Lifting machine and battery replacing station

Abstract

The invention discloses a lifting machine and a battery replacing station. The lifting machine comprises a movable base and a lifting device, wherein the movable base can move front and back in the advancing direction of the battery replacing vehicle; the centering device is used for carrying out centering adjustment on the position of the battery replacing vehicle, and the centering device is arranged corresponding to the space between two wheels at the same end of the battery replacing vehicle; wherein the centering device is arranged on the movable base, and the movable base is used for driving the centering device to move front and back in the advancing direction of the battery replacing vehicle. The centering device is arranged on the movable base, the whole centering device can be driven by the movable base to move front and back in the advancing direction of the battery replacing vehicle, and therefore synchronous adjustment of front-back movement of thrust points of two wheels at the same end of the battery replacing vehicle in the advancing direction of the battery replacing vehicle is achieved; the situation of position deviation in the advancing direction is avoided, it is guaranteed that the wheels are effectively centered during battery replacement, precision guarantee is provided, and the centering reliability is improved.

Description

Technical Field

[0001] The present invention relates to a lift and a battery swapping station. Background Art

[0002] In recent years, new energy vehicles have developed rapidly. Battery swapping vehicles powered by storage batteries have the advantages of zero emissions and low noise. As the market share and usage frequency of battery swapping vehicles are increasing, centering devices for providing battery replacement for different battery swapping vehicle models are becoming more and more popular.

[0003] In existing battery swapping stations, in order to perform the disassembly or installation operation on the battery installed at the bottom of an electric vehicle, a lift is generally set up to lift the electric vehicle to a certain height, leaving enough space for the battery swapping trolley to enter and exit the bottom of the vehicle and perform the disassembly and assembly operations. Since most electric vehicles are driven by the driver to the area corresponding to the lift, it is inevitable that the parking positions of different vehicles are different, which is not convenient for the battery swapping trolley to perform the battery swapping operation. Therefore, the vehicle position can be adjusted in advance.

[0004] In the prior art, a pushing mechanism is provided in the outer area of the lift to push the wheels of the vehicle from the outside respectively to adjust the position of the vehicle in the longitudinal direction of the vehicle body to the centering state, so that the battery swapping trolley can enter and exit the bottom of the vehicle between the front and rear wheels of the vehicle. However, since the pushing mechanisms are controlled separately, there is a situation of position deviation during the position centering process of the vehicle. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect of poor synchronism in the centering device when pushing the wheels to be centered in the prior art, and provide a lift and a battery swapping station.

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

[0007] A lift, comprising:

[0008] A moving base that can move back and forth along the traveling direction of the battery swapping vehicle;

[0009] A centering device for centering and adjusting the position of the battery swapping vehicle, and is correspondingly arranged relative to the space between two wheels at the same end of the battery swapping vehicle;

[0010] Wherein, the centering device is arranged on the moving base, and the moving base is used to drive the centering device to move back and forth along the traveling direction of the battery swapping vehicle.

[0011] In this technical solution, by arranging the centering device on the mobile base, the entire centering device can be driven by the mobile base to move back and forth along the traveling direction of the battery swapping vehicle, so as to realize the synchronous adjustment of the thrust points of the two wheels at the same end of the battery swapping vehicle moving back and forth along the traveling direction of the battery swapping vehicle, avoid the situation of position deviation in the traveling direction, ensure the effective centering of the wheels during battery swapping, provide accuracy guarantee, and improve the reliability of centering.

[0012] Preferably, the lift further includes a lifting device arranged on the vehicle-carrying platform, and both the mobile base and the centering device are arranged on the lifting device;

[0013] Wheel limiting mechanisms sunken downward are respectively arranged at both ends of the lifting device, both ends of the mobile base are respectively connected to the two wheel limiting mechanisms, and the two wheel limiting mechanisms move back and forth synchronously along the traveling direction of the battery swapping vehicle to drive the mobile base to move.

[0014] In this technical solution, by arranging both ends of the mobile base to be respectively connected to the two wheel limiting mechanisms located at both ends of the lifting device, the synchronous forward and backward movement of the mobile base and the two wheel limiting mechanisms is realized.

[0015] Preferably, the wheel limiting mechanism includes a mounting seat, and two rows of rollers are arranged in a V shape on the top surface of the mounting seat to form the depression, and both ends of the mobile base are fixedly connected between the side walls of the mounting seats of the two wheel limiting mechanisms.

[0016] Preferably, mounting parts protruding from the side wall and extending towards the mobile base are arranged on the side walls of the mounting seat, and both ends of the mobile base are respectively fixedly connected to the mounting parts of the mounting seats of the two wheel limiting mechanisms.

[0017] In this technical solution, by arranging the mounting parts on the mounting seat, it is not only convenient to fix the mobile base, but also makes the overall structure of the wheel limiting mechanism more compact.

[0018] Preferably, a waist-shaped hole is arranged on the first end of the mobile base, the waist-shaped hole is arranged along the traveling direction, a first fixing member is passed through the waist-shaped hole and fixes the mobile base and the mounting part of one of the mounting seats together; the second end of the mobile base is fixed to the mounting part of the other mounting seat through a second fixing member.

[0019] In this technical solution, by arranging the first fixing member to pass through the waist-shaped hole on the first end of the mobile base to fix the mobile base and the wheel limiting mechanism, it is allowed to twist or deform slightly when the mobile base and the wheel limiting mechanisms at both ends move synchronously, so as to avoid jamming.

[0020] Preferably, the lift further includes a driving mechanism for driving the wheel limiting mechanism to drive the moving base to move forward and backward along the traveling direction, and the driving mechanism is arranged below the wheel limiting mechanism.

[0021] In this technical solution, by arranging the driving mechanism, the wheel limiting mechanism is enabled to move forward and backward along the traveling direction, so that the moving base drives the centering device to move forward and backward along the traveling direction of the battery swapping vehicle.

[0022] Preferably, the number of the driving mechanisms is two, and the two driving mechanisms are respectively arranged corresponding to the two wheel limiting mechanisms, and the two driving mechanisms synchronously drive the corresponding wheel limiting mechanisms to move forward and backward along the traveling direction.

[0023] In this technical solution, by arranging two driving mechanisms to synchronously drive the corresponding wheel limiting mechanisms to move forward and backward along the traveling direction of the battery swapping vehicle, the moving base drives the centering device to move forward and backward along the traveling direction of the battery swapping vehicle synchronously.

[0024] Preferably, the lift further includes a support frame arranged below the wheel limiting mechanism. A slide rail and a slider slidably matched with the slide rail are arranged on the support frame, and the wheel limiting mechanism is fixed on the slider.

[0025] In this technical solution, by arranging the slide rail and the slider, the forward and backward movement of the wheel limiting mechanism is made more stable, so that the moving base drives the centering device to move forward and backward along the traveling direction of the battery swapping vehicle more stably.

[0026] Preferably, the centering device includes:

[0027] A first push plate and a second push plate, which are respectively arranged towards the wheels on both sides, and the first push plate and the second push plate are respectively arranged at the inner edges of the two wheel limiting mechanisms and are movably arranged relative to the wheel limiting mechanisms. The first push plate and the second push plate are used to respectively push against the two wheels at the same end of the battery swapping vehicle to realize the position centering of the battery swapping vehicle;

[0028] A first hydraulic cylinder and a second hydraulic cylinder, which are respectively connected to the first push plate and the second push plate, and the first hydraulic cylinder and the second hydraulic cylinder enable the first push plate and the second push plate to act synchronously;

[0029] Wherein, the first hydraulic cylinder and the second hydraulic cylinder are both installed on the moving base through a fixing frame.

[0030] In this technical solution, by setting the first push plate and the second push plate, the centering adjustment of the two wheels at the same end of the battery swapping vehicle is realized respectively; by setting the first hydraulic cylinder and the second hydraulic cylinder that drive the first push plate and the second push plate respectively, the hydraulic transmission is used to replace the traditional mechanical structure transmission during the centering process, thereby reducing the wear of the mechanical structure and improving the reliability and reusability of centering. By arranging the first push plate, the second push plate, the first hydraulic cylinder and the second hydraulic cylinder on the moving base, the first push plate, the second push plate, the first hydraulic cylinder and the second hydraulic cylinder are driven to move back and forth along the traveling direction of the battery swapping vehicle, which can not only ensure the effective centering of the vehicle during battery swapping, provide accuracy guarantee, improve the reliability of centering and the battery swapping efficiency, but also make the overall structure more compact.

[0031] Preferably, the first hydraulic cylinder and the second hydraulic cylinder are connected in series to an external solenoid valve, the solenoid valve is used to control the hydraulic pressure in the first hydraulic cylinder and the second hydraulic cylinder, and the solenoid valve is connected to the first hydraulic cylinder and the second hydraulic cylinder through a flexible tube; and / or,

[0032] The first hydraulic cylinder and / or the second hydraulic cylinder are connected to the outside through a flexible tube.

[0033] In this technical solution, by connecting the first hydraulic cylinder and the second hydraulic cylinder in series, while improving the reliability of centering, the first hydraulic cylinder and the second hydraulic cylinder can move synchronously, improving the synchronous pushing of the wheels during vehicle centering, that is, the synchronism, ensuring the effective centering of the wheels during battery swapping and providing accuracy guarantee; by setting a solenoid valve to control the hydraulic pressure in the first hydraulic cylinder and the second hydraulic cylinder; by connecting the first hydraulic cylinder and / or the second hydraulic cylinder to the outside through a flexible tube, it can avoid the normal connection between the first hydraulic cylinder and the second hydraulic cylinder and the outside being affected by the back-and-forth movement of the first hydraulic cylinder and the second hydraulic cylinder along the traveling direction of the battery swapping vehicle.

[0034] Preferably, connecting plates are provided on both the first push plate and the second push plate. The connecting plates pass through the mounting seats of the corresponding wheel limiting mechanisms and extend towards the first hydraulic cylinder or the second hydraulic cylinder. The connecting plates are used to connect with the first hydraulic cylinder or the second hydraulic cylinder. The centering device further includes a guiding mechanism. The number of the guiding mechanisms is two. The two guiding mechanisms are respectively arranged on the mounting seats of the corresponding wheel limiting mechanisms along the movement directions of the first push plate and the second push plate. The guiding mechanism includes guide rods. The number of the guide rods is two. The two guide rods are inserted through the mounting seat and are respectively arranged on both sides of the connecting plate, so that the piston rods of the first hydraulic cylinder and the second hydraulic cylinder drive the corresponding connecting plates to move back and forth between the two guide rods. The lift further includes a first distance measuring sensor. The first distance measuring sensor is correspondingly arranged for one of the guide rods of the two guiding mechanisms. The first distance measuring sensor is used to detect the displacement distance of the guide rod moving back and forth along the traveling direction of the battery swapping vehicle.

[0035] In this technical solution, by providing a guiding mechanism, the moving direction of the push plate can be guided during the movement of the push plate, avoiding the push plate from shifting and being unable to complete the vehicle position centering. By arranging the guide rods oppositely on both sides of the extending end, the extending end is always located between the two guide rods when the extending end moves. The two guide rods play a guiding role for the extending end, avoiding a series of problems caused by the deviation of the extending end. By providing a first distance measuring sensor to measure the displacement distance of the guide rod moving back and forth along the traveling direction of the battery swapping vehicle, it is judged whether the battery swapping vehicle reaches a preset position by moving back and forth along the traveling direction according to this displacement distance, so as to perform the battery swapping operation more accurately and make the battery swapping operation applicable to vehicles with different wheelbases.

[0036] Preferably, the lift includes a second distance measuring sensor. The second distance measuring sensor is correspondingly arranged for the moving base. The second distance measuring sensor is used to detect the displacement distance of the moving base moving back and forth along the traveling direction of the battery swapping vehicle.

[0037] In this technical solution, by providing a second distance measuring sensor to measure the displacement distance of the moving base moving back and forth along the traveling direction of the battery swapping vehicle, it is judged whether the battery swapping vehicle reaches a preset position by moving back and forth along the traveling direction according to this displacement distance, so as to perform the battery swapping operation more accurately and make the battery swapping operation applicable to vehicles with different wheelbases.

[0038] A battery swapping station, the battery swapping station includes the lift as described above.

[0039] The positive and progressive effects of the present invention are as follows:

[0040] By arranging the centering device on the moving base, the entire centering device can be driven by the moving base to move back and forth along the traveling direction of the battery swapping vehicle, thereby realizing the synchronous adjustment of the thrust points of the two wheels at the same end of the battery swapping vehicle to move back and forth along the traveling direction of the battery swapping vehicle, avoiding the problem of position deviation in the traveling direction, ensuring effective centering of the wheels during battery swapping, providing accuracy guarantee, and improving the reliability of centering. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 FIG. is a perspective structural view of a lifting device according to a preferred embodiment of the present invention.

[0042] Figure 2 FIG. is a partial perspective structural view of a lifting device according to a preferred embodiment of the present invention.

[0043] Figure 3 is Figure 2 an enlarged view of part A in

[0044] Figure 4 FIG. is a partial perspective structural view of a lifting device according to a preferred embodiment of the present invention from another angle.

[0045] Figure 5 is Figure 4 an enlarged view of part B in

[0046] Figure 6 is Figure 4 an enlarged view of part C in

[0047] Figure 7 FIG. is a partial perspective structural view of a lifting device according to a preferred embodiment of the present invention from yet another angle.

[0048] Figure 8 is Figure 7 an enlarged view of part D in

[0049] Figure 9 FIG. is a partial perspective structural view of a lifting device according to a preferred embodiment of the present invention from still another angle.

[0050] DESCRIPTION OF THE REFERENCE NUMERALS

[0051] Lifting device 1

[0052] Moving base 10

[0053] First end 11

[0054] Slotted hole 111

[0055] Second end 12

[0056] Fixed frame 13

[0057] Centering device 20

[0058] The first push plate 21

[0059] The second push plate 22

[0060] The first hydraulic cylinder 23

[0061] The inlet 231 of the first hydraulic cylinder

[0062] The outlet 232 of the first hydraulic cylinder

[0063] The second hydraulic cylinder 24

[0064] The inlet 241 of the second hydraulic cylinder

[0065] The outlet 242 of the second hydraulic cylinder

[0066] The connecting plate 25

[0067] The guiding mechanism 26

[0068] The guide rod 261

[0069] The guide sleeve 262

[0070] The wheel limiting mechanism 30

[0071] The mounting seat 31

[0072] The mounting part 32

[0073] The slider 33

[0074] The first fixing part 41

[0075] The second fixing part 42

[0076] The driving mechanism 51

[0077] The support frame 52

[0078] The slide rail 53

[0079] The upper cover plate 61

[0080] The side cover plate 62

[0081] The solenoid valve 70

[0082] The flexible tube 80

[0083] The first distance measuring sensor 91

[0084] The pressure sensor 92

[0085] The third distance measuring sensor 93

[0086] The traveling direction P of the battery swapping vehicle Specific implementation manners

[0087] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments thereby.

[0088] As Figures 1-9 shown, this embodiment discloses a lift, which includes a moving base 10 and a centering device 20.

[0089] The moving base 10 can move back and forth along the traveling direction P of the battery swapping vehicle. The centering device 20 is used to perform centering adjustment on the position of the battery swapping vehicle, and is correspondingly arranged in the space between two wheels at the same end of the battery swapping vehicle. Among them, the centering device 20 is arranged on the moving base 10, and the moving base 10 is used to drive the centering device 20 to move back and forth along the traveling direction P of the battery swapping vehicle.

[0090] In this way, by arranging the centering device 20 on the moving base 10, the entire centering device 20 can be driven by the moving base 10 to move back and forth along the traveling direction P of the battery swapping vehicle, so as to realize the synchronous adjustment of the thrust points of the two wheels at the same end of the battery swapping vehicle moving back and forth along the traveling direction P of the battery swapping vehicle, avoid the situation of position deviation in the traveling direction P, ensure effective centering of the wheels during battery swapping, provide accuracy guarantee, and improve the reliability of centering.

[0091] The lift further includes a lifting device 1 arranged on the vehicle-carrying platform. The moving base 10 and the centering device 20 are both arranged on the lifting device 1. Wheel limiting mechanisms 30 with downward depressions are respectively arranged at both ends of the lifting device 1. Both ends of the moving base 10 are respectively connected to the two wheel limiting mechanisms 30, and the two wheel limiting mechanisms 30 move back and forth synchronously along the traveling direction P of the battery swapping vehicle to drive the moving base 10 to move. In this way, by arranging both ends of the moving base 10 to be respectively connected to the two wheel limiting mechanisms 30 located at both ends of the lifting device 1, the synchronous forward and backward movement of the moving base 10 and the two wheel limiting mechanisms 30 is realized.

[0092] It should be noted that in Figures 2-9 the upper cover plate 61 of the lifting device 1 is removed to better show the positions of the moving base 10 and the centering device 20 arranged in the lifting device 1; further, in Figure 7 and Figure 8 the side cover plates 62 of the lifting device 1 are removed to better show the structure of the bottom of the lifting device 1.

[0093] Specifically, the wheel limiting mechanism 30 includes a mounting base 31. The top surface of the mounting base 31 is V-shaped and is provided with two rows of rollers to form a depression. The two ends of the moving base 10 are fixedly connected between the side walls of the mounting bases 31 of the two wheel limiting mechanisms 30. An installation part 32 protruding from the side wall and extending towards the moving base 10 is provided on the side wall of the mounting base 31. The two ends of the moving base 10 are respectively fixedly connected to the installation parts 32 of the mounting bases 31 of the two wheel limiting mechanisms 30. In this way, by providing the installation part 32 on the mounting base 31, not only can the fixing of the moving base 10 be facilitated, but also the overall structure of the wheel limiting mechanism 30 can be made more compact.

[0094] In this embodiment, the moving base 10 is a plate-like structure, and the flat surface of the plate-like structure can provide a better fixing and installation plane for the device in the middle.

[0095] Further, a waist-shaped hole 111 is provided on the first end 11 of the moving base 10. The waist-shaped hole 111 is arranged along the traveling direction P. The first fixing member 41 passes through the waist-shaped hole 111 and fixes the moving base 10 and the installation part 32 of one of the mounting bases 31 together; the second end 12 of the moving base 10 is fixed to the installation part 32 of the other mounting base 31 through the second fixing member 42. In this way, by setting the first fixing member 41 to pass through the waist-shaped hole 111 on the first end 11 of the moving base 10 to fix the moving base 10 and the wheel limiting mechanism 30, when the moving base 10 and the wheel limiting mechanisms 30 at both ends move synchronously, a little torsion or deformation is allowed to avoid jamming.

[0096] In this embodiment, the lift further includes a driving mechanism 51. The driving mechanism 51 is used to drive the wheel limiting mechanism 30 to drive the moving base 10 to move back and forth along the traveling direction P. The driving mechanism 51 is arranged below the wheel limiting mechanism 30. In this way, by setting the driving mechanism 51, the wheel limiting mechanism 30 can be moved back and forth along the traveling direction P, so as to realize the moving base 10 driving the centering device 20 to move back and forth along the traveling direction P of the battery swapping vehicle.

[0097] Specifically, the number of the driving mechanisms 51 is two. The two driving mechanisms 51 are respectively arranged corresponding to the two wheel limiting mechanisms 30, and the two driving mechanisms 51 synchronously drive the corresponding wheel limiting mechanisms 30 to move back and forth along the traveling direction P. In this way, by setting the two driving mechanisms 51 to synchronously drive the corresponding wheel limiting mechanisms 30 to move back and forth along the traveling direction P of the battery swapping vehicle, the moving base 10 can synchronously drive the centering device 20 to move back and forth along the traveling direction P of the battery swapping vehicle.

[0098] In this embodiment, the lift further includes a support frame 52 disposed below the wheel limiting mechanism 30. A slide rail 53 and a slider 33 slidably engaged with the slide rail 53 are provided on the support frame 52, and the wheel limiting mechanism 30 is fixed to the slider 33. In this way, by providing the slide rail 53 and the slider 33, the front-back movement of the wheel limiting mechanism 30 is made more stable, so that the moving base 10 drives the centering device 20 to move more smoothly back and forth along the traveling direction P of the battery swapping vehicle.

[0099] Specifically, the centering device 20 includes: a first push plate 21, a second push plate 22, a first hydraulic cylinder 23, and a second hydraulic cylinder 24. The first push plate 21 and the second push plate 22 are respectively arranged facing the wheels on both sides, and the first push plate 21 and the second push plate 22 are respectively disposed at the inner edges of the two wheel limiting mechanisms 30 and are movably arranged relative to the wheel limiting mechanisms 30. The first push plate 21 and the second push plate 22 are used to respectively push against the two wheels at the same end of the battery swapping vehicle to achieve the centering of the battery swapping vehicle. The first hydraulic cylinder 23 and the second hydraulic cylinder 24 are respectively connected to the first push plate 21 and the second push plate 22, and the first hydraulic cylinder 23 and the second hydraulic cylinder 24 synchronize the actions of the first push plate 21 and the second push plate 22. Among them, both the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are installed on the moving base 10 through a fixing frame 13.

[0100] In this way, by providing the first push plate 21 and the second push plate 22, the centering adjustment of the two wheels at the same end of the battery swapping vehicle is realized respectively; by providing the first hydraulic cylinder 23 and the second hydraulic cylinder 24 that respectively drive the first push plate 21 and the second push plate 22, the hydraulic transmission is used to replace the traditional mechanical structure transmission during the centering process, thereby reducing the wear of the mechanical structure and improving the reliability and reusability of centering. By arranging the first push plate 21 and the second push plate 22, the first hydraulic cylinder 23 and the second hydraulic cylinder 24 on the moving base 10, the first push plate 21 and the second push plate 22, the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are driven to move back and forth along the traveling direction P of the battery swapping vehicle together, which can not only ensure the effective centering of the vehicle during battery swapping, provide accuracy guarantee, improve the reliability of centering, and improve the battery swapping efficiency; at the same time, it can also make the overall structure more compact.

[0101] The first hydraulic cylinder 23 and the second hydraulic cylinder 24 are fixed on the same fixing frame 13 along the same straight line direction to reduce the space occupied by them in the lifting device 1, especially the space in the width direction, so as to reasonably utilize the space and avoid interference with other structures. In addition, the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are connected to the same fixing frame 13, which simplifies the structure and can improve its structural stability.

[0102] In this embodiment, the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are connected in series to an external solenoid valve 70, and the solenoid valve 70 is used to control the hydraulic pressure in the first hydraulic cylinder 23 and the second hydraulic cylinder 24. In this way, by arranging the first hydraulic cylinder 23 and the second hydraulic cylinder 24 to be connected in series, while improving the centering reliability, the first hydraulic cylinder 23 and the second hydraulic cylinder 24 can move synchronously, improving the synchronous pushing force on the wheels during vehicle centering, that is, synchronism, ensuring effective centering of the wheels during battery swapping, and providing accuracy guarantee; by arranging the solenoid valve 70 to control the hydraulic pressure in the first hydraulic cylinder 23 and the second hydraulic cylinder 24.

[0103] In this embodiment, the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are connected in series to an external solenoid valve 70. Specifically, one interface of the solenoid valve 70 is connected between an external hydraulic source and the inlet 231 of the first hydraulic cylinder, the outlet 232 of the first hydraulic cylinder is connected to the inlet 241 of the second hydraulic cylinder, and the outlet 242 of the second hydraulic cylinder is connected to the other interface of the solenoid valve 70. In other embodiments, it can also be that one interface of the solenoid valve 70 is connected between an external hydraulic source and the inlet 241 of the second hydraulic cylinder, the outlet 242 of the second hydraulic cylinder is connected to the inlet 231 of the first hydraulic cylinder, and the outlet 232 of the first hydraulic cylinder is connected to the other interface of the solenoid valve 70, which can also realize the connection of the first hydraulic cylinder 23 and the second hydraulic cylinder 24 in series to the external solenoid valve 70.

[0104] In this embodiment, since both the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are installed on the moving base 10 through the fixing frame 13, in order to prevent the forward and backward movement of the first hydraulic cylinder 23 and the second hydraulic cylinder 24 along the traveling direction P of the battery swapping vehicle from affecting their normal connection to the outside, the solenoid valve 70 is connected to the first hydraulic cylinder 23 and the second hydraulic cylinder 24 through a flexible pipe 80.

[0105] Preferably, in the case of a design requirement for external connection, the first hydraulic cylinder 23 is connected to the outside through the flexible pipe 80, or the second hydraulic cylinder 24 is connected to the outside through the flexible pipe 80, or both the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are connected to the outside through the flexible pipe 80, so as to prevent the forward and backward movement of the first hydraulic cylinder 23 and the second hydraulic cylinder 24 along the traveling direction P of the battery swapping vehicle from affecting their normal connection to the outside.

[0106] Preferably, connecting plates 25 are provided on both the first push plate 21 and the second push plate 22. The connecting plates 25 pass through the corresponding mounting seats 31 and extend towards the first hydraulic cylinder 23 or the second hydraulic cylinder 24, and the connecting plates 25 are used to connect to the first hydraulic cylinder 23 or the second hydraulic cylinder 24.

[0107] Pressure sensors 92 are provided at the connection between the first hydraulic cylinder 23 and the connecting plate 25, and at the connection between the second hydraulic cylinder 24 and the connecting plate 25. The pressure sensors 92 are used to detect the loads on the corresponding first push plate 21 and second push plate 22, so as to close the solenoid valve 70 when the load reaches a preset value. In this way, by setting the pressure sensors 92 to measure the loads on the push plates, it is determined whether the vehicle is pushed to the position alignment according to the loads. When the preset value is reached, the hydraulic valve is closed according to the data of the force sensors to avoid damaging the vehicle.

[0108] The alignment device 20 further includes a guiding mechanism 26. The number of the guiding mechanisms 26 is two. The two guiding mechanisms 26 are respectively arranged on the mounting seats 31 of the corresponding wheel limiting mechanisms 30 along the movement directions of the first push plate 21 and the second push plate 22. The guiding mechanism 26 includes guide rods 261. The number of the guide rods 261 is two. The two guide rods 261 are inserted through the mounting seats 31 and are respectively arranged on both sides of the connecting plate 25, so that the piston rods of the first hydraulic cylinder 23 and the second hydraulic cylinder 24 drive the corresponding connecting plate 25 to move back and forth between the two guide rods 261. In this way, by setting the guiding mechanism 26, the movement direction of the push plate during the movement is guided to avoid the push plate from shifting and failing to complete the vehicle position alignment. By arranging the guide rods 261 on both sides of the extending end relatively, when the extending end moves, it is always located between the two guide rods 261 on both sides. The two guide rods 261 play a guiding role for the extending end to avoid a series of problems caused by the deviation of the extending end.

[0109] The lift further includes a first distance measuring sensor 91. The first distance measuring sensor 91 is arranged corresponding to one of the guide rods 261 of the two guiding mechanisms 26. The first distance measuring sensor 91 is used to detect the displacement distance of the guide rod 261 moving back and forth along the traveling direction P of the battery swapping vehicle. In this way, by setting the first distance measuring sensor 91 to measure the displacement distance of the guide rod 261 moving back and forth along the traveling direction P of the battery swapping vehicle, it is determined whether the battery swapping vehicle moves to the preset position back and forth along the traveling direction P according to the displacement distance, so as to perform the battery swapping operation more accurately and make the battery swapping operation applicable to vehicle models with different wheelbases.

[0110] Preferably, the lift further includes a second distance measuring sensor (not shown in the figure). The second distance measuring sensor is disposed corresponding to the moving base 10 and is used to detect the displacement distance of the moving base 10 moving forward and backward along the traveling direction P of the battery swapping vehicle. In this way, by setting the second distance measuring sensor to measure the displacement distance of the moving base 10 moving forward and backward along the traveling direction P of the battery swapping vehicle, it is possible to determine whether the battery swapping vehicle reaches a preset position by moving forward and backward along the traveling direction P, so as to perform the battery swapping operation more accurately and make the battery swapping operation applicable to vehicles with different wheelbases. However, this is not limited thereto. The second distance measuring sensor may also be disposed corresponding to the first hydraulic cylinder 23 or the second hydraulic cylinder 24 and is used to detect the displacement distance of the first hydraulic cylinder 23 or the second hydraulic cylinder 24 moving forward and backward along the traveling direction P of the battery swapping vehicle. Since the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are mounted on the moving base 10 and thus move forward and backward together with the moving base 10 along the traveling direction P of the battery swapping vehicle, by detecting the displacement distance of the first hydraulic cylinder 23 or the second hydraulic cylinder 24 moving forward and backward along the traveling direction P of the battery swapping vehicle, the displacement distance of the moving base 10 moving forward and backward along the traveling direction P of the battery swapping vehicle can also be obtained.

[0111] The centering device 20 further includes two third distance measuring sensors 93. The two third distance measuring sensors 93 are respectively disposed on one side of the fixed ends of the first hydraulic cylinder 23 and the second hydraulic cylinder 24. The two third distance measuring sensors 93 are used to respectively detect the displacement distances of the extending ends of the first hydraulic cylinder 23 and the second hydraulic cylinder 24, so as to close the solenoid valve 70 when the displacement distances reach preset values. By setting the third distance measuring sensors 93, when the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are working, the displacement distances of their extending ends can be measured. Then, after the vehicle position is centered when the displacement distances reach a certain value, the hydraulic valve is closed according to the distance measuring sensors to prevent the extending ends from continuing to push the wheels and damaging the vehicle. In this embodiment, since the guide rods 261 of the two guiding mechanisms 26 move synchronously with the extending ends of the first hydraulic cylinder 23 and the second hydraulic cylinder 24 respectively, the displacement distances of the extending ends of the first hydraulic cylinder 23 and the second hydraulic cylinder 24 can be detected by detecting the displacement distances of one ends of the guide rods 261 close to the first hydraulic cylinder 23 or the second hydraulic cylinder 24 by the third distance measuring sensors 93.

[0112] This embodiment further provides a battery swapping station, which includes the lift as described above. In the lift of the battery swapping station in this embodiment, by disposing the centering device 20 on the moving base 10, the entire centering device 20 can be driven by the moving base 10 to move forward and backward along the traveling direction P of the battery swapping vehicle, so as to realize the synchronous adjustment of the thrust points of the two wheels at the same end of the battery swapping vehicle moving forward and backward along the traveling direction P of the battery swapping vehicle, avoid the position deviation in the traveling direction P, ensure the effective centering of the wheels during battery swapping, provide accuracy guarantee, and improve the reliability of centering.

[0113] 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 principle 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 lift, characterized in that, It includes: A mobile base that can move back and forth along the traveling direction of the battery swapping vehicle; An alignment device for aligning and adjusting the position of the battery swapping vehicle, and is correspondingly arranged in the space between two wheels at the same end of the battery swapping vehicle; Wherein, the alignment device is arranged on the mobile base, and the mobile base is used to drive the alignment device to move back and forth along the traveling direction of the battery swapping vehicle.

2. The lift according to claim 1, characterized in that, The lift also includes a lifting device arranged on the vehicle-carrying platform, and both the mobile base and the alignment device are arranged on the lifting device; Both ends of the lifting device are respectively provided with downwardly concave wheel limiting mechanisms, and both ends of the mobile base are respectively connected to the two wheel limiting mechanisms, and the two wheel limiting mechanisms move back and forth synchronously along the traveling direction of the battery swapping vehicle to drive the mobile base to move.

3. The lift according to claim 2, characterized in that, The wheel limiting mechanism includes a mounting seat, and the top surface of the mounting seat is provided with two rows of rollers in a V shape to form the depression, and both ends of the mobile base are fixedly connected between the side walls of the mounting seats of the two wheel limiting mechanisms; Preferably, the side wall of the mounting seat is provided with a mounting portion protruding from the side wall and extending towards the mobile base, and both ends of the mobile base are respectively fixedly connected to the mounting portions of the mounting seats of the two wheel limiting mechanisms; More preferably, a waist-shaped hole is provided at the first end of the mobile base, the waist-shaped hole is arranged along the traveling direction, a first fixing member is passed through the waist-shaped hole and fixes the mobile base to the mounting portion of one of the mounting seats; the second end of the mobile base is fixed to the mounting portion of the other mounting seat by a second fixing member.

4. The lift according to claim 2, characterized in that, The lift also includes a driving mechanism for driving the wheel limiting mechanism to drive the mobile base to move back and forth along the traveling direction, and the driving mechanism is arranged below the wheel limiting mechanism; Preferably, the number of the driving mechanisms is two, the two driving mechanisms are respectively arranged corresponding to the two wheel limiting mechanisms, and the two driving mechanisms synchronously drive the corresponding wheel limiting mechanisms to move back and forth along the traveling direction.

5. The lift according to claim 2, wherein, The lift also includes a support frame arranged below the wheel limiting mechanism, and the support frame is provided with a slide rail and a slider slidably matched with the slide rail, and the wheel limiting mechanism is fixed to the slider.

6. The lift according to any one of claims 3-5, characterized in that, The alignment device includes: A first push plate and a second push plate, the first push plate and the second push plate are respectively arranged towards the wheels on both sides, and the first push plate and the second push plate are respectively arranged at the inner edges of the two wheel limiting mechanisms and are movably arranged relative to the wheel limiting mechanisms, and the first push plate and the second push plate are used to respectively push against the two wheels at the same end of the battery swapping vehicle to achieve the alignment of the position of the battery swapping vehicle; A first hydraulic cylinder and a second hydraulic cylinder, the first hydraulic cylinder and the second hydraulic cylinder are respectively connected to the first push plate and the second push plate, and the first hydraulic cylinder and the second hydraulic cylinder enable the first push plate and the second push plate to act synchronously; Wherein, both the first hydraulic cylinder and the second hydraulic cylinder are mounted on the moving base through a fixing frame.

7. The lift according to claim 6, characterized in that, The first hydraulic cylinder and the second hydraulic cylinder are connected in series to an external solenoid valve, and the solenoid valve is used to control the hydraulic pressure in the first hydraulic cylinder and the second hydraulic cylinder. The solenoid valve is connected to the first hydraulic cylinder and the second hydraulic cylinder through a flexible pipe; and / or, The first hydraulic cylinder and / or the second hydraulic cylinder are connected to the outside through a flexible pipe.

8. The lift according to claim 6, wherein Connecting plates are provided on both the first push plate and the second push plate. The connecting plates pass through the mounting seats of the corresponding wheel limiting mechanisms and extend towards the first hydraulic cylinder or the second hydraulic cylinder. The connecting plates are used to connect with the first hydraulic cylinder or the second hydraulic cylinder; the centering device further includes a guiding mechanism. The number of the guiding mechanisms is two. The two guiding mechanisms are respectively arranged on the mounting seats of the corresponding wheel limiting mechanisms along the movement directions of the first push plate and the second push plate; the guiding mechanism includes guide rods. The number of the guide rods is two. The two guide rods are inserted through the mounting seats and are respectively arranged on both sides of the connecting plate, so that the piston rods of the first hydraulic cylinder and the second hydraulic cylinder drive the corresponding connecting plates to move back and forth between the two guide rods; the lift further includes a first distance measuring sensor. The first distance measuring sensor is arranged corresponding to one of the guide rods of the two guiding mechanisms. The first distance measuring sensor is used to detect the displacement distance of the guide rod moving back and forth along the traveling direction of the battery swapping vehicle.

9. The lift according to claim 1, characterized in that, The lift includes a second distance measuring sensor. The second distance measuring sensor is arranged corresponding to the moving base. The second distance measuring sensor is used to detect the displacement distance of the moving base moving back and forth along the traveling direction of the battery swapping vehicle.

10. A power exchange station, characterized in that, The battery swapping station includes the lift according to any one of claims 1-9.

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