Rotation equipment for power battery pack repair

Abstract

This utility model relates to a flipping device for power battery pack maintenance, comprising: a base assembly including two welded bases on the left and right sides; a flipping machine including a worm gear reducer, a bearing with a seat, and a first handwheel mounted on the welded bases; a displacement frame assembly, which drives the worm gear reducer and flips the displacement frame assembly by shaking the first handwheel; a front and rear drive mechanism mounted on a crossbeam, driving two longitudinal beams to move synchronously in opposite directions to clamp or release the battery pack from the front and rear directions; and at least one centering clamping mechanism mounted on the longitudinal beams for clamping the battery pack in the vertical direction. This utility model can achieve rapid clamping of battery packs, and the frame size and jaw position can be infinitely adjusted through a screw and slide rail mechanism, which can quickly adapt to battery packs of different shapes and sizes and is compatible with multiple specifications.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery technology, and in particular to a flipping device for power battery pack maintenance. Background Technology

[0002] As the market share of new energy vehicles increases, so too does the number of problems with car battery packs, such as damage to the water-cooling plate from chassis scrapes and the expiration of battery cell lifespan. Replacing the water-cooling plate and disassembling the battery pack both require a battery pack flipping device.

[0003] Existing flipping methods include those using slings which pose safety hazards, pneumatic flipping which has poor compatibility and is too expensive, and products that are screwed onto the flipping frame, which can easily jam and become difficult to remove after the product is flipped 180 degrees.

[0004] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a flipping device for the maintenance of power battery packs, making it more valuable for industrial use. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a flipping device for power battery pack maintenance.

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

[0007] The flipping equipment used for power battery pack maintenance includes:

[0008] The base assembly includes two welded bases on the left and right sides;

[0009] The tilting machine includes a worm gear reducer, a seated bearing, and a first handwheel mounted on a welded base;

[0010] The displacement frame assembly includes two horizontal beams that are parallel to each other on the left and right sides, and two vertical beams that are parallel to each other on the front and rear sides are installed between the two horizontal beams. The two horizontal beams are rotatably mounted on two bearings with seats via a drive shaft and a driven shaft, respectively. The worm gear reducer is driven by shaking the first handwheel and the displacement frame assembly is rotated.

[0011] The front and rear drive mechanisms mounted on the crossbeam drive the two longitudinal beams to move synchronously toward or away from each other in order to clamp or release the battery pack from the front and rear directions.

[0012] At least one centering clamping mechanism is installed on the longitudinal beam for clamping the battery pack in the vertical direction.

[0013] As a further improvement of this utility model, the bearing with seat is mounted on the welding base by bearing shims. The base assembly also includes a support base, with two support bases respectively mounted on the left and right sides of the support base. Several casters and support pads are installed at the bottom of the support base.

[0014] As a further improvement of this utility model, the front and rear drive mechanism includes a first left-right rotating T-shaped lead screw mounted on the crossbeam, a second handwheel that drives the first left-right rotating T-shaped lead screw, and two first lead screw nuts that are engaged with two sections of threads with opposite rotation directions on the first left-right rotating T-shaped lead screw; the two first lead screw nuts are respectively connected to two longitudinal beams, and the two longitudinal beams are driven to move towards or away from each other by shaking the second handwheel.

[0015] As a further improvement of this utility model, the front and rear sides of the first left-hand and right-hand T-shaped lead screw are respectively mounted on the crossbeam through the first support bearing seat and the first fixed bearing seat.

[0016] As a further improvement of this utility model, the two longitudinal beams are slidably mounted on the crossbeam via a first linear guide pair.

[0017] As a further improvement of this utility model, the centering clamping mechanism includes a guide rail plate fixed on the longitudinal beam, a second left-right rotating T-shaped lead screw mounted on the guide rail plate, a third handwheel for driving the second left-right rotating T-shaped lead screw, and two second lead screw nuts that are engaged with the two sections of the second left-right rotating T-shaped lead screw with opposite rotation directions and are respectively connected to two sliding table pressure plates through nut seats. The two sliding table pressure plates are driven to move towards each other or away from each other by shaking the third handwheel.

[0018] As a further improvement of this utility model, the two sliding pressure plates are mounted on the guide rail plate in a way that allows them to slide up and down via the second linear guide rail pair.

[0019] As a further improvement of this utility model, the upper and lower sides of the second left-hand and right-hand T-shaped lead screw are respectively mounted on the guide rail plate through the second support bearing seat and the second fixed bearing seat.

[0020] As a further improvement of this utility model, a buffer plate for contacting the battery pack is installed on the slide pressure plate.

[0021] By means of the above solution, this utility model has at least the following advantages:

[0022] This invention enables rapid clamping of battery packs. The frame size and gripper position can be infinitely adjusted through a screw and slide rail mechanism, allowing for quick adaptation to battery packs of different shapes and sizes, and compatibility with multiple specifications.

[0023] This utility model can achieve 180-degree rotation, has a self-locking reducer, and is easy to disassemble and hoist after rotation.

[0024] This invention uses a buffer plate to contact the battery pack and disperses the clamping force through multi-point centering clamping, avoiding the damage to the battery pack shell and disassembly difficulties caused by traditional screw locking.

[0025] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0026] 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.

[0027] Figure 1 This is a schematic diagram of the structure of a flipping device for repairing a power battery pack according to this utility model;

[0028] Figure 2 yes Figure 1 A structural diagram after the battery pack has been removed;

[0029] Figure 3 yes Figure 2 A structural diagram of the inverter and base assembly;

[0030] Figure 4 yes Figure 2 A schematic diagram of the structure of the mid-position frame component;

[0031] Figure 5 yes Figure 2 A schematic diagram of the center-to-center clamping mechanism.

[0032] The meanings of the labels in the figures are as follows.

[0033] 1. Battery pack; 2. Tilting machine; 3. Base assembly; 4. Positioning frame assembly; 5. Centering clamping mechanism; 6. First handwheel; 7. Worm gear reducer; 8. Bearing seat; 9. Bearing shim block; 10. Welded base; 11. Support base; 12. Caster wheel; 13. Support foot pad; 14. Drive shaft; 15. Driven shaft; 16. Crossbeam; 17. First support bearing seat; 18. First left / right turning T-shaped lead screw; 19. Longitudinal beam; 20. First linear guide pair; 21. First fixed bearing seat; 22. Second handwheel; 23. First lead screw nut; 24. Second linear guide pair; 25. Guide plate; 26. Second support bearing seat; 27. Second left / right turning T-shaped lead screw; 28. Buffer plate; 29. ​​Slide pressure plate; 30. Second lead screw nut; 31. Nut seat; 32. Second fixed bearing seat; 33. Third handwheel. Detailed Implementation

[0034] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. 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 present 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.

[0036] The first embodiment of this utility model:

[0037] like Figure 1 and Figure 2 This embodiment describes a flipping device for repairing a power battery pack. The device includes a base assembly 3, which comprises two welded bases 10 on the left and right sides. The device also includes a flipping machine 2, which has a worm gear reducer 7, a bearing 8 with a mounting seat, and a first handwheel 6 mounted on the welded bases 10.

[0038] like Figure 3 The bearing 8 is mounted on the welding base 10 via bearing shims 9. The base assembly 3 also includes a support base 11, with two support bases 11 mounted on the left and right sides respectively. Several casters 12 and support pads 13 are installed at the bottom of the support base 11 for moving and stabilizing the equipment.

[0039] like Figure 4 The core of the equipment is the displacement frame assembly 4, which includes two horizontal beams 16 that are parallel to each other on the left and right, and two vertical beams 19 that are parallel to each other on the front and back between the two horizontal beams 16.

[0040] Two crossbeams 16 are rotatably mounted on two bearings 8 via a drive shaft 14 and a driven shaft 15, respectively, allowing the entire displacement frame assembly 4 to rotate around its axis. By cranking the first handwheel 6 to drive the worm gear reducer 7, the entire displacement frame assembly 4 can be rotated.

[0041] To clamp the battery pack 1, the device is equipped with a front-to-back drive mechanism mounted on the crossbeam 16, which drives the two longitudinal beams 19 to move synchronously towards or away from each other, clamping or releasing the battery pack 1 from the front-to-back direction. Specifically, the two longitudinal beams 19 are slidably mounted on the crossbeam 16 via a first linear guide pair 20. The front-to-back drive mechanism includes a first left-to-right turning T-shaped lead screw 18 mounted on the crossbeam 16, a second handwheel 22 that drives the first left-to-right turning T-shaped lead screw 18, and two first lead screw nuts 23 that engage with the two sections of the first left-to-right turning T-shaped lead screw 18 with opposite threads.

[0042] The front and rear sides of the first left-hand and right-hand T-shaped lead screw 18 are respectively mounted on the crossbeam 16 through the first support bearing seat 17 and the first fixed bearing seat 21.

[0043] The two first lead screw nuts 23 are respectively connected to the two longitudinal beams 19, so the two longitudinal beams 19 can be moved by turning the second handwheel 22.

[0044] like Figure 5 The equipment is also equipped with at least one centering clamping mechanism 5 installed on the longitudinal beam 19 for clamping the battery pack 1 in the vertical direction.

[0045] Each centering and clamping mechanism 5 includes a guide rail plate 25 fixed to the longitudinal beam 19, a second left- or right-hand rotating T-shaped lead screw 27 mounted on the guide rail plate 25, a third handwheel 33 driving the second left- or right-hand rotating T-shaped lead screw 27, and two second lead screw nuts 30 that engage with the two sections of the second left- or right-hand rotating T-shaped lead screw 27 with opposite threads. The two second lead screw nuts 30 are respectively connected to two slide plate pressure plates 29 via nut seats 31. The two slide plate pressure plates 29 are slidably mounted on the guide rail plate 25 via a second linear guide pair 24.

[0046] The upper and lower sides of the second left-hand and right-hand T-shaped lead screw 27 are respectively mounted on the guide rail plate 25 via the second support bearing seat 26 and the second fixed bearing seat 32. A buffer plate 28 for contacting the battery pack 1 is installed on the slide pressure plate 29.

[0047] By cranking the third handwheel 33, the two sliding pressure plates 29 can be driven to move towards or away from each other, thereby clamping or releasing the battery pack 1.

[0048] The second embodiment of this utility model:

[0049] like Figures 1-5 As shown in the figure, this embodiment provides a flipping device for power battery pack maintenance. The device is purely mechanical and manually operated, and is suitable for maintenance workshops.

[0050] Overall structure: The equipment mainly consists of a stable base, a drive unit that provides the power for flipping, and a frame unit for clamping and adjustment.

[0051] Base assembly 3 and flipping mechanism 2:

[0052] The equipment's support base consists of two symmetrically arranged support bases 11. Each support base 11 is equipped with multiple casters 12 and adjustable support pads 13 at its bottom, which facilitates equipment movement and on-site leveling and fixing.

[0053] On each support base 11, a welded base 10 made of heavy steel is fixed. Three sets of bearing shims 9 are symmetrically installed on the two welded bases 10, and a seated bearing 8 is installed on each set of shims. Two seated bearings 8 on one side are used to support the drive shaft 14, and one seated bearing 8 on the other side is used to support the driven shaft 15.

[0054] A worm gear reducer 7 is also fixedly mounted on the welded base 10 on the side where the drive shaft 14 is installed. The output shaft of the reducer is coaxially connected to the drive shaft 14, and a first handwheel 6 is installed on its input shaft. The worm gear reducer 7 has a self-locking function to ensure safety during the tilting process.

[0055] Variable frame component 4:

[0056] This component is a rectangular frame that directly supports and holds the battery pack 1. Its main body includes two parallel and robust crossbeams 16.

[0057] Two crossbeams 16 are fixedly connected to the drive shaft 14 and the driven shaft 15 respectively, so that the entire displacement frame assembly 4 is rotatably supported on the base assembly 3.

[0058] Between the two crossbeams 16, two longitudinal beams 19 are arranged in parallel. Each crossbeam 16 is equipped with two sets of first linear guide rail pairs 20, and the ends of the two longitudinal beams 19 are mounted on the corresponding guide rail pairs by sliders, so that the longitudinal beams 19 can slide smoothly back and forth relative to the crossbeams 16, thereby changing the internal length of the rectangular frame.

[0059] Front and rear drive mechanisms:

[0060] This mechanism drives the two longitudinal beams 19 to move synchronously, thereby clamping the battery pack in the front-to-back direction. The core of the mechanism is the first left- or right-hand T-shaped lead screw 18 mounted on each crossbeam 16.

[0061] The first left- or right-hand T-shaped lead screw 18 is rotatably mounted on the crossbeam 16 via a first fixed bearing seat 21 at one end and a first support bearing seat 17 at the other end, and a second handwheel 22 is installed at one end of the lead screw.

[0062] On the first left-hand and right-hand T-shaped lead screw 18, each of the two threads with opposite directions of rotation is equipped with a first lead screw nut 23. These two first lead screw nuts 23 are fixedly connected to the two longitudinal beams 19 respectively through connectors (not shown in the figure).

[0063] When the second handwheel 22 is turned clockwise or counterclockwise, the first left- or right-hand T-shaped lead screw 18 rotates, driving the two first lead screw nuts 23 to move the two longitudinal beams 19 synchronously towards or away from each other.

[0064] Centering clamping mechanism 5:

[0065] This mechanism is used to clamp the battery pack from both the left and right sides. In this embodiment, two such mechanisms are symmetrically installed on each longitudinal beam 19, for a total of four sets.

[0066] Each mechanism includes a guide rail plate 25 vertically fixed to the longitudinal beam 19. Two sets of vertically arranged second linear guide rail pairs 24 are mounted on the guide rail plate 25.

[0067] A second left- or right-hand T-shaped lead screw 27 is rotatably mounted in the middle of the guide rail plate 25 via an upper second fixed bearing seat 32 and a lower second support bearing seat 26, and a third handwheel 33 is mounted on the lower end of the lead screw.

[0068] Two sliding pressure plates 29 are mounted on the second linear guide pair 24 via sliders and can slide up and down along the guide rail. Each sliding pressure plate 29 has a rubber or polyurethane buffer plate 28 installed on its inner side (opposite side) to protect the battery pack casing.

[0069] On the second left-hand and right-hand T-shaped lead screw 27, there is a second lead screw nut 30 on each of the two threads with opposite directions of rotation. Each second lead screw nut 30 is fixedly connected to the corresponding slide plate 29 through a nut seat 31.

[0070] By cranking the third handwheel 33, the two slide pressure plates 29, along with the buffer plates 28, can move synchronously towards each other (clamping) or away from each other (releasing).

[0071] The working process of this embodiment:

[0072] Preparation phase: Move the equipment to the work area, level it using the support feet 13 and lock it in place to make it stable.

[0073] Place the battery pack: Using a workshop crane or forklift, lift the battery pack 1 to be repaired horizontally to the center of the rectangular frame of the displacement frame assembly 4 and place it roughly stably.

[0074] Clamping in the front and rear directions: According to the actual length of the battery pack 1, the operator simultaneously cranks the second handwheels 22 on both crossbeams 16 (one side can also be cranked individually, but due to the lead screw drive, the two longitudinal beams will move in tandem). Through the transmission of the first left-right rotating T-shaped lead screw 18, the two longitudinal beams 19 are driven to move towards each other until the inner side of the longitudinal beam 19 (or other positioning blocks installed on the longitudinal beam) gently contacts the front and rear end faces of the battery pack 1, completing the front and rear alignment and pre-tightening.

[0075] Vertical clamping: Based on the width of the battery pack 1, sequentially crank the third handwheels 33 on the four centering clamping mechanisms 5. Each third handwheel 33 drives the corresponding second left-right rotating T-shaped lead screw 27, causing the upper and lower sliding pressure plates 29 on that station to move synchronously towards each other until the buffer plate 28 is firmly and evenly pressed against the left and right sides of the battery pack 1. The four-point clamping ensures the stability of the battery pack in the vertical direction.

[0076] Flipping Operation: After confirming that the battery pack 1 is reliably clamped, an operator slowly cranks the first handwheel 6. The power, amplified and self-locked by the worm gear reducer 7, drives the entire displacement frame assembly 4 and battery pack 1 to rotate smoothly via the drive shaft 14. This allows it to be flipped 180 degrees, with the bottom of the battery pack facing upwards, facilitating maintenance work such as water-cooling plate replacement and cell disassembly. Its self-locking feature allows it to remain safely at any angle.

[0077] Remove the battery pack: After maintenance, reverse the first handwheel 6 to restore battery pack 1 to a horizontal position. Then, reverse the operation of each third handwheel 33 and the second handwheel 22 to release all clamping mechanisms. Finally, use a crane or forklift to lift battery pack 1 off the equipment, completing the entire maintenance and flipping process.

[0078] This embodiment can quickly clamp various large battery packs and achieve rapid 180-degree rotation for convenient maintenance and diagnosis. The water-cooling plate at the bottom of the battery pack can only be replaced after the product has been rotated 180 degrees, or the internal cells can be pressed out. The equipment uses a Q235 square tube welded integrated base, and the drive end uses a worm gear reducer with a handwheel. The product rotation is achieved by manually cranking the handwheel. The product clamping uses a manual centering and clamping mechanism, and it can accommodate battery packs with a maximum width of 1.8 meters, a length of 2.5 meters, and a thickness of 0.3 meters. It has high product specification compatibility; one machine in a repair shop can accommodate the rotation of multiple battery pack sizes.

[0079] The left-right, front-back, and up-down directions shown in this article are all based on... Figure 1 Mainly.

[0080] This invention enables rapid clamping of battery packs. The frame size and gripper position are infinitely adjustable via a screw-rail mechanism, allowing for quick adaptation to battery packs of different shapes and sizes, and compatibility with multiple specifications. It features 180-degree rotation and a self-locking reducer, facilitating easy disassembly and lifting after rotation. A buffer plate contacts the battery pack, and multi-point centering clamping disperses the clamping force, avoiding damage to the battery pack casing and disassembly difficulties caused by traditional screw tightening.

[0081] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0082] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0083] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A turnover device for servicing a power battery pack, characterized in that include: The base assembly (3) includes two welded bases (10) on the left and right sides; The tilting machine (2) includes a worm gear reducer (7), a seated bearing (8), and a first handwheel (6) mounted on a welded base (10). The displacement frame assembly (4) includes two horizontal beams (16) that are parallel to each other on the left and right. Two vertical beams (19) that are parallel to each other in front and behind are installed between the two horizontal beams (16). The two horizontal beams (16) are rotatably mounted on two bearings (8) with seats via a drive shaft (14) and a driven shaft (15), respectively. The worm gear reducer (7) is driven by shaking the first handwheel (6) and the displacement frame assembly (4) is rotated. The front and rear drive mechanism installed on the crossbeam (16) drives the two longitudinal beams (19) to move synchronously towards or away from each other, so as to clamp or release the battery pack (1) from the front and rear directions. At least one centering clamping mechanism (5) is installed on the longitudinal beam (19) for clamping the battery pack (1) in the up-down direction along the battery pack (1).

2. The flipping device for power battery pack maintenance as described in claim 1, characterized in that, The bearing (8) with a seat is mounted on the welding base (10) by a bearing shim (9). The base assembly (3) also includes a support base (11). The two support bases (11) are respectively mounted on the left and right sides of the support base (11). Several casters (12) and support pads (13) are installed at the bottom of the support base (11).

3. The flip device for servicing a power battery pack of claim 1, wherein, The front and rear drive mechanism includes a first left-right rotating T-shaped lead screw (18) mounted on a crossbeam (16), a second handwheel (22) that drives the first left-right rotating T-shaped lead screw (18) to drive the transmission, and two first lead screw nuts (23) that are engaged with two sections of threads with opposite rotation directions on the first left-right rotating T-shaped lead screw (18); the two first lead screw nuts (23) are respectively connected to two longitudinal beams (19), and the two longitudinal beams (19) are driven to move towards or away from each other by shaking the second handwheel (22).

4. The flip device for servicing a power battery pack of claim 3, wherein, The front and rear sides of the first left-right rotating T-shaped lead screw (18) are respectively mounted on the crossbeam (16) through the first support bearing seat (17) and the first fixed bearing seat (21).

5. The flip device for servicing a power battery pack of claim 3, wherein, The two longitudinal beams (19) are slidably mounted on the crossbeam (16) via a first linear guide pair (20).

6. The flipping device for power battery pack maintenance as described in claim 1, characterized in that, The centering clamping mechanism (5) includes a guide rail plate (25) fixed on the longitudinal beam (19), a second left-right rotating T-shaped lead screw (27) mounted on the guide rail plate (25), a third handwheel (33) that drives the second left-right rotating T-shaped lead screw (27), and two second lead screw nuts (30) that are engaged with two sections of threads with opposite directions on the second left-right rotating T-shaped lead screw (27) and are respectively connected to two slide pressure plates (29) through nut seats (31). By shaking the third handwheel (33), the two slide pressure plates (29) are driven to move towards or away from each other.

7. The flip device for servicing a power battery pack of claim 6, wherein, The two slide plates (29) are mounted on the guide plate (25) and can slide up and down via the second linear guide pair (24).

8. The flip device for servicing a power battery pack of claim 6, wherein, The second left and right rotation T-shaped screw rod (27) is installed on the guide rail plate (25) through the second support bearing seat (26) and the second fixed bearing seat (32) on the upper and lower sides respectively.

9. The flip device for servicing a power battery pack of claim 6, wherein, A buffer plate (28) for contacting the battery pack (1) is installed on the sliding table pressing plate (29).

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