УСТРОЙСТВО СОВМЕЩЕННОГО ЭЛЕКТРИЧЕСКОГО ТОРМОЗА И ЭЛЕКТРОПРИВОДА ПОДАЧИ ДОЛОТА ДЛЯ БУРОВОЙ ЛЕБЕДКИ

Изобретение относится к области бурового оборудования и может быть использовано для буровых лебедок. Устройство содержит асинхронный двигатель с фазным ротором, статорная обмотка которого подключена к тормозным резисторам, а роторная обмотка подключена к преобразователю частоты. В режиме спуска при высокой скорости вращения асинхронный двигатель работает в режиме динамического торможения. Тормозной момент двигателя регулируется током возбуждения, подаваемым от преобразователя частоты. Для поддержания тормозного момента двигателя в широком диапазоне скоростей тормозные резисторы выполнены из ферромагнитного материала. При низких скоростях вращения преобразователь частоты переводится в инверторный режим и электродвигатель работает в рекуперативном тормозном режиме. Для получения более жестких механических характеристик при низких скоростях тормозные резисторы замыкаются контактором. Предложенное устройство обеспечивает как генераторный, так и двигательный режимы его работы в режиме аварийного ...

ЛЕБЕДКА С УСОВЕРШЕНСТВОВАННЫМ ТОРМОЖЕНИЕМ БАРАБАНА ПРИ ВЫПУСКЕ КАНАТА

Изобретение относится к подвесным механизмам. Лебедка содержит барабан с намотанным тросом, синхронный электродвигатель, связанный с барабаном и способный при выпуске троса работать в двигательном и генераторном режиме, а также блок управления. Электродвигатель соединен с трехфазной сетью переменного тока через выпрямитель, выполненный на основе мостовой диодной схемы. К инвертору присоединен тормозной модуль. Тормозной модуль содержит конденсатор, балластный резистор и транзисторный ключ. Конденсатор имеет параллельное соединение с последовательно соединенными друг с другом балластным резистором и транзисторным ключом. При работе электродвигателя в генераторном режиме, блок управления замыкает транзисторный ключ, когда напряжение на конденсаторе повышается до первой пороговой величины и размыкает ключ, когда напряжение на конденсаторе снижается до второй пороговой величины. Вторая величина меньше первой величины, но выше максимального напряжения на выходе выпрямителя. Расширяется диапазон ...

Тормоз с автоматическим регулированием тормозного момента

Устройство для управления нажимом колодок тормоза

Устройство защиты тормоза

Устройство для автоматического управления тормозом

Устройство для предотвращения изменения направления вращения кранового электродвигателя при спуске груза

Электропривод подъемных установок

Электрогидравлический толкатель

Устройство для точной остановки шахтных подъемных машин

Регулятор хода шахтных электрических подъемников

Bremsüberwachung für Aufzugsbremsen

Verfahren zum Steueren des Bremsvorganges eines Kranes

FERNAUSLOESUNG ZU GESCHWINDIGKEITSBEGRENZERN MIT PENDEL FUER AUFZUEGE ODER AEHNLICHE HEBE- UND FOERDERMITTEL

ELEVATOR APPARATUS

BRAKE AND PROCEDURE FOR ADJUSTABLE BRAKE

DEVICE FOR THE ADJUSTMENT OF THE BRAKING FORCE OF AN ESCALATOR SAFETY BRAKE

Brake for a lift

EDDY CURRENT RETARDER FOR USE IN EMERGENCY ESCAPE AS FROM HIGHER STORIES OF A BUILDING

A device utilizing energy conversion into heat by eddy currents for braking the descent of a refugee as from higher stories of a building in the event of a fire or other emergency. Included is a payoff reel rotatably mounted on a frame for paying off wire rope. The payoff reel is coupled via overdrive gears to a rotor of electrically conductive material which also is rotatably mounted on the frame and which rotates at a greatly increased speed in response to the rotation of the payoff reel. A permanent magnet or magnets of generally annular configuration are secured to the frame in an opposed relation to the rotor for inducing eddy currents therein upon rotation of the payoff reel. The induced eddy currents convert the energy of the revolving payoff reel into heat.

PRECISE LOAD POSITIONER

METHOD AND DETECTION SYSTEM FOR MONITORING THE SPEED OF A LIFT CAGE

... ²²In this method the speed of a lift cage is monitored. In the case of excess ²speed caused by ²brake failure of the motor brake or shaft fracture of the drive pulley shaft ²the safety circuit ²is opened and the detection system is transferred from the normal operational ²state (circle ²with a 1) to the retardation state (circle with a 2) in which it is monitored ²whether the lift ²cage is retarded after defined speed presets. After a successful retardation ²the detection ²system is transferred to the state of standstill monitoring (circle with a 3) ²in which it is ²monitored whether the lift cage leaves its standstill position. If the presets ²of state 2 or ²state 3 are not fulfilled, the detection system is transferred to the braking ²state of the brake ²(circle with a 4) in which a brake which fixes the lift cage is activated.² ...

DISPOSITIF DE COMMANDE DE FREIN D'UN TAMBOUR DE TREUIL EQUIPANT UNE PLATEFORME DE FORAGE ET PROCEDE POUR CONTROLER UN TEL DISPOSITIF

Dispositif (40) de commande de frein d'un tambour de treuil (2) équipant une plateforme de forage opérant un outil dans un puits, comprenant une barre de frein (24) ayant une première extrémité (29) reliée mécaniquement à des bandes de frein prévues pour agir sur le tambour et une seconde extrémité (30) pourvue d'une première poignée de commande de frein (31). Le dispositif (40) comprend en outre des moyens d'actionnement (32) configurés pour être commandés et agencés pour agir mécaniquement sur la barre de frein et une seconde poignée de commande de frein (33) agencée pour asservir les moyens d'actionnement.

Bremsvorrichtung, insbesondere für Aufzüge.

Winde mit luftgekühlter Magnetbremse.

Automatische Reibungslamellenbremse an Elektromotoren zur stossfreien Abbremsung bei Stromunterbrechung in der Motorzuleitung.

Clutch, in particular for small electric hoists

КОЛОДОЧНЫЙ ЭЛЕКТРОМАГНИТНЫЙ ТОРМОЗ

Колодочный электромагнитный тормоз содержит тормозные колодки, систему рычагов, замыкающую пружину, электромагнитное приводное устройство, резистор, конденсатор, электромагниты и шток.

Horizontal electromagnetic pushing safety braking device for gear and rack lifting device

Transmission gear and coupler detection protection system and crane

Novel intelligent multi-stage brake windlass

Hoist hoisting mechanism drum brake's electronic opening device

A safety arrangement for working as when elevator car takes place to exceed speed limit

Self-locking outer edge brake

The invention discloses a self-locking outer edge brake which comprises a braking force bearing support, a connecting rod, a braking arm and a jacking mechanism. One end of the connecting rod is rotatably connected with the braking force bearing support, and the other end of the connecting rod is rotatably connected with a mounting end of the braking arm. The jacking mechanism is located below the braking arm. The end face contour of a braking end of the braking arm is adaptive to a side face of a round disc to be braked. A friction plate is fixedly arranged on the end face of the braking end and is tightly attached to and fully covered on the end face of the braking end. When the braking arm is in a braking position, the friction plate is attached to the side face of the braking disc. The self-locking outer edge brake carries out braking to the cylindrical side face of the round disc to be braked like a side face of the braking disc of a coiling block and achieves the purposes of enabling ...

Double-push hub type magnetic device

The invention discloses a double-push hub type magnetic device which comprises a cylindrical casing, outer end covers, a cylindrical supporting seat, magnetic guiding rings, electromagnetic coils and two mandrels, wherein the outer end covers are respectively arranged at two ends of the casing; the cylindrical supporting seat is arranged at the middle of the casing; the magnetic guiding rings are respectively connected to two sides of the supporting seat; the electromagnetic coils are connected between the magnetic guiding rings and the outer end covers; the two mandrels are arranged in the casing and are symmetrically arranged on two sides of the middle supporting seat; each mandrel comprises a mandrel inner end, a mandrel outer end and a cylindrical moving core body; each mandrel inner end is arranged on the middle supporting seat in a penetrating manner; each mandrel outer end is arranged on the outer end cover on one side of the casing in the penetrating manner; each cylindrical moving ...

Mechanism of crane wheel type brake

An electromagnetic brake device

BRAKING DEVICE FOR ELEVATOR HOIST

FIXING INTERFACE FOR A MACHINERY BRAKE, AND A MACHINERY BRAKE

The object of the invention is a mechanical fixing interface (1) for fixing a machinery brake (2) in a hoisting machine, a machinery brake (2), and a method for installing the machinery brake. The fixing interface (1) is formed in the frame part (6) of the hoisting machine. The fixing interface (1) comprises two fixing surfaces (7) for receiving the fixing lugs (8A, 8B) of the machinery brake, and between the fixing surfaces (7) is a space for the machinery brake (2).

ELECTRIC WINCH DEVICE

This electric winch device is provided with: a required braking force derivation unit (44) that derives a required braking force which is the braking force required to stop a free-falling object at a position at an allowable stopping height set by a setting unit; a braking force determination unit (50) that determines, from among an operational braking force derived by an operational braking force derivation unit, a first braking force to be borne by a braking device and a second braking force to be borne by a braking force that is generated in an electric motor due to the consumption of regenerative power; and a control unit (52) that imparts the first braking force, which has been set by the braking force determination unit to the braking device, to a winch drum. The braking force determination unit (50), in the event that the operational braking force derived by the operational braking force derivation unit (44) when stopping the free-falling object is equal to or greater than the required ...

HOISTING MACHINE AND METHOD FOR CONTROLLING HOISTING MACHINE

In order to improve, without the use of complicated control and special devices, the service life of contacts of a relay for driving a brake of a hoisting machine in which an inverter control is used, this hoisting machine is characterized by being provided with: an inverter-controlled motor; a brake that is driven by using two phases of a three-phase power supply and brakes the motor; two brake-driving relays respectively provided to two-phase connection wires for driving the brake; and a control device that supplies a control signal to the brake-driving relays, wherein the control device generates, on the basis of an operation input of the hoisting machine, two types of brake-driving signals in which opening/closing timings for the two brake-driving relays are mutually shifted, and alternately supplies the two types of brake-driving signals to the two brake-driving relays for every operation of the brake.

BRAKE DEVICE OF ELEVATOR

A brake device of an elevator capable of applying a brake to the brake wheel (1) of the elevator by moving forward brake shoes (5) by brake springs (6) and releasing the brake by moving backward the brake shoes (5) by attracting movable cores (10) by electromagnets (11), comprising exciting elastic bodies (14) resisting attraction forces by reactions with an increasing rate larger than that of the attraction forces of the electromagnets (11) due to a reduction in clearance, wherein when the braking is released, the electromagnets (11) gradually attracts the movable cores (10) according to the gradual increase of an exciting current while keeping a balance, midway during the releasing, with comprehensive reactions by the excited exciting elastic bodies (14) and the brake springs (6) to reduce impact sound by attraction, and when the braking is applied, the movable cores (10) gradually move forward according to the gradual decrease of the exciting current until an exciting point to reduce ...

Brake, and elevator system

A brake, which includes a frame part of the brake, an armature part movably supported on the frame part, and attached to the frame part a limit switch, the switching state of which changes when movement is exerted on the limit switch in the operating direction of the limit switch. The brake also includes a measuring pin that is movably supported on the frame part of the brake and that is separate from the armature part, which measuring pin is connected to the limit switch.

ANTI-FALL MECHANISM FOR LIFTING EQUIPMENT

A lifting equipment is provided. The lifting equipment may include a working assembly, a safety assembly, and a shaft assembly. The working assembly may include a working fastener. The working fastener may be spirally connected to the shaft assembly. When the shaft assembly rotates the working fastener may move along the shaft assembly. The safety assembly may comprise a limiting component. The limiting component may be connected to the working fastener. A portion of the safety assembly may be in located a space between the limiting component and the working assembly.

HOIST FOR ELEVATOR AND BRAKE SYSTEM

Brake for an elevator

Brake for lift, has two brake halves, each with active and passive brake linings, and compression spring activating active brake lining, where passive brake lining is activated when one brake halve fails The brake (1) has a housing (2) that is formed with a U-shaped cross-section, and two brake halves (3), each with active and passive brake linings (4, 5). A compression spring (6) activates the active brake lining and produces braking force against a brake surface when an actuator is deactivated. The passive brake lining is activated when one of the brake halves fails. - An INDEPENDENT CLAIM is also included for a method of operating a brake for a lift.

Safety brake for escalator

Apparatus for adjusting brake force for passenger conveyor emergency brake

Emergency brake assembly for use in passenger conveyor system e.g. escalator or moving walkway The emergency brake is provided with a brake force adjustment assembly. The assembly supplies a braking force that is proportional to the passenger load imposed on the main drive motor of the conveyor at any point in time. Thus, if the conveyor is lightly or heavily loaded with passengers, the emergency brake force will be automatically proportionally decreased or increased. In the event of an emergency stop condition, the braking force applied to the drive sprocket axle will be sufficient to stop movement of the conveyor within the predetermined time period that is preprogrammed into the conveyor controller.

HOIST

PURPOSE: To prevent generation of an uneven contact in a brake lining by arranging a brake device between a motor shaft and a 1-step pinion in a condition that a solenoid base is penetrated with a motor shaft. CONSTITUTION: A through hole 24 is provided in a solenoid base 23 to which a DC solenoid 13 is mounted, and brake devices 9, 29 are arranged between a motor shaft 10 and a 1-step pinion 8 in a condition that this solenoid base 23 is penetrated with the motor shaft 10. Thus by decreasing a distance very short from the motor shaft 10 to the brake wheel 9, generation of the center displacement, caused by the long distance from the motor shaft 10 to the brake wheel 9, is prevented in its turn with an uneven contact eliminated in a brake lining. COPYRIGHT: (C)1991,JPO&Japio ...

ELECTRIC HOISTING/PULLING DEVICE

PURPOSE: To secure the weight balance of the whole device even if an electromagnetic brake is installed, simplify the lead wire pulling-out constitution for the electromagnetic brake, and eliminate the influence supplied to the electric installation substance of the abrasion powder generated during the operation of the electromagnetic brake. CONSTITUTION: An electromagnetic brake 20 is arranged between a motor 7 and a motor side plate 1 on which a motor case 6 is installed, and a brake body 26 is installed on the motor side side plate 1. COPYRIGHT: (C)1995,JPO ...

BRAKING DEVICE FOR AN ELEVATOR WINDING MACHINE AND AN ELEVATOR USING A BRAKING DEVICE

BRAKING DEVICE FOR AN ELEVATOR WINDING MACHINE AND AN ELEVATOR USING A BRAKING DEVICE

Elevator system and brake system for an elevator

D C SOLENOID CONTROL CIRCUIT

METHOD AND APPARATUS FOR BRAKING A DERRICK WINCH

BRAKE MONITORING FOR ELEVATOR BRAKES

BRAKE SYSTEM WITH SAFE TORQUE ADMISSION

BRAKE MECHANISM AND PROCEDURE FOR THE DECELERATION OF ESCALATORS AND/OR MOVING WALKWAYS

HOIST OR THE LIKE

METHOD AND DEVICE FOR CONTROLLING A LIFT BRAKE

The invention concerns a braking system in which a spring (3) disposed in a housing (2) engages with spring force on a movable carrier plate (4) and holds the latter in a braking position, brake linings (5) disposed on the carrier plate (4) being urged against a brake disc (6). An air gap (7) between the housing (2) and carrier plate (4) corresponds to the path covered by the carrier plate (4), which is guided by means of peripheral guide bolts (8), when a coil (9) disposed in the housing (2) has been deactivated. When the coil (9) is activated, the electromagnetic force of the coil (9) counteracts the spring force. The carrier plate (4) is thus moved into the output position, which is monitored by a microswitch (10). A potentiometer (11) with a slider (12), which is moved by means of the carrier plate (4), is provided for monitoring the position of the carrier plate (4). The output resistance of the potentiometer (11, 12) thus varies in a linear manner with the movement of the carrier ...

Elevator equipped with screw

Building-block-type safety brake

The invention relates to the technical field of brakes, in particular to a building-block-type safety brake comprising a supporting holder and a supporting rack. A break disc is mounted on the supporting holder, a brake component used for controlling the brake disc is mounted on the supporting rack, and a disc-type self-locking device is mounted on the brake component. The brake component comprises sidling seats, building blocks, an electromagnetic valve and friction sheets; the sidling seats are symmetrically distributed on two sides of the brake disc, the building blocks are mounted on the sliding seats in a sliding manner, the electromagnetic valve located at the bottoms of the building blocks is used for controlling the same to operate, and the friction sheets are located between the brake component and the building blocks. The building-block-type safety brakes are adaptable to roll devices of engineering machinery, lifting machinery, mining machinery, winches, hoists and the like and ...

Double -brake three -phase electric block circuit

Stopper of elevator hauler

Double-driving and double-braking improved structure for single-driving and double-braking dragging machine brake

Disc brake winch

DEVICE INCLUDING A PULLEY, A CLUTCH, A RETARDER, AND A BRAKE, IN PARTICULAR FOR HOISTING GEARS

ELEVATOR TRACTION MACHINE

Guincho, sistema de guincho, e, método para operar o mesmo

Rope braking system

A compression chuck for variously conducting and braking a rope, wherein the compression chuck includes a first and second portions. The invention includes a first biasing mechanism which maintains the compression chuck first and second portions in a disengaged condition with the rope, wherein the rope is conducted freely in response to outside forces on the rope. Also included is an actuator, wherein the actuator is operable to overbear the first biasing mechanism to place the compression chuck in an engaged condition with the rope in response to a rope break, braking movement of the rope. The first and second compression chuck portions may be carried on opposing parallel plates that are biased apart until the actuator moves such plates together in response to a rope break. At least one of the plates may be fixed to a crane head, crane, or other structure proximate a moving rope, when installed.

ELEVATOR BRAKE ASSEMBLY

An elevator brake assembly including an asymmetrical brake comprising at least three brake segments, a brake activating device operably coupled to the asymmetrical brake, the brake activating device comprising a first activation element and a second activation element, wherein the first activation element is configured to activate one of the at least three brake segments, and the second activation element is configured to activate the remaining of the at least three brake segments.

ELEVATOR MACHINE BRAKE WITH INTEGRATED BEARING AND BRAKE SURFACE

An elevator machine (10) includes a machine shaft (14, 14′) and a sheave (26) that rotates with the machine shaft (14, 14′). A motor (12) selectively rotates the machine shaft (14, 14′). A brake (30) having at least one brake armature (36) selectively moves a brake rotor (28) coupled for rotation with the shaft (14, 14′) between a braking position and a released position. The brake rotor (28) selectively contacts a braking surface (44) formed directly on a housing (20, 22, 84, 90) to resist rotation of the machine shaft (14, 14′).

MONITORING OF BRAKE

METHOD AND DEVICE FOR MONITORING AN ELECTROMAGNETIC BRAKE

Zur Überwachung einer elektromagnetischen Bremse (2) wird ein Spulenstrom (Ib) erfasst, um eine Ankerbewegung zu detektieren. Eine detektierte Ankerbewegung wird verworfen, wenn eine Versorgungsspannung (Ub) für den Spulenstrom (Ib) von einem vorgegebenen Verlauf zu stark abweicht aber nur dann, wenn die Abweichung der Versorgungsspannung (Ub) in dem Zeitbereich, in welchem die Ankerbewegung detektiert wurde, auftrat und/oder wenn die Abweichung stark genug war, um eine Ankerbewegung herbeizuführen und/oder die Abweichung das richtige Vorzeichen besaß.

CONTROL DEVICE AND METHOD FOR HOIST

Elevator disc brake

ABNORMALITY DETECTING METHOD FOR D.C ELECTROMAGNETIC BRAKE

PURPOSE: To discriminate and detect abnormality of an electromagnetic brake with good stability and with high reliability by comparing the change with the passage of time of an exciting current continuously measured during exciting with the change with the passage of time of an exciting current during normal operation to detect abnormality of a brake. CONSTITUTION: A saving resistance 32 having designated resistance is interposed in an electromagnetic coil 16 showing inductance connected to a power supply showing voltage through a contactor 31, and designated resistance is parallel connected to the electromagnetic coil 16. A shunt 33 is provided between the contactor 31 and the electromagnetic coil 16, and a micro current is converted to a digital signal by an A/D converter 34 to be taken in an arithmetic unit 35. The change with the passage of time of a current value is processed by the arithmetic unit 35 to discriminate each abnormality and cause a display device or a warning device 36 ...

ПРЕДОХРАНИТЕЛЬНЫЙ ДИСКОВЫЙ ТОРМОЗ ДЛЯ ЛИФТОВ

Использование: в лифтостроении, в частности в предохранительных дисковых тормозах. Сущность изобретения: тормоз состоит из двух идентичных тормозных рычагов, каждый из которых имеет отдельную пружину сжатия, которая упирается в общий центр упора пружины, которые жестко соединен с машинной частью. Обе подсистемы не имеют взаимных механических проникновений и перекрытий. Отпускание тормоза происходит электромагнитно посредством магнита горшкового типа, который жестко закреплен на тормозном рычаге, и посредством якорной пластины, которая жестко закреплена на другом тормозном рычаге. Крепления магнита горшкового типа и якорной пластины на тормозных рычагах являются регулируемыми, тем самым якорная пластина всегда точно параллельно притягивается магнитом горшкового типа и не создает ударного шума. 5 з.п. ф-лы, 3 ил.

Грузоподъемная лебедка

Изобретение относится к подъемным устройствам, а именно к лебедкам ,с электромагнитным тормозным генератором . Целью изобретения является повышение эксплуатационных качеств лебедки путем расширения диапазона per гулирования скорости опускания груз.а. Лебедка содержит приводной двигатель 1, фрикционный тормоз 2, рабочий механизм 3, ведущий вал которого связан с приводным двигателем 1 и ротором тормозного генератора 4, статор которого связан через самотормозящий редуктор 5 с валом дополнительного двигателя 6. 1 ил.

Устройство для регулирования скорости асинхронного электропривода подъемно-транспортной установки

Устройство для автоматического управления скиповыми подъемными установками

ИHДУKTOP ЭЛEKTPИЧECKOГO TOPMOЗA

Индуктор электрического тормоза

Использование: в подъемных устройствах , в частности электрических индукционных тормозах. Индуктор электрического тормоза содержит кольцевой магнитопро- вод 1 с полюсами 2, выполненными за одно целое с магнитопроводом 1. Полюса 2 разделены впадинами и выступают за магнито- провод 1 в осевом направлении, при этом одна поверхность полюсов 2 образована конической поверхностью, другая - цилиндрической , соосными с кольцевым магнитопроводом 1. Боковые участки полюсов 2, расположенные на магнитопроводе 1, выполнены в плане прямоугольными, а в поперечном сечении - увеличивающейся к основанию формы. Выступающие за магни- топроврд 1 участки полюсов 2 выполнены в поперечном сечении уменьшающейся к основанию формы, а их боковые поверхности выполнены коническими. Боковые конические поверхности образованы ступенчатыми цилиндрическими поверхностями. 1 з. п. ф-лы, 6 ил.

Электрический ограничитель скорости шахтных подъемных машин

Bremsvorrichtung für eine elektrische Winde

Vorgesehen ist eine Bremsvorrichtung zum Bremsen einer elektrischen Winde einer Baumaschine, die sicheres Bremsen mit großer Regeneration sicherstellt. Die Vorrichtung beinhaltet eine Einheit zur Erzeugung einer Regenerativleistung (12, 18), eine Einheit zum Empfang einer Regenerativleistung (16), eine Bremsvorrichtung (20) zum mechanischem Bremsen separat von der Einheit zur Erzeugung einer Regenerativleistung (12, 18) und eine Bremssteuereinheit (30), die einen Bereich zur Berechnung einer erforderlichen Bremskapazität, einen eine Regenerationskapazität berechnenden Bereich zur Berechnung einer Regenerationskapazität, und einen Befehlsbereich beinhaltet. Der Befehlsbereich führt die Bremsung nur mit einem regenerativen Betrieb durch, wenn die Regenerationskapazität nicht kleiner als eine erforderliche Bremskapazität ist, während die Bremsvorrichtung (20) nicht betrieben wird, und berechnet eine Hilfsbremskraft äquivalent zu einem Unterschied zwischen der erforderlichen Bremskapazität ...

D. C. solenoid control circuit

A D.C. solenoid 15 control circuit such as for energising the solenoid in a braking mechanism in a hoist driven by an A.C. motor, 12, includes a rectifier 34 for converting A.C. to D.C. and providing an A.C. flow path and a D.C. flow path. The D.C. solenoid 15 is connected in the D.C. current flow path through the rectifier and drives an actuator within the solenoid. This activates a device such as the braking mechanism. High starting (in-rush) current drawn by the motor is converted to a high current level by the rectifier and input to the winding of the solenoid causing its immediate energization and first release of the spring biassed brake. The high starting current decreases during operation of the motor, resulting in a low holding current in the solenoid, sufficient to maintain the brake released. Because of the low holding current, the spring is released quickly on deactivation of the motor ...

"ELECTROMAGNETIC DISC BRAKE FOR AN ELEVATOR

The disc brake comprises a disc 15 spline-coupled with a rotational shaft 10S; a braking body 12 and an armature 18 disposed to clamp the disc against the body; braking springs 32 for pressing the armature against the disc; an iron core 24 which includes inner 25 and outer 26 magnetic poles each facing the armature and concentrically formed with respect to the rotational shaft; and an electromagnetic coil 30 which generates magnetic flux to pass through the inner and outer magnetic poles. The gap g0 between the inner pole 25 and the facing portion of the armature may be adjusted by means of nuts 31 on guide pins 17. The braking springs are disposed in portions of the outer magnetic pole. Further, the braking body may be supported through a sound absorbing member or one side of the armature facing the disc may be formed of a sound absorbing member. ...

Method and apparatus for braking a derrick winch

The invention relates to the braking, by means of a control lever, of the winch of a derrick equipped with a band brake and located away from the lever. The lever and the band brake are included in a servo-control circuit and connected by an electric transmission line. A force return is provided on the lever by means of a torque motor receiving the position error signal relative to the mobile end of the band in relation to the control value position given by the lever.

SAFETY WASHER BRAKE FOR ELEVATORS.

Elektrisch betriebene Winde und Verfahren zum Betreiben einer derartigen Winde

Bei einer elektrisch betriebenen Winde (1) sowie einem Verfahren zum Betreiben derselben, insbesondere für einen Eisernen Vorhang (4), ein Brandschutztor oder eine Rauchklappe, mit einer Seiltrommel (2) und einer Antriebseinheit (9) für die Seiltrommel (2), wobei die Seiltrommel (2) wenigstens ein aufwickelbares Seil (3) für ein Bewegen, insbesondere Heben und Senken, des zu bewegenden Gegenstands (4) aufweist, ist vorgesehen, dass für eine Bereitstellung einer Notsteuerung die insbesondere von einem Drehstrommotor (9) gebildete Antriebseinheit für die Seiltrommel (2) mit einem Servogenerator (12) gekoppelt bzw. koppelbar ist, wodurch sich insbesondere unter Erfüllung entsprechender Sicherheitsbestimmungen auch ein Notantrieb zuverlässig zur Verfügung stellen lässt.

BRAKE MECHANISM FOR LIFTING DEVICES LIKE PERSONENODER FREIGHT ELEVATORS.

METHOD AND DEVICE FOR CHECKING THE CORRECT OPERATION OF A SHOE BRAKE

ELECTRIC WINCH

Apparatus and methods for operating a winch system comprising a wire spooled onto a drum rotatably mounted to a shaft. A permanent magnet is mounted to the drum such that, when an electric current is applied to a coiled winding mounted to the shaft, the drum rotates about the shaft. The winch comprises a first braking system that controls the rotation of the drum about the shaft by controlling the application of the electric current to the coiled winding. The winch also comprises a second braking system that mechanically engages the drum so as to prevent the rotation of the drum about the shaft. The winch is used in conjunction with a control system that facilitates the use of the winch with lifting and supporting personnel working in elevated environments.

LOAD CONTROL POWER TRANSMISSION

The present invention is a transmission used with a winch drum. The transmission includes a drive shaft, an output shaft, a hydraulic or pneumatic system, a cooling system, a gear coaxially mounted on the output shaft, and an electric motor for powering the gear. The drive shaft is adapted to drive the winch drum and includes a clutch disc extending generally radially outwards from the drive shaft. The clutch disc has a face. The output shaft coaxially surrounds at least a portion of the drive shaft and includes a friction surface extending generally radially inward. The friction surface has a face opposing the face of the clutch disc. The hydraulic or pneumatic system is adapted to bring the faces into contact, and the cooling system is adapted to remove heat from the friction surface via a fluid coolant.

Non -maintaining big moment of torsion stopper

Casket control system is embraced to wireless winch

... 本实用新型涉及煤矿井下设备技术领域，特别是涉及一种结构简单、安全稳定、控制可靠、方便安装的无线绞车抱匣控制系统，包括无线控制器和绞车，所述绞车上设置有无线电磁制动器，所述无线控制器通过无线技术与绞车上的无线电磁制动器进行通讯，所述无线电磁制动器与绞车电联接，本实用新型的一种无线绞车抱匣控制系统的设计，采用无线技术实现对绞车的控制与运行状态的监测，保证设备安全稳定，控制可靠，方便安装。 ...

Steady braking circuit for variable amplitudes of single-jib crane

Elevator tractor brake

Machinery brake

A brake includes a frame part; an armature part supported by the frame part in a manner that allows movement; an electromagnet for opening the brake; and also a damping arrangement for damping the noise of the brake. The damping arrangement is made to be conductive to magnetic flux, and the damping arrangement is fitted on the pathway of the magnetic flux of the electromagnet of the brake.

Control device for hoist and control method thereof

A control device for a hoist, which enables easy judgment of the lifetime of a brake of a hoist is provided. The time setting unit sets the time from startup of a double winding induction motor to disengagement of the brake and the time from start of engagement of the brake to stopping of the double winding induction motor in accordance with the time from the startup of the double winding induction motor to generation of torque. The time changing unit detects if power-supply frequency of a power supply is 50 Hz or 60 Hz and can change at least one of the time from the startup of the double winding induction motor to the disengagement of the brake and the time from stopping of driving of the brake to stopping of double winding induction motor in accordance with the power-supply frequency of the power supply.

Safety system

This safety system includes: a toothed wheel, connected rotationally with respect to at least one rotating member to be braked, a worm driven rotationally by a motor upon rotation of the rotating member and permanently in mesh with the toothed wheel, a housing forming: a longitudinal wall located on the side of the worm diametrically opposed to the toothed wheel, and extending along the worm at a distance of the latter ranging between 0.001 and 0.01 times the diameter of the worm, and a first end wall integral with the longitudinal wall, located opposite a first longitudinal end of the worm; and energy absorption/dissipation elements interposed between the first end wall and the first longitudinal end of the worm, the worm being slidingly mounted in the housing such that the first longitudinal end of the worm comes closer to the first end wall when the worm slides in the housing.

Frictional damper for reducing elevator car movement

An exemplary device for use in an elevator system includes at least one friction member that is selectively moveable into a damping position in which the friction member is useful to damp movement of an elevator car associated with the device. A solenoid actuator has an armature that is situated for vertical movement. The armature moves upward when the solenoid is energized to move the friction member into the damping position. The armature mass urges the armature in a downward vertical direction causing the friction member to move out of the damping position when the solenoid is not energized.

Electromagnetic brake

An electromagnetic brake and a method for manufacturing an electromagnetic brake are disclosed. The electromagnetic brake includes a coil former, a coil, which is fitted on the coil former, and also an electrically connecting part, which is equipped to make an electrically conductive contact between the coil and the power supply cable supplying current to the electromagnetic brake.

Permanent Magnet Centering System for Brake

A brake assembly for an elevator traction machine is disclosed. The brake assembly may include a rotating element, a fixed element mounted in operational association with the rotating element and a positioning device connected to the fixed element. The positioning device may additionally magnetically interface with the rotating element to facilitate centering of the fixed element relative to the rotating element.

BRAKE FORCE MONITORING OF AN ELEVATOR BRAKE

A method and apparatus for monitoring an elevator drive brake wherein the method includes the steps of detecting a spring force (F) when the brake is closed, detecting a spring force (F) when the brake is open, determining the difference between the two detected spring forces (ΔF), and comparing the difference between the two detected spring forces with at least one preset permissible force differential (ΔF; ΔF) to determine whether the brake is defective. The apparatus includes a force sensor for each brake spring to be monitored, and an electronic monitor that stores at least one preset permissible force differential (ΔF; ΔF) and, during operation, compares the at least one preset permissible force differential with an actual force difference (ΔF) between an open spring force (F) and a closed spring force (F) as detected by the force sensor. 115-. (canceled)16. A method for monitoring an elevator drive brake comprising the steps of:detecting a spring force when the brake is closed;detecting a spring force when the brake is open;determining a difference between the two detected spring forces; andcomparing the difference between the two detected spring forces with at least one preset permissible force differential to determine whether the brake is defective.17. The method according to wherein the preset permissible force differential is a minimum force differential and the brake is determined to be defective if the difference between the two detected spring forces is less than or equal to the minimum force differential.18. The method according to wherein the preset permissible force differential is a maximum force differential and the brake is determined to be defective if the difference between the two detected spring forces is greater than or equal to maximum force differential.19. The method according to including opening an elevator safety chain of the elevator if the brake is determined to be defective.20. The method according to wherein the safety chain is ...

Safety Brake For a Lifting Device

A method and a safety brake for a lifting device, wherein a solenoid or another electromechanical actuator is used to actuate a pawl, where the position of the pawl is monitored via at least two switches or sensors, where the lowering motion of the load or the lifting device is monitored and the safety brake is triggered in the event of a fault via a safety-oriented controller and at least one sensor, where the solenoid or the pawl is arranged such that, via spring force and/or gravity, the pawl is brought into engagement when the actuator, for example, the solenoid, is deenergized such that it is possible to exactly define and monitor the limit speed and, by using the two sensors, it is also possible to monitor the function and the motion of the pawl and to detect undesired operating states. 113.-. (canceled)14. A safety brake for a lifting device , comprising:a brake blocking gear element connected to at least one drive of the lifting device;a pawl for engaging in a latch void of the brake blocking gear element in cases of an impermissible lowering speed of the lifting device, the brake blocking gear element being blocked;an actuator for activating the pawl, the pawl and the actuator being configured and arranged such that, in a non-energized state of the actuator, the pawl bears on the brake blocking gear element or moves into a latch void of the brake blocking gear element, and in an energized state of the actuator, the pawl moves away from the brake blocking gear element or moves out of the latch void and releases the brake blocking gear element;an electronic or numeric controller for controlling the drive and for activating the actuator, the controller monitoring the lowering speed of the lifting device, a transfer of the actuator to the non-energized state occurring when a permissible lowering speed is exceeded; andat least two sensors which are linked to the controller for determining an operating state of the pawl, a differentiation with respect to the ...

Elevator safety circuit

An elevator safety circuit for an elevator system in which an output is arranged to selectively provide an electrical current from an input to an electromagnetic brake coil via a current flow path. An actuator transistor is arranged in series along the current flow path between the input and the output, the actuator transistor being arranged to selectively allow passage of the electrical current. A controller is arranged to carry out a test operation when the braking element is in the open position. The test operation comprises operating the actuator transistor in its disabled mode for a time period, monitoring the electrical current through the brake coil, and determining whether the magnitude of the electrical current reduces during said time period, the time period being selected such that the magnitude of the electrical current remains sufficient for keeping the braking element in the open position during the test.

Lifting device and method for starting up the hoisting gear of such a lifting device

The present invention relates to a lifting device for example in the form of a crane such as a tower crane, with a hoisting gear comprising a hoisting cable which runs off from a drum that can be driven by a hoisting gear drive, and a hoisting gear brake for holding the hoisting cable in a braked position. The invention furthermore relates to a method for starting up the hoisting gear of such a lifting device from the braked position in which the hoisting gear brake holds a hoisting load, wherein a starting torque is built up by a hoisting gear drive against the closed hoisting gear brake, and the hoisting gear brake is released upon or after reaching the starting torque. According to the invention it is proposed that when the hoisting gear brake is closed, the current hoisting load is detected by means of a load detection device and the starting torque is adjusted by the hoisting gear controller with reference to the detected current hoisting load such that the hoisting force provided by the starting torque of the hoisting gear corresponds to the detected, current hoisting load.

ELECTROMAGNETIC-RELEASED, MULTI-DISC ENCLOSED SAFETY BRAKE

An electromagnetic-released, multi-disc, enclosed safety brake for primary use in offshore marine winch applications includes a stationary coil housing that encompasses springs that apply pressure to an armature, a pair of separator plates, three friction plates and a stationary endplate. The multi-disc brake is released by means of a DC voltage applied to the brake coil. The excited coil generates an electromagnetic force that attracts the armature across an air-gap thus reducing the spring force applied to the disc pack. The brake is applied when the DC voltage is removed from the brake coil. Various structures and methodologies for reducing vibrations in the brake are also provided. 1. A multi-disc electric motor brake , comprising:a motor mounting plate;an electromagnetic coil attached to said mounting disc;an armature in operative engagement with said electromagnetic coil;a plurality of springs in axially biasing engagement with said armature;a hub received on an end of a motor shaft, said hub engaging a plurality of friction rotors;a plurality of torque reaction members attached to said mounting plate and in engagement with a plurality of separator stators interleaved with said friction rotors and forming a disc pack; andan endplate attached to said torque blocks and axially encapsulating said disc pack.2. The multi-disc electric motor brake assembly according to claim 1 , wherein said torque reaction members are parallel-sided blocks.3. The multi-disc electric motor brake assembly according to claim 1 , wherein said friction rotors and separator stators have tapered surfaces matingly engaging each other.4. The multi-disc electric motor brake assembly according to claim 1 , wherein said separator stators comprise self-contained claim 1 , positive-release spring assemblies.5. The multi-disc electric motor brake assembly according to claim 1 , further comprising disc pack wear adjustment shims interposed between said endplate and said torque blocks.6. The multi- ...

Braking apparatus and elevator hoisting machine that uses same

In a braking apparatus, a buffering member that is formed using a flexible material is disposed between a fixed portion and a movable portion. An accommodating recess portion that accommodates and holds the buffering member is disposed on a buffering member holding portion that includes at least one of the fixed portion and the movable portion. An opening portion that communicates with an external portion of the buffering member holding portion is disposed on a portion of a side surface of the accommodating recess portion. The buffering member is removable from and insertable into the accommodating recess portion through the opening portion from a direction that is perpendicular to a direction of displacement of the movable portion.

BRAKING APPARATUS, ELEVATOR HOISTING MACHINE THAT USES SAME, AND BUFFERING REACTION FORCE ADJUSTING METHOD FOR A BRAKING APPARATUS

In a braking apparatus, a forcing device forces a movable portion in a direction that places a friction member in contact with a rotating body. A braking force releasing device displaces the movable portion in a direction in which the friction member separates from the rotating body in opposition to the forcing device. A buffering member is disposed between a fixed portion and the movable portion, and is made of a flexible material. A deforming device deforms the buffering member by pressing the buffering member in a direction that is perpendicular to the direction of displacement of the movable portion. 1. A braking apparatus comprising:a fixed portion;a movable portion that is displaceable toward and away from the fixed portion;a friction member that is disposed on the movable portion, and that brakes rotation of a rotating body by being placed in contact with the rotating body;a forcing device that forces the movable portion in a direction that places the friction member in contact with the rotating body;a braking force releasing device that displaces the movable portion in a direction in which the friction member separates from the rotating body in opposition to the forcing device;a buffering member that is disposed between the fixed portion and the movable portion, and that is made of a flexible material; anda deforming device that deforms the buffering member by pressing the buffering member in a direction that is perpendicular to the direction of displacement of the movable portion.2. The braking apparatus according to claim 1 , wherein the buffering member is made of rubber or a resin material claim 1 , and is disposed in an accommodating recess portion that is disposed on at least one of the fixed portion and the movable portion.3. The braking apparatus according to claim 1 , wherein:the buffering member is a hollow member; andthe deforming device is disposed inside the buffering member, and presses an inner circumferential surface of the buffering member ...

HOIST EQUIPPED WITH POWER-OFF TYPE ELECTROMAGNETIC BRAKE

Disclosed is a hoist equipped with a power-off type electromagnetic brake, wherein, at positions corresponding to an upper portion and a lower portion of a brake disk of an electromagnetic brake cover surrounding the electromagnetic brake, there are respectively provided insertion openings for first and second operation levers to be vertically inserted between an armature and a pressure-receiving plate. The first operation lever has an insertion portion to be fitted from above into the insertion opening to be inserted between the armature and the pressure-receiving plate, a retaining portion horizontally bent from the insertion portion, and a connection portion downwardly bent from the retaining portion to be connected with the second operation lever, and the second operation lever has an insertion portion fitted from below into the lower insertion opening to be inserted between the armature and the pressure-receiving plate, and an operation portion horizontally bent from the insertion portion. 1. A hoist equipped with a power-off type electromagnetic brake , wherein , at positions corresponding to an upper portion and a lower portion of a brake disk of an electromagnetic brake cover surrounding the electromagnetic brake , there are respectively provided upper and lower insertion openings for first and second operation levers to be vertically inserted between an armature and a pressure-receiving plate of the electromagnetic brake , wherein the first operation lever has an insertion portion to be fitted from above into the upper insertion opening to be inserted between the armature and the pressure-receiving plate , a lever portion horizontally bent from the insertion portion , and a connection portion downwardly bent from the lever portion to be connected with the second operation lever , and wherein the second operation lever has an insertion portion fitted from below into the lower insertion opening to be inserted between the armature and the pressure-receiving ...

BRAKE DEVICE FOR ELEVATOR AND AN ELEVATOR SYSTEM

An elevator braking device and an elevator system are provided by the present disclosure. The elevator braking device includes: a fixed frame; a floating bracket, which is disposed on the axial guide of the fixed frame and movable along the axial guide; a movable plate supported by the floating bracket, the movable plate having a second friction plate on a second side of the brake disc; an actuator; and a position self-adjusting member which includes a magnetic portion to act on the magnetic member on the floating bracket such that after the braking state is released, the floating bracket tends to move towards a balanced position, thereby reducing a difference between a first gap G between the first friction plate and the brake disc and a second gap G between the second friction plate and the brake disc. 1. An elevator braking device , comprising:a fixed frame, on which an axial guide is disposed;a floating bracket, which is disposed on the axial guide of the fixed frame and movable along the axial guide, the floating bracket being provided with a magnetic member and comprising a first friction plate on a first side of the brake disc;a movable plate supported by the floating bracket, the movable plate having a second friction plate on a second side of the brake disc;an actuator which acts on the movable plate such that the movable plate is capable of axially moving closer or away from the brake disc; and{'b': 1', '2, 'a position self-adjusting member, which comprises a magnetic portion to act on the magnetic member on the floating bracket such that after the braking state is released, the floating bracket tends to move towards a balanced position, thereby reducing a difference between a first gap G between the first friction plate and the brake disc and a second gap G between the second friction plate and the brake disc.'}2. The elevator braking device according to claim 1 , wherein a position of the magnetic portion of the position self-adjusting member can be ...

SYSTEM, MACHINERY BRAKE AND METHOD FOR CONTROLLING THE MACHINERY BRAKE

The system for controlling the opening and/or closing of a normally-closed machinery brake opening by means of at least one magnetizing coil and closing by means of at least one closing spring comprises: 1. System for controlling the opening and/or closing of a normally-closed machinery brake opening by means of at least one magnetizing coil and closing by means of at least one closing spring ,wherein the system comprises the following connected or connectable to each other: at least one calculation element, in which is recorded the target air gap values (s*(t)) of the machinery brake;', 'at least one air gap estimator, which is configured to produce an estimated air gap value (ŝ(t)) on the basis of an input (I(t)) by measuring the inductance of a magnetizing coil from a current ripple;', 'at least one air gap regulator, which is configured to produce a target value (I*(t)) for the current of the magnetizing coil on the basis of the target air gap value (s*(t)) and estimated air gap value (ŝ(t)) of the machinery brake; and', {'sub': 'PW', 'a current regulator, which is configured to produce a modulation reference (PW*, U) on the basis of the target value (I*(t)) and input I(t) for the current of the magnetizing coil; and'}], 'a) at least one estimation and control loop for controlling the opening and/or closing of the machinery brake, which estimation and control loop comprises at least one magnetizing coil;', {'sub': GE', 'PW, 'an amplifier circuit, which is configured to produce a control voltage (U) on the basis of the modulation reference (PW*, U);'}, {'sub': GE', '9, 'a power output stage controllable with a control voltage (U) for connecting voltage (U, 0->400 V) over the magnetizing coil at a frequency, which is greater than the frequency cut-off determined by the time constant L/R of the magnetizing coil; and'}, {'sub': '9', 'an ammeter for producing an input (I(t)) for measuring the magnetizing current brought about by the voltage (U) connected over the ...

MOTOR CONTROL MODULES WITH MULTIPLE POTTED SUB-MODULES, AND ASSOCIATED SYSTEMS AND METHODS

Motor control modules with multiple potted sub-modules, and associated systems and methods are disclosed. A representative electric motor control module can include a potted contactor module, a potted controller module at least partially nested inside the contactor module and mechanically connected to the contactor module, and one or more connectors positioned between and electrically connecting the contactor module and the controller module. 1. An electric motor control module , comprising:a potted contactor module;a potted controller module at least partially nested inside the contactor module and mechanically connected to the contactor module; andone or more connectors positioned between and electrically connecting the contactor module and the controller module.2. The motor control module of claim 1 , wherein the potted contactor module comprises a carrier tray and a contactor carried by the carrier tray.3. The motor control module of claim 2 , wherein the potted contactor module further comprises a contactor housing and an endcap containing the carrier tray and contactor.4. The motor control module of claim 2 , wherein the carrier tray includes one or more standoffs positioned to locate the controller module away from an end wall of the carrier tray to define at least in part a connector cavity containing the one or more connectors.5. The motor control module of claim 1 , wherein the controller module includes wireless communication capability.6. A winch claim 1 , comprising:a frame;a cable drum;a drive motor carried by the frame and operatively connected to the cable drum; and a potted contactor module;', 'a potted controller module at least partially nested inside the contactor module and mechanically connected to the contactor module; and', 'one or more connectors positioned between and electrically connecting the contactor module and the controller module., 'a motor control module carried by the frame and electrically connected to the drive motor, the motor ...

LIFTING DEVICE AND METHOD FOR OPERATING A LIFTING DEVICE

A lifting device includes a motor designed as a three-phase asynchronous motor via which the lifting device can be driven to lift and lower a load, and includes a brake resistor via which a power output resulting from a motor generator operation that is carried out when lowering the load at a lowering speed can be converted into heat. The brake resistor is designed for a rated power which is less than the power resulting with a nominal load and a nominal speed. A method for operating a lifting device includes lowering a load at a lowering speed while taking into consideration at least one load capacity characteristic value of the brake resistor for the lowering speed, a threshold is set such that while lowering the load at the lowering speed corresponding to the threshold, the resulting power output is limited to the at least one load capacity characteristic value. 1. A lifting mechanism for lifting and lowering a load , the lifting mechanism comprising a motor which is designed as a three-phase asynchronous motor and via which the lifting mechanism can be driven in order to lift and lower the load , and comprising a brake resistor via which power resulting from regenerative operation of the motor taking place during lowering of the load at a lowering speed can be converted into heat , wherein the brake resistor is designed for a nominal power that is less than the power resulting with a nominal load and nominal lowering speed.2. The lifting mechanism as claimed in claim 1 , further comprising a controller and wherein the motor is configured to be activated via the controller claim 1 , wherein the controller is configured to set a threshold value taking into consideration at least one load capacity characteristic value of the brake resistor for the lowering speed such that during lowering of the load at the lowering speed claim 1 , which corresponds to the threshold value claim 1 , the resulting power is limited to the at least one load capacity characteristic value ...

ELEVATOR SAFETY ACTUATOR SYSTEMS

Elevator systems are described that include a traveling component movable along a guide rail and an overspeed safety system. The safety system includes a safety brake connected to an electromechanical actuator. A safety brake element of the safety brake is operable to engage with the guide rail to stop the traveling component. The electromechanical actuator includes a frame, a first magnetic element operably connected to the safety brake, a second magnetic element movably attached to the frame, and a third magnetic element fixedly attached to the frame. The second magnetic element is movable to urge the first magnetic element from a first position toward a second position. In the second position, the first magnetic element is located proximate the third magnetic element. As the first magnetic element transitions from the first position to the second position, the safety brake element is actuated into engagement with the guide rail. 1. An elevator system comprising:a traveling component movable along a guide rail within an elevator shaft; andan overspeed safety system comprising:a safety brake and an electromechanical actuator operably connected thereto, wherein a safety brake element of the safety brake is operable to engage with the guide rail to stop movement of the traveling component, the electromechanical actuator comprising:a frame mountable to the traveling component;a first magnetic element movably attached to the frame, the first magnetic element operably connected to the safety brake;a second magnetic element movably attached to the frame; anda third magnetic element fixedly attached to the frame,wherein the second magnetic element is movable from a first position to a second position to urge the first magnetic element from a first position toward a second position, wherein in the second position, the first magnetic element is located proximate the third magnetic element, and wherein as the first magnetic element transitions from the first position to the ...

ELEVATOR BRAKE

An elevator brake () has at least one brake disc () comprising a metal matrix composite, the metal matrix composite including at least an aluminum alloy and silicon carbide. The metal matrix composite in particular comprises Aluminum 6061, silicon carbide and redmud. 12030. Elevator brake () with at least one brake disc () comprising a metal matrix composite including at least an aluminum alloy and silicon carbide.220. Elevator brake () according to claim 1 , wherein the aluminum alloy comprises magnesium and silicon.320. Elevator brake () according to claim 2 , wherein the aluminum alloy is Aluminum 6061.420. Elevator brake () according to claim 1 , wherein the metal matrix composite further comprises redmud.520. Elevator brake () according to claim 4 , wherein the metal matrix composite comprises 7% to 10% by weight of redmud claim 4 , wherein the metal matrix composite in particular comprises 8% to 9% by weight of redmud.620. Elevator brake () according to claim 1 , wherein the metal matrix composite comprises between 3% and 25% by weight of silicon carbide claim 1 , wherein the metal matrix composite in particular comprises between 10% and 20% by weight of silicon carbide.720. Elevator brake () according to claim 6 , wherein the metal matrix composite comprises 15% by weight of silicon carbide.8203036. Elevator brake () according to claim 1 , wherein the at least one brake disc () comprises a friction enhancing lining ().92022. Elevator brake () according to claim 1 , comprising a casing () including polyamide.1020252426. Elevator brake () according to claim 1 , comprising an electromagnet () including an electric coil () and a magnetic core () including silicon claim 1 , in particular silicon steel.11203025. Elevator brake () according to claim 10 , wherein the at least one brake disc () and the electromagnet () are arranged along a common axis (A).122028253024. Elevator brake () according to further comprising a first metal plate () which is arranged between ...

ELECTROMAGNETIC BRAKE

An electromagnetic brake with a housing body and a coil unit, wherein the coil unit has a positive connection to the housing body, wherein the coil unit is positively connected to the housing body by means of a snap-fit connection, wherein at least one snap hook of the coil unit is supported on a web of the housing body. 110-. (canceled)11. An electromagnetic brake with a housing body and a coil unit , wherein the coil unit has a positive connection to the housing body , wherein the coil unit is positively connected to the housing body by means of a snap-fit connection , wherein at least one snap hook of the coil unit is supported on a web of the housing body.12. The electromagnetic brake according to claim 11 , wherein the coil unit is secured against rotation relative to the housing body.13. The electromagnetic brake according to claim 11 , wherein the coil unit is mounted on the housing body in such a way that the coil unit in the region of the positive connection to the housing body is axially movable relative thereto in order to simplify assembly.14. The electromagnetic brake according to claim 11 , wherein an armature disk is guided axially via a groove-lug connection in the housing body claim 11 , wherein at least one guide groove claim 11 , preferably three guide grooves claim 11 , and at least one associated guide lug claim 11 , preferably three associated guide lugs claim 11 , are provided claim 11 , wherein the respective guide groove is preferably arranged in the housing body.15. The electromagnetic brake according to claim 11 , wherein a friction disk is provided claim 11 , which has a positive claim 11 , preferably bayonet-lock-type claim 11 , connection to the housing body and/or is secured against rotation relative to the housing body.16. The electromagnetic brake according to claim 15 , wherein the friction disk is secured against rotation relative to the housing body by means of at least one locking element and the locking element is a connecting ...

ELEVATOR BRAKE RELEASE MONITORING

Brake release sensors for an elevator can be replaced by an arrangement wherein the brake release is determined from the force caused by the brake. This is achieved by providing measuring device for measuring the weight of an elevator car between the brake and the motor body so that the weight of the elevator car is measured only when the brake is on. 1. An elevator system , comprising:a measuring device configured to measure a weight of an elevator car of an elevator;a brake configured to decelerate the elevator car; and monitoring, via the measuring device, a reference weight of the elevator car from a traction sheave of the elevator while the elevator car is driven in an unloaded state in different operating directions,', 'determining whether the reference weight of the elevator car is same while the elevator car is driven in the different operating directions,', 'storing the reference weight of the elevator car as a reference value, in response to the reference weight of the elevator car being same while the elevator car is driven in the different operating directions,', 'instructing the brake of the elevator to open,', 'measuring, via the measuring device, the weight of the elevator car from the traction sheave of the elevator after instructing the brake of the elevator to open,', 'comparing the weight to the reference value, and', 'detecting the failure of the release of the brake of the elevator based on a variation between weight of the elevator car and the reference value., 'an apparatus configured to detect a failure of a release of the brake of the elevator by,'}2. The elevator system of claim 1 , further comprising:the elevator car configured to move, within a shaft, between floors.3. The elevator system of claim 1 , wherein the apparatus comprises:a non-volatile memory configured to store the reference value; anda processor configured to read the reference value from the non-volatile memory.4. The elevator system of claim 1 , wherein the apparatus is ...

SMOOTH BRAKING CONTROL METHOD AND DEVICE FOR ELEVATOR AND ELEVATOR BRAKE

A smooth braking control method for an elevator, a smooth braking control device for an elevator, and an elevator brake. The elevator is provided with an elevator brake including a fixed part and a moving part, and in a first state, by driving the moving part to move toward an elevator power device so that a friction member in the moving part contacts the elevator power device, the elevator brake provides a braking force to stop an elevator car, and in a second state, by outputting an electromagnetic force from an electromagnetic member in the fixed part, the friction member is disengaged from the contact with the elevator power device. 1. A smooth braking control method for an elevator , wherein the elevator is provided with an elevator brake comprising a fixed part and a moving part , and in a first state , by driving the moving part to move toward an elevator power device so that a friction member in the moving part contacts the elevator power device , the elevator brake provides a braking force to stop an elevator car , and in a second state , by outputting an electromagnetic force from an electromagnetic member in the fixed part , the friction member is disengaged from the contact with the elevator power device , the smooth braking control method for the elevator comprising:judging whether the elevator car is in a decelerating state according to current running characteristics of the elevator car;obtaining a current deceleration of the elevator car if it is determined that the elevator car is in the decelerating state; andjudging whether the obtained current deceleration exceeds a preset value, and controlling a magnitude of the electromagnetic force output from the electromagnetic member if the obtained current deceleration exceeds the preset value, so that the deceleration of the elevator car is not larger than the preset value.2. The smooth braking control method for the elevator according to claim 1 , further comprising:setting a target deceleration of the ...

A DISC LOCKING DEVICE

A disc locking device, comprising: a base, a brake clamping block, a support mechanism, a front baffle, a limiting cover plate, a needle roller slide plate and a brake triggering mechanism, and so on. The base includes a bottom plate and two side vertical plates which are integrally arranged on the bottom plate; the two side vertical plates are oppositely arranged, and the inner walls thereof are all lateral slope surfaces, so that a wedge-shaped groove having a large front opening and a small rear opening is formed between the two laterally-vertical plates; and mounting holes penetratingly connected to the brake triggering mechanism are formed on the side vertical plates. The support mechanism includes a front support mechanism and a rear support mechanism. 1. A disc locking device , comprising: a base , a brake clamping block , a support mechanism , a front baffle and a brake trigger mechanism; whereinthe base comprises a bottom plate and two side vertical plates integrally formed on the bottom plate, the two side vertical plates are oppositely disposed, and inner walls thereof are lateral slope surfaces such that a wedge-shaped groove having a large front opening and a small rear opening is formed between the two side vertical plates, and each of the side vertical plates is provided with a mounting hole for connecting the brake trigger mechanism therethrough;the number of the brake clamping blocks are two and the two brake clamping blocks are juxtaposed in the wedge-shaped groove formed between the two side vertical plates on the base; a friction plate is disposed on a clamping surface of each brake clamping block, a back of each brake clamping block is a lateral slope surface, so that a body of the brake clamping block forms a wedge-shaped body, and the back of the brake clamping block is provided with a lateral chute for inserting a brake push rod;the support mechanism comprises a front support mechanism for laterally elastically pushing front portions of the ...

Fail safe bar for clutch type brake adjustment

Disclosed is an elevator machine including: a plurality of stationary structures, including a proximate stationary structure and a distal stationary structure, a brake support that comprises the proximate stationary structure, a brake disc rotably supported in the brake support intermediate the plurality of stationary structures, the plurality of stationary structures and the brake disc each including a respective one of a plurality of orifices, and the plurality of orifices being mutually aligned and offset from a rotational axis of the brake disc to removably receive an elongated bar, wherein when the bar is positioned in the plurality of orifices, the brake disc is prevented from rotating, thereby preventing vertical movement of an elevator car in an elevator hoistway.

Braking device, braking system for elevator and elevator system

A braking device, a braking system for an elevator, and an elevator system. The braking device comprises a braking unit and an actuating unit arranged to cause the braking unit to be in a braking state to provide a braking force to a mating external component, or in a non-braking state to stop providing the braking force to the external component, and the braking device further comprises a vibration isolating member with non-linear rigidity, for providing an effect of damping and vibration isolation between the actuating unit and the braking unit at least in the non-braking state.

Hoist performance diagnostic, implementation and sustaining services

Aspects assure the performance of a hoist system. Some aspects model different shape segments to different portions of braking pressure levels acquired over time during an emergency braking event. A linear shape is modeled to braking pressure values decreasing over a first time interval from initiation of the emergency braking event. A constant shape is modeled to generally constant acquired braking pressure values of a next, second time interval, another linear shape modeled to braking pressure values decreasing over a next, third time interval, and another constant shape is modeled to the braking pressure values acquired over a fourth interval from a time at which the speed value drops to zero, until an exponential shape is modeled to braking pressure values of a subsequent fifth interval. A pressure value defined by the constant shape modeled over the fourth interval determines a permissible braking pressure value for the emergency braking event.

Brake and an elevator

A brake comprising a frame, a braking member mounted on the frame movably between braking position and released position, and a rotatable lever mounted on the frame, the lever being functionally connected to the braking member such that movement of the lever axially away from frame moves the braking member towards released position. At least one cylindrical roller is mounted on one of the brake frame and lever, to be positioned between the brake frame and the lever, and the other of the brake frame and lever comprises a recess for receiving said cylindrical roller, and in that rotation of the lever is configured to cause said cylindrical roller to roll outwards from the recess along an edge portion of the recess forcing the lever to move axially away from the frame, thereby causing the braking member to move towards released position.

GANTRY BINARY SYNCHRONIZATION BLOCK-TYPE BRAKE

The present invention is implemented by a gantry binary synchronization block-type brake, which comprises: a gantry bracket comprised by a fixedly connected door-shaped frame; braking arms arranged on both sides of the gantry bracket with lower ends of the braking arms hinged to the gantry bracket; braking shoes connected to the braking arms for frictionally braking a braking wheel; a dual brake releaser secured to the gantry bracket for pushing the two braking arms outward synchronously; braking springs provided on the gantry bracket for pushing the braking arms so as to perform normal-mode braking; and a gap adjustment mechanism for adjusting a working gap between the braking shoes and the braking wheel. According to the present invention, the security risks in an elevator tractor or crane can be eliminated, the gap adjustment approach is simple, and reliability and versatility of an operation are considerably enhanced. 1. A gantry binary synchronization block-type brake , comprising:a gantry bracket comprised by a fixedly connected door-shaped frame;braking arms arranged on two sides of the gantry bracket with lower ends of the braking arms hinged to the gantry bracket;braking shoes connected to the braking arms for frictionally braking a braking wheel;a dual brake releaser secured to the gantry bracket for pushing the two braking arms outward synchronously;braking springs provided on the gantry bracket for pushing the braking arms so as to perform normal-mode braking; anda gap adjustment mechanism for adjusting a working gap between the braking shoes and the braking wheel.2. A gantry binary synchronization block-type brake of claim 1 , further comprising:a braking pull rod extending between the braking arms, the braking springs, and the gantry bracket for providing the braking springs with a pivot point for force application.3. A gantry binary synchronization block-type brake of claim 2 , wherein the gantry bracket comprises two side frames claim 2 , a top beam ...

ELECTRIC WINCH DEVICE

An electric winch device includes a required braking force estimation section which estimates a required braking force required to stop a free-falling object at a position at an allowable stopping height; a braking force determination section which determines, out of an operational braking force, each of a first braking force to be borne by a braking device and a second braking force to be borne by a braking force which is generated in an electric motor due to consumption of regenerative power; and a control section which causes the braking device to apply the first braking force to a winch drum. The braking force determination section determines the first braking force to be a braking force equal to or greater than the required braking force when, at a time of stopping of the free-falling object, the operational braking force is equal to or greater than the required braking force. 1. An electric winch device provided in a crane for raising and lowering an object , the electric winch device comprising:an electric motor;a winch drum driven by the electric motor to rotate for raising of the object;a braking device which brakes rotation of the winch drum;a braking operation part to be operated for stopping moving-down of the object;a regenerative power consumption unit which consumes at least a part of regenerative power regenerated by the electric motor at the moving-down of the object to cause the electric motor to generate a braking force on the rotation of the winch drum;a setting unit for setting an allowable stopping height which is a height of a lowest position at which the object is required to be stopped at a time of a free-fall of the object;an operational braking force estimation section which estimates an operational braking force which is a braking force according to an operation amount of the braking operation part;a required braking force estimation section which estimates a required braking force which is a braking force required to stop the free- ...

ELEVATOR BRAKE

An elevator brake () comprises at least one first braking element () and at least one second breaking element () extending parallel to each other orthogonally to a common axial direction and being movable with respect to each other in said axial direction; and at least two actuators (), which are arranged in a circumferential direction and configured for moving at least one of the first and second braking elements () in the axial direction. 150. Elevator brake () comprising:{'b': 58', '58', '58', '60', '60, 'i': a,', 'b', 'a, 'at least one first braking element (, ) and at least one second breaking element (, ) extending parallel to each other orthogonally to a common axial direction and being movable with respect to each other in said axial direction; and'}{'b': 70', '58', '58', '58', '60', '60, 'i': a,', 'b,', 'a, 'at least two actuators (), which are arranged in a circumferential direction and configured for moving at least one of the first and second braking elements (, , ) in the axial direction.'}25070. Elevator brake () of claim 1 , wherein the at least two actuators () have an identical or at least a similar structure.35070. Elevator brake () of claim 1 , wherein the at least two actuators () are operable independently of each other.45070665050726472. Elevator brake () of claim 1 , wherein each actuator () comprises at least one elastic element () claim 1 , which in particular is configured for activating the elevator brake () claim 1 , and at least one electromagnetic device claim 1 , which in particular is configured for releasing the elevator brake () claim 1 , wherein the at least one electromagnetic device in particular comprises an electric coil () and a rod () which is movable by activating and deactivating the electric coil ().550606044606044606044aaa. Elevator brake () of claim 1 , wherein at least one second braking element ( claim 1 , ) is attached to a rotating drive shaft () for preventing any rotational movement between the second braking ...

Locking Mechanism for Motorized Lifting Device

An apparatus includes a drum to draw in or let out a line and a motor and transmission coupled to the drum to apply a torque thereto. The transmission includes at least one stage of gearing to reduce a gear ratio of the motor relative to the drum. A shaft couples the motor to the transmission and a locking mechanism selectively locks the shaft to prevent rotation of the drum. In certain embodiments, a braking mechanism may be provided in addition to the locking mechanism to slow the motor when the motor is not applying torque to the drum. This may slow the motor sufficiently to enable engagement of the locking mechanism. 1. An apparatus comprising:a drum to draw in or let out a line;a motor and transmission coupled to the drum to apply a torque thereto, the transmission comprising at least one stage of gearing to reduce a gear ratio of the motor relative to the drum;a shaft coupling the motor to the transmission; anda locking mechanism to selectively lock the shaft to prevent rotation of the drum.2. The apparatus of claim 1 , wherein the locking mechanism comprises at least one locking feature coupled to the shaft.3. The apparatus of claim 2 , wherein the locking mechanism further comprises a key to prevent rotation of the shaft upon engagement of the at least one locking feature.4. The apparatus of claim 3 , wherein the at least one locking feature comprises a shaped surface on the shaft and the key comprises a shaped aperture to interlock with the shaped surface on the shaft.5. The apparatus of claim 4 , wherein the shaped surface comprises a pair of flats on the shaft claim 4 , and the key interlocks with the flats to prevent rotation of the shaft.6. The apparatus of claim 3 , further comprising an actuator to move the key to selectively engage and disengage the at least one locking feature.7. The apparatus of claim 6 , wherein the actuator is a solenoid.8. The apparatus of claim 6 , wherein the actuator causes the key to engage the at least one locking feature ...

WINCH WITH MULTI-POSITION CLUTCH MECHANISM

A winch including a drive motor, a cable drum, and a gear train assembly coupled to the drive motor and including a planetary gear set having a ring gear positioned in a gear train housing. The gear train housing including a radial clutch mount and an axial clutch mount. A clutch mechanism is selectively positionable at the radial clutch mount, in a first configuration, and the axial clutch mount, in a second configuration. The clutch mechanism is operable to selectively lock and unlock the ring gear to the gear train housing, thereby engaging and disengaging the cable drum from the gear train assembly. 1. A winch , comprising:a cable drum;a drive motor;a gear train assembly coupled to the drive motor,a gear train housing including a radial clutch mount and an axial clutch mount; anda clutch mechanism operable to engage and disengage the cable drum from the gear train assembly, the clutch mechanism being selectively positionable at the radial clutch mount, in a first configuration and the axial clutch mount, in a second configuration.2. The winch of claim 1 , further comprising a cover plate selectively positionable at the axial clutch mount claim 1 , in the first configuration and the radial clutch mount claim 1 , in the second configuration.3. The winch of claim 1 , wherein the clutch mechanism includes a handle positioned to be manually actuated to engage and disengage the cable drum from the gear train assembly.4. The winch of claim 1 , wherein the clutch mechanism includes a pneumatic actuator positioned to engage and disengage the cable drum from the gear train assembly.5. The winch of claim 1 , wherein the clutch mechanism includes a cable positioned to remotely engage and disengage the cable drum from the gear train assembly.6. A winch claim 1 , comprising:a drive motor;a cable drum;a gear train housing including a radial clutch mount and an axial clutch mount;a gear train assembly coupled to the drive motor and including a planetary gear set having a ring ...

Device for Controlling a Brake of a Winch Drum Mounted On a Drilling Rig and Method for Controlling Such a Device

A device for controlling a brake of a drum of a draw-works equipping a drilling rig operating a drill tool in a borehole, which device comprises a brake lever having a first end connected mechanically to brake bands designed to act on the drum and a second end provided with a first brake control handle. The device further comprises actuation means configured to be controlled and arranged to act mechanically on the brake lever, and a second brake control handle arranged to servo-control said actuation means. 116-. (canceled)17. A device for controlling a brake of a drum of a draw-works equipping a drilling rig operating a drill tool in a borehole , the device comprising:a brake lever having a first end connected mechanically to brake bands designed to act on said drum and a second end provided with a first brake control handle, said device further comprising actuation means configured to be controlled and arranged to act mechanically on said brake lever, and a second brake control handle arranged to servo-control said actuation means.18. The device according to claim 17 , further comprising electronic means configured to control the actuation means claim 17 , on the basis of a control signal emitted by the second brake control handle and/or of information on weight conditions to which the drill tool is subjected.19. The device according to claim 18 , wherein the second control handle incorporates an extensometer sensor arranged to generate a handle control signal sensitive to the pressure exerted on said handle by the hand of an operator.20. The device according to claim 19 , wherein the electronic control means are arranged to servo-control the actuation means to a setpoint thrust force in a braking mode.21. The device according to claim 20 , wherein the electronic control means are arranged to servo-control the actuation means to a setpoint position of the brake lever.22. The device according to claim 21 , wherein the actuation means are powered via an ...

Brake for elevator and a replacement method of damper of the brake for elevator

The present invention provides an elevator brake and a cushion replacement method of the elevator brake, and relates to the field of elevator braking technologies. The elevator brake of the present invention includes a first block and a second block that collide with each other during braking, and a cushion located between the first block and the second block, and further includes a cushion support detachably mounted on the first block or the second block, where the cushion is disposed on the cushion support. A cushion of the elevator brake in the present invention can be replaced without disassembling the whole elevator brake.

RESCUE APPARATUS AND AN ELEVATOR

The invention concerns a rescue apparatus, an elevator as well as a retrofit kit. The rescue apparatus comprises a brake control unit having input terminals for connecting to a power supply, output terminals for connecting to a magnetizing coil of an electromagnetic brake, at least one controllable brake opening switch associated with at least one of the input terminals and adapted, in an open state, to prevent supply of current from the power supply to the magnetizing coil and, in a closed state, to allow supply of current from the power supply to the magnetizing coil. The rescue apparatus further comprises a control cable comprising one or more control signal wires and a remote control panel coupled via the control cable to the brake control unit. 1. A rescue apparatus for an elevator , the rescue apparatus comprising: input terminals for connecting to a power supply;', 'output terminals for connecting to a magnetizing coil of an electromagnetic brake; and', 'at least one controllable brake opening switch associated with at least one of the input terminals and adapted, in an open state, to prevent supply of current from the power supply to the magnetizing coil and, in a closed state, to allow supply of current from the power supply to the magnetizing;, 'a brake control unit comprisinga control cable comprising one or more control signal wires wires; anda remote control panel coupled via the control cable to the brake control unit,wherein the remote control panel comprises a manually operated drive switch coupled via the control signal wire to the control pole of the brake opening switch.2. The rescue apparatus according to claim 1 , wherein the brake control unit comprises two controllable brake opening switches claim 1 , both of the two controllable brake opening switches being adapted to prevent supply of current to the magnetizing coil independent of each other claim 1 , andwherein the remote control panel comprises two manually operated drive switches, one of ...

WINCH WITH MULTI-POSITION CLUTCH MECHANISM

A winch including a drive motor, a cable drum, and a gear train assembly coupled to the drive motor and including a planetary gear set having a ring gear positioned in a gear train housing. The gear train housing including a radial clutch mount and an axial clutch mount. A clutch mechanism is selectively positionable at the radial clutch mount, in a first configuration, and the axial clutch mount, in a second configuration. The clutch mechanism is operable to selectively lock and unlock the ring gear to the gear train housing, thereby engaging and disengaging the cable drum from the gear train assembly. 1. A winch , comprising:a cable drum;a drive motor;a gear train assembly coupled to the drive motor;a gear train housing including a radial clutch mount and an axial clutch mount; anda clutch mechanism operable to engage and disengage the cable drum from the gear train assembly, the clutch mechanism being selectively positionable at the radial clutch mount, in a first configuration and the axial clutch mount, in a second configuration.2. The winch of claim 1 , further comprising a cover plate selectively positionable at the axial clutch mount claim 1 , in the first configuration and the radial clutch mount claim 1 , in the second configuration.3. The winch of claim 1 , wherein the clutch mechanism includes a handle positioned to be manually actuated to engage and disengage the cable drum from the gear train assembly.4. The winch of claim 1 , wherein the clutch mechanism includes a pneumatic actuator positioned to engage and disengage the cable drum from the gear train assembly.5. The winch of claim 1 , wherein the clutch mechanism includes a cable positioned to remotely engage and disengage the cable drum from the gear train assembly.6. A winch claim 1 , comprising:a drive motor;a cable drum;a gear train housing including a radial clutch mount and an axial clutch mount;a gear train assembly coupled to the drive motor and including a planetary gear set having a ring ...

BRAKE, AND ELEVATOR SYSTEM

A brake, which includes a frame part of the brake, an armature part movably supported on the frame part, and attached to the frame part a limit switch, the switching state of which changes when movement is exerted on the limit switch in the operating direction of the limit switch. The brake also includes a measuring pin that is movably supported on the frame part of the brake and that is separate from the armature part, which measuring pin is connected to the limit switch. 1. A brake , comprising:a frame part of the brake;an armature part movably supported on the frame part, the armature part being configured to be movable between a braking position and a releasing position;a limit switch attached to the frame part, a switching state of the limit switch changing at an operating point of the limit switch; anda measuring pin movably supported on the frame part of the brake, the measuring pin being separate from the armature part and being connected to the limit switch, and being configured to engage by movement of the armature part in an operating direction of the limit switch, in an operating range between the braking position and the releasing position,wherein, in the operating range, the operating point of the limit switch is configured to divide into sections of the operating range, the switching state of the limit switch in a first section indicating the braking position and the switching state of the limit switch in a second section indicating the releasing position, andwherein both the measuring pin and the limit switch are disposed in a space in the frame part of the brake.2. The brake according to claim 1 , wherein the measuring pin is configured to engage with a detent surface of an air gap of the brake on the armature part side.3. The brake according to claim 1 , wherein the brake comprises a thruster spring fitted between the frame part of the brake and the measuring pin for engaging the measuring pin with the armature part.4. The brake according to claim ...

ELEVATOR BRAKE RELEASE MONITORING

Brake release sensors for an elevator can be replaced by an arrangement wherein the brake release is determined from the force caused by the brake. This is achieved by providing measuring device for measuring the weight of an elevator car between the brake and the motor body so that the weight of the elevator car is measured only when the brake is on. 1. A method for detecting release of a brake of an elevator , which method comprises:using a measuring device for measuring weight of an elevator car from a rotating shaft of part a traction sheave of said elevator when the brake of said elevator is closed;generating a brake release signal;receiving a value from said measuring device;comparing said received value to a reference value; anddetecting a brake failure when said received value deviates from said reference value.2. The method according to claim 1 , the method further comprises transmitting an error message as a response to said detected failure.3. The method according to claim 1 , the method further comprises moving said elevator to the next floor responsive to detecting the brake failure.4. The method according to claim 1 , wherein the method further comprises preventing use of said elevator after detecting a brake failure.5. The method according to claim 1 , wherein said reference value is the value that corresponds with the situation wherein said measuring device is unloaded.6. The method according to claim 5 , wherein said value is zero.7. The method according to claim 1 , wherein determining said reference value by driving the elevator to both directions and accepting the value indicated by the measurement device as a reference value when the measurement device indicates same value to both directions.8. A computer program for a computing device comprising code adapted to cause the method according to when executed on a data-processing system.9. An apparatus comprising:processor;{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'at least one memory; ...

SYSTEM AND METHOD FOR MONITORING ELEVATOR BRAKE CAPABILITY

An elevator brake monitoring system includes a car (); a machine () configured to actuate movement of the car; and a brake () configured to decelerate the car; wherein the system is configured to operate the machine to move the car at a pre-determined speed, engage the brake, measure a braking parameter and compare the measured braking parameter to a reference braking parameter. 1. An elevator brake monitoring system comprising:a car;a machine configured to actuate movement of the car; anda brake configured to decelerate the car, wherein the system is configured to operate the machine to move the car at a pre-determined speed, engage the brake, measure a braking parameter and compare the measured braking parameter to a reference braking parameter.2. The elevator brake monitoring system of claim 1 , wherein the measured braking parameter is braking distance.3. The elevator brake monitoring system of claim 2 , further comprising a position encoder claim 2 , the system configured to determine the braking distance in response to the position encoder.4. The elevator brake monitoring system of claim 1 , wherein the measured braking parameter is braking time.5. The elevator brake monitoring system of claim 1 , wherein the system is configured to determine a braking capability of the brake in response to comparing the measured braking parameter to the reference braking parameter.6. The elevator brake monitoring system of claim 5 , wherein the braking capability is unsatisfactory when the measured braking parameter exceeds the reference braking parameter.7. The elevator brake monitoring system of claim 5 , wherein the braking capability is satisfactory when the measured braking parameter is below the reference braking parameter.8. The elevator brake monitoring system of claim 5 , wherein the braking capability is stored locally or in an external service system.9. The elevator brake monitoring system of claim 1 , wherein the measured braking parameter is stored locally or in ...

ANTI-FALL MECHANISM FOR LIFTING EQUIPMENT

A lifting equipment is provided. The lifting equipment may include a working assembly, a safety assembly, and a shaft assembly. The working assembly may include a working fastener. The working fastener may be spirally connected to the shaft assembly. When the shaft assembly rotates the working fastener may move along the shaft assembly. The safety assembly may comprise a limiting component. The limiting component may be connected to the working fastener. A portion of the safety assembly may be in located a space between the limiting component and the working assembly. 128-. (canceled)29. A system comprising:a working assembly including a working fastener;a safety assembly including a safety fastener;a shaft assembly; and the working assembly is configured to support the load lifting mechanism when the working assembly is coupled to the load lifting mechanism;', 'the safety assembly is configured to prevent the load lifting mechanism from falling when the working assembly fails;', 'a first connecting portion of the working fastener is connected to the shaft assembly, and a first fastener portion of the working fastener is connected to the first fastener surface; and', 'a second connecting portion of the safety fastener is connected to the shaft assembly., 'a load lifting mechanism including a first fastener surface, wherein30. The system of claim 29 , wherein the load lifting mechanism further includes a second fastener surface and the safety fastener is connected to the load lifting mechanism at the second fastener surface.31. The system of claim 30 , wherein the load lifting mechanism further includes a countersink on the second fastener surface.32. The system of claim 31 , wherein the load lifting mechanism further includes a locking component claim 31 , whereinthe locking component is in the countersink when the safety fastener is connected to the load lifting mechanism at the second fastener surface; andthe locking components is out of the countersink when the ...

BRAKE, AND ELEVATOR SYSTEM

A brake, which includes a frame part of the brake, an armature part movably supported on the frame part, and attached to the frame part a limit switch, the switching state of which changes when movement is exerted on the limit switch in the operating direction of the limit switch. The brake also includes a measuring pin that is movably supported on the frame part of the brake and that is separate from the armature part, which measuring pin is connected to the limit switch. 1. A brake , comprising:a frame part of the brake;an armature part movably supported on the frame part, the armature part being configured to be movable between a braking position and a releasing position;a limit switch attached to the frame part, the switching state of the limit switch changing at the operating point of the limit switch; anda measuring pin movably supported on the frame part of the brake, the measuring pin being separate from the armature part and being connected to the limit switch, and and being configured to engage with the movement of the armature part in the operating direction of the limit switch, in the operating range between a braking position and a releasing position,wherein in the operating range, the operating point of the limit switch is configured to divide into sections of the operating range, the switching state of the limit switch in the first section indicating a braking position and the switching state of the limit switch in the second section indicating a releasing position.2. he brake according to claim 1 , wherein in the frame part of the brake is a space for the measuring pin.3. The brake according to claim 2 , wherein both the measuring pin and the limit switch are disposed in the aforementioned space in the frame part of the brake.4. The brake according to claim 2 , wherein the space is inside the frame part claim 2 , and the measuring pin is configured to engage with the detent surface of the air gap of the brake claim 2 , on the armature part side.5. ...

Electric rotating machine with a brake which interact with two opposite surfaces

The electric machine includes a rotor rotating about an axis of rotation, that comprises a tubular end wall defining two opposite braking surfaces. The electric machine has a stator, and a brake comprising two brake pads for bearing simultaneously against braking surfaces, in a braking configuration. Independent claims are included for the following: (1) method for driving lift cabin or winch; and (2) electromagnetic brake.

Procede et dispositif de controle du bon fonctionnement d'un frein a machoires.

Method of and device for checking operation of shoe brake

FIELD: mechanical engineering; brake systems. SUBSTANCE: device for checking operation of shoe brake and wear of friction linings has shoe position pickups, friction lining wear pickups and relay operating in case of trouble to generate signal making vehicle stop when position and wear pickups detect jamming of shoes or intolerable wear of linings. Method includes automatic modelling of defective position of shoes and wear of friction linings, carried out in cycles and constantly, to check operation of relay in case of trouble, and also data processing means. Provision is made for automatic resetting of relay after each operation on modelling of defective state and wear. EFFECT: improved quality of checking. 4 cl, 2 dwg Оз 0с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ” 2 081 013. (51) МПК 13) Сл В 60 Т 17/22, Е 16 0 66/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5010930/28, 06.03.1992 (30) Приоритет: 07.03.1991 ЕК 91-02737 (46) Дата публикации: 10.06.1997 (56) Ссылки: 1. Патент США М 3800276, кл. В 60 Т 17/22, 1974. 2. Патент Франции М 2227161, кл. В бОТ 17/22, 1974. 3. Авторское свидетельство СССР М 695815, кл. В 6бОТ 17/22, 1979. (71) Заявитель: Отис Иливейтор Компани (ЦЗ) (72) Изобретатель: Ален Верийон[ЕК], Жан Луи Кавалло[ЕК] (73) Патентообладатель: Отис Иливейтор Компани (ЦЗ) (54) СПОСОБ КОНТРОЛЯ РАБОТЫ КОЛОДОЧНОГО ТОРМОЗА И УСТРОЙСТВО ДЛЯ ОСУЩЕСТВЛЕНИЯ КОНТРОЛЯ РАБОТЫ КОЛОДОЧНОГО ТОРМОЗА (57) Реферат: Использование: для контроля работы колодочного тормоза. Сущность изобретения: устройство контроля работы колодочного тормоза и степени износа фрикционных накладок снабжено датчиками для определения положения колодок, датчиками для определения износа фрикционных накладок, реле, срабатывающим при дефекте и способным подавать сигнал остановки машины, когда датчики положения и износа обнаруживают недостаточное высвобождение колодок или износ накладок. Способ включает автоматическое моделирование - ...

Armature movement detection apparatus and armature position estimation apparatus for an elevator brake

엘리베이터 브레이크의 접극자 동작 검출 장치에 있어서는 브레이크 코일에 통전 전류가 전류 검출기에 의해 검출된다. 브레이크 코일에 인가 전압은 전압 검출기에 의해 검출된다. 전자석을 여자하기 위한 정전류 구동의 이상 전압 강하는 전압 변동 검출기에 의해 검출된다. 동작 검출기는 유도 기전력 및 순간 전압을 설정된 문턱값 레벨과 비교하는 동시에, 전압 변동 검출기에 의해 이상 전압 아래가 검출되었는지의 여부를 판단하는 것에 의해 접극자의 전자석에 대한 상대적 동작을 검출한다. In the pole motion detection device of an elevator brake, an energizing current is detected by a current detector in a brake coil. The voltage applied to the brake coil is detected by the voltage detector. The abnormal voltage drop of the constant current drive for exciting the electromagnet is detected by the voltage fluctuation detector. The motion detector detects the relative motion of the pole against the electromagnet by comparing the induced electromotive force and the instantaneous voltage with a set threshold level and determining whether or not the abnormal voltage is detected by the voltage fluctuation detector.

Traction machine for elevator

본 발명은 부피 및 중량을 최소화하고 구조를 간단히 함으로써 설치공간의 제약을 최소화할 뿐만 아니라 안정성을 대폭 향상시킬 수 있으며, 고장률과 소음 및 진동을 대폭 저감시킬 수 있도록 한 엘리베이터용 권상기에 관한 것이다. 상기 엘리베이터용 권상기는 베이스 프레임 상부에 설치 된 지지 브래킷에 고정 설치되되 외주면에 코일이 권취되어 있는 고정자; 상기 고정자에 권취되어 있는 코일과 내주면에 일정 간격을 두고 고정 설치된 다수개의 영구자석이 일정 간격을 유지하도록 배치되며, 외주면에는 다수개의 그루브가 형성됨으로써 권상 시브 겸용으로 사용할 수 있도록 구성되어 상기 고정자에 권취된 코일에 전원이 인가되면 상기 코일과 영구자석 사이에 발생되는 회전력에 의해 상기 고정자를 중심으로 회전 가능하도록 설치된 회전자; 상기 회전자 보다 큰 반경을 가지도록 회전자의 일측 끝단부에 돌출되어 상기 회전자와 일체로 형성된 디스크 휠; 및 상기 디스크 휠의 양측에 장착되어 전원의 차단 시 상기 디스크 휠과 마찰됨으로써 상기 회전자를 정지시키는 한 쌍의 디스크 브레이크로 구성된다. The present invention relates to an elevator hoisting machine capable of minimizing the constraints of the installation space by minimizing the volume and weight and simplifying the structure, as well as greatly improving the stability, and greatly reducing the failure rate, noise and vibration. The elevator hoisting machine includes a stator fixedly installed on a support bracket installed on an upper portion of the base frame, wherein a coil is wound on an outer circumferential surface thereof; Coils wound around the stator and a plurality of permanent magnets fixed at regular intervals on the inner circumferential surface are arranged to maintain a constant interval, and a plurality of grooves are formed on the outer circumferential surface to be used as a hoisting sieve combined and wound on the stator. A rotor installed to rotate about the stator by a rotational force generated between the coil and the permanent magnet when power is applied to the coil; A disk wheel protruding from one end of the rotor to have a radius greater than that of the rotor and integrally formed with the rotor; And a pair of disc brakes mounted on both sides of the disc wheel to stop the rotor by friction with the disc wheel when power is cut off. 엘리베이터, 권상기, 권상 시브, 디스크 브레이크, 회전자 Elevator, hoist, hoisting sheave, disc brake, rotor

Brake system of elevator

A brake apparatus for an elevator includes a brake apparatus main body having a brake coil, and a discharge circuit connected in parallel to the brake coil. The brake apparatus main body serves to apply a braking force to a car by stopping the supply of electric power to the brake coil and release the braking force applied to the car by supplying electric power to the brake coil. The discharge circuit attenuates a current of the brake coil when the supply of electric power to the brake coil is stopped. In addition, the discharge circuit has a discharge parallel part that includes a resistor, and an overvoltage absorber which is connected in parallel to the resistor for maintaining a voltage impressed on the resistor within a predetermined range.

Hoist for elevator and brake system

제동토크가 브레이크 드럼의 회전방향에 의존하지 않고, 소형화할 수 있는 브레이크 장치 및 엘리베이터용 권상기를 얻는 것을 목적으로 한다. 이 목적을 달성하기 위해서, 본 발명의 브레이크 장치 및 엘리베이터용 권상기는 가동철심을 전자석 코일로 흡인하여 누름스프링으로 가압하는 고정철심을 구비한 전자석 기구와, 가동철심에 장착되어 브레이크 드럼을 제동하는 제동부재를 구비하고, 가동철심을 브레이크 드럼의 회전방향의 접선방향에 따른 축심에 대해서 회전지지하며, 고정철심에 의해서 회전시켜 제동부재를 브레이크 드럼에 대해서 가압 및 이탈시킨다. It is an object of the present invention to obtain a brake device and an elevator hoist that can be miniaturized without having a braking torque depending on the rotational direction of the brake drum. In order to achieve this object, the brake device and the elevator hoist of the present invention are provided with an electromagnet mechanism having a fixed iron core for sucking the movable iron core with an electromagnet coil and pressurizing it with a pressing spring, and braking for braking the brake drum mounted on the movable iron core. A member is provided, the movable iron core is rotatably supported with respect to the shaft core along the tangential direction of the rotational direction of the brake drum, and is rotated by the fixed iron core to press and release the brake member against the brake drum.

Elevator hoist brake and elevator hoist

Method for monitoring a brake system in an elevator system and corresponding brake monitor for an elevator system

本发明涉及一种制动监视器(100)，用于监控电梯设备(10)的制动系统(13)，所述电梯设备除了制动系统(13)外还具有驱动装置(11)和驱动控制装置(12)。所述制动监视器(100)包括第一制动信号输入端(KB)，用于将制动监视器(100)与制动系统(13)的第一制动接触件电连接。所述制动监视器还包括行驶信号输入端(AF)，用于将制动监视器(100)与电梯控制装置(12)的电气行驶信号导线(12.1)相连接。所述制动监视器还包括供电装置(101)、微处理器(102)和继电器电路(103)。所述继电器电路(103)的布线方式为，能够激活集电器电路，从而中断电梯设备(10)的安全电路(20)或驱动控制装置(12)的控制电压，从而停下电梯设备(10)。

Brake for elevator

【課題】動作および安全の両面において最も効果的な特性を有する制動装置を提供する。 【解決手段】セルフセンタリング制動装置１において、制動モーメントは、通常の動作の場合と制動装置半体３が故障した場合とで同じに維持される。制動装置１は、断面がＵ字型のハウジング２からなり、Ｕ字の足部分は制動装置半体３に対応する。制動装置半体３は同一の構成である。能動的な制動ライニング４および受動的な制動ライニング５は、各制動装置半体３に設けられる。能動的な制動ライニング４は、圧縮ばね６のばね力によって負荷を受ける。制動装置半体３が故障した場合、受動的な制動ライニング５が、能動的な制動ライニング４の機能を取って代わる。 【選択図】 図１

Elevator with a movable elevator car

本发明涉及一种电梯，其包括在提升路径中驱动至少一个电梯轿厢的电梯电动机，电梯电动机经由通过电梯的控制装置(40)控制的变频器而被驱动。变频器包括整流桥和逆变桥以及在其间的DC链路(DC+，DC‑)。电梯还包括作用在与电梯电动机的转子一起旋转的制动元件上的至少一个电梯制动器，电梯制动器经由连接到变频器的DC链路(DC+，DC‑)的制动驱动器(11)而被驱动，并且包括DC/DC转换器(10)，其具有连接到DC链路(DC+，DC‑)的初级侧和连接到制动电路(20)的次级侧，制动电路(20)包括电梯制动器的至少一个制动线圈(12)和至少一个整流元件(14，16)。

Brake for an elevator

在本自动定心的制动器(1)中，不管是在正常工作时，还是在一个制动半件(3)失效时，制动力矩始终保持在相同状态。制动器(1)由一个机壳(2)构成，所述机壳的截面是U形的，其中U翼缘与制动半件(3)相符。制动半件(3)具有相同的结构。为每个制动半件(3)设有一个主动制动垫(4)和一个被动制动垫(5)。采用压缩弹簧(6)的弹簧力对主动制动垫(4)加载。在一个制动半件(3)失效时转由被动制动垫(5)承担原由主动制动垫(4)承担的功能。

Direct-acting drum brake device for elevator

엘리베이터의 직동식 드럼 브레이크 장치에 있어서, 가동철심에는 브레이크 슈가 탑재되어 있다. 브레이크 슈에는 브레이크 드럼에 접리되는 라이닝이 마련되어 있다. 브레이크 슈는 가동철심에 대해서 브레이크 드럼에 접리하는 방향에 직각 또한 브레이크 드럼의 축방향에 직각인 방향으로 소정의 범위 내에서 슬라이딩 가능하다. 가동철심에는 브레이크 슈를 가동철심 측으로 밀어붙여 유지하는 탄성체가 마련되어 있다. In an elevator drum brake device of an elevator, a brake shoe is mounted on a movable iron core. The brake shoe is provided with a lining that is folded to the brake drum. The brake shoe is slidable within a predetermined range in a direction perpendicular to the direction in which the brake iron is folded to the brake drum and perpendicular to the axial direction of the brake drum. The movable core is provided with an elastic body for pushing and holding the brake shoe toward the movable core side.

Disk brake for lift

FIELD: mechanical engineering, lift disk brakes. SUBSTANCE: disk brake for lift has rotating disk and non-rotating plate moved towards disk under action of large number of springs and moved away from disk by means of electromagnet. Clearances between plate and disk and between electromagnet and plate are adjusted by means of adjustable support of spring. EFFECT: enhanced operation reliability. 3 cl, 1 dwg БбУДЭ9ЭУОсС ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ “” 2046 749‘ (51) МПК 13) Сл В 66 0 5/14 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5011222/10, 06.04.1992 (30) Приоритет: 15.04.1991 Ш$ 685390 (46) Дата публикации: 27.10.1995 (56) Ссылки: Авторское свидетельство СССР М 540810, кл. В 660 5/14, 1976. (71) Заявитель: Отис Иливейтор Компани (ЦЗ) (72) Изобретатель: Альфонсо Гарридо[ЕЗ], Антонио СанчеЕ$], Хозе М.Сандоваль[Е$] , Хозе Севиллеха[Е$] (73) Патентообладатель: Отис Иливейтор Компани (ЦЗ) (54) ДИСКОВЫЙ ТОРМОЗ ПОДЪЕМНИКА (57) Реферат: Использование: в машиностроения, в частности в дисковом тормозе подъемника. Сущность изобретения: дисковый тормоз подъемника содержит вращающийся диск и невращающуюся плиту, перемещающуюся к диску под действием большого числа пружин и отводимую от диска с электромагнита. Зазоры между плитой и диском, а также между электромагнитом и ПЛИТОЙ регулируются С ПОМОЩЬЮ регулируемой опоры пружины. 2 з. п. ф-лы, 1 ИЛ. ПОМОЩЬЮ 2046749 С1 КО БбУДЭ9ЭУОсС ПЧ Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 13) ВИ “” 2046 749‘ (51) 1. СИ. В 66бр 5/14 СЛ 12) АВЗТКАСТ ОЕ 1МУЕМТОМ (21), (22) АррИсаНоп: 5011222/10, 06.04.1992 (30) Рпогу: 15.04.1991 4$ 685390 (46) Рае ог рибИсаНоп: 27.10.1995 (71) АррИсапе: ОН$ Шуейог Котрап! (ЦЗ) (72) пуетщог. — АГюпзо Сагпао[ЕЗ], Атопюо запспез[Е$], КПоге М.Запаома![Е$] , Клоге ЗемШекла[Е$] (73) Ргорпеюг: ОН$ Шуейог Котрап! (ЦЗ) (54) 01$К ВКАКЕ РОК МЕТ (57) АБзасЕ: НЕГО: теспатса! епдтеетпа, Ш а5$к ргакез. эзОВЗТАМСЕ: @15$К Бгаке Тог Ш паз гобайпа 95$К апа ...

Domestic building lift unit has brake units with axes aligned with drive shaft and connected by coupling units

The domestic building lift unit (8) has drive (1) and brake unit (2) shaft (3) geometric axes (9) in line or intersecting the drive pinion (7) drive shaft (6) and connected by coupling units (5).

Lift drive and method for driving and detaining a lift car, a corresponding method and a braking device, and method for decelerating and detaining a lift car, and an associated method

A lift drive (20) serves to drive and to detain a lift car, and it essentially contains a traction wheel (22) for transmitting a driving or detaining force to the lift car, a motor (21) for driving the traction wheel (22), and a braking arrangement for detaining the traction wheel (22). A drive shaft (2) connects the traction wheel, the motor and the braking arrangement to one another. The braking arrangement contains at least two braking devices (24.1, 24.2), wherein, according to the invention, the traction wheel (22) is arranged between the braking devices (24.1, 24.2). This is advantageous, since the braking torques (MB1,2) which are transmitted by the traction wheel (22) to the braking devices (24.1, 24.2) are divided. In the case of an advantageous, symmetrical division of the braking devices (24.1, 24.2), half on either side of the traction wheel, a torque which is to be transmitted is reduced by half in the drive shaft (2). A risk of failure or risk of breakage of the drive shaft (2) is thereby significantly reduced. In addition, during a possible failure of the drive shaft (2), there continues to be a braking function, since the braking devices (24.1, 24.2) are distributed on both sides of the traction wheel (22).

Elevator braking apparatus

一种电梯制动装置，其具备具有制动线圈的制动装置主体和与制动线圈并联连接的放电电路。制动装置主体通过停止对制动线圈的供电来对轿厢施加制动力，通过对制动线圈进行供电来解除提供给轿厢的制动力。在停止了对制动线圈的供电时，放电电路使制动线圈的电流衰减。另外，放电电路具有放电并列部，该放电并列部包括电阻和过电压吸收元件，该过电压吸收元件与电阻并联连接，用于把施加给电阻的电压维持在规定的范围内。

A emergency stopping apparatus for batten of stage

바튼이 무대에서 과속으로 승강되거나, 낙하시 강제로 정지시키는 무대용 바튼 과속낙하방지장치에 관한 것으로서, 무대의 프레임(2)에 구비되어 바튼(1)을 승강시키는 구동모터(3)와, 상기 바튼(1)에 연결된 로프(4)가 감겨지고, 상기 구동모터 (3)에 의해 회전하는 드럼(5)과, 상기 드럼(5)과 동축으로 체결되고, 상기 드럼(5)의 과속시 회전반경이 커지는 제1 조속기(20)와, 상기 제1 조속기(20)의 작동시, 상기 제1 조속기(20)와 치합하여 상기 구동모터(3)로 공급되는 전원이 차단되도록 하는 신호를 출력하는 과속감지부(30)를 포함한다. A barton overspeed fall prevention device for a stage, in which a barton is raised or lowered on a stage by speed, or forcibly stopped when falling, and the driving motor (3) provided in the frame (2) of the stage to lift the barton (1), and The rope 4 connected to the barton 1 is wound and fastened coaxially with the drum 5 which is rotated by the driving motor 3 and the drum 5, and when the drum 5 is overspeeded. When the first governor 20 having a larger radius and the first governor 20 operate, the first governor 20 is engaged with the first governor 20 to output a signal to cut off the power supplied to the driving motor 3. It includes a speed detecting unit 30. 무대, 바튼, 정지, 추락, 조속기, 쐐기, 연동 Stage, barton, stop, crash, governor, wedge, linkage

Thin hoist for elevator

一种电梯用薄形卷扬机，可减少结构零件个数、减小宽度方向的厚度，实现薄型化和轻量化、提高设置场所的自由度且可缩小升降通道水平面积。该电梯用薄形卷扬机包括：卷扬机的基体(202)；设置在基体上的主轴(217)；被主轴轴保持的旋转体(219)；在旋转体上形成的驱动绳轮(220)；设置在基体上的定子(218)；在旋转体的外周上与定子相对配置、与定子一起构成电动机的电枢(221)；在直径比驱动绳轮的外形大的旋转体上形成的制动面(291)；与制动面相对配置、被推向制动面进行制动动作的制动器(222)。做成将驱动绳轮与基体底面(204)接近配置、所述基体底面与支承旋转体的主轴的轴承支承部(205)连接、由基体的轴承支承部对旋转体的主轴进行悬臂支承的结构。

Hoist for elevator

在电梯用曳引机中，通过制动部来对驱动绳轮的旋转进行制动。制动部包括：制动盘，其与驱动绳轮一体地旋转；制动部主体，其通过夹持制动盘来对制动盘的旋转进行制动。制动盘配置在驱动绳轮的径向外侧。另外，驱动盘具有相互对置的第一制动面和第二制动面。制动部主体包括：与第一制动面接触、分离的第一制动件，以及与第二制动面接触、分离的第二制动件。

ROTATING ELECTRIC MACHINE COMPRISING A BRAKE COMBINING WITH AT LEAST ONE BRAKING SURFACE EXTENDING NOT FULLY PERPENDICULAR TO THE AXIS OF ROTATION

La présente invention concerne une machine électrique tournante (1) comportant :- un stator,- un rotor (3) ayant un axe de rotation (X),- un frein électromagnétique (40) disposé de manière à s'appliquer en configuration de freinage sur au moins une surface de freinage (61) tournant avec le rotor et s'étendant non entièrement perpendiculairement à l'axe de rotation (X), notamment au moins une surface de freinage cylindrique, conique, bi-conique ou torique d'axe confondu avec l'axe de rotation. The present invention relates to a rotating electrical machine (1) comprising: - a stator, - a rotor (3) having an axis of rotation (X), - an electromagnetic brake (40) arranged to apply in braking configuration on at least one braking surface (61) rotating with the rotor and extending not entirely perpendicular to the axis of rotation (X), in particular at least one cylindrical, conical, bi-conical or toric axis braking surface confused with the axis of rotation.

Rotary electric machine including a brake engaging two opposite braking surfaces

The present invention relates to a rotary electric machine comprising: a stator; a rotor having an axis of rotation, and comprising a tubular end wall defining two opposite braking surfaces; and at least one electromagnetic brake configured for bear simultaneously in a braking configuration against the braking surfaces.

Brake equipment for discs, belts and drums actuated by toggle lever drive system

The component to be braked (here a disc) has a fixed pad (5) on one side and a moving pad (4) on the other. The moving pad is actuated by a toggle lever (2). The linear drive system (3) e.g. magnet linear drive, acts through a vertical drive shaft (3W) linked to vertical bar attached to one end of the toggle lever, the horizontal movement of the lever being controlled by a bar (10) running in an horizontal channel (11).

Motor provided with a braking system

The present invention relates to a motor (1) comprising: a shaft (6) supporting a rotor, a pulley (5) driven by the shaft (6), at least one caliper brake (3) engaging with a wall (4) rotating with the pulley (5), and at least one axial brake (2).

Assembly of an electric machine and a brake

The machine (10) has an outer rotor (20) including a cable driving portion (22) and a shaft (21) made of milled steel. An electromagnetic brake (12) has a brake disk (13) driven by the shaft, and a stator (30) has windings (32) axially placed between the disk and the driving portion. The driving portion is a monoblock with the shaft or directly arranged on the shaft with a single mechanical interface. The driving portion has annular grooves (28) for driving cables made of Kevlar(RTM: aramid fiber).

Brake torque control

예시적인 브레이크 디바이스는 연계된 구성요소의 회전에 저항하는 제동력을 인가하도록 구성된 브레이크 요소를 포함한다. 장착 부재는 정지 표면에 브레이크 디바이스를 장착하도록 구성된다. 상기 장착 부재는 상기 브레이크 디바이스에 걸리는 토크에 응답하여 상기 정지 표면에 대해 적어도 부분적으로 이동가능하다. 센서는 상기 토크에 응답하여 상기 정지 표면에 대해 상기 장착 부재의 여하한의 이동과 연계된 힘의 표시를 제공한다. The exemplary brake device includes a brake element configured to apply a braking force that resists rotation of the associated component. The mounting member is configured to mount the brake device to the stationary surface. The mounting member is at least partially movable relative to the stop surface in response to the torque applied to the brake device. The sensor provides an indication of the force associated with any movement of the mounting member relative to the stationary surface in response to the torque.

Elevator and elevator brake

본 발명은 엘리베이터 및 엘리베이터 브레이크에 관한 것이다. 엘리베이터는 트랙션 시브(6)를 구비한 호이스팅 머신(5), 트랙션 시브의 회전 운동에 영향을 미치고 하나 이상의 브레이크 슈(12) 및 제동면(11a)을 구비하고 있는 브레이크(10), 및 가이드 레일(4)을 따라 이동하는 엘리베이터 카(1)에 고정되어 트랙션 시브(6)에 의해서 이동하는 호이스팅 로프(3)를 포함하고 있다. 엘리베이터 카(1)가 상승 이동할 때 비상 제동 상황에서, 브레이크(10)의 브레이크 슈(12)는 제동면(11a)의 회전 방향으로 이동하도록 배치되어 있다. 엘리베이터, 브레이크, 트랙션 시브, 비상 제동, 웨지편 The present invention relates to an elevator and an elevator brake. The elevator comprises a hoisting machine 5 with a traction sheave 6, a brake 10 which affects the rotational movement of the traction sheave and is provided with one or more brake shoes 12 and a braking surface 11a, and a guide. It comprises a hoisting rope 3 which is fixed to the elevator car 1 moving along the rail 4 and moved by the traction sheave 6. In the emergency braking situation when the elevator car 1 moves up, the brake shoe 12 of the brake 10 is arranged to move in the rotational direction of the braking surface 11a. Elevator, Brake, Traction Sheave, Emergency Braking, Wedge

Variable speed hoisting machine

Hoist for elevator

엘리베이터용 권상기에 있어서는, 브레이크부에 의해 구동 쉬브의 회전이 제동된다. 브레이크부는, 구동 쉬브와 일체로 회전되는 브레이크 디스크와, 브레이크 디스크를 사이에 두는 것에 의해 브레이크 디스크의 회전을 제동하는 브레이크부 본체를 가지고 있다. 브레이크 디스크는, 구동 쉬브의 지름 방향 외측에 배치되어 있다. 또, 브레이크 디스크는, 서로 대향하는 제 1 및 제 2 제동면을 가지고 있다. 브레이크부 본체는, 제 1 제동면에 접리(接離)되는 제 1 제동편과, 제 2 제동면에 접리되는 제 2 제동편을 가지고 있다. In an elevator hoisting machine, rotation of the drive sheave is braked by the brake unit. The brake unit has a brake disc that is integrally rotated with the drive sheave and a brake body that brakes rotation of the brake disc by sandwiching the brake disc. The brake disc is disposed outside the radial direction of the drive sheave. In addition, the brake disc has first and second braking surfaces that face each other. The brake unit body has a first braking piece that is folded to the first braking surface, and a second braking piece that is folded to the second braking surface.

Torque moment control during braking

FIELD: transport. SUBSTANCE: invention relates to elevators and is intended to use engine torque moment for unloading brake till brake is lifted at the beginning of elevator movement. Elevator (20) contains body, engine (32), traction sheave (28), braking device (36), mounting element, sensor. During brake control the force moving brake mounting element is recorded, determination is performed whether the recorded force is within range corresponding to permissible value of brake torque moment, indication is provided if the force is out of specified range. EFFECT: unloading brake till brake is lifted at the beginning of elevator movement. 22 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 484 004 (13) C2 (51) МПК B66B 5/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011132276/11, 10.03.2009 (24) Дата начала отсчета срока действия патента: 10.03.2009 (73) Патентообладатель(и): ОТИС ЭЛЕВЭЙТОР КОМПАНИ (US) (45) Опубликовано: 10.06.2013 Бюл. № 16 2 4 8 4 0 0 4 (56) Список документов, цитированных в отчете о поиске: JP 08-310371, 26.11.1996. JP 64-028060 А, 30.01.1989. RU 2126335 С1, 20.02.1999. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 10.10.2011 (86) Заявка PCT: US 2009/036622 (10.03.2009) 2 4 8 4 0 0 4 R U Адрес для переписки: 190000, Санкт-Петербург, ВОХ-1125, ПАТЕНТИКА C 2 C 2 (87) Публикация заявки РСТ: WO 2010/104502 (16.09.2010) (54) УПРАВЛЕНИЕ КРУТЯЩИМ МОМЕНТОМ ПРИ ТОРМОЖЕНИИ (57) Реферат: Изобретение относится к области подъемников и предназначено для использования крутящего момента двигателя для разгрузки тормоза до подъема тормоза в начале движения подъемника. Подъемное устройство (20) содержит корпус, двигатель (32), канатоведущий шкив (28), тормозное устройство (36), монтажный элемент, датчик. При контроле тормоза регистрируют силу, перемещающую тормозной монтажный элемент, определяют, находится ли зарегистрированная сила в диапазоне, соответствующем допустимой ...

Elevators and elevator brakes

Brake device and elevator hoisting machine using the same

ブレーキ装置において、固定部と可動部との間には、撓性材料により構成された緩衝部材が配置されている。固定部及び可動部の少なくともいずれか一方である緩衝部材保持部には、緩衝部材を収容し保持する収容凹部が設けられている。収容凹部の側面の一部には、緩衝部材保持部の外部に連通した開口部が設けられている。緩衝部材は、可動部の変位方向に交差する方向から開口部を通して収容凹部に出し入れ可能となっている。 In the brake device, a buffer member made of a flexible material is disposed between the fixed portion and the movable portion. The buffer member holding part, which is at least one of the fixed part and the movable part, is provided with a storage recess for storing and holding the buffer member. An opening communicating with the outside of the buffer member holding portion is provided in a part of the side surface of the housing recess. The buffer member can be taken in and out of the housing recess through the opening from the direction intersecting the displacement direction of the movable part.

Brake device and hoist for elevator

本发明提供了一种电梯用曳引机的制动装置，其对支承在曳引机主体上并可以旋转的旋转体的旋转进行制动，该电梯用曳引机的制动装置包括：制动器安装部件，其可以以上述旋转体的旋转中心为中心旋转；固定部件，其将上述制动器安装部件固定在上述曳引机主体上，并限制上述制动器安装部件的旋转；制动装置主体，其安装在上述制动器安装部件上，并对上述旋转体的旋转进行制动，上述制动装置主体具有多个制动单元，这些制动单元以上述旋转体的旋转中心为中心对称配置。

Lift appliance and its traction machine

本发明涉及一种电梯装置及其曳引机(110)，该曳引机包括：曳引轮(204)、制动轮(219)、制动器(210)以及松闸装置(220)。该制动器具有铁心(211)、衔铁(214)以及制动弹簧(216)。该松闸装置具有多个螺钉(226)、与螺钉同数量的杠杆以及闸线(112)。螺钉穿过铁心的通孔与衔铁螺纹连接，杠杆对螺钉施加动力，克服制动弹簧的作用力移动衔铁。闸线包括可弯曲的套管(232)和芯线(234)。所述杠杆包含第1种杠杆(222)和第2种杠杆(224)。在闸线的一端，套管与第1种杠杆的动力点相连接，芯线与第2种杠杆的动力点相连接，而闸线的另一端与操纵柄相连接。据此，可以减少松闸的操纵力。

Brake device, elevator hoist using the same, and buffer reaction force adjusting method for brake device

A kind of safety arrestment redundancy perseverance deceleration hydraulic station and its control method

一种安全制动冗余恒减速液压站及其控制方法，液压站包括油泵、电机、比例溢流阀、比例方向阀、溢流阀、蓄能器、监测阀位的传感器、制动器组和电磁换向阀，开车前诊断电磁换向阀换位正确后运行，通过两种形式的控制实现安全制动：比例方向阀实现恒减速制动、溢流阀实现二级制动，当前一种形式失灵，冗余地关闭前一种形式，并冗余地进入下一种形式。安全制动时，需要导通的管路采用并联的两个电磁换向阀实现冗余导通，需要阻断的管路采用两个串联的电磁换向阀实现冗余阻断。安全制动时有多条通道，每条都冗余，若每条都有一个电磁换向阀出现换位故障，仍能完成本次安全制动，监测阀位的传感器诊断到电磁换向阀换位故障，报警或闭锁下次开车。

Intelligent anti-skidding system for steel wire rope of friction hoist and control method

本发明属于矿井提升设备领域，公开了一种摩擦提升机钢丝绳智能防滑系统及控制方法，系统包括制动装置、电控系统和导向轮，导向轮设置在钢丝绳一侧，在钢丝绳的摩擦力驱动下转动；所述制动装置设置在钢丝绳两侧，用于给钢丝绳施加制动摩擦力；摩擦轮和导向轮的连接轴上均设置有速度传感器，分别用于测量摩擦轮和导向轮的速度信号，所述速度传感器的输出信号与所述电控系统连接，所述电控系统用于根据所述速度传感器的输出信号，控制所述制动装置的制动力矩。本发明实现了摩擦提升的智能防滑，可以广泛应用于摩擦提升机领域。

Elevator winch having direct electron break of drum type

본 고안은 드럼방식의 직접형 전자 브레이크를 구비한 권양기에 관한 것으로, 엘리베이터 권양기의 하우징에 코일 고정부재를 고정시킴과 아울러 코일 고정부재에는 아마추어를 직접 연결한 상태에서 아마추어에 고정된 브레이크 슈를 매개로 브레이크 드럼의 외주면 양측을 가압하여 제동력이 발생되도록 하므로서 엘리베이터 권양기의 부품을 저감시켜 장치의 소형화 및 경량화를 달성함과 아울러 작업성도 향상시킬 수 있도록 이루어진 드럼방식의 직접형 전자 브레이크를 구비한 권양기를 제공함에 그 목적이 있다.        The present invention relates to a hoist provided with a drum type direct electromagnetic brake. The coil fixing member is fixed to the housing of an elevator winch, and the coil fixing member has a brake shoe fixed to the armature while directly connecting the armature to the coil fixing member. Hoisting machine equipped with drum type direct electromagnetic brake made to press the outer circumferential surface of the furnace brake drum to generate braking force, reduce the parts of elevator hoisting machine, achieve the miniaturization and lightening of the device, and improve the workability. The purpose is to provide. 이를 위해, 본 고안에 따른 드럼방식의 직접형 전자 브레이크를 구비한 권양기는, 드럼방식의 브레이크 장치가 적용되는 엘리베이터 권양기에 있어서, 상기 권양기의 구동모터 축에 설치되는 브레이크 드럼과, 상기 브레이크 드럼의 양측 외주면과 대응되는 권양기 하우징에 그 몸체를 관통하는 한 쌍의 고정볼트를 매개로 설치되는 한 쌍의 코일 고정부재와, 상기 각각의 코일 고정부재 상ㆍ하 내면의 일정 위치에 요입된 상태로 설치되는 금형코일스프링과, 상기 코일 고정부재의 대략 중앙부분에 요입된 상태로 설치되는 전자석코일과, 상기 각각의 코일 고정부재 내면에 설치되어 상기 금형코일스프링의 탄성력 및 전자석코일의 자기장에 의해 선택적으로 유동되는 한 쌍의 아마추어와, 상기 각각의 아마추어 내면에 일체로 고정 설치되어 상기 아마추어의 유동에 따라 연동되면서 상기 브레이크 드럼의 외주면을 선택적으로 밀착 가압하여 제동력을 발생시키는 브레이크 슈 및, 상기 코일 고정부 재 및 아마추어의 상호 맞닿는 부분에 설치되어 상기 브레이크 장치의 개방여부를 감지하는 센서부를 포함하여 구성되는 것을 특징으로 함에 따라 달성된다.        To this end, the winch with a drum-type direct electromagnetic brake according to the present invention, in the elevator winch to which the drum-type brake device is applied, the brake drum is installed on the drive motor shaft of the winch and the brake drum A pair of coil fixing members installed through a pair of fixing bolts penetrating the body in a winch housing corresponding to both outer circumferential surfaces, and installed in a predetermined position on the upper and lower inner surfaces of the ...

Deadman's brake for lowering or hoisting gear

本发明涉及用于升降装置的方法和安全制动器，其中为了操纵棘爪(SK)而使用起重磁铁或另外的机电的执行器(A)，其中棘爪(SK)的相应的位置利用至少两个开关或者传感器(S1、S2)进行监视，并且其中借助于与安全有关的控制器和至少一个传感器监视负载的或者升降装置的下降运动，并且在故障情况下触发安全制动。在此，起重磁铁或者棘爪(SK)布置为，当执行器、例如起重磁铁切换为无电流或者“无能量”的时，通过弹力和/或通过重力使棘爪啮合。通过该安全制动器能够实现的是，精确地限定和监视应当在被超过时触发安全制动器的极限速度。此外，通过使用两个传感器(S1、S2)、例如开关能够实现的是，例如在安全制动器啮合并且升降装置的驱动器想要使负载继续下降的情况下，借助于控制器监视棘爪的功能和运动并且识别不期望的运行状态。

Hoister

卷扬机主体作为可以自立的轴的悬臂式结构，在提高组装操作性及检查操作性的同时，在安装卷扬机主体时，利用轴的双支撑结构，可以确保强度。本发明的卷扬机具有可以旋转地支撑于从定子部件(1)悬臂式地延伸设置的固定轴(6)上的转子部件(2)，还具有设置于固定轴(6)的自由端侧、用于限制固定轴(6)的弯曲的限制部件(101)，定子部件(1)具有从定子框体(5)朝向转子部件(2)延伸设置的定子轭铁(7)及产生通过定子轭铁(7)的磁束的定子(8)，转子部件(2)具有在外周部上一体地设置有钢丝绳滑车部(15)的转子框体(10)，和从转子框体(10)朝向定子部件(1)延伸设置、与定子轭铁(7)一同形成磁性回路的转子轭铁(11)，和设置于转子轭铁(11)的与定子(8)对置的位置上的转子(12)。

Electrical brake on lift driving mechanism and method for regulating the air gap of said brake

The aim of the invention is to provide a brake that operates without damping elements but still silently. The speed of the magnetic plate or the brake body is reduced before they hit the brake surface such that the impact cannot be heard. This also applies to the other abutment of the brake body. The armature plate (1) of the brake is mechanically connected to a lower part (3) of a two-part shell core (3, 4, L1) by means of a bolt (2), in such a way that the air gap (5) in said two-part shell core (3, 4, L1) acts synchronously with the air gap (6) between the brake magnet (7, L2, R2) and the armature plate (1), with the interlying springs (8). The bolt (2) forms a connection between the armature plate (1) and the lower part (3) of the shell core (3, 4, L1), through the brake magnet (7, L2, R2), and the upper part (4) of the shell core (3, 4, L1) is mechanically connected to the brake magnet (7, L2, R2) in a fixed manner by means of an anchoring (9). The air gap is measured by means of a measuring element (18). An acceleration-regulated brake can be created by means of an acceleration sensor (19) on the armature plate (1). The invention is especially applicable to lift assembly.

Method and elevator drive with a brake device

In this elevator drive with a brake device (1), compression springs (2, 3) act on brake levers, whereby brake linings (13, 16) generate a brake force on a brake drum (14). The more the brake linings (13, 16) wear due to abrasion, the smaller the distance (d) of the plunger (21) from the brake magnet housing (19) becomes. Should the plunger (21) come into contact with the brake magnet housing, the braking capacity of the brake linings (13, 16) is completely eliminated. So that this operating condition that is dangerous for elevator users cannot occur, a switch (27) is provided that detects a minimum distance (d). The switch (27) can be arranged on the plunger (21) of the brake magnet (4) and detect the minimum distance (d) to the brake magnet housing (19) or, in the case of a retrofit, the switch (27) can be arranged on the brake magnet rod (23) and, for example, detect the distance of the second joint (24) from the brake magnet housing (19), and at the minimum distance (d) the switch (27) switches.

Elevator hoisting machine

본 발명에 의한 엘레베이터 승강기구는 일체로 형성된 쉬브, 브레이크 측단판 및 브레이크 디스크를 구비한 제 1 회전부 및 영구자석을 구비한 회전자 및 모터 측단판이 일체형성된 제 2 회전부를 포함하고, 상기 제 2 회전부는 상기 회전자에 인접하는 쉬브로 상기 제 1 회전부에 동축으로 연결된다. The elevator elevating mechanism according to the present invention includes a first rotating part including an integrally formed sheave, a brake side end plate, and a brake disc, a rotor having a permanent magnet, and a second rotating part integrally formed with a motor side end plate. Is coaxially connected to the first rotating part with a sheave adjacent to the rotor. 쉬브 케이싱은 상기 브레이크 측단판의 내주면을 지지하고 상기 제 1 회전부를 덮기 위해 제공되며, 제동력을 제공하기 위하여 상기 브레이크 디스크와 접촉하게 하는 브레이크 본체를 포함한다. 프레임은 제 2 회전부를 덮고 상기 모터 측단판의 내주면을 지지하도록 제공되며, 상기 영구자석을 마주보도록 배열된 고정자를 포함한다. 상기 쉬브 케이싱 및 프레임은 외부 인클로져를 형성하도록 결합된다. A sheave casing is provided for supporting the inner circumferential surface of the brake side end plate and covering the first rotational portion, and includes a brake body in contact with the brake disc to provide a braking force. The frame is provided to cover the second rotating portion and to support the inner circumferential surface of the motor side end plate, and includes a stator arranged to face the permanent magnet. The sheave casing and frame are joined to form an outer enclosure. 엘레베이터. 승강기구. Elevator. Lifting mechanism.

Spring brake for use in lift, has tension arm connected to armature and maintaining microswitch in open position, where arm is moved away from microswitch using pull off spring during verification and maintenance of brake

The brake (1) has an armature (6) mounted on a releasing device using helical springs (5), and a brake disk (4) mounted on a shaft (7). The springs act on the armature to connect the armature with the disk. The device attracts the armature to release the disk when the device is supplied with current. A microswitch (8) triggers a signal during undesired rotation of the armature. A tension arm (9) is connected to the armature and maintains the microswitch in open position. The arm is moved away from the microswitch using a pull off spring during verification and maintenance of the brake.

BRAKE SYSTEM WITH SECURED TORQUE RETRIEVAL

Device for monitoring a winch brake

Method and device for monitoring the operation of a winch brake, particularly of the lifting winch brake of a tower crane, in which a winch brake is automatically released when the winch motor is started up. It includes a first sensor (1) detecting an order to raise or to lower the load, a second, inductive, sensor (2) measuring the displacement of the disc, a time-comparator circuit (3) connected to the two sensors, in which the state of the signal from the first sensor (1) is compared with the state of the signal from the second sensor (2), a locking relay (5) connected to the output of the circuit (3) and intended to monitor the control of the motor on the basis of the output signal from the comparator (3).

ENGINE EQUIPPED WITH A BRAKING SYSTEM

La présente invention concerne un moteur (1) comportant : - un arbre (6) portant un rotor, - une poulie (5) entraînée par l'arbre (6), - au moins un frein à étrier (3) agissant sur une paroi (4) tournant avec la poulie (5), - au moins un frein axial (2). The present invention relates to a motor (1) comprising: - a shaft (6) bearing a rotor, - a pulley (5) driven by the shaft (6), - at least one stirrup brake (3) acting on a wall (4) rotating with the pulley (5), - at least one axial brake (2).

A kind of bridge Abseiling device

一种大桥用绳索装置，属于机械设备技术领域，其包括桥体、绳索、绳索桩、支架、轨道、滑轮、伺服电机Ⅰ、电机支撑架、伺服电机Ⅱ、工具箱、立柱、滑轨、拉绳、导向轮Ⅰ、滑块、绳索升降装置壳体、主动轴、导向轮Ⅱ，所述桥体上通过焊接连接有立柱，所述桥体与所述立柱之间连接有拉绳，所述立柱的上端通过螺栓连接有滑轨，所述滑轨内连接有滑块，所述滑块卡装在所述滑轨内，所述滑块可在滑轨内移动，所述滑块通过轴承连接有导向轮Ⅰ，通过滑块的移动，可带动导向轮Ⅰ的运动，从而扩大了绳索的覆盖范围。该发明的有益之处在于：能有效提高工作人员的工作效率及使用过程中的安全性能，对实际生产应用具有重要的意义。

Braking device of mine hoist

本公开属于矿井提升机领域，公开一种矿井提升机的制动装置，包括滚筒、支架和制动机构，所述滚筒安装于支架上，制动机构安装于支架上，所述支架上安装有托架，制动机构安装于托架上；所述制动机构包括传动单元、执行单元和驻车单元，传动单元与执行单元连接，驻车单元与执行单元连接。本公开通过控制力矩电机正转时动闸瓦与滚筒接触实现制动，力矩电机反转时动闸瓦远离滚筒制动解除，矿井提升机松闸，同时弱电控制制动装置，利用力矩电机提供制动力矩，无需复杂的液压系统，简化了盘式制动器结构同时避免了液压驱动导致泄露等一系列问题。

Control system and method for power-off safe lowering of construction elevator

一种施工升降机断电安全下降的控制系统，用于在发生断电故障时控制施工升降机安全下降，该控制系统包括应急操作盒、控制器、制动接触器、电机制动器、以及蓄电池，该应急操作盒与该控制器相连，该控制器与该制动接触器相连，该制动接触器与该电机制动器相连，该蓄电池用于在发生断电故障时为该控制系统提供应急供电，该应急操作盒设有应急开关，该应急开关用于接通该控制器的控制电路，该控制器向该制动接触器发出间断式的吸合信号，该制动接触器在该间断式的吸合信号作用下产生间歇性的闭合-断开动作，该电机制动器在该制动接触器处于闭合状态时对施工升降机进行抱闸制动，该电机制动器在该制动接触器处于断开状态时对施工升降机进行放闸松开。

Two-way lock collar device

本发明涉及一种双向锁盘器，其结构包括框架、制动夹块、制动触发机构和拉簧，在制动夹块的背面设置有上行滑道和下行滑道；在每个框架上制有上行制动滑轨和下行制动滑轨；制动夹块在拉簧的拉动作用下，贴靠在框架上，使上行制动滑轨贴靠在上行滑道上，使下行制动滑轨贴靠在下行滑道上。本发明可在同一安装位置处对轮盘的双向旋转运动均可起到快速制动的目的，避免了长跨度锁盘器在轮盘上安装不能的缺陷，解决了锁盘器不能实施轮盘双向制动的难题，提高了锁盘器的工作稳定性和可靠性。

Elevator brake control device, elevator brake system and method of testing such elevator brake system

Method for monitoring a brake system in an elevator system and corresponding brake monitor for an elevator system

Direct-acting drum brake device for elevator

The floating type disk brake of km deep-well elevator

本发明公开了一种千米深井提升机浮动式盘式制动器，包括制动盘、主盘体、副盘体和浮动式结构，主盘体包括机械制动单元和状态监测单元，机械制动单元包括闸瓦B、衬板B、压套、压板、螺钉、制动油缸筒体、制动活塞、T形活塞、碟形弹簧组件和缸盖，状态监测单元包括压力传感器、碟簧座传感器和电涡流传感器，副盘体包括闸瓦A和衬板A，浮动式结构包括滑动销轴、弹簧和支架。本发明能够动态监测闸瓦与制动盘之间的制动正压力和间隙、闸瓦磨损量和碟形弹簧疲劳断裂状态，同时可以实时自动补偿闸瓦磨损和自对正制动盘。

Procedure and drive of elevator with a brake device

Accionamiento de ascensor (41, 46) con un dispositivo de freno (1) que consiste en palancas de freno (5, 6) con muelles de compresión (2, 3) que ejercen una fuerza elástica, y en el que unos manguitos de freno (13, 16) generan una fuerza de frenado en un tambor de freno (14) y al menos un imán de freno (4) libera las palancas de freno (5, 6) contra la fuerza elástica, caracterizado porque está previsto al menos un interruptor (27) que controla una distancia mínima (d) entre una armadura (21) del imán de freno (4) y un alojamiento del imán de freno (19). Elevator drive (41, 46) with a brake device (1) consisting of brake levers (5, 6) with compression springs (2, 3) that exert an elastic force, and in which brake sleeves (13, 16) generate a braking force on a brake drum (14) and at least one brake magnet (4) releases the brake levers (5, 6) against the elastic force, characterized in that at least one switch (27) that controls a minimum distance (d) between an armature (21) of the brake magnet (4) and a housing of the brake magnet (19).

Amplitude variation type gantry crane device

本发明是一种变幅式龙门吊装置。它通过摆动减速器驱动主动轴两端的齿轮，齿轮啮合驱动龙门架下端的齿盘，实现龙门吊的摆动变幅；卷扬变速器带动卷扬机构的钢丝绳，钢丝绳与吊钩连接进行吊装工作。卷扬驱动轴上设有电磁刹车装置以实现停电状态下卷扬轴的自动抱紧，以提高龙门吊的安全性能。