Battery transfer system

Abstract

The embodiment of the utility model provides a battery transfer system, and relates to the technical field of port automatic battery replacement. The utility model provides a battery transfer system. The battery transfer system comprises a base, a robot and a battery lifting appliance, by arranging the robot and the battery lifting appliance, a bridge crane adopted in the prior art is replaced to be matched with manual operation, the robot is combined with the battery lifting appliance, so that the battery can be conveniently and quickly transferred, the positioning precision of the battery is high, and the transferring efficiency of the battery is improved; meanwhile, the time consumed by single battery replacement in the prior art is at least 30 minutes, and the time consumed by single battery replacement of the battery transfer system is less than or equal to 3 minutes, so that the time consumed by battery replacement is saved, and the operation efficiency of the ship is remarkably improved. The base with the guide rail and the mounting seat is arranged, and the multiple battery positions are arranged on the two sides of the guide rail in a matched mode, so that long-distance horizontal movement of the robot along a wharf shoreline can be achieved, and meanwhile the robot can adapt to gradient changes on a wharf or a deck.

Description

Technical Field

[0001] This utility model relates to the field of port automation battery swapping technology, and more specifically, to a battery transfer system. Background Technology

[0002] Current traditional ship battery swapping relies on a combination of cranes and manual labor. A bridge crane is used to lift the batteries, while manual operation is used for precise alignment and securing. This method suffers from low efficiency, poor positioning accuracy, and significant safety hazards. Specifically, when using a bridge crane in conjunction with manual operation to swap batteries on existing ships, the positioning accuracy is low, with an error of ±50mm; manual operation speed is limited, resulting in a long battery swapping time, typically exceeding 30 minutes; furthermore, the lifting of heavy equipment depends on operator experience, and human error can lead to equipment damage or personnel injury, resulting in poor safety. Utility Model Content

[0003] The purpose of this invention is to provide a battery transfer system that can conveniently and quickly transfer batteries, with short battery swapping time and high safety performance.

[0004] The embodiments of this utility model can be implemented as follows:

[0005] In a first aspect, this utility model provides a battery transfer system, comprising:

[0006] The base is provided with a guide rail and a mounting seat that is slidably connected to the guide rail. Multiple battery slots are provided on both sides of the guide rail.

[0007] A robot, comprising a body and a rotary joint, wherein the body is disposed on the mounting base to enable the robot to move along the guide rail, and one end of the rotary joint is rotatably connected to the body;

[0008] A battery holder, the top of which is connected to the other end of the rotary joint, the battery holder being used to hold the battery, the rotary joint rotating at any angle so that the working range of the battery holder covers all the battery positions.

[0009] In an optional embodiment, the rotary joint includes a first rotary joint and a second rotary joint, the body is rotatably connected to one end of the first rotary joint, the other end of the first rotary joint is rotatably connected to one end of the second rotary joint, and the other end of the second rotary joint is connected to the battery hoist.

[0010] In an optional embodiment, the fully extended length of the first and second rotary joints is ≥6 meters, and the fully extended first and second rotary joints allow the working range of the battery hoist to cover all the battery positions.

[0011] In an optional embodiment, the robot further includes a lifting axis, one end of which is connected to the other end of the rotary joint to enable the lifting axis to move up and down along the Z-axis.

[0012] In an optional embodiment, the vertical lifting stroke of the lifting shaft is ≥ 1.3 times the height of the battery;

[0013] The vertical lifting stroke of the lifting shaft is ≥3 meters.

[0014] In an optional embodiment, the lifting shaft is rotatably connected to the other end of the rotary joint, and the rotation angle of the lifting shaft is +180° to -180°.

[0015] In an optional embodiment, the base includes two first guide rails, a second guide rail, and a drive roller. The first and second guide rails are both arranged along the X-axis direction, and the second guide rail is located in the middle of the two first guide rails. The bottom of the mounting base is provided with a slider that is slidably connected to the two first guide rails.

[0016] The bottom of the mounting base is provided with a drive roller that rolls and slides within the second guide rail. The drive roller drives the mounting base to move along the first guide rail.

[0017] In an optional embodiment, the battery lifting device includes a lifting device body and a first hook and a second hook disposed at the bottom of the lifting device body. A connecting part is provided at the top of the lifting device body, and the other end of the rotating joint is connected to the connecting part. The first hook and the second hook are rotatable and can hook the frame structure of the battery.

[0018] In an optional embodiment, the battery hoist further includes a drive component, a moving rod, a first rotating rod, and a second rotating rod, wherein the first rotating rod and the second rotating rod are rotatably mounted on the hoist body and vertically penetrate the hoist body;

[0019] The bottom of the first rotating rod is connected to the first hook, and the top of the first rotating rod is eccentrically connected to one end of the moving rod. The bottom of the second rotating rod is connected to the second hook, and the top of the second rotating rod is eccentrically connected to both ends of the moving rod. The driving component is disposed on the top of the lifting device body, and the output shaft of the driving component is rotatably connected to the moving rod. The driving component is used to drive the first hook and the second hook to rotate.

[0020] In an optional embodiment, a visual positioning camera is disposed at the bottom of the lifting device body, and the visual positioning camera is used to provide positioning data of the battery;

[0021] And / or, the top of the lifting device body is provided with a positioning detection switch, which is used to detect whether the first hook and the second hook are in the open state. The top of the first rotating rod and / or the second rotating rod is provided with a contact rod, which contacts the positioning detection switch when the first hook and the second hook are in the open state.

[0022] The beneficial effects of the battery transfer system provided in this embodiment of the present invention include:

[0023] By using robots and battery lifting devices instead of the bridge cranes and manual operations used in the prior art, the robot combined with the battery lifting device can conveniently and quickly transfer batteries with high positioning accuracy, thus improving the transfer efficiency. At the same time, the time consumed by a single battery swap in the prior art is at least 30 minutes, while the battery transfer system of this application takes ≤3 minutes per swap, saving the time spent on battery swapping and significantly improving the operational efficiency of the ship.

[0024] By setting up a base with guide rails and mounting seats, and coordinating multiple battery positions on both sides of the guide rails, the robot can move horizontally over long distances along the dock shoreline, while also adapting to changes in slope on the dock or deck. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the battery swapping structure provided in this embodiment;

[0027] Figure 2 This is a schematic diagram of the battery transfer system provided in this embodiment;

[0028] Figure 3 This is a schematic diagram of the base provided in this embodiment;

[0029] Figure 4 This is a structural schematic diagram of the robot and battery hoist provided in this embodiment;

[0030] Figure 5 This is a schematic diagram of the battery hoisting device provided in this embodiment;

[0031] Figure 6 This is a side view of the battery hoist provided in this embodiment.

[0032] Icons: 010-Battery transfer system; 011-Battery compartment; 100-Base; 110-Guide rail; 111-First guide rail; 112-Second guide rail; 120-Mounting base; 121-Slider; 200-Battery position; 210-Battery; 220-Frame; 300-Robot; 310-Body; 320-Rotating joint; 321-First rotating joint; 322-Second rotating joint; 330-Lifting shaft; 400-Battery hoist; 410-Hoist body; 411-Connector; 420-First hook; 430-Second hook; 440-Driver; 441-Output shaft; 450-Moving rod; 460-First rotating rod; 470-Second rotating rod; 480-Visual positioning camera; 490-Landing detection switch. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0038] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0039] The following describes in detail the overall structure, working principle, and technical effects of the battery transfer system 010 provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0040] Please refer to Figure 1 and Figure 2 The battery transfer system 010 provided by this utility model is used to replace the battery 210 and can be applied in scenarios such as ports and electric cargo ships.

[0041] Please refer to Figure 1 and Figure 2 The present invention proposes a battery transfer system 010, comprising:

[0042] The base 100 is provided with a guide rail 110 and a mounting seat 120 slidably connected to the guide rail 110. Multiple battery slots 200 for storing batteries 210 are provided on both sides of the guide rail 110.

[0043] Robot 300 includes a body 310 and a rotary joint 320. The body 310 is mounted on a mounting base 120 so that the robot 300 can move along the guide rail 110. One end of the rotary joint 320 is rotatably connected to the body 310.

[0044] The battery hoist 400 has its top end connected to the other end of the rotary joint 320. The battery hoist 400 is used to hold the battery 210. The rotary joint 320 can be rotated at any angle so that the working range of the battery hoist 400 covers all battery positions 200.

[0045] Understandably, by setting up a base 100 with guide rails 110 and mounting seats 120, and arranging multiple battery positions 200 on both sides of the guide rails 110, the robot 300 can move horizontally over long distances along the quay shoreline, while also adapting to changes in the slope of the quay or deck. By using the robot 300 and battery lifting device 400, instead of the bridge crane and manual operation used in the prior art, the robot 300 combined with the battery lifting device 400 can conveniently and quickly transfer the battery 210, achieving high positioning accuracy for the battery 210, improving the transfer efficiency of the battery 210, saving the time spent on battery swapping, and significantly improving the operational efficiency of the vessel.

[0046] In this embodiment, the battery transfer system 010 includes a base 100.

[0047] The base 100 is provided with a guide rail 110 and a mounting seat 120 that is slidably connected to the guide rail 110. Multiple battery slots 200 for storing batteries 210 are provided on both sides of the guide rail 110.

[0048] In this embodiment, please refer to Figure 2 and Figure 3 The base 100 includes two first guide rails 111, a second guide rail 112 and a drive roller. The first guide rails 111 and the second guide rail 112 are both arranged along the X-axis direction. The second guide rail 112 is located in the middle of the two first guide rails 111. The bottom of the mounting base 120 is provided with a slider 121 that is slidably connected to the two first guide rails 111.

[0049] The mounting base 120 has a drive roller at its bottom, which is slidably mounted in the second guide rail 112. The drive roller drives the mounting base 120 to move along the first guide rail 111.

[0050] The bottom of the mounting base 120 is equipped with a servo motor, and the output end of the servo motor is connected to the drive roller.

[0051] Understandably, the servo motor drives the drive roller to move along the first guide rail 111, which in turn causes the drive roller to move the mounting base 120 along the first guide rail 111. The base 100, constructed of high-strength steel, is capable of long-distance horizontal movement along the wharf shoreline, with a travel distance of ≥10 meters. The base 100 integrates an anti-tipping structure and is equipped with a hydraulic leveling device at the bottom to adapt to changes in the wharf slope.

[0052] In this embodiment, please refer to Figure 2 Multiple battery positions 200 are arranged sequentially along both sides of the guide rail 110, and batteries 210 are placed on the battery positions 200. Among them, the battery 210 is provided with a frame 220, and the battery 210 with the frame 220 is convenient for transfer with the battery hoist 400.

[0053] In this embodiment, the battery transfer system 010 includes a robot 300.

[0054] In this embodiment, please refer to Figure 4 The robot 300 includes a body 310 and a rotary joint 320. The body 310 is mounted on the mounting base 120 to allow the robot 300 to move along the guide rail 110. One end of the rotary joint 320 is rotatably connected to the body 310. The top of the battery hoist 400 is connected to the other end of the rotary joint 320. The rotary joint 320 can rotate at any angle so that the working range of the battery hoist 400 covers all battery positions 200.

[0055] In this embodiment, please refer to Figure 4The rotating joint 320 includes a first rotating joint 321 and a second rotating joint 322. The body 310 is rotatably connected to one end of the first rotating joint 321, the other end of the first rotating joint 321 is rotatably connected to one end of the second rotating joint 322, and the other end of the second rotating joint 322 is connected to the battery hanger 400.

[0056] The main body 310 has a clearance groove in the middle, and one end of the first rotary joint 321 is set in the clearance groove through a drive unit; the second rotary joint 322 is located above the first rotary joint 321, and the other end of the first rotary joint 321 is rotatably connected to one end of the second rotary joint 322 through a drive unit. Both drive units can be harmonic reducers and high-torque servo motors.

[0057] It is understood that the fully extended length of the first rotating joint 321 and the second rotating joint 322 is ≥6 meters, and the full extension of the first rotating joint 321 and the second rotating joint 322 allows the working range of the battery hoist 400 to cover all battery positions 200; at the same time, this arrangement of the rotating joint 320 has a better load capacity. The full extension of the first rotating joint 321 and the second rotating joint 322 can be understood as the first rotating joint 321 and the second rotating joint 322 rotating until they are on the same axis.

[0058] In this embodiment, please refer to Figure 4 The robot 300 also includes a lifting shaft 330, one end of which is connected to the other end of the second rotary joint 322 of the rotary joint 320, so that the lifting shaft 330 can move up and down along the Z-axis. The other end of the lifting shaft 330 is rotatably connected to the rotary joint 320, and the rotation angle of the lifting shaft 330 is +180° to -180°.

[0059] The second rotary joint 322 has a drive unit at its top, and a lifting shaft 330 passes through the bottom of the second rotary joint 322 and is connected to the drive unit for transmission. This allows the drive unit to move the lifting shaft 330 up or down or rotate along the Z-axis. It can be understood that when the drive unit moves the lifting shaft 330 up or down along the Z-axis, the lifting shaft 330 will move the battery lifting device 400 up or down; when the drive unit rotates the lifting shaft 330, the lifting shaft 330 will rotate the battery lifting device 400. This arrangement allows for precise positioning and clamping of the battery 210 by the battery lifting device 400.

[0060] Among them, the vertical lifting stroke of the lifting shaft 330 is ≥ 1.3 times the height of the battery 210.

[0061] Among them, the vertical lifting stroke of the lifting shaft 330 is ≥3 meters.

[0062] Optionally, an anti-corrosion coating can be applied to the surface of the robot 300 to make it more adaptable to humid environments.

[0063] Understandably, the robot 300 can rotate the first rotary joint 321 and the second rotary joint 322 to move the battery hoist 400 above the target battery position 200. The robot 300 can lower the lifting shaft 330 to lower the battery hoist 400 onto the target battery position 200. After the battery hoist 400 grasps the battery 210 from the target battery position 200, the robot 300 can raise the lifting shaft 330 to lift and transfer the battery 210. The robot 300 can also rotate the lifting shaft 330 to engage the battery hoist 400 with the frame 220 on the battery 210, enabling the battery hoist 400 to grasp the battery 210.

[0064] In this embodiment, the battery transfer system 010 includes a battery hoist 400.

[0065] Among them, the battery hoist 400 is used to hold the battery 210.

[0066] In this embodiment, please refer to Figure 5 and Figure 6 The battery lifting device 400 includes a lifting device body 410 and a first hook 420 and a second hook 430 disposed at the bottom of the lifting device body 410. A connecting part 411 is disposed at the top of the lifting device body 410. The other end of the rotating joint 320 is connected to the connecting part 411. The first hook 420 and the second hook 430 can rotate and hook the frame 220 structure of the battery 210.

[0067] The connecting part 411 at the top of the lifting device body 410 is equipped with a connecting flange, and the connecting part 411 is rigidly connected to the flange at the end of the lifting shaft 330 of the robot 300 through the connecting flange.

[0068] In this embodiment, please refer to Figure 5 The battery lifting device 400 also includes a drive unit 440, a moving rod 450, a first rotating rod 460, and a second rotating rod 470. The first rotating rod 460 and the second rotating rod 470 are rotatably mounted on the lifting device body 410 and vertically penetrate the lifting device body 410. The bottom of the first rotating rod 460 is connected to the first hook 420, and the top of the first rotating rod 460 is eccentrically connected to one end of the moving rod 450. The bottom of the second rotating rod 470 is connected to the second hook 430, and the top of the second rotating rod 470 is eccentrically connected to both ends of the moving rod 450. The drive unit 440 is mounted on the top of the lifting device body 410, and the output shaft 441 of the drive unit 440 is rotatably connected to the moving rod 450. The drive unit 440 is used to drive the first hook 420 and the second hook 430 to rotate.

[0069] In this configuration, the first hook 420 and the second hook 430 are initially positioned facing either the left or right side of the lifting device body 410, and the first hook 420 and the second hook 430 are parallel to each other; please refer to... Figure 6 The first hook 420 is in the open state facing the front of the lifting device body 410; the second hook 430 is in the open state facing the rear of the lifting device body 410.

[0070] The drive component 440 is provided with a connecting rod, which is hinged to the output shaft 441 of the drive component 440.

[0071] Understandably, the drive member 440 extends from the output shaft 441, and the output shaft 441 drives the first rotating rod 460 and the second rotating rod 470 to rotate eccentrically simultaneously via the drive member 440. The eccentric rotation of the first rotating rod 460 causes the first hook 420 to rotate from its initial state to face the front of the lifting device body 410; the eccentric rotation of the second rotating rod 470 causes the second hook 430 to rotate from its initial state to face the rear of the lifting device body 410. Simultaneously, the eccentric rotation of the first rotating rod 460 and the second rotating rod 470 causes the first hook 420 and the second hook 430 to respectively hook onto different upper beams of the battery 210 frame 220, thereby achieving reliable hooking and positioning with the battery 210. Conversely, when the drive unit 440 retracts the output shaft 441, the first hook 420 and the second hook 430 retract, achieving reliable separation of the battery hoist 400 from the upper frame 220 of the battery 210, allowing the battery hoist 400 to leave the battery 210.

[0072] In this embodiment, a positioning detection switch 490 is provided on the top of the lifting device body 410. The positioning detection switch 490 is used to detect whether the first hook 420 and the second hook 430 are in the open state. A contact rod is provided on the top of the first rotating rod 460 and / or the second rotating rod 470. When the first hook 420 and the second hook 430 are in the open state, the contact rod contacts the positioning detection switch 490. By contacting the positioning detection switch 490 with the contact rod, it can be determined whether the first hook 420 and the second hook 430 are fully opened.

[0073] In this embodiment, a visual positioning camera 480 is located at the bottom of the lifting device body 410. The visual positioning camera 480 is used to provide positioning data for the battery 210. This arrangement can further improve the positioning accuracy of the battery lifting device 400 for the battery 210, achieving precise alignment of the battery 210.

[0074] In this embodiment, two sets of first hooks 420 and second hooks 430 are provided. The two sets of first hooks 420 and second hooks 430 are located at both ends of the lifting device body 410, respectively. One set of first hooks 420 and second hooks 430 is located on the left side of the lifting device body 410, and the other set of first hooks 420 and second hooks 430 is located on the right side of the lifting device body 410. The first hooks 420 and second hooks 430 are arranged opposite to each other. Each set of first hooks 420 and second hooks 430 is equipped with a drive component 440, a moving rod 450, a first rotating rod 460, a second rotating rod 470, and a position detection switch 490.

[0075] The working principle and process of the battery transfer system 010 provided in this embodiment of the present invention are as follows:

[0076] The battery swapping process includes loading fully charged batteries 210 onto the ship or recycling undercharged batteries 210.

[0077] Please refer to Figure 1 The process of loading a fully charged battery 210 onto the ship is as follows: The base 100 moves the robot 300 closer to the shore. The robot 300 then moves the battery hoist 400 to the battery position 200 on the shore. The battery hoist 400 identifies and positions the battery 210 using a visual positioning camera 480. After visual positioning is complete, the battery hoist 400 extends its first hook 420 and second hook 430 to hook and lock the battery 210 in place. The robot 300 raises its lifting shaft 330 to lift the battery 210 to a safe height. The robot 300 then moves synchronously towards the ship along the planned path of the guide rail 110. After the robot 300 reaches the ship, it rotates and adjusts the posture of the battery hoist 400 and the battery 210, embedding the battery 210 into the ship's battery compartment 011. The battery hoist 400 retracts its first hook 420 and second hook 430 to release the battery 210. The battery transfer system 010 completes the transfer of the fully charged battery 210 onto the ship.

[0078] The process of recovering the undercharged battery 210: The robot 300 operates, and the battery lifting device 400 identifies and locates the battery 210 using a visual positioning camera 480 and grabs the depleted battery 210 from the ship. The robot 300 raises its lifting shaft 330 to lift the battery 210 to a safe height. The base 100 moves the robot 300 closer to the shore. After reaching the shore, the robot 300 places the battery 210 in the designated recovery area. The battery lifting device 400 retracts its first hook 420 and second hook 430 to release the battery 210. The battery transfer system 010 has completed the recovery of the undercharged battery 210.

[0079] In summary, the battery transfer system 010 provided in this embodiment of the present invention, by setting a base 100 with a guide rail 110 and a mounting seat 120, allows multiple battery positions 200 to be arranged on both sides of the guide rail 110. This enables the robot 300 to move horizontally over long distances along the quay shoreline, while also allowing the robot 300 to adapt to changes in the slope of the quay or deck. By setting up the robot 300 and the battery lifting device 400, instead of the bridge crane and manual operation used in the prior art, the robot 300 combined with the battery lifting device 400 can conveniently and quickly transfer the battery 210 with high positioning accuracy, thus improving the transfer efficiency of the battery 210. At the same time, the time consumed by a single battery swap in the prior art is at least 30 minutes, while the battery transfer system 010 of this application has a single battery swap time of ≤3 minutes, saving the time consumed by battery swapping and significantly improving the operating efficiency of the ship.

[0080] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A battery transfer system, characterized in that, include: The base is provided with a guide rail and a mounting seat that is slidably connected to the guide rail. Multiple battery slots are provided on both sides of the guide rail. A robot, comprising a body and a rotary joint, wherein the body is disposed on the mounting base to enable the robot to move along the guide rail, and one end of the rotary joint is rotatably connected to the body; A battery holder, the top of which is connected to the other end of the rotary joint, the battery holder being used to hold the battery, the rotary joint rotating at any angle so that the working range of the battery holder covers all the battery positions.

2. The battery transfer system according to claim 1, characterized in that, The rotating joint includes a first rotating joint and a second rotating joint. The body is rotatably connected to one end of the first rotating joint, the other end of the first rotating joint is rotatably connected to one end of the second rotating joint, and the other end of the second rotating joint is connected to the battery hoist.

3. The battery transfer system according to claim 2, characterized in that, The first and second rotating joints have a fully extended length of ≥6 meters, and the first and second rotating joints are fully extended so that the working range of the battery hoist covers all the battery positions.

4. The battery transfer system according to claim 1, characterized in that, The robot also includes a lifting axis, one end of which is connected to the other end of the rotary joint so that the lifting axis can move up and down along the Z-axis.

5. The battery transfer system according to claim 4, characterized in that, The vertical lifting stroke of the lifting shaft is ≥ 1.3 times the height of the battery; The vertical lifting stroke of the lifting shaft is ≥3 meters.

6. The battery transfer system according to claim 4, characterized in that, The lifting shaft is rotatably connected to the other end of the rotating joint, and the rotation angle of the lifting shaft is +180° to -180°.

7. The battery transfer system according to claim 1, characterized in that, The base includes two first guide rails, a second guide rail, and a drive roller. The first and second guide rails are both arranged along the X-axis direction. The second guide rail is located in the middle of the two first guide rails. The bottom of the mounting base is provided with a slider that is slidably connected to the two first guide rails. The bottom of the mounting base is provided with a drive roller that rolls and slides within the second guide rail. The drive roller drives the mounting base to move along the first guide rail.

8. The battery transfer system according to claim 1, characterized in that, The battery lifting device includes a lifting device body and a first hook and a second hook disposed at the bottom of the lifting device body. A connecting part is provided at the top of the lifting device body, and the other end of the rotating joint is connected to the connecting part. The first hook and the second hook are rotatable and can hook the frame structure of the battery.

9. The battery transfer system according to claim 8, characterized in that, The battery hoist also includes a drive unit, a moving rod, a first rotating rod, and a second rotating rod, wherein the first rotating rod and the second rotating rod are rotatably mounted on the hoist body and vertically penetrate the hoist body; The bottom of the first rotating rod is connected to the first hook, and the top of the first rotating rod is eccentrically connected to one end of the moving rod. The bottom of the second rotating rod is connected to the second hook, and the top of the second rotating rod is eccentrically connected to both ends of the moving rod. The driving component is disposed on the top of the lifting device body, and the output shaft of the driving component is rotatably connected to the moving rod. The driving component is used to drive the first hook and the second hook to rotate.

10. The battery transfer system according to claim 9, characterized in that, A visual positioning camera is installed at the bottom of the lifting device body, and the visual positioning camera is used to provide positioning data of the battery; And / or, the top of the lifting device body is provided with a positioning detection switch, which is used to detect whether the first hook and the second hook are in the open state. The top of the first rotating rod and / or the second rotating rod is provided with a contact rod, which contacts the positioning detection switch when the first hook and the second hook are in the open state.

Images