Трансмиссия бортоповоротного колесного транспортного средства

Полезная модель относится к области транспортного машиностроения и может быть применена в конструкции транспортных средств, предназначенных для движения по заболоченной труднопроходимой местности, слабонесущим грунтам, льду рек и озер, а также преодоления водных преград. Трансмиссия бортоповоротного колесного транспортного средства, состоящая из сцепления, механической коробки перемены передач, двух полуосей, двух промежуточных опор, двух валов, двух маховиков, двух первых цепных передач, соединенных с четырьмя вторыми цепными передачами, дополнительно содержит фрикционные диски сцепления и корзины сцепления, а ведущий вал от промежуточной опоры проходит сквозь полую ступицу маховика, на которой установлена ведущая звезда первой цепной передачи. Причем ведущая звезда первой цепной передачи соединена цепью одновременно с двумя ведомыми звездами второй цепной передачи. Техническим результатом заявляемой полезной модели является повышение маневренности с возможностью увеличения внутреннего ...

Колесное транспортное средство

Изобретение относится к области транспортного машиностроения. Колесное транспортное средство содержит несущую раму с моторно-трансмиссионным блоком, двигатель внутреннего сгорания, сцепление, вариатор, реверс-редуктор со встроенным дифференциалом, ведущие колеса, полуоси дифференциала, полуоси ведущих колес, переднюю опорную тележку с ведомыми самоустанавливающимися колесами, связанную с несущей рамой посредством горизонтального шарнира, и кресло водителя. Вариатор выполнен в виде двух фрикционных роликов, кинематически связанных между собой регулирующим катком в виде эллипсоида вращения с возможностью его наклона в вертикальной плоскости относительно горизонтальной оси при помощи рычага управления поворотом. Полуоси дифференциала кинематически связаны одновременно с полуосями ведущих колес и с фрикционными роликами замыкающего дифференциал вариатора. Рычаг управления поворотом объединен с кнопкой управления дроссельной заслонкой, рукояткой тормоза, переключателями света и указателей поворота ...

УСТРОЙСТВО И СПОСОБ РУЛЕВОГО УПРАВЛЕНИЯ ТРАНСПОРТНЫМ СРЕДСТВОМ

... 1. Транспортное средство, имеющее систему гидропривода с разомкнутым контуром, в котором указанная система гидропривода с разомкнутым контуром содержит: ! первый гидравлический двигатель с переменным рабочим объемом для приведения в движение землеройных приспособлений на первой стороне транспортного средства, ! второй гидравлический двигатель с переменным рабочим объемом для приведения в движение землеройных приспособлений на второй стороне транспортного средства, ! средство управления для рулевого управления транспортным средством с помощью изменения рабочего объема одного из указанных первого и второго двигателей. ! 2. Транспортное средство по п.1, в котором первый и второй двигатели имеют дискретное число выбираемых положений рабочего объема. ! 3. Транспортное средство по п.1, в котором средство управления содержит первое и второе средства ввода для управления первым и вторым двигателями соответственно. ! 4. Транспортное средство по п.3, которое содержит третье средство ввода для управления ...

VERFAHREN ZUM FÜHREN EINES MEHRSPURIGEN FAHRZEUGS AUF EINER KURVENBAHN

ZWEIWEGE EINZELPUMPEN, HYDROSTATISCHER ANTRIEB FÜR MÄHER

Prime mover installations for land vehicles

... 1,020,996. Hydrostatic gear control. SOC. INDUSTRIELLE GENERALE DE MECANIQUE APPLIQUEE S.I.G.M.A. Aug. 29, 1963 [Sept. 15, 1962], No. 34255/63. Headings F2C and F2D. A hydrostatic transmission for a vehicle comprises an engine driven variable displacement pump 2 connected through a flow dividing valve 12 to two fixed or variable displacement motors 4, 4a which drive vehicle wheels 5, 5a and auxiliary pumps 18, 18a delivering liquid to chambers 20, 20a at the ends of the flow dividing valve 12, the outlets 25, 25a of which chambers 20, 20a are controlled by a manually operated throttle valve 24. During normal operation, with the throttle valve 24 in the central position shown, the pressures in the chambers 20, 20a are equal and the valve spool 12 is centred by springs 27, 27a to provide equal flow through each motor 4, 4a. If a pressure differential occurs in the chambers 20, 20a due to one wheel slipping, the flow dividing valve spool 12 is automatically moved by the differential pressure ...

ALL-WHEEL-DRIVE VEHICLE

Hydrostatic screw-locking device to order assisted for towing vehicle and its trailer.

Sophisticated cross-country vehicle.

Device of coupling and uncoupling with balls.

GUIDANCE ARRANGEMENT FOR SELF-PROPELLED MACHINES

HYDRAULICALLY PROPELLED VEHICLE

WORK VEHICLE

DEVICE FOR SWITCHING THE STEERING GEAR OF A TRACKED VEHICLE

AXLE ARRANGEMENT AND VEHICLE

SELF-PROPELLED ONE, MEANS CROSS-BEAMS OR SUCH GUIDABLE MACHINE

GUIDANCE BRAKE MECHANISM

BRAKE ASSEMBLY FOR MOTOR VEHICLES, IN PARTICULAR AGRICULTURAL TRACTORS

HYDRAULIC BRAKE MECHANISM TO DRIVING AND STEERING BRAKES OF FOURWHEEL VEHICLES, IN PARTICULAR AGRICULTURAL TRACTORS

GUIDANCE BRAKE MECHANISM FUR HYDRAULIC BRAKECASH MOTOR VEHICLES

VEHICLE WITH HYDROSTATIC TRANSMISSION AND STEERING ELEMENT BY GUIDABLE WHEELS AND SLIDE STEERING ELEMENT

GUIDANCE ASSISTANCE AT A ZWEISPURIGEN VEHICLE.

STEERING DEVICE FOR SELF-PROPELLED AGRICULTURAL IMPLEMENTS

A OH MOTOR VEHICLE

SECURITY FOR A STEERING GEAR OF A TRACKED VEHICLE

STEERING DEVICE FOR SELF-PROPELLED MACHINE.

Steering system for a oh tractors

Engine for a track laying vehicle

Steering gear for vehicles with rigidly stored axles of impellers or drive wheels for tracks u.dgl.

PROCEDURE FOR STEERING AND PROPELLING A SELF-PROPELLED MACHINE AND SELF-PROPELLED MACHINE

Device for the change of the altitude over the ground and the inclination opposite the lane in longitudinal direction of a track laying vehicle

HYDRAULIC TORQUE VECTORING DIFFERENTIAL

Variable flow control devices, related applications, and related methods

CONTROL EQUIPMENT FOR OVERLAPPING STEERING GEARS FOR TRACKED VEHICLES.

TRACKED VEHICLE CABIN CRUISER WITH STEERING DEVICES AND SUSPENSION OF THE SEAMS GUIDES OF THE CRAWLER TRACKS.

STEERING DEVICE FOR SELF-PROPELLED MACHINE.

HYDRAULIC MOTOR-PROPELLED, TWO-PIECE, CROSS-COUNTRY VEHICLE.

STEERING DEVICE AT A SELF-PROPELLED AGRICULTURAL IMPLEMENT.

DRIVE FOR A VEHICLE.

Self-propelled machine guidable by means of cross-beams.

Transmission control system for single-axle tractor

The hydrostatic transmission system comprises a motor (7) for each driving wheel (9), while a separate steerable implement is mounted in front or attached by a towbar. Adjustable steering valves (15,16) connected between a hydraulic pump (13) and the motors reduce the amount of fluid supplied to the inside wheel when rounding a curve.The valves are adjusted dependent on the amount of deflection of the steering tiller (22) or towbar from the lengthwise axis of the tractor. Deflection can be transmitted mechanically by a linkage to the valves, or partly via an electronic system ...

Control system for a track laying vehicle.

Transmission mechanism for single=axle tractor

Each hydraulic motor (6,7) drives one section of an axle and on which a land-wheel (1',2') is mounted. There is a clutch (3) between the axle sections which couples them together when desired.Between the adjustable pump (9) driven by the engine (10) and the hydraulic motors is a valve (8) connecting the latter in parallel or series with the pump as desired. On changing over from series to parallel, a selector rod acting on the pump-adjusting unit ensures that the maximum speeds of the two motors are the same. The valve can have a steering control system allowing throttling or stopping of one or the motors when connected in series, thus steering the tractor or assisting with the steering.

TRACTOR WITH THE HYDRAULIC CONTROL BESIDES SPEED AND THE STEERING GEAR FOR STEERING CONTROL WITH THE MAXIMUM SPEED

Оборудование управления коробкой передач с разделением потока мощности гусеничного трактора

Изобретение относится к автомобильной промышленности. Устройство содержит две рукоятки управления левым и правым бортами машины с валами, установленными в опорах, рычаги, жестко соединенные с валами рукояток и кинематически связанные посредством гибких тяг с исполнительными органами переключения передач соответствующих бортов. Каждый вал рукоятки управления снабжен жестко закрепленным на нем зубчатым сектором.

Планетарная коробка передач

Планетарная коробка передач содержит ведущий вал, который соединен с эпициклом первого и солнечной шестерней второго планетарного механизма. Водило первого планетарного механизма соединено с водилом второго планетарного механизма и с тормозным фрикционом. Эпицикл второго планетарного механизма соединен с солнечной шестерней третьего, четвертого и эпициклом пятого планетарных механизмов.

ТРАКТОР С ГИДРАВЛИЧЕСКИМ УПРАВЛЕНИЕМ СКОРОСТЬЮ И РУЛЕВЫМ МЕХАНИЗМОМ ДЛЯ РУЛЕВОГО УПРАВЛЕНИЯ ПРИ МАКСИМАЛЬНОЙ СКОРОСТИ

Предложен трактор, имеющий колеса с гидроприводом на конце с кабиной и самоориентирующиеся колеса на конце с двигателем. Он может двигаться кабиной вперед в рабочем режиме с жаткой на переднем конце. Он поворачивается двигателем вперед в положении транспортировки для более устойчивого движения с более высокой скоростью. Ведущие колеса приводятся в действие гидравлическими двигателями, каждый из которых имеет собственный приводной насос, производительность которого регулируется кулачковым диском. Управление скоростью осуществляется управляемым вручную рычагом при помощи сервоцилиндра, который задает положение рычага управления скоростью, перемещающего оба кулачковых диска в заданное положение. В положении максимальной скорости оба кулачковых диска упираются в стопор. Рулевое управление осуществляется посредством дифференциального перемещения кулачковых дисков для приведения колес с разными скоростями. Шток поршня сервоцилиндра включает в себя пружинное средство сброса давления, в результате ...

СИСТЕМА КЕРУВАННЯ СТУПІНЧАСТОЮ ТРАНСМІСІЄЮ З БОРТОВИМИ КОРОБКАМИ ПЕРЕДАЧ

Система керування ступінчастою трансмісією з бортовими коробками передач містить праву і ліву бортові коробки передач, гідравлічний вихід кожної з яких підключений до входу відповідного електрогідравлічного клапанного пристрою з електрогідравлічними клапанами відповідно до кількості передач у бортовій коробці передач. Права і ліва бортові коробки передач оснащені датчиками положення частоти обертання вихідних валів, підключеними до входу введеного блока керування, введений рульовий механізм, оснащений датчиком положення, введені два електрогідравлічні клапани.

СИСТЕМА КЕРУВАННЯ СТУПІНЧАСТОЮ ТРАНСМІСІЄЮ З БОРТОВИМИ КОРОБКАМИ ПЕРЕДАЧ

Система керування ступінчастою трансмісією з бортовими коробками передач містить двигун внутрішнього згоряння (ДВЗ), механічно з'єднаний з правою і лівою бортовими коробками передач, виконавчі елементи, які зв'язані з відповідними бортовими коробками передач і блоком керування. До входу блока керування підключені датчики положення педалі керування частотою обертання колінчастого вала ДВЗ і положення педалі зчеплення, пристрої включення підвищеної та зниженої передачі, а також датчики частоти обертання колінчастого вала ДВЗ і положення рейок паливних насосів ДВЗ. Виконавчі елементи виконані у вигляді електрогідравлічних клапанних пристроїв (ЕКП) з електрогідравлічними клапанами, кожен з яких містить електромагніт керування та гідравлічний клапан з датчиком положення гідравлічного клапана. Гідравлічний вихід кожної бортової коробки передач з'єднаний з входом кожного електрогідравлічного клапана відповідного ЕКП. Гідравлічний вихід кожного електрогідравлічного клапана кожного ЕКП з'єднаний ...

Гидравлическая система рулевого управления транспортного средства на гусеничном ходу

Гидравлическая система рулевого управления транспортного средства на гусеничном ходу, содержащая маслостанцию с напорной и сливной гидромагистралями, насос-дозатор, кинематически связанный с рулевым колесом, гидравлически соединенный с напорной и сливной гидромагистралями и гидролиниями через нормально закрытые трехлинейные двухпозиционные гидрораспределители (8, 9) со штоковыми полостями гидроцилиндров управления фрикционными передачами, поршневые полости которых гидролиниями через нормально открытые трехлинейные двухпозиционные гидрораспределители (16, 17) соединены с напорной гидромагистралью маслостанции, а также тормозные гидроцилиндры с подпружиненными в сторону выключения тормоза поршнями, отличающаяся тем, что тормозные гидроцилиндры соединены с гидроцилиндрами Фиг. 1 управления фрикционными передачами дополнительными гидролиниями через дополнительные нормально закрытые трехлинейные двухпозиционные гидрораспределители (22, 23) посредством отверстий, выполненных в гидроцилиндрах ...

Intelligent navigation locomotive

Two rounds of robot chassis structure

Balancing device for two hydraulic control mechanisms for mines for slaughtering and transport

Pont postpones with differential ordered for farm tractors and other vehicles

CONVEY CATERPILLAR IMPROVES

TRACTOR

Tracked vehicle

BRAKE VALVE

INSTALLATION Of DRIVE FOR the DISPLACEMENT AND the DIRECTION OF VEHICLES PER NUMBER ORDERING OF REVOLUTIONS OF the DRIVING WHEELS

STEERING MECHANISM, IN PARTICULAR FOR AGRICULTURAL MACHINERY

DIRECTIONAL TRANSMISSION FOR SELF-PROPELLED UNIT AND SELF-PROPELLED UNIT EQUIPS With SUCH a DIRECTIONAL TRANSMISSION

CULTIVATOR FOR WORKING OPERATOR HAS FOOT

CONVEY CATERPILLAR OR ANALOGUE HAS ORDER INDEPENDENT OF THE PROPELLANT AND DIRECTING BODIES OF THE TWO DIMENSIONS OF THE VEHICLE, FOR WORK TRANSPORT AND HANDLING

Steering mechanism for tractors

DEVICE OF ASSEMBLY Of a STEERING WHEEL, IN PARTICULAR FOR FARM TRACTORS

System of direction for tractors with only one axle

HYDRAULIC SYSTEM FOR HYDRAULICALLY-OPERATED VEHICLE

GEAR CHANGE MECHANISM AND STEERING FLUIDIC DEVICES

Direction hydraulics and transmission system for integral tracked vehicles

New steering mechanism for track-laying tractor

CONTROL DEVICE OF DIRECTION OF the NOSE GEAR WHEELS FOUR-WHEELED VEHICLE DRIVING

FLUID DISPENSING ASSEMBLY

tRACK LAYING VEHICLEsTEERING SYSTEM ON ON

TOGETHER OF ASSEMBLY FOR a DEVICE Of ACTUATION OF ORDER, IN PARTICULAR a DEVICE Of ACTUATION OF SOUS-VITESSE ON a VEHICLE

Control handle for vehicle propelled by hydraulic motors

The control handle (18) has a transverse bar (22) that is gripped by the operator, and is mounted on a transverse pivot (8). The handle can rotate about a vertical axis, supported in a sleeve (14) attached to a transverse plate (10) at the pivot. A horizontal plate (28) half way up the handle stem is attached by ball joints (30) to cables (32,36), which control separate hydraulic pumps.

TOWING VEHICLE, IN PARTICULAR HAS AGRICULTURAL USE

CONTROL DEVICE FOR HYDRAULIC MECHANICS Of DRIVE

Skid steer loader vehicle with front and rear ground propellers driven by transmissions for propelling and steering

L'invention concerne un véhicule chargeur compact à direction par patinage (10) équipé de premiers et deuxièmes moyens de propulsion pouvant venir en prise avec le sol (14, 17) respectivement disposés sur des côtés opposés du véhicule (10), les premiers et deuxièmes moyens de propulsion (14, 17) étant entraînés par des premiers et deuxièmes moyens de transmission respectivement pour permettre de propulser et de diriger le véhicule (10) en entraînant les moyens de propulsion (14, 17) d'un côté du véhicule (10) indépendamment des moyens de propulsion (14, 17) de l'autre côté du véhicule. Un ensemble de mât du véhicule possède des moyens de connexion à un équipement de manutention de matériaux, une extrémité intérieure de l'ensemble de mât (67) étant montée de manière pivotante sur la carrosserie (11), près de l'extrémité arrière de la carrosserie (11), pour permettre un mouvement entre une position levée et une position baissée dans laquelle l'ensemble de mât (67) s'étend vers l'avant le ...

STEERING ACTUATED MOTOR DISPLACEMENT CONTROL VALVE

STEERING MECHANISM FOR TRACKED VEHICLES, ESPECIALLY SNOW MOBILES

HYDRAULIC BRAKING SYSTEMS

STEERING AND BRAKING SYSTEM FOR SELF-LAYING TRACK VEHICLES

HYDROSTATIC TRANSMISSIONS OF POWER HAS GREAT PLACE OF OPERATION

Lightweight all terrain vehicle with articulation and elastic direction devices

VEHICLE BRAKE SYSTEM

Control mechanism for hydrostatic transmission gears - gives greater control of swash plate inclination and speed

Hydrostatic steering transmission for tracked vehicle - has capacity of pump and motors varied to match with effort required to turn

LIGHT VEHICLE AUTOTRACTE INTENDS FOR THE HANDLING OF LEISURE OR SEMI-PROFESSIONNELLE

TRACTOR HAS WEAK TURNING RADIUS

CONTROL DEVICE OF DIRECTION OF the NOSE GEAR WHEELS FOUR-WHEELED VEHICLE DRIVING

INSTALLATION OF TRANSMISSION FOR VEHICLE CATERPILLAR

Hydraulic circuit for single lever control of direction of vehicle

Dispositif hydraulique de commande directionnelle d'un véhicule à l'aide d'un levier unique, comportant: un manipulateur hydraulique (1) à quatre départs avant-arrière et droite-gauche; un dispositif de sélection (4) à quatre sélecteurs (5) en pont raccordé au manipulateur et dont les sorties sont raccordées à quatre commandes d'entraînement directionnel arrière gauche, avant gauche et arrière droite et avant droite des organes de roulement du véhicule; deux tiroirs (7) à deux positions, respectivement une à liaisons directes et une à liaisons croisées, insérés dans les lignes d'alimentation des commandes d'entraînement directionnel; des premiers moyens de commande actifs sur une première extrémité (8) des tiroirs étant raccordés aux sorties avant ou arrière du manipulateur; et des seconds moyens de commande actifs sur une seconde extrémité (9) des tiroirs étant raccordés aux sorties droite et gauche du manipulateur; ce grâce à quoi la commande du véhicule reste totalement ergonomique, ...

HYDRAULIC GEAR BOX

IMPROVEMENT WITH THE VEHICLES ON WHEELS EQUIPPED WITH DEVICES OF TRANSMISSION OF POWER

The lever for a change of direction

I PROPAGATE PERFECTED WITH TRANSMISSION OF CHANGE AND BRAKE HYDRAULICALLY ACIONAVEL APPLIED FOR SPRING

Steering actuator of independent steer-by-wire system

A steering actuator of an independent type steer-by-wire system comprises a housing fixed to a vehicle body and an ultrasonic motor. The ultrasonic motor has a stator internally fixed to the housing and a rotator rotating relative to the stator when an electric current is applied A steering rod having a first end and a second end penetrates though a center portion of the ultrasonic motor. The first end of the steering rod extends out of the housing for connection to a tie rod A movement conversion means is operably associated with the steering rod for convening rotating movement of the ultrasonic motor into linear movement of the steering rod ...

Hydraulic torque vectoring differential

A hydraulic torque vectoring differential includes two epicyclic gear sets and two variable displacement hydrostatic units. Each hydrostatic unit is coupled to a reaction member of one of each of the epicyclic gear sets, each of which also has a first gear element coupled to an input drive shaft for power input from a prime mover of said vehicle and a third gear element coupled to an output shaft operatively driving the wheels of the vehicle. The hydrostatic units are hydraulically coupled so that hydraulic fluid pressurized in one hydrostatic unit drives the other hydrostatic unit, and fluid pressurized in the other hydrostatic unit drives the one hydrostatic unit. A control system controls the displacement of the variable displacement hydrostatic units. Power from the prime mover flows primarily through the epicyclic gear sets to the output shafts, and only differential power is passed through the hydrostatic units, thereby isolating the hydraulic units from the primary power flow and ...

MACHINE SUSPENSION SYSTEM

A machine includes a prime mover having a power take-off, a chassis configured to support at least an operator and the prime mover, a subframe pivotally coupled to the chassis about a pivot axis at a first location, at least one drive device configured to drive wheels of the machine, a drive belt and pulley arrangement. The subframe is further coupled to the chassis via at least one suspension device at a second location. The at least one drive device is driven by the prime mover and is coupled to the subframe. The pulley arrangement is configured to direct the drive belt from the power take-off of the prime mover to at least one drive pulley on the at least one drive device. The pulley arrangement comprises an idler pulley having a diameter and a rotational axis. The idler pulley is coupled to the chassis such that the rotational axis is spaced from the pivot axis by no greater than 1.5 times the diameter. 1. A machine comprising:a prime mover, the prime mover having a power take-off;a chassis, wherein the chassis is configured to support at least an operator and the prime mover;a subframe pivotally coupled to the chassis about a pivot axis at a first location, wherein the subframe is further coupled to the chassis via at least one suspension device at a second location;at least one drive device configured to drive wheels of the machine, the at least one drive device driven by the prime mover and coupled to the subframe;a drive belt; anda pulley arrangement configured to direct the drive belt from the power take-off of the prime mover to at least one drive pulley on the at least one drive device, wherein the pulley arrangement comprises an idler pulley having a diameter and a rotational axis and wherein the idler pulley is coupled to the chassis such that the rotational axis is spaced from the pivot axis by no greater than 1.5 times the diameter.2. The machine of claim 1 , wherein the idler pulley is coupled to the chassis such that the rotational axis is spaced ...

Ходовая система гусеничной машины

Полезная модель относится к транспортному машиностроению, в частности к конструкции ходовых систем гусеничных транспортных средств. Целью полезной модели является повышение надежности и безопасности работы с одновременным уменьшением площади опоры при повороте/развороте со снижением сопротивления (бокового волочения гусениц), что будет способствовать снижению затрат энергии на совершение поворота/разворота, отсюда, экономия топлива. Снижается механическое воздействие на элементы ходовой (катки, балансиры, траки), что увеличивает ресурс и повышает эксплуатационную надежность машины. Поставленная цель достигается созданием ходовой системы гусеничной машины, содержащей по меньшей мере (три средних опорных катка) подвески гусеничных движителей, блок управления, гидросистему с гидроцилиндрами, балансиры и амортизаторы, конструкция дополнительно оснащена выдвижными средними катками. Новизна, заявляемой полезной модели, состоит в том, что применяется принцип сокращения площади опоры машины на грунт при поворотах/разворотах, как результат значительно снижается сопротивление (боковое волочение гусениц), что обеспечивает снижение затрат энергии на совершение поворота разворота, отсюда, экономия топлива. Снижается механическое воздействие на элементы ходовой (катки, балансиры, траки), что увеличивает ресурс и повышает эксплуатационную надежность машины. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 181 797 U1 (51) МПК B62D 11/06 (2006.01) B62D 55/00 (2006.01) B62D 55/112 (2006.01) B62D 55/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B62D 11/06 (2006.01); B62D 55/00 (2006.01); B62D 55/104 (2006.01); B62D 55/112 (2006.01) (21)(22) Заявка: 2017131606, 08.09.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Иванников Сергей Анатольевич (RU) Дата регистрации: 26.07.2018 (56) Список документов, цитированных в отчете о поиске: US 3477339 A1, 11.11.1969. RU (45) Опубликовано: 26.07.2018 Бюл. ...

SELF-PROPELLED CONSTRUCTION MACHINE AND METHOD FOR CONTROLLING A SELF-PROPELLED CONSTRUCTION MACHINE

The invention relates to a self-propelled construction machine which has a drive means having a left and a right crawler track A, B, in particular a slipform paver, and to a method for controlling a self-propelled construction machine, in particular a slipform paver. The construction machine comprises a machine frame , a working means arranged on the machine frame, a crawler track A on the left in the working direction A and a crawler track B on the right in the working direction, and a drive means for driving the left crawler track at a predetermined chain speed and the right crawler track at a predetermined chain speed. In addition, the construction machine has a control unit which is configured such that, on the basis of the distance a between a front reference point with respect to the machine frame in the working direction A and a predetermined path , the chain speed of the left crawler track A and/or the chain speed of the right crawler track B is predetermined such that the front reference point moves on the predetermined path . The control unit is further configured such that, during cornering, the control is corrected on the basis of the distance b between a rear reference point with respect to the machine frame in the working direction and the predetermined path such that the distance between the rear reference point with respect to the machine frame in the working direction and the predetermined path reduces. 118-. (canceled)19. A self-propelled construction machine comprising:a machine frame;a working means arranged on the machine frame;a crawler track on the left in the working direction and a crawler track on the right in the working direction;a drive means for driving the left crawler track at a predetermined chain speed and the right crawler track at a predetermined chain speed, based on a distance between a front reference point with respect to the machine frame in the working direction and a predetermined path, the chain speed of the left crawler ...

ROW-CROP TRACTOR

A row-crop tractor including a tractor frame structure having a front portion and a rear portion. Two front wheels are rotatable mounted to the front portion of the tractor frame structure. At least a rear wheel is mounted to the rear portion of the tractor frame structure. A drive mechanism is mounted to the front portion of the tractor frame structure and connected to the two front wheels for controllably driving the same in dependence upon a control signal received from an operator of the row-crop tractor such that one front wheel is driven independent from the other. A front farm implement connecting mechanism is disposed at a front end of the front portion of the tractor frame structure and an operator seat mounted to the front portion of the tractor frame structure in close proximity to the front end of the front portion of the tractor frame structure such that the operator of the row-crop tractor is enabled to reach a front farm implement connected to the front farm implement connecting mechanism. 1. A row-crop tractor comprising:a tractor frame structure having a front portion and a rear portion;two front wheels rotatable mounted to the front portion of the tractor frame structure;at least a rear wheel mounted to the rear portion of the tractor frame structure;a drive mechanism mounted to the front portion of the tractor frame structure and connected to the two front wheels for controllably driving the same in dependence upon a control signal received from an operator of the row-crop tractor;a front farm implement connecting mechanism disposed at a front end of the front portion of the tractor frame structure; and,an operator seat mounted to the front portion of the tractor frame structure.2. The row-crop tractor according to wherein the operator seat is placed in close proximity to the front end of the front portion of the tractor frame structure such that the operator of the row-crop tractor is enabled to reach a front farm implement connected to the front ...

Working machine

A working machine includes a controller configured to determine a first deceleration threshold corresponding to each of a first traveling pressure, a second traveling pressure, a third traveling pressure, and a fourth traveling pressure, to perform automatic deceleration to reduce rotation speeds of a left traveling motor and a right traveling motor, and to judge whether to perform the automatic deceleration based on the determined first deceleration threshold, the first traveling pressure, the second traveling pressure, the third traveling pressure, and the fourth traveling pressure.

WORK VEHICLE

A work vehicle including: an engine mounted on a traveling body; a straight-traveling system transmission path including a first stepless transmission device; and a turning system transmission path including a second stepless transmission device, The work vehicle combines an output of the straight-traveling system transmission path and an output of the turning system transmission path to drive left and right traveling units. The work vehicle further includes: control sections that control the output of the straight-traveling system transmission path and the output of the turning system transmission path in cooperation with each other; and a driving force blocking mechanism that blocks a driving force transfer from the straight-traveling system transmission path. When the driving force transfer from the straight-traveling system transmission path is blocked by the driving force blocking mechanism, the mutually reverse rotation operations of the left and right traveling units is inhibited. 1. A work vehicle comprising:an engine that is mounted on a traveling body;a straight-traveling system transmission path including a first stepless transmission device; anda turning system transmission path including a second stepless transmission device,the work vehicle being configured to combine an output of the straight-traveling system transmission path and an output of the turning system transmission path to drive left and right traveling units and comprising:a control section configured to control the output of the straight-traveling system transmission path and the output of the turning system transmission path in cooperation with each other; anda driving force blocking mechanism configured to block a driving force transfer from the straight-traveling system transmission path, whereinin a case where the driving force transfer from the straight-traveling system transmission path is blocked by the driving force blocking mechanism, the control section restricts the output of ...

STEERING ASSEMBLY FOR A WORK MACHINE

A work machine includes a machine frame, a prime mover supported by the machine frame, and wheels rotatably coupled to the machine frame and driven by the prime mover. The wheels are supported on a ground surface. The work machine further includes a steering assembly having a pivot frame pivotally coupled to the machine frame about a pivot axis. The steering assembly is pivotable about the pivot axis relative to the machine frame to turn the work machine. The steering assembly also includes a damping mechanism positioned between the pivot frame and the machine frame to inhibit oscillations. 1. A work machine comprising:a machine frame;a prime mover supported by the machine frame;wheels rotatably coupled to the machine frame and driven by the prime mover, the wheels being supported on a ground surface; anda steering assembly including a pivot frame pivotally coupled to the machine frame about a pivot axis, the steering assembly being pivotable about the pivot axis relative to the machine frame to turn the work machine, and the steering assembly also including a damping mechanism positioned between the pivot frame and the machine frame to inhibit oscillation.2. The work machine of claim 1 , wherein the damping mechanism is offset from the pivot axis.3. The work machine of claim 2 , wherein the damping mechanism includes a linear damper.4. The work machine of claim 1 , wherein the damping mechanism is aligned with the pivot axis.5. The work machine of claim 4 , wherein the damping mechanism includes one selected from the group consisting of a washer and a rotary damper.6. The work machine of claim 1 , wherein the damping mechanism resists relative motion between the pivot frame and the machine frame.7. The work machine of claim 1 , wherein the damping mechanism includes a first end coupled to the machine frame and a second end coupled to the pivot frame claim 1 , wherein the damping mechanism is adjustable by coupling the second end to different mounting locations on ...

WORKING MACHINE

A working machine includes a hydraulic pump, a first traveling device to be driven by a first traveling hydraulic actuator, a second traveling device to be driven by a second traveling hydraulic actuator, a first output tube to connect a first output port of the hydraulic pump to the first traveling hydraulic actuator, a second output tube to connect a second output port of the hydraulic pump to the second traveling hydraulic actuator, a first operation device to operate the first traveling device, a second operation device to operate the second traveling device and a correction mechanism to equalize a driving force of the first traveling hydraulic actuator and another driving force of the second traveling hydraulic actuator when the first operation device and the second operation device are operated each at same operation extents to perform a straight-traveling operation. 1. A working machine comprising:a hydraulic pump;a first traveling device to be driven by a first traveling hydraulic actuator;a second traveling device to be driven by a second traveling hydraulic actuator;a first output tube to connect a first output port of the hydraulic pump to the first traveling hydraulic actuator;a second output tube to connect a second output port of the hydraulic pump to the second traveling hydraulic actuator;a first operation device to operate the first traveling device;a second operation device to operate the second traveling device; anda correction mechanism to equalize a driving force of the first traveling hydraulic actuator and another driving force of the second traveling hydraulic actuator when the first operation device and the second operation device are operated each at same operation extents to perform a straight-traveling operation.2. The working machine according to claim 1 , comprising a blocking position blocking, in the straight-traveling operation, supply of a pressured fluid between the first output tube and the second output tube;', 'a first switching ...

WORK VEHICLE

A work vehicle including an engine () mounted on a traveling body (), a straight-traveling system transmission path including a first stepless transmission device (), and a turning system transmission path including a second stepless transmission device (), the work vehicle being configured to combine outputs of the straight-traveling and turning system transmission paths to drive left and right traveling units (). The work vehicle also includes control sections () that control the outputs of the straight-traveling and turning system transmission paths in cooperation with each other, a transmission operation tool () that specifies the output of the straight-traveling system transmission path, and a detector () that detects the output of the straight-traveling system transmission path. The control sections select one of an instruction value from the transmission operation tool and an actually measured value from the detector and set the output of the turning system transmission path. 1. A work vehicle including an engine that is mounted on a vehicle body , a straight-traveling system transmission path including a first stepless transmission device , and a turning system transmission path including a second stepless transmission device , the work vehicle being configured to combine an output of the straight-traveling system transmission path and an output of the turning system transmission path to drive left and right traveling units , the work vehicle comprising:a control section configured to control the output of the straight-traveling system transmission path and the output of the turning system transmission path in cooperation with each other;a transmission operation tool configured to specify the output of the straight-traveling system transmission path; anda detector configured to detect the output of the straight-traveling system transmission path,wherein the control section is configured to select one of an instruction value from the transmission operation ...

WINDROWER STEERING SYSTEM

A steering system for a differential steered self-propelled agricultural windrower, windrower speed and direction controlled by adjusting the pivotal position of rotatable pintel arms to control the output of a pair of tandem-mounted hydraulic drive pumps and provide motive power for the windrower. A control input shaft that is both rotatable and axially moveable manages the relative positioning of the pintel arms. A hydraulic steering motor is operably connected to the input shaft. Rotation of the hydraulic steering motor is managed by a steering control valve attached to a cab-mounted windrower steering wheel. 1. A direction control mechanism for a differential speed steered agricultural machine comprising:right and left drive motors;right and left hydraulic drive pumps connected in tandem to and driven by an engine, each drive pump having a displacement control mechanism including a pintel arm rotatable between first and second positions, rotation of which changes hydraulic fluid flow rate from respective drive pumps to control speed and direction of respective drive motors;a control input shaft connected to the left and right pintel arms, the shaft rotatable about its longitudinal axis and translatable along its longitudinal axis, rotation of the shaft causing simultaneous rotation of the pintel arms in opposite directions, translation of the shaft causing simultaneous rotation of the pintel arms in the same direction;a steering drive motor connected to the control input shaft to rotate the shaft thereby managing relative displacement of the right and left hydraulic pumps; anda steering wheel connected to rotate a hydraulic steering valve to the right and left of a central position, the steering valve directing a varying volume of pressurized hydraulic fluid to the steering drive motor, the variation dependent upon the degree and direction of steering wheel rotation from the central position, thereby causing rotation of the control input shaft in proportion to ...

FRONT-MOUNTED STAND-ON LAWN CARE VEHICLE

A riding lawn care vehicle may include: (a) a frame to which a pair of front wheels and a rear wheel assembly of the riding lawn care vehicle are attachable; (b) an engine mounted to the frame substantially between the front wheels; (c) a steering assembly having steering levers operably coupled to respective ones of the front wheels of the riding lawn care vehicle via respective hydrostatic drive pumps driven by the engine; (d) a support platform coupled to the frame rearward of the engine to support a standing rider; and (e) a front mount assembly configured to detachably couple the riding lawn care vehicle to an attachment that enables performance of a yard maintenance activity, where (f) a majority of the support platform is disposed rearward of an axis of rotation of the front wheels and forward of an axis of rotation of the rear wheel assembly. 1. A riding lawn care vehicle comprising:a frame to which a pair of drive wheels of the riding lawn care vehicle are operably coupled;an engine operably coupled to the frame and disposed substantially between the drive wheels;a steering assembly comprising control levers operably coupled to respective ones of the drive wheels of the riding lawn care vehicle via respective hydrostatic drive pumps driven by the engine, the steering assembly enabling steering of the riding lawn care vehicle based on drive speed control of the drive wheels responsive to positioning of the control levers of the steering assembly;a support platform operably coupled to the frame to support a standing rider at a rear of the riding lawn care vehicle; anda cutting deck operably coupled to the frame,wherein the steering assembly is disposed at an operating station, the operating station being disposed to extend substantially upward relative to a plane in which the frame lies, andwherein the control levers are disposed substantially between a front support bar and a back support bar, the front support bar having a width that is larger than a width ...

SINGLE PEDAL PROPULSION SYSTEM FOR STRAIGHT TRAVEL OF WORK VEHICLE

A work vehicle is disclosed with a propulsion system that is selectively operable in a first, turning mode or a second, straight mode. The vehicle includes a first traction device, a second traction device, a first steering input, and a second steering input. In the first, turning mode, an operator is able to steer the vehicle left, right, or straight by independently operating the first and second traction devices via the first and second steering inputs. In the second, straight mode, the operator is able to steer the vehicle straight by operating both the first and second traction devices together via one of the first and second steering inputs. 1. A work vehicle that is selectively operable in a first steering mode and a second steering mode , the work vehicle comprising:a chassis;a first traction device supporting the chassis;a second traction device supporting the chassis;a first steering input device that is configured to control movement of the first traction device in the first steering mode; anda second steering input device configured to control movement of (i) the second traction device in the first steering mode and (ii) the first traction device and the second traction device in the second steering mode,wherein the work vehicle is configured to enter the first steering mode by default in response to the work vehicle restarting.2. The work vehicle of claim 1 , wherein the first traction device is configured to move independently of the second traction device in the first steering mode.3. The work vehicle of claim 2 , wherein the first traction device is configured to move faster than the second traction device in the first steering mode to turn the work vehicle right or left.4. The work vehicle of claim 1 , wherein the first traction device is configured to move together with the second traction device in the second steering mode to steer the work vehicle straight.5. The work vehicle of claim 1 , wherein the work vehicle is configured to switch from the ...

STEERING APPARATUS FOR AN AGRICULTURAL VEHICLE

A steering apparatus for an agricultural vehicle includes a vehicle axle suspended in an oscillating or resilient manner, steerable wheels located on the vehicle axle, and an actuating apparatus for influencing a steering angle which is adjustable on the steerable wheels. A device actively limits an oscillating angle or deflection path arising on the vehicle axle. Moreover, the device operably activates a control unit according to a full steering angle to be anticipated on the steerable wheels as a result of travel. 1. A steering apparatus for an agricultural vehicle , comprising:a vehicle axle suspended in an oscillating or resilient manner;steerable wheels located on the vehicle axle;an actuating apparatus for influencing a steering angle which is adjustable on the steerable wheels; anda device actively limiting an oscillating angle or deflection path arising on the vehicle axle;wherein, the device operably activates a control unit according to a full steering angle to be anticipated on the steerable wheels as a result of travel.2. The steering apparatus of claim 1 , wherein the device reduces a maximum permitted oscillating angle or deflection path relative to structurally fixedly predetermined end stops.3. The steering apparatus of claim 1 , wherein the control unit extrapolates an imminent execution of a turning maneuver or parking maneuver on the basis of characteristic evidence.4. The steering apparatus of claim 3 , wherein the device is activated by the control unit for limiting the oscillating angle or deflection path.5. The steering apparatus of claim 3 , further comprising a navigation system coupled to the control unit for detecting a current vehicle position.6. The steering apparatus of claim 5 , wherein the current vehicle position comprises characteristic evidence used by the device for limiting the oscillating angle or deflection path.7. The steering apparatus of claim 3 , further comprising a cartographic memory including travel path data of the ...

Active steering system and grounds maintenance vehicle including same

A small radius- or zero radius-turn vehicle that may be steered by differentially-driven rear drive wheels and by at least one electronically-controlled, steerable front wheel. A device, e.g., one or more levers, may be provided that controls both speed and direction of the drive wheels. A sensor may be provided that detects a position of the lever(s). A controller may calculate a steering angle of the front wheel based upon the position, and issue a command to an actuator associated with the front wheel. The actuator may rotate the front wheel to an electronically calculated steering angle in response to the command.

Device and method of controlling transport facility

FIELD: transport. SUBSTANCE: transport facility comprises hydraulic drive system with open circuit. Said system comprises first and second hydraulic engine with variable operating volume to drive excavating appliances, and control device to vary operating volume of said first and second hydraulic engines. Method of turning said transport facility consists in selecting transport facility motion direction and carrying operating volumes of one of said engines. Thereafter, transport facility is turned. EFFECT: better control. 19 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 429 986 (13) C2 (51) МПК B62D 11/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008130868/11, 21.12.2006 (24) Дата начала отсчета срока действия патента: 21.12.2006 (73) Патентообладатель(и): КЕЙТЕРПИЛЛАР С.А.Р.Л. (CH) R U Приоритет(ы): (30) Конвенционный приоритет: 28.12.2005 EP 05113048.2 (72) Автор(ы): СМИТ Эндрю Джон (GB) (43) Дата публикации заявки: 10.02.2010 Бюл. № 4 2 4 2 9 9 8 6 (45) Опубликовано: 27.09.2011 Бюл. № 27 (56) Список документов, цитированных в отчете о поиске: US 5282516 А, 01.02.1994. US 4457387 А, 03.07.1984. RU 48921 U1, 10.11.2005. US 5529134 A, 26.06.1996. SU 1636288 A1, 23.03.1991. 2 4 2 9 9 8 6 R U (86) Заявка PCT: EP 2006/012395 (21.12.2006) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 28.07.2008 (87) Публикация заявки РСТ: WO 2007/073925 (05.07.2007) Адрес для переписки: 103735, Москва, ул. Ильинка, 5/2, ООО "Союзпатент", пат. пов. Ю.В.Облову, рег.№ 905 (54) УСТРОЙСТВО И СПОСОБ РУЛЕВОГО УПРАВЛЕНИЯ ТРАНСПОРТНЫМ СРЕДСТВОМ (57) Реферат: Изобретение относится к области транспортного машиностроения, в частности к транспортным средствам и способам его управления. Транспортное средство имеет систему гидропривода с разомкнутым контуром. Система гидропривода содержит первый и второй гидравлические двигатели с переменным рабочим объемом для приведения в ...

Electric drive system with plural motors

本发明提供了一种电驱动系统(26)，其具有第一和第二输出元件(34，36)和具有旋转轴线的驱动轴(31)。多个电动机(28a，28b，28c)邻近所述驱动轴布置。每个电动机都具有与所述驱动轴驱动接合且与所述驱动轴基本上平行的输出轴(29a，29b，29c)。差速转向系统(40)可操作地设置在所述驱动轴与所述第一和第二输出元件之间。所述差速转向系统包括可操作地接合在所述驱动轴和所述第一输出元件之间以及可操作地接合在所述驱动轴和所述第二输出元件之间的第一行星齿轮组件(42)。所述第一行星齿轮组件具有与所述驱动轴的旋转轴线基本上对准的旋转轴线。转向马达(70)与所述差速转向系统可操作地接合并且可操作以同时调节所述第一和第二输出元件的相对旋转速度。

Steering device for tracked vehicle

A kind of omnidirectional's differential driving steering wheel

本发明公开了一种全向差分驱动舵轮，包括固定座、驱动装置和分布在固定座两侧的驱动轮，所述驱动装置包括驱动电机和差速器，所述驱动电机与差速器驱动连接；所述差速器的两输出轴分别轴轮连接所述驱动轮。该差分驱动舵轮设置有采用驱动电机驱动连接的差速器，差速器的两输出轴分别轴轮连接驱动轮，当AGV小车在转向时，差速器控制两个驱动轮的转速不同，使内侧的驱动轮速度降低，外侧的驱动轮速度增加，驱动轮通过转向时的速度差来进行相应的转动，防止与地面发生滑动摩擦而磨损驱动轮。

Side Clutch Structure of Vehicle

본 발명은 조향 조작부의 작동에 기초하여, 각각 구동 가능한 한 쌍의 주행 장치를 구비하는 작업 차량의 사이드 클러치 구조로서, 미션 케이스에 설치된 지지축에 지지되어, 엔진의 구동력에 의해 회전 구동되는 센터 기어; 센터 기어의 좌우 양측에서, 지지축에 대하여 상대 회전 가능하게 설치되고, 지지축을 따라 슬라이딩 이동되어 센터 기어와 선택적으로 맞물리거나 맞물림이 해제되는 좌우 한 쌍의 사이드 기어; 좌우 한 쌍의 사이드 기어의 각각의 이동에 따라, 좌우 한 쌍의 사이드 기어의 가압 부재에 의해 가압되어 작동되는 좌우 한 쌍의 클러치 부재; 및 좌우 한 쌍의 사이드 기어의 이동을 조작하는 사이드 기어 조절 수단을 구비하는 작업 차량의 사이드 클러치 구조에 관한 것이다. The present invention is a side clutch structure of a working vehicle having a pair of driving devices each capable of being driven based on the operation of a steering control unit, and is supported by a support shaft installed in a transmission case, and is rotated by the driving force of the engine. ; A pair of left and right side gears installed at both left and right sides of the center gear so as to be rotatable relative to the support shaft and slidably moved along the support shaft to selectively engage or disengage with the center gear; A pair of left and right clutch members that are pressed and operated by pressing members of the left and right pair of side gears according to each movement of the pair of left and right side gears; And a side gear adjusting means for operating the movement of a pair of left and right side gears.

Traveling device of heavy equipment crawler type

개시된 내용은, 무한궤도형 굴삭기의 좌,우측 주행장치와 작업장치를 동시에 구동시켜 복합작업을 하는 경우, 운전자가 느낄 만큼의 주행속도의 감속 또는 증속되는 것을 방지하여 조작성을 향상시킬 수 있도록한 것으로, The disclosed contents are to improve the operability by preventing the driver from decelerating or increasing the speed as much as the driver feels when performing the combined work by simultaneously driving the left and right traveling devices and the work device of the crawler excavator. , 본 발명의 실시예에 의한 무한궤도형 중장비의 주행장치는, 가변용량형 제1,2유압펌프, Traveling device of the crawler type heavy equipment according to an embodiment of the present invention, the variable displacement first, second hydraulic pump, 제1유압펌프의 제1센터바이패스통로에 설치되는 좌측 주행모터용 절환밸브 및 작업장치용 절환밸브, A switching valve for the left traveling motor and a switching device for the work device installed in the first center bypass passage of the first hydraulic pump, 제2유압펌프의 제2센터바이패스통로에 설치되는 우측 주행모터용 절환밸브 및 작업장치용 절환밸브, A switching valve for a right traveling motor and a switching valve for a work device installed in a second center bypass passage of a second hydraulic pump; 제2센터바이패스통로의 상류측에 설치되고, 주행장치와 작업장치를 동시에 구동시키는 작업모드시 외부로부터 신호압 공급으로 절환되며, 절환시 제1유압펌프로부터의 작동유를 좌측 및 우측 주행모터용 절환밸브에 각각 공급하고, 제2유압펌프로부터의 작동유를 작업장치용 절환밸브에 공급하는 주행직진밸브, It is installed on the upstream side of the second center bypass passage, and is switched to the supply of signal pressure from the outside in the working mode to drive the traveling device and the working device at the same time, and the hydraulic oil from the first hydraulic pump is switched to A traveling straight valve for supplying the switching valve and supplying the hydraulic oil from the second hydraulic pump to the switching valve for the working device, 제2센터바이패스통로의 상류측에서 분기된 유로와 제2센터바이패스통로를 병렬연결하는 합류통로에 설치되고, 주행장치와 작업장치를 동시에 구동시키는 작업모드시 외부로부터 신호압 공급으로 절환되며, 절환시 작업장치에 발생되는 부하압력이 주행장치의 압력보다 상대적으로 높은 경우에 작업장치에 공급되는 작동유가 합류통로를 통하여 주행장치쪽으로 공급되는 것을 차단하는 가변 오리피스, It is installed in the conduit which connects the flow path branched upstream of the 2nd center bypass passage ...

SINGLE-LEVER CONTROL DEVICE FOR TWO-CIRCLE GEARBOX

Steering control for tracked vehicle - has reversing control cam pivoted at end of steering column

The mechanical steering control for a tracked vehicle has a reversing control cam (2) which is pivoted about a transverse axis (18) through the steering column (13) and can assume one of two stable settings (A,B) above and below the steering column. The cam is linked to the steering gear by a steering rod, with the two positions providing opposing steering forces for forward and reverse travel. The cam provides a simple direction change control so that the same steering direction is obtained with the same deflection of the steering wheel for forward and reverse. No complex compensating circuits are required, using only a direct mechanical steering rod control.

Steering device for caterpillars, especially over snow vehicles

A kind of full landform creeper truck of electric drive radial type without fluid-link steering linkwork

本发明涉及一种电驱动铰接式全地形履带车的无液压转向铰接机构，属于全地形履带车的部件。转角保持器控制阀连接转角保持器油缸，电动机带动液压泵转动，液压泵连接液压油箱与俯仰控制阀；俯仰控制阀连接俯仰油；铰接支座与俯仰架相连，俯仰油缸连接铰接支座与俯仰架，俯仰架与扭转架相连，转角保持器油缸左右两侧对称布置，与俯仰架和扭转架相连，扭转架与连接盘相连。优点是：大幅降低了液压系统的功率消耗，延长了液压系统零部件寿命，降低整车质量，大幅提升了车辆的可靠性，驾驶员可以更容易掌握车辆运行姿态，不会阻滞感，提高操控性，车辆续航里程，提升了车辆在直线行驶和保持转向过程中的稳定性。

Hydraulic-steering-free hinging mechanism of electrically-driven hinged all-terrain crawler

本发明涉及一种电驱动铰接式全地形履带车的无液压转向铰接机构，属于全地形履带车的部件。转角保持器控制阀连接转角保持器油缸，电动机带动液压泵转动，液压泵连接液压油箱与俯仰控制阀；俯仰控制阀连接俯仰油；铰接支座与俯仰架相连，俯仰油缸连接铰接支座与俯仰架，俯仰架与扭转架相连，转角保持器油缸左右两侧对称布置，与俯仰架和扭转架相连，扭转架与连接盘相连。优点是：大幅降低了液压系统的功率消耗，延长了液压系统零部件寿命，降低整车质量，大幅提升了车辆的可靠性，驾驶员可以更容易掌握车辆运行姿态，不会阻滞感，提高操控性，车辆续航里程，提升了车辆在直线行驶和保持转向过程中的稳定性。

Working vehicle

一种顺利地进行作业机转向操作的作业机。具备左右一对的履带式行走装置(1R，1L)、和具有单一的转向操纵件(42)的操纵部(7)，并设置有多个操作区域，用于使上述各行走装置的驱动状态在从上述单一的转向操纵件的中立位置(n)向左右的各旋转方向上不同，其中，各旋转方向上的一个操作区域的操作行程设定成大于其他操作区域的操作行程。通过使旋转时通常采用的第2操作区域为更大的范围，容易防止过度转向。

Steering system for endless chain driven vehicles - has hydraulically braked or driven epicyclic gear steering trim unit

The track drive units consists of two output differentials whose outer ring gear wheel speed is controlled by a unit containing two hydrostatic pumps whose output shafts can be selectively regulated to run at uneven or the same speeds. The one shaft is directly coupled to one differential side and the second shaft is coupled to a fine trim unit consisting of an epicyclic gear whose outer ring wheel speed is retarded or accelerated by a hydrostatic trim pump. The trim pump is connected to a valve to control a high pressure hydraulic flow and return.

Back-up steering system for track laying vehicles

A back-up steering system is provided having a hydraulic pump, an accumulator, a mode control valve, a main solenoid valve, and a pair of back-up solenoid valves. The system is connected, to left and right service brakes. The hydraulic pump and the accumulator are both connected to a main hydraulic line. The main solenoid valve is connected to the main line, a common fluid sump, and the mode control valve. The back-up solenoid valves are each connected to the main line, the sump and the mode control valve. The service brakes are connected to the mode control valve. During normal operation the mode control valve is set so that the service brakes are in fluid communication with the mode control valve and the main solenoid valve. When the main solenoid valve is actuated the pump is in fluid communication with both service brakes for simultaneous actuation thereof, in response to operator induced braking. At this time the back-up solenoid valves are disconnected from the service brakes due to the position of the mode control valve. During back-up or emergency operation the mode control valve is set so that the service brakes are in fluid communication with the mode control valve and the back-up solenoid valves. The service brakes are selectively brought into fluid communication with the pump and/or accumulator via selective actuation of the back-up solenoid valves. By selectively actuating either the left or right service brake the vehicle can be steered even though the primary steering system is not functioning properly. At this time the main solenoid valve is effectively disconnected from the service brakes due to the position of the mode control valve. Electrical input to the various valves of the system is provided by the vehicle alternator and in the event of alternator failure, the valves are powered by the vehicle battery. Hydraulic fluid pressure is provided under normal conditions by the hydraulic pump and in the event of pump failure, the accumulator acts as a ...

Tracked vehicle steering control - uses slipping clutch in front of torque converter and gearbox to prevent overloading of engine

The installation is used to control the steering of a tracked vehicle, obtained by superimposing additional speeds onto the output reduction units for the track drives. A torque converter is fitted to the gearbox driven by the engine and a slipping clutch is provided in front of the torque converter. The degree of clutch slip is automatically controlled by the steering mechanism of the vehicle. The engine is permitted to turn at full power, after having suppressed the direct drive on the torque converter, as necessary, by use of the accelerator.

DUAL CIRCUIT HYDROSTATIC TRANSMISSION CONTROL EQUIPMENT

Appareillage de commande de transmission hydrostatique à double circuit. Deux transmissions hydrostatiques comprennent chacune un élément moteur à course variable qui est soumis à une pression de commande qui détermine sa course. Un distributeur à proportionnalité règle cette pression de commande de façon à déterminer le sens de marche et la vitesse à laquelle le véhicule se déplace par une vitesse uniforme des deux transmissions. Des distributeurs de direction modifient la vitesse d'au moins l'une des transmissions de manière à diriger le véhicule. Un élément de commande est relié aux distributeurs par des tringlages de façon que lorsqu'il se déplace autour d'un premier axe, il détermine la vitesse et le sens de marche du véhicule et que, lorsqu'il se déplace dans l'un ou l'autre sens autour d'un second axe, il dirige ledit véhicule. Application à un tracteur à chenilles. Double circuit hydrostatic transmission control gear. Two hydrostatic transmissions each include a variable stroke drive element which is subjected to a control pressure which determines its stroke. A proportional valve adjusts this control pressure so as to determine the direction of travel and the speed at which the vehicle is traveling by a uniform speed of the two transmissions. Steering distributors change the speed of at least one of the transmissions to steer the vehicle. A control element is connected to the distributors by linkages so that when it moves around a first axis, it determines the speed and direction of travel of the vehicle and that, when it moves in one or the other direction around a second axis, it steers said vehicle. Application to a crawler tractor.

Patent FR2372468B1

Self-propelling steerable single-axle working machine for land or forestry work, for example, has hydraulic motors each connected to drive shaft of running axle and installed inside machine casing

The self-propelling steerable single-axle working machine (1) has a running axle (2) with axle stubs (31,32) on both sides of a machine casing (15). Hydraulic motors each connected to a drive shaft (33,34) of the running axle are installed at least approximately inside the machine casing. The hydraulic motor are detachably fastened on axle stubs which are removable from the machine casing. Each drive shaft is constructed by two shaft sections (45,47:46,48) which are connectable and separable by a manually operated coupling (49,50).

Steering mechanism for a vehicle

Abstract of the Disclosure Steering Mechanism for a Vehicle A vehicular steering mechanism of overly complex construction is known which displaces a left turn control valve or a right turn control valve through separated cams in response to the rotation of a steering wheel. The subject steering mechanism is simpler, more economical and more compact by including an input shaft and a single actuating cam which are conjointly rotatable away from a neutral position in either direction. The actuating cam defines a profiled guide slot of a substantially spiral shape, and a cam follower assembly is cooperatively associated therewith including a cam following roller wheel that is received in the profiled guide slot. The cam follower assembly includes a bellcrank supporting the roller wheel and indirectly connected to a left turn control valve and a right turn control valve. The vehicle is steered by the controlled rotation of the bellcrank and the subsequent displacement of the control valves and. The steering mechanism also includes an effective centering and stop assembly.

Steering wheel steering judgment and corner calculation method for tracked vehicle

本发明公开了一种履带式车辆的方向盘转向判断与转角计算方法，其步骤是：首先通过判断转向盘转向，实现对转向信号的读取，此后确定转向盘圈数从而实现对于转向角度初始值的替换，而后通过转向泵控制转向动作的完成，确保转向盘转角处于一定的误差范围内，实现精准转向。本发明能够提高驾驶员在进行转向操作时的安全性与方向感。

Patent FR2034959A2

Omni direction vehicle

Single pedal propulsion system for straight travel of work vehicle

A work vehicle is disclosed with a propulsion system that is selectively operable in a first, turning mode or a second, straight mode. The vehicle includes a first traction device, a second traction device, a first steering input, and a second steering input. In the first, turning mode, an operator is able to steer the vehicle left, right, or straight by independently operating the first and second traction devices via the first and second steering inputs. In the second, straight mode, the operator is able to steer the vehicle straight by operating both the first and second fraction devices together via one of the first and second steering inputs.

Row-crop tractor

A row-crop tractor is provided. The row-crop tractor comprises a tractor frame structure having a front portion and a rear portion. Two front wheels are rotatable mounted to the front portion of the tractor frame structure. At least a rear wheel is mounted to the rear portion of the tractor frame structure. A drive mechanism is mounted to the front portion of the tractor frame structure and connected to the two front wheels for controllably driving the same in dependence upon a control signal received from an operator of the row-crop tractor such that one front wheel is driven independent from the other. A front farm implement connecting mechanism is disposed at a front end of the front portion of the tractor frame structure and an operator seat mounted to the front portion of the tractor frame structure in close proximity to the front end of the front portion of the tractor frame structure such that the operator of the row-crop tractor is enabled to reach a front farm implement connected to the front farm implement connecting mechanism.

Steering apparatus of working vehicle

좌우 한쌍의 크롤러형 조향장치를 구비한 작업기의 조향조작을 충격이 적고 원활하게 하는 것이 가능한 조향장치가 제공된다. 이 조향장치는 사이드클러치(20L, 20R)가 오프된 한쪽의 주행장치(1L, 1R)를 감속 또는 제동하는 선회용 전동수단이 구비되고, 조향조작되면 우선 한쪽의 주행장치(1L, 1R)의 사이드클러치(20L, 20R)가 오프되고, 계속되는 같은 방향의 조향조작에 의해 사이드클러치(20L, 20R)가 오프된 주행장치(1L, 1R)와 선회용 전동수단을 선회용 클러치(90L, 90R)를 통하여 연동연결하도록 구성되어 있다. 이 조향장치에는 사이드클러치(20L, 20R)의 온 오프에 상관없이 주행장치(1L, 1R)에 낮은 토크를 상시 전달하는 슬립가능한 낮은 토크 전달수단을 장비하고 있다. There is provided a steering device capable of smoothly operating the steering machine with a pair of right and left crawler steering devices with little impact. This steering apparatus is provided with a turning transmission means for decelerating or braking one traveling apparatuses 1L and 1R in which side clutches 20L and 20R are turned off, and when the steering operation is performed, first of the traveling apparatuses 1L and 1R are operated. The side clutches 20L and 20R are turned off, and the turning devices 1L and 1R and the turning transmission means in which the side clutches 20L and 20R are turned off by the steering operation in the same direction are continuously turned to the turning clutches 90L and 90R. It is configured to interwork through. This steering apparatus is equipped with a slippery low torque transmission means which always transmits low torque to the traveling devices 1L and 1R regardless of whether the side clutches 20L and 20R are turned on or off.

Vehicle steering arrangement and method

Vehicles with open loop hydraulic steering systems may suffer from jerky steering due to the necessity to have safety valves in the open loop system to prevent uncontrolled vehicle movement. Traditional open loop steering arrangements allow steering by controlling fluid quantities flowing from the pump to the drive motors. The disclosed vehicle has an open loop hydraulic drive system including first and second variable displacement motors for driving ground engaging mechanisms at first and second sides of the vehicle, respectively. The system includes a control mechanism configured for steering the vehicle by changing the displacement of one of the first and second motors. This allows the operator to change the drive motor speed range during travel.

WORK VEHICLE

Um veículo de trabalho é exposto, com um sistema de propulsão que é operável seletivamente em um primeiro modo de curva ou um segundo modo retilíneo. O veículo inclui um primeiro dispositivo de tração, um segundo dispositivo de tração, uma primeira entrada de direção, e uma segunda entrada de direção. No primeiro modo de curva, um operador é capaz de orientar o veículo para esquerda, direita, ou retilineamente por operar independentemente o primeiro e o segundo dispositivos de tração via a primeira e a segunda entradas de direção. No segundo modo retilíneo, o operador é capaz de orientar o veículo retilineamente por operar tanto o primeiro quanto o segundo dispositivos de tração conjuntamente via uma da primeira e da segunda entradas de direção. A work vehicle is exposed, with a propulsion system that is selectively operable in a first curve mode or a second straight mode. The vehicle includes a first traction device, a second traction device, a first steering input, and a second steering input. In the first turn mode, an operator is able to steer the vehicle left, right, or straight by independently operating the first and second traction devices via the first and second steering inputs. In the second rectilinear mode, the operator is able to steer the vehicle rectilinearly by operating both the first and second traction devices together via one of the first and second steering inputs.

Hydraulic steering system for full-tracked vehicles

A hydraulic system for controlling hydraulic motors (10,11) for driving a tracked vehicle which circuit utilizes a single manual control lever (23) to control valve control units (19, 20, 21, 22) to direct pilot pressure.to actuate bi-directional valves (12, 13) that control the direction of movement of the hydraulic motors (10, 11).

Control for hydrostatic transmissions

A self-propelled vehicle is provided with a main speed control lever and a brake for preventing rotation of drive wheels. When an operator places the main speed control lever in a stop position, the vehicle's transmission in shifted to a neutral or near-neutral position and the brake is engaged.

Control system, work vehicle control method, and work vehicle

This motor grader, which is a work vehicle, comprises a steering mechanism (66) and a control unit (51). The control unit (51) controls the steering mechanism (66) so that the rate of change in advancing direction per unit travel distance of the motor grader is kept constant.

Vehicle Steering Arrangement and Method

Vehicles with open loop hydraulic steering systems may suffer from jerky steering due to the necessity to have safety valves in the open loop system to prevent uncontrolled vehicle movement. Traditional open loop steering arrangements allow steering by controlling fluid quantities flowing from the pump to the drive motors. The disclosed vehicle has an open loop hydraulic drive system including first and second variable displacement motors for driving ground engaging mechanisms at first and second sides of the vehicle, respectively. The system includes a control mechanism configured for steering the vehicle by changing the displacement of one of the first and second motors. This allows the operator to change the drive motor speed range during travel.

Steer-drive for vehicles

A steer-drive interposes respective left and right orbital gear drives (20, 22) into the vehicle drivetrain between the engine/transmission (10, 12) and the respective propulsion axles associated with each side of the vehicle. The orbital drive units comprise only an input gear (54) and an output gear (58) interconnected by at least one orbiting cluster gear (60, 61) that is supported in a rotating housing and also meshes only with the input and output gears. The orbital units are designed so that (a) when rotation of the housing (64) is prevented, driving torque is transferred at speed ratios selected to be as close to 1:1 as is practical, and (b) when steering torque causes rotation of the housing, the steering torque is added simultaneously in equal and opposite directions to the orbital units, causing the drive on one side of the vehicle to slow down at the same rate. The steer-drive is appropriate for the drivetrains of tracked vehicles, boats and airplanes.

Self-propelled lawnmower or similar has setting device for rear wheel or wheels which can lock it for travel in straight line

The lawnmower has a steering device and two driven frond wheels powered by a diesel engine. A setting device (11) is fitted to the rear wheel or wheels (3), so that this wheel/these wheels can be locked in position for traveling in a straight line. The setting device acts on a lever (12) fitted to a pivot bolt (5).

STEERING CONTROL FOR VEHICLE

In a steering system of a vehicle which can be controlled by a drive, a control lever is assigned operationally to a control arrangement which has a plurality of positions and four valves which control the actuation of a pair of distributor valves after one or more of the four valves have been placed, according to a preselection, in a fluid connection with a hydraulic circuit in order to feed a plurality of shuttle valves.

Hydraulic traveling vehicle and method of controlling hydraulic traveling vehicle

Steering method and steering system for tracklaying vehicle

A steering method and steering system which enable a minimum turn radius more than the discharge capacities of a hydraulic motor and a hydraulic pump and which positively prevent the unstable traveling and turning behavior of a vehicle when the vehicle makes a pivot turn. The vehicle is provided with a pair of brakes for right and left output shafts and designed to transmit the driving force of the hydraulic motor to the output shafts through planetary gear mechanisms. During a pivot turn of the vehicle, an operation of the brake of either one of the right and left output shafts and a transmission of a driving force from the hydraulic motor to a planetary gear mechanism are simultaneously carried out for a specified period of time and thereafter, the transmission of the driving force from the hydraulic motor to the planetary gear mechanism is interrupted.

Double-flow transmission of transport vehicle with on-board turning method

Изобретение относится к двухпоточным трансмиссиям с дифференциальными механизмами распределения мощности гусеничных и колесных машин с бортовым способом поворота. Двухпоточная трансмиссия содержит коробку передач (КП) и механизм поворота (МП). Их входные звенья параллельно присоединены к двигателю. Каждый из бортовых суммирующих трехзвенных механизмов одним входным своим звеном соединен с выходным звеном (валом) КП, вторым входным своим звеном - с управляемым выходным звеном МП, а выходным своим звеном - с бортовым редуктором, установленным на соответствующем борту перед ведущим колесом движителя машины. Вторые входные звенья бортовых суммирующих трехзвенных механизмов взаимосвязаны посредством устройства с передаточным отношением минус 1. Предусмотрен центральный трехзвенный механизм. При этом два входных звена центрального трехзвенного механизма соединены соответственно с двигателем и с выходным звеном КП, а третье, выходное, звено - со входом МП. Бортовые суммирующие и центральный трехзвенные механизмы выполнены в виде планетарных рядов так, что с двигателем соединено его водило, с выходным звеном КП - солнце, а с входным звеном МП - эпицикл. Достигается повышение технико-эксплуатационных характеристик транспортных средств. 3 з.п. ф-лы, 2 ил., 1 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B62D 11/06 (13) 2 599 855 C1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2015126137/11, 30.06.2015 (24) Дата начала отсчета срока действия патента: 30.06.2015 (45) Опубликовано: 20.10.2016 Бюл. № 29 2 5 9 9 8 5 5 R U (54) ДВУХПОТОЧНАЯ ТРАНСМИССИЯ ТРАНСПОРТНОЙ МАШИНЫ С БОРТОВЫМ СПОСОБОМ ПОВОРОТА (57) Реферат: Изобретение относится к двухпоточным суммирующих трехзвенных механизмов трансмиссиям с дифференциальными взаимосвязаны посредством устройства с механизмами распределения мощности передаточным отношением минус 1. гусеничных и колесных машин с бортовым Предусмотрен центральный трехзвенный способом ...

Steering control system for tracked vehicle

A steering control system for a tracked vehicle includes a spring centered steering wheel which is rotatable in both directions to endstops. A steering control unit executes a transitional counter-rotation (TCR) mode algorithm which disables steering or counter-rotation when the gear lever moves from park to neutral or from park to neutral to gear while the clutch is disengaged. Steering function can be re-enabled by turning the steering wheel to its centered position and then turning the steering wheel in either direction away from its centered position, or by turning steering wheel towards one of its endstop positions (without centering the steering wheel). If steering or counter-rotating is enabled the second way, then during a transition period the turning rate as a function of the position of the steering wheel will be less than that of normal operation. If the steering wheel is then held at the endstop position, the control system will automatically and gradually increase the rate of turning (by increasing an electronic steering gain value) until full normal turning rate capability is attained.

Work vehicle

Vehicle steer drive

Steering and steering method

Drive and steer vehicle

A vehicle such as a lawn and garden tractor is adapted to utilize conventional steering and propel controls with a drive and steer type transmission. The transmission permits the vehicle to be driven and steered through its rear drive wheels, thereby permitting it to turn about one wheel and/or about an axis between its wheels. Front castered wheels enable the vehicle to be easily steered by the drive wheels. A conventional type steering wheel is provided with a mechanical linkage extending between it and the transmission. Conventional type foot control pedals are also provided to propel or power the vehicle in a forward or rearward direction and within a range of speeds. With conventional type steering and propel controls adapted to be utilized with the drive and steer type transmission, operation of spin-turn vehicles is made simple and more efficient as well as reducing the time required to learn to operate and maneuver the vehicle.

Drive for a vehicle, in particular for a track vehicle or a vehicle with lateral wheel guides

本发明涉及一种汽车、尤其是履带式汽车或者具有轮侧转向装置的汽车的驱动装置，它具有至少一个消耗电能的器件(8、9)和至少一个用于相应地提供电能的功率电子器件(功率电子装置)，功率电子装置(26)可以以沸腾冷却的方法通过流体来冷却。

PERFECTED HYDRAULIC CONTROL DEVICE, ESPECIALLY FOR TRACKED VEHICLES

L'invention concerne un dispositif perfectionné de commande hydraulique, notamment pour véhicules à chenilles. Les accouplements de direction 24, 25 sont commandés respectivement par deux clapets de commande 20, 21, actionnés par une pompe hydraulique principale 8. Chaque clapet peut passer d'un état neutre, pour lequel l'accouplement correspondant est engagé et la chenille associée est entraînée, à un etat d'alimentation pour lequel la chenille est débrayée. Une pompe hydraulique additionnelle 15 est reliée aux clapets 20, 21 de manière a maintenir le remplissage des canalisations hydrauliques 22, 23 lorsque l'un ou l'autre des clapets 20, 21 est à l'état neutre. Applications notamment dans les bulldozers et chargeurs à chenilles. The invention relates to an improved hydraulic control device, in particular for tracked vehicles. The steering couplings 24, 25 are controlled respectively by two control valves 20, 21, actuated by a main hydraulic pump 8. Each valve can pass from a neutral state, for which the corresponding coupling is engaged and the associated track is driven, to a power state for which the track is disengaged. An additional hydraulic pump 15 is connected to the valves 20, 21 so as to maintain the filling of the hydraulic pipes 22, 23 when one or the other of the valves 20, 21 is in the neutral state. Applications especially in bulldozers and track loaders.

Vehicle steering arrangement and method

Vehicles with open loop hydraulic steering systems may suffer from jerky steering due to the necessity to have safety valves in the open loop system to prevent uncontrolled vehicle movement. Traditional open loop steering arrangements allow steering by controlling fluid quantities flowing from the pump to the drive motors. The vehicle (10) as disclosed has an open loop hydraulic drive system (30) comprising first and second variable displacement motors (52,152) for driving ground engaging means (14,114) at first and second sides of the vehicle respectively. The system includes control means (36,136) for steering the vehicle (10) by changing the displacement of one of the first and second motors (52,152). This allows the operator to change the drive motor speed range during travel.

Steering system in emergency case for a rail gripping or for an endless-track vehicle

The emergency steering system for a tracked vehicle has an operating mode control valve (16) which in an emergency situation is controlled in such a way that the brakes (24A,24B) are hydraulically connected to this valve and to emergency valves (20A,20B), whereby the left and right brake is selectively hydraulically connected to the fluid pressure source (12,14) on the basis of a selective operating of one of the emergency valves, through which the vehicle can then be steered if the primary steering system does not work in accordance with requirements.

Single lever control for tracked vehicles - has two valve elements controlling each track through reduction valves to motors

Control device for tracked vehicles allowing single lever control of all vehicle movement, where the hydraulic feed to the hydraulic motors is affected by reduction valves, whose operators are arranged in the movement range of a pressure piece connected to a selector lever. The reduction valves are arranged at the corners of a square concentric to the hinge mid point of the selector lever. A centre line of the square runs parallel to the vehicle longitudinal axis. Specifically valve element controls fluid feed to the motor for the left track in the forwards sense, while a valve element controls the same track in the backwards sense. Similarly, valve elements control the right track. A maximum of tow reduction valves are simultaneously operated by the pressure piece connected to the selector lever.

Patent FR2497280A1

A.VEHICULE DE CHANTIER COMPRENANT DEUX POMPES P, P D'ENTRAINEMENT DE MOTEURS HYDRAULIQUES M, M DESTINES A DEUX DISPOSITIFS D'ENTRAINEMENT INDIVIDUELS OPPOSES ET UN MECANISME DE SOUPAPE FAISANT FONCTIONNER LE VEHICULE A FAIBLE VITESSE LORSQUE LE FLUIDE EST ENVOYE INDIVIDUELLEMENT DES MOTEURS AUX POMPES, ET A GRANDE VITESSE LORSQUE LE FLUIDE COMBINE DES POMPES EST ENVOYE AUX MOTEURS EN SERIE. B.VEHICULE CARACTERISE EN CE QU'IL EST MUNI D'UN DISPOSITIF DE COMMANDE 15 EMPECHANT LE VEHICULE DE PIVOTER LORSQU'IL SE DEPLACE A GRANDE VITESSE MEME LORSQUE CETTE COMMANDE EST EFFECTUEE PAR LE CONDUCTEUR A LA SUITE D'UNE FAUSSE MANOEUVRE. C.L'INVENTION S'APPLIQUE AUX PELLETEUSES ET AUTRES ENGINS DE CHANTIER. A. CONSTRUCTION VEHICLE CONSISTING OF TWO P, P PUMPS FOR DRIVING HYDRAULIC MOTORS M, M INTENDED FOR TWO OPPOSITE INDIVIDUAL DRIVING DEVICES AND A VALVE MECHANISM OPERATING THE VEHICLE AT LOW SPEED AT INDIVIDUAL MOTORS WHEN THE FLOW IS INDEPENDENTLY PUMPS, AND AT HIGH SPEED WHEN THE PUMPS COMBINED FLUID IS SENT TO ENGINES IN SERIES. B. VEHICLE CHARACTERIZED IN THAT IT IS EQUIPPED WITH A CONTROL DEVICE 15 PREVENTING THE VEHICLE FROM PIVOTING WHEN IT IS MOVING AT HIGH SPEED EVEN WHEN THIS COMMAND IS CARRIED OUT BY THE DRIVER FOLLOWING A WRONG MANEUVER. C. THE INVENTION APPLIES TO BACKHOES AND OTHER CONSTRUCTION EQUIPMENT.

Single pedal propulsion system for straight travel of work vehicle

A work vehicle is disclosed with a propulsion system that is selectively operable in a first, turning mode or a second, straight mode. The vehicle includes a first traction device, a second traction device, a first steering input, and a second steering input. In the first, turning mode, an operator is able to steer the vehicle left, right, or straight by independently operating the first and second traction devices via the first and second steering inputs. In the second, straight mode, the operator is able to steer the vehicle straight by operating both the first and second traction devices together via one of the first and second steering inputs.

Speed change operation device for vehicle

무단 변속기를 갖춘 차량용 변속 조작장치는 구동장치, 동력원, 그리고 동력원으로부터 구동장치로 동력을 전달하기 위한 무단 변속기를 갖추고 있다. 변속 조작장치는 변속 조작부재에 의해 회전하도록 작동되는 제 1가동부재; 무단 변속기의 속도를 변하게 하기 위해 직접 또는 전동수단을 통해 간접으로 무단 변속기의 변속 조작량 입력섹션에 연결된 제 2가동부재; 제 1가동부재를 피벗가능하게 지지하는 제 1회전지지축; 제 2가동부재를 피벗가능하게 지지하기 위해 제 1회전지지축과 평행하게 배치된 제 2회전지지축으로 구성되어 있다. 그리고 제 1 및 제 2가동부재는, 회전력이 제 1가동부재로부터 제 2가동부재로 전달되도록, 또한 제 2가동부재 단독으로도 독자적으로 회전할 수 있도록 연결되어 있다. Automotive transmission controls with continuously variable transmissions include a drive, a power source, and a continuously variable transmission for transmitting power from the power source to the drive. The shift operation apparatus includes a first movable member operated to rotate by the shift operation member; A second movable member connected to a shift input amount input section of the continuously variable transmission to change the speed of the continuously variable transmission directly or indirectly through a transmission means; A first rotation support shaft pivotally supporting the first movable member; It consists of a 2nd rotation support shaft arrange | positioned in parallel with a 1st rotation support shaft in order to pivotally support a 2nd movable member. The first and second movable members are connected so that the rotational force is transmitted from the first movable member to the second movable member, and the second movable member alone can rotate independently.

Working vehicle

The present invention is provided with an engine (5) installed on a traveling machine body (2), a straight traveling system transmission path having a first stepless transmission (17) and a turning system transmission path having a second stepless transmission (13) and the output of the straight traveling system transmission path and the output of the turning system transmission path are synthesized to drive left and right travel units (3). A control unit (814) that controls the output of the straight traveling system transmission path and the output of the turning system transmission path in an interlocking manner is provided. Upon detecting that the number of revolutions of the engine (5) has become a predetermined number of revolutions (R1) or lower, the control unit (814) executes a first control that forcibly sets a swash plate (708) of the second stepless transmission (13) to a neutral state.

HYDRAULIC SYSTEM FOR TRACK CHAIN VEHICLES

VEHICLE CONTROL UNIT.

Steering control for tracked vehicles

The steering control system has a clutch disengagement sensor for generating a disengagement signal when the clutch is disengaged and a shift lever sensor for generating shift lever signals representing the position of the shift lever. A rotary position sensor is coupled to the steering member and generates a steering signal representing a position of the steering member. The microprocessor-based control unit comprises a member for generating the steering control signal as a function of the disengagement signal, the shift lever signals and the steering signal. It also has a member for disabling turning of the vehicle when the shift lever is moved out of the park position while the clutch is disengaged and steering member is at a first non-centred displaced position.

Steering traction control apparatus for a work machine

A steering traction control apparatus (10) for a track laysing work machine (12) includes first and second speed sensors (64, 66) that produce a slip signal responsive to the difference in rotational velocity of first and second axles (24, 26). A controller (60) receives the slip signal and responsively supplies a steering output signal in response to the magnitude of the slip signal.

Automatic tracking control for work machines

In many applications, it is desirable to have work machines automatically maintain a desired speed and heading. Provided is an electronic control (200) connected with left and right hydraulic motor assemblies (285,295) that drive left and right ground engaging propulsion mechanisms (280,290), left and right speed sensors (220,230), and on operator input (210).

Power transmission mechanism

Hydrostatic steering and drive unit for caterpillar vehicles

Steer-drive for vehicles

A steer-drive interposes respective left and right orbital gear drives (20, 22) into the vehicle drivetrain between the engine/transmission (10, 12) and the respective propulsion axles associated with each side of the vehicle. The orbital drive units comprise only an input gear (54) and an output gear (58) interconnected by at least one orbiting cluster gear (60, 61) that is supported in a rotating housing and also meshes only with the input and output gears. The orbital units are designed so that (a) when rotation of the housing (64) is prevented, driving torque is transferred at speed ratios selected to be as close to 1:1 as is practical, and (b) when steering torque causes rotation of the housing, the steering torque is added simultaneously in equal and opposite directions to the orbital units, causing the drive on one side of the vehicle to slow down at the same rate. The steer-drive is appropriate for the drivetrains of tracked vehicles, boats and airplanes.

Tracked vehicle steering control system with steering pump feedback

A tracked vehicle has an electrohydraulic drive/steering system having an engine driven variable displacement hydraulic steering pump which drives a hydraulic steering motor which is coupled to a differential track drive mechanism via a transmission with multiple gear ratios. A steering wheel is coupled to a variable friction device which produces a variable friction force which resists rotation of the steering wheel. A control system is responsive to a position of the steering wheel and controls the steering pump displacement and controls the friction device. The control system sets the variable friction device to its high friction level when a limit of the steering pump displacement is reached when the transmission is in a higher one of its gear ratios.

IMPROVEMENTS ADDED TO HYDRAULIC CONTROL DEVICES.

Patent DE3208261C2

Omni Direction Vehicle

An omni direction vehicle with a frame having a round surface about its perimeter with no apparatus mounted on the frame extending beyond the perimeter. Two independent drive wheels located on an axis through the center of the frame are mounted at the same distance from a central vertical axis through the frame. Each wheel is powered independently of the other and can rotate at variable speeds in either direction. The vehicle is capable of movement in any direction by rotating the axis of the drive wheels to a position which is perpendicular to the desired direction of travel. The vehicle can spin about its vertical axis such that the axis of the drive wheels can be oriented at any direction without changing the original footprint of the space that the frame occupies over the ground. Thus, the vehicle requires a zero turning radius and requires only the space it occupies to change its forward orientation.

Drive for a vehicle, especially a tracked vehicle or a vehicle with wheel-based steering

A drive for a vehicle, especially a tracked vehicle or a vehicle with wheel- based steering, with at least one component which consumes electric energy and at least one power electronic component (power electronics) for providing the necessary electric energy, where the power electronics can be cooled with a fluid by the evaporative cooling process.

Hydraulic traveling vehicle and control method of hydraulic traveling vehicle

旋回走行中に作業機の駆動・停止が行われた場合にショックが生じることを抑えることができる油圧走行車両および油圧走行車両の制御方法を提供する。油圧走行車両では、コントローラー（６６）は、合分流弁（２３）が分流状態とされ且つ旋回走行が行われている状態においてブレード（５）を駆動する場合、ブレード圧力検出部（７９）が検出したパイロット圧力が所定の閾値以上の場合は合分流弁（２３）を合流状態に切り替え、ブレード圧力検出部（７９）が検出したパイロット圧力が所定の閾値より低い場合は合分流弁（２３）を分流状態に維持する。 Provided are a hydraulic traveling vehicle and a hydraulic traveling vehicle control method capable of suppressing the occurrence of a shock when a work machine is driven / stopped during turning. In the hydraulic traveling vehicle, the controller (66) detects the blade pressure detection unit (79) when the blade (5) is driven in a state where the joint / divergence valve (23) is in a diverted state and is turning. When the pilot pressure is equal to or higher than a predetermined threshold, the merging / separating valve (23) is switched to the merging state, and when the pilot pressure detected by the blade pressure detecting unit (79) is lower than the predetermined threshold, the merging / reducing valve (23) is switched. Maintain a diverted state.

SINGLE LEVER DIRECTIONAL CONTROL HYDRAULIC DEVICE FOR VEHICLE

Tracked vehicle steering control system with steering pump feedback

Device for switching the steering gear of a tracked vehicle

The invention relates to a device (1) for switching the steering gear of a tracked vehicle, in which the transmission direction of the steering movement of a steering column (3) to a steering rack can be reversed in the event of a change in driving direction. In order to obtain that the device (1) contains as few safety-critical components as possible, is of space-saving construction and can be retro-fitted to operational vehicles, the invention proposes that the device (1) comprises two gearwheels (4, 5) which are arranged axially in series and fixedly, with regard to their axial position, on the steering column (3), which gearwheels (4, 5) can in each case be rotationally fixedly connected (coupled) to the steering column (3), or decoupled from the steering column, by means of a switchable coupling (6, 7), wherein the two gearwheels (4, 5) engage into in each case one toothed rack (8, 9), which toothed racks (8, 9) are arranged on opposite sides with respect to the rotational axis (2) of the steering column (3) and are fastened to a support part (10) which is moveable radially with respect to the steering column (3) and can be connected to the steering rack.

Drive for a vehicle, in particular for a track vehicle or a vehicle with lateral wheel guides

The drive has an electrical machine for dissipating electrical energy, and a power electronics (26) for supplying electrical energy, where the power electronics is cooled by cooling fluid in a boiling cooling method. A fluid- or air heat exchanger or condensator (25) is provided for heat-exchange and condensation of steam arising during the cooling process and is cooled by ambient air of a vehicle (27). The housing of the electronics and the heat exchanger are connected with each other, such that pressures in the housing and the exchanger have a different level.

Patent FR2397969B1

Vehicle transmission

A vehicle transmission having a pair of left and right HSTs for driving respective axles is applicable for a riding lawn mower. The transmission comprises a center casing incorporating a distributing drive train. In the fore-and-aft direction, an input shaft of the distributing drive train projects from the center casing toward a prime mover, and a PTO shaft for driving a mower unit projects from the center casing opposite to the prime mover. A pair of left and right deceleration drive train casings for incorporating respective deceleration gear trains and supporting the respective axles are disposed on respective left and right sides of the center casing. A pair of left and right stepless transmission mechanisms, each of which is drivingly interposed between the distributing drive train and each of the deceleration gear trains in the deceleration gear train casings, are mounted on left and right side portions of the center casing opposite to the prime mover in the fore-and-aft direction.

Crawler vehicle steering system

FIELD: transport engineering. SUBSTANCE: proposed steering system of crawler vehicle has control clutch release sensor for generating control clutch release signals, gearshift lever sensor for generating gearshift lever position signals and rotation sensor connected with steering member and generating steering member position signal. Invention is aimed at building steering system which brings steering gear out of action or out of opposite rotation with gearshift lever shifted from parking position into neutral position or from parking position into neutral position for shifting in gear irrespective of position of steering wheel. Bringing steering gear out of operation or prevention of opposite rotation makes it possible to restore steerability or opposite rotation by without setting steering wheel into central position. EFFECT: improved reliability of steering system. 10 cl, 3 dwg

Self-driving vehicle

Es wird ein Fahrzeug mit hydrostatischen Getrieben für Fortbewegungsmittel (48, 50) jeder Seite mit einem Steuermechanismus (2) vorgeschlagen, der einerseits einen Anschlag für die jeweils gewollte maximale Geschwindigkeit bietet und es erlaubt, daß diese Anschläge zur Einstellung einer Geschwindigkeitsdifferenz unterschiedliche Stellungen einander gegenüber einnehmen können. A vehicle with hydrostatic transmissions for means of transportation (48, 50) on each side with a control mechanism (2) is proposed, which on the one hand offers a stop for the desired maximum speed and allows these stops to set a speed difference in different positions relative to one another can take.

Device providing variable steering responsiveness

The present invention relates to a steering linkage device which transmits a user's input motion to at least one wheel of a vehicle, wherein the steering linkage device produces an output motion of a particular magnitude. The ratio of the magnitude of the input motion to the magnitude of the output motion varies, depending upon the magnitude of the input motion. The steering linkage device enhances the steering control of vehicle users by varying the steering responsiveness for different steering motions made by the users.

Steering control for tracked vehicles

The at least one hydraulic steering motor (42) reacts on the drive mechanism (24,28), which allows the adjustment of a relative speed, between the left and the right endless track, depending on the steering motor rpm. The steering control system contains a vehicle speed sensor (76), a steering motor rpm sensor (80), a steering input system (64), adjustable by a steering person and a control unit (62) for controlling the steering motor rpm depending on the adjustment of the steering input system. The steering input is a non centered system, and the control unit evaluates the sensor signals, such that it prevents a rise in steering motor rpm, so long as the quotient of steering motor rpm and vehicle speed is greater than a threshold value.

Steer-drive for vehicles

一种转向驱动装置将相应的左、右轨道齿轮驱动装置(20，22)放入在发动机/变速箱(10，12)和车辆每侧的相应推进轴之间的车辆驱动链中。轨道驱动单元仅包括通过至少一个轨道多联齿轮(60，61)互连的输入齿轮(54)和输出齿轮(58)，所述多联齿轮支撑在转动的壳体上，且仅与输入和输出齿轮啮合。所述轨道单元这样设计，即(a)当阻止壳体(64)的转动时，驱动扭矩以实际上接近1∶1的选定速度比传递，(b)当转向扭矩导致壳体转动时，转向扭矩同时增加，与轨道单元相等且方向相反，致使车辆一侧的驱动装置以相同的速度减速。所述转向驱动装置适用于履带车辆、船和飞机的驱动链中。

A kind of novel wheel-type vehicle multistage chain conveyer and steering mechanism

本发明公开一种新型轮式车辆用多级链传动和转向机构，分动器两端分别与变速器、输出半轴联接，驱动轮一级主动链轮联接在输出半轴上，驱动轮一级主动链轮通过驱动轮链条与前驱动轮一级从动链轮、后驱动轮一级从动链轮联接；张紧轮总成固接在内支撑板上安装在一级传动链轮之间，前驱动轮一级从动链轮通过输入传动轴与驱动轮转向机构总成联接，驱动轮转向机构总成通过输出传动轴与二级链传动总成联接，输出传动轴安装在转向节和变速器内支撑板上，二级链传动总成与驱动轮联接，后驱动轮一级从动链轮通过输入传动轴与驱动转向机构总成联接，驱动转向机构总成通过输出传动轴与二级链传动总成联接。本发明可以四轮驱动及转向，提高车辆适应地形性能。

Omnidirectional platform and omnidirectional transporter

An omnidirectional platform comprises a first module (1) with at least one first drive wheel (10) connected to a first horizontal axle (11) and actuated by a first actuator (12) and a second drive wheel (20) connected to a second axle (21) and actuated by a second actuator (22); a second module (2) connected to the first module (1) by a third, vertical axle (31) actuated by a third actuator (32); a control device (3) connected to the first, second and third actuators (12, 22, 32), wherein the second module (2) is supported on the first module (1); and the first module (1) further includes a freewheeling rolling element (40). In a second embodiment, the platform is arranged upside down so that its wheels are accessible from a transport plane, forming a static omnidirectional transporter for the omnidirectional transfer of packages.

一种履带式转向液压阀及控制系统

本发明提供一种履带式转向液压阀及控制系统，包括阀芯，阀芯滑动连接与阀体内部，阀芯一端连接对称设置弹簧垫，弹簧垫通过缓冲机构设于密封罩内，密封罩内设有限位套，密封罩与阀体连接处设有O形密封圈，阀芯缓冲机构一侧通过螺钉连接，在阀体两侧从左向右分别设有第一回油流道、转向回油流道、第二回油流道、左转向流道、内部进油流道、右转向流道、第三回油流道，通过操纵一路液压阀阀芯的的换向行程，进而控制左转向油缸和右转向油缸的各自动作，实现履带式转向系统的多种转向方式，操纵控制简单，可以很好地实现无极转向。

混合动力高速插秧机及其转向方向控制系统

一混合动力高速插秧机及其方向控制系统（40），其中混合动力高速插秧机包括一插秧机主机（10）、至少一动力系统（30）、一行走系统（20）、以及一方向控制系统（40）。动力系统（30）被设置于插秧机主机（10），和驱动插秧机主机（10）插秧作业，其中行走系统（20）被设置于插秧机主机（10），行走系统（20）包括至少四个车轮（21）和三个电动机（22），其中电动机（22）被动力系统（30）驱动，而带动插秧机主机（10）行驶，其中方向控制系统（40）控制行走系统（20）的车轮（21）偏转方向，和以差速的方式控制车轮（21）的转动，从而改变行走系统（20）的转向。

一种方向盘同步控制的双泵双马达转向操纵机构

一种方向盘同步控制的双泵双马达转向操纵机构，其转向移动箱通过导向杆安装在转向固定架上，转向轴和中间轴安装在转向移动箱中，转向轴的上端与方向机的转向轴连接，中部安装有主动齿轮，下端安装有转向平衡扇板，中间轴的上部安装有从动齿扇，下端安装有小齿轮，从动齿扇和主动齿轮啮合，小齿轮和转向平衡扇板相啮合；左右控制拉线安装在转向平衡扇板的左右两边，外套固定在转向固定架的软轴支架上，芯轴的前端分别与转向平衡扇板的左右臂连接，后端与左右变量泵的控制摆臂连接；调速转轴左侧的摆板通过调速手柄拉杆与驾驶室内的调速控制手柄相连接，右侧的摆板通过调速连杆与转向移动箱下部的调速拉杆座相连接。

自律走行装置及び自律走行制御方法及び自律走行制御プログラム

Systems and methods for machine steering

A method for steering correction in a mobile machine having at least one ground-engaging device including one or more tracks or one or more wheels includes detecting a steering request with an electronic control unit, the steering request being generated by an input device configured to control steering of the mobile machine. The method also includes determining that the steering request is a request to propel the mobile machine in a straight path and determining, during travel of the machine, an amount of deviation of the mobile machine from the straight path. The method further includes generating an adjusted steering command based on the amount of deviation from the straight path.

Working machine

A working machine includes a controller configured to determine a first deceleration threshold corresponding to each of a first traveling pressure, a second traveling pressure, a third traveling pressure, and a fourth traveling pressure, to perform automatic deceleration to reduce rotation speeds of a left traveling motor and a right traveling motor, and to judge whether to perform the automatic deceleration based on the determined first deceleration threshold, the first traveling pressure, the second traveling pressure, the third traveling pressure, and the fourth traveling pressure.