CN115285879B - Multi-model lifts, lift modules and battery swap stations for easy wheelbase adjustment - Google Patents

Abstract

The invention provides a multi-vehicle type lifting device, a lifting module and a power exchange station, which are convenient for adjusting wheel tracks, wherein the lifting device comprises a wheel bearing mechanism and a wheel track adjusting mechanism which are arranged on a frame body, the wheel bearing mechanism comprises two groups of roller mechanisms which are arranged in a V shape, and the inclination angle of rollers in the roller mechanisms relative to a horizontal plane can be adjusted; the track adjusting mechanism comprises a driving part and two pushing parts, wherein the driving part is used for driving the two pushing parts to move along the width direction of the vehicle towards the direction away from each other, and the central area of the pushing parts is positioned between the two groups of roller mechanisms. Through setting up the V type structure that angles are adjustable with roller mechanism for the intermediate position of no matter the wheel of any size all is in the intermediate zone of two sets of roller mechanisms, and the central zone of promotion portion is located between two sets of roller mechanisms, guarantees that the wheel atress is even, avoids the wheel to remove the in-process and produces the slope, improves wheel tread regulation precision, improves and trades electric efficiency.

Description

Multi-vehicle lifting device convenient for adjusting wheel track, lifting module and power exchange station

Technical Field

The invention relates to the field of electric vehicle power conversion, in particular to a multi-vehicle lifting device, a lifting module and a power conversion station, which are convenient for adjusting wheel track.

Background

At present, electric vehicles are increasingly popular with consumers, the energy used by the electric vehicles is basically electric energy, the electric vehicles need to be charged after the electric energy is used, and due to the limitations of the existing battery technology and the charging technology, the electric vehicles need to be fully charged for a long time, which is not as simple and rapid as the direct refueling of the fuel vehicles. Therefore, in order to reduce the waiting time of the user, it is an effective means to replace the battery when the electric power of the electric vehicle is rapidly exhausted. In order to facilitate battery replacement for the electric automobile and meet the power replacement requirement of the electric automobile, a power replacement station needs to be built so that the battery pack of the electric automobile can be subjected to power replacement by driving into the power replacement station when power is deficient. The power exchange station is provided with a lifting device for lifting the electric automobile when the electric automobile performs power exchange operation, so that the power exchange equipment can conveniently operate below the electric automobile to perform power exchange operation on the electric automobile.

Because the actual running direction of the electric automobile in the running process is difficult to be completely parallel to the running direction regulated by the power exchange station, the automobile body of the electric automobile parked on the lifting device is inclined, the position of the electric automobile in the width direction of the automobile is not completely corresponding to the power exchange equipment, and the problem of power exchange failure or repeated power exchange operation occurs. In order to solve the technical problem, the track adjusting mechanism in the prior art adjusts the position of the electric automobile in the width direction of the vehicle by pushing the two coaxial wheels to move in the width direction of the vehicle, so that the electric automobile corresponds to the power exchange equipment, and the success rate and the power exchange efficiency of power exchange are improved.

However, the track adjusting mechanism in the prior art is usually installed at a certain fixed position of the lifting device, and when the vehicle is parked on the lifting device, the middle position of the wheel is not necessarily consistent with the position of the pushing part of the track adjusting mechanism for pushing the wheel, that is, the pushing part of the track adjusting mechanism for pushing the wheel cannot always correspond to the center of the wheel, so that the wheel of the vehicle is easily stressed unevenly to generate offset in the pushing process, the vehicle after the track adjustment is not adjusted to a required position, and the power exchanging device cannot be aligned with the vehicle accurately, so that the power exchanging efficiency is low.

Disclosure of Invention

The invention provides a multi-vehicle type lifting device, a lifting module and a power exchange station, which are convenient for adjusting the wheel track, and are mainly characterized in that a wheel track adjusting mechanism for adjusting the wheel track of an electric vehicle in the prior art cannot always apply thrust to the center of the wheel, so that the wheel is stressed unevenly in the pushing process, and the wheel is easy to deviate after the wheel track is adjusted, so that power exchange equipment and the vehicle cannot be accurately aligned, and the power exchange efficiency is low.

The invention solves the technical problems by the following technical scheme:

A multi-vehicle type lifting device for facilitating adjustment of a wheel track, comprising a frame body for carrying wheels of a vehicle at a time of power change, the multi-vehicle type lifting device for facilitating adjustment of a wheel track comprising:

The wheel bearing mechanism is arranged on the frame body and comprises two groups of roller mechanisms which are arranged in a V shape, each group of roller mechanism comprises a plurality of rollers which are sequentially arranged along the width direction of the vehicle, and the inclination angle of the rollers relative to the horizontal plane is adjustable;

The wheel track adjusting mechanism is arranged on the frame body and comprises a driving part and two pushing parts, wherein the driving part is connected with the two pushing parts, and the driving part is used for driving the two pushing parts to move along the width direction of the vehicle in the direction away from each other so as to enable the two pushing parts to respectively abut against one of the two coaxial wheels and push the two coaxial wheels to synchronously move along the width direction of the vehicle;

The central area of the pushing part is positioned between the two groups of roller mechanisms.

In this scheme, because the vehicle of different models probably has the wheel of equidimension, through setting up two sets of roller mechanism angularly adjustable V type structures for the intermediate position of no matter the wheel of any size all is in the intermediate region of two sets of roller mechanism, and the central region of the promotion portion of wheel track adjustment mechanism is located two sets of roller mechanism between, make the promotion portion support the intermediate region of wheel all the time in the in-process that the wheel track was adjusted, guarantee that the wheel atress is even, avoid the wheel to remove the in-process and produce the slope, improve wheel track adjustment precision, guarantee that the vehicle can accurately stop directly over the equipment of changing electricity when changing electricity, reduce the rate of changing electricity failure, improve the efficiency of changing electricity.

Preferably, the center of the pushing part is located on the symmetrical plane of the two sets of roller mechanisms.

In this scheme, above-mentioned setting makes the center of pushing part can aim at the center of wheel more accurately, makes the wheel more even at the thrust that the wheel received in the wheel tread adjustment process, avoids the wheel to remove the in-process and produces the slope, further improves the wheel tread adjustment precision.

Preferably, a first avoiding part is arranged at the position of the pushing part corresponding to the roller mechanism.

In the scheme, the first avoiding part is used for preventing the pushing part from interfering with the roller mechanism in the moving process, so that the pushing part is ensured to be movable and not blocked during track adjustment.

Preferably, the first avoiding portion is an avoiding inclined plane at two sides of the lower portion of the pushing portion.

In this scheme, the first portion of dodging of above-mentioned structure simple structure, easy processing.

Preferably, the axial direction of the roller is perpendicular to the vehicle width direction.

In this scheme, above-mentioned setting makes the running roller can take place to roll when the wheel carries out the track adjustment to reduce the resistance that receives when the wheel removes and the wearing and tearing between running roller and the wheel.

Preferably, the lower end of the roller mechanism is rotatably connected with the frame body, the wheel bearing mechanism further comprises an angle adjusting assembly, and the angle adjusting assembly is arranged between the roller mechanism and the frame body and is used for adjusting the inclination angle of the roller mechanism relative to the horizontal plane.

In this scheme, change the inclination between running roller mechanism and the frame body according to actual demand through angle adjustment subassembly, guarantee the unified angle modulation of going on of a plurality of running rollers in the running roller mechanism to realize the inclination adjustment of running roller, make the running roller can be adapted to the wheel of more sizes, improve regulation precision and efficiency.

Preferably, when the inclination angle of the roller mechanism relative to the horizontal plane is the maximum value, the angle adjusting assembly is at the first limit position, and the pushing part is at a certain distance from the roller mechanism.

In this scheme, when the inclination angle of the roller mechanism relative to the horizontal plane is greater, the distance between the upper ends of the two sets of roller mechanisms in the running direction of the vehicle is closest, and because the pushing part is located between the two sets of roller mechanisms, when the inclination angle of the roller mechanism relative to the horizontal plane is maximum, the distance between the upper ends of the roller mechanisms and the pushing part is closest, and the arrangement is used for ensuring that the pushing part and the roller mechanism do not interfere all the time in the track adjusting process.

Preferably, the angle adjusting assembly comprises a guide sub-assembly and a limit sub-assembly, the guide sub-assembly comprises a guide part and a moving part which are mutually matched, the guide part is arranged on the frame body, and the moving part is in sliding connection or abutting connection with the roller mechanism through a rotating block;

The moving part moves on the frame body along the running direction of the vehicle under the guidance of the guiding part;

the limiting subassembly is used for limiting the relative position of the moving part on the guide part.

In this scheme, through the relative position of limit subassembly adjustment mobile part on the guide part, and then the relative position of control mobile part and running roller mechanism, the linear movement of mobile part converts running roller mechanism to the rotation of running roller mechanism for the frame body for be different angles between running roller mechanism and the frame body, thereby change the inclination of running roller. The moving part can drive the rotating block to synchronously move along the running direction of the vehicle in the process of moving along the running direction of the vehicle, and the rotating block can also rotate relative to the moving part under the action of downward pressure of the roller mechanism, so that the relative position of the rotating block and the roller mechanism is changed, and the angle between the roller mechanism and the frame body is changed.

Preferably, the guiding part is a sliding rail, the sliding rail extends along the running direction of the vehicle, the moving part comprises a first sliding block matched with the sliding rail and a rotating block in sliding connection with the roller mechanism, an inclined surface is arranged at the end part of the first sliding block, which is far away from the frame body, the inclined direction of the inclined surface is in the same direction as the inclined direction of the roller mechanism, a concave groove is formed in the inclined surface, the rotating block is hinged in the groove, and part of the rotating block extends out of the groove and is in sliding connection with the roller mechanism;

Or;

The guide part is a sliding rail, the sliding rail extends along the running direction of the vehicle, the moving part comprises a first sliding block matched with the sliding rail and a rotating block abutted to the roller mechanism, the end part of the first sliding block, which is far away from the frame body, is provided with an inclined plane, the inclined direction of the inclined plane is in the same direction as that of the roller mechanism, a concave groove is formed in the inclined plane, the rotating block is hinged in the groove, and part of the rotating block extends out of the groove and is abutted to the roller mechanism.

In this scheme, the slide rail is used for guiding the direction of movement of first slider, prevents that first slider from producing the skew at the removal in-process, improves the moving accuracy of first slider. The rotating block is hinged with the first sliding block, so that the rotating block can carry out adaptive angle adjustment according to the inclination angle of the roller mechanism, the rotating block and the roller mechanism are guaranteed to be in surface contact all the time, and stable support of the roller assembly is achieved. The groove is formed in the first sliding block, part of the rotating block is hinged to the inside of the groove, the space inside the first sliding block is fully utilized, the size of the moving part in the height direction of the vehicle is shortened, and the structure is more compact.

Preferably, when the angle adjusting assembly is at the first limit position, the rotating block abuts against a first side notch of the groove;

When the inclination angle of the roller mechanism relative to the horizontal plane is the minimum value, the angle adjusting assembly is positioned at a second limit position, and the rotating block is propped against a second side notch of the groove;

The distance between the second side notch of the groove and the roller mechanism in the vehicle running direction is greater than the distance between the first side notch of the groove and the roller mechanism in the vehicle running direction.

In this scheme, the first side notch and the second side notch of recess are used for restricting the rotation scope of turning block, prevent the turning block from excessively rotating, guarantee that the turning block can support running roller mechanism all the time.

Preferably, the frame body comprises a side plate vertically arranged, the limiting sub-assembly comprises an adjusting nut and an adjusting rod, the adjusting nut is fixedly arranged on the side plate, the adjusting rod sequentially penetrates through the adjusting nut and the side plate and then abuts against the moving part, and the adjusting rod is in threaded connection with the adjusting nut.

In this scheme, the removal of drive mobile part through the removal of adjusting the relative curb plate to adjust the contained angle between running roller mechanism and the frame body, adjust pole and adjusting nut threaded connection can avoid mobile part relative guide portion to continue to remove along the ascending removal of its own axis direction to limit the regulation pole to take place when need not running roller mechanism and adjust.

Preferably, the frame body includes a first wheel placement portion and a second wheel placement portion, the first wheel placement portion and the second wheel placement portion are each provided with the wheel carrying mechanism, the first wheel placement portion and the second wheel placement portion are arranged along the vehicle width direction, a gap is formed between the first wheel placement portion and the second wheel placement portion, and two pushing portions are each disposed between two coaxial wheels;

The driving portion is configured to drive the two pushing portions to move in synchronization with each other in the vehicle width direction in the directions of the first wheel placing portion and the second wheel placing portion, respectively.

In this scheme, above-mentioned setting realizes that the promotion portion can promote the wheel from the inboard of two wheels, compares in promoting the wheel from the wheel outside, make full use of the space between two wheels for lifting device's structure is compacter, and the space that occupies is littleer.

Preferably, the track width adjusting mechanism further comprises a rotation symmetry mechanism powered by the driving part, the rotation symmetry mechanism is centrally symmetrical relative to the rotation center of the rotation symmetry mechanism, the rotation symmetry mechanism is arranged on the frame body and is provided with two output ends outputting opposite acting forces, and the two pushing parts are respectively connected with the output ends on the corresponding sides, so that the moving distances of the two pushing parts are the same.

In this scheme, above-mentioned setting can make the wheel track center of the vehicle of different wheel tracks after the wheel track is adjusted unanimous with the center of the equipment of changing electricity when changing electricity to be convenient for change electric equipment and fix a position the equipment of changing electricity to the vehicle of different models, reduce because the vehicle location is inaccurate and lead to changing the number of times of electric failure, improve and change electric efficiency.

Preferably, the track adjusting mechanism further comprises a track adjusting in-place detecting device for detecting whether the two pushing parts synchronously move in place.

In this scheme, can detect the wheel tread regulation state of wheel in real time through wheel tread regulation detection device in place, judge whether the wheel is adjusted in place, if not adjust in place, can report the mistake in time or adjust again.

Preferably, the track width in-place adjusting detection device is an angle sensor, and the angle sensor is arranged at the rotation center of the rotation symmetry mechanism and is used for detecting the rotation angle of the rotation symmetry mechanism.

In the scheme, after the displacement stroke of the pushing part is obtained in advance according to different wheel tracks of different vehicles, the rotation angle of the rotation center of the rotation symmetry mechanism is calculated, and the rotation angle of the rotation symmetry mechanism is detected by adopting an angle sensor so as to judge whether the wheel positions of the vehicles are adjusted in the wheel track direction.

Preferably, the rotationally symmetrical mechanism is disposed between the first wheel placing portion and the second wheel placing portion;

The rotary symmetrical mechanism comprises a first connecting rod, a rotary piece and a second connecting rod which are sequentially connected, the middle part of the rotary piece is a rotation center, and the rotary piece can rotate relative to the frame body along the rotation center of the rotary piece;

the first end of the first connecting rod and the first end of the second connecting rod are respectively hinged to two ends of the rotating piece, and the first connecting rod and the second connecting rod are centrally symmetrical relative to the rotation center of the rotating piece;

The rotary symmetrical mechanism further comprises a first linear guide mechanism and a second linear guide mechanism, the first linear guide mechanism and the second linear guide mechanism are respectively arranged at two ends of the rotating piece, and the first linear guide mechanism and the second linear guide mechanism are centrally symmetrical relative to the rotation center of the rotating piece;

The two pushing parts are respectively a first pushing part and a second pushing part, the first pushing part is arranged on the first linear guide mechanism, the second end of the first connecting rod is hinged to the first pushing part, the second pushing part is arranged on the second linear guide mechanism, and the second end of the second connecting rod is hinged to the second pushing part;

the driving part is connected with and drives the first pushing part or the second pushing part.

In this scheme, can drive first pushing part and second pushing part synchronous movement through rotational symmetry mechanism, not only guarantee the synchronism that first pushing part and second pushing part moved, improved track adjustment accuracy, but also guaranteed track adjustment mechanism's compact structure.

Preferably, the rotating member comprises a rotating shaft and a rotating rod, a first end of the rotating shaft is arranged in the middle of the rotating rod, the rotating shaft penetrates through the frame body and is rotationally connected with the frame body, an angle detection end of the angle sensor is connected with a second end of the rotating shaft, and the angle detection end of the angle sensor and the rotating rod are coaxially and synchronously rotated.

In this scheme, provide a concrete structure of rotating member, drive the rotation of dwang through the rotation of pivot, and then drive the rotation of first connecting rod and second connecting rod. The pivot sets up in the middle part of dwang, realizes the dwang and winds its center rotation, and then guarantees that first connecting rod and second connecting rod turned angle are the same, realizes that first promotion portion and second promotion portion are the same in the ascending removal distance of vehicle width.

Preferably, the first linear guiding mechanism and the second linear guiding mechanism each include a first guide rail, a second guide rail and a second slider, the first guide rail and the second guide rail extend along the vehicle width direction and are parallel to each other and are arranged on two sides of the rotation center of the rotationally symmetrical mechanism, the first guide rail and the second guide rail are respectively provided with the second slider, and the first pushing part and the second pushing part are respectively mounted on the second slider on the corresponding sides.

In the scheme, the first linear guide mechanism and the second linear guide mechanism are simple in structure and good in stability, movement resistance of the pushing part is reduced, and movement of the pushing part is smoother.

Preferably, the first pushing part and the second pushing part each comprise a push plate and a connecting piece, two ends of the connecting piece are respectively connected to the first guide rail and the second slider on the second guide rail on the corresponding sides, the push plate is connected with the connecting piece, the second end of the first connecting rod is hinged to the connecting piece of the first pushing part, and the second end of the second connecting rod is hinged to the connecting piece of the second pushing part.

In this scheme, connect a plurality of second sliders through the connecting piece to can drive a plurality of second sliders synchronous motion simultaneously through the drive connecting piece, only need install the synchronous motion of two pushing parts alone, reduce cost.

Preferably, the first wheel placing part and the second wheel placing part each comprise a mounting frame, the mounting frames are provided with mounting grooves with openings facing upwards, each mounting frame is provided with two groups of roller mechanisms, and the two groups of roller mechanisms are accommodated in the mounting grooves.

In this scheme, set up the mounting groove that is used for holding running roller mechanism on the mounting bracket, can make the vehicle remove the in-process of running roller mechanism in the mounting groove, the wheel can not receive the barrier of running roller, reduces the in-process that the vehicle was gone to running roller mechanism, the impact damage of wheel to running roller, improves running roller mechanism's life.

Preferably, the first pushing part and the second pushing part further comprise a push rod, one end of the push rod is connected to the push plate, and the other end of the push rod is connected to the connecting piece;

The push plate of the first pushing part and the push plate of the second pushing part are positioned above two groups of roller mechanisms in the mounting groove at the corresponding side, and the position of the mounting frame corresponding to the push rod is provided with a second avoiding part for the push rod to pass through.

In this scheme, through set up the push rod between push pedal and connecting piece, effectively prolonged the stroke of first promotion portion and second promotion portion, can adapt to the vehicle of big track model, can avoid first connecting rod and second connecting rod overlength to lead to atress intensity to become low simultaneously, guaranteed that first promotion portion and second promotion portion can stably promote big load vehicle. Meanwhile, the second avoidance part corresponding to the push rod position is arranged on the mounting frame, so that the partial height of the mounting frame in the vehicle height direction can be fully utilized, and the requirement of the wheel tread adjusting mechanism on the lifting device in the vehicle height direction is reduced.

Preferably, the second avoidance part is an avoidance port, the avoidance port is arranged at the upper end of the side wall of the mounting frame, which is close to the rotationally symmetrical mechanism, and the push rod passes through the avoidance port.

In this scheme, the second dodges the portion and adopts dodging mouthful simple structure, easily processing.

Preferably, the driving part is a cylinder.

In this scheme, drive division adopts the cylinder, compares in the pneumatic cylinder and provides corresponding effort, and the effort that the cylinder provided is when the drive division pushes away the wheel to required position, because gaseous compressibility is stronger, consequently, the drive division can not further promote the lateral part of wheel and lead to the wheel to damage this moment.

Preferably, the number of the cylinders is two, the two cylinders are respectively arranged on one side of the first guide rail and one side of the second guide rail of the first linear guide mechanism or one side of the second linear guide mechanism, which are opposite to each other, along the running direction of the vehicle, and the telescopic rods of the two cylinders are connected with the same connecting piece.

In this scheme, drive same promotion portion through two cylinders for the thrust of the cylinder that the connecting piece received is more even, further improves the stability when promotion portion promotes the wheel.

Preferably, the pushing part is provided with a pushing plate, the pushing plate is perpendicular to the horizontal plane, the side surface of the wheel, facing the corresponding side, of the pushing plate is provided with the wheel track adjusting in-place detection device, and the wheel track adjusting in-place detection device is a pressure sensor.

In the scheme, the two wheels are judged to be adjusted in place by comparing the data monitored by the pressure sensor on the pushing part, so that the track adjusting precision is improved.

Preferably, the side of the push plate, which is close to the wheels, is provided with a buffer pad, and the pressure sensor is arranged between the push plate and the buffer pad.

In this scheme, set up the blotter on the push pedal, on the one hand can reduce the damage that the push pedal leads to push pedal, wheel to cause when promoting the wheel, on the other hand also can reduce the damage to pressure sensor, improves pressure sensor's life.

The lifting module comprises the multi-vehicle type lifting device convenient for adjusting the wheel track, the multi-vehicle type lifting device convenient for adjusting the wheel track and the rear lifting device, and the multi-vehicle type lifting device convenient for adjusting the wheel track and the rear lifting device are arranged at intervals along the running direction of the vehicle.

In the scheme, the multi-vehicle type lifting device convenient for adjusting the wheel track is a front lifting device used for lifting the front wheels of the vehicle, and a rear lifting device is used for lifting the rear wheels of the vehicle so as to ensure that the whole vehicle can be stably lifted.

A power exchange station comprising a lifting module as described above.

In the scheme, the battery replacement station is used for replacing a battery of the vehicle, and the lifting module is used for lifting the vehicle in the battery replacement operation of the vehicle, so that a space for the battery replacement equipment to perform the battery replacement operation is formed at the bottom of the vehicle.

The invention has the positive progress effects that:

In this scheme, because the vehicle of different models probably has the wheel of equidimension, through setting up two sets of roller mechanism angularly adjustable V type structures for the intermediate position of no matter the wheel of any size all is in the intermediate region of two sets of roller mechanism, and the central region of the promotion portion of wheel track adjustment mechanism is located two sets of roller mechanism between, make the promotion portion support the intermediate region of wheel all the time in the in-process that the wheel track was adjusted, guarantee that the wheel atress is even, avoid the wheel to remove the in-process and produce the slope, improve wheel track adjustment precision, guarantee that the vehicle can accurately stop directly over the equipment of changing electricity when changing electricity, reduce the rate of changing electricity failure, improve the efficiency of changing electricity. The angle adjusting assembly is used for changing the inclination angle between the roller mechanism and the frame body according to actual demands, so that the roller can be suitable for wheels with more sizes, and the adjusting precision and efficiency are improved. The wheel distance adjusting state of the wheels can be detected in real time through the wheel distance adjusting in-place detecting device, whether the wheels are adjusted in place or not is judged, and if the wheels are not adjusted in place, errors can be timely reported or the wheels can be adjusted again.

Drawings

Fig. 1 is a schematic perspective view of a power exchange station according to an embodiment of the invention.

Fig. 2 is a schematic top view of a power exchange station according to an embodiment of the invention.

Fig. 3 is a schematic perspective view of a lifting module according to an embodiment of the invention.

Fig. 4 is a schematic perspective view of a front lifting device according to an embodiment of the invention.

Fig. 5 is a schematic perspective view illustrating an inner portion of a front lifting device according to an embodiment of the invention.

Fig. 6 is a top view of fig. 5.

FIG. 7 is a bottom view of the front lifting device of FIG. 5 at the frame body.

Fig. 8 is a schematic perspective view of a wheel carrying mechanism according to an embodiment of the present invention.

Fig. 9 is a schematic perspective view of a roller mechanism according to an embodiment of the invention.

Fig. 10 is a schematic perspective view of a track width adjusting mechanism according to an embodiment of the invention.

Fig. 11 is a schematic view showing an internal structure of a wheel carrying mechanism according to an embodiment of the present invention.

Fig. 12 is a schematic perspective view of a mounting frame according to an embodiment of the invention.

Fig. 13 is a side view of fig. 9.

Fig. 14 is a schematic perspective view of a first slider according to an embodiment of the invention.

Fig. 15 is a schematic view illustrating an internal structure of a rotationally symmetrical mechanism according to an embodiment of the present invention.

Fig. 16 is a partial enlarged view at a of fig. 15.

Reference numerals illustrate:

The power changing chamber 11, the charging chamber 12, the front lifting device 13, the rear lifting device 14, the frame body 21, the first wheel placing portion 211, the second wheel placing portion 212, the base 22, the lifting mechanism 23, the roller mechanism 3, the roller 31, the roller mounting plate 32, the adjustment plate 33, the driving portion 4, the mounting bracket 5, the mounting groove 51, the side plate 52, the escape opening 53, the rotating mechanism 61, the first ear plate 611, the second ear plate 612, the rotating shaft 613, the guide sub-assembly 62, the slide rail 621, the first slider 622, the first slide 6221, the inclined surface 6222, the groove 6223, the first side notch 6224, the second side groove 6225, the rotating block 623, the limit sub-assembly 63, the adjusting lever 631, the adjusting nut 632, the pushing portion 7, the escape inclined surface 71, the first pushing portion 72, the first push plate 721, the first connecting member 722, the first push rod 723, the second pushing portion 73, the second push plate 731, the second connecting member 732, the second push rod cushion 74, the rotationally symmetrical mechanism 8, the angle sensor 81, the first connecting rod 82, the rotating member 83, the rotating member 834, the second connecting member 834, the second bearing housing 834, the second connecting member 834, the first bearing housing 834, the second guide rail 834, the second connecting rod 831, the bearing housing 834, the second guide rail bearing housing 834, the guide rail 832, the rotating shaft 83, the guide rail mounting plate 834, and the guide rail mounting plate 3, and the rotating arm

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.

[ Example 1]

Embodiment 1 discloses a power exchange station for battery replacement of an electric vehicle as shown in fig. 1 and 2.

As shown in fig. 1 and 2, the power exchange station includes a power exchange chamber 11, a charging chamber 12, and a power exchange device (not shown) to and from the power exchange chamber 11 and the charging chamber 12. The charging chambers 12 are disposed adjacent to the battery exchange chamber 11, and in this embodiment, the number of charging chambers 12 is two, and the charging chambers 12 are disposed on two sides of the battery exchange chamber 11. The battery changing room 11 is used for bearing an electric automobile with a battery pack to be changed, the electric automobile enters and stops at the battery changing room 11, the old battery pack to be charged on the electric automobile is detached by the battery changing equipment, a new battery pack which is fully charged is installed, and the battery changing equipment conveys the old battery on the electric automobile to the charging room 12 for charging after the old battery on the electric automobile is detached. In other alternative embodiments, the number of charging chambers 12 may be one or more, and the positions of the charging chambers 12 and the battery changing chambers 11 may be adjusted according to actual requirements.

Because the battery pack is generally installed on the chassis of the electric automobile, the battery replacement equipment needs to go in and out of the bottom of the electric automobile to realize the battery replacement operation. Therefore, in order to ensure that the bottom of the electric automobile has enough height for the power exchanging equipment to come in and go out, a lifting module for lifting the electric automobile is arranged in the power exchanging chamber 11 of the power exchanging station so as to lift or lower the electric automobile, so that a space for the power exchanging equipment to exchange power is formed at the bottom of the electric automobile.

As shown in fig. 2 and 3, the lift module includes a front lift device 13 and a rear lift device 14, and the front lift device 13 and the rear lift device 14 are disposed at intervals in the vehicle traveling direction (X direction in fig. 2). The front lifting device 13 is used for lifting two front wheels of the electric automobile, and the rear lifting device 14 is used for lifting two rear wheels of the electric automobile. When the front and rear wheels of the electric vehicle are respectively moved onto the front and rear lifting devices 13 and 14, the front and rear lifting devices 13 and 14 lift the electric vehicle at the same time to ensure that the whole electric vehicle can be stably lifted.

As shown in fig. 4, the front lifting device 13 in this embodiment is a multi-vehicle type lifting device that is convenient for adjusting the wheel track, and can implement the wheel track adjustment of electric vehicles of various vehicle types. The wheel track adjustment is to adjust the positions of the two front wheels of the electric vehicle with respect to the battery compartment 11 in the vehicle width direction.

As shown in fig. 4, the front lifting device 13 includes a frame body 21, a base 22, a lifting mechanism 23, and a guide portion 24, the lifting mechanism 23 being connected between the frame body 21 and the base 22. The base 22 is installed in the battery exchange chamber 11, the frame 21 is used for bearing the front wheel of the vehicle during battery exchange, and the lifting mechanism 23 drives the frame 21 to lift in the vehicle height direction (Z direction in the figure), so as to drive the electric vehicle parked on the frame 21 to lift in the vehicle height direction. The guide portion 24 is mounted on the frame body 21, and guides the traveling direction of the electric vehicle, thereby improving the positioning accuracy of the electric vehicle. Wherein the front lifting device 13 shown in fig. 1-3 omits the guide 24.

As shown in fig. 4 and 5, the frame body 21 includes a first wheel placing portion 211, a second wheel placing portion 212, and a mounting frame 5, wherein the first wheel placing portion 211 and the second wheel placing portion 212 are respectively provided with the mounting frame 5 and a wheel carrying mechanism placed in the mounting frame 5, the mounting frame 5 has a mounting groove 51 with an opening facing upwards, the first wheel placing portion 211 and the second wheel placing portion 212 are arranged along the vehicle width direction, a gap is provided between the first wheel placing portion 211 and the second wheel placing portion 212, and the first wheel placing portion 211 and the second wheel placing portion 212 are respectively used for carrying two front wheels of an electric vehicle.

As shown in fig. 4, the number of the guide portions 24 in the present embodiment is two, and they are respectively mounted on both sides of the frame body 21 in the vehicle width direction. Each guide 24 includes a roller 241 and a fixing frame 242, and the roller 241 is connected to the fixing frame 242 and mounted on the frame body 21 through the fixing frame 242, and the roller 241 can rotate along its own axis to reduce friction between the roller 241 and the wheel. The two guide portions 24 are each installed between the two wheel carrying mechanisms, and the two rollers 241 of the two guide portions 24 extend in directions away from each other from one end of the wheel carrying mechanism to one end of the wheel carrying mechanism. The guide portion 24 is used for guiding the electric vehicle to drive to the wheel bearing mechanism, and positioning accuracy is improved.

As shown in fig. 8 and 9, the wheel bearing mechanism includes two sets of roller mechanisms 3 accommodated in the installation groove 51, the two sets of roller mechanisms 3 are V-shaped, each set of roller mechanism 3 includes a plurality of rollers 31 sequentially arranged along the width direction (Y direction in fig. 2) of the vehicle, the inclination angle of the rollers 31 relative to the horizontal plane is adjustable, and as shown in fig. 6, the axial direction of the rollers 31 is perpendicular to the width direction of the vehicle, so that the rollers 31 can roll when the wheel is subjected to wheel tread adjustment, the resistance suffered by the wheel during movement and the abrasion of the rollers 31 and the wheels are reduced, and the service life and user experience of the lifting device are improved.

Specifically, as shown in fig. 8, the two sets of roller mechanisms 3 are completely accommodated in the mounting groove 51, i.e., the highest position of the roller mechanisms 3 is flush with the upper end of the mounting groove 51. Because the rollers 31 of the two sets of roller mechanisms 3 extend from bottom to top in directions away from each other, that is, the rollers 31 incline from bottom to top toward the outer side of the frame body 21, the mounting groove 51 for accommodating the roller mechanisms 3 is formed in the mounting frame 5, so that the wheels are not blocked by the rollers 31 in the process of moving the vehicle to the roller mechanisms 3 in the mounting groove 51, the running of the vehicle is smoother, the impact damage of the wheels to the rollers 31 can be reduced, and the service life of the roller mechanisms 3 is prolonged.

In other alternative embodiments, the roller mechanism 3 may not be completely accommodated in the mounting groove 51, but may be slightly higher than the upper end of the mounting groove 51, which will not be described here.

Each group of roller mechanism 3 further comprises a roller mounting plate 32, a plurality of rollers 31 are rotatably mounted on the roller mounting plate 32, the roller mounting plate 32 plays a role in positioning and supporting the rollers 31, and the rollers 31 can rotate around the axes of the rollers relative to the roller mounting plate 32. The two groups of roller mechanisms 3 are oppositely arranged along the running direction of the vehicle, rollers 31 of the two groups of roller mechanisms 3 extend from bottom to top along the running direction of the vehicle towards directions away from each other, the inclination angles of the rollers 31 in the two groups of roller mechanisms 3 are the same, the projection of the two groups of roller mechanisms 3 on a projection plane is in a V shape, and the projection plane is perpendicular to a horizontal plane and parallel to the running direction of the vehicle. A concave space is formed between the two sets of roller mechanisms 3, when the wheel bearing mechanism bears the wheels, part of the wheels are accommodated in the concave space, and the two sides of the wheels along the running direction of the vehicle are respectively abutted with the outer surfaces of the rollers 31 of the two sets of roller mechanisms 3 so as to limit the front-back movement of the wheels along the running direction of the vehicle.

As shown in fig. 4-7, the front lifting device 13 further includes a track adjusting mechanism provided on the frame body 21. As shown in fig. 4 and 10, the track width adjusting mechanism includes a driving portion 4 and two pushing portions 7, the driving portion 4 is connected to the two pushing portions 7, and the driving portion 4 is configured to drive the two pushing portions 7 to move in a direction away from each other in the vehicle width direction, so that the two pushing portions 7 respectively abut against one of the two coaxial wheels, and push the two coaxial wheels to move synchronously in the vehicle width direction, and a center of the pushing portion 7 is located on a symmetry plane of the two sets of roller mechanisms 3 on the corresponding side.

Specifically, both pushing portions 7 are provided between two coaxial wheels, i.e., both pushing portions 7 are provided at the first wheel placing portion 211 and the second wheel placing portion 212. When the electric automobile is parked on the front lifting device 13, the two pushing parts 7 are located between the two front wheels, and the pushing parts 7 can push the wheels from the inner sides of the two wheels, so that compared with pushing the wheels from the outer sides of the wheels, the space between the two wheels is fully utilized, the lifting device is more compact in structure, and the occupied space is smaller.

The driving part 4 is connected with the pushing parts 7, and is used for driving the two pushing parts 7 to move synchronously along the vehicle width direction towards the directions of the first wheel placing part 211 and the second wheel placing part 212 respectively, and driving the pushing parts 7 to move along the vehicle width direction, so that the pushing parts 7 are abutted with the wheels on the corresponding sides, and the wheels are pushed to move along the vehicle width direction. Since the two sets of roller mechanisms 3 have the same inclination angle and are V-shaped, the center of the pushing portion 7 in the present embodiment is located on the symmetry plane of the two sets of roller mechanisms 3, and the center of the wheel is also located on the symmetry plane of the two sets of roller mechanisms 3, wherein the symmetry plane of the two sets of roller mechanisms 3 is perpendicular to the horizontal plane and parallel to the vehicle width direction. The centers of the pushing parts 7 are aligned with the symmetrical planes of the two groups of roller mechanisms 3, so that the centers of the pushing parts 7 can be aligned with the centers of the wheels more accurately, the forces of the wheels are more uniform, the inclination generated in the moving process of the wheels is avoided, and the track adjusting precision is improved.

Because different types of vehicles possibly have wheels with different sizes, the two groups of roller mechanisms are provided with the V-shaped structure with adjustable angles, the middle positions of the wheels with any size are all in the middle areas of the two groups of roller mechanisms, and the central area of the pushing part of the wheel track adjusting mechanism is positioned between the two groups of roller mechanisms, so that the pushing part always props against the middle area of the wheels in the wheel track adjusting process.

In other alternative embodiments, the central area of the pushing part 7 may be located between the two sets of roller mechanisms 3, where the central area of the pushing part 7 may also refer to a space around the center of the pushing part 7, besides the center of the pushing part 7, where the center of the pushing part 7 is the center of the pushing part 7, and the technician may adjust according to the actual situation, but should ensure that the wheels are stressed uniformly as much as possible during the pushing process by the pushing part 7; the inclination angles of the rollers 31 in the two sets of roller mechanisms 3 can also be different, and the design can be specifically performed according to practical situations, so that the thrust force born by the wheels when the wheel track is adjusted is required to be equal to the force required for rotating the rollers 31, and the description is omitted here.

[ Example 2]

Embodiment 2 discloses another specific implementation manner of the multi-vehicle type lifting device convenient for adjusting the wheel track, and embodiment 2 is based on embodiment 1 and further comprises a first avoiding part, a rotating mechanism and an angle adjusting assembly.

As shown in fig. 4 and 10, a first avoiding portion is provided at a position of the pushing portion 7 corresponding to the roller mechanism 3, and the first avoiding portion is used for preventing the pushing portion 7 from interfering with the roller mechanism 3 during the moving process.

Specifically, as shown in fig. 10, the first avoidance portion in this embodiment is avoidance inclined planes 71 on two sides of the lower portion of the pushing portion 7, as shown in fig. 4, on two sides of the pushing portion 7 along the vehicle running direction, the two avoidance inclined planes 71 extend from bottom to top along the vehicle running direction toward directions away from each other, that is, the inclination directions of the avoidance inclined planes 71 correspond to the inclination directions of the roller mechanism 3, so as to reduce the possibility of interference between the pushing portion 7 and the roller mechanism 3. In this embodiment, the avoidance slope 71 is directly processed on the pushing portion 7 to form a first avoidance portion, which has a simple structure and is easy to process.

As shown in fig. 11, the lower end of the roller mechanism 3 is rotatably connected with the mounting frame 5 of the frame body 21 through a rotation mechanism 61, and the wheel bearing mechanism further includes an angle adjusting assembly disposed between the roller mechanism 3 and the mounting frame 5 of the frame body 21 for adjusting the inclination angle of the roller mechanism 3 relative to the horizontal plane.

The angle adjusting component can change the included angle between the roller mechanism 3 and the frame body 21 according to actual requirements, so that the inclination angle of the roller 31 is adjusted, and the roller 31 can be suitable for wheels with more sizes.

Specifically, as shown in fig. 11-13, the rotating mechanism 61 includes two first ear plates 611, two second ear plates 612, and a rotating shaft 613, the roller mechanism 3 further includes an adjusting plate 33, the roller mounting plate 32 is detachably fixed on the adjusting plate 33 by bolts, and the adjusting plate 33 is rotatably connected to the mounting frame 5 of the frame 21 by the rotating mechanism 61, so that the roller mounting plate 32 is prevented from being directly hinged to the frame 21. The axes of the plurality of rollers 31 in the roller mechanism 3 are parallel to each other and perpendicular to the rotation axis of the rotation mechanism 61. The two first ear plates 611 are mounted on the adjustment plate 33 at one end of the adjustment plate 33 near the bottom of the mounting groove 51 (the lower end of the adjustment plate 33 in fig. 13), and the two first ear plates 611 are respectively located at both ends of the adjustment plate 33 in the vehicle width direction (the left and right ends of the adjustment plate 33 in fig. 9). The two sets of second lugs 612 are mounted on the bottom of the mounting groove 51 and are respectively corresponding to the two first lugs 611, and the first lugs 611 are rotatably connected with the two corresponding second lugs 612 of the same set through the rotating shaft 613, so that the structure can provide stable support for the roller mechanism 3.

In other alternative embodiments, each set of the second ear plates 612 may have only one second ear plate 612, so long as the first ear plate 611 is rotatably connected to the second ear plate 612 at the corresponding position through the rotation shaft 613; if the adjusting plate 33 is not provided in the present embodiment, the first ear plate 611 is provided at an end of the roller mounting plate 32 near the bottom of the mounting groove 51, which can also achieve the effect of rotating the roller mechanism 3 relative to the frame 21, which is not described herein.

Since the distance between the upper ends of the two sets of roller mechanisms 3 in the vehicle traveling direction is shorter as the inclination angle of the roller mechanism 3 with respect to the horizontal plane is larger, the distance between the upper ends of the roller mechanisms 3 and the pushing portion 7 is shorter as the inclination angle of the roller mechanism 3 with respect to the horizontal plane is largest because the pushing portion 7 is located between the two sets of roller mechanisms 3, and interference is more likely to occur between the upper ends of the roller mechanisms 3 and the pushing portion 7. In the present embodiment, when the inclination angle of the roller mechanism 3 with respect to the horizontal plane is the maximum, the angle adjustment assembly is in the first limit position, and the pushing portion 7 is located at a certain distance from the roller mechanism 3, so as to ensure that the pushing portion 7 and the roller mechanism 3 do not interfere at all times.

[ Example 3]

Embodiment 3 discloses another specific embodiment of a multi-vehicle type lifting device convenient for adjusting the wheel track, and the specific structure of the angle adjusting assembly is further optimized on the basis of embodiment 3 and embodiment 2.

As shown in fig. 11 and 13, the angle adjusting assembly includes a guiding subassembly 62 and a limiting subassembly 63, the guiding subassembly 62 includes a moving part and a guiding part that are mutually adapted, the guiding part is disposed on the frame body 21, and the moving part is slidably connected with the roller mechanism 3 through a rotating block 623. The moving portion moves on the frame body 21 in the vehicle traveling direction under the guidance of the guide portion. The stop subassembly 63 is used to define the relative position of the moving part on the guide. The sliding connection between the moving part and the roller mechanism 3 means that the moving part and the roller mechanism 3 can slide relatively, but the moving part and the roller mechanism 3 cannot be separated from each other when sliding relatively.

In this embodiment, the moving part drives the rotating block 623 to move synchronously along the vehicle running direction during the movement along the vehicle running direction, and the rotating block 623 also rotates relative to the moving part under the downward pressure of the roller mechanism 3, so that the relative positions of the rotating block 623 and the roller mechanism 3 are changed, and the angle between the roller mechanism 3 and the frame 21 is changed.

Specifically, as shown in fig. 11 and 13, the guiding portion is a sliding rail 621, the sliding rail 621 extends along the running direction of the vehicle, and the moving portion includes a first slider 622 that is adapted to the sliding rail 621 and a rotating block 623 that is slidably connected to the adjusting plate 33 below the roller mechanism 3. The bottom of the first slider 622 has a first sliding groove 6221, and the first slider 622 slides in cooperation with the first sliding rail 621 through the first sliding groove 6221. The end of the first slider 622 away from the frame 21 is provided with a bevel 6222, the bevel 6222 is inclined in the same direction as the bevel of the roller mechanism 3, in this embodiment, the same direction of the bevel 6222 and the bevel of the roller mechanism 3 means that the bevel 6222 is in the same direction as the bevel of the roller mechanism 3, and does not represent the same angle of inclination. The inclined surface 6222 is provided with a concave groove 6223 which is concave downwards, a rotating block 623 is hinged in the groove 6223, and part of the rotating block 623 extends out of the groove 6223 and is connected with the roller mechanism 3 in a sliding way.

The sliding rail 621 is used for guiding the moving direction of the first sliding block 622, preventing the first sliding block 622 from shifting during moving, the first sliding block 622 can drive the rotating block 623 to synchronously move along the vehicle moving direction during moving along the vehicle moving direction, and the rotating block 623 can also rotate relative to the first sliding block 622 under the downward pressure of the roller mechanism 3, so that the relative positions of the rotating block 623 and the roller mechanism 3 are changed, and the angle between the roller mechanism 3 and the frame 21 is changed. The rotating block 623 is hinged to the first slider 622, so that the rotating block 623 can perform adaptive angle adjustment according to the inclination angle of the roller mechanism 3, and the rotating block 623 and the roller mechanism 3 are guaranteed to be always in a surface contact state, so that the rotating block 623 can provide stable support for the roller mechanism 3. The groove 6223 is provided on the first slider 622, and a part of the rotation block 623 is hinged inside the groove 6223, so that the space inside the first slider 622 is fully utilized, the dimension of the moving portion in the height direction of the vehicle is shortened, and the overall structure is more compact.

In this embodiment, the surface of the rotating block 623 facing the roller mechanism 3 is a plane, the surface of the adjusting plate 33 facing the rotating block 623 is also a plane, the rotating block 623 and the adjusting plate 33 slide in direct contact with each other, the first slider 622 plays a certain limiting role on the rotating block 623, movement of the rotating block 623 in the vehicle width direction is prevented, and the possibility of occurrence of offset when the rotating block 623 and the roller mechanism 3 slide relatively is reduced.

In other alternative embodiments, a guiding mechanism may be disposed between the rotating block 623 and the roller mechanism 3 to guide the sliding direction of the rotating block 623 relative to the roller mechanism 3, so as to further reduce the possibility of offset generated when the rotating block 623 slides relative to the roller mechanism 3, where the guiding mechanism may be a linear guiding mechanism such as a sliding rail slider, a rack and pinion, or the like; the rotating block 623 and the roller mechanism 3 may not be in sliding connection, and the rotating block 623 and the roller mechanism 3 may simply abut against each other, i.e., a portion of the rotating block 623 protrudes out of the groove 6223 and abuts against the roller mechanism 3, which is not described herein.

As shown in fig. 13 and 14, when the angle adjustment assembly is in the first extreme position, the rotational block 623 abuts the first side notch 6224 of the recess 6223 (the right side notch of the recess 6223 in fig. 14). When the inclination angle of the roller mechanism 3 with respect to the horizontal plane is at a minimum, the angle adjustment assembly is in the second extreme position, and the rotating block 623 abuts against the second side slot 6225 of the recess 6223 (the left side slot of the recess 6223 in fig. 14). Wherein, the distance between the second side notch 6225 of the groove 6223 and the roller mechanism 3 in the vehicle running direction is larger than the distance between the first side notch 6224 of the groove 6223 and the roller mechanism 3 in the vehicle running direction. The first side notch 6224 and the second side notch 6225 of the groove 6223 serve to limit the rotation range of the rotation block 623, prevent the rotation block 623 from rotating excessively, and ensure that the rotation block 623 can be always connected to the roller mechanism 3.

As shown in fig. 11, the frame body 21 includes a vertically disposed side plate 52, the side plate 52 is a side wall of the mounting frame 5 corresponding to the mounting groove 51, the limiting subassembly 63 includes an adjusting nut 632 and an adjusting rod 631, the adjusting nut 632 is fixedly disposed on the side plate 52, and the adjusting rod 631 sequentially passes through the adjusting nut 632 and the side plate 52 to abut against the first slider 622, and applies a force along the running direction of the vehicle to the first slider 622. The adjusting rod 631 is screwed with the adjusting nut 632. In this embodiment, the first slider 622 is driven to move by moving the adjusting rod 631 relative to the side plate 52, so as to adjust the included angle between the roller mechanism 3 and the frame 21, and the threaded connection between the adjusting rod 631 and the adjusting nut 632 can limit the movement of the adjusting rod 631 along the axis direction of the adjusting rod 631 when the adjustment of the roller mechanism 3 is not required, so as to avoid the first slider 622 from moving continuously relative to the first sliding rail 621.

Specifically, the side plate 52 has a through hole, the adjusting nut 632 is fixed to the side plate 52, and the adjusting nut 632 is coaxially disposed with the through hole of the side plate 52. The adjusting lever 631 in this embodiment is a bolt, and the adjusting lever 631 is screwed to the side plate 52 by an adjusting nut 632. During adjustment, by rotating the adjusting lever 631, the adjusting lever 631 moves axially relative to the adjusting nut 632, and further drives the first slider 622 to move on the first sliding rail 621. In this embodiment, the adjusting nut 632 is disposed on the side plate 52, so as to avoid machining the threaded hole on the side plate 52, and reduce the production cost.

In this embodiment, the two sets of angle adjusting components corresponding to each set of roller mechanism 3 include two guiding subassemblies 62 and two limiting subassemblies 63, and the two guiding subassemblies 62 and the two limiting subassemblies 63 are disposed at two ends of the roller mechanism 3 along the width direction of the vehicle, so as to improve the supporting effect on the roller mechanism 3 and ensure that the roller mechanism 3 is stressed uniformly when performing angle adjustment.

In other alternative embodiments, the number of the angle adjusting components may be one or more, and the number and the positions of the angle adjusting components are adjusted according to the actual requirements and the stress condition of the roller mechanism 3, which is not described herein.

The principle of the angle adjustment of the roller mechanism 3 will be described below in terms of the specific structure of the angle adjustment assembly described above.

When the inclination angle of the roller mechanism 3 needs to be enlarged, the adjustment lever 631 is driven to move toward the inside of the installation groove 51 in the vehicle traveling direction, the adjustment lever 631 pushes the first slider 622 to move toward the inside of the installation groove 51 in the vehicle traveling direction, and the first slider 622 pushes the roller mechanism 3 to rotate upward to increase the inclination angle of the roller mechanism 3.

When the inclination angle of the roller mechanism 3 needs to be reduced, the adjusting lever 631 is driven to move outside the mounting groove 51 in the vehicle traveling direction, the adjusting lever 631 is separated from the first slider 622, the first slider 622 is not supported by the adjusting lever 631, the limiting effect on the roller mechanism 3 is limited, the roller mechanism 3 falls under the influence of gravity, and the first slider 622 is driven to move outside the mounting groove 51 in the vehicle traveling direction until the first slider 622 is abutted against the adjusting lever 631.

[ Example 4]

Embodiment 4 discloses another specific implementation mode of the multi-vehicle type lifting device convenient for adjusting the wheel track, embodiment 4 is based on any one embodiment of embodiments 1 to 3, and embodiment 4 is different in that, as shown in fig. 5, 6 and 10, the wheel track adjusting mechanism of embodiment 4 further comprises a rotation symmetrical mechanism 8 powered by the driving part 4, the rotation symmetrical mechanism 8 is symmetrical relative to the rotation center of the rotation symmetrical mechanism 8, the rotation symmetrical mechanism 8 is arranged on the frame body 21, the rotation symmetrical mechanism 8 is provided with two output ends outputting opposite acting forces, and the two pushing parts 7 are respectively connected with the output ends of the corresponding sides, so that the moving distance of the two pushing parts 7 is the same, and the center of the wheel track of vehicles with different wheel tracks after the wheel track adjustment is consistent with the center of the electricity changing equipment during electricity changing.

Specifically, as shown in fig. 4 and 6, the rotationally symmetrical mechanism 8 is provided between the first wheel placing portion 211 and the second wheel placing portion 212, and is provided on the frame body 21. The frame body 21 is provided with an upward-opening accommodating groove, the accommodating groove is positioned between the first wheel accommodating part 211 and the second wheel accommodating part 212 and is used for accommodating the rotationally symmetrical mechanism 8 and the driving part 4, one end of the pushing part 7 extends into the accommodating groove to be connected with the rotationally symmetrical mechanism 8, and the other end of the pushing part 7 is positioned outside the accommodating groove and extends into the upper parts of the two groups of roller mechanisms 3 on the corresponding sides and is used for being abutted with wheels during wheel track adjustment. The upper side of holding tank still has the apron, and the apron is used for sheltering from the opening of holding tank top to avoid impurity such as dust to pass through the inside that gets into rotational symmetry mechanism 8, guarantee rotational symmetry mechanism 8's normal operating, improve dustproof effect.

As shown in fig. 10, the rotationally symmetrical mechanism 8 includes a first link 82, a rotating member 83, and a second link 84 that are sequentially connected, the middle portion of the rotating member 83 being a rotation center, and the rotating member 83 being rotatable relative to the frame body 21 along its rotation center. A first end of the first link 82 (right end of the first link 82 in the drawing) and a first end of the second link 84 (left end of the second link 84 in fig. 6) are respectively hinged to both ends of the rotating member 83, and the first link 82 and the second link 84 are center-symmetrical with respect to a rotation center of the rotating member 83.

The rotationally symmetrical mechanism 8 further includes a first linear guide mechanism and a second linear guide mechanism, which are provided at both ends of the rotary member 83, respectively, and are center-symmetrical with respect to the rotation center of the rotary member 83. The two pushing parts 7 are a first pushing part 72 and a second pushing part 73 respectively, the first pushing part 72 is arranged on the first linear guiding mechanism, the second end of the first connecting rod 82 is hinged to the first pushing part 72, the second pushing part 73 is arranged on the second linear guiding mechanism, and the second end of the second connecting rod 84 is hinged to the second pushing part 73.

As shown in fig. 10, the power output end of the driving portion 4 is connected to the first pushing portion 72 for driving the first pushing portion 72 to move in the vehicle width direction, and the second pushing portion 73 can simultaneously move reversely in the vehicle traveling direction by the rotationally symmetrical mechanism 8. In this embodiment, the rotation symmetry mechanism 8 can drive the first pushing portion 72 and the second pushing portion 73 to move synchronously by using only one driving portion 4, so that the synchronicity of the movement of the first pushing portion 72 and the second pushing portion 73 is ensured. In the present embodiment, the driving section 4 is a cylinder.

In other alternative embodiments, the driving portion 4 may be connected to the second pushing portion 73 for driving the second pushing portion 73 to move in the vehicle width direction, in which case the first pushing portion 72 can simultaneously move in the vehicle traveling direction in the opposite direction by the rotationally symmetrical mechanism 8.

As shown in fig. 7, 15 and 16, the track adjusting mechanism further includes track adjusting in-place detecting means for detecting whether the two pushing portions 7 are moved in place in synchronization. According to the embodiment, the wheel distance adjusting state of the wheels can be detected in real time through the wheel distance adjusting in-place detecting device, whether the wheels are adjusted in place or not is judged, and if the wheels are not adjusted in place, errors can be timely reported or the wheels can be adjusted again.

Specifically, as shown in fig. 15, the track width adjustment in-place detecting device in the present embodiment is an angle sensor 81, and the angle sensor 81 is provided at the rotation center of the rotationally symmetrical mechanism 8 for detecting the rotation angle of the rotationally symmetrical mechanism 8. After the displacement stroke of the pushing part 7 is obtained in advance according to different wheel tracks of different vehicles, the rotation angle of the rotation center of the rotation symmetry mechanism 8 is calculated, and the rotation angle of the rotation symmetry mechanism 8 is detected by adopting the angle sensor 81 to judge whether the wheel position of the vehicle is adjusted in the wheel track direction.

Specifically, as shown in fig. 10, 15 and 16, the rotating member 83 includes a rotating shaft 831 and a rotating lever 832, a first end of the rotating shaft 831 is disposed in a middle portion of the rotating lever 832, the rotating shaft 831 passes through the frame body 21 and is rotatably connected with the frame body 21, an angle detecting end of the angle sensor 81 is connected with a second end of the rotating shaft 831, and both the angle detecting end of the angle sensor 81 and the rotating lever 832 are coaxially and synchronously rotated with the rotating shaft 831. The rotation of the rotating shaft 831 drives the rotating rod 832 to rotate, thereby driving the first link 82 and the second link 84 to rotate. The rotation shaft 831 is disposed in the middle of the rotation lever 832, so as to realize rotation of the rotation lever 832 about the center thereof, thereby ensuring that the rotation angles of the first link 82 and the second link 84 are the same, and realizing the same moving distance of the first pushing portion 72 and the second pushing portion 73 in the vehicle width direction.

As shown in fig. 16, the rotating member 83 further includes a bearing 833, a bearing seat 834 and a support plate 835, the rotating shaft 831 is rotatably connected to the frame body 21 through the bearing 833, specifically, the bearing 833 is disposed in the bearing seat 834, the bearing seat 834 is connected to the support plate 835, and the support plate 835 is mounted on the frame body 21. This structure reduces the coefficient of friction of pivot 831 in the rotation process, avoids the wearing and tearing of pivot 831 to influence wheel tread adjustment mechanism's normal use simultaneously, is convenient for install rotatory symmetry mechanism 8 simultaneously.

As shown in fig. 6 and 10, the first linear guide mechanism and the second linear guide mechanism each include a first rail 91, a second rail 92, and a second slider 93, the first rail 91 and the second rail 92 extend in the vehicle width direction and are disposed parallel to each other on both sides of the rotation center of the rotationally symmetrical mechanism 8, the first rail 91 and the second rail 92 are provided with the second slider 93, respectively, and the first pushing portion 72 and the second pushing portion 73 are mounted on the second slider 93 on the corresponding sides, respectively.

Specifically, as shown in fig. 6, a first rail 91 and a second rail 92 are fixed to the frame body 21, the first rail 91 and the second rail 92 are disposed at intervals in the vehicle traveling direction, a second slider 93 is mounted on each of the first rail 91 and the second rail 92, and the second sliders 93 on both rails are connected to the pushing portions 7 on the corresponding sides.

As shown in fig. 10, the first pushing part 72 and the second pushing part 73 each include a push plate and a connecting piece connected to each other, the driving part 4 is connected to the connecting piece of the first pushing part 72, both ends of the connecting piece are respectively connected to the first rail 91 and the second slider 93 on the second rail 92 on the corresponding side, the second end of the first link 82 (the left end of the first link 82 in fig. 6) is hinged to the connecting piece of the first pushing part 72, and the second end of the second link 84 (the right end of the first link 82 in fig. 6) is hinged to the connecting piece of the second pushing part 73.

In other alternative embodiments, the driving part 4 may also be connected to a connecting member of the second pushing part 73, which will not be described here.

Specifically, as shown in fig. 6, the first pushing portion 72 includes a first push plate 721 and a first link 722, and the second pushing portion 73 includes a second push plate 731 and a second link 732. The two ends of the first connecting piece 722 are respectively connected to the second sliding blocks 93 on the first guide rail 91 and the second guide rail 92 on the corresponding sides, the first connecting piece 722 is connected with the first pushing plate 721, the movement of the first pushing plate 721 is driven by the movement of the first connecting piece 722, and the driving part 4 is connected to the first connecting piece 722 of the first pushing part 72. The two ends of the second connecting piece 732 are respectively connected to the second sliding blocks 93 on the first guide rail 91 and the second guide rail 92 on the corresponding sides, the second connecting piece 732 is connected with the second push plate 731, and the movement of the second push plate 731 is driven by the movement of the second connecting piece 732.

As shown in fig. 5, 10 and 12, the first pushing part 72 and the second pushing part 73 further include a push rod, one end of which is connected to the push plate, and the other end of which is connected to the connecting member. The push plates of the first pushing part 72 and the second pushing part 73 are located above two groups of roller mechanisms 3 in the mounting groove 51 on the corresponding sides, and the second avoiding part for the push rod to pass through is arranged at the position of the mounting frame 5 corresponding to the push rod, so that the travel of the first pushing part 72 and the second pushing part 73 is effectively prolonged, the large-track type vehicle can be adapted, meanwhile, the situation that the stress intensity is lowered due to overlong first connecting rods 82 and second connecting rods 84 can be avoided, and the first pushing part 72 and the second pushing part 73 can stably push the large-load vehicle is ensured.

Specifically, as shown in fig. 5, 10 and 12, the push rod is an elongated flat plate structure extending in the vehicle width direction. The first pusher 72 includes a first push rod 723, the first push rod 723 being connected between the first push plate 721 and the first connector 722. The second pushing part 73 includes a second push rod 733, and the second push rod 733 is connected between the second push plate 731 and the second link 732. The second dodges the portion and dodges the mouth 53, dodges the mouth 53 and sets up and be close to the lateral wall upper end of rotational symmetry mechanism 8 at mounting bracket 5, and first push rod 723, second push rod 733 pass the mouth 53 of dodging of corresponding department. The second avoidance port 53 can avoid interference between the push rod and the mounting frame 5, and the avoidance port 53 vacates a part of vertical space for the push rod, so that the size of the front lifting device 13 in the vehicle height direction can be reduced.

The upper end of the avoiding port 53 in this embodiment is of an open structure, simple in structure, easy to process, convenient to install, capable of being installed on the frame body 21 after all the pushing portions 7 are assembled, capable of enabling the push rod to be located above the avoiding port 53, capable of being partially contained in the avoiding port 53 or completely contained in the avoiding port 53, and capable of improving installation flexibility.

In other alternative embodiments, the relief opening 53 may be designed as a closed opening penetrating only along both ends in the vehicle width direction, in which case it is necessary to first pass the push rod through the relief opening 53 and then assemble the push plate and the connecting member.

In other alternative embodiments, the driving part 4 may also take other structures, such as a hydraulic cylinder, which can fulfill the above-mentioned functions.

In order to make the stress of the first connecting member 722 more uniform, as shown in fig. 6, the number of the cylinders in the present embodiment is two, and the two cylinders are respectively disposed on opposite sides of the first rail 91 and the second rail 92 of the first linear guide mechanism along the running direction of the vehicle, and the telescopic rods of the two cylinders are respectively connected to the side portions of the two ends of the first connecting member 722 along the length direction of the vehicle (i.e., the side portions of the upper and lower ends of the first connecting member 722 in fig. 6). Specifically, in the vehicle traveling direction, one cylinder is provided on the side of the first rail 91 away from the second rail 92, and the other cylinder is provided on the first side of the second rail 92 away from the first rail 91, so as to avoid interference with the rotationally symmetrical mechanism 8. The two cylinders drive the first connecting piece 722 together to move along the width direction of the vehicle, so that the thrust of the cylinder received by the first connecting piece 722 is more uniform, and the stability of the pushing part 7 when pushing the wheels is improved.

In other alternative embodiments, the air cylinder may be provided on the opposite side of the first rail 91 and the second rail 92 of the second linear guide mechanism. The number of the cylinders can be three, four or even more, and the design can be specifically carried out according to the actual situation, and the position layout of the cylinders should be kept not to interfere with other structures.

The following describes the track adjusting process of the electric automobile according to the track adjusting mechanism.

When front and rear wheels of the electric vehicle correspond to wheel placement positions of the front and rear lifting devices, track parameters of the electric vehicle are obtained in advance according to parked vehicle types, target rotation values of the rotationally symmetrical mechanism 8 are obtained according to the track parameters, and movement distances of the electric vehicle pushed in the vehicle width direction by the first pushing portion 72 and the second pushing portion 73 can be reflected according to rotation angles of the rotationally symmetrical mechanism 8. Wherein, when the rotation symmetry mechanism 8 rotates the target rotation value, the electric automobile is in the centering state. The actual rotation value of the rotationally symmetrical mechanism 8 is detected by the angle sensor, and when the actual rotation value is greater than or equal to the target rotation value, it is confirmed that the wheel track is adjusted in place.

[ Example 5]

The configuration in this embodiment is substantially the same as that in embodiment 4, except that the tread adjustment in-place detecting means in this embodiment is a pressure sensor instead of an angle sensor, and the pressure sensor is disposed at a position different from that of the angle sensor of embodiment 4.

As shown in fig. 5 and 6, the push plate is perpendicular to the horizontal plane, the side face of the push plate facing the wheels on the corresponding side is provided with a wheel track adjusting in-place detecting device, the wheel track adjusting in-place detecting device is a pressure sensor, and the two wheels are judged to be in place by comparing the data monitored by the pressure sensor on the pushing part 7, so that the wheel track adjusting precision is improved. Specifically, the first push plate 721 and the second push plate 731 are both provided with a track adjusting in-place detecting device, and by comparing the data detected by the two track adjusting in-place detecting devices, whether the pressure difference detected by the first push plate 721 and the second push plate 731 is within a preset range is determined to determine whether the track of the vehicle is adjusted in place, where the preset range is determined according to the actual situation and is not limited herein.

As shown in fig. 10, the side of the push plate, which is close to the wheels, is provided with a cushion 74, and the pressure sensor is provided between the push plate and the cushion 74. The buffer cushion 74 is arranged on the push plate, so that damage caused by the push plate, the wheels and the pressure sensor when the push plate pushes the wheels is reduced, and the service life of the pressure sensor is prolonged.

The following describes the track adjusting process of the electric automobile according to the track adjusting mechanism.

When the front and rear wheels of the electric vehicle are correspondingly placed at the wheel placing positions of the front and rear lifters, it is confirmed whether the first pushing part 72 and the second pushing part 73 are in place by detecting whether the difference in the pressure values sensed by the pressure sensors on the first push plate 721 and the second push plate 731 is within a preset range.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the device or component in normal use, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or component in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims (24)

1. A multi-vehicle type lifting device convenient for adjusting a wheel track, comprising a frame body for carrying wheels of a vehicle when changing electricity, characterized in that the multi-vehicle type lifting device convenient for adjusting a wheel track comprises:

The wheel bearing mechanism is arranged on the frame body and comprises two groups of roller mechanisms which are arranged in a V shape, each group of roller mechanism comprises a plurality of rollers which are sequentially arranged along the width direction of the vehicle, and the inclination angle of the rollers relative to the horizontal plane is adjustable;

The wheel track adjusting mechanism is arranged on the frame body and comprises a driving part and two pushing parts, wherein the driving part is connected with the two pushing parts, and the driving part is used for driving the two pushing parts to move along the width direction of the vehicle in the direction away from each other so as to enable the two pushing parts to respectively abut against one of the two coaxial wheels and push the two coaxial wheels to synchronously move along the width direction of the vehicle;

The central area of the pushing part is positioned between the two groups of roller mechanisms;

the axial direction of the roller is perpendicular to the width direction of the vehicle;

the lower end of the roller mechanism is rotationally connected with the frame body, the wheel bearing mechanism further comprises an angle adjusting assembly, and the angle adjusting assembly is arranged between the roller mechanism and the frame body and is used for adjusting the inclination angle of the roller mechanism relative to the horizontal plane;

The angle adjusting assembly comprises a guide sub-assembly and a limiting sub-assembly, the guide sub-assembly comprises a guide part and a moving part which are mutually matched, the guide part is arranged on the frame body, and the moving part is in sliding connection or butt joint with the roller mechanism through a rotating block;

The moving part moves on the frame body along the running direction of the vehicle under the guidance of the guiding part;

the limiting subassembly is used for limiting the relative position of the moving part on the guide part;

The frame body comprises a side plate which is vertically arranged, the limiting sub-assembly comprises an adjusting nut and an adjusting rod, the adjusting nut is fixedly arranged on the side plate, the adjusting rod sequentially penetrates through the adjusting nut and the side plate and then abuts against the moving part, and the adjusting rod is in threaded connection with the adjusting nut.

2. The multi-vehicle type lifting device for facilitating adjustment of wheel tread according to claim 1, wherein the center of the pushing portion is located on a symmetry plane of the two sets of roller mechanisms.

3. The multi-vehicle type lifting device for facilitating adjustment of wheel tread according to claim 1, wherein the pushing portion is provided with a first avoiding portion at a position corresponding to the roller mechanism.

4. The multi-vehicle type lifting device for facilitating adjustment of wheel tread according to claim 3, wherein the first avoiding portion is an avoiding slope on both sides of a lower portion of the pushing portion.

5. The multi-vehicle type lifting device for facilitating adjustment of a track width as set forth in claim 1, wherein said angle adjusting assembly is in a first limit position when an inclination angle of said roller mechanism with respect to a horizontal plane is a maximum, and said pushing portion is located at a distance from said roller mechanism.

6. The multi-vehicle lifting device convenient for adjusting the wheel track according to claim 5, wherein the guiding part is a sliding rail, the sliding rail extends along the running direction of the vehicle, the moving part comprises a first sliding block matched with the sliding rail and a rotating block in sliding connection with the roller mechanism, the end part of the first sliding block, which is far away from the frame body, is provided with an inclined plane, the inclined direction of the inclined plane is in the same direction as the inclined direction of the roller mechanism, the inclined plane is provided with a concave groove which is downwards concave, the rotating block is hinged in the groove, and part of the rotating block extends out of the groove and is in sliding connection with the roller mechanism;

Or;

The guide part is a sliding rail, the sliding rail extends along the running direction of the vehicle, the moving part comprises a first sliding block matched with the sliding rail and a rotating block abutted to the roller mechanism, the end part of the first sliding block, which is far away from the frame body, is provided with an inclined plane, the inclined direction of the inclined plane is in the same direction as that of the roller mechanism, a concave groove is formed in the inclined plane, the rotating block is hinged in the groove, and part of the rotating block extends out of the groove and is abutted to the roller mechanism.

7. The multiple vehicle lift device for facilitating tread adjustment of claim 6, wherein the rotating block abuts a first side notch of the groove when the angle adjustment assembly is in the first limit position;

When the inclination angle of the roller mechanism relative to the horizontal plane is the minimum value, the angle adjusting assembly is positioned at a second limit position, and the rotating block is propped against a second side notch of the groove;

The distance between the second side notch of the groove and the roller mechanism in the vehicle running direction is greater than the distance between the first side notch of the groove and the roller mechanism in the vehicle running direction.

8. The multi-vehicle type lifting device for facilitating adjustment of a wheel tread according to claim 1, wherein the frame body includes a first wheel placing portion and a second wheel placing portion, the wheel carrying mechanisms are provided on both of the first wheel placing portion and the second wheel placing portion, the first wheel placing portion and the second wheel placing portion are arranged in a vehicle width direction with a gap therebetween, and both of the pushing portions are provided between two coaxial wheels;

The driving portion is configured to drive the two pushing portions to move in synchronization with each other in the vehicle width direction in the directions of the first wheel placing portion and the second wheel placing portion, respectively.

9. The multi-vehicle type lifting device for facilitating adjustment of a wheel tread according to claim 8, wherein the wheel tread adjusting mechanism further comprises a rotational symmetry mechanism powered by the driving portion, the rotational symmetry mechanism being centrally symmetrical with respect to a rotational center thereof, the rotational symmetry mechanism being provided on the frame body, the rotational symmetry mechanism having two output ends outputting opposite forces, the two pushing portions being respectively connected to the output ends of the corresponding sides such that the distances of movement of the two pushing portions are the same.

10. The multi-vehicle type lifting device for facilitating adjustment of a wheel track as claimed in claim 9, wherein said wheel track adjusting mechanism further comprises a wheel track adjusting in-place detecting means for detecting whether or not both of said pushing portions are moved in place in synchronization.

11. The multi-vehicle type lifting device for facilitating adjustment of a wheel tread according to claim 10, wherein the wheel tread adjustment in-place detecting device is an angle sensor provided at a rotation center of the rotationally symmetrical mechanism for detecting a rotation angle of the rotationally symmetrical mechanism.

12. The multi-vehicle type lifting device facilitating adjustment of wheel base of claim 11, wherein the rotationally symmetrical mechanism is disposed between the first wheel placement portion and the second wheel placement portion;

The rotary symmetrical mechanism comprises a first connecting rod, a rotary piece and a second connecting rod which are sequentially connected, the middle part of the rotary piece is a rotation center, and the rotary piece can rotate relative to the frame body along the rotation center of the rotary piece;

the first end of the first connecting rod and the first end of the second connecting rod are respectively hinged to two ends of the rotating piece, and the first connecting rod and the second connecting rod are centrally symmetrical relative to the rotation center of the rotating piece;

The rotary symmetrical mechanism further comprises a first linear guide mechanism and a second linear guide mechanism, the first linear guide mechanism and the second linear guide mechanism are respectively arranged at two ends of the rotating piece, and the first linear guide mechanism and the second linear guide mechanism are centrally symmetrical relative to the rotation center of the rotating piece;

The two pushing parts are respectively a first pushing part and a second pushing part, the first pushing part is arranged on the first linear guide mechanism, the second end of the first connecting rod is hinged to the first pushing part, the second pushing part is arranged on the second linear guide mechanism, and the second end of the second connecting rod is hinged to the second pushing part;

the driving part is connected with and drives the first pushing part or the second pushing part.

13. The multi-vehicle type lifting device for facilitating adjustment of wheel tread according to claim 12, wherein the rotating member comprises a rotating shaft and a rotating rod, a first end of the rotating shaft is arranged in the middle of the rotating rod, the rotating shaft penetrates through the frame body and is rotatably connected with the frame body, an angle detection end of the angle sensor is connected with a second end of the rotating shaft, and the angle detection end of the angle sensor and the rotating rod are coaxially and synchronously rotated with the rotating shaft.

14. The multi-vehicle type lifting device for facilitating adjustment of wheel tread according to claim 12, wherein the first linear guide mechanism and the second linear guide mechanism each comprise a first guide rail, a second guide rail, and a second slider, the first guide rail and the second guide rail extend in a vehicle width direction and are disposed parallel to each other on both sides of a rotation center of the rotationally symmetrical mechanism, the second sliders are provided on the first guide rail and the second guide rail, respectively, and the first pushing portion and the second pushing portion are mounted on the second slider on the corresponding sides, respectively.

15. The multiple vehicle type lifting device for facilitating adjustment of wheel tread according to claim 14, wherein the first pushing portion and the second pushing portion each comprise a push plate and a connecting member, both ends of the connecting member are respectively connected to the first rail and the second slider on the second rail on the corresponding sides, the push plate is connected to the connecting member, the second end of the first connecting rod is hinged to the connecting member of the first pushing portion, and the second end of the second connecting rod is hinged to the connecting member of the second pushing portion.

16. The multi-vehicle lifting device for facilitating adjustment of wheel tracks of claim 15, wherein the first wheel placement portion and the second wheel placement portion each comprise a mounting frame, the mounting frames have mounting grooves with openings facing upwards, two sets of roller mechanisms are mounted on each mounting frame, and the two sets of roller mechanisms are accommodated in the mounting grooves.

17. The multi-vehicle type lifting device for facilitating adjustment of a track width as recited in claim 16, wherein said first pushing portion and said second pushing portion further comprise a push rod, one end of said push rod being connected to said push plate, the other end of said push rod being connected to said connecting member;

The push plate of the first pushing part and the push plate of the second pushing part are positioned above two groups of roller mechanisms in the mounting groove at the corresponding side, and the position of the mounting frame corresponding to the push rod is provided with a second avoiding part for the push rod to pass through.

18. The multi-vehicle lifting device facilitating adjustment of wheel tracks according to claim 17, wherein the second avoidance portion is an avoidance port, the avoidance port is disposed at an upper end of a side wall of the mounting frame near the rotationally symmetrical mechanism, and the push rod passes through the avoidance port.

19. The multi-vehicle lift device that facilitates adjustment of track width of claim 14, wherein the drive is a cylinder.

20. The multi-vehicle type lifting device for facilitating adjustment of wheel tread according to claim 19, wherein the number of the cylinders is two, the two cylinders are respectively arranged on the opposite sides of the first guide rail and the second guide rail of the first linear guide mechanism or the second linear guide mechanism along the running direction of the vehicle, and the telescopic rods of the two cylinders are connected to the same connecting piece.

21. The multi-vehicle type lifting device for facilitating adjustment of wheel tread according to claim 10, wherein the pushing part is provided with a push plate, the push plate is arranged perpendicular to a horizontal plane, the side surface of the push plate facing the wheels on the corresponding side is provided with the wheel tread adjusting in-place detecting device, and the wheel tread adjusting in-place detecting device is a pressure sensor.

22. The multiple vehicle lift device for facilitating track adjustment of claim 21 wherein the side of the push plate adjacent the wheels is provided with a cushion and the pressure sensor is positioned between the push plate and the cushion.

23. A lifting module, characterized in that the lifting module comprises a multi-vehicle type lifting device which is convenient for adjusting the wheel track and is arranged at intervals along the running direction of a vehicle and a rear lifting device which is convenient for adjusting the wheel track, and the multi-vehicle type lifting device which is convenient for adjusting the wheel track and the rear lifting device are arranged at intervals along the running direction of the vehicle.

24. A power plant, characterized in that it comprises a lifting module according to claim 23.