44results about How to "Smooth ride" patented technology

The invention relates to a double-wheel stable swing arm structure of a vehicle. Comprising a frame, a wheel suspension frame and a support fixedly connected with the frame, and a support center hole is formed in the support and located on the left-right symmetry line of the support. A swing arm center hole is formed in the center of the swing arm, a swing arm left connecting hole is formed in the left end portion of the swing arm, a swing arm right connecting hole is formed in the right end portion of the swing arm, and the swing arm left connecting hole and the swing arm right connecting hole are arranged in a bilateral symmetry mode with the swing arm center hole as the left and right. A central shaft penetrates through the central hole of the bracket and the central hole of the swing arm for connection; the swing arm left connecting hole is fixedly connected with a left spring of the wheel suspension bracket, and the swing arm right connecting hole is fixedly connected with a right spring of the wheel suspension bracket. According to the technical scheme, when the left wheel and the right wheel swing up and down, the swing arms can compensate the head warping distance of the wheels so as to achieve'no head warping ', so that a vehicle runs more stably, and the long-term problem about the safety and comfort of vehicle head warping in the market is solved.

The utility model relates to the technical field of bicycle frames, and discloses a magnesium alloy frame with a damping cavity, which is characterized in that the magnesium alloy frame with the damping cavity comprises a saddle main shaft, two sides of the outer wall of the saddle main shaft are rotatably connected with rotating rods, the other ends of the rotating rods are rotatably connected with rear wheel inclined rods, and the rear wheel inclined rods are connected with the damping cavity. A second connecting block is fixedly connected to the outer wall of the saddle main shaft, a lower sleeve is rotatably connected to the outer wall of the second connecting block, a telescopic sleeve is fixedly connected to the top end of the lower sleeve, a moving rod is slidably connected to the inner wall of the telescopic sleeve, and a first buffering assembly is arranged on the outer wall of the moving rod. According to the shock absorber, the first spring is compressed through the movable rod, the movable rod drives the extrusion plate to extrude the pressed plate, the pressed plate compresses the second spring, and therefore the two-time buffering effect is achieved, and the honeycomb-shaped shock absorption cavity can absorb and disperse shock energy through deformation of the honeycomb-shaped shock absorption cavity, and the shock absorption effect is achieved.

The utility model discloses a flat plate type chassis of an agricultural unmanned trolley, which belongs to the technical field of agricultural vehicle parts, aims at solving the problem that the loss rate of crops is increased due to the fact that the agricultural vehicle generates large vibration in the driving process, and comprises a chassis frame, and two front wheels are rotatably arranged at the bottom of the chassis frame close to the front end. Two rear wheels are rotatably mounted at the positions, close to the rear end, of the bottom of the chassis frame, the cushioning mechanisms, the transverse cushioning springs and the longitudinal cushioning springs are matched, under the action of the pipe sleeves and the damping rods, vibration borne by the box body can be buffered, the situation that the vibration is transmitted into the storage box from the chassis can be effectively reduced, and the storage box is convenient to use. By means of the technical scheme, the vehicle can run more stably, the stability and safety of crops in the transportation process are improved, the crops can be prevented from being excessively squeezed, collided and damaged in the transportation process, and especially for easily-damaged fruits and vegetables, the shape and quality of the fruits and the vegetables can be kept, and the loss rate is reduced.

The invention discloses a self-repairing mute tire and a preparation method thereof, and relates to the technical field of tires, the self-repairing mute tire comprises a tire body, and a self-repairing rubber layer and a mute material which are sequentially attached to the inner wall of the tire body from inside to outside; the self-repairing adhesive layer is prepared from the following components: epichlorohydrin rubber, acrylate rubber, a rosinyl phenyl phosphine oxide isoxazolyl functional polymer, 4, 4-chloroformyl phenyl ether, a catalyst, 2, 2-bis [4-(4-aminophenoxy) phenyl]-1, 1, 1, 3, 3, 3-hexafluoropropane, trithiocyanuric acid, a filler, an accelerant TMTD (Tetramethylthiuram Disulfide) and an auxiliary agent; the rosinyl phenyl phosphine oxide isoxazolyl functional polymer comprises structural units introduced through a condensation polymerization reaction of the following monomers: glycerol triabietate, bis (4-carboxyl phenyl) phenyl phosphine oxide and 3, 5-isoxazoledicarboxylic acid. The tire is remarkable in self-repairing effect, good in mute performance, sufficient in performance stability and long in service life.

This invention provides a three-trailer collaborative aircraft transfer method and system based on multi-sensor fusion. This invention relates to the field of aircraft ground support technology, specifically to a three-trailer collaborative aircraft transfer method based on multi-sensor fusion, applicable to short-haul aircraft ground transport to hangars. Through multi-sensor data fusion and multi-trailer collaborative control, it improves transfer accuracy, safety, and efficiency. The method specifically includes the following steps: system setup and sensor calibration; trailer attitude initialization and collaborative parameter configuration; real-time acquisition and preprocessing of multi-sensor data; multi-sensor data fusion and state estimation; dynamic path planning based on fused data; attitude error quantification and calibration based on complex statistics; multi-trailer collaborative driving control and traction distribution; real-time environmental monitoring and risk warning; precise docking at the hangar entrance and attitude fine-tuning; and parking and system review and optimization.

The invention discloses a control method for operation equipment and a related device, and relates to the technical field of operation equipment. The control method comprises the following steps: determining a driving path and a target end point based on environment information collected by operation equipment; determining a first distance between the current position of the operation equipment and the target end point; based on a comparison result between the first distance and a preset threshold value, adopting a first control strategy or a second control strategy to drive the operation equipment to move, wherein under the condition that the first distance is greater than the preset threshold value, path tracking is carried out along the driving path by adopting the first control strategy; and under the condition that the first distance is smaller than or equal to the preset threshold value, switching to the second control strategy to enable the operation equipment to move to the target end point. According to the invention, the operation precision of the unmanned forklift in a complex outdoor scene can be improved.

The application belongs to the technical field of energy management, and discloses a multi-mode energy management method and device for a range-extender hybrid electric vehicle, which comprises the following steps: obtaining driving mode information and detecting battery pack residual capacity data, vehicle speed and driver demand power; processing the driving mode information, the battery pack residual capacity data, the vehicle speed and the driver demand power to obtain a vehicle running state; obtaining the current battery pack residual capacity data according to the vehicle running state and processing the current battery pack residual capacity data to obtain a range extender start-stop state, a power generation mode and a target capacity. The application can realize multi-mode energy management and fine control of the range-extender hybrid electric vehicle.

The invention relates to a vehicle floating running control system and method, a wheel, electronic equipment and a vehicle, the wheel of the vehicle comprises a spoke, the spoke comprises a spoke shaft and spoke blades arranged on the spoke shaft in a sleeving mode, and the system comprises an electronic controller and a wheel driving unit. Wherein the electronic controller is used for sending a wheel driving signal to a wheel driving unit of the vehicle based on a received floating driving instruction when the vehicle is in a floating state; and the wheel driving unit is used for controlling the wheel to rotate based on the wheel driving signal and controlling the spoke blades to rotate along with the wheel after rotating relative to the spoke shaft, so that the vehicle is driven to run in a floating manner through the relative acting force of the spoke blades and water. The stability of the vehicle during floating driving can be improved, and the floating driving capacity of the vehicle can be enhanced.

The utility model discloses a sliding plate support base wheel set which comprises a base and a support, the base and the support are respectively provided with a containing cavity, a spring is arranged between the containing cavity of the base and the containing cavity of the support, a taper groove A assembled with the spring is formed in the containing cavity of the base, a taper groove B assembled with the spring is formed in the containing cavity of the support, and a taper tangent plane A is arranged at the end, making contact with the taper groove A, of the spring. The end, making contact with the taper groove B, of the spring is provided with a taper tangent plane B. The spring is tightly assembled in the taper groove A of the base through the taper tangent plane A. The spring is tightly assembled in the taper groove B of the support through the taper tangent plane B. Through the design, the spring is tightly connected with the base and the support, when the spring is used for a long time, the taper grooves of the support and the base become wider under friction and extrusion of the spring, connection between the spring and the taper grooves is more compact under the axial pressure of the spring, the action is more accurate in the using process, operation is quiet, and the service life of the spring is prolonged. The sliding plate support base wheel set is particularly suitable for sliding plates, land impact plates, sliding plate frames and other related products.

This application discloses a tracked transfer vehicle for transporting blade beams, belonging to the field of blade beam transportation technology. It mainly includes a loading vehicle body; a tracked walking assembly, which includes protective covers symmetrically arranged on both sides of the loading vehicle body. Inside the protective covers are installed a motor, drive wheels, guide wheels, and the track body. The motor drives the drive wheels through a sprocket meshing with a chain inside the track body. The guide wheels are connected to the inner wall of the protective cover via tension springs for adjusting the tension of the track body; and a docking assembly, located inside the loading vehicle body, for connecting to the rack docking section. The tracked transfer vehicle for transporting blade beams of this application, with its large track contact area and strong grip, combined with dynamic tension adjustment of the tension springs, can buffer the impact of bumps, reduce the risk of blade beam displacement due to vibration, and avoid structural damage caused by uneven local stress. Its toothed chain has better engagement ability than rotating wheels in extreme icy and snowy weather, reducing the probability of slippage and ensuring stable driving on low-friction surfaces.

A vibration damping device, a suspension system, and a vehicle are disclosed to reduce the size and weight of the suspension device. The vibration damping device includes a damper (100), a first actuator (200), a first diaphragm (140), and a second diaphragm (150). The damper (100) includes a housing (110), a piston (120), and a piston rod (130). The piston (120) is disposed within the housing (110), dividing the housing (110) into a first cavity (113) and a second cavity (114). The piston (120) has a first receiving cavity (124) and a second receiving cavity (127). The first receiving cavity (124) communicates with the first cavity (113) through a first damping hole (125) and with the second cavity (114) through a second damping hole. (126) Connected; Piston rod (130) extends into the first cavity (113) and connects with piston (120); First diaphragm (140) separates the first accommodating cavity (124) from the second accommodating cavity (127), and second diaphragm (150) separates the second accommodating cavity (127) from the second cavity (114); First actuator (200) is disposed in the second accommodating cavity (127), including mover (210) and stator (220), the two ends of mover (210) are respectively connected to the first diaphragm (140) and the second diaphragm (150), and stator (220) is connected to piston (120) for driving mover (210) to move.

The application discloses a highway cooperative decision safety driving method, comprising the following steps: S1, acquiring vehicle end sensing information and road end sensing information and performing information fusion; S2, establishing a plane rectangular coordinate system, and establishing a speed potential field, a lane potential field, a road boundary potential field and a solid obstacle potential field on a road surface according to the fused sensing information; wherein the speed potential field enables a vehicle to travel at a set expected speed, the lane potential field enables the vehicle to travel in a current lane, the road boundary potential field enables the vehicle to travel away from a road boundary, and the solid obstacle potential field enables the vehicle to travel away from a solid obstacle; S3, a traveling vehicle is affected by a total potential field formed by superposition of the speed potential field, the lane potential field, the road boundary potential field and the solid obstacle potential field, and target accelerations of the vehicle in a driving direction and a transverse direction are obtained according to a potential field intensity gradient of the total potential field at a vehicle position in the driving direction and the transverse direction; and S4, the vehicle travels according to the target accelerations in the driving direction and the transverse direction.

The utility model provides a light leakage prevention vehicle-mounted backlight source rubber frame. The light leakage prevention vehicle-mounted backlight source rubber frame comprises a first frame body, a second frame body is installed at the bottom of the first frame body, a sealing frame body is installed at the bottom of the first frame body, a sealing groove is formed in the top of the second frame body, and assembling plates are installed on the first frame body and the second frame body. And sealing rubber rings are mounted on the inner sides of the first frame and the second frame, a mounting groove is formed in the bottom of the second frame, and a fixing block is mounted in the mounting groove. The sealing frame is installed at the bottom of the first frame, the sealing groove is formed in the top of the second frame, and the sealing frame is matched with the sealing groove, so that the connection sealing degree between the first frame and the second frame is higher, meanwhile, the sealing rubber ring is installed at the joint of the inner sides of the first frame and the second frame in an attached mode, and the sealing effect is better. Therefore, the connection sealing degree of the first frame and the second frame can be increased, and the condition of light leakage of the backlight source is prevented.

The utility model belongs to wall -climbing robot technical field especially relates to a kind of negative pressure adsorption wall -climbing robot, including robot body;Culvert component, it is set in robot body, the air inlet of culvert component is opened at the bottom end of robot body, the air outlet of culvert component is opened at the top end of robot body and towards the tail end of robot body;Turbulence component, it is fixedly set at the bottom end of robot body around;Filtering component, it is fixedly set at the bottom end of robot body, and filtering component cover is set in the air inlet of culvert component.The utility model can improve the stability in the process that robot climbs wall.

The utility model relates to the technical field of logistics management equipment, and discloses a goods picking vehicle for a logistics warehouse, which comprises a vehicle frame, a plurality of insertion holes are arranged in the vehicle frame, a goods picking box is arranged on the inner side of the vehicle frame, a push rod is slidably connected in the goods picking box, a positioning pin is fixedly connected to the front side of the push rod, and the front side of the positioning pin is fixedly connected with the goods picking box. A spring is fixedly connected to the rear side of the positioning pin, the side, away from the push rod, of the spring is fixedly connected to the inner wall of the picking box, and a second goods blocking frame is fixedly connected to the upper side of the picking box. According to the goods picking box, under the cooperation of the inserting holes, the positioning pins, the springs, the push rods and the sliding grooves, the height of the goods picking box can be freely adjusted, and the number of the goods picking boxes can be increased, so that the goods picking box can adapt to goods of various sizes while being adaptive to different goods shelf heights during goods picking, the stooping goods picking frequency is reduced, and the single-time loading capacity is increased; the goods picking efficiency is improved, and the requirements of multi-scene goods are met.

The utility model provides a bicycle lamp magnetic attraction buckle, relates to the technical field of bicycle tail lamps, and solves the problems that an existing bicycle lamp is insufficient in stability and inconvenient to disassemble and assemble. The bicycle lamp comprises a fixing base detachably installed at the tail of a bicycle and a bicycle lamp detachably installed on the fixing base, an installation groove is formed in the front face of a fixing base body in an inwards-concave mode, a set of square buckles are symmetrically arranged on the two inner side walls of the installation groove, a first magnet is arranged in the installation groove, and the bicycle lamp comprises a bicycle lamp body. A mounting block corresponding to the mounting groove is fixedly connected to the back face of the vehicle lamp body, two sets of square clamping grooves corresponding to the square buckles are formed in the four faces of the peripheral wall of the mounting block, and second magnets matched with the first magnets are arranged on the face, facing the mounting groove, of the mounting block. The utility model has the beneficial effects that the requirements of different customers can be met, and the mounting of the fixed seat is more stable; and the bicycle lamp is more stable during riding.

The invention relates to the technical field of agricultural machinery gearboxes, in particular to an agricultural machinery gearbox with a differential lock function and a method. The invention discloses an agricultural machinery gearbox with a differential lock function. A differential lock locking mechanism and a hand brake braking mechanism are arranged in a main body; the differential lock locking mechanism comprises a differential lock switch, an oil cylinder, a clutch claw and a return spring; the hand brake braking mechanism comprises a pull rod, a pressure plate and a driven plate; the invention further provides an agricultural machine speed change method with the differential lock function. The differential lock locking mechanism can lock the differential mechanism to enable tires on two sides to be rigidly connected and synchronously obtain power when tires on one side of an agricultural machine slip, so that a vehicle is prevented from slipping under bad road conditions such as muddy and snowfield, and stable running is guaranteed; the hand brake braking mechanism drives the pressure plate by operating the pull rod to control the contact or separation of the driven plate and the three shafts of the transmission mechanism, so that the power transmission is cut off or recovered, the vehicle is reliably parked, and the vehicle sliding is prevented.

This utility model discloses an electric scooter with an adaptive slope that can be connected to a cargo platform. It includes an electric scooter and a cargo platform located at the front of the scooter. A triangular wheel frame is provided at the front of the scooter. A hub motor wheel and a rotatably connected upright frame are fixed to the bottom and rear corners of the triangular wheel frame, respectively. A shock absorber is rotatably mounted at the front corner of the triangular wheel frame, and the top of the shock absorber is rotatably connected to the front of the upright frame. A horizontally rotating seat is rotatably provided at the rear of the upright frame. The pedal structure and cargo platform of the electric scooter are both fixed to the rotating seat. This application uses a triangular wheel frame to provide three mounting points for rotatably mounting the upright frame and shock absorber. This allows the upright frame to be bidirectionally damped when swinging. The pedal structure and cargo platform are then rotatably mounted to the upright frame via the rotating seat, allowing them to swing synchronously. Ultimately, the entire scooter has the function of adaptive slope and adjustable horizontal posture during riding. Furthermore, during vertical swinging, the shock absorber reduces the swing amplitude and slows down the swing process, resulting in greater stability.

This utility model provides a motorcycle with an adjustable shock-absorbing frame, belonging to the field of motorcycles. The motorcycle includes a body assembly comprising a frame, a chassis mounted to the bottom of the frame, and flexible frames at both ends of the chassis. Wheels are mounted to both ends of the two flexible frames. The four corners of the frame are connected to the top sides of the two flexible frames via shock-absorbing components. This utility model utilizes two first mounting blocks, two second mounting blocks, two flexible frames, two sets of upper connecting parts, and two sets of lower connecting parts in conjunction with two sets of shock absorbers to dampen the front and rear ends of the frame. The different orientation angles of the two sets of shock absorbers allow for vertical adjustment between the frame and chassis during motorcycle riding, improving the shock absorption effect between the frame, chassis, flexible frames, and the two sets of wheels, thus enhancing rider safety and riding comfort.

The application relates to a longitudinal-lateral stability control method based on phase plane analysis, which comprises the following steps: constructing a vehicle-road model based on the kinematic relation between a vehicle and a target path and a vehicle model; obtaining road environment information and vehicle state information, establishing a phase plane with an instability energy ratio and a change rate of the instability energy ratio, setting a stability judgment criterion, and judging the vehicle working condition based on phase plane analysis; when the vehicle is in different working conditions, MPC control is carried out through corresponding path tracking controllers: in a stable working condition, a path tracking controller one based on the vehicle-path model MPC control is designed with the total lateral force of the front wheels of the vehicle as the control quantity; in an instability working condition, the parameters of the path tracking controller one are adjusted with the additional yaw moment of the vehicle to obtain a path tracking controller two. The application provides a reasonable decision method for different working conditions, and effectively improves the longitudinal-lateral stability and tracking performance of the vehicle.

The application relates to the electric drive technology field of new energy vehicles, in particular to a differential protection method and device, an electric vehicle and a storage medium, wherein the method comprises the following steps: acquiring the output torque of a driving motor in the electric vehicle; if the output torque is in a preset torque interval, activating the differential protection function of the differential and / or the gravity control system of the electric vehicle, wherein the execution priorities of the gravity control system and the differential protection function are different; reducing the output torque of the driving motor by using the differential protection function and / or the gravity control system, so as to reduce the speed difference between the half shafts in the differential, until the speed difference is less than a first preset value. Thus, the problem that the differential is prone to failure and the vehicle is prone to failure due to long-time wear and tear of the differential exceeding the design boundary in the prior art is solved, the service life of the electric vehicle is reduced, and the user experience is poor.

The invention relates to the technical field of agricultural automation equipment, and discloses a continuously working grape picking robot with a stacking system.The continuously working grape picking robot comprises a chassis, a rotary table, a mechanical arm, a goods shelf and the stacking system.The chassis comprises an aluminum profile frame, two steering wheels and two universal wheels, and the two steering wheels are symmetrically installed along one diagonal line of the chassis; the two universal wheels have steering and driving functions, are symmetrically installed along the other diagonal line of the chassis and are used for auxiliary supporting and flexible steering. The grape picking robot provided with the stacking system and capable of working continuously is high in space utilization rate and capable of achieving continuous operation, grape frames are circularly transferred and stored on the robot, empty frame and full frame storage positions are reused, the system integrates the functions of automatic collection frame replacement, automatic transfer and storage and automatic navigation walking, a plurality of collection frames can be full through one-time operation, and the working efficiency is improved. Long-time continuous automatic picking is achieved, and the manual labor intensity and the production cost are greatly reduced.

The invention relates to the technical field of power grid service robot path planning, and discloses an indoor service robot path planning method combined with business area semantic annotation, comprising the following steps: collecting physical space data and visual data of a power grid business hall through multiple sensors, and processing to generate a two-dimensional map; determining starting point and terminal point target positions of the robot, and setting core constraints; searching an initial feasible path from the starting point to the ending point; curvature smoothing and node density adjustment are carried out on the initial feasible path, and an optimized path is generated; in the running process of the robot, the deviation between the actual track of the obstacle and the predicted track is compared in real time, when the deviation exceeds a threshold value, local path re-planning is conducted, and an adjustment path is generated. According to the method, operation risks such as confidential information leakage and service process interruption caused by path violation are avoided, deep matching with power scene business attributes is realized, the robot timely deals with personnel sudden actions, and the collision risk is greatly reduced.

The application discloses an AGV trolley with a safety detection structure, which comprises an AGV trolley body, wherein the AGV trolley body is internally provided with a control module, the top of the AGV trolley body is provided with a supporting plate, the top of the supporting plate is provided with a first roller, the surface of the first roller is provided with a plurality of groups of convex points, the number of the first rollers is four groups, and two groups of the first rollers are vertically installed. The graphene coating, the conductive metal sheet and the blue warning lamp are installed, the graphene coating is in the shape of an open ring, is arranged on the side of the first roller, can be selectively connected with the conductive metal sheet by rotating with the first roller, the rubber sleeve is wrapped around the surface of the first roller, the friction is increased, the driving force of the goods shelf on the rotation of the first roller is increased, the goods shelf is ensured to be offset and slid, the first roller can be accurately rotated, the graphene coating can be timely connected with the conductive metal sheet, a closed circuit is formed to supply power to the blue warning lamp, and the control module can timely receive the goods shelf offset information.

The embodiment of the application provides a vehicle induction data generation method, comprising: generating a plurality of map feature data of a target road section according to map data of the target road section, a plurality of vehicle behavior data and a plurality of traffic flow interaction data; determining a map feature data set of each vehicle behavior data according to a mapping relationship between each vehicle behavior data and each map feature data, wherein each map feature data set comprises a plurality of map feature data; and performing matching on the map feature data set of each vehicle behavior data and the map data of the target road section to generate target vehicle induction data of the target road section. The embodiment of the application provides a vehicle induction data generation method, device and electronic equipment, which can generate vehicle induction data to improve the accuracy of the map, thereby improving the humanized driving function of the autonomous vehicle.

The utility model discloses a hybrid power motorcycle which comprises a frame and a range extender, the frame is provided with a driving motor, the driving motor is connected with a power battery, the power battery is used for supplying power to the driving motor, and the driving motor is used for driving the motorcycle. The range extender is connected with a fuel tank, the range extender and the fuel tank are arranged on the frame, the range extender is provided with two output ends, and the two output ends are electrically connected with the driving motor and the power battery respectively. The range extender can directly supply power to the driving motor to drive the motorcycle and can also supply power to the power battery, so that the power battery has sufficient electric quantity to supply power to the driving motor, the problems of low running speed, instability and the like of the motorcycle when the electric quantity of the motorcycle is low are solved, the cruising ability of the electric motorcycle is improved, and the service life of the motorcycle is prolonged. And the driving comfort and safety are improved.

The utility model belongs to the technical field of knapsacks, and particularly relates to an electric riding knapsack. In order to overcome the defect that an existing backpack is single in function, the technical scheme adopted by the utility model is as follows: the electric standing riding backpack comprises a riding device, a backpack; the riding device comprises a riding main support, two universal wheels and two telescopic pedal assemblies, the two universal wheels and the two telescopic pedal assemblies are arranged on the riding main support, the telescopic pedal assemblies move left and right relative to the riding main support and are switched between the riding position and the storage position, and each telescopic pedal assembly comprises a telescopic support, a control pedal and a wheel with a hub motor. The telescopic pedal assembly and the universal wheel are distributed front and back; the riding device further comprises a battery and a controller, the control pedal swings front and back relative to the telescopic support, a sensor is arranged on the control pedal and detects the front-back swing angle of the control pedal, and the controller controls the two hub motors according to front-back swing angle signals detected by the sensor. The backpack has the advantage that the riding function of the backpack is achieved.

The invention belongs to the technical field of unmanned aerial vehicles, and discloses an air-ground amphibious heavy-load unmanned aerial vehicle which aims at solving the problems that an existing heavy-load unmanned aerial vehicle is weak in complex ground movement and obstacle crossing capacity and poor in landing impact buffering performance, the air-ground amphibious heavy-load unmanned aerial vehicle comprises a heavy-load unmanned aerial vehicle body and a take-off and landing support, hollow supporting rods are arranged on the two sides of the bottom of the support, and the two ends of each rod are rotationally connected with obstacle crossing arms; an arm end servo motor drives a driving rubber wheel and a driven rubber wheel to operate synchronously through a belt wheel and a synchronous belt, an electric telescopic rod on the side portion of a lifting support drives a friction block through a pushing connecting rod, a sliding block and the like to be matched with a friction shaft of a driven belt wheel, and rotation resistance of the obstacle crossing arm is adjusted in a stepless mode. According to the unmanned aerial vehicle, stable ground movement and lifting obstacle crossing can be achieved through power distribution of the servo motors, the unmanned aerial vehicle adapts to different obstacles, the obstacle crossing arms are in a splayed posture during landing, impact energy is converted into friction force of the rubber wheels to be dissipated, the structure is simple and light, trafficability, stability and safety are considered, and the unmanned aerial vehicle is suitable for operation in multiple complex scenes.