Hoisting tool

Abstract

The utility model discloses a hoisting tool which comprises two clamping jaw units which can be close to or far away from each other, each clamping jaw unit comprises at least one clamping jaw, each clamping jaw comprises an inner connecting part and an outer connecting part which can slide relatively, and one end, facing a battery box body, of each outer connecting part is rotatably connected with an outer wheel. According to the utility model, the clamping jaw is provided with the inner connecting part and the outer connecting part which can slide relatively, and the outer wheel and the inner wheel, so that the inner connecting part is propped against the outer connecting part and the left end of the inner wheel is in rolling fit with the inner wall of the box body when the clamping jaw clamps the battery module in an over-pressure manner and places the battery module in the battery box body, and the friction force is reduced; after the battery module is placed in the box body, the battery module rebounds, so that the inner connecting part can transversely slide relative to the outer connecting part, the outer wheel is attached to the battery box body, the inner wheel is attached to the battery module, rolling friction is formed in the process that the clamping jaw is moved out of the box body, and then the difficulty of recycling the clamping jaw is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery hoisting equipment, and more specifically to a hoisting tool. Background Art

[0002] In the box-entry method using CTP module technology in power batteries, the module needs to be squeezed into the box after being over-pressurized. Whether the module reaches the designed height will affect subsequent steps such as copper busbar installation. In severe cases, it will affect the overall longitudinal dimensions of the battery pack. Therefore, it is particularly important to squeeze the CTP module to the designed height dimension inside the box.

[0003] In today's power battery manufacturing process, the more popular method of putting CTP modules into boxes is to use a clamp to squeeze them to the designed size first, then suck up the module with a suction cup, move it to the corresponding position of the box, and then move it into the box. After the tooling clamps against the crossbeam of the box, rotate the top pressure assembly to squeeze the module into the box, and then after squeezing to the limit, stop the suction cup air pressure, withdraw the tooling to complete the box entry.

[0004] However, since the module expands from the bottom during the downward extrusion process, the contact area with the side of the box and the size of the extrusion force will increase with the depth of extrusion into the box. Therefore, the CTP module will stop moving downward because of the large friction before reaching the bottom. In this case, how to weaken the influence of friction so that the CTP module can enter the box to the designed height size becomes an urgent problem to be solved. Utility Model Content

[0005] The technical problem to be solved by the utility model is how to reduce the friction force of the CTP module entering the box.

[0006] The utility model solves the above-mentioned technical problems through the following technical means: a lifting tool, comprising two clamping jaw units that can approach or move away from each other, the clamping jaw unit comprising at least one clamping jaw, the clamping jaw comprising an inner connecting part and an outer connecting part that can slide relative to each other, the outer connecting part is rotatably connected to one end of the battery box with an outer wheel, the inner connecting part is rotatably connected to the inner wheel, the outer connecting part can slide vertically relative to the inner connecting part, the inner connecting part can slide horizontally relative to the outer connecting part and cause the outer wheel to abut against the battery box and the inner wheel to abut against the battery module.

[0007] By configuring the clamping jaws as inner and outer connecting parts that can slide relative to each other, and configuring outer wheels and inner wheels, when the clamping jaws clamp the battery module with overpressure and place it in the battery box, the inner connecting part abuts against the outer connecting part, and the left end of the inner wheel rolls with the inner wall of the box, thereby reducing friction. After the battery module is placed in the box, the battery module rebounds, causing the inner connecting part to slide laterally relative to the outer connecting part and causing the outer wheel to abut against the battery box and the inner wheel to abut against the battery module, thereby forming rolling friction in the process of moving the clamping jaws out of the box, thereby reducing the difficulty of recovering the clamping jaws.

[0008] As a preferred technical solution, multiple wheel axles are fixedly connected to the inner connecting part, the inner wheel and the wheel axle are rotatably matched, and the outer connecting part is provided with an L-shaped limiting groove adapted to the wheel axle, the limiting groove includes a vertical section and a horizontal section, and the wheel axle extends into the limiting groove.

[0009] As a preferred technical solution, the inner connecting portion includes a connecting block 1 and a connecting block 2, and the connecting block 1 and the connecting block 2 are enclosed and fixed to form an inner wheel mounting groove adapted to the inner wheel.

[0010] As a preferred technical solution, the external connection part includes an extrusion block 1 and an extrusion block 2, and the extrusion block 1 and the extrusion block 2 are enclosed and fixed to form a frame structure located outside the internal connection part and closed circumferentially.

[0011] As a preferred technical solution, the extrusion block 1 and the extrusion block 2 are respectively provided with outer wheel mounting grooves adapted to the outer wheel, and the outer wheel is rotationally matched with the outer wheel mounting grooves.

[0012] As a preferred technical solution, it also includes an end pressure component and a hanger, the end pressure component includes a screw, an assembly platform, a clamping claw platform, and a fixed plate, the fixed plate is fixedly connected to the bottom end of the hanger, the hanger is threaded with a screw, one end of the screw is detachably connected to a wrench, and the other end is rotatably connected to the assembly platform, the assembly platform is slidably matched with the hanger, and the assembly platform is connected to the clamp through the clamping claw platform.

[0013] As a preferred technical solution, the component platform is slidably connected to the hanger via a slide rail, the slide rail is fixedly connected to the hanger, and the component platform slidably cooperates with the slide rail.

[0014] As a preferred technical solution, it also includes a top pressing component, which includes an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly connected to a suction cup.

[0015] As a preferred technical solution, the plurality of clamps are linearly distributed along the clamp platform.

[0016] As a preferred technical solution, a right limit block is fixedly connected to the outer side of the first extrusion block, and a left limit block is fixedly connected to the outer side of the second extrusion block.

[0017] The beneficial effects of the utility model are:

[0018] (1) In the utility model, the clamping jaws are provided with inner connecting parts and outer connecting parts that can slide relative to each other, and outer wheels and inner wheels are provided, so that when the clamping jaws clamp the battery module with overpressure and place it in the battery box, the inner connecting part abuts against the outer connecting part, and the left end of the inner wheel rolls with the inner wall of the box, thereby reducing friction. After the battery module is placed in the box, the battery module rebounds, causing the inner connecting part to slide laterally relative to the outer connecting part and causing the outer wheel to abut against the battery box, and the inner wheel to abut against the battery module, so that when the clamping jaws are moved out of the box, rolling friction is formed, thereby reducing the difficulty of recovering the clamping jaws. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the structure of the terminal pressure assembly provided in an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the clamping jaw structure provided in an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the axle structure provided by an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the inner wheel structure provided by an embodiment of the utility model;

[0024] Figure 6 A schematic diagram of the outer wheel structure provided by an embodiment of the utility model;

[0025] Figure Number:

[0026] 1. End pressure assembly; 11. Wrench; 12. Slide rail; 13. Screw; 14. Assembly platform; 15. Clamping claw platform; 16. Clamping claw; 161. Right limit block; 162. Outer wheel; 163. Extrusion block one; 164. Connecting block one; 165. Left limit block; 166. Connecting block two; 167. Extrusion block two; 168. Inner wheel; 17. Fixed plate; 2. Top pressure assembly; 3. Hanger; 4. Suction cup. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 A lifting tool comprises an end pressure component 1 and two clamping claw units connected to the end pressure component 1, a top pressure component 2, a hanger 3, and a suction cup 4. The two clamping claw units can move closer to or farther from each other, and the clamping claw units can slide relative to the hanger 3. The top pressure component 2 is fixedly connected to the top of the hanger 3, and its output end passes through the hanger 3 and is fixedly connected with a plurality of suction cups 4, which provide suction to the top of the battery module through the suction cups 4;

[0029] The clamping jaw unit includes at least one clamping jaw 16, which includes an inner connecting portion and an outer connecting portion that can slide relative to each other. The outer connecting portion is rotatably connected to an outer wheel 162 at one end of the battery case, and the inner connecting portion is rotatably connected to an inner wheel 168. The outer connecting portion can slide vertically relative to the inner connecting portion, and the inner connecting portion can slide laterally relative to the outer connecting portion and cause the outer wheel 162 to abut against the battery case and the inner wheel 168 to abut against the battery module. In this embodiment, the two clamping jaw units clamp the battery module by overpressure, and the outer connecting portion abuts against the battery module to increase the lateral fastening force. In the process of the clamping jaw unit moving toward the inner wall of the case, the outer connecting portion abuts against the battery module, and the outer connecting portion is hung on the inner connecting portion. At this time, the left side of the inner wheel 168 of the clamping jaw 16 is in rolling contact with the side wall of the battery case, reducing friction.

[0030] See also Figure 1 , Figure 4 When the battery module is placed at the bottom of the box, the suction cup 4 is closed, and the outer connection part slides upward relative to the inner connection part. The battery module rebounds, causing the inner connection part to slide laterally relative to the outer connection part and causing the outer wheel 162 to abut against the battery box and the inner wheel 168 to abut against the battery module, so that the clamping jaws 16 form rolling friction during the process of being moved out of the box, thereby reducing the difficulty of recovering the clamping jaws.

[0031] See also Figure 3 Figure 4The inner connecting part includes a connecting block 164 and a connecting block 2 166. The connecting block 164 is U-shaped. The connecting block 164 and the connecting block 2 166 are fixed together to form an inner wheel mounting groove compatible with the inner wheel 168. The inner wheel mounting groove and the inner wheel 168 are rotatably matched. The outer connecting part includes an extrusion block 163 and an extrusion block 2 167. The extrusion block 163 and the extrusion block 2 167 are fixed together to form a frame structure located outside the inner connecting part and closed in the circumferential direction. At the same time, the frame structure can also provide space for the sliding of the inner connecting part, that is, the frame size is larger than the size of the inner connecting part, or a groove allowing the inner connecting part to slide into is provided on the inner wall of the frame, thereby meeting the space requirements for the sliding of the two; the outer side of the extrusion block 163 is fixedly connected to the right limit block 161, and the outer side of the extrusion block 2 167 is fixedly connected to the left limit block 165, wherein the fixation is fastened by bolt connection.

[0032] See also Figure 4 A plurality of axles are fixedly connected to both ends of the inner connection part, the inner wheel 168 rotates with the axle, an L-shaped limit groove matching the axle is opened on the inner wall of the frame structure, the limit groove includes a vertical section and a horizontal section, and the axle extends into the L-shaped limit groove,

[0033] See also Figure 2 The end pressure assembly 1 includes a wrench 11, a slide rail 12, a screw 13, an assembly platform 14, a clamping claw platform 15, and a fixed plate 17. The fixed plate 17 is fixedly connected to the bottom end of the hanger 3. The screw 13 is threadedly connected to the hanger 3. One end of the screw 13 is detachably connected to the wrench 11, and the other end is rotatably connected to the assembly platform 14. The assembly platform 14 slides with the hanger 3. The assembly platform 14 is connected to the clamping claw 16 through the clamping claw platform 15. The assembly platform 14 is fixedly connected to the clamping claw platform 15. Multiple clamping claws 16 are fixedly connected to the clamping claw platform 15 and are linearly distributed along the clamping claw platform 15. In this embodiment, three clamping claws 16 are taken as an example, but not limited to this. The assembly platform 14 is slidably connected to the hanger 3 through the slide rail 12. The slide rail 12 is fixedly connected to the hanger 3, and the assembly platform 14 slides with the slide rail 12.

[0034] See also Figure 1 The top pressure component 2 includes an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly connected to a suction cup 4. In this embodiment, the top pressure component 2 can also be a screw linear module, and the suction cup 4 is fixed to the movable end of the screw linear module, or it can be a screw drive. The top of the hanger 3 is fixedly connected to a screw bracket, and a threaded rod is threadedly connected to the screw bracket. The top of the threaded rod is fixedly connected to a handle, and the bottom is rotatably connected to a mobile bracket, and the end of the mobile bracket facing the battery module is fixedly connected to the suction cup 4.

[0035] See also Figure 4 , Figure 5 , Figure 6In this embodiment, the width of the outer connecting part is L1, the width of the inner connecting part is L2, the diameter of the inner wheel 168 is R1, the length of the horizontal section of the L-shaped limiting groove is S, and the dimension of the outer wheel 162 protruding from the outer frame is L3, wherein L2<R1, R1 is greater than L2 to ensure that the inner wheel 168 can extend out of the plane where the end face of the inner connecting part is located, so as to ensure its contact with the battery box; L1+L3<R1 / 2+L2, so as to ensure that when the clamp 16 is lifted, the end face of the inner connecting part can at least be flush with the plane where the end face of the outer wheel 162 is located, thereby ensuring that the outer wheel 162 contacts the battery box and the inner wheel contacts the battery module.

[0036] Directions:

[0037] See also Figure 4 When the suction cup 4 on the top of the top pressure assembly 2 generates suction on the battery module, the battery module is clamped by the two clamping claws 16, that is, the inner connection part is pressed against the battery module through the outer connection part. Figure 4 In the state shown, the left side of the external connection part is the inner wall of the box, and the right side is the inner wall of the module. Since the internal connection part is fixedly connected to the clamping claw platform 15, the external connection part is clamped at the top of the vertical section of the L-shaped limit groove. At this time, the right end of the internal connection part is located in the area to the left of the plane where the right end of the external connection part is located, and the inner wheel 168 is in rolling cooperation with the inner wall of the box;

[0038] See also Figure 5 When the clamping claw 16 is placed to the bottom with the hanger 3, the outer connecting part moves upward relative to the inner connecting part due to the stopper at the bottom of the battery box. At this time, the horizontal section of the L-shaped limiting groove forms a limit, and then the suction cup 4 is removed;

[0039] See also Figure 6 , the two clamping jaws 16 remove the clamping force, and the battery rebounds after being clamped under overpressure, causing the inner connecting part to move to the right relative to the outer connecting part. At this time, the left end of the inner wheel 168 is squeezed into the plane where the left end of the outer wheel 162 is located, and the top of the horizontal section of the L-shaped limiting groove is designed to be inclined upward. When the inner connecting part moves upward, due to the guiding effect of the hypotenuse, the wheel axle moves to the rightmost end of the horizontal section of the L-shaped limiting groove. At this time, the left end of the outer wheel 162 and the left end of the inner wheel 168 are in rolling contact with the inner wall of the battery box, and the right end of the inner wheel 168 is in rolling contact with the inner wall of the battery module.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lifting tool, characterized in that: The invention comprises two clamping jaw units which can approach or move away from each other, the clamping jaw unit comprises at least one clamping jaw (16), the clamping jaw (16) comprises an inner connecting portion and an outer connecting portion which can slide relative to each other, the outer connecting portion is rotatably connected to one end of the battery box with an outer wheel (162), the inner connecting portion is rotatably connected to an inner wheel (168), the outer connecting portion can slide vertically relative to the inner connecting portion, the inner connecting portion can slide horizontally relative to the outer connecting portion and cause the outer wheel (162) to abut against the battery box and the inner wheel (168) to abut against the battery module.

2. A lifting tool according to claim 1, characterized in that: A plurality of wheel axles are fixedly connected to the inner connection part, the inner wheel (168) is rotatably matched with the wheel axle, and an L-shaped limiting groove adapted to the wheel axle is provided on the outer connection part, the limiting groove comprises a vertical section and a horizontal section, and the wheel axle extends into the limiting groove.

3. A lifting tool according to claim 1, characterized in that: The inner connection portion comprises a connection block 1 (164) and a connection block 2 (166), wherein the connection block 1 (164) and the connection block 2 (166) are enclosed and fixed to form an inner wheel installation groove adapted to the inner wheel (168).

4. A lifting tool according to claim 1, characterized in that: The outer connection part comprises an extrusion block 1 (163) and an extrusion block 2 (167), and the extrusion block 1 (163) and the extrusion block 2 (167) are enclosed and fixed to form a frame structure located outside the inner connection part and closed in a circumferential direction.

5. A lifting tool according to claim 4, characterized in that: The extrusion block 1 (163) and the extrusion block 2 (167) are respectively provided with outer wheel mounting grooves adapted to the outer wheel (162), and the outer wheel (162) is rotatably matched with the outer wheel mounting grooves.

6. A lifting tool according to claim 1, characterized in that: The invention also comprises an end pressure component (1) and a hanger (3). The end pressure component (1) comprises a screw rod (13), a component platform (14), a clamping claw platform (15) and a fixing plate (17). The fixing plate (17) is fixedly connected to the bottom end of the hanger (3). The hanger (3) is threadedly connected with a screw rod (13). One end of the screw rod (13) is detachably connected with a wrench (11), and the other end is rotatably connected with the component platform (14). The component platform (14) is slidably matched with the hanger (3). The component platform (14) is connected to the clamping claw (16) via the clamping claw platform (15).

7. A lifting tool according to claim 6, characterized in that: The component platform (14) is slidably connected to the hanger (3) via a slide rail (12); the slide rail (12) is fixedly connected to the hanger (3); and the component platform (14) is slidably matched with the slide rail (12).

8. The lifting tool according to claim 1, characterized in that: It also comprises a pressing assembly (2), wherein the pressing assembly (2) comprises an electric telescopic rod, and a suction cup (4) is fixedly connected to the telescopic end of the electric telescopic rod.

9. The lifting tool according to claim 6, characterized in that: The plurality of clamping jaws (16) are linearly distributed along the clamping jaw platform (15).

10. A lifting tool according to claim 5, characterized in that: The outer side of the first extrusion block (163) is fixedly connected to a right limit block (161), and the outer side of the second extrusion block (167) is fixedly connected to a left limit block (165).

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