1260results about "Axle units" patented technology

An electric axle assembly includes a banjo axle housing, first and second half shafts, and an electric drive unit. The banjo axle housing has a central portion that defines a receiving space and first and second openings providing access to the receiving space, first and second beams extending from the central portion in opposite first and second axial directions, and defining first and second beam hollows in communication with the receiving space. The half shafts extend within the first and second beam hollows. The electric drive unit includes a motor, a differential, and a housing having first and second housing components. At least one of the first and second housing components defines a motor housing region, the first and second housing components define a gearbox region, and the first and second housing components define first and second apertures that provide access for coupling the half shafts with the differential.

The invention discloses a transverse fixed axle assembly capable of achieving Ackerman steering through mechanical linkage, and belongs to the technical field of engineering vehicle chassis. A rear axle is transversely and rigidly fixed to a frame through a shear-resistant box girder structure, and a front axle is connected to the frame through two springs; the rotating pair structures are symmetrically arranged at the two ends of the axle main body and comprise embedded heavy-duty bearings; one end of the steering knuckle arm is hinged to the axle main body through a rotating pair structure, and the other end is connected with the steering pull rod; one end, far away from the rotating pair structure, of the steering pull rod is connected with the steering oil cylinder; the steering pull rod of the front axle and the steering pull rod of the rear axle are crossed and hinged in an X shape, so that intersection points of axes of the front and rear wheels converge at an instantaneous steering center during steering. Abrasion and slipping of tires can be reduced, steering precision is ensured through a pure mechanical structure, the failure risk of an electric control system is avoided, and the system is suitable for heavy equipment such as mining trucks and port cranes.

The invention discloses a posture adjustment driving mechanism and a hinged type all-terrain vehicle, the posture adjustment driving mechanism is connected with a frame, and longitudinal driving axles are arranged on the left side and the right side of the frame. The posture adjusting driving mechanism is provided with a side bridge adjusting mechanism. A lifting driving mechanism is arranged at the rear end of the side bridge adjusting mechanism and can drive the single-side longitudinal driving axle to swing up and down; a differential mechanism linkage system is arranged at the front end and comprises a differential mechanism connected with the frame, half shafts at the two ends of the differential mechanism are connected with the longitudinal drive axle through a multi-connecting-rod mechanism, the differential mechanism is provided with a decoupling mechanism, and connection between the half shaft on the single side and a differential mechanism shell can be removed. A power mechanism and a gearbox are fixed to the frame and provide walking power for the longitudinal drive axle. The longitudinal drive axle is composed of a middle axle frame, a hollow swing arm and the like, power transmission, steering control and independent height adjustment can be achieved, and the passing adaptability of complex terrains is effectively improved.

The invention discloses a large equipment reversing transfer device and method, and relates to the field of transfer devices.The large equipment reversing transfer device comprises a transfer flatcar, a saddle is installed on the bottom side of the transfer flatcar, wheel supporting arms are installed at the four corners of the saddle, and wheels are rotationally installed on the wheel supporting arms; the device further comprises an advancing detection device, and the advancing detection device is installed on one side of the transfer flatcar. It needs to be explained that when the transfer flatcar advances, obstacles are detected through reciprocating movement of a transverse moving sliding rod, a starting switch is triggered when the obstacles or an obstacle road surface is detected, so that an obstacle avoidance pull-out frame drives wheels to move outwards, and when the obstacles are detected, front and rear wheels are actively and synchronously pushed outwards to enlarge the wheel distance; wheels directly pass through the two sides of an obstacle, the trafficability, safety and efficiency of the flatcar on complex and unknown road surfaces are remarkably improved, and parking, bumping, equipment damage and even accidents caused by the obstacle are reduced.

The invention discloses an agricultural machinery steering axle tube beam formed by a seamless steel tube and a manufacturing method thereof, and relates to the technical field of engineering machinery parts, the agricultural machinery steering axle tube beam is of a symmetrical variable cross-section variable wall thickness hollow rectangular structure, is composed of a tube beam middle part, a tube beam neck part and tube beam two ends, and is in an inverted convex shape with a flush upper surface, consistent width and a raised middle lower part. The middle size of the tubular beam meets performance requirements and oil cylinder support mounting requirements, and a round hole for mounting a supporting bearing seat is formed in the tubular beam; the lower surfaces of the two ends of the tubular beam are higher, and arc-shaped grooves welded with main pin seats are formed in the outer sides; the upper surface and the width of the neck of the tubular beam are unchanged, and the lower surface gradually rises through two transition arcs and is connected with the middle of the tubular beam and the two ends of the tubular beam respectively. The pipe beam is manufactured by heating, reducing, bending, pressing and machining a seamless steel pipe, the impact resistance of a product is good, the weight is reduced by more than 15% compared with that of a welding structure, the material utilization rate reaches 95%, and the universality is high.

The utility model provides a novel self-power-generating wheel body structure with a shaft wheel rotating synchronously without differential speed, which relates to the technical field of power-generating wheels and comprises a fixed part and a rotatable part which are arranged in a coupling mode. The rotatable part comprises a wheel, and a connecting component is arranged in the rotatable part; the connecting component is provided with a mounting position for mounting a power part; the power part is driven by a power source to generate torque, and then the rotatable part is driven to rotate relative to the fixed part with an axis as the center. A magnetic ring and a generator core which are correspondingly used are arranged at the joint of the fixed part and the rotatable part; the rotatable part rotates relative to the fixed part, so that the generator core and the magnetic ring rotate relative to each other to cut magnetic lines of force to generate current. The self-generating wheel body has the beneficial effects that the blank of the self-generating wheel body in the existing market is filled, the self-generating wheel body can be applied to a wheel body which is represented by a child tricycle and is positioned on a front fork, and the wheel body is driven to rotate through pedal rotation so as to synchronously generate electricity or emit light.

An on-board electronics system of an aerial work platform moves the wheels between a retracted and extended position by pivoting a respective arm. The method comprises the following successive steps: a) orienting each wheel tangentially to the pivoting path of the corresponding arm, b) moving the wheel by pivotally actuating the corresponding arm, and c) reorienting the wheel so as to enable another translation of the aerial work platform. The steps are performed in different orders between the wheels so that at any time at least one of the following conditions is complied with: —the brake system of at least one wheel is active, —at least one wheel is rotated by a motorised drive, —the orientation of the wheels relative to one another prevents any translation of the aerial work platform (1) on the ground as a result of gravitational force.

A spindle assembly of an axle assembly includes an elongate body partially forming a first cavity and a second cavity. A seal is coupled to the elongate body at a location between the first cavity and the second cavity, and the seal is configured to be in contact with an axle shaft to fluidly seal the first and second cavities from one another. A breather is coupled to the elongate body and disposed in fluid communication with the second cavity. A sleeve is also coupled to the elongate body. The sleeve includes a notch that forms at least a portion of a drainage passage through which a fluid in the second cavity may flow from an upper portion of the second cavity to a lower portion thereof.

The application belongs to the field of axle housing preparation, and particularly relates to a welding device for axle housing back cover and reinforcing ring, which comprises an axle housing body and a back cover and a reinforcing ring respectively welded on both sides of the axle housing body, and the welding device comprises first welding devices for spot welding the back cover and the reinforcing ring on both sides of the axle housing body respectively and second welding devices for full welding of the spot-welded back cover and reinforcing ring; the second welding device comprises a base, a first clamping mechanism arranged on the base for clamping and driving the axle housing to rotate, a second clamping mechanism arranged on the base and opposite to the first clamping mechanism, a first welding equipment for full welding of the reinforcing ring on one side of the base, and a second welding equipment for full welding of the back cover on one side of the base, and the first welding equipment and the second welding equipment can simultaneously perform full welding on the reinforcing ring and the back cover respectively; the welding of the reinforcing ring and the back cover can be completed through cooperation of the first welding device and the second welding device, and the processing efficiency is greatly improved.

The invention discloses a gearbox for an electric drive axle. Comprising a main motor, an input shaft, an intermediate shaft, an output shaft, a gear shifting mechanism, a planetary gear mechanism, a fixed tooth holder, a first power transmission mechanism used for transmitting power from the main motor to the input shaft, and a second power transmission mechanism used for transmitting power from the input shaft to the intermediate shaft and the output shaft. The planetary gear mechanism comprises a sun gear connected with the intermediate shaft, a planet carrier assembly connected with the differential mechanism assembly, a planet gear arranged on the planet carrier assembly and meshed with the sun gear, and a gear ring assembly meshed with the planet gear. The gear shifting mechanism is arranged to be matched with the fixed tooth holder, the planet carrier assembly and the gear ring assembly, and the planet gear mechanism is controlled to be switched among the neutral gear state, the first gear state and the second gear state. According to the gearbox for the electric drive axle, the planetary gear mechanism capable of being switched to the neutral gear state is arranged, and mechanical disconnection of the tail end of a transmission chain during parking power take-off of the electric drive axle and cruising and trailer can be achieved. The invention further discloses an electric drive axle and an automobile.

The invention discloses a drive-by-wire chassis device and a vehicle. A drive-by-wire chassis comprises a driving assembly and a suspension assembly, and the driving assembly comprises a driving motor; the input end of the multi-stage transmission system is connected with the output end of the driving motor, and the multi-stage transmission system is used for transmitting power to the wheel end and achieving switching of at least two speed ratios; the integrated axle housing is provided with an accommodating cavity for accommodating the multi-stage transmission system; the integrated axle housing comprises a plurality of mounting surfaces with different surfaces, and the mounting surfaces are used for being connected with different functional parts and suspension assemblies in the multi-stage transmission system correspondingly. And the running and parking integrated brake is arranged in the integrated axle housing, is integrated on a power transmission path of the multi-stage transmission system, and provides parking and running braking functions for wheels. According to the scheme, at least two speed ratios are switched through the multi-stage transmission system, and the multi-working-condition requirements of adaptive heavy-load starting, high-speed cruising and the like are met. In addition, according to the scheme of the invention, a plurality of different mounting surfaces are processed on the integrated axle housing, so that higher structural integration level and bearing reliability are realized.

The invention provides a magnetic wheel set with an adjustable magnetic direction and a crawling robot, and relates to the field of crawling robots, the magnetic wheel set comprises a hub mechanism, a permanent magnet adsorption unit, a permanent magnet driving mechanism and a wheel set driving mechanism, the permanent magnet adsorption unit is rotatably connected with the hub mechanism, and the permanent magnet driving mechanism drives the permanent magnet adsorption unit to rotate and adjust; according to the robot, the permanent magnet driving mechanism and the wheel set driving mechanism which are independent are arranged, so that the crawling robot can continuously advance according to the requirement of wall surface transition, and the robot can be driven by the wheel set driving mechanism to rotate according to the requirement of wall surface transition under the condition that the robot continuously advances. The direction of the permanent magnet adsorption unit is rapidly adjusted in real time, the problem that in the prior art, due to the fact that arc magnets generate strong adsorption on the double wall faces at the same time, huge transition resistance is caused is effectively solved, the wall face transition action of the robot becomes smooth, labor is saved, and the robot is highly reliable.

A steering drive for a steering axle of a steerable vehicle includes an electric motor with a motor shaft. A steering lever is rotatable about a pivot axis that is parallel to the electric motor. First and second planetary stages each have a sun gear, planet gears, and a planet carrier. The steering drive is configured such that a force flow runs from the first sun gear via the first planet gears to the first planet carrier. The force flow furthermore runs via the second sun gear and via the second planet gears to the second planet carrier, and furthermore runs to the steering lever. The steering drive has a spur gear stage and is configured such that a force flow from the motor shaft to the first sun gear runs via the spur gear stage. Also disclosed is a steering axle and an industrial truck.

A suspension unit for suspending a wheel and tire assembly from a vehicle frame includes a hanger, a control arm, a spindle assembly, a jounce spring, a rebound spring, a camber adjustment mechanism, and a toe adjustment mechanism. The spindle assembly is connected to an upper wall top surface of the control arm at an upper wall terminal end. The jounce spring is positioned between the upper wall top surface and a top wall bottom surface of the hanger. The rebound spring is positioned between a forward wall outer surface of the control arm and a front wall inner surface of the hanger. A mounting bolt connects the control arm to the hanger. The camber adjustment mechanism is configured to change a first position of a mounting bolt first end of the mounting bolt along a y-axis relative to a second position of a mounting bolt second end along the y-axis. The toe adjustment mechanism is configured to change a third position of the mounting bolt first end or the mounting bolt second end along an x-axis relative to a fourth position of an opposing mounting bolt end along the x-axis.

An electric drive axle of a new energy automobile comprises a drive motor, a speed reducer, a controller and a differential mechanism, the drive motor, the speed reducer, the controller and the differential mechanism are installed in a shared shell, a drive motor installation cavity is formed in the middle of the shared shell, a speed reducer installation cavity is formed in one side of the drive motor, and a controller installation cavity is formed in the other side of the drive motor. A differential mounting cavity is formed in the front side of the speed reducer, axle tube connecting parts are arranged on the left side and the right side of the differential mounting cavity respectively, the two ends of a motor shaft of the driving motor are supported on the shared shell through bearings respectively, and one end of the motor shaft extends into the speed reducer mounting cavity to form a cantilever end; the cantilever end is provided with a driving bevel gear which is meshed with a driven bevel gear on the intermediate shaft of the speed reducer.

The invention discloses a drive-by-wire chassis device and a vehicle, the drive-by-wire chassis device comprises a driving assembly and a suspension assembly, the suspension assembly comprises a supporting arm, and the supporting arm comprises a first supporting part and a second supporting part; a mounting table is arranged on the upper surface of the second supporting part; the swinging arm comprises an annular piece and a rotary connecting part arranged at the end part of the annular piece; the peripheral wall of the annular piece is hinged to the first supporting arm through a hinge structure, and the rotary connecting part is connected with an integrated axle housing on the driving assembly; the lifting mechanism is configured to be capable of actively adjusting the length of the lifting mechanism so as to change the position of the swing arm relative to the supporting arm. According to the scheme, the annular piece and the rotation connecting part are arranged on the swing arm, so that the effect of separating the force bearing point of the suspension from the rotation driving function is achieved. In addition, according to the scheme, the lifting mechanism capable of actively adjusting the length is connected between the supporting arm and the swing arm, and the effect of actively controlling the ground clearance of the chassis and the posture of the vehicle body in real time is achieved.

The present invention relates to a wheel assembly comprising a rim mounting seat (1) and a drive shaft (2) connected coaxially, a support (3) having a first mounting hole, a bearing (4), a first and a second sealing element (5, 6), at least a portion of the drive shaft and the rim mounting seat being disposed in the first mounting hole; the first and second sealing elements and the bearing are disposed successively along an axial direction of the drive shaft, and the first sealing element and the bearing are press-fitted between an outer peripheral surface of the rim mounting seat and an inner wall surface of the first mounting hole, and the second sealing element is press-fitted between an outer peripheral surface of the drive shaft and the inner wall surface of the first mounting hole. Abbreviated figure: Figure 1

The utility model provides a split type locomotive wheel structure, which relates to the technical field of locomotive wheel structures, and comprises a wheel assembly rod body, one end of the wheel assembly rod body is provided with a quick assembly mechanism, and the quick assembly mechanism is provided with a connecting disc. The wheel assembling rod body and the driving rod body which are originally integrally arranged are changed into split arrangement, and the position fixing disc and the connecting disc are used for limiting the connecting sliding block connected with the connecting disc through the inserting groove and the sliding groove formed in the position fixing disc and the limiting groove. When disassembly and assembly need to be carried out, disassembly and assembly operation can be carried out by rotating the connecting disc, a limiting cover arranged in the reinforcing mechanism and a limiting rod connected with the limiting cover can limit limiting holes formed in the fixing disc, the connecting disc and a connecting sliding block when connection is formed between the fixing disc and the connecting disc, and therefore the fixing disc and the connecting disc can be conveniently disassembled and assembled. Dislocation between the retention disc and the connecting disc is prevented.

The novel double-bearing receiving cup comprises a hub, a steering cup, a receiving cup body, a dog bone and crown teeth, bearing bodies are arranged on the front face and the back face of the steering cup, and inner rings of the two bearing bodies are in interference fit with the outer wall of the receiving cup body. The outer rings of the two bearing bodies are in interference fit with bearing mounting holes in the front face and the back face of the steering cup respectively. The bearing bodies are arranged on the two sides of the steering cup, the radial shaking amount of the hub is lower than that of a single bearing through symmetrical supporting of the double bearings and supporting of the double bearings, the running smoothness of a vehicle can be improved, the coaxial design of the double bearings and the cup connecting bodies is utilized, the small chassis space of a miniature four-wheel drive of 1: 43 and the like is matched, and the steering cup connecting structure is simple in structure and convenient to use. The axial size does not need to be additionally increased during bearing installation, the dog bone is connected with the crown tooth and the clamping groove of the connecting cup body, rigid supporting of the double bearings is matched, continuous power transmission during swing arm vibration is guaranteed, and transmission reliability is improved.

The present invention relates to a drive shaft arrangement (27, 127) for an all-wheel drive electric vehicle (1), comprising a drive shaft (23) arranged to transfer torque a drive shaft joint (32, 132) at least partially enclosing a drive shaft end portion (23a, 123a), wherein the drive shaft joint (32) comprises a housing (31, 131) and a one-way clutch (41a, 141a) provided at an inner portion (33, 133) of said housing (31, 131). The one-way clutch (41a, 141a) being arranged within said inner portion (33, 133) to engage with said drive shaft (23) at a first drive shaft state, in which the drive shaft (23) transfers torque from said drive shaft (23) in a first direction; disengage from said drive shaft (23) at a second drive shaft state, in which the drive shaft (23) is idle or transfers torque in a second direction opposite to the first direction. The present invention also relates to a vehicle (1) comprising said drive shaft arrangement (27, 127).

There is provided a robotic vehicle (100) for operating in a confined space, such as under a floor of a building, for example a house. The robotic vehicle (100) comprises a chassis (102) having a front (F) and a rear (R) defining a longitudinal direction extending between the front (F) and the rear (R), the robotic vehicle (100) for movement in the longitudinal direction. The robotic vehicle (100) further comprises a plurality of first parts (116a, 116b, 16c, 116d) for a respective plurality of release mechanisms (166), the first parts (116a, 16b, 116c, 116d) each connected to the chassis (102) and each release mechanism (166) for securing a respective wheel (160a, 160b, 160c, 160d) to the chassis (102). Each first part (116a, 116b, 116c, 116d) provides a mounting point for the respective wheel 10 (160a, 160b, 160c, 160d) away from the front (F) or the rear (R) of the chassis (102).Each release mechanism (160) is operable by an operator to release the respective wheel (160a, 160b, 160c, 160d) from the chassis (102) for separate removal of the wheels (160a, 60b, 160c, 160d) and the robotic vehicle (100) from the confined space.

A drive line component for a vehicle includes a half shaft including a housing having an axially outwardly facing surface, a wheel hub assembly including a wheel bearing having an axially inwardly facing surface, and a ring extending about the housing. The ring including a radially inwardly projecting flange portion arranged between the axially outwardly facing surface of the half shaft housing and the axially inwardly facing surface of the wheel bearing, a radially outwardly projecting flange portion, and a transition region extending between the radially inwardly projecting flange portion and the radially outwardly projecting flange portion. The transition region includes a first portion extending axially inwardly from the radially inwardly projecting flange portion, a second portion extending at an angle toward the radially outwardly projecting flange portion, and a third portion including a transition between the first portion and the second portion. The transition having a sharp edge.

A hybrid electric vehicle drive axle assembly relates to the field of vehicle drive axles and comprises an engine, a motor and a main speed reducer, the main speed reducer is provided with a main speed reducing mechanism and a differential mechanism which are in transmission connection, and half shafts connected to wheels are arranged on the two sides of the differential mechanism. The main speed reducing mechanism is provided with a first input shaft in transmission connection with an engine and a second input shaft in transmission connection with a motor, the first input shaft and the second input shaft are symmetrically arranged on the two sides of the main speed reducing mechanism, and the arrangement direction of the first input shaft and the arrangement direction of the second input shaft are perpendicular to the half shaft. The engine and the motor are oppositely arranged on the two sides of the main speed reducer, the engine and the motor are connected in parallel through the main speed reducing mechanism, power of the engine and the motor is converged and superposed through the main speed reducing mechanism and then evenly transmitted to the differential mechanism, and therefore the requirement for the bearing capacity of the differential mechanism is lowered; and therefore, the cost and difficulty for transforming a fuel automobile into a hybrid electric vehicle are reduced.

An on-board electronics system of an aerial work platform moves the wheels (2, 3) between a retracted and extended position by pivoting a respective arm (4, 5). The method comprises the following successive steps: a) orienting each wheel tangentially to the pivoting path of the corresponding arm, b) moving the wheel by pivotally actuating the corresponding arm, and c) reorienting the wheel so as to enable another translation of the aerial work platform. The steps are performed in different orders between the wheels (2, 3) so that at any time at least one of the following conditions is complied with: - the brake system of at least one wheel (2, 3) is active, - at least one wheel (2, 3) is rotated by a motorised drive, - the orientation of the wheels (2, 3) relative to one another prevents any translation of the aerial work platform (1) on the ground as a result of gravitational force.

The utility model discloses a centralized electric drive bridge and vehicle, wherein, the centralized electric drive bridge includes axle, motor, first brake component and first speed reducer, and motor, first brake component and first speed reducer are integrated in the radial side of axle, and first brake component exports the braking force to axle through locking the input end or output end of first speed reducer, the utility model discloses the centralized electric drive bridge of the present application, by integrating motor, first brake component and first speed reducer in the radial side of axle, form compact power module, reduce the space occupation, through the input end or output end of locking first speed reducer of first brake component, compared with prior art, can significantly prolong the service life of motor, and, shorten the brake force transmission chain, improve the brake response time, can greatly improve the heavy load, heavy -duty vehicle ramp parking and emergency brake safety.

The present application relates to a kind of floating drive cover, comprising: bridge, with the fixed frame of carrier vehicle, bridge front end is equipped with the contact detection device with on state and off state;Drive cover, including front side, front side is equipped with trigger part corresponding to the contact detection device;Drive cover is connected between bridge by hinged arm, drive cover can be floating relative to the bridge, and when floating occurs, the contact state of the trigger part and the contact detection device changes.The present application also relates to a plate carrier with the above floating drive cover.The drive cover of the above scheme can trigger micro switch at any angle in the direction of vehicle advancement, and realize vehicle shutdown control.

The utility model provides a disconnected type vehicle frame and a mine truck, the disconnected type vehicle frame comprises a front vehicle frame and a rear vehicle frame, a slewing bearing is arranged between the front vehicle frame and the rear vehicle frame, the outer ring of the slewing bearing is fixedly connected to the rear end part of the front vehicle frame, and the inner ring of the slewing bearing is fixedly connected to the front end part of the rear vehicle frame; and the inner ring and the outer ring of the slewing bearing are rotationally connected. Compared with an existing integral frame vehicle, the front frame and the rear frame adopting the slewing bearing can rotate in a small range in the advancing direction, so that an axle can be in better contact with the ground, the driving force of the vehicle is increased, and the cross-country performance of the vehicle is improved; compared with an existing articulated truck that a power assembly and a transfer case are both installed on a front truck, the power assembly of the disconnected truck frame adopting the slewing bearing is installed on the front truck frame, the transfer case is installed on the rear truck frame, the size of a front overhang and a wheel base of the whole truck is small, the length of the whole truck is reduced, applicability is improved, and wide application and popularization prospects are achieved.

The invention relates to a split axle which comprises a left axle tube, a right axle tube, a left disc seat, a right disc seat, bolts, a left half shell and a right half shell of a transmission and a differential mechanism. The transmission is characterized in that the left axle tube and the left disc seat are welded and fixed, the right axle tube and the right disc seat are welded and fixed, a left half shell of the transmission is provided with an outer convex arc surface which is assembled and fixed with an inner concave arc surface of the left disc seat in a matched mode, and a right half shell of the transmission is provided with an outer convex arc surface which is assembled and fixed with an inner concave arc surface of the right disc seat in a matched mode. Outer convex lugs and bolt holes are arranged on the circumferences of the left disc seat and the right disc seat and correspond to each other and are connected, assembled and fixed through bolts, and a sealing part of an outer circle machine shell of a differential mechanism of the transmission is arranged between the left disc seat and the right disc seat. According to the split bridge, the bearing capacity is enhanced through integral connection of iron pieces, the use amount of aluminum materials is reduced, the material cost is reduced, and the service life is prolonged.

The utility model discloses a chassis system and a vehicle. The chassis system comprises an axle. The axle extends in the width direction of the vehicle, the two ends of the axle are suitable for installing wheel structures, at least part of the axle protrudes out of one side in the length direction of the vehicle to form an avoiding space, and the avoiding space is suitable for avoiding a power structure. One side, in the second direction, of the axle protrudes or sinks to form the avoiding space, the arrangement space needed by the power structure can be effectively avoided, sufficient space is provided for arrangement of other parts in a chassis system, the space utilization rate of the chassis system and a vehicle is effectively increased, meanwhile, collision between the axle and the power structure is avoided, and the service life of the vehicle is prolonged. The jumping space of the power structure in the third direction is increased, the service life of the axle and the power structure is prolonged, and the safety and reliability of a chassis system are improved.