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300results about "Non-deflectable wheel steering" patented technology
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Electrical Power Assisted Steering System
ActiveUS20140088835A1reduce gainweakening rangeSteering initiationsDigital data processing detailsElectric power steeringDriving current
An electric power assisted steering assembly comprises a steering mechanism which operatively connects a steering wheel to the roadwheels of a vehicle, a torque sensing means adapted to produce a first output signal indicative of the torque carried by a portion of the steering mechanism, a means for producing a second output signal indicative from a signal indicative of the angular velocity of the portion of the steering mechanism, an electric motor operatively connected to the steering mechanism, a signal processing unit adapted to receive the two output signals and to produce therefrom an overall torque demand signal representative of a torque to be applied to the steering mechanism by the motor, and a motor drive stage adapted to provide a drive current to the motor responsive to the torque demand signal. The overall torque demand signal includes a damping component that is dependent upon the second output signal. The means for producing the yaw damping component includes a filter having one pole and one zero, and in use the second signal is passed through the filter to produce the damping component, the frequency of the pole and zero being selected such that the filter provides a band between the pole and zero within which the phase of the filtered second signal and the velocity signal are further out of phase or in phase than within the band.
Owner:TRW LIMITED
Vehicle control method, multi-purpose vehicle, and garden work vehicle
PendingUS20260116211A1Navigation by speed/acceleration measurementsHand leversControl engineeringControl theory
Provided are a vehicle control method, a multi-purpose vehicle, and a garden work vehicle. The multi-purpose vehicle includes a drive mechanism, a control mechanism, and an auxiliary control mechanism. The auxiliary control mechanism includes: a control state sensing component, configured to determine a control state of a user with respect to the control mechanism; a traveling state sensing component, configured to determine the traveling state of the multi-purpose vehicle, the traveling state including a straight-line traveling state and a non-straight-line traveling state; and a calibration controller component, configured to determine that the multi-purpose vehicle is traveling abnormally in response to a mismatch between the traveling state and the control state. The calibration controller component is further configured to adjust, in response to determining that the multi-purpose vehicle is traveling abnormally, the operating state of the drive mechanism to match the traveling state with the control state.
Owner:JIANGSU DONGCHENG M&E TOOLS CO LTD
Work machine
A work machine includes: a pair of drive wheels that is either front wheels or rear wheels; a pair of non-driving wheels that is the other of the front wheels and the rear wheels; a work device disposed between the front wheels and the rear wheels; a machine body; and a control device including an automatic turn-execution unit configured to execute an automatic turn in a U shape. The automatic-turn execution unit is configured to execute: a gentle turn operation in which the work machine makes a gentle turn; and a counter-rotation turn operation in which the work machine makes a counter-rotation turn after the gentle turn operation.
Owner:HONDA MOTOR CO LTD
Steer-by-wire fault degradation processing method and system, vehicle, equipment and medium
PendingCN121268959AElectrical steeringNon-deflectable wheel steeringSteering angleMechanical engineering
The invention discloses a steering-by-wire fault degradation processing method and system, a vehicle, equipment and a medium, and relates to the technical field of vehicle control. The steering-by-wire fault degradation processing method comprises the following steps that the fault state of a steering-by-wire system of a vehicle is obtained; according to the fault state of the steer-by-wire system, whether a braking system of the vehicle needs to provide steering capacity is judged; if the braking system needs to provide the steering capacity, the needed front wheel steering angle is determined according to the steering angle signal and the vehicle speed; four-wheel braking force needed by the vehicle is determined according to the needed front wheel rotation angle; and controlling the braking system to execute the braking force of each wheel according to the required four-wheel braking force so as to realize front wheel steering. Under the condition that the steer-by-wire system breaks down and loses part of or all steering capacity, extra steering capacity can be provided through four-wheel braking force distribution of the braking system, cross-system redundancy safety is achieved, and the safety of the steer-by-wire vehicle is improved.
Owner:CHINA FAW CO LTD
Tire rotating speed control method, system and equipment of electric boom and medium
The invention discloses a tire rotating speed control method, system and equipment of an electric boom and a medium, and belongs to the technical field of engineering machinery. The electric arm vehicle comprises a steering structure, a plurality of tires and a plurality of walking motors, the steering structure comprises a left steering seat, a right steering seat, a steering axle and a steering pull rod, the tires correspond to the walking motors one to one, and the tire rotating speed control method of the electric arm vehicle comprises the steps that the current steering angle of the electric arm vehicle is determined; generating motor rotating speed control information according to the relation between the current steering angle and the motor rotating speed; and controlling the walking motor to drive the tire to rotate according to the motor rotating speed control information. The tire rotating speed of the electric boom can be reasonably controlled, and the safety risk is reduced.
Owner:SUNWARD INTELLIGENT EQUIP CO LTD
Steering control method, device and system and vehicle
The invention discloses a steering control method, device and system and a vehicle, relates to the technical field of vehicle control, and aims to realize small-radius steering of the vehicle. The method comprises the steps that after it is determined that the vehicle enters a low-speed steering scene according to the vehicle speed and the steering wheel rotating angle of the vehicle, at least one shaft of the vehicle is controlled to output first differential torque, an outer wheel of the at least one shaft outputs positive torque, and an inner wheel of the at least one shaft outputs negative torque according to the steering wheel rotating angle and steering wheel hand force of the vehicle; the difference between the negative torque and the positive torque is equal to the first differential torque. When the vehicle enters the low-speed steering scene, at least one shaft of the vehicle is automatically controlled to output the differential torque, small-radius steering and even in-situ turning of the vehicle can be achieved, and the turning angle of the vehicle is effectively reduced. In addition, the steering wheel angle and the steering wheel hand power are parameters related to the steering intention of the driver, the vehicle is controlled to achieve differential steering based on the parameters, the actual steering of the vehicle can meet the subjective requirement of the driver, and the steering experience of the driver is improved.
Owner:YINWANG INTELLIGENT TECHNOLOGIES CO LTD
Car body structure and driving unit including the same
A car body structure includes a bottom plate, a side plate assembly, and a support rod assembly. The side plate assembly includes a first side plate and a second side plate opposite to the first side plate. The first side plate and the second plate are connected to the bottom plate and located on a same side of the bottom plate. An edge of the first side plate facing away from the bottom plate defines at least two first slots, and an edge of the second side plate facing away from the bottom plate defines at least two second slots. The support rod assembly includes at least two support rods, each support rod is snap-engaged with one first slot and one second slot. A surface of the support rod assembly facing away from the bottom plate is a bearing surface. A driving unit is also disclosed.
Owner:FUTAIJING PRECISION ELECTRONICS (YANTAI) CO LTD +1
Improved remote control type multi-terrain transport vehicle
The utility model belongs to the technical field of vehicle equipment, and particularly relates to an improved remote control type multi-terrain transport vehicle which comprises a carriage body, a wheel carrier box and a transmission shaft, two walking wheels are installed on the outer side of the wheel carrier box, a chain wheel transmission mechanism is arranged in the wheel carrier box, and a connecting cylinder is arranged in the middle of the outer wall of the side, facing the carriage body, of the wheel carrier box. Limiting devices are arranged on the front portion and the rear portion of the wheel carrier box, the center of the connecting cylinder is parallel to a walking wheel rotating shaft, the connecting cylinder is rotatably installed on the carriage body, the transmission shaft is rotatably installed in the connecting cylinder, the chain wheel transmission mechanism comprises a driving gear and two driven gears, the driving wheel is connected with the output end of the transmission shaft, and the two driven gears are connected with the chain wheel. The driven gears are arranged in front of and behind the driving gear respectively, and the two walking wheels are connected with rotating shafts of the two driven gears respectively. The amplitude of the transmission mechanism is reduced, the strength of the transmission mechanism is improved, and the multi-terrain transport vehicle has the advantages of being simple in structure and reliable in work.
Owner:黄锦平
Intelligent crawler-type combine harvester walking device
The invention provides an intelligent crawler-type combine harvester walking device, and belongs to the field of harvesters, the intelligent crawler-type combine harvester walking device comprises a frame, a harvester and an engine are both fixedly installed on the upper portion of the frame, the frame is provided with a transmission gear box, the engine is in transmission connection with the transmission gear box, and the transmission gear box is connected with the harvester. The walking assembly comprises a track shoe, a driving roller, a follow-up roller, a transverse telescopic frame, a longitudinal telescopic frame, a wheel shaft, wheels and a transverse pushing gear. In the whole switching and operation process, the walking device is stably supported through the wheels, it is always ensured that the track shoe does not make direct contact with the hardened road surface, structural damage such as scratches and indentations caused by a metal track chain to the road surface is reduced fundamentally, the abrasion rate of the metal track and the rubber track can be remarkably reduced, the service life of the tracks is effectively prolonged, and the service life of the track is prolonged. And meanwhile, the accessory replacement and maintenance cost of equipment operation and maintenance is reduced.
Owner:XINGGUANG AGRI MACHINERY CO LTD
AGV (Automatic Guided Vehicle) for carrying yardage rolls
PendingCN122035156AImprove stabilityreduce wasteLoad securingEndless track vehiclesCar drivingGear wheel
The invention relates to the technical field of yardage roll carrying devices, and discloses an AGV (automatic guided vehicle) for carrying yardage rolls, which comprises a carriage, hydraulic rods are mounted at the upper ends of the two sides of the carriage, clamping sleeves are arranged at the lower ends of the hydraulic rods, crawler wheels are mounted in the clamping sleeves, and limiting columns are fixedly connected to the middle of the upper end of the carriage. The limiting column is sleeved with a movable sleeve, a motor is installed on one side of the movable sleeve, an auxiliary platform is fixedly connected to the upper portion of the movable sleeve, and a hinge is fixedly connected to one side of the upper portion of the auxiliary platform. According to the AGV for carrying the yardage rolls, by designing a specific running track, convenience is improved when the carriage runs, meanwhile, motors move through gear meshing, an auxiliary platform can be driven to rotate around the upper portion of the carriage, and when the feeding direction of the to-be-carried yardage rolls is opposite to the discharging direction of the to-be-carried yardage rolls, the auxiliary platform can be driven to rotate by starting the motors; therefore, the placing direction of the cloth roll to be carried can be adjusted.
Owner:南通鑫彩智能科技有限责任公司
Zero turning radius mower park brake system
A zero turning radius mower park brake system 100 includes a pair of steering levers (101, fig 1) attached to steering arm brackets 102 that are pivotable forward and reverse on a first axis 112 for r
Owner:DEERE & CO
Vehicle power transmission unit
[Problem] To provide a vehicle power transmission unit capable of moving a vehicle with a small power when a power supply of a system is off and capable of braking the vehicle by a brake system regardless of whether a clutch is engaged or disengaged. [Solution] A power transmission unit includes an input shaft, a gear mechanism, and an axle. Power from a power source is transmitted from a rotational shaft of the power source to the axle via the input shaft and a gear mechanism. The rotational shaft and the input shaft are arranged such that axes thereof match each other. The power transmission unit further includes: a clutch provided between the rotational shaft and the input shaft and manually operated to switch engagement and disengagement between the rotational shaft and the input shaft; a brake mechanism including a brake rotor provided not to rotate relative to the input shaft.
Owner:KANZAKI KOKYUKOKI MFG
Differential wheel limiting detection device and method
According to the differential wheel limiting detection device and method, the rotating direction and the rotating speed of a wheel set can be limited in advance before the differential wheel moves in two directions and collides with a hard limit, so that the control performance of a vehicle is improved, the situation that an oil cylinder and the like fall off due to collision with the hard limit when the speed is high is avoided, and the problem that a traditional differential wheel set is poor in safety is solved. The system has the advantages of quick response, high safety, simple structure and the like, and is suitable for differential wheel control systems of equipment such as AGVs (Automatic Guided Vehicles) and mobile robots.
Owner:BEIJING INST OF SPECIALIZED MACHINERY
Redundant steering control device for autonomous driving
ActiveCN109789892BBraking element arrangementsBrake system interactionsHydraulic motorControl engineering
A steering system controllable by a redundant braking system, the redundant braking system including a primary braking control module, a secondary braking control module, and a plurality of braking units controlled by the primary braking control module or the secondary braking control module. There is at least one hydraulic motor connected to a component of the steering system, and fluid pressure in the hydraulic motor is controlled by the secondary braking control module. Wheels of the steering system are configured to turn right when the secondary braking control module operates the hydraulic motor during a first operating mode, and the wheels of the steering system are configured to turn left when the secondary braking control module operates the hydraulic motor during a second operating mode.
Owner:CONTINENTAL AUTOMOTIVE SYSTEMS INC
Hybrid electric powertrain for tracked vehicles
The present invention relates to a hybrid electric powertrain for tracked vehicles that includes an electric motor that is operatively connected to a first ring gear in a first planetary gear set that drives the track; a combustible engine that is operatively connected to an axle that drives a first sun gear in the first planetary assembly; a clutch that engages and disengages a first output drive shaft powered by the engine to a second output shaft that rotates the axle; and a brake assembly that prevents the axle from causing the sun gear to rotate when the first ring gear is being rotated by the electric motor, thereby allowing the vehicle to operate in a fully electric mode. In one embodiment the brake assembly may include an axle clutch that disengages the first sun gear from the axle.
Owner:CLEMSON UNIVERSITY
Driving module of transport vehicle and transport vehicle
ActiveCN224103859UElectric propulsion mountingNon-deflectable wheel steeringVehicle frameSlewing bearing
The utility model discloses a driving module of a transport vehicle, the driving module comprises a pivotal bearing, a power assembly, a support and an angle sensor, the support is connected with the pivotal bearing and the power assembly, a mounting surface for supporting the pivotal bearing is formed on the support, and the angle sensor and the pivotal bearing are coaxially arranged; the pivotal bearing comprises a bearing inner ring and a bearing outer ring which can rotate relatively; one of the bearing inner ring and the bearing outer ring is fixedly connected with the support, the other one of the bearing inner ring and the bearing outer ring is used for being connected with a frame of the transport vehicle, and when the bearing inner ring and the bearing outer ring rotate relatively, the angle sensor measures the relative rotation angle of the bearing inner ring and the bearing outer ring. The utility model further discloses the transport vehicle comprising the driving module. The angle sensor is arranged at the geometric center of the pivotal bearing, the structures of the angle sensor and the driving module are simplified, all parts of the driving module are arranged more compactly, and the integration degree is higher.
Owner:HANGZHOU HIKROBOT TECH CO LTD
All-terrain vehicle
ActiveCN117360663Breduce stressReduced risk of deformationCyclesSteering deviceFriction torqueGear drive
The application relates to the field of vehicle technology and discloses an all-terrain vehicle, which comprises wheels, a power source, a front axle assembly and an input shaft. The wheels comprise front wheels and rear wheels. The power source drives the wheels to rotate. The front axle assembly is connected with the front wheels. The input shaft is connected with the front axle assembly and the power source. The front axle assembly comprises a driven device, an output gear, a first connecting wheel, a second connecting wheel and a friction assembly. The driven device comprises a fixedly connected driven gear and an inner housing. The output gear drives the front wheels. The first connecting wheel is engaged with the output gear. The second connecting wheel is engaged with the inner housing. The locking mechanism can drive the friction assembly to switch between a compression state and a free state. When the friction assembly is in the free state, the friction resistance between the output gear and the driven device is smaller than that when the friction assembly is in the compression state. The friction torque of the friction assembly is increased, the assembly efficiency of the friction assembly is improved, and the size of the transmission assembly is reduced.
Owner:ZHEJIANG CFMOTO POWER CO LTD
Indoor intelligent fire extinguishing robot and chassis control method
The application relates to an indoor intelligent fire extinguishing robot and a chassis control method, which comprise a running system, a power supply system, a fire extinguishing system, a visual control system and a central controller; the running system is used for advancing, retreating and differential steering of the fire extinguishing robot; the power supply system is used for supplying power to the running system, the fire extinguishing system and the visual control system; the fire extinguishing system is used for extinguishing a fire source area; the visual control system is used for judging whether an obstacle can be normally passed when the robot runs, and if the obstacle cannot be normally passed, the local path needs to be re-planned to run to the fire disaster area, and the visual control system is used for identifying a fire source so that a fire extinguisher can be accurately sprayed to the fire source part; and the central controller is used for controlling the running system, the power supply system, the fire extinguishing system and the visual control system. The application has the advantages that rear wheel active steering and front wheel steering as an auxiliary are adopted, the differential steering has a small steering radius, and good steering stability is achieved.
Owner:JILIN UNIVERSITY
vehicle
To provide a vehicle having a pair of right and left and drive wheels, which are mutually independently driven to rotate, and a turn wheel capable of being turned, and being characterized in that a criterion for control of the turn wheel by a turning apparatus is properly determined.SOLUTION: When a vehicle 10 is caused to make a steady-state turn by turning or driving a pair of drive wheels 22 with a difference in a turning speed kept between the drive wheels, a turn angle θ of a turn wheel 24 turned with a self-aligning torque is acquired using a turn angle sensor. Based on the turn angle, turn angle calibration for determining a criterion for the turn angle in turn control is carried out. For example, when a super pivot turn is adopted as the steady-state turn, the turn angle calibration can be carried out even in a narrow place. For example, the vehicle is caused to make the steady-state turn rightward or leftward at a turn radius r, then, a midpoint of the turn angles of the rightward and leftward turns is regarded as a criterion, thereby an accurate criterion can be designated.SELECTED DRAWING: Figure 3
Owner:TOYOTA JIDOSHA KK
Compact universal driving unit for anti-explosion AGV (Automatic Guided Vehicle)
The invention discloses a compact type universal driving unit of an anti-explosion AGV. The compact type universal driving unit comprises a main body frame, a left driving assembly, a right driving assembly, a rotating shaft, trundle supports and auxiliary trundles. The rotating shaft is perpendicular to the center of the body frame, the left driving assembly and the right driving assembly are symmetrically installed on the left side and the right side of the body frame, and each driving assembly is mainly composed of a driving wheel, a wheel bearing, a transmission unit, a speed reducer and an explosion-proof motor. The upper end of the rotating shaft is connected with a trundle support through a rotating shaft bearing, and an auxiliary trundle is arranged at the tail end of the trundle support. Linear motion, curvilinear motion, in-situ radius rotation motion and rapid steering of the anti-explosion AGV in any direction are achieved, meanwhile, the problem that multiple wheels make contact with the ground is solved through the swing suspension system, the anti-explosion AGV has the advantages of being compact in structure, easy to wire, high in adaptability, safe and reliable, and the problem of the anti-explosion AGV in the aspect of a driving unit is solved.
Owner:SHANDONG PENGXIANG AUTOMOBILE
Auxiliary steering system for automobile and automobile
According to the auxiliary steering system for the automobile and the automobile, under the emergency conditions that a steer-by-wire system is in complete failure and the like, braking force of left and right wheels can be electrically and actively distributed, steering torque is generated, emergency steering is achieved, and it is guaranteed that the automobile avoids obstacles or maintains a running path in the speed reduction process; the safety when the steer-by-wire system fails under the extreme working condition is improved, steering control is independently achieved through the braking system, the emergency backup effect can be achieved without mechanical backup of the steer-by-wire system, and the complexity of the component structure can be reduced; an inherent executing mechanism of the braking system is utilized, the response speed can reach the millisecond level and is better than mechanical transmission delay of traditional mechanical backup, and the emergency response time can be shortened; by dynamically adjusting the left and right braking force difference, accurate direction correction can be achieved under the scenes such as linear driving, curves and wet and slippery road surfaces, the limitation of single deceleration parking is reduced, and the method adapts to various complex road conditions. The invention is widely applied to the technical field of automobiles.
Owner:CHINA FAW CO LTD
Autonomous travel system
PCT designated stageWO2026070071A1Soil-shifting machines/dredgersVehicle position/course/altitude controlAutomatic controlClassical mechanics
An autonomous travel system (1) comprises a traveling body (11) and a controller (70). The controller (70) autonomously controls the travel of the traveling body (11) so that the traveling body (11) travels toward a target position (T1). The traveling body (11) is provided with a left traveling body (11L) and a right traveling body (11R). The traveling body (11) is configured to be capable of performing a spin turn in which the left traveling body (11L) and the right traveling body (11R) are driven in mutually opposite directions. The controller (70) causes the traveling body (11) to perform the spin turn when a condition relating to the position or travel distance of the traveling body (11) is satisfied.
Owner:KOBELCO CONSTR MASCH CO LTD
Steering system of milling machine
The invention discloses a milling machine steering system which comprises steering traction units arranged on the left front side, the right front side, the left rear side and the right rear side of a frame respectively, the steering traction units are correspondingly connected with walking track units respectively, a front connecting piece is arranged between the two steering traction units on the front side, and a rear connecting piece is arranged between the two steering traction units on the rear side. The at least one steering traction unit on the rear side is connected with a rear connecting piece, the at least one walking track unit on the rear side is connected with a limiting device, and a driving device is arranged between the steering traction units and the walking track units. The rear connecting pieces are in linkage with the corresponding steering traction units to be switched between the first position and the second position, when the steering traction units are located at the first position, the right front walking crawler belt and the left front walking crawler belt rotate, and when the steering traction units are located at the second position, the four walking crawler belts corresponding to the steering traction units all rotate. The system reduces the abrasion of the track shoe, prolongs the service life, reduces the turning radius, improves the flexibility of the whole vehicle in a narrow channel, and improves the maneuverability of equipment.
Owner:XCMG CONSTRUCTION MACHINERY CO LTD ROAD MACHINERY BRANCH
Multi-mode drive system with selectively engageable steering module for mobile robots
Disclosed is a drive system for a mobile robot. The drive system comprises: a structural frame; a driving module comprising: at least two driving wheels; and at least two driving motors, wherein each individual one of the at least two driving motors comprises first sensor(s) configured to sense an individual driving wheel rotation; and a steering module comprising one of: a motor, a clutch actuator, wherein the one of: the motor, the clutch actuator comprises second sensor(s) configured to sense an individual driving wheel rotation. When the drive system is in use, the steering module is disengaged from the driving module to drive the mobile robot in a steer driving mode, or the steering module is engaged with the driving module to drive the mobile robot in a differential driving mode.
Owner:AVRIDH TECHNOLOGIES INC
Self-propelled vehicle with wheel rotation reversal
The invention relates to a vehicle (1) comprising a front axle (2), a rear axle (3), a motor (4) common to both axles (2, 3), each axle (2, 3) comprising a rotary input shaft (5), two aligned driven output shaft sections (61, 62) each engaged with a wheel (7) of the vehicle (1), a differential (8) comprising at least one planet gear (9) that meshes with two mounted sun gears (101, 102), one (101) of which rotates as one with the first output shaft section (61) and the other of which is free to rotate on the second output shaft section (62). Each output shaft section (61, 62) carries, in a freely rotatable manner, a rotary part (111, 112) that rotates as one with the input shaft (5), the parts (111, 112) being counter-rotating, the rotary part (111) forming a driving element for rotating the sun gear (101, 102) / planet gear (9) assembly of the differential (8). The first section (61) and the second section (62) of the output shaft each carry a clutch member (221, 13) that rotates as one with, and is axially movable on, the associated output shaft section in order to allow, when the clutch members (221, 13) are in the first position, the wheels (7) to be rotated in the same direction and, when the clutch members (221, 13) are in the second position, the wheels (7) to be rotated in an opposite direction.
Owner:MANITOU BF SA
Walking device of photovoltaic array installation equipment and photovoltaic array installation equipment
The utility model discloses a walking device of photovoltaic array installation equipment and the photovoltaic array installation equipment. The walking device of the photovoltaic array installation equipment comprises a crawler walking mechanism and a steering driving mechanism, and the crawler walking mechanism is rotationally installed on a frame of the photovoltaic array installation equipment; the steering driving mechanism is arranged on the frame, connected with the crawler walking mechanism and used for driving the crawler walking mechanism to rotate relative to the frame in the horizontal plane to achieve steering of the photovoltaic array installation equipment. The technical problem that the steering speed is low is solved, a crawler walking mechanism is rotationally installed on a vehicle frame, the rotating axis of the crawler walking mechanism is the axis of the installation position, the crawler walking mechanism is driven by a steering driving mechanism to rotate around the axis of the installation position relative to the vehicle frame, and the turning radius of the crawler walking mechanism is reduced; the steering speed is improved.
Owner:SHANGHAI BOLIGHTROBOTICS CO LTD
Axle assembly and vehicle
The utility model discloses an axle assembly and a vehicle, and relates to the technical field of vehicles. The input shaft is fixed in the axle housing in a rotatable manner; the output shaft is rotatably fixed on the axle housing and is selectively in transmission connection with the input shaft; the reversing mechanism is in transmission connection with the input shaft and the output shaft; when the input shaft and the output shaft are in transmission connection, the input shaft drives the output shaft to rotate in the forward direction. And when the transmission of the input shaft and the output shaft is cut off, the input shaft drives the output shaft to rotate reversely through the reversing mechanism. According to the axle assembly, the driving wheels on the left side and the right side can rotate in the same direction or in the opposite directions, the turning radius of a vehicle can be reduced, and the axle assembly can transmit power through different paths and is convenient to adjust.
Owner:GREAT WALL MOTOR CO LTD
Crawler belt straight movement keeping hydraulic system, control method and agricultural machine
The invention relates to the technical field of agricultural machinery, in particular to a crawler belt straight movement keeping hydraulic system, a control method and agricultural machinery. In the hydraulic system, a left track closed pump is connected with a left track walking motor through a left flow regulating valve group, and a right track closed pump is connected with a right track walking motor through a right flow regulating valve group; the left flow regulating valve group and the right flow regulating valve group respectively comprise a proportional valve and a constant pressure difference pressure reducing valve, the inlet and outlet pressure difference of the proportional valve is kept at a preset value through the constant pressure difference pressure reducing valve, and the flow of hydraulic oil entering the left crawler walking motor and the right crawler walking motor is regulated by changing the current of the proportional valve. The proportional valve and the constant pressure difference pressure reducing valve are adopted for flow control and pressure compensation, and the flow control precision is high, so that the rotating speeds of the walking motors on the left side and the right side can be accurately adjusted, and it is ensured that the rotating speeds of the two walking motors tend to be consistent; closed-loop control is adopted, the actual rotating speed serves as the target, and the influence of the volume efficiency of the closed pump and the travel motor is avoided.
Owner:XINJIANG XINYANMUSHEN TECH CO LTD
Driving module and guide transport vehicle
Owner:HANGZHOU HIKROBOT TECH CO LTD
Double-flow transmission mechanism with randomly adjustable turning radius
ActiveCN224075621UImprove mobilityincrease flexibilityNon-deflectable wheel steeringGear wheelElectric machinery
The utility model discloses a double-flow transmission mechanism with randomly adjustable turning radius, which comprises two groups of differential transmission components which are symmetrically arranged, and each differential transmission component consists of a shell structure and a gear mechanism. In addition, the device further comprises a driving motor A, a driving motor B and a split-flow transmission mechanism, the driving motor A is in power connection with the shell mechanism, the driving motor B is connected with the split-flow transmission mechanism, and the split-flow transmission mechanism is connected with the two gear mechanisms. The shunting transmission mechanism is composed of a spline shaft, a spline sleeve, a locking head, a locking groove, a supporting spring and an electric telescopic cylinder. The spline shaft is connected with the driving motor B. The locking head is in sliding fit with the spline sleeve, the supporting spring stabilizes the position of the locking head, and the electric telescopic cylinder is used for adjusting the position of the spline sleeve. By means of the mechanism, the crawler can accurately adjust the turning radius according to actual requirements, the problems that in the prior art, the turning radius cannot be adjusted, and steering is inaccurate are solved, and maneuverability, flexibility and stability under complex working conditions are remarkably improved.
Owner:HUNAN NONFERROUS METALS VOCATIONAL & TECHN COLLEGE