Battery pack replacement mechanism and method for heavy truck battery replacement assembly

Abstract

The present invention relates to the field of battery pack replacement of heavy-duty truck battery swapping battery assemblies, and specifically to a battery pack replacement mechanism and method of a heavy-duty truck battery swapping battery assembly, comprising a frame and a battery pack, wherein a sliding mechanism is fixedly provided on the frame, and the battery pack is fixedly installed on the sliding mechanism so that the battery pack can be pushed out of the frame. The battery pack replacement mechanism and method of the heavy-duty truck battery swapping battery assembly, by providing a sliding mechanism on the frame, enables the battery pack to be pulled out from the side of the frame. When replacing the battery pack, there is no need to lift it out from the top of the frame, which facilitates the replacement of the battery pack and the installation process is extremely convenient. Moreover, when replacing the battery pack on the bottom layer, the traditional method is to lift out all the battery packs on the top, but now it is only necessary to push the sliding mechanism on the bottom layer, and there is no need to lift out all the battery packs, which saves workers' time. After the battery pack is pushed out of the frame, the battery pack can be removed from the sliding mechanism.

Description

Technical Field

[0001] The present invention relates to the field of battery pack replacement for a heavy truck battery swap assembly, and in particular to a battery pack replacement mechanism and method for a heavy truck battery swap assembly. Background Art

[0002] When replacing the battery pack of a heavy-duty truck, the traditional method is to lift the battery pack out along the top of the frame, then inspect it, and then install it back after the inspection is completed. The lifting and installation process is extremely complicated, wasting a lot of workers' time. In addition, if only the battery pack on the bottom layer is to be replaced, all battery packs still need to be lifted out before replacement. Summary of the Invention

[0003] The object of the present invention is to provide a battery pack replacement mechanism and method for a heavy truck battery replacement battery assembly.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A battery pack replacement mechanism for a heavy-duty truck battery replacement assembly is provided, comprising a frame and a battery pack. A sliding mechanism is fixedly provided on the frame, and the battery pack is fixedly mounted on the sliding mechanism so that the battery pack can be pushed out of the frame.

[0006] Furthermore, it also includes a central jacking mechanism, a side jacking mechanism, a first mounting frame, a clamping mechanism and a side pulling mechanism. The side pulling mechanism is fixedly mounted on the first mounting frame for pulling out the battery pack horizontally. The clamping mechanism is fixedly mounted on the conveying seat of the side pulling mechanism for clamping the battery pack. The central jacking mechanism is fixedly mounted on the first mounting frame for pushing the battery pack upward, and the contact position is the middle of the battery pack. The side jacking mechanism is fixedly mounted on the first mounting frame for pushing the battery pack upward, and the contact position is on both sides of the battery pack. The clamping mechanism is provided with two clamping plates for clamping the battery pack, and the clamping plates can be slid upward and installed on the clamping mechanism.

[0007] Furthermore, the sliding mechanism includes a second mounting frame, two first slide rails and two rows of first slides. The two rows of first slides are fixedly mounted on the frame. The two first slide rails are respectively slidably connected to the two rows of first slides. The second mounting frame is fixedly mounted on the top of the two first slide rails, and the battery pack is fixedly mounted on the second mounting frame.

[0008] Furthermore, the side pulling mechanism includes a first guide column, an electric push rod, a guide plate and a push tube. The guide plate is fixedly mounted on the first mounting frame, the electric push rod is fixedly mounted on the guide plate, the output end of the electric push rod is fixedly connected to the push tube, the first guide column is slidingly connected to the guide plate, one end of the first guide column is fixedly connected to the push tube, and the push tube is the conveying seat.

[0009] Furthermore, the clamping mechanism includes a first cylinder, a pull rod, a second slide rail, two hinged rods, a displacement rod, a second slide seat, and a displacement plate. The first cylinder is fixedly mounted on the push tube via a mounting seat. The second slide rail is fixedly mounted on one side of the push tube. The two second slide seats are slidably connected to the second slide rail. The two displacement plates are respectively fixedly mounted on the two second slide seats. The displacement rod is fixedly mounted on the displacement plate via a connecting plate. The pull rod is fixedly mounted on the output end of the first cylinder. One end of the hinged rod is hinged to the pull rod, and the other end is hinged to the displacement rod. The two clamping plates are respectively slidably connected to the two displacement plates.

[0010] Furthermore, a slide bar is provided on the splint, a slide groove for the slide bar to slide is provided on the displacement plate, and a limit plate is provided on one side of the slide bar.

[0011] Furthermore, the middle lifting mechanism includes a middle push plate, a second cylinder and a second guide column. The second cylinder is fixedly mounted on the first mounting frame. The second guide column can be slid up and down on the first mounting frame. The top end of the second guide column is fixedly connected to the middle push plate, and the output end of the second cylinder is fixedly connected to the middle push plate.

[0012] Furthermore, the side lifting mechanism includes a third cylinder, a lifting plate, two side push plates and a third guide column. The two side push plates are located on both sides of the middle push plate. The top ends of the two third guide columns are fixedly connected to the two side push plates. The third guide column can be slid up and down on the first mounting frame. The lifting plate is fixedly installed on the bottom ends of the two third guide columns. The third cylinder is fixedly installed on the first mounting frame, and the output end of the third cylinder is fixedly connected to the lifting plate.

[0013] A method for replacing a battery pack of a heavy truck battery replacement assembly is characterized by:

[0014] Step 1: The lifting mechanism drives the clamping mechanism to move to the set position;

[0015] Step 2: The two clamps of the side-pull mechanism move to both sides of the battery pack;

[0016] Step 3: Clamp the battery pack with the clamping plate;

[0017] Step 4: Slide and pull the battery pack out from the frame.

[0018] Step 5: Separate the battery pack from the sliding mechanism and support the battery pack.

[0019] Furthermore, a method for replacing a battery pack of a heavy truck battery replacement assembly is characterized in that the battery pack is separated from the sliding mechanism, and the method for supporting the battery pack is:

[0020] The connection between the battery pack and the sliding mechanism is disassembled by workers;

[0021] The middle lifting mechanism pushes upward to separate the battery pack from the sliding mechanism;

[0022] Push the sliding mechanism to reset. When the sliding mechanism is about to contact the middle lifting mechanism, the controller controls the side lifting mechanism to push upward to support the battery pack, and then controls the middle lifting mechanism to reset, so that the middle lifting mechanism avoids the sliding mechanism;

[0023] Continue to push the sliding mechanism to reset. When the tail of the sliding mechanism passes through the middle lifting mechanism, the controller controls the sliding mechanism to push upward to support the battery pack, and then controls the side lifting mechanism to reset.

[0024] Beneficial effects of the present invention: The battery pack replacement mechanism and method of the heavy-duty truck battery replacement assembly, by arranging a sliding mechanism on the frame, enables the battery pack to be pulled out from the side of the frame. When replacing the battery pack, there is no need to lift it out from the top of the frame, which facilitates the replacement of the battery pack and the installation process is also extremely convenient. Moreover, if the battery pack on the bottom layer is to be replaced, the traditional method is to lift out all the battery packs on the top, but now it is only necessary to push the sliding mechanism on the bottom layer, and there is no need to lift out all the battery packs, thus saving workers' time.

[0025] After the battery pack is pushed out of the frame, the battery pack can be removed from the sliding mechanism through the middle jacking mechanism, side jacking mechanism, clamping mechanism and side pulling mechanism. Workers do not need to carry the battery pack, saving their physical strength. The battery pack is too heavy, so workers do not need to carry it, avoiding the risk of injury to workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention.

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a partial front view of the present invention;

[0029] Figure 3 Schematic diagram of the three-dimensional structure of the sliding mechanism;

[0030] Figure 4 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0031] Figure 5 It is a schematic diagram of the partial three-dimensional structure of the clamping mechanism;

[0032] Figure 6 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0033] In the figure: 1. frame; 2. battery pack; 3. sliding mechanism; 3a. first slide rail; 3b. first slide seat; 3c. second mounting frame; 4. middle lifting mechanism; 4a. middle push plate; 4b. second cylinder; 4c. second guide column; 5. side lifting mechanism; 5a. side push plate; 5b. third cylinder; 5c. third guide column; 5d. lifting plate; 6. first mounting frame; 7. clamping mechanism; 7a. clamping plate; 7b. first cylinder; 7c. pull rod; 7d. hinged rod; 7e. displacement rod; 7f. second slide seat; 7h. second slide rail; 7j. displacement plate; 7h. slide groove; 8. side pulling mechanism; 8a. first guide column; 8b. electric push rod; 8c. guide plate; 8d. push tube. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0035] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0036] Reference Figure 1 The battery pack replacement mechanism and method of the heavy-duty truck battery replacement assembly shown include a frame 1 and a battery pack 2. A sliding mechanism 3 is fixedly provided on the frame 1, and the battery pack 2 is fixedly installed on the sliding mechanism 3, so that the battery pack 2 can be pushed out of the frame 1. By providing the sliding mechanism 3 on the frame 1, the battery pack 2 can be pulled out from the side of the frame 1. When replacing the battery pack, there is no need to lift it out from the top of the frame 1, which facilitates the replacement of the battery pack and the installation process is extremely convenient. If the battery pack 2 on the bottom layer is to be replaced, the traditional method is to lift out all the battery packs 2 on the top, but now it is only necessary to push the sliding mechanism 3 on the bottom layer, and there is no need to lift out all the battery packs 2, saving workers' time.

[0037] In the present invention, Figure 2As shown, it also includes a central jacking mechanism 4, a side jacking mechanism 5, a first mounting frame 6, a clamping mechanism 7 and a side pulling mechanism 8. The side pulling mechanism 8 is fixedly mounted on the first mounting frame 6 for horizontally pulling out the battery pack 2. The clamping mechanism 7 is fixedly mounted on the conveying seat of the side pulling mechanism 8 for clamping the battery pack 2. The central jacking mechanism 4 is fixedly mounted on the first mounting frame 6 for pushing the battery pack 2 upward, and the contact position is the middle of the battery pack 2. The side jacking mechanism 5 is fixedly mounted on the first mounting frame 6 for pushing the battery pack 2 upward, and the contact position is on both sides of the battery pack 2. The clamping mechanism 7 is provided with two clamping plates 7a for clamping the battery pack 2, and the clamping plates 7a can be slid upward and mounted on the clamping mechanism 7. The first mounting frame 6 is fixedly mounted on the lifting mechanism (not shown in the figure). After the clamping mechanism 7 is driven by the lifting mechanism to move to the set position, the controller controls the side pulling mechanism 8 to work, so that the side pulling mechanism 8 pushes the clamping mechanism 7 close to the battery pack 2, so that the two clamping plates 7a move to the two sides of the battery pack 2. The controller controls the clamping mechanism 7 to work, so that the clamping mechanism 7 drives the two clamping plates 7a to clamp the battery pack 2. The controller controls the side pulling mechanism 8 to reset, so that the battery pack 2 slides along the sliding mechanism 3, so that the battery pack 2 is pulled out of the frame 1, and then the worker connects the battery pack 2 to the sliding mechanism 3. Then, the disassembly is carried out, and the controller controls the middle jacking mechanism 4 to push upward, so that the battery pack 2 is pushed upward, and the battery pack 2 is separated from the sliding mechanism 3. After the separation is completed, the worker pushes the sliding mechanism 3 to reset. When the sliding mechanism 3 is about to contact the middle jacking mechanism 4, the controller controls the side jacking mechanism 5 to push upward to support the battery pack 2, and then controls the middle jacking mechanism 4 to reset, so that the middle jacking mechanism 4 avoids the sliding mechanism 3. When the tail of the sliding mechanism 3 passes through the middle jacking mechanism 4, the controller controls the sliding mechanism 3 to push upward to support the battery pack 2, and then controls the side jacking mechanism 5 to reset.

[0038] When the battery pack 2 is lifted upward, the two clamps 7a still maintain the clamping of the battery pack 2, which will cause the battery pack 2 to drive the clamps 7a to slide upward. By maintaining the clamping, the battery pack 2 is prevented from sliding out and falling due to the tilt of the side lifting mechanism 5 or the top surface of the first mounting frame 6.

[0039] In the present invention, Figure 3As shown, the sliding mechanism 3 includes a second mounting frame 3c, two first slide rails 3a, and two rows of first slides 3b. The two rows of first slides 3b are fixedly mounted on the frame 1. The two first slide rails 3a are slidably connected to the two rows of first slides 3b. The second mounting frame 3c is fixedly mounted on top of the two first slide rails 3a, and the battery pack 2 is fixedly mounted on the second mounting frame 3c. The first slide rails 3a slide on the first slides 3b, allowing the second mounting frame 3c to be pulled out of the frame 1, thereby pulling the battery pack 2 mounted on the second mounting frame 3c out of the frame 1.

[0040] In the present invention, Figure 4 As shown, the side-pull mechanism 8 includes a first guide post 8a, an electric push rod 8b, a guide plate 8c, and a push tube 8d. The guide plate 8c is fixedly mounted on the first mounting frame 6. The electric push rod 8b is fixedly mounted on the guide plate 8c. The output end of the electric push rod 8b is fixedly connected to the push tube 8d. The first guide post 8a is slidably connected to the guide plate 8c. One end of the first guide post 8a is fixedly connected to the push tube 8d. The push tube 8d serves as the conveying seat. The electric push rod 8b is controlled by a controller to operate, so that the electric push rod 8b pushes the push tube 8d to move, and the push tube 8d drives the first guide post 8a to slide along the guide plate 8c.

[0041] In the present invention, Figure 4 As shown, the clamping mechanism 7 includes a first cylinder 7b, a pull rod 7c, a second slide rail 7h, two hinged rods 7d, a displacement rod 7e, a second slide 7f, and a displacement plate 7j. The first cylinder 7b is fixedly mounted on the push tube 8d via a mounting base. The second slide rail 7h is fixedly mounted on one side of the push tube 8d. The two second slides 7f are slidably connected to the second slide rail 7h. The two displacement plates 7j are respectively fixedly mounted on the two second slides 7f. The displacement rod 7e is fixedly mounted on the displacement plates 7j via a connecting plate. The pull rod 7c is fixedly mounted on the output end of the first cylinder 7b. One end of the hinged rod 7d is hinged to the pull rod 7c, and the other end is hinged to the displacement rod 7e. The two clamping plates 7a are slidably connected to the two displacement plates 7j. After the splint 7a is inserted into both sides of the battery pack 2, the controller controls the first cylinder 7b to work, so that the first cylinder 7b pushes the pull rod 7c to move, and the pull rod 7c will simultaneously drive the two hinged rods 7d to move, so that the hinged rod 7d pulls the displacement plate 7j to move through the displacement rod 7e, thereby causing the two splints 7a to clamp the two sides of the battery pack 2. When the battery pack 2 moves upward, the battery pack 2 will drive the splint 7a to slide upward along the displacement plate 7j.

[0042] In the present invention, Figure 5As shown, a slide bar is provided on the clamping plate 7a, and a sliding groove 7h is provided on the displacement plate 7j for the slide bar to slide. A limit plate is provided on one side of the slide bar. After the battery pack 2 is clamped by the clamping plate 7a, when the battery pack 2 moves upward, the battery pack 2 will drive the clamping plate 7a upward, causing the slide bar to slide within the sliding groove 7h.

[0043] In the present invention, Figure 6 As shown, the central lifting mechanism 4 includes a central push plate 4a, a second cylinder 4b, and a second guide post 4c. The second cylinder 4b is fixedly mounted on the first mounting bracket 6, and the second guide post 4c is slidably mounted on the first mounting bracket 6. The top end of the second guide post 4c is fixedly connected to the central push plate 4a, and the output end of the second cylinder 4b is fixedly connected to the central push plate 4a. The second cylinder 4b is activated by a controller, driving the central push plate 4a upward, causing the central push plate 4a to push the battery pack 2 upward.

[0044] In the present invention, Figure 6 As shown, the side lifting mechanism 5 includes a third cylinder 5b, a lifting plate 5d, two side push plates 5a, and a third guide post 5c. The two side push plates 5a are located on either side of the central push plate 4a. The top ends of the two third guide posts 5c are fixedly connected to the two side push plates 5a. The third guide posts 5c are mounted on the first mounting frame 6 so as to be able to slide up and down. The lifting plate 5d is fixedly mounted on the bottom ends of the two third guide posts 5c. The third cylinder 5b is fixedly mounted on the first mounting frame 6, and the output end of the third cylinder 5b is fixedly connected to the lifting plate 5d. The third cylinder 5b is controlled by a controller to operate. The third cylinder 5b will push the lifting plate 5d upward, causing the lifting plate 5d to push the two third guide posts 5c to slide upward, causing the third guide posts 5c to push the side push plates 5a upward, causing the side push plates 5a to push the battery pack 2 upward.

[0045] This embodiment also discloses a method for using the battery pack replacement mechanism of the heavy truck battery replacement assembly, which is characterized by:

[0046] After the clamping mechanism 7 is driven to move to the set position by the lifting mechanism, the controller is used to control the side pulling mechanism 8 to work, so that the side pulling mechanism 8 pushes the clamping mechanism 7 close to the battery pack 2, so that the two clamping plates 7a move to the two sides of the battery pack 2, and then the controller is used to control the clamping mechanism 7 to work, so that the clamping mechanism 7 drives the two clamping plates 7a to clamp the battery pack 2, and then the controller is used to control the side pulling mechanism 8 to reset, so that the battery pack 2 slides along the sliding mechanism 3, so that the battery pack 2 is pulled out of the frame 1, and then the worker disassembles the connection between the battery pack 2 and the sliding mechanism 3 ... and then the battery pack 2 is pulled out of the frame 1. The central jacking mechanism 4 is controlled to push upward, so that the battery pack 2 is pushed upward, and the battery pack 2 is separated from the sliding mechanism 3. After the separation is completed, the sliding mechanism 3 is pushed back to its original position by the worker. When the sliding mechanism 3 is about to contact the central jacking mechanism 4, the controller controls the side jacking mechanism 5 to push upward to support the battery pack 2, and then controls the central jacking mechanism 4 to reset, so that the central jacking mechanism 4 avoids the sliding mechanism 3. When the tail of the sliding mechanism 3 passes through the central jacking mechanism 4, the controller controls the sliding mechanism 3 to push upward to support the battery pack 2, and then controls the side jacking mechanism 5 to reset.

Claims

1. A battery pack replacement mechanism for a heavy truck battery replacement assembly, comprising a frame (1) and a battery pack (2), characterized in that: A sliding mechanism (3) is fixedly provided on the frame (1), and the battery pack (2) is fixedly mounted on the sliding mechanism (3), so that the battery pack (2) can be pulled out of the frame (1); The battery pack (2) is also provided with a central lifting mechanism (4), a side lifting mechanism (5), a first mounting frame (6), a clamping mechanism (7) and a side pulling mechanism (8). The side pulling mechanism (8) is fixedly mounted on the first mounting frame (6) for horizontally pulling out the battery pack (2). The clamping mechanism (7) is fixedly mounted on the conveying seat of the side pulling mechanism (8) for clamping the battery pack (2). The central lifting mechanism (4) is fixedly mounted on the first mounting frame (6) for pushing the battery pack (2) upwards, and the contact position is the middle of the battery pack (2). The side lifting mechanism (5) is fixedly mounted on the first mounting frame (6) for pushing the battery pack (2) upwards, and the contact position is the two sides of the battery pack (2). The clamping mechanism (7) is provided with two clamping plates (7a) for clamping the battery pack (2). The clamping plates (7a) are slidably mounted on the clamping mechanism (7). The sliding mechanism (3) comprises a second mounting frame (3c), two first slide rails (3a) and two rows of first slide seats (3b); the two rows of first slide seats (3b) are fixedly mounted on the frame (1); the two first slide rails (3a) are respectively slidably connected to the two rows of first slide seats (3b); the second mounting frame (3c) is fixedly mounted on the top of the two first slide rails (3a); and the battery pack (2) is fixedly mounted on the second mounting frame (3c); The middle lifting mechanism (4) comprises a middle push plate (4a) and a second cylinder (4b), wherein the second cylinder (4b) is fixedly mounted on the first mounting frame (6), and the output end of the second cylinder (4b) is fixedly connected to the middle push plate (4a); The side lifting mechanism (5) includes a third cylinder (5b), a lifting plate (5d), two side push plates (5a) and a third guide column (5c). The two side push plates (5a) are located on both sides of the middle push plate (4a). The top ends of the two third guide columns (5c) are fixedly connected to the two side push plates (5a). The third guide columns (5c) are slidably mounted on the first mounting frame (6). The lifting plate (5d) is fixedly mounted on the bottom ends of the two third guide columns (5c). The third cylinder (5b) is fixedly mounted on the first mounting frame (6). The output end of the third cylinder (5b) is fixedly connected to the lifting plate (5d). The method for using the battery pack replacement mechanism of the heavy truck battery replacement assembly comprises the following steps: step 1: the lifting mechanism drives the clamping mechanism (7) to move to a set position; step 2: the two clamping plates (7a) of the side pulling mechanism (8) move to the two sides of the battery pack (2); step 3: the clamping plates (7a) clamp the battery pack (2); step 4: the battery pack (2) is slid and pulled out from the inside of the frame (1); step 5: the battery pack (2) is separated from the sliding mechanism (3), and the battery pack (2) is supported; The method for separating the battery pack from the sliding mechanism and supporting the battery pack is as follows: a worker disassembles the connection between the battery pack (2) and the sliding mechanism (3); the middle lifting mechanism (4) pushes upward to separate the battery pack (2) from the sliding mechanism (3); the sliding mechanism (3) is pushed to reset, and when the sliding mechanism (3) is about to contact the middle lifting mechanism (4), the controller controls the side lifting mechanism (5) to push upward to support the battery pack (2), and then controls the middle lifting mechanism (4) to reset, so that the middle lifting mechanism (4) avoids the sliding mechanism (3); the sliding mechanism (3) is continued to be pushed to reset, and when the tail of the sliding mechanism (3) passes through the middle lifting mechanism (4), the controller controls the middle lifting mechanism (4) to push upward to support the battery pack (2), and then controls the side lifting mechanism (5) to reset.

2. The battery pack replacement mechanism for a heavy truck battery replacement assembly according to claim 1 is characterized in that: The side pulling mechanism (8) comprises a first guide column (8a), an electric push rod (8b), a guide plate (8c) and a push tube (8d); the guide plate (8c) is fixedly mounted on the first mounting frame (6); the electric push rod (8b) is fixedly mounted on the guide plate (8c); the output end of the electric push rod (8b) is fixedly connected to the push tube (8d); the first guide column (8a) is slidably connected to the guide plate (8c); one end of the first guide column (8a) is fixedly connected to the push tube (8d); and the push tube (8d) is the conveying seat.

3. The battery pack replacement mechanism for a heavy truck battery replacement assembly according to claim 2 is characterized in that: The clamping mechanism (7) comprises a first cylinder (7b), a pull rod (7c), a second slide rail (7h), two hinged rods (7d), a displacement rod (7e), a second slide seat (7f) and a displacement plate (7j). The first cylinder (7b) is fixedly mounted on the push tube (8d) via a mounting seat. The second slide rail (7h) is fixedly mounted on one side of the push tube (8d). The two second slide seats (7f) are both slidably connected to the second slide rail (7h). The two displacement plates (7j) are respectively fixedly mounted on the two second slide seats (7f). The displacement rod (7e) is fixedly mounted on the displacement plate (7j) via a connecting plate. The pull rod (7c) is fixedly mounted on the output end of the first cylinder (7b). One end of the hinged rod (7d) is hinged to the pull rod (7c), and the other end is hinged to the displacement rod (7e). The two clamping plates (7a) are respectively slidably connected to the two displacement plates (7j).

4. The battery pack replacement mechanism for a heavy truck battery replacement assembly according to claim 3 is characterized in that: A slide bar is provided on the clamping plate (7a), a slide groove (7k) for the slide bar to slide is provided on the displacement plate (7j), and a limit plate is provided on one side of the slide bar.

5. The battery pack replacement mechanism for a heavy truck battery replacement assembly according to claim 4 is characterized in that: The middle lifting mechanism (4) also includes a second guide column (4c), which is slidably mounted on the first mounting frame (6) and the top end of the second guide column (4c) is fixedly connected to the middle push plate (4a).

6. The method for using the battery pack replacement mechanism of the heavy truck battery replacement assembly according to claim 5 is characterized by: Step 1: The lifting mechanism drives the clamping mechanism (7) to move to a set position; Step 2: The two clamping plates (7a) of the side pulling mechanism (8) move to the two sides of the battery pack (2); Step 3: The clamping plate (7a) clamps the battery pack (2); Step 4: Slide and pull the battery pack (2) out from the inside of the frame (1); Step 5: Separate the battery pack (2) from the sliding mechanism (3) and support the battery pack (2).

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