Wheel positioning device and lifting machine

Abstract

The invention provides a wheel positioning device and a lifting machine. The wheel positioning device comprises a driving part and a pushing part, the driving part comprises a driving piece and a connecting rod mechanism, the connecting rod mechanism comprises a first power output end and a second power output end which are symmetrically arranged, the pushing part comprises a first pushing part and a second pushing part, the first pushing part is connected with the first power output end, and the second pushing part is connected with the second power output end; the driving part is used for driving the first pushing part and the second pushing part to synchronously move oppositely in the width direction of the vehicle so as to abut against wheels on the corresponding sides of the vehicle. The linkage mechanism can achieve synchronous driving of the first pushing part and the second pushing part, consistency and collaboration of vehicle wheel track adjustment are guaranteed, only whether the pushing part on one side adjusts the wheels in place or not can be monitored, and the cost of the lifting machine is reduced. Therefore, the two power output ends of the connecting rod mechanism can be controlled to act on the pushing parts on the corresponding sides to abut against the wheels on the corresponding sides only by arranging one driving piece, and the cost of the driving piece is reduced.

Description

Technical Field

[0001] The present invention relates to the field of electric vehicle battery swapping, and particularly to a wheel positioning device and a lift. Background Art

[0002] Nowadays, electric vehicles are becoming increasingly popular among consumers. The energy used by electric vehicles is basically electric energy. After the electric energy of an electric vehicle is used up, it needs to be charged. Due to the limitations of current battery technology and charging technology, it takes a relatively long time to fully charge an electric vehicle, which is not as simple and fast as directly refueling a fuel vehicle. Therefore, in order to reduce the waiting time of users, replacing the battery when the electric energy of the electric vehicle is almost exhausted is an effective means. In order to facilitate the replacement of the battery of an electric vehicle and meet the battery swapping needs of electric vehicles, it is necessary to build a battery swapping station so that when the battery pack of an electric vehicle is out of power, the electric vehicle can drive into the battery swapping station for battery swapping. The battery swapping station is equipped with a lift, which is used to lift the electric vehicle when the electric vehicle is performing a battery swapping operation, so as to facilitate the battery swapping equipment to run under the electric vehicle to perform the battery swapping operation on the electric vehicle.

[0003] Since the actual driving direction of an electric vehicle during driving is difficult to be completely parallel to the driving direction specified by the battery swapping station, the body of the electric vehicle parked on the lift is inclined, and the position of the electric vehicle in the vehicle width direction does not exactly correspond to the battery swapping equipment, resulting in problems such as battery swapping failure or repeated battery swapping operations. To solve the above technical problems, the wheel positioning device in the prior art adjusts the position of the electric vehicle in the vehicle width direction by pushing two coaxial wheels to move in the vehicle width direction, so that it corresponds to the battery swapping equipment, improving the success rate and efficiency of battery swapping.

[0004] In the prior art, the wheel positioning device realizes the wheelbase adjustment of the vehicle by setting two driving mechanisms to act on the push plates on different wheel sides respectively, so as to realize the push plates pushing against the corresponding wheels. However, on the one hand, the cost of setting two driving mechanisms in a lift is relatively high. On the other hand, the way of driving by two driving mechanisms respectively results in poor consistency of wheelbase adjustment, and it is necessary to set two in-place detection devices correspondingly to detect whether the wheels on the corresponding sides are adjusted in place, further increasing the cost. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect that the wheel positioning device in the prior art sets two driving mechanisms to act on different wheels respectively, resulting in a relatively high cost of the lift, and to provide a wheel positioning device and a lift.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] A wheel positioning device is installed on the frame body of a lift, and the wheel positioning device includes a driving part and a pushing part;

[0008] The driving part includes a driving member and a linkage mechanism. The power output end of the driving member is connected to the power input end of the linkage mechanism. The linkage mechanism includes a symmetrically arranged first power output end and a second power output end. The driving member is used to drive the first power output end and the second power output end to approach or move away from each other in the vehicle width direction.

[0009] The pushing part includes a first pushing part and a second pushing part. The first pushing part is connected to the first power output end, and the second pushing part is connected to the second power output end. The driving part is used to drive the first pushing part and the second pushing part to move synchronously away from each other in the vehicle width direction to push against the wheels on the corresponding side of the vehicle.

[0010] In this solution, the wheel positioning device can adjust the distance between the two wheels of the vehicle in its width direction through the first pushing part and the second pushing part according to the wheelbase of different vehicles, so that the vehicle can be parked at a suitable position on the lift, improving the positioning accuracy of the vehicle in the swapping station, facilitating the swapping of the swapping equipment for the vehicle, and improving the success rate and efficiency of the swapping. The linkage mechanism can realize the synchronous driving of the first pushing part and the second pushing part, ensuring that the distances moved by the first pushing part and the second pushing part in the vehicle width direction are the same, guaranteeing the consistency and coordination of the vehicle wheelbase adjustment, and thus improving the accuracy of the wheelbase adjustment. Therefore, only one driving member is needed to control the two power output ends of the linkage mechanism to act on the corresponding pushing parts respectively to push against the wheels on the corresponding sides, reducing the cost of the driving member. In addition, it is possible to judge the adjustment situation of the pushing part on the other side by only monitoring whether the pushing part on one side has adjusted the wheel in place, so that only one in-place detection mechanism for detecting whether the wheel adjustment is in place needs to be set, further reducing the cost of the lift.

[0011] Preferably, the driving member is a linear driving member. The linear driving member includes a piston that can be telescoped in the vehicle width direction. The free end of the piston forms the power output end of the driving member.

[0012] In this solution, the above setting realizes the driving of the linkage mechanism through the telescoping of the piston, with a simple structure and high driving strength.

[0013] Preferably, the linkage mechanism includes a first link and a second link that are cross - arranged and hinged to each other. The power output end of the driving member is hinged to the first link. The first link and the second link rotate relative to the frame body around the axis of the intersection point.

[0014] In this solution, the above settings are used to achieve the linkage between the first link and the second link, so that when the driving member drives the first link to rotate, the second link can rotate synchronously, realizing the adjustment of the entire link mechanism.

[0015] Preferably, the link mechanism further includes a third link, a fourth link, a fifth link, and a sixth link. The third link and the fourth link are disposed on one side of the first link in the vehicle width direction, and the fifth link and the sixth link are disposed on the other side of the first link in the vehicle width direction.

[0016] The first end of the third link is hinged to the first end of the first link, the second end of the third link is hinged to the second end of the fourth link, the first end of the fourth link is hinged to the first end of the second link, and the first pushing portion is connected to the hinge point of the third link and the fourth link.

[0017] The first end of the fifth link is hinged to the second end of the second link, the second end of the fifth link is hinged to the second end of the sixth link, the first end of the sixth link is hinged to the second end of the first link, and the second pushing portion is connected to the hinge point of the fifth link and the sixth link.

[0018] In this solution, the first link and the second link rotate under the driving force of the driving member, thereby causing the third link, the fourth link, the fifth link, and the sixth link hinged to the two to rotate, changing the lengths of the third link, the fourth link, the fifth link, and the sixth link in the vehicle width direction, and further controlling the distances moved by the first pushing portion and the second pushing portion in the vehicle width direction.

[0019] Preferably, the hinged end of the first link and the third link forms the power input end of the link mechanism.

[0020] And / or, the pushing portion includes a push plate and a connecting rod. One end of the connecting rod is connected to the push plate, and the other end of the connecting rod is connected to the link mechanism.

[0021] In this solution, the hinge point of the first link and the third link is used as the connection point between the link mechanism and the driving member, so that the two connections can share one hinge member, simplifying the overall structure of the wheel positioning device. The connecting rod effectively extends the stroke of the pushing portion, can adapt to vehicles of various wheelbase models, and at the same time can prevent the links in the link mechanism from being too long and resulting in a decrease in the force-bearing strength, ensuring that the pushing portion can stably push large-load vehicles.

[0022] Preferably, the driving member further includes a first fixing portion, which is movably connected to the piston. A first connection end is formed at one end of the first fixing portion away from the piston, and the first connection end is hinged to a second connection end of the link mechanism.

[0023] In this solution, the above setting is used to fix the relative positions of the driving member and the link mechanism, preventing the driving member from shifting when the link mechanism moves.

[0024] Preferably, the hinged end of the second link and the fifth link forms the second connection end;

[0025] And / or, the driving portion further includes a driving valve, which is installed on the frame body, and the driving valve is connected to the driving member through a hose.

[0026] In this solution, the hinged point of the second link and the fifth link is used as the connection point of the first fixing portion and the second connection end of the link mechanism, enabling the two connections to share a hinge, thus simplifying the overall structure of the wheel positioning device. The hose reserves space for the driving member to move in the vehicle traveling direction, enabling the driving member to move together with the link mechanism in the vehicle traveling direction and improving the feasibility of the link mechanism to drive the pushing portion to move in the vehicle width direction.

[0027] Preferably, the link mechanism further includes a second fixing portion, which is rotatably connected to the intersection of the first link and the second link, and the second fixing portion is installed on the frame body.

[0028] In this solution, the second fixing portion is used to position and fix the first link and the second link on the frame body, preventing the first link and the second link from generating horizontal displacement during rotation, and further ensuring that the first pushing portion and the second pushing portion can move the same distance in the vehicle width direction, improving the accuracy of wheelbase adjustment.

[0029] Preferably, the second fixing portion includes a fixing member and a rotating shaft. The rotating shaft is fixed on the fixing member and rotatably connected to the fixing member. The rotating shaft passes through the first link and the second link, and both the first link and the second link are rotatably connected to the rotating shaft. The fixing member is installed on the frame body.

[0030] In this solution, the fixing member is used to install the rotating shaft on the frame body. The rotating shaft passes through the first link and the second link. On the one hand, it realizes the rotational connection between the rotating shaft and the first link and the second link. On the other hand, the rotating shaft can also limit the horizontal displacement of the first link and the second link during rotation.

[0031] Preferably, the wheel positioning device further includes a wheel placement portion for supporting the wheel. The wheel placement portion includes a first wheel placement portion and a second wheel placement portion, and the first wheel placement portion and the second wheel placement portion are spaced apart along the vehicle width direction.

[0032] Along the vehicle width direction, the first pushing portion, the driving portion, and the second pushing portion are all located between the first wheel placement portion and the second wheel placement portion. The first wheel placement portion and the first pushing portion are correspondingly arranged, and the second wheel placement portion and the second pushing portion are correspondingly arranged.

[0033] In this solution, the above setting enables the pushing portion to push the wheels from the inner sides of the two wheels. Compared with pushing the wheels from the outer sides of the wheels, the space between the two wheels is fully utilized, making the structure of the lift more compact and occupying less space.

[0034] A lift, the lift includes a frame body and the wheel positioning device as described above.

[0035] In this solution, the lift is used to lift the vehicle during the vehicle battery swapping process to ensure that there is enough space at the bottom of the vehicle for the battery swapping equipment to drive in, thus facilitating the vehicle battery swapping operation.

[0036] The positive and progressive effects of the present invention are as follows: The wheel positioning device can adjust the distance between the two wheels of the vehicle in its width direction through the first pushing portion and the second pushing portion according to the wheelbase of different vehicles, so that the vehicle can be parked at a suitable position on the lift to improve the positioning accuracy of the vehicle in the battery swapping station, facilitate the battery swapping of the battery swapping equipment vehicle, and improve the success rate and efficiency of battery swapping. The link mechanism can achieve synchronous driving of the first pushing portion and the second pushing portion, ensure that the distances moved by the first pushing portion and the second pushing portion in the vehicle width direction are the same, ensure the consistency and coordination of the vehicle wheelbase adjustment, and thus improve the accuracy of wheelbase adjustment. Therefore, only one driving member is needed to control the two power output ends of the link mechanism to act on the corresponding side pushing portions respectively to push the corresponding side wheels, reducing the cost of the driving member. In addition, it is possible to judge the adjustment situation of the pushing portion on the other side by only monitoring whether one side pushing portion adjusts the wheel in place, so that only one in-place detection mechanism for detecting whether the wheel adjustment is in place can be set, further reducing the cost of the lift. Description of the Drawings

[0037] Figure 1 It is a three-dimensional structural schematic diagram of a battery swapping station according to an embodiment of the present invention.

[0038] Figure 2 It is a top view structural schematic diagram inside a battery swapping station according to an embodiment of the present invention.

[0039] Figure 3 Schematic three-dimensional structure diagram of the front lift in an embodiment of the present invention.

[0040] Figure 4 Schematic internal structure diagram of the front lift in an embodiment of the present invention.

[0041] Figure 5 Schematic top view structure diagram of the front lift in an embodiment of the present invention.

[0042] Figure 6 Schematic structure diagram of the cooperation between the driving part and the pushing part in an embodiment of the present invention.

[0043] Figure 7 Schematic three-dimensional structure diagram of the wheel placement part in an embodiment of the present invention.

[0044] Figure 8 Schematic structure diagram of the cooperation between the pushing part and the mounting bracket in an embodiment of the present invention.

[0045] Explanation of reference numerals:

[0046] Battery swapping chamber 11

[0047] Charging chamber 12

[0048] Front lift 131

[0049] Rear lift 132

[0050] Frame body 21

[0051] Base 22

[0052] Lifting mechanism 23

[0053] First wheel placement part 41

[0054] Second wheel placement part 42

[0055] Roller mechanism 43

[0056] Roller unit 431

[0057] Roller 4311

[0058] Mounting bracket 44

[0059] Mounting groove 441

[0060] First pushing part 51

[0061] Second pushing part 52

[0062] Push plate 53

[0063] Connecting rod 54

[0064] Driving part 6

[0065] Driver 61

[0066] Power output end 611 of the driver

[0067] Piston 612

[0068] First fixing part 613

[0069] First connection end 614

[0070] Drive valve 62

[0071] Link mechanism 63

[0072] First power output end 631

[0073] Second power output end 632

[0074] Power input end 633 of the link mechanism

[0075] Second connection end 634

[0076] First connecting rod 651

[0077] Second connecting rod 652

[0078] Third connecting rod 653

[0079] Fourth connecting rod 654

[0080] Fifth connecting rod 655

[0081] Sixth connecting rod 656

[0082] Second fixing part 66

[0083] Fixing piece 661

[0084] First fixing unit 6611

[0085] Second fixing unit 6612

[0086] Rotating shaft 662

[0087] Fixed shaft 663

[0088] Hose 65

[0089] Guide part 7

[0090] First guide part 71

[0091] First guide hole 711

[0092] Second guide part 72

[0093] Second guide hole 721

[0094] Guide rod 73 Detailed implementation manners

[0095] The following is a preferred embodiment, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

[0096] This embodiment discloses a battery swapping station, as Figure 1 and Figure 2 shown, the battery swapping station is used for replacing the battery of an electric vehicle.

[0097] As Figure 1 and Figure 2 shown, the battery swapping station includes a battery swapping chamber 11, a charging chamber 12, and a battery swapping device (not shown in the figure) that shuttles between the battery swapping chamber 11 and the charging chamber 12. The charging chamber 12 is adjacent to the battery swapping chamber 11. In this embodiment, the number of charging chambers 12 is two, which are respectively arranged on both sides of the battery swapping chamber 11. The battery swapping chamber 11 is used to carry an electric vehicle with a battery to be replaced. The electric vehicle drives into and docks at the battery swapping chamber 11. The battery swapping device disassembles the discharged battery to be charged on the electric vehicle and installs a fully charged battery. After the battery swapping device disassembles the discharged battery on the electric vehicle, it transports the discharged battery to the charging chamber 12 for charging. In other alternative embodiments, the number of charging chambers 12 can also be one or more, and the positions of the charging chamber 12 and the battery swapping chamber 11 can also be adjusted according to actual needs.

[0098] Since the battery is generally installed at the chassis position of the electric vehicle, the battery swapping device needs to enter and exit the bottom of the electric vehicle to achieve the battery swapping operation. Therefore, in order to ensure that there is enough height at the bottom of the electric vehicle for the battery swapping device to enter and exit, a lifting module for lifting the electric vehicle is provided in the battery swapping chamber 11 of the battery swapping station to raise or lower the electric vehicle, so as to form a space at the bottom of the electric vehicle for the battery swapping device to perform the battery swapping operation.

[0099] As Figure 2 shown, the lifting module includes a front lifter 131 and a rear lifter 132. The front lifter 131 and the rear lifter 132 are arranged at intervals along the vehicle driving direction ( Figure 2 the X direction in

[0100] As Figure 4 and Figure 5 shown, the front lifter 131 in this embodiment is a lifter provided with a wheel positioning device, which can realize the wheelbase adjustment of the electric vehicle. Among them, the wheelbase adjustment refers to adjusting the two wheels of the electric vehicle on the same axis (two front wheels or two rear wheels) in the vehicle width direction (Figure 2 The position relative to the battery swapping chamber 11 in the Y direction).

[0101] It should be noted that Figure 1 and Figure 2 The structure of the lift shown in Figures 4 - 8 is not exactly the same as the shape of the lift shown in Figure 1 and Figure 2 is only for indicating the position of the lift in the battery swapping station.

[0102] In this embodiment, the wheel alignment device is only provided on the front lift 131. By adjusting the positions of the two front wheels of the electric vehicle, the wheelbase adjustment of the entire electric vehicle can be achieved. In other alternative embodiments, the wheel alignment device can also be provided on the rear lift 132, or the wheel alignment device can be provided on both the front lift 131 and the rear lift 132 to improve the accuracy of the wheelbase adjustment of the electric vehicle.

[0103] Such as Figure 3 and Figure 4 shown, the front lift 131 includes a frame body 21, a base 22, a lifting mechanism 23 and a wheel alignment device. The lifting mechanism 23 is connected between the frame body 21 and the base 22. The base 22 is installed in the battery swapping chamber 11. The frame body 21 is used to carry the wheels of the vehicle during battery swapping. The lifting mechanism 23 drives the frame body 21 to lift and lower in the vehicle height direction ( Figure 1 the Z direction in

[0104] ), thereby driving the electric vehicle parked on the frame body 21 to lift and lower in the vehicle height direction. The wheel alignment device is installed on the frame body 21 of the lift and is used to adjust the position of the electric vehicle in the vehicle width direction, so that the electric vehicle can be accurately parked directly above the battery swapping equipment during battery swapping, reducing the battery swapping failure rate and improving the battery swapping efficiency. Figures 4 - 6 Shown, the wheel alignment device includes a wheel placement part, a pushing part, a driving part 6 and a guiding part 7.

[0105] Such as Figure 4 and Figure 5 shown, the wheel placement part is used to support the wheels of the electric vehicle. The wheel placement part includes a first wheel placement part 41 and a second wheel placement part 42. The first wheel placement part 41 and the second wheel placement part 42 are arranged at intervals in the vehicle width direction. The first wheel placement part 41 and the second wheel placement part 42 are used to respectively carry the two front wheels of the electric vehicle.

[0106] The structures of the first wheel placement part 41 and the second wheel placement part 42 in this embodiment are the same. Taking the first wheel placement part 41 as an example, the specific structures of the first wheel placement part 41 and the second wheel placement part 42 are briefly described below.

[0107] As shown Figure 7 in FIG. 1, the first wheel placement part 41 includes a roller mechanism 43 and a mounting bracket 44. The roller mechanism 43 is disposed inside the mounting bracket 44 and connected to the mounting bracket 44. The roller mechanism 43 includes two sets of roller units 431 arranged in a V shape. The wheels of the electric vehicle are docked on the roller mechanism 43, and the center of the wheel is located on the symmetry plane of the two sets of roller units 431. Each set of roller units 431 includes a plurality of rollers 4311 arranged in sequence in the vehicle width direction. The axial direction of the rollers 4311 is perpendicular to the vehicle width direction, so that the rollers 4311 can roll when the wheel moves in the vehicle width direction, reducing the resistance when the wheel moves and the wear of the rollers 4311 and the wheel, and improving the service life and user experience of the lift.

[0108] Further, as Figure 7 shown in FIG. 2, the roller mechanism 43 is completely accommodated in the mounting groove 441 of the mounting bracket 44, that is, the highest point of the roller mechanism 43 is flush with the upper end of the mounting groove 441 at most. Since the rollers 4311 of the two sets of roller units 431 extend away from each other from bottom to top, that is, the rollers 4311 are inclined outward from the bottom to the top of the frame body 21, so by providing the mounting groove 441 for accommodating the roller mechanism 43 on the mounting bracket 44, when the vehicle moves to the roller mechanism 43 in the mounting groove 441, the wheel will not be blocked by the rollers 4311, making the vehicle run more smoothly, and it can also reduce the impact damage of the wheel on the rollers 4311 and improve the service life of the roller mechanism 43.

[0109] In other alternative embodiments, the roller mechanism 43 may not be completely accommodated in the mounting groove 441, but slightly higher than the upper end of the mounting groove 441.

[0110] As Figures 4 - 6 shown in FIG. 3, the pushing part includes a first pushing part 51 and a second pushing part 52. The first pushing part 51 and the second pushing part 52 are spaced apart in the vehicle width direction. The driving part 6 is connected to the two pushing parts and is used to drive the first pushing part 51 and the second pushing part 52 to move synchronously and away from each other in the vehicle width direction to push the wheels on the corresponding side of the vehicle. Specifically, as Figure 5As shown in the figure, in the vehicle width direction, the first pushing part 51 and the second pushing part 52 are located between the first wheel placement part 41 and the second wheel placement part 42 (that is, the first pushing part 51 and the second pushing part 52 are arranged between two coaxial wheels). The first wheel placement part 41 and the first pushing part 51 are correspondingly arranged, and the second wheel placement part and the second pushing part 52 are correspondingly arranged. When the electric vehicle is parked on the front lift 131, the two pushing parts are located between the two front wheels. The pushing parts can push the wheels from the inner sides of the two wheels. Compared with pushing the wheels from the outer sides of the wheels, the space between the two wheels is fully utilized, making the structure of the lift more compact and occupying less space.

[0111] Further, the center of the pushing part is located on the symmetry plane of the two groups of roller units 431 on the corresponding side, so that the pushing part can push against the center of the wheel on the corresponding side, preventing the wheel from shifting during the process of being pushed by the pushing part and improving the accuracy of wheelbase adjustment. In other alternative embodiments, it is also possible that the central area of the pushing part is located between the two groups of roller units 431. Among them, the central area of the pushing part can refer to a space around the exact center of the pushing part in addition to including the exact center of the pushing part. The exact center of the pushing part is the center of the pushing part mentioned above. Those skilled in the art can make adjustments according to the actual situation, but should ensure as much as possible that the wheels are evenly stressed during the process of being pushed by the pushing part.

[0112] The structures of the first pushing part 51 and the second pushing part 52 in this embodiment are the same. Taking the first pushing part 51 as an example, the specific structures of the first pushing part 51 and the second pushing part 52 will be briefly described below.

[0113] As Figure 5 and Figure 6 shown, the first pushing part 51 includes a push plate 53 and a connecting rod 54. The push plate 53 is arranged in the installation groove 441 of the mounting bracket 44, and the connecting rod 54 is arranged outside the mounting bracket 44. The first end of the connecting rod 54 passes through the mounting bracket 44 and is connected to the push plate 53, and the second end of the connecting rod 54 is connected to the driving part 6. The connecting rod 54 effectively extends the stroke of the pushing part and can adapt to vehicles of various wheelbase models.

[0114] In other alternative embodiments, the first pushing part 51 and the second pushing part 52 can also be in other structural forms as long as the above effects can be achieved.

[0115] The push plate 53 and the connecting rod 54 in this embodiment are detachably connected, and specifically, can be realized by means of threaded connection etc., to facilitate the installation between the two, and the production and processing of a single structure is more convenient.

[0116] Further, as Figure 8As shown, the guiding part 7 is arranged in the mounting groove 441 of the mounting frame 44. The guiding part 7 is connected to the pushing part and is used to guide the pushing part to move in the vehicle width direction. Specifically, the guiding part 7 includes a first guiding member 71, a second guiding member 72 and a guiding rod 73. The first guiding member 71 is fixed to the lower end surface of the push plate 53, and the second guiding member 72 is fixed to the mounting frame 44 and located below the roller mechanism 43. The first guiding member 71 is provided with a first guiding hole 711, and the second guiding member 72 is provided with a second guiding hole 721. The axes of the first guiding hole 711 and the second guiding hole 721 are both parallel to the vehicle width direction, and both ends of the first guiding hole 711 and the second guiding hole 721 penetrate through the corresponding guiding members in the vehicle width direction. Both ends of the guiding rod 73 are respectively inserted into the first guiding hole 711 and the second guiding hole 721. One end of the guiding rod 73 is movably connected to the first guiding member 71, and the other end of the guiding rod 73 is fixedly connected to the second guiding member 72. When the pushing part moves in the vehicle width direction, the first guiding member 71 can move relative to the guiding rod 73 in the vehicle width direction, so as to realize the guiding function of the guiding part 7 on the pushing part.

[0117] Furthermore, in this embodiment, the number of the guiding rods 73 is multiple, and the multiple guiding rods 73 are arranged at intervals in the vehicle traveling direction. Corresponding guiding holes are also provided at corresponding positions of the first guiding member 71 and the second guiding member 72 to realize the connection with the multiple guiding rods 73. In other alternative embodiments, the number of the guiding rods 73 can also be only one.

[0118] As Figure 5 shown, along the vehicle width direction, the driving part 6 is located between the first pushing part 51 and the second pushing part 52. In this embodiment, the first driving member 61 is arranged by making full use of the space between the first pushing part 51 and the second pushing part 52, so that the mechanism of the lift is more compact.

[0119] As Figure 5 and Figure 6 shown, the driving part 6 includes a driving member 61 and a link mechanism 63. The driving member 61 is connected to the link mechanism 63, and the link mechanism 63 is connected to the second end of the connecting rod 54. In this embodiment, the link mechanism 63 is used as a transmission mechanism between the driving member 61 and the pushing part, and is used to transmit the driving force generated by the driving member 61 to the pushing part to control the movement of the pushing part in the vehicle width direction. The pushing part is connected to the link mechanism 63 through the connecting rod 54, which can also avoid the problem that the link in the link mechanism 63 is too long, resulting in a decrease in the force-bearing strength, and ensure that the pushing part can stably push a large-load vehicle.

[0120] In other alternative embodiments, the connecting rod 54 may not be provided on the pushing part, and the push plate 53 may be directly connected to the link mechanism 63.

[0121] Among them, as Figure 5 andFigure 6 As shown in the figure, the link mechanism 63 includes a first power output end 631 and a second power output end 632 which are symmetrically arranged. The power output end 611 of the driving member is connected to the power input end 633 of the link mechanism. The first pushing portion 51 is connected to the first power output end 631, and the second pushing portion 52 is connected to the second power output end 632. The driving member 61 is used to drive the first power output end 631 and the second power output end 632 to approach or move away from each other in the vehicle width direction, so as to drive the first pushing portion 51 and the second pushing portion 52 to move synchronously in the vehicle width direction in opposite directions, so as to push against the wheels on the corresponding side of the vehicle.

[0122] The link mechanism 63 can realize the synchronous driving of the first pushing portion 51 and the second pushing portion 52, ensure that the moving distances of the first pushing portion 51 and the second pushing portion 52 in the vehicle width direction are the same, ensure the consistency and coordination of the vehicle wheelbase adjustment, and thus improve the accuracy of the wheelbase adjustment. Therefore, only one driving member 61 needs to be provided to control the two power output ends of the link mechanism 63 to act on the corresponding pushing portions respectively to push against the wheels on the corresponding sides, reducing the cost of the driving member 61. In addition, it is possible to judge the adjustment situation of the pushing portion on the other side by only monitoring whether the pushing portion on one side adjusts the wheel in place, so that only one in-place detection mechanism for detecting whether the wheel adjusts in place can be provided, further reducing the cost of the lift.

[0123] Among them, the in-place detection mechanism for detecting whether the wheel adjusts in place belongs to the prior art and will not be elaborated here.

[0124] As Figure 6 shown, the driving member 61 in this embodiment is a linear driving member, specifically a hydraulic cylinder. The hydraulic cylinder includes a piston 612 that can be telescoped in the vehicle width direction. The free end of the piston 612 forms the power output end 611 of the driving member. The link mechanism 63 is driven by the telescoping of the piston 612, with a simple structure and high driving strength.

[0125] In other alternative embodiments, the driving member 61 can also be other forms of linear driving members, such as air cylinders, electric cylinders, etc. The hydraulic cylinder is adopted in this embodiment because there is usually a hydraulic station in the battery swapping station that provides power for other components. Therefore, the driving portion 6 adopting the hydraulic driving method can share the hydraulic station in the battery swapping station with other components without additionally setting other power sources, reducing the cost of the battery swapping station.

[0126] Furthermore, as Figure 5 and Figure 6As shown, the driving member 61 further includes a first fixing portion 613. The first fixing portion 613 is movably connected to the piston 612. A first connection end 614 is formed at one end of the first fixing portion 613 away from the piston 612. The first connection end 614 is hinged to the second connection end 634 of the link mechanism 63, thereby fixing the relative positions of the driving member 61 and the link mechanism 63 and preventing the driving member 61 from shifting when the link mechanism 63 moves.

[0127] In other alternative embodiments, the first fixing portion 613 may not be provided, and the driving member 61 is only connected to the link mechanism through the power output end 611 of the driving member.

[0128] Furthermore, as Figure 5 and Figure 6 shown, the driving portion 6 further includes a driving valve 62. The driving valve 62 is installed on the frame body 21. The driving valve 62 is connected to the driving member 61 through a hose 65. The hose 65 reserves space for the driving member 61 to move in the vehicle traveling direction, so that the driving member 61 can move together with the link mechanism 63 in the vehicle traveling direction, improving the feasibility of the link mechanism 63 to drive the pushing portion to move in the vehicle width direction.

[0129] In other alternative embodiments, the driving valve 62 and the driving member 61 may also be connected by other connection structures that can achieve the above effects.

[0130] As Figure 5 and Figure 6 shown, the link mechanism 63 includes a first link 651, a second link 652, a third link 653, a fourth link 654, a fifth link 655, and a sixth link 656. Specifically, the first link 651 and the second link 652 are cross - arranged and hinged to each other. The first link 651 and the second link 652 can rotate relative to the frame body 21 about the axis of the intersection point of the two. The third link 653 and the fourth link 654 are arranged on one side of the first link 651 in the vehicle width direction ( Figure 5 the left side in Figure 5On the right side in [description]. The first end of the third link 653 is hinged to the first end of the first link 651, the second end of the third link 653 is hinged to the second end of the fourth link 654, the first end of the fourth link 654 is hinged to the first end of the second link 652, and the first pushing part 51 is connected to the hinge point of the third link 653 and the fourth link 654. The first end of the fifth link 655 is hinged to the second end of the second link 652, the second end of the fifth link 655 is hinged to the second end of the sixth link 656, the first end of the sixth link 656 is hinged to the second end of the first link 651, and the second pushing part 52 is connected to the hinge point of the fifth link 655 and the sixth link 656.

[0131] In this embodiment, the hinged end of the first link 651 and the third link 653 forms the power input end 633 of the linkage mechanism, and the driving part 61 is connected to the hinge point of the first link 651 and the third link 653. The hinged end of the second link 652 and the fifth link 655 forms the second connection end 634, and the first fixing part 613 of the driving part 61 is connected to the hinge point of the second link 652 and the fifth link 655.

[0132] When the power output end 611 of the driving part expands and contracts, it will drive the first link 651 and the third link 653 connected thereto to rotate. Since the various links in the linkage mechanism 63 are interlinked with each other, the second link 652, the fourth link 654, the fifth link 655 and the sixth link 656 also rotate synchronously accordingly, realizing the adjustment of the entire linkage mechanism 63. The rotation of the link will change its own length in the vehicle width direction, and further control the distance that the first pushing part 51 and the second pushing part 52 move in the vehicle width direction by adjusting the rotation angle of the link.

[0133] In other alternative embodiments, the piston 612 of the driving part 61 can also be directly connected to a link in the linkage mechanism 63 (such as the first link 651) or can also be connected to the hinge point between other two links, which can be designed according to the actual situation. In this embodiment, the hinge point of the first link 651 and the third link 653 is used as the connection point between the linkage mechanism 63 and the driving part 61, so that the two connections can share one hinge part, simplifying the overall structure of the wheel alignment device.

[0134] In other alternative embodiments, the first fixing part 613 of the driving part 61 can also be directly connected to a link in the linkage mechanism 63 (such as the second link 652) or can also be connected to the hinge point between other two links, which can be designed according to the actual situation. In this embodiment, the hinge point of the second link 652 and the fifth link 655 is used as the connection point between the first fixing part 613 and the second connection end 634 of the linkage mechanism 63, so that the two connections can share one hinge part, simplifying the overall structure of the wheel alignment device.

[0135] As Figure 6 shown, the link mechanism 63 further includes a second fixing portion 66. The second fixing portion 66 is rotatably connected to the intersection point of the first link 651 and the second link 652, and the second fixing portion 66 is mounted on the frame body 21. Specifically, the second fixing portion 66 includes a fixing member 661 and a rotating shaft 662. The fixing member 661 is mounted on the frame body 21. The rotating shaft 662 is fixed on the fixing member 661 and is rotatably connected to the fixing member 661. The fixing member 661 is used to realize the installation of the rotating shaft 662 on the frame body 21. The rotating shaft 662 passes through the first link 651 and the second link 652, and both the first link 651 and the second link 652 are rotatably connected to the rotating shaft 662. The rotating shaft 662 can limit the horizontal displacement of the first link 651 and the second link 652 during the rotation process.

[0136] The second fixing portion 66 is used to realize the positioning and fixing of the first link 651 and the second link 652 on the frame body 21, prevent the first link 651 and the second link 652 from generating horizontal displacement during the rotation process, and further ensure that the first pushing portion 51 and the second pushing portion 52 can move the same distance in the vehicle width direction, improving the accuracy of the wheelbase adjustment.

[0137] Furthermore, as Figure 6 shown, the fixing member 661 includes a first fixing unit 6611 and a second fixing unit 6612. The first fixing unit 6611 is disposed below the first link 651 and the second link 652 to raise the overall link mechanism 63 by raising the first link 651 and the second link 652, prevent the links in the link mechanism 63 from rubbing against the frame body 21 during rotation, and ensure the stability of the link rotation. The second fixing unit 6612 is sleeved above the first link 651 and the second link 652 and is connected to the first fixing unit 6611.

[0138] As Figure 6 shown, the second fixing portion 66 further includes a fixing shaft 663. The fixing shaft 663 extends in the vertical direction and both ends of the fixing shaft 663 are respectively connected to the first fixing unit 6611 and the second fixing unit 6612. The rotating shaft 662 is sleeved on the outer periphery of the fixing shaft 663 and is located between the first fixing unit 6611 and the second fixing unit 6612 to realize the rotational connection between the rotating shaft 662 and the first link 651 and the second link 652.

[0139] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships of the device or component during normal use, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0140] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A wheel alignment device is installed on the frame body of a lift, characterized in that, The wheel alignment device includes a driving part and a pushing part; The driving part includes a driving member and a linkage mechanism. The power output end of the driving member is connected to the power input end of the linkage mechanism. The linkage mechanism includes a symmetrically arranged first power output end and a second power output end. The driving member is used to drive the first power output end and the second power output end to approach or move away from each other in the vehicle width direction; The pushing part includes a first pushing part and a second pushing part. The first pushing part is connected to the first power output end, and the second pushing part is connected to the second power output end. The driving part is used to drive the first pushing part and the second pushing part to move synchronously away from each other in the vehicle width direction to push against the wheels on the corresponding side of the vehicle.

2. The wheel alignment device according to claim 1, characterized in that, The driving member is a linear driving member. The linear driving member includes a piston that can be telescoped in the vehicle width direction. The free end of the piston forms the power output end of the driving member.

3. The wheel alignment device according to claim 2, characterized in that, The linkage mechanism includes a first link and a second link that are cross - arranged and hinged to each other. The power output end of the driving member is hinged to the first link. The first link and the second link rotate relative to the frame body around the axis of the intersection point.

4. The wheel alignment device according to claim 3, characterized in that, The linkage mechanism further includes a third link, a fourth link, a fifth link, and a sixth link. The third link and the fourth link are arranged on one side of the first link in the vehicle width direction, and the fifth link and the sixth link are arranged on the other side of the first link in the vehicle width direction; The first end of the third link is hinged to the first end of the first link, the second end of the third link is hinged to the second end of the fourth link, the first end of the fourth link is hinged to the first end of the second link, and the first pushing part is connected to the hinge point of the third link and the fourth link; The first end of the fifth link is hinged to the second end of the second link, the second end of the fifth link is hinged to the second end of the sixth link, the first end of the sixth link is hinged to the second end of the first link, and the second pushing part is connected to the hinge point of the fifth link and the sixth link.

5. The wheel alignment device according to claim 4, characterized in that, The hinged end of the first link and the third link forms the power input end of the linkage mechanism; And / or, the pushing part includes a push plate and a connecting rod. One end of the connecting rod is connected to the push plate, and the other end of the connecting rod is connected to the linkage mechanism; And / or, the driving member further includes a first fixing part. The first fixing part is movably connected to the piston. The end of the first fixing part away from the piston forms a first connection end, and the first connection end is hinged to the second connection end of the linkage mechanism.

6. The wheel alignment device according to claim 5, characterized in that, When the driving member includes a first fixing part; The hinged end of the second link and the fifth link forms the second connection end; And / or, the driving part further includes a driving valve. The driving valve is installed on the frame body, and the driving valve is connected to the driving member through a hose.

7. The wheel alignment device according to claim 3, characterized in that, The linkage mechanism further includes a second fixing part. The second fixing part is rotationally connected to the intersection point of the first link and the second link, and the second fixing part is installed on the frame body.

8. The wheel alignment device according to claim 7, wherein, The second fixing part includes a fixing member and a rotating shaft. The rotating shaft is fixed on the fixing member and rotatably connected to the fixing member. The rotating shaft penetrates through the first connecting rod and the second connecting rod, and both the first connecting rod and the second connecting rod are rotatably connected to the rotating shaft. The fixing member is installed on the frame body.

9. The wheel alignment device according to any one of claims 1-8, characterized in that, The wheel positioning device further includes a wheel placement part for supporting the wheel. The wheel placement part includes a first wheel placement part and a second wheel placement part, and the first wheel placement part and the second wheel placement part are arranged at intervals in the vehicle width direction; In the vehicle width direction, the first pushing part, the driving part, and the second pushing part are all located between the first wheel placement part and the second wheel placement part. The first wheel placement part and the first pushing part are correspondingly arranged, and the second wheel placement part and the second pushing part are correspondingly arranged.

10. A lift, characterized in that, The lift includes a frame body and the wheel positioning device according to any one of claims 1-9.

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