Forklift battery flexible replacement device and method of operation thereof

Abstract

The application discloses a flexible replacement device for a forklift battery and an operating method thereof, and belongs to the field of forklift battery replacement devices. The device comprises a bracket, a transmission device, a push-pull device, and a transmission frame. The transmission device comprises a transmission frame arranged on the bracket and a roller rotatably arranged on the transmission frame. The push-pull device comprises a guide rail arranged on the bracket, a push-pull plate slidably arranged on the guide rail, a locking mechanism for locking a handle of the battery, a moving execution mechanism for driving the push-pull plate to move along the guide rail, a cover arranged on the push-pull plate, a rotating shaft rotatably arranged in the cover, guide blocks slidably arranged at two ends of the cover, a connecting rod for hingedly connecting the guide blocks and the rotating shaft, and a steering execution mechanism for driving the rotating shaft to rotate. The two ends of the cover are provided with guide holes, and the guide blocks are slidably arranged in the guide holes. The application makes the replacement process of the battery smooth and reduces the labor operation cost. For customers with many forklifts, a whole battery replacement station can be formed, and the device has high flexibility, good adaptability and low labor cost.

Description

Technical Field

[0001] This invention relates to the field of forklift battery technology, and in particular to a flexible battery replacement device for forklifts and its operating method. Background Technology

[0002] Battery-powered forklifts, as environmentally friendly vehicles, have been applied across various industries and are showing a strong trend of replacing internal combustion engines. However, the power source for electric vehicles has a shorter range compared to internal combustion engines, and the long charging time after parking affects work efficiency. To enable continuous operation of electric vehicles, the most common solution is to use battery swapping devices to replace batteries and shorten vehicle downtime. Currently, existing battery swapping devices on the market have significant limitations. They require dedicated batteries for pairing, making it difficult for users with a large number of vehicles to form a unified battery swapping station. Each swapping device operates independently, resulting in poor compatibility.

[0003] For example, Chinese Patent Publication No. CN110654352A, published on January 7, 2020, entitled "An Automatic Battery Replacement Device for an Electric Forklift", includes a transfer frame and a row of rollers installed on the top surface of the transfer frame. A lead screw is horizontally installed on one side of the transfer frame and a guardrail is detachably installed on the other side. The lead screw is connected to the output shaft of the motor. The rollers are movably installed on the transfer frame through a roller frame.

[0004] The drawbacks of existing patents are: the existing battery replacement device adopts a side-pull structure, which requires a special battery for matching. The side-pull structure has high requirements for the height of the battery, the structure of the battery handle, and manual operation. During the battery replacement process, problems such as displacement and jamming are prone to occur, which can damage the replacement device. Summary of the Invention

[0005] The purpose of this invention is to address the problems of existing battery replacement devices that use a side-pull structure, require specialized batteries for pairing, and place high demands on battery height, battery handle structure, and manual operation. Furthermore, these side-pull structures are prone to misalignment and jamming during battery replacement, leading to damage to the replacement device. This invention provides a flexible battery replacement device for forklifts and its operating method, which can be used to replace batteries of different specifications. The battery replacement process is smooth and reduces manual operation costs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flexible battery swapping device for forklifts includes:

[0008] bracket;

[0009] The transmission device includes a transmission frame mounted on a bracket and a roller rotatably mounted on the transmission frame.

[0010] The push-pull device includes a guide rail mounted on a bracket, a push-pull plate slidably mounted on the guide rail, a locking mechanism for locking the battery handle, and a moving actuator for driving the push-pull plate to move along the guide rail. The locking mechanism includes a cover mounted on the push-pull plate, a rotating shaft rotatably mounted inside the cover, guide blocks slidably mounted at both ends of the cover, a connecting rod for hinged connection between the guide blocks and the rotating shaft, and a steering actuator for driving the rotating shaft to rotate. Guide holes are provided at both ends of the cover, and the guide blocks are slidably mounted within the guide holes. This forklift battery flexible replacement device is applicable to batteries of any size. The locking mechanism also includes a handle bolted to the outer wall of the battery, with the guide blocks engaging the handle, and the handle and guide blocks corresponding one-to-one. The locking mechanism locks to the lower middle position of the side wall of the battery, making the battery replacement process smooth. The locking mechanism is operated by the steering actuator, eliminating the need for manual locking of the locking mechanism to the battery, thus reducing manual operation costs. For customers with a large number of vehicles, a complete battery swapping station can be formed, using a single battery swapping machine to replace batteries of different specifications. This offers high flexibility, good adaptability, and low labor costs, avoiding the problems of jamming, misalignment, and damage to the battery casing caused by existing side-pull structures. It increases economic costs, reduces space occupation, and facilitates material management.

[0011] Preferably, the bracket has a top block and a limiting mechanism at the end facing the battery. The limiting mechanism includes a hook plate rotatably mounted at the battery-facing end of the bracket, a hook mounted on the hook plate, and a first contact switch mounted on the bracket. The hook plate has a limiting block that cooperates with the first contact switch. The top block has a sensing device, and the limiting mechanism also includes a drive motor for rotating the hook plate. The sensing device and the drive motor are controlled by an execution control system.

[0012] Preferably, the bracket has a handle on the end opposite to the battery, and baffles on both sides of the bracket along the direction of battery movement. A caster wheel mounting plate is provided on the outer wall of each baffle, and casters are mounted on the caster wheel mounting plate. The height of the bracket can be adjusted by adjusting the height of the casters, depending on the frame size.

[0013] Preferably, the mobile actuator includes a roller bracket mounted on a support, a roller rotatably mounted on the roller bracket, and a chain sleeved on the roller. The lower end of the push-pull plate has a mounting portion mounted on the chain. The mobile actuator also includes a traction motor for driving the roller to rotate and an electromagnetic brake located outside the traction motor. The electromagnetic brake is used to engage the traction motor.

[0014] Preferably, the guide rail is provided with a guide groove, the mounting part of the push-pull plate passes through the guide groove, a second contact switch is provided at the end of the guide groove facing the battery, and a third contact switch is provided at the end of the guide groove facing the opposite side of the battery. The mounting part of the push-pull plate is located between the second contact switch and the third contact switch. The guide groove serves a guiding function and is distributed along the direction of battery movement.

[0015] Preferably, the central axis of the rollers is perpendicular to the direction of battery movement, and the rollers are sequentially distributed along the direction of battery movement, located on both sides of the push-pull device. The rollers are used to transport the battery and reduce friction at the bottom of the battery.

[0016] Preferably, the locking mechanism further includes a fourth contact switch and a fifth contact switch disposed within the housing. The fourth contact switch is located above the rotating shaft and engages with the rotating shaft in a vertical position; the fifth contact switch is located below the rotating shaft and engages with the rotating shaft in a horizontal position. Both the fourth and fifth contact switches are connected to the execution control system.

[0017] Preferably, there are two guide blocks, and the rotating shaft is located between the two guide blocks. Either end of the rotating shaft is hinged to an adjacent guide block via a connecting rod. When the locking mechanism engages with the outer wall of the battery, the cover is positioned between the handles, and the guide blocks are inserted into the handles. This ensures even tension on the battery and extends the service life of the locking mechanism.

[0018] Preferably, there are two limiting mechanisms, with the top block located between the two limiting mechanisms. The limiting mechanism is used to limit the battery on the bracket.

[0019] An operating method for a forklift battery flexible replacement device, used in any one of the forklift battery flexible replacement devices described above, comprises the following steps:

[0020] Step 1: The replacement machine is paired with forklifts of different tonnage heights by adjusting the height of the casters. When the top block hits the frame, the hook plate in the rotating limit mechanism is rotated so that the hook is engaged in the slot at the bottom of the frame, thus fixing the replacement machine to the frame.

[0021] Step 2: When the hook is engaged in the slot at the bottom of the frame, the limit block simultaneously triggers the first contact switch, the power supply to the replacement machine is turned on, the moving actuator is energized, and the push-pull plate is driven to move towards the battery; if any hook is not engaged, or one contact switch is not in contact, the moving actuator cannot be powered on.

[0022] Step 3: The moving actuator moves the push-pull plate to the battery handle via the chain and aligns it with the battery handle. After the push-pull plate is in place, the second contact switch is triggered. When the second contact switch is triggered, the moving actuator stops and becomes ineffective. At the same time, the steering actuator in the locking mechanism is energized. The steering actuator drives the guide block to engage in the battery handle through the shaft and connecting rod to perform the locking action. After the locking action is completed, the shaft triggers the fifth contact switch. At this time, the steering actuator stops and becomes ineffective, the moving actuator is energized, and the moving actuator drives the push-pull plate to pull out the battery.

[0023] Step 4: When the push-pull plate triggers the third contact switch, the battery is completely pulled out of the frame. At this time, the hook that is locked into the frame is pushed out of the frame, the first contact switch is disconnected from the limit block, the replacement machine disconnects the power, the electromagnetic brake engages to prevent the battery from sliding, and the hook plate rotates to limit the battery on the bracket.

[0024] Therefore, the present invention has the following beneficial effects: the structure makes the battery replacement process smooth and reduces the cost of manual operation; for customers with many vehicles, it can form an integrated battery swapping station, and different specifications of batteries can be replaced with one battery swapping machine, which is highly flexible, adaptable, and has low labor costs, avoiding the problems of jamming, displacement, and squeezing damage to the battery casing that exist in the existing side-pull structure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of one structure of the present invention.

[0026] Figure 2 This is a schematic diagram of a structure in this invention that eliminates the push-pull device.

[0027] Figure 3 This is a schematic diagram of one type of limiting mechanism in this invention.

[0028] Figure 4 This is a schematic diagram of one structure of the push-pull device in this invention.

[0029] Figure 5 This is a schematic diagram of the locking state of the locking mechanism in this invention.

[0030] Figure 6 This is a schematic diagram of the unlocked state of the locking mechanism in this invention.

[0031] Figure 7 This is a schematic diagram of the structure of the present invention and the battery in a locked state.

[0032] Figure 8 This is a schematic diagram of the locking mechanism and the battery in a locked state in this invention.

[0033] Figure 9This is a schematic diagram of a structure in which the battery is completely pulled out according to the present invention.

[0034] As shown in the picture:

[0035] Bracket 1

[0036] 2. Transmission frame; 3. Roller; 4. Guide rail.

[0037] 5. Sliding panel, 5.1. Mounting part

[0038] Locking mechanism 6, cover 6.1, rotating shaft 6.2, guide block 6.3, connecting rod 6.4, steering actuator 6.5,

[0039] 7. Moving actuator, 7.1 roller bracket, 7.2 roller, 7.3 chain, 7.4 traction motor, 7.5 electromagnetic brake.

[0040] Top block 8

[0041] Limiting mechanism 9, hook plate 9.1, hook 9.2, first contact switch 9.3, limit block 9.4,

[0042] 10. Handrail; 11. Baffle; 12. Caster wheel mounting plate; 13. Caster wheel.

[0043] Second contact switch 14, third contact switch 15, fourth contact switch 16, fifth contact switch 17

[0044] 18. Battery; 19. Handle. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0046] Example 1, as Figures 1 to 9 A flexible battery replacement device for a forklift, as shown, includes: a bracket 1; a transmission device, which includes a transmission frame 2 mounted on the bracket 1 and a roller 3 rotatably mounted on the transmission frame 2; and a push-pull device, which includes a guide rail 4 mounted on the bracket 1, a push-pull plate 5 slidably mounted on the guide rail 4, a locking mechanism 6 for locking the handle 19 of the battery 18, and a moving actuator 7 for driving the push-pull plate 5 to move along the guide rail 4. The locking mechanism 6 includes a cover 6.1 mounted on the push-pull plate 5, a rotating shaft 6.2 rotatably mounted inside the cover 6.1, guide blocks 6.3 slidably mounted at both ends of the cover 6.1, a connecting rod 6.4 for hinged connection between the guide blocks 6.3 and the rotating shaft 6.2, and a steering actuator 6.5 for driving the rotating shaft 6.2 to rotate. Guide holes are provided at both ends of the cover, and the guide blocks 6.3 are slidably mounted in the guide holes.

[0047] The flexible battery swapping device for forklifts described in the above embodiment is suitable for batteries 18 of any specification. The locking mechanism 6 also includes a handle 19 bolted to the outer wall of the battery 18, with guide blocks 6.3 inserted into the handle 19. The handle 19 and guide blocks 6.3 correspond one-to-one. The locking mechanism 6 locks to the lower middle position of the side wall of the battery 18, ensuring a smooth battery swapping process. The locking mechanism 6 is operated by a steering actuator 6.5, eliminating the need for manual locking of the mechanism 6 to the battery 18, thus reducing manual operation costs. For customers with many vehicles, a complete battery swapping station can be formed, using a single battery swapping machine to replace batteries 18 of different specifications. This offers high flexibility, good adaptability, and low labor costs, avoiding the problems of jamming, misalignment, and damage to the battery 18 casing caused by existing side-pull structures. This reduces operating costs, minimizes space occupation, and facilitates material management. The invention solves the problem that the existing battery replacement device adopts a side-pull structure, which requires a special battery 18 for matching. The side-pull structure has high requirements for the height of the battery 18, the structure of the battery 18 handle 19, and manual operation. The battery 18 is prone to displacement and jamming during the replacement process, which can damage the replacement device.

[0048] Furthermore, such as Figure 1 , Figure 2 , Figure 3 As shown, the bracket 1 has a top block 8 and a limiting mechanism 9 at the end facing the battery 18. The limiting mechanism 9 includes a hook plate 9.1 rotatably mounted at the end of the bracket 1 facing the battery 18, a hook 9.2 mounted on the hook plate 9.1, and a first contact switch 9.3 mounted on the bracket 1. The hook plate 9.1 has a limiting block 9.4 that cooperates with the first contact switch 9.3. The top block 8 is equipped with a sensing device, and the limiting mechanism 9 also includes a drive motor for rotating the hook plate 9.1. The sensing device and the drive motor are controlled by an execution control system.

[0049] Furthermore, such as Figure 1 , Figure 2 , Figure 3 As shown, the bracket 1 has a handle 10 at the end opposite to the battery 18. Both sides of the bracket 1 along the direction of movement of the battery 18 are provided with baffles 11. A caster wheel mounting plate 12 is provided on the outer wall of the baffle 11, and casters 13 are provided on the caster wheel mounting plate 12. The height of the bracket 1 can be adjusted by adjusting the height of the casters 13 according to different frame specifications.

[0050] Furthermore, such as Figure 2As shown, the moving actuator 7 includes a bracket 7.1 mounted on the bracket 1, a roller 7.2 rotatably mounted on the bracket 7.1, and a chain 7.3 sleeved on the roller 7.2. The lower end of the push-pull plate 5 has a mounting part 5.1, which is mounted on the chain 7.3. The moving actuator 7 also includes a traction motor 7.4 for driving the roller 7.2 to rotate, and an electromagnetic brake 7.5 located outside the traction motor 7.4. The electromagnetic brake 7.5 is used to engage the traction motor 7.4 to prevent the battery 18 from shifting or slipping.

[0051] Furthermore, such as Figure 1 , Figure 4 As shown, the guide rail 4 is provided with a guide groove, and the mounting part 5.1 of the push-pull plate 5 passes through the guide groove. A second contact switch 14 is provided at one end of the guide groove facing the battery 18, and a third contact switch 15 is provided at the opposite end of the guide groove facing the battery 18. The mounting part 5.1 of the push-pull plate 5 is located between the second contact switch 14 and the third contact switch 15. The guide groove serves as a guide and is distributed along the moving direction of the battery 18.

[0052] Furthermore, such as Figure 1 As shown, the central axis of the rollers 3 is perpendicular to the direction of movement of the battery 18. The rollers 3 are distributed sequentially along the direction of movement of the battery 18, and are located on both sides of the push-pull device. The rollers 3 are used to transport the battery 18 and reduce friction at the bottom of the battery 18.

[0053] Furthermore, such as Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the locking mechanism 6 also includes a fourth contact switch 16 and a fifth contact switch 17 disposed within the housing 6.1. The fourth contact switch 16 is located above the rotating shaft 6.2 and engages with the rotating shaft 6.2 when it is in a vertical position. The fifth contact switch 17 is located below the rotating shaft 6.2 and engages with the rotating shaft 6.2 when it is in a horizontal position. Both the fourth contact switch 16 and the fifth contact switch 17 are connected to the execution control system.

[0054] Furthermore, there are two guide blocks 6.3, and a rotating shaft 6.2 is located between the two guide blocks 6.3. Either end of the rotating shaft 6.2 is hinged to the adjacent guide block 6.3 via a connecting rod 6.4. When the locking mechanism 6 engages with the outer wall of the battery 18, the cover 6.1 is positioned between the handles 19, and the guide blocks 6.3 are inserted into the handles 19 respectively. This ensures that the battery 18 is evenly stretched, extending the service life of the locking mechanism 6. There are two limiting mechanisms 9, and a top block 8 is located between the two limiting mechanisms 9. The limiting mechanisms 9 are used to limit the battery 18 on the bracket 1.

[0055] Example 2, as Figures 1 to 9The method of operating a flexible battery replacement device for forklifts, as shown in Embodiment 1, includes the following steps:

[0056] Step 1: The replacement machine is paired with forklifts of different tonnage heights by adjusting the height of the casters 13. When the top block 8 hits the frame, the hook plate 9.1 in the rotating limit mechanism 9 is rotated so that the hook 9.2 is engaged in the slot at the bottom of the frame, and the replacement machine is fixed to the frame.

[0057] Step 2: When hook 9.2 is engaged in the slot at the bottom of the frame, limit block 9.4 simultaneously triggers first contact switch 9.3, powering on the replacement machine, energizing the moving actuator 7, and driving the push-pull plate 5 to move toward the battery 18; if any hook 9.2 is not engaged, or one contact switch is not in contact, the moving actuator 7 cannot be powered on.

[0058] Step 3: The moving actuator 7 moves the push-pull plate 5 to the battery 18 handle 19 via the chain 7.3 and aligns it with the battery 18 handle 19. After the push-pull plate 5 is in place, the second contact switch 14 is triggered. When the second contact switch 14 is triggered, the moving actuator 7 stops and becomes ineffective. At the same time, the steering actuator 6.5 in the locking mechanism 6 is energized. The steering actuator 6.5 drives the guide block 6.3 to engage in the battery 18 handle 19 via the rotating shaft 6.2 and the connecting rod 6.4 to perform the locking action. After the locking action is in place, the rotating shaft 6.2 triggers the fifth contact switch 17. At this time, the steering actuator 6.5 stops and becomes ineffective, the moving actuator 7 is energized, and the moving actuator 7 drives the push-pull plate 5 to pull out the battery 18.

[0059] Step 4: When the push-pull plate 5 triggers the third contact switch 15, the battery 18 is completely pulled out of the frame. At this time, the hook 9.2 that is locked into the frame is pushed out of the frame, the first contact switch 9.3 and the limit block 9.4 are disconnected, the replacement machine disconnects the power, the electromagnetic brake 7.5 is engaged to prevent the battery 18 from sliding, and the hook plate 9.1 rotates to limit the battery 18 on the bracket 1.

[0060] Example 3, as Figures 1 to 9 The method of operating a flexible battery replacement device for forklifts, as shown in Embodiment 1, includes the following steps:

[0061] Step 1: The replacement machine is paired with forklifts of different tonnage heights by adjusting the height of the casters 13. When the top block 8 hits the frame, the hook plate 9.1 in the rotating limit mechanism 9 is rotated so that the hook 9.2 is engaged in the slot at the bottom of the frame, and the replacement machine is fixed to the frame.

[0062] Step 2: When hook 9.2 is engaged in the slot at the bottom of the frame, limit block 9.4 simultaneously triggers the first contact switch 9.3, the power supply of the replacement machine is turned on, the moving actuator 7 is energized, and the push-pull plate 5 is driven to push the battery 18 toward the frame; if any hook 9.2 is not engaged, or one contact switch is not in contact, the moving actuator 7 cannot be powered on.

[0063] Step 3: When the mounting part 5.1 of the push-pull plate 5 triggers the second contact switch 14, the traction motor 7.4 stops and becomes ineffective, and the steering actuator 6.5 of the locking mechanism 6 is energized. At this time, the locking mechanism 6 and the battery handle 19 are unlocked. After unlocking, the rotating shaft 6.2 triggers the fifth contact switch 17, and the unlocking action of the steering actuator 6.5 stops and becomes ineffective. At this time, the hook plate 9.1 is rotated so that the hook 9.2 is disengaged from the frame, the first contact switch 9.3 is disconnected from the limit block 9.4, and the traction motor 7.4 is de-energized.

[0064] The specific embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the invention. All equivalent variations made in accordance with the shape and structure of the present invention should be included within the scope of protection of the present invention.

Claims

1. A flexible battery replacement device for forklifts, characterized in that, include: bracket; The transmission device includes a transmission frame placed on a bracket and a roller rotating on the transmission frame; The push-pull device includes a guide rail placed on a bracket, a push-pull plate sliding on the guide rail, a locking mechanism for locking the battery handle, and a moving actuator for driving the push-pull plate to move along the guide rail. The locking mechanism includes a cover placed on the push-pull plate, a fourth contact switch and a fifth contact switch placed inside the cover, a rotating shaft rotating inside the cover, guide blocks sliding at both ends of the cover, a connecting rod that hinges the guide blocks and the rotating shaft, and a steering actuator for rotating the rotating shaft. Guide holes are provided at both ends of the cover, and the guide blocks slide in the guide holes. The bracket is provided with a top block and a limiting mechanism at the end facing the battery. The limiting mechanism includes a hook plate that rotates at the end of the bracket facing the battery, a hook placed on the hook plate, and a first contact switch placed on the bracket. The hook plate is provided with a limiting block that cooperates with the first contact switch. The mobile actuator includes a roller bracket placed on a bracket, a roller rotating on the roller bracket, and a chain sleeved on the roller. The lower end of the push-pull plate is provided with a mounting part, which is placed on the chain. The mobile actuator includes a traction motor that rotates the roller. The guide rail is provided with a guide groove, the push-pull plate mounting part passes through the guide groove, a second contact switch is provided at the end of the guide groove facing the battery, a third contact switch is provided at the end of the guide groove facing the opposite end of the battery, a fourth contact switch is located above the rotating shaft and cooperates with the rotating shaft when it is vertical, and a fifth contact switch is located below the rotating shaft and cooperates with the rotating shaft when it is horizontal.

2. The flexible battery replacement device for forklifts according to claim 1, characterized in that, The bracket is provided with a handrail at the end opposite to the battery. The bracket is provided with baffles on both sides along the direction of battery movement. The outer wall of the baffle is provided with a caster wheel mounting plate, and the caster wheel mounting plate is provided with caster wheels.

3. The flexible battery replacement device for forklifts according to claim 2, characterized in that, The mobile actuator also includes an electromagnetic brake located outside the traction motor.

4. The flexible battery replacement device for forklifts according to claim 3, characterized in that, The mounting part of the push-pull plate is located between the second contact switch and the third contact switch.

5. A flexible battery replacement device for forklifts according to claim 1, 2, 3, or 4, characterized in that, The central axis of the rollers is perpendicular to the direction of movement of the battery, and the rollers are distributed sequentially along the direction of movement of the battery. The rollers are located on both sides of the push-pull device.

6. A flexible battery replacement device for forklifts according to claim 4, characterized in that, There are two guide blocks, and the rotating shaft is located between the two guide blocks. Either end of the rotating shaft is hinged to the adjacent guide block through a connecting rod.

7. A flexible battery replacement device for forklifts according to claim 2, 3, or 4, characterized in that, There are two limiting mechanisms, and the top block is located between the two limiting mechanisms.

8. A method for operating a flexible battery replacement device for forklifts, used in the flexible battery replacement device for forklifts as described in claim 6, characterized in that... The steps are as follows: Step 1: The replacement machine is paired with forklifts of different tonnage heights by adjusting the height of the casters. When the top block hits the frame, the hook plate in the rotating limit mechanism is rotated so that the hook is engaged in the slot at the bottom of the frame, thus fixing the replacement machine to the frame. Step 2: When the hook is engaged in the slot at the bottom of the frame, the limit block simultaneously triggers the first contact switch, the power supply to the replacement machine is turned on, the moving actuator is energized, and the push-pull plate is driven to move towards the battery; if any hook is not engaged, or one contact switch is not in contact, the moving actuator cannot be powered on. Step 3: The moving actuator moves the push-pull plate to the battery handle via the chain and aligns it with the battery handle. After the push-pull plate is in place, the second contact switch is triggered. When the second contact switch is triggered, the moving actuator stops and becomes ineffective. At the same time, the steering actuator in the locking mechanism is energized. The steering actuator drives the guide block to engage in the battery handle through the shaft and connecting rod to perform the locking action. After the locking action is completed, the shaft triggers the fifth contact switch. At this time, the steering actuator stops and becomes ineffective, the moving actuator is energized, and the moving actuator drives the push-pull plate to pull out the battery. Step 4: When the push-pull plate triggers the third contact switch, the battery is completely pulled out of the frame. At this time, the hook that is locked into the frame is pushed out of the frame, the first contact switch is disconnected from the limit block, the replacement machine disconnects the power, the electromagnetic brake engages to prevent the battery from sliding, and the hook plate rotates to limit the battery on the bracket.

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