the first optical image.6. The method of claim 1 , wherein the electrical component or a portion thereof is identified from the first optical image by the electronic control module as a continuous area of the pixels having a same color or shade.7. The method of claim 1 , wherein the comparison identifies dust claim 1 , grime and/or corrosion in the second optical image by identifying a percentage change in the pixels of the first optical image and the pixels of the second optical image.8. ...

DRIVE DEVICE

A wave motion gearing speed reducer () is disposed between a driving motor () and a control shaft () of a variable compression ratio mechanism. There are provided a input shaft rotation sensing sensor () to sense the rotational position of an input shaft () of the speed reducer (), and an output shaft rotation sensing sensor () to sense the rotational position of an output shaft () of the speed reducer (). When a discrepancy quantity (Δε) between sensed quantities of both sensors is greater than or equal to a predetermined value, a judgment is made that a ratcheting of slippage of an engaging position between internal teeth () and external teeth () is generated. 1. A drive apparatus comprising:a driving section;a driven section driven by the driving section; anda speed reducer disposed between the driving section and the driven section and arranged to transmit rotation at a reduced speed from an input shaft connected with the driving section to an output shaft connected with the driven section;the speed reducer being a wave motion gearing speed reducer including,a rigid gear including an inside circumference formed with internal teeth,a wave generator disposed coaxially in the rigid gear, anda flexible gear which is disposed coaxially between the wave generator and the rigid gear, which is arranged to be deflected elastically into an elliptical shape by the wave generator, and which includes an outside circumference formed with external teeth engaging with the internal teeth at two positions in a direction of a major axis of the elliptical shape, the flexible gear and the rigid gear being arranged to rotate relative to each other by an amount corresponding to a teeth number difference which is a difference of numbers of the internal teeth and the external teeth when the wave generator is rotated one revolution,the drive apparatus further comprising,an input shaft rotation sensing section to sense a rotational position of the input shaft of the speed reducer,an ...

SYSTEM AND METHOD FOR EXTENDING THE OPERATING LIFE OF A WIND TURBINE GEAR TRAIN BASED ON ENERGY STORAGE

A wind park controller and control method for a wind park () are described. The wind park comprises a plurality of wind turbines () and an Energy Storage System () connected to one another by means of a low voltage power network (), which is in turn coupled to the grid. The controller determines a number of operating parameters of the wind turbine gearbox or drive train, and calculates a gearbox or drive train health metric. This can include a measure of the gearbox lifetime. The controller also determines one or more power characteristics of the wind turbine generator or the point of common coupling () to determine a power mismatch indication. Based on the power mismatch indication and said gearbox or drive train health metric, the controller determines a power command for the Energy Storage System and wind turbines based to improve the gearbox health and lifetime. 1. A wind park control system for a wind park comprising a plurality of wind turbines and an Energy Storage System connected to one another by means of a low voltage power network , wherein the low voltage power network is coupled to the grid and wherein the plurality of wind turbines each respectively comprise a drive train and gear box connected between a rotor of the wind turbine and a generator of the wind turbine ,the wind park control system comprising:one or more environmental sensors located in at least a first wind turbine, arranged to determine one or more operating parameters of the wind turbine drive train or gear box,one or more power sensors located in at least the first wind turbine or on the low voltage power network arranged to determine a power mismatch indication between the generator rotor angle and the low voltage power network and output the power mismatch indication to the wind park controller;a controller adapted to receive said one or more determined operating parameters and said power mismatch indication, to determine a gearbox or drive train health metric based on said one or ...

TORQUE ESTIMATION FOR WORK MACHINE POWER TRAIN

A work machine having a diesel engine driving a plurality of ground movement devices to tow an agricultural implement. A torque estimating system is employed to determine the level of torque in the drive train between the diesel engine and the ground movement devices. The torque estimation device is a sensor determining the axial and radial deflection of an input shaft as a function of the torque transmitted between a pair of adjacent gears in the power train. 1. A power train component comprising:an input shaft;driving gear fixed to said input shaft;a driven gear meshing with said driving gear;at least one bearing assembly for supporting said input shaft;a housing for mounting said bearing assembly; and,a sensor for detecting deflection of one of said driving and driven gears reacting to the level of torque transmitted between said driving and driven gears.2. The power train component as claimed in wherein said sensor detects displacement of said input shaft adjacent said bearing assembly in response to bearing deflections reacting to the level of torque transmitted between said driving and driven gears.3. The power train component as claimed in claim 2 , wherein said driving gear is a pinion gear.4. The power train component as claimed in claim 2 , wherein said sensor is angled with respect to the rotational axis of said input shaft so as to provide access around said bearing assembly.5. The power train component as claimed in claim 4 , further comprising a ring telescoped over said input shaft and adjacent said bearing assembly claim 4 , said ring having a conical face cooperating with the angled sensor to detect both axial and radial displacement.6. The power train component as claimed in claim 2 , wherein said sensor is an eddy-current sensor.7. The power train component as claimed in claim 2 , further comprising an electronic control unit (ECU).8. The power train component as claimed in claim 7 , further comprising a sensor for detecting temperature of said ...

Additive manufactured component that indicates wear and system and method thereof

A three-dimensional printed metal component for a lubricated system is provided. The metal component includes a three-dimensional printed metal body formed of a plurality of metal layers of a first metal and having a contact surface configured to movingly contact another component of the lubricated system. The metal component further includes at least one first three-dimensional printed wear-identifying layer of a material different from the first metal embedded in the metal body at a predetermined depth, a predetermined distance from an outer surface portion of the contact surface. The predetermined distance defines a predetermined wear state of the contact surface associated with replacement of the metal component.

Failure detection system

A failure detection system (FDS) for a gearbox has a power source disposed within the gearbox, a camera element disposed within the gearbox, a processor disposed within the gearbox.

WORM GEAR MECHANISM

The invention is directed to a worm gear mechanism comprising a worm shaft with a worm thread formed or worked, in particular cut, directly into the shaft main body, and also comprising a worm wheel that meshes with said worm thread, which worm wheel is of annular form and is integrated with an annular connection element of an open-center large-diameter rolling bearing, the two annular, mutually concentric connection elements of which are supported against one another in rotatable fashion and serve for connection to two machine or installation parts that are rotatable relative to one another, wherein the toothed worm wheel connection element is formed from an annular main body with a toothing formed or worked directly therein, having at least one connection surface for abutment against a planar contact surface of the respective machine or installation part, and having multiple fastening bores arranged so as to be distributed in a ring around the clear opening, the longitudinal axes of which bores extend perpendicularly through the respective connection surface; and wherein the non-toothed connection element is formed from an annular main body with at least one planar connection surface for abutment against a planar contact surface of the respective machine or installation part, and having multiple fastening bores arranged distributed in a ring around the clear opening, the longitudinal axes of which bores extend perpendicularly through the respective connection surface; wherein furthermore, in the region of the worm, sensors are provided which permanently detect the (rotational) position of the worm; and to a method for the operation of a worm gear mechanism of said type. 115422143423. Worm gear () , comprising a worm shaft () with a worm thread () formed or worked , in particular cut , directly into the shaft main body , and also comprising a worm wheel that meshes with said worm thread , which worm wheel is of annular form and is integrated with one of two ...

Pulley lagging laminate having a visual wear indicator

A pulley lagging laminate with at least one inner layer having different light reflecting embodiments than the outer layer. When the outer layer wear reaches the inner layer(s), the different reflecting embodiments of the inner layer(s) signal the need to replace the worn lagging laminate.

HYDRAULIC FRACTURING SYSTEM AND METHOD FOR OPTIMIZING OPERATION THEREOF

A hydraulic fracturing system includes an engine, transmission, and hydraulic fracturing pump. A driveshaft is coupled between the transmission and the hydraulic fracturing pump to transfer torque from the engine to the hydraulic fracturing pump. The hydraulic fracturing system also includes an advisory system including a display, a memory storing fuel consumption data and component durability data, and a controller. The controller is programmed to receive pump flow and pressure settings, identify an optimal transmission gear based on the pump flow and pressure settings, the fuel consumption data and the component durability data, and cause the optimal transmission gear to be displayed on the display. 1. A hydraulic fracturing system , comprising:an engine;a transmission;a hydraulic fracturing pump;a driveshaft coupled between the transmission and the hydraulic fracturing pump to transfer torque from the engine to the hydraulic fracturing pump using the transmission and the driveshaft;an advisory system including a display;a memory storing fuel consumption data and component durability data; and receive pump flow and pressure settings;', 'identify an optimal transmission gear based on the pump flow and pressure settings, the fuel consumption data and the component durability data; and', 'cause the optimal transmission gear to be displayed on the display., 'a controller programmed to2. The hydraulic fracturing system of claim 1 , wherein the component durability data corresponds to at least one of durability data for a transmission component and durability data for a pump component.3. The hydraulic fracturing system of claim 2 , wherein the durability data for the transmission component includes transmission gear life prediction data.4. The hydraulic fracturing system of claim 2 , wherein the durability data for the pump component includes pump cavitation prediction data.5. The hydraulic fracturing system of claim 4 , wherein the pump cavitation prediction data ...

Method for Early Error Detection in a Drive System, a System for Early Error Detection, Wind Generator Comprising the System and Use of the System

A system for early error detection in a wind generator drive system includes a first rotation sensor that is coupled to an input shaft of a drive gear or transmission stage to capture an input angle of rotation. A second rotation sensor is coupled to an output shaft of the drive gear or transmission stage to capture an output angle, which is performed in response to the input angle. A control unit is configured to simultaneously capture a first and a second time dependent signal, which are indicative of the input angle and the output angle, respectively. The control unit is configured to determine a time dependent angle difference from the first and the second signals under consideration of a transmission ratio of the drive gear or transmission stage, and analyzes this difference to perform early error detection in the drive system. 1. A system for early error detection in a drive system of a wind generator comprising:a) a first rotation sensor, which is coupled to an input shaft of a the drive gear or transmission stage, to sense an input angle of rotation,b) a second rotation sensor, which is coupled to an output shaft of the drive gear or transmission stage, to sense an output angle of rotation, wherein the output angle of rotation is an output of the drive gear or transmission stage, which is performed in response to the input angle of rotation,c) a control unit, which is configured to simultaneously capture a first time dependent signal for the input angle of rotation from the first rotation sensor and a second time dependent signal for the output angle of rotation from the second rotation sensor, wherein the control unit is further configured to determine a time dependent angle difference from the first and the second time dependent signals under consideration of a transmission ratio of the drive gear or transmission stage, and wherein the control unit is further configured to analyze this time dependent angle difference to perform an early error detection in ...

STRUCTURAL HEALTH MONITORING OF AN ESCALATOR DRIVE SYSTEM

A structural health monitoring system is provided. The system includes a drive system having a first drive member a second drive member operationally connected to the first drive member, and a tension member operationally connecting the first drive member to the second drive member. At least one sensor is configured to monitor a characteristic of at least one of the first drive member and the second drive member. A processor in communication with the at least one sensor, is configured to determine if the structural health of the tension member is compromised based on the monitored characteristic. The processor is further configured to perform a safety response action when the structural health of the tension member is determined to be compromised. 1. A structural health monitoring system comprising: a first drive member;', 'a second drive member operationally connected to the first drive member; and', 'a tension member operationally connecting the first drive member to the second drive member;, 'a drive system comprisingat least one sensor configured to monitor a characteristic of at least one of the first drive member and the second drive member; anda processor in communication with the at least one sensor and configured to determine if the structural health of the tension member is compromised based on the monitored characteristic, the processor further configured to perform a safety response action when the structural health of the tension member is determined to be compromised.2. The structural health monitoring system of claim 1 , further comprising at least one additional sensor configured to monitor a characteristic of the other of the first drive member and the second drive member.3. The structural health monitoring system of claim 2 , wherein the processor is configured to monitor a transfer function between the first and second drive members to determine if the structural health of the tension member is compromised.4. The structural health monitoring ...

Gearing, motor-gearing combination and shaft-gearing combination

Gearing for a motor-gearing combination with a gearing output shaft, having: a drive interface; an output interface on the gearing output shaft; a transmission device configured for wireless bidirectional data transmission between the drive interface and the output interface and configured for wireless energy transmission from the drive interfaceto the output interface.