29results about How to "Improve obstacle performance" patented technology

The application discloses a robot chassis and a robot, and the robot chassis comprises a vehicle frame, swing arms arranged on opposite sides of the vehicle frame, different-speed rotation between the swing arms, rudders connected with the swing arms, synchronous rotation between the rudders, hub motors connected with the swing arms through the rudders, rotation of the hub motors according to a preset speed ratio, and a connecting rod mechanism arranged on the vehicle frame, connected with the swing arms, and matched with the swing arms to enable the different-speed rotation between the swing arms. The hub motors are connected with the swing arms through the rudders, the rudders of front and rear wheels are synchronously rotated, the front and rear wheels are deflected by a certain angle, the hub motors can rotate according to a certain speed ratio, and the whole machine is driven to turn during movement and turn in place. Meanwhile, the connecting rod mechanism is matched with the different-speed rotation between left and right swing arms, the pitch angle of the chassis is at the middle value of the inclination angles of the left and right swing arms, and the obstacle crossing ability and the anti-rollover ability of the chassis are effectively improved.

The wheel-foot conversion multi-legged robot comprises a body, the side surface of the body is provided with a plurality of driving parts distributed in the circumferential direction, a multi-joint leg, the proximal end of the multi-joint leg is hinged to the driving part, the multi-joint leg comprises a plurality of joint arms arranged in a straight line and hinged in sequence, wherein the two ends of the joint arm farthest from the proximal end are respectively provided with a walking wheel and a gripping foot, both can support and drive the wheel-foot conversion multi-legged robot, and the robot realizes wheel running and foot running mode conversion by switching the use of the walking wheel and the gripping foot of the multi-joint leg. The multi-legged robot designed by the utility model can be switched between the use of the walking wheel and the gripping foot, and then the wheel running and foot running mode conversion is realized, and the innovative design significantly enhances the obstacle crossing ability of the robot.

The application is suitable for the technical field of cleaning equipment, and provides a tire, a walking wheel, a cleaning equipment and a cleaning system. The tire is used for at least the cleaning equipment. A plurality of protruding parts are arranged on the outer peripheral side wall of the tire. The plurality of protruding parts are arranged at intervals along the circumferential direction of the tire. At least one side of the tire in the axial direction is concavely provided with a blind groove structure. The number of the blind groove structures is the same as that of the protruding parts and is arranged one by one. Any one of the blind groove structures comprises at least two hollowed-out grooves arranged along the circumferential direction of the tire. The tire provided by the application has the advantage of good walking stability.

The utility model discloses an auxiliary device for communication engineering construction, which relates to the field of communication engineering and comprises a supporting unit, the supporting unit comprises two supporting frames and a supporting column, the two supporting frames are coaxially arranged, and the supporting column is connected between the two supporting frames. The supporting columns are distributed in a circumferential array shape and fixedly installed between the two supporting frames through welding or bolts. The device further comprises a driving unit which is arranged on the outer side of the supporting frame, the driving unit comprises a plurality of mounting blocks distributed in the circumferential direction of the supporting frame, a mounting groove is formed in the top of each mounting block, and a supporting shaft is fixedly mounted in each mounting groove through a bearing. According to the auxiliary device for communication engineering construction, dynamic pressing of the rolling wheels on a transmission line is achieved through cooperation of the protection columns and the arc-shaped limiting grooves, efficient power transmission is ensured through combination of belt driving and bevel gear transmission, and the obstacle crossing capacity of the device is enhanced through cooperative adjustment of the tension springs and the tensioning wheels.

This utility model belongs to the field of coal mine inspection technology, specifically an inspection robot lifting platform. It includes a chassis with a liftable lifting platform mounted on top. An electric rotating gimbal is mounted on the upper surface of the lifting platform, which drives the gimbal to move up and down. A robotic arm is mounted on the upper surface of the electric rotating gimbal. This inspection robot lifting platform, with its tracks on the chassis, increases the stability and obstacle-crossing performance of the inspection robot, thus adapting to various complex underground road environments, especially better handling uneven and potholed road sections. The liftable platform on top of the chassis, using a hydraulic pump station to drive hydraulic cylinders, allows for flexible adjustment of the inspection robot's height, adapting to different underground environments, enhancing passability, and providing different viewing angles.

The invention provides a cleaning module and cleaning equipment. The cleaning module comprises a mounting body, a cleaning mechanism and a driving mechanism. The cleaning mechanism is movably mounted on the mounting body. The driving mechanism comprises a driving piece, a rotating piece and an idle stroke assembly. The driving piece is installed on the installation body and is in transmission connection with the rotating piece. The idle stroke assembly is rotationally connected with the rotating piece and is in transmission connection with the cleaning mechanism. The rotating piece is provided with a first transmission part. The idle stroke assembly is provided with a second transmission part. The second transmission part and the first transmission part abut against and are matched in the circumferential direction of the rotating piece. According to the cleaning equipment, in the process of cleaning an uneven to-be-cleaned surface or crossing obstacles, the cleaning mechanism is subjected to upward external force, and due to the fact that the first transmission part and the second transmission part are in one-way abutting fit, the first transmission part cannot hinder the second transmission part from rotating towards the side away from the first transmission part; the cleaning mechanism can freely float and lift to adapt to the height change of the to-be-cleaned surface, and the obstacle crossing performance of the cleaning equipment is improved.

This utility model belongs to the field of intelligent cleaning equipment technology, and in particular to an underwater robot swimming pool cleaning device. The detachable upper and lower cover structure facilitates maintenance of the filter and impeller, and is linked with the sensor bracket and through-hole installation method. During assembly and disassembly, the sensor bracket automatically separates, simplifying assembly and ensuring connection stability. The guide wheel system, through the precise fit between the wheel groove and the caster shaft, significantly improves the device's stability and obstacle-crossing ability on the pool bottom. The dual-motor drive, combined with the concentrically designed drainage barrier, creates a highly efficient vortex, ensuring cleaning capability even in the event of a single motor failure, while greatly improving the efficiency of removing fine impurities. In terms of user-friendly design, details such as the aligned maintenance solution between the operating port and the fixed base, the swingable and detachable soft rubber scraper, and the waterproof switch work together. The overall structure, through the organic cooperation between its components, achieves a comprehensive improvement in cleaning efficiency, operational reliability, and maintenance convenience.

This utility model provides a vehicle suspension structure, belonging to the field of garden equipment technology. The vehicle suspension structure includes a cantilever and an elastic element. This utility model rotatably mounts one end of the cantilever on each side of the chassis, with a wheel mounted on the other end of the cantilever. An elastic element is provided between the wheel-mounting end of the cantilever and the chassis. Furthermore, the drive motor is mounted inside the chassis at the cantilever connection point, achieving motor mounting on the chassis, reducing wheel weight. The cantilever and elastic element together form a wheel suspension structure, which is not only simple in structure but also reduces manufacturing costs. When traversing uneven ground, the deflection of the cantilever and the tension of the elastic element maintain the wheel's contact with the ground, preventing loss of traction and improving the vehicle's obstacle-crossing ability, thus facilitating lawnmower operations.

The embodiment of the utility model relates to the technical field of life electric appliances, and particularly discloses a sweeping robot which comprises a robot body, a front wheel and a rear wheel assembly. The front wheels are rotationally arranged at the front end of the robot body. The rear wheel assembly comprises a connecting arm, a rear wheel and an elastic assembly, the connecting arm is rotationally connected to the rear end of the robot body, the rear wheel is rotationally connected to the connecting arm, and the elastic assembly is connected with the robot body and the connecting arm. When the front end of the robot body ascends relative to the rear end of the robot body, the robot body moves relative to the connecting arm, so that the elastic assembly deforms, and the deformed elastic assembly increases the downward pressure of the rear wheels. By means of the mode, the obstacle crossing ability of the sweeping robot can be improved.

This utility model relates to the field of sweeping machine technology, and in particular to a sweeping machine obstacle-crossing gearbox, comprising a housing (10), wherein a first transmission assembly (11) and a second transmission assembly (12) are disposed within the housing (10); a side wheel (20) disposed on one side of the housing (10); an adjustable swing arm assembly (30) disposed on the other side of the housing (10) for supporting the machine body to cross obstacles; a first drive assembly (40) driving the side wheel (20) through the first transmission assembly (11); and a second drive assembly (50) disposed within the housing (10) and driving the adjustable swing arm assembly (30) through the second transmission assembly (12). Compared with the prior art, this utility model has the characteristics of reasonable structure, low cost, high reliability, and strong obstacle-crossing ability.

A kind of half wheel foot type obstacle mechanism and obstacle vehicle, including main shaft and the inner wheel arm and outer wheel arm rotationally connected on main shaft, the inner wheel arm is equipped with inner half wheel and the inner half wheel drive motor for driving inner half wheel rotation, outer wheel arm is equipped with outer half wheel and the outer half wheel drive motor for driving outer half wheel rotation;Main shaft is equipped with swing arm drive motor for driving inner wheel arm swing, main shaft is also equipped with coaxial reverse mechanism for controlling inner wheel arm and outer wheel arm always reverse motion;The inner half wheel or outer half wheel is equipped with the drive parallel connection device for operating in parallel with inner half wheel and outer half wheel;Formed with the climbing angle α between the inner wheel arm and outer wheel arm for facilitating inner half wheel and outer half wheel climbing;Compared with prior art, by designing two half wheel foot type combined obstacle mechanism, so that the obstacle mechanism load capacity and acceleration ability are completely equivalent to wheel type structure, and obstacle flexibility is close to foot type structure, and can realize the obstacle work of large load under the premise of lightweight itself.

This invention belongs to the field of automated mobile platform technology, specifically a wheeled-tracked composite omnidirectional mobile platform. Four swing arms are symmetrically mounted on the vehicle body, with the left and right swing arms structurally mirror-image. Four Mecanum wheels on the four swing arms are diagonally mounted. The rotation of the tracked drive wheels and Mecanum wheels, as well as the pitching motion of the swing arms, are achieved through a drive system mounted on them and a pitching system within the vehicle body. The mobile platform can switch between tracked, omnidirectional wheeled, and legged movement modes through the pitching motion of the four swing arms. The drive motors of the drive system are installed inside the Mecanum wheels, resulting in a relatively smaller vehicle body size and increased space utilization of the entire robotic mobile platform. This invention provides a mobile platform for robotic patrol and reconnaissance work, particularly suitable for various complex unstructured environments, and features modularity, compactness, flexible movement, and wide adaptability.

The invention provides an obstacle-crossing maintenance robot for an overhead line and a use method of the obstacle-crossing maintenance robot, and the obstacle-crossing maintenance robot can be used for obstacle-crossing maintenance of the overhead line and is convenient to operate, especially for a multi-split overhead line distributed in a polygonal mode. And the problems of slipping, insufficient stability and insufficient operation range of the robot in the walking process of the power transmission line can be solved. The robot comprises a machine base module, a walking module and a mechanical arm. The machine base module is provided with a walking module through a swing arm mechanism, the swing arm mechanism comprises a swing arm and a swing arm motor, the swing arm motor is installed on the walking module and connected with one end of the swing arm, and the other end of the swing arm is connected with the machine base module; the walking module further comprises a clamping mechanism, the clamping mechanism comprises a push rod assembly, a clamping base and a clamping driven wheel, and the push rod assembly is used for driving the clamping base to rotate and enabling the clamping driven wheel to be in an opened or closed state.

This invention relates to the hardware structure of an endoscopic underwater inspection robot for irrigation canals, belonging to the field of irrigation canal inspection technology. It includes an inspection main body with a tracked walking mechanism at its lower end. A fluid channel runs through the main body from front to back, and a generator is fixedly mounted in the middle of the inner side of the fluid channel. The generator's input shaft faces the rear opening of the fluid channel and has an impeller fixedly mounted thereon. Three robotic arms are fixedly mounted outside the front opening of the fluid channel, and three inspection sub-bodies are slidably mounted inside the front opening of the fluid channel. A main body detection component is mounted on the top front side of the main body, and sub-body detection components are mounted at the front ends of the sub-bodies. This invention solves the problems of low detection efficiency, low drive efficiency, complex control, and insufficient endurance of current irrigation canal inspection equipment.

The application provides a buried pipeline pipe joint misalignment repair method, and belongs to the technical field of pipeline repair, and comprises the following steps: step one, grouting and reinforcing the external soil body deviated to one side of the pipe joint; step two, pushing and repairing the pipe joint misalignment position in the pipe joint; step three, grouting and reinforcing the surrounding of the pipe joint misalignment position; step four, cutting and grinding the inner wall of the pipe joint misalignment position in the pipe joint; and step five, lining and repairing the pipe joint misalignment position in the pipe joint. The buried pipeline pipe joint misalignment repair method provided by the application can prevent the pipe joint misalignment from further developing seriously in the subsequent pushing and repairing process in step one, and can further restore the misalignment and prevent the misalignment from further developing seriously in step three. Through the non-excavation repair treatment, the repair of the third and fourth grade serious misalignment is realized, the pipeline flow section can be comprehensively restored, and the further development of the misalignment can be prevented.

The application relates to a leg power structure of a point foot and a wheel foot and a robot applying the same, and belongs to the technical field of robots. The leg power structure comprises a first joint, a variable-axis connecting piece, a second joint, a thigh connecting rod, a third joint and a shank connecting rod which are sequentially connected; the rotation axis of the first joint is perpendicular to the sagittal plane of the robot body, the rotation axis of the second joint intersects with the rotation axis of the first joint, the first joint drives the rotation axis of the second joint to deflect in the sagittal plane, so that the rotation axis is switched between a state parallel to the ground and a state perpendicular to the ground; and the rotation axis of the third joint is perpendicular to the rotation axis of the second joint in a space. Under the premise of not increasing the number of joints, the high dynamic performance of the foot-type robot and the omnidirectional maneuverability of the wheel-type robot are considered through space topology reconstruction, and the rotational inertia and the static power loss are reduced.

This invention relates to a variable tracked jujube harvester chassis, comprising a frame, a traveling mechanism, and a power unit. The frame has a connecting axle. The traveling mechanism includes two sets of tracked mechanisms, each comprising a drive wheel set, a guide wheel set, a support wheel set, a track, and a support beam. Both ends of a pair of support beams are connected to the connecting axle. The track loops around the support beam, drive wheel set, support wheel set, and guide wheel set. The drive wheel set and guide wheel set are located at opposite ends of the track. One end of the drive wheel set is connected to the connecting axle at one end of the support beam, and one end of the guide wheel set is telescopically connected to the connecting axle at the other end of the support beam. The upper ends of the support wheel sets are all connected to the support beam. The power unit is mounted on the frame and includes a power supply, a motor, and a reducer. The power supply is electrically connected to the motor, the motor is connected to the reducer, and the reducer is connected to the drive wheel set. This invention significantly improves the track's passability and obstacle-crossing ability by dynamically adjusting the track's ground contact shape and length through the guide wheel set.

The embodiment of the invention provides a cleaning robot. According to the technical scheme, the cleaning robot comprises a robot body, a swing arm, an auxiliary component and a clutch device. In the scheme of the embodiment of the invention, the swinging arm is provided with the advancing wheel and the power device, and is also provided with the auxiliary component and the clutch device, and the cleaning robot can smoothly advance on any advancing surface by changing the state of the clutch device. For example, when the robot crosses a low obstacle, the swing arm swings downwards, the clutch device can be in a separated state, and the power device drives the advancing wheels, so that the robot can pass. When the cleaning robot crosses a high obstacle, the swing arm descends, the clutch device can be switched to a joint state, the power device drives the advancing wheels and the auxiliary component to rotate at the same time, the auxiliary component swings downwards to assist the advancing wheels to climb over the obstacle, the obstacle crossing capacity of the cleaning robot is remarkably improved, and then the cleaning robot can adapt to various complex family environments; and the whole house cleaning requirement is met.

The utility model relates to the technical field of walking-aid carts for old people, and discloses a portable handcart, which comprises a front foot component, and front rollers are symmetrically arranged at the bottom of the portable handcart; the top of the rear foot assembly inclines upwards and is hinged to the top of the front foot assembly, and rear rollers are symmetrically arranged at the bottom end; the bottom of the backrest assembly is connected to the inner side of one end, close to the rear roller, of the rear leg assembly; the rear side of the seat surface is rotationally connected to the backrest assembly, and the front side is coaxially hinged to the tops of the front foot assembly and the rear foot assembly; the folding supporting mechanism is rotationally connected with the rear leg assembly and rotates forwards and backwards around the rear leg assembly to drive the front leg assembly, the backrest assembly and the seat surface to be unfolded and folded; the problems that in the prior art, a cart is not fixed after being folded and is prone to rotating and scattering during carrying, and carrying and storage are not facilitated are solved.

The invention relates to a reconfigurable multi-configuration power wheel set which comprises a crawler wheel set device, the crawler wheel set device comprises crawler bodies, crawler wheel bodies, shaft holes, first gears and second gears, the multiple crawler wheel bodies are in transmission connection in the crawler bodies, the shaft holes are formed in the outer walls of one sides of the crawler wheel bodies, and the first gears and the second gears are arranged in the shaft holes. First gears are fixedly connected to the outer wall of the other side of the crawler wheel body, and every two adjacent first gears are in transmission connection through a second gear; the shaft hole is reserved in the axis position of the crawler wheel body, rapid assembly of the crawler wheel set device and wheels of other types is achieved through the design, high reconfigurability and modular design are achieved, a user can flexibly adjust the types and the number of auxiliary wheels according to changes of specific working conditions, and the use experience of the user is improved. The obstacle crossing ability and environmental adaptability of various crawler walking mechanisms are greatly improved, and it is guaranteed that the device can operate efficiently in various complex environments.

The invention discloses a civil engineering material carrying AGV trolley, and relates to the technical field of automatic guided vehicles. The guide part is arranged at the front end of the bearing table, and the crawler walking parts are arranged at the four corners of the bottom of the bearing table. The crawler walking part comprises a support fixed to the side wall of the bottom of the bearing table and first supporting arms arranged on the two sides of the bottom of the support in an inclined mode, second supporting arms are arranged at the ends of the first supporting arms, the two ends of each second supporting arm are rotationally connected with supporting walking wheels through wheel shafts, and a driving wheel is further arranged on one side of the support. According to the AGV trolley, the crawler walking parts are arranged and conduct walking supporting through the crawler belts, so that the AGV trolley can be suitable for the road surface condition of a construction site, the four sets of crawler walking parts are arranged, each set of crawler walking parts is independently arranged, and therefore on one hand, the escape capacity of the whole AGV trolley is improved, and on the other hand, the functions of pivot steering and the like can be achieved; and the reliable transportation capacity on the construction site pavement is improved.

The utility model relates to the technical field of trundles, and particularly discloses a dip angle trundle which comprises a mounting base, a support rotationally connected to the bottom of the mounting base and a trundle body rotationally connected with the support, the trundle body is connected with the support through a rotating shaft, and the trundle body comprises a supporting framework and a trundle skin connected to the periphery of the supporting framework. The peripheral surface of the wheel skin comprises a ground plane and a reducing plane, the ground plane is in contact with the ground, the ground plane is located on the side, away from the support, of the reducing plane, and the diameter of the reducing plane is gradually reduced in the direction, close to the support, of the wheel body. The dip angle trundle has the effect of good obstacle crossing performance.

This application provides an obstacle-crossing control method for cleaning equipment and a cleaning equipment itself. The method includes: in response to a detected target obstacle meeting obstacle-crossing conditions, controlling the cleaning equipment to move towards the target obstacle; the target obstacle is an obstacle containing at least one step; for each step of the target obstacle, after the cleaning equipment has at least partially engaged with the current step of the target obstacle and the obstacle-crossing wheel legs have engaged with the current step, first controlling the drive wheel located on a first side to move forward, utilizing the support generated by the engagement of the obstacle-crossing wheel legs with the current step, so that both the obstacle-crossing wheel legs and the drive wheel located on the first side cross the current step; then controlling the drive wheel located on a second side to move forward, utilizing the support generated by the engagement of the obstacle-crossing wheel legs with the current step, so that both the obstacle-crossing wheel legs and the drive wheel located on the second side cross the current step. This method is used to achieve stable and efficient crossing of obstacles with heights exceeding conventional obstacle-crossing limits, improving cleaning coverage and equipment operational reliability.

This application relates to a mobile chassis and a wheeled robot. The mobile chassis includes: a chassis structure; a first wheel rotatably mounted on the chassis structure; and a suspension structure including two side cantilever arms arranged along a first direction, rotatably connected to the chassis structure, and the rotation axis of the side cantilever arms being arranged along the first direction; wherein a second wheel and a third wheel are rotatably connected to the side cantilever arms; the third wheel is located between the second wheel and the first wheel along a second direction; wherein the first direction intersects the second direction. In summary, the wheeled robot in this embodiment, through the above-described configuration, can reduce the risk of rollover, improve movement stability, and enhance obstacle-crossing ability.

The invention discloses a rope-driven rotor wing wind pressure collaborative building outer wall mobile operation platform, and belongs to the technical field of building outer wall operation equipment. The tail end platform, the rope traction module and the mobile upper computer are integrated, movement in any direction of the outer wall is achieved through parallel driving of ropes and combination of rotors, meanwhile, wind pressure cooperative adjustment of the rotors with the four cantilevers arranged in a rectangular and symmetrical mode is combined, the mobile platform is tightly attached to the outer wall for operation, and the platform leaves the outer wall for operation; and the shaking amplitude of the platform meets the operation requirement after leaving the outer wall. The platform does not need to be attached to an outer wall in a sealed mode, is matched with various wall faces such as concrete, metal, ceramic tiles and glass, can span protrusions and recesses of the outer wall face, and meets the requirement for long-time operation through endurance. The robot can selectively carry end actuators for detection, cleaning and the like, is suitable for scenes such as building outer wall detection, wall surface cleaning, teaching demonstration and the like, and has the remarkable advantages of light weight, accurate distance control, low cost, large moving range, high coverage rate and high safety.

The utility model relates to excavator technical field, concretely discloses a kind of distributed power unmanned excavator, including excavator main body, travelling mechanism and control system, travelling mechanism is equipped as four groups and is respectively connected in excavator main body both sides, for driving it in base surface travel, control system communication connection in excavator main body and travelling mechanism, so that excavator realizes automatic driving;Wherein, travelling mechanism includes track, transmission wheel, tension pulley, first support wheel, mounting plate and driver, wherein, mounting plate is connected in excavator main body by swivel pedestal mechanism;Transmission wheel, tension pulley and first support wheel are triangularly arranged and all are connected in mounting plate, track is around the outer periphery of transmission wheel, tension pulley and first support wheel;Driver is connected in mounting plate, and its output shaft transmission is connected in transmission wheel.

The utility model discloses a drawing plate suitable for various vehicle types, which relates to the technical field of conveying, logistics transportation and loading, and comprises a tongue plate, a rack, an upper roller and a roller component II, the tongue plate comprises an upper plate with an angle, a vertical plate, a lower plate, a vertical plate, a roller assembly I, a gasket, a mandrel I and a cotter pin; wherein the side face of the upper plate is fixedly connected with the vertical faces of the vertical plates, the upper face of the lower plate is fixedly connected with the lower face of the upper plate, the multiple vertical plates are distributed on the lower face of the upper plate, the first roller assembly is connected with the first mandrel, the first roller and the second roller can rotate along the first mandrel and the second mandrel respectively, and rubber-coated roller design is adopted for the first roller and the second roller. The bearing of the pulling plate on the carriage plate is reduced, on one hand, the rigidity of the whole pulling plate can be improved, on the other hand, the obstacle crossing capacity of the whole pulling plate can be improved, and the pressure on the carriage plate is also reduced.

The utility model relates to an amphibious spherical robot, including spherical shell, wheeled module, propeller module and foot leg module, spherical shell includes intermediate spherical shell and half spherical shell, installs center support in spherical shell, installs steering motor on center support, and steering motor connects heavy piece, be equipped with main beam and a plurality of support arms on center support, and half spherical shell is connected with support arm through spherical shell fixed support, propeller module is installed on main beam, and foot leg module is installed on support arm, wheeled module is installed on intermediate spherical shell, compared with prior art, the utility model has modularization design, combines multiple movement modes, has certain obstacle crossing ability and amphibious movement ability, adopts propeller module to make it can float on the water surface and can complete straight running and steering actions, adopts foot leg module under complex terrain conditions, satisfies obstacle crossing ability and other advantages.

The application discloses a reconfigurable double-trailing-arm independent suspension device, and belongs to the technical field of vehicles. The independent suspension device comprises a main shaft, an upper support, a spring damping element, an upper trailing arm, a knuckle, a lower trailing arm, a steering drag link, a steering actuator and a wheel. The upper support is fixedly connected to the main shaft. The upper trailing arm and the lower trailing arm are both hingedly connected to the main shaft. The knuckle is hingedly connected between the upper trailing arm and the lower trailing arm. One end of the spring damping element is hingedly connected to the upper support, and the other end of the spring damping element is hingedly connected to the middle part of the lower trailing arm. Two supporting rods are arranged on the knuckle. One end of the steering drag link is hingedly connected to one supporting rod of the knuckle, and the other end of the steering drag link is hingedly connected to the steering actuator. The other supporting rod of the knuckle is coaxially connected to the wheel hub of the wheel through a wheel hub rotating pair. The independent suspension device can normally support the vehicle body, and can also change the wheel track and the wheelbase under the driving of the main shaft, so that the passing requirement of the vehicle under different working conditions can be met, and the maneuverability of the vehicle is effectively improved.