Lifting machine and battery replacing station

Abstract

The utility model 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 utility model relates to a lift and a battery swap station. Background Art

[0002] In recent years, new energy vehicles have developed rapidly. Battery-swap vehicles that rely on batteries as driving energy have the advantages of zero emissions and low noise. As the market share and usage frequency of battery-swap vehicles are increasing, centering devices used to provide battery replacement for battery-swap vehicles of different models are becoming more and more popular.

[0003] In existing battery swap stations, in order to remove or install the battery installed at the bottom of the electric vehicle, it is generally necessary to set up a lift to lift the electric vehicle to a certain height, leaving enough space for the battery swap cart to enter and exit the bottom of the vehicle and perform the removal and installation operations. Since most electric vehicles are driven by drivers to the area corresponding to the lift, it is bound to lead to different parking positions for different vehicles, which is not convenient for the battery swap cart to perform the battery swap operation. Therefore, the vehicle position can be adjusted in advance.

[0004] In the prior art, a push mechanism is provided in the outer area of ​​the lift to push the wheels of the vehicle from the outside to adjust the position of the vehicle along the length direction of the vehicle body to a centered state, so that the battery swapping vehicle can enter and exit the bottom of the vehicle between the front and rear wheels of the vehicle. However, since the push mechanism is controlled separately, the vehicle may be offset during the centering process. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defect of poor synchronization of the centering device in the prior art when pushing the wheel to be centered, and to provide a lift and a battery swap station.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A lifting machine, comprising:

[0008] A mobile base, the mobile base being able to move forward and backward along the traveling direction of the battery-swapping vehicle;

[0009] A centering device, which is used to adjust the position of the battery-swapping vehicle and is arranged corresponding to the space between two wheels at the same end of the battery-swapping vehicle;

[0010] Wherein, the centering device is arranged on the mobile base, and the mobile base is used to drive the centering device to move forward and backward along the traveling direction of the battery-swap vehicle.

[0011] In the present technical solution, by setting the centering device on a mobile base, the entire centering device can be driven by the mobile base to move forward and backward along the traveling direction of the battery swapping vehicle, thereby realizing synchronous adjustment of the thrust points of the two wheels at the same end of the battery swapping vehicle along the traveling direction of the battery swapping vehicle, avoiding position deviation in the traveling direction, ensuring effective centering of the wheels during battery swapping, providing accuracy guarantee, and improving the reliability of the centering.

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

[0013] The two ends of the lifting device are respectively provided with downwardly recessed wheel limiting mechanisms, and the two ends of the mobile base are respectively connected to the two wheel limiting mechanisms. The two wheel limiting mechanisms move forward and backward synchronously along the traveling direction of the battery-swap vehicle to drive the mobile base to move.

[0014] In the present technical solution, the two ends of the mobile base are respectively connected to the two wheel limiting mechanisms located at the two ends of the lifting device, thereby achieving synchronous forward and backward movement of the mobile base and the two wheel limiting mechanisms.

[0015] Preferably, the wheel limiting mechanism comprises a mounting seat, the top surface of the mounting seat is V-shaped and provided with two rows of rollers to form the depression, and the two ends of the movable base are fixedly connected between the side walls of the mounting seats of the two wheel limiting mechanisms.

[0016] Preferably, a mounting portion protruding from the side wall and extending toward the mobile base is provided on the side wall of the mounting seat, and two ends of the mobile base are respectively fixedly connected to the mounting portions of the mounting seats of the two wheel limiting mechanisms.

[0017] In the present technical solution, by providing a mounting portion on the mounting seat, not only can the fixing of the movable base be facilitated, but also the overall structure of the wheel limiting mechanism can be made more compact.

[0018] Preferably, a waist hole is provided on the first end of the mobile base, and the waist hole is arranged along the traveling direction. The first fixing member is passed through the waist 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 the second fixing member.

[0019] In this technical solution, the mobile base and the wheel limiting mechanism are fixed by setting a first fixing member passing through a waist hole on the first end of the mobile base. When the mobile base and the wheel limiting mechanisms at both ends move synchronously, slight twisting or deformation is allowed to avoid jamming.

[0020] Preferably, the lift further comprises a driving mechanism, wherein the driving mechanism is used to drive the wheel limiting mechanism to drive the movable base to move forward and backward along the traveling direction, and the driving mechanism is arranged below the wheel limiting mechanism.

[0021] In the present technical solution, a driving mechanism is provided to enable the wheel limiting mechanism to move forward and backward along the traveling direction, thereby enabling the mobile base to drive the centering device to move forward and backward along the traveling direction of the battery-swap vehicle.

[0022] 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 forward and backward along the traveling direction.

[0023] In this technical solution, two driving mechanisms are provided to synchronously drive the corresponding wheel limiting mechanisms to move forward and backward along the traveling direction of the battery-swapping vehicle, so that the mobile base synchronously drives the centering device to move forward and backward along the traveling direction of the battery-swapping vehicle.

[0024] Preferably, the lift further comprises a support frame arranged below the wheel limiting mechanism, 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 on the slider.

[0025] In the present technical solution, by providing a slide rail and a slider, the forward and backward movement of the wheel limiting mechanism is made smoother, so that the mobile base drives the centering device to move forward and backward along the travel direction of the battery-swap vehicle more smoothly.

[0026] Preferably, the centering device comprises:

[0027] A first push plate and a second push plate, wherein the first push plate and the second push plate are respectively arranged toward 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 located 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, wherein the first hydraulic cylinder and the second hydraulic cylinder are connected to the first push plate and the second push plate respectively, and the first hydraulic cylinder and the second hydraulic cylinder enable the first push plate and the second push plate to move synchronously;

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

[0030] In the present technical solution, by providing a first push plate and a second push plate, the centering adjustment of the two wheels at the same end of the battery-swapping vehicle is achieved; by providing a first hydraulic cylinder and a second hydraulic cylinder that drive the first push plate and the second push plate respectively, the hydraulic transmission replaces the traditional mechanical structure transmission method during the centering process, thereby reducing the wear of the mechanical structure and improving the reliability and reusability of the centering. By providing the first push plate and the second push plate, the first hydraulic cylinder and the second hydraulic cylinder on a movable base, the first push plate and the second push plate, the first hydraulic cylinder and the second hydraulic cylinder are driven to move forward and backward along the travel direction of the battery-swapping vehicle, which can not only ensure the effective centering of the vehicle during battery replacement, provide accuracy guarantee, and improve the reliability of the centering and the efficiency of battery replacement; at the same time, it can also make the overall structure more compact.

[0031] Preferably, the first hydraulic cylinder and the second hydraulic cylinder are connected to an external solenoid valve in series, 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 soft pipe; and / or,

[0032] The first hydraulic cylinder and / or the second hydraulic cylinder is communicated with the outside through a soft pipe.

[0033] In the present technical solution, the first hydraulic cylinder and the second hydraulic cylinder are connected in series so as to improve the reliability of centering and enable the first hydraulic cylinder and the second hydraulic cylinder to move synchronously, thereby improving the synchronous push of the wheels when the vehicle is centered, that is, the synchronicity, and ensuring the effective centering of the wheels during battery replacement, thereby providing precision guarantee; an electromagnetic valve is provided to control the hydraulic pressure in the first hydraulic cylinder and the second hydraulic cylinder; and the first hydraulic cylinder and / or the second hydraulic cylinder are connected to the outside through a soft tube, thereby avoiding the first hydraulic cylinder and the second hydraulic cylinder from moving forward and backward along the travel direction of the battery replacement vehicle and affecting the normal connection between the two and the outside.

[0034] Preferably, the first push plate and the second push plate are both provided with a connecting plate, the connecting plate passes through the corresponding mounting seat of the wheel limiting mechanism and extends toward the first hydraulic cylinder or the second hydraulic cylinder, and the connecting plate is used to be connected to the first hydraulic cylinder or the second hydraulic cylinder; the centering device also includes a guiding mechanism, and the number of the guiding mechanisms is two, and the two guiding mechanisms are respectively arranged on the mounting seats of the corresponding wheel limiting mechanisms along the movement direction of the first push plate and the second push plate; the guiding mechanism includes a guide rod, and the number of the guide rods is two, and the two guide rods are passed 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 plate to move back and forth between the two guide rods; the lift also includes a first ranging sensor, and the first ranging sensor is arranged corresponding to one of the guide rods of the two guiding mechanisms, and the first ranging sensor is used to detect the displacement distance of the guide rod moving forward and backward along the traveling direction of the battery exchange vehicle.

[0035] In the present technical solution, a guiding mechanism is provided to guide the pushing direction during the movement of the push plate, thereby preventing the push plate from being offset and failing to center the vehicle. The guide rods are relatively arranged on both sides of the protruding end so that the protruding end is always located between the guide rods on both sides when the protruding end moves. The guide rods on both sides guide the protruding end, thereby avoiding a series of problems caused by the offset of the protruding end. A first ranging sensor is provided to measure the displacement distance of the guide rod moving forward and backward along the direction of travel of the battery-swap vehicle, and the displacement distance is used to determine whether the battery-swap vehicle has reached a preset position when moving forward and backward along the direction of travel, so as to perform the battery-swap operation more accurately and enable the battery-swap operation to be applicable to vehicles with different wheelbases.

[0036] Preferably, the lift includes a second ranging sensor, which is arranged corresponding to the mobile base, and the second ranging sensor is used to detect the displacement distance of the mobile base moving forward and backward along the traveling direction of the battery-swap vehicle.

[0037] In the present technical solution, a second ranging sensor is provided to measure the displacement distance of the mobile base moving forward and backward along the traveling direction of the battery swapping vehicle. Based on the displacement distance, it is determined whether the battery swapping vehicle has reached a preset position by moving forward and backward along the traveling direction, so as to perform the battery swapping operation more accurately and enable the battery swapping operation to be applicable to vehicle models with different wheelbases.

[0038] A battery swap station, comprising the lift as described above.

[0039] The positive and progressive effects of the utility model are:

[0040] By setting the centering device on a mobile base, the entire centering device can be driven by the mobile base to move forward and backward along the travel direction of the battery swapping vehicle, thereby realizing synchronous adjustment of the thrust points of the two wheels at the same end of the battery swapping vehicle along the travel direction of the battery swapping vehicle, avoiding position deviation in the travel direction, ensuring effective centering of the wheels during battery swapping, providing accuracy assurance, and improving the reliability of the centering. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the three-dimensional structure of a lifting device according to a preferred embodiment of the utility model.

[0042] Figure 2 It is a partial three-dimensional structural schematic diagram of a lifting device according to a preferred embodiment of the utility model.

[0043] Figure 3 for Figure 2 Enlarged view of part A.

[0044] Figure 4 It is a partial three-dimensional structural schematic diagram from another angle of a lifting device of a preferred embodiment of the utility model.

[0045] Figure 5 for Figure 4 Enlarged view of part B.

[0046] Figure 6 for Figure 4 Magnified view of part C.

[0047] Figure 7 This is a partial three-dimensional structural schematic diagram from another angle of a lifting device of a preferred embodiment of the utility model.

[0048] Figure 8 for Figure 7 Enlarged view of part D.

[0049] Fig. 9 This is a partial three-dimensional structural schematic diagram of a lifting device of a preferred embodiment of the utility model from another angle.

[0050] Description of Reference Numerals

[0051] Lifting device 1

[0052] Mobile base 10

[0053] First End 11

[0054] Waist hole 111

[0055] Second end 12

[0056] Fixed frame 13

[0057] Centering device 20

[0058] First push plate 21

[0059] Second push plate 22

[0060] First hydraulic cylinder 23

[0061] Inlet 231 of the first hydraulic cylinder

[0062] Outlet 232 of the first hydraulic cylinder

[0063] Second hydraulic cylinder 24

[0064] Inlet 241 of the second hydraulic cylinder

[0065] The outlet 242 of the second hydraulic cylinder

[0066] Connecting plate 25

[0067] Guide mechanism 26

[0068] Guide rod 261

[0069] Guide sleeve 262

[0070] Wheel limit mechanism 30

[0071] Mounting Block 31

[0072] Mounting section 32

[0073] Slider 33

[0074] The first fixing member 41

[0075] The second fixing member 42

[0076] Driving mechanism 51

[0077] Support frame 52

[0078] Slide 53

[0079] Upper cover 61

[0080] Side cover 62

[0081] Solenoid valve 70

[0082] Soft tube 80

[0083] First distance measuring sensor 91

[0084] Pressure sensor 92

[0085] The third distance measuring sensor 93

[0086] The direction of travel of the battery-swapping vehicle P DETAILED DESCRIPTION

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

[0088] like Figure 1-Figure 9 As shown, this embodiment discloses a lifting machine, which includes: a moving base 10 and a centering device 20.

[0089] The mobile base 10 can move forward and backward along the travel direction P of the battery swapping vehicle. The centering device 20 is used to adjust the position of the battery swapping vehicle, and is set corresponding to the space between the two wheels at the same end of the battery swapping vehicle. The centering device 20 is set on the mobile base 10, and the mobile base 10 is used to drive the centering device 20 to move forward and backward along the travel direction P of the battery swapping vehicle.

[0090] In this way, by setting the centering device 20 on the mobile base 10, the entire centering device 20 can be driven by the mobile base 10 to move forward and backward along the traveling direction P 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 along the traveling direction P of the battery swapping vehicle, avoiding the position deviation in the traveling direction P, ensuring the effective centering of the wheels during battery swapping, providing accuracy guarantee, and improving the reliability of the centering.

[0091] The lift also includes a lifting device 1 disposed on the vehicle-carrying platform, and a mobile base 10 and a centering device 20 are both disposed on the lifting device 1. The two ends of the lifting device 1 are respectively provided with downwardly recessed wheel limiting mechanisms 30, and the two ends of the mobile base 10 are respectively connected to the two wheel limiting mechanisms 30, and the two wheel limiting mechanisms 30 synchronously move forward and backward along the travel direction P of the battery-swap vehicle to drive the mobile base 10 to move. In this way, by setting the two ends of the mobile base 10 to be respectively connected to the two wheel limiting mechanisms 30 located at the two ends of the lifting device 1, the mobile base 10 and the two wheel limiting mechanisms 30 can be moved forward and backward synchronously.

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

[0093] Specifically, the wheel limiting mechanism 30 includes a mounting seat 31, the top surface of the mounting seat 31 is V-shaped and has two rows of rollers to form a depression, and the two ends of the mobile base 10 are fixedly connected between the side walls of the mounting seats 31 of the two wheel limiting mechanisms 30. The side walls of the mounting seats 31 are provided with mounting portions 32 protruding from the side walls and extending toward the direction close to the mobile base 10, and the two ends of the mobile base 10 are respectively fixedly connected to the mounting portions 32 of the mounting seats 31 of the two wheel limiting mechanisms 30. In this way, by providing the mounting portions 32 on the mounting seats 31, it is not only convenient to fix the mobile base 10, but also the overall structure of the wheel limiting mechanism 30 can be made more compact.

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

[0095] Furthermore, a waist hole 111 is provided on the first end 11 of the mobile base 10, and the waist hole 111 is arranged along the travel direction P. The first fixing member 41 is inserted into the waist hole 111 and fixes the mobile base 10 and the mounting portion 32 of one of the mounting seats 31 together; the second end 12 of the mobile base 10 is fixed to the mounting portion 32 of the other mounting seat 31 through the second fixing member 42. In this way, by setting the first fixing member 41 to penetrate the waist hole 111 on the first end 11 of the mobile base 10, the mobile base 10 and the wheel limiting mechanism 30 are fixed, and when the mobile base 10 and the wheel limiting mechanisms 30 at both ends move synchronously, some twisting or deformation is allowed to avoid jamming.

[0096] In this embodiment, the lift also includes a driving mechanism 51, which is used to drive the wheel limiting mechanism 30 to drive the mobile base 10 to move forward and backward along the travel direction P, and 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 move forward and backward along the travel direction P, so that the mobile base 10 drives the centering device 20 to move forward and backward along the travel direction P of the battery swap vehicle.

[0097] Specifically, there are two driving mechanisms 51, and the two driving mechanisms 51 are respectively provided corresponding to the two wheel limiting mechanisms 30, and the two driving mechanisms 51 synchronously drive the corresponding wheel limiting mechanisms 30 to move forward and backward along the travel direction P. In this way, by providing two driving mechanisms 51 to synchronously drive the corresponding wheel limiting mechanisms 30 to move forward and backward along the travel direction P of the battery swapping vehicle, the mobile base 10 synchronously drives the centering device 20 to move forward and backward along the travel direction P of the battery swapping vehicle.

[0098] In this embodiment, the lift also includes a support frame 52 disposed below the wheel limiting mechanism 30, on which a slide rail 53 and a slider 33 slidably matched with the slide rail 53 are disposed, and the wheel limiting mechanism 30 is fixed on the slider 33. In this way, by providing the slide rail 53 and the slider 33, the forward and backward movement of the wheel limiting mechanism 30 is made more stable, so that the mobile base 10 drives the centering device 20 to move forward and backward along the traveling direction P of the battery swapping vehicle more stably.

[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 toward the wheels on both sides, and the first push plate 21 and the second push plate 22 are respectively arranged 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 push the two wheels located at the same end of the battery swap vehicle respectively to realize the position centering of the battery swap 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 make the first push plate 21 and the second push plate 22 move synchronously. Among them, the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are both installed on the mobile base 10 through the fixed frame 13.

[0100] In this way, by setting 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 can be achieved; by setting the first hydraulic cylinder 23 and the second hydraulic cylinder 24 that drive the first push plate 21 and the second push plate 22 respectively, the hydraulic transmission replaces the traditional mechanical structure transmission method during the centering process, thereby reducing the wear of the mechanical structure and improving the reliability and reusability of the centering. By setting the first push plate 21 and the second push plate 22, the first hydraulic cylinder 23 and the second hydraulic cylinder 24 on the mobile 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 forward and backward along the travel direction P of the battery-swapping vehicle, which can not only ensure the effective centering of the vehicle during battery replacement, provide accuracy guarantee, and improve the reliability of the centering and the efficiency of battery replacement; 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 fixed 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 fixed frame 13 to simplify the structure and improve its structural stability.

[0102] In this embodiment, the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are connected to an external electromagnetic valve 70 in series, and the electromagnetic 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 setting the first hydraulic cylinder 23 and the second hydraulic cylinder 24 to be connected in series, the first hydraulic cylinder 23 and the second hydraulic cylinder 24 can be made to move synchronously while improving the reliability of the centering, so as to improve the synchronous push of the wheels when the vehicle is centered, that is, the synchronicity, ensure the effective centering of the wheels when the battery is replaced, and provide precision guarantee; the electromagnetic valve 70 is set 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 the external electromagnetic valve 70. Specifically, one of the interfaces of the electromagnetic valve 70 is connected between the 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 another interface of the electromagnetic valve 70. In other embodiments, one of the interfaces of the electromagnetic valve 70 may be connected between the 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 another interface of the electromagnetic valve 70, so that the first hydraulic cylinder 23 and the second hydraulic cylinder 24 can be connected in series to the external electromagnetic valve 70.

[0104] In this embodiment, since the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are both installed on the mobile base 10 through the fixed frame 13, in order to avoid the normal connection between the first hydraulic cylinder 23 and the second hydraulic cylinder 24 and the outside being affected by the forward and backward movement of the first hydraulic cylinder 23 and the second hydraulic cylinder 24 along the travel direction P of the battery exchange vehicle, the solenoid valve 70 is connected to the first hydraulic cylinder 23 and the second hydraulic cylinder 24 through a soft tube 80.

[0105] Preferably, when there is a design requirement for communication with the outside, the first hydraulic cylinder 23 is connected to the outside through a soft tube 80, or the second hydraulic cylinder 24 is connected to the outside through a soft tube 80, or both the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are connected to the outside through a soft tube 80, so as to avoid the normal communication between the first hydraulic cylinder 23 and the second hydraulic cylinder 24 and the outside being affected by the forward and backward movement of the first hydraulic cylinder 23 and the second hydraulic cylinder 24 along the travel direction P of the battery-swap vehicle.

[0106] Preferably, a connecting plate 25 is provided on both the first push plate 21 and the second push plate 22 . The connecting plate 25 passes through the corresponding mounting seat 31 and extends toward the first hydraulic cylinder 23 or the second hydraulic cylinder 24 . The connecting plate 25 is used to connect with the first hydraulic cylinder 23 or the second hydraulic cylinder 24 .

[0107] The connection between the first hydraulic cylinder 23 and the connecting plate 25, and the connection between the second hydraulic cylinder 24 and the connecting plate 25 are both provided with pressure sensors 92, which are used to detect the load on the corresponding first push plate 21 and the 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 sensor 92 to measure the load on the push plate, it is determined whether to push the vehicle to the center position according to the load, and when the preset value is reached, the hydraulic valve is closed according to the data of the force sensor to avoid damage to the vehicle.

[0108] The centering device 20 also includes a guide mechanism 26, the number of which is two, and the two guide mechanisms 26 are respectively arranged on the mounting seat 31 of the corresponding wheel limiting mechanism 30 along the movement direction of the first push plate 21 and the second push plate 22; the guide mechanism 26 includes a guide rod 261, the number of which is two, and the two guide rods 261 are penetrated on the mounting seat 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 guide mechanism 26, the moving direction of the push plate is guided during the movement of the push plate, so as to avoid the push plate from deviating and failing to complete the vehicle position centering. By relatively arranging the guide rods 261 on both sides of the protruding end, so that the guide rods 261 are always located between the guide rods 261 on both sides when the protruding end moves, the guide rods 261 on both sides play a guiding role for the protruding end, so as to avoid a series of problems caused by the deviating of the protruding end.

[0109] The lift also includes a first distance measuring sensor 91, which is provided corresponding to one of the guide rods 261 of the two guide mechanisms 26, and is used to detect the displacement distance of the guide rod 261 moving forward and backward along the travel direction P of the battery swapping vehicle. In this way, by providing the first distance measuring sensor 91 to measure the displacement distance of the guide rod 261 moving forward and backward along the travel direction P of the battery swapping vehicle, it is determined whether the battery swapping vehicle has reached a preset position by moving forward and backward along the travel direction P according to the displacement distance, so as to perform the battery swapping operation more accurately, so that the battery swapping operation can be applicable to vehicles with different wheelbases.

[0110] Preferably, the lift also includes a second ranging sensor (not shown in the figure), which is arranged corresponding to the mobile base 10, and the second ranging sensor is used to detect the displacement distance of the mobile base 10 moving forward and backward along the travel direction P of the battery swapping vehicle. In this way, the second ranging sensor is arranged to measure the displacement distance of the mobile base 10 moving forward and backward along the travel direction P of the battery swapping vehicle, and it is judged according to the displacement distance whether the battery swapping vehicle moves forward and backward along the travel direction P to reach a preset position, so as to perform the battery swapping operation more accurately, so that the battery swapping operation can be applicable to vehicle models with different wheelbases. However, it is not limited to this, the second ranging sensor can also be arranged 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 travel direction P of the battery swapping vehicle. Since the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are installed on the mobile base 10, they move forward and backward along the traveling direction P of the battery swapping vehicle together with the mobile base 10. 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 mobile 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, which are respectively arranged on one side of the fixed end of the first hydraulic cylinder 23 and the second hydraulic cylinder 24, and the two third distance measuring sensors 93 are used to respectively detect the displacement distance of the extended ends of the first hydraulic cylinder 23 and the second hydraulic cylinder 24, so as to close the solenoid valve 70 when the displacement distance reaches a preset value. By setting the third distance measuring sensor 93, when the first hydraulic cylinder 23 and the second hydraulic cylinder 24 are working, the displacement distance of the extended ends thereof is measured, and then after the displacement distance reaches the centering of the vehicle position, the hydraulic valve is closed according to the distance measuring sensor, so as to prevent the extended ends from continuing to push the wheels and damaging the vehicle. In this embodiment, since the guide rods 261 of the two guide mechanisms 26 move synchronously with the extended ends of the first hydraulic cylinder 23 and the extended ends of the second hydraulic cylinder 24, respectively, the displacement distance of the extended ends of the first hydraulic cylinder 23 and the second hydraulic cylinder 24 can be detected by the third distance measuring sensor 93 on the displacement distance of one end of the guide rod 261 close to the first hydraulic cylinder 23 or the second hydraulic cylinder 24, and the displacement distance of the extended ends of the first hydraulic cylinder 23 and the second hydraulic cylinder 24 can be detected.

[0112] The present embodiment also provides a battery swap station, which includes the above lift. In the lift in the battery swap station of the present embodiment, by setting the centering device 20 on the mobile base 10, the mobile base 10 can drive the entire centering device 20 to move forward and backward along the travel direction P of the battery swap vehicle, thereby realizing the synchronous adjustment of the thrust points of the two wheels at the same end of the battery swap vehicle moving forward and backward along the travel direction P of the battery swap vehicle, avoiding the position deviation in the travel direction P, ensuring the effective centering of the wheels during battery swapping, providing accuracy guarantee, and improving the reliability of the centering.

[0113] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A lifting machine, characterized in that: It includes: A mobile base, the mobile base being able to move forward and backward along the traveling direction of the battery-swapping vehicle; A centering device, which is used to adjust the position of the battery-swapping vehicle and is arranged corresponding to the space between two wheels at the same end of the battery-swapping vehicle; Wherein, the centering device is arranged on the mobile base, and the mobile base is used to drive the centering device to move forward and backward along the traveling direction of the battery-swap vehicle.

2. The lifting machine according to claim 1, characterized in that The lift also includes a lifting device disposed on the vehicle-carrying platform, and the mobile base and the centering device are both disposed on the lifting device; The two ends of the lifting device are respectively provided with downwardly recessed wheel limiting mechanisms, and the two ends of the mobile base are respectively connected to the two wheel limiting mechanisms. The two wheel limiting mechanisms move forward and backward synchronously along the traveling direction of the battery-swap vehicle to drive the mobile base to move.

3. The lifting machine according to claim 2, characterized in that: The wheel limiting mechanism comprises a mounting seat, the top surface of the mounting seat is V-shaped and is provided with two rows of rollers to form the depression, and the two ends of the movable base are fixedly connected between the side walls of the mounting seats of the two wheel limiting mechanisms.

4. The lifting machine according to claim 3, characterized in that A mounting portion protruding from the side wall and extending toward the moving base is provided on the side wall of the mounting seat, and two ends of the moving base are respectively fixedly connected to the mounting portions of the mounting seats of the two wheel limiting mechanisms.

5. The lifting machine according to claim 4, characterized in that A waist hole is provided on the first end of the movable base, and the waist hole is arranged along the traveling direction. The first fixing member is passed through the waist hole and fixes the movable base and the mounting part of one of the mounting seats together; the second end of the movable base is fixed to the mounting part of the other mounting seat through the second fixing member.

6. The lifting machine according to claim 2, characterized in that: The lift also includes a driving mechanism, which is used to drive the wheel limiting mechanism to drive the mobile base to move forward and backward along the travel direction, and the driving mechanism is arranged below the wheel limiting mechanism.

7. The lifting machine according to claim 6, characterized in that There are two driving mechanisms, 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.

8. The lifting machine according to claim 2, characterized in that: The lift also includes a support frame arranged below the wheel limiting mechanism, 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 on the slider.

9. A lifting machine according to any one of claims 3 to 8, characterized in that: The centering device comprises: A first push plate and a second push plate, wherein the first push plate and the second push plate are respectively arranged toward 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 located at the same end of the battery-swapping vehicle to realize the position centering of the battery-swapping vehicle; A first hydraulic cylinder and a second hydraulic cylinder, wherein the first hydraulic cylinder and the second hydraulic cylinder are connected to the first push plate and the second push plate respectively, and the first hydraulic cylinder and the second hydraulic cylinder enable the first push plate and the second push plate to move synchronously; Wherein, the first hydraulic cylinder and the second hydraulic cylinder are both installed on the mobile base through a fixing frame.

10. The lifting machine according to claim 9, characterized in that The first hydraulic cylinder and the second hydraulic cylinder are connected to an external solenoid valve in series, 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 soft pipe; and / or, The first hydraulic cylinder and / or the second hydraulic cylinder is communicated with the outside through a soft pipe.

11. The lifting machine according to claim 9, characterized in that The first push plate and the second push plate are both provided with a connecting plate, and the connecting plate extends through the corresponding mounting seat of the wheel limiting mechanism toward the first hydraulic cylinder or the second hydraulic cylinder, and the connecting plate is used to be connected to the first hydraulic cylinder or the second hydraulic cylinder; the centering device also includes a guiding mechanism, and the number of the guiding mechanisms is two, and 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 a guide rod, and the number of the guide rods is two, and the two guide rods are passed 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 plate to move back and forth between the two guide rods; the lift also includes a first ranging sensor, and the first ranging sensor is arranged corresponding to one of the guide rods of the two guiding mechanisms, and the first ranging sensor is used to detect the displacement distance of the guide rod moving forward and backward along the traveling direction of the battery exchange vehicle.

12. The lifting machine according to claim 1, characterized in that The lift includes a second ranging sensor, which is arranged corresponding to the mobile base, and the second ranging sensor is used to detect the displacement distance of the mobile base moving forward and backward along the traveling direction of the battery-exchange vehicle.

13. A battery swap station, characterized in that: The battery swap station comprises a lift as described in any one of claims 1-12.

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