Device for rubbing test of battery pack

Abstract

The utility model relates to the technical field of battery pack rubbing test, in particular to a device for rubbing test of a battery pack. Comprising a mounting box, a U-shaped mounting frame is slidably mounted at the top of the mounting box, a rubbing test block is arranged in the U-shaped mounting frame, a U-shaped support is fixedly mounted at the top of the mounting box, a transverse plate is placed on the rubbing test block, two supports are fixedly mounted at the top of the transverse plate, and two electric cylinders are fixedly mounted at the top of the U-shaped support. Output rods of the electric cylinders penetrate through the U-shaped supports in a sliding mode and are hinged to the corresponding supports, and two clamping plates are installed at the bottom of the transverse plate in a sliding mode. Through a simple clamping and lifting structure, battery packs of different sizes can be conveniently fixed and the angle of the battery packs can be conveniently adjusted, so that the condition that the battery packs pass through different road surfaces when the battery packs are mounted at the vehicle bottom can be effectively simulated, the test situation can be effectively expanded, and the actual test requirements of the battery packs can be effectively met.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack scratch testing, in particular to a device for battery pack scratch testing. Background Art

[0002] With the continuous development of science and technology, electric vehicles have made great progress. A large number of electric vehicles have been produced. Battery packs are widely used as the power source of electric vehicles. The current electric vehicle battery packs are generally installed on the bottom of the electric vehicle. The problem of battery packs being scratched often occurs during the driving of the electric vehicle. Therefore, it is necessary to perform a scratch test on the produced battery packs. The prior art discloses a device for battery pack scratch testing with an authorization announcement number of CN220751593U. The device includes a test bench, multiple protrusion mechanisms, a slide rail, a battery pack assembly mechanism, and a drive mechanism; the test bench is provided with multiple The mounting hole is used to install a protrusion mechanism. When different protrusion structures are installed in the mounting hole, the heights in the vertical direction are the same or different. The protrusion mechanism is used as an obstacle when performing a scratch test. The slide rail is fixedly arranged on the test bench, and the battery pack assembly mechanism is slidably connected to the slide rail. The battery pack assembly mechanism includes an assembly component, which is used to fix the battery pack, and when the battery pack passes through protrusion mechanisms of different heights, the battery pack moves up and down with the change of the height of the protrusion mechanism. The driving mechanism is connected to the battery pack assembly mechanism, and the driving mechanism is used to drive the battery pack assembly mechanism to slide on the slide rail so that the battery pack passes through the protrusion mechanism.

[0003] However, it was found during use that the above design is not convenient for fixing and adjusting the angle of battery packs of different sizes, and it is difficult to effectively simulate the situation where the battery pack is installed on the bottom of the vehicle and passes through different road surfaces, resulting in limited test scenarios and difficulty in meeting the actual testing needs of the battery pack. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a device for battery pack scratch testing, which is convenient for fixing battery packs of different sizes and adjusting the angle, can effectively simulate the situation where the battery pack is installed on the bottom of the vehicle and passes through different road surfaces, can effectively expand the test scenarios, can effectively meet the actual testing needs of the battery pack, and solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the technical solution adopted by the utility model is: a device for battery pack scratch testing, comprising a mounting box, a U-shaped mounting frame is slidably mounted on the top of the mounting box, a scratch test block is arranged in the U-shaped mounting frame, a U-shaped bracket is fixedly mounted on the top of the mounting box, a cross plate is placed on the top of the scratch test block, two brackets are fixedly mounted on the top of the cross plate, two electric cylinders are fixedly mounted on the top of the U-shaped bracket, the output rods of the electric cylinders slide through the U-shaped bracket and are hinged to the corresponding brackets, two clamping plates are slidably mounted on the bottom of the cross plate, the same battery pack is arranged on the two clamping plates, the scratch test block is in contact with the battery pack, and two first sliding grooves are provided at the bottom of the cross plate. A first slider is slidably installed in the groove, the first slider is fixed on the top of the corresponding clamping plate, the two first sliders are threaded with the same bidirectional screw rod, the bottom of the cross plate is provided with a groove, the bidirectional screw rod rotates through the groove and is fixedly sleeved with a first bevel gear, a motor is fixedly installed on the top of the cross plate, the output shaft of the motor extends into the groove and is provided with a second bevel gear, the second bevel gear is meshed with the first bevel gear, two first rectangular through grooves are penetrated on the top inner wall of the installation box, a vertical plate is slidably penetrated in the first rectangular through groove, the vertical plate is fixed to the bottom of the U-shaped installation frame, two cylinders are fixedly installed on the top inner wall of the installation box, and the output rods of the cylinders are fixed on the corresponding vertical plates.

[0006] In order to facilitate the quick replacement of different scratch test blocks:

[0007] As a further improvement of the above technical solution: the scratch test block also includes four slots arranged in a rectangular array, the slots are opened on one side of the scratch test block, an insertion rod is slidably installed in the slot, both sides of the U-shaped mounting frame are fixed and penetrated by a rectangular cover, one end of the insertion rod is slidably installed in the corresponding rectangular cover, and a screw rod is threadedly installed on the insertion rod.

[0008] The beneficial effect of this improvement is that through such an arrangement, it is convenient to quickly assemble and disassemble the scratch test block, and then it is convenient to quickly replace different scratch test blocks, so as to facilitate different scratch tests.

[0009] To prevent the cross board from shaking and shifting:

[0010] As a further improvement of the above technical solution: a second rectangular through groove is penetrated on the inner walls on both sides of the U-shaped bracket, a second slider slides through the second rectangular through groove, a sliding rod slides through the second slider, and one end of the sliding rod is hinged to one side of the cross plate.

[0011] The beneficial effect of this improvement is that by such an arrangement, the horizontal plate can be prevented from shaking and shifting.

[0012] To prevent the first slider from falling out of the first slide slot:

[0013] As a further improvement of the above technical solution: a third rectangular through groove is penetrated on the top inner wall of the first slide groove, a T-shaped slider slides through the third rectangular through groove, the T-shaped slider is fixed on the top of the corresponding first slider, and the T-shaped slider is slidably connected to the top of the cross plate.

[0014] The beneficial effect of this improvement is that, by such an arrangement, the first sliding block can be prevented from escaping from the first sliding groove.

[0015] In order to facilitate the electric cylinder to adjust the angle of the cross plate:

[0016] As a further improvement of the above technical solution: the bracket is a U-shaped structure, a sleeve is rotatably mounted on the bracket, the output rod of the electric cylinder is fixed on the sleeve, the U-shaped bracket has two circular holes, and the output rod of the electric cylinder slides through the corresponding circular holes.

[0017] The beneficial effect of this improvement is that by providing the sleeve, the electric cylinder can adjust the angle of the cross plate more easily.

[0018] In order to facilitate the support and limit of the bidirectional screw:

[0019] As a further improvement of the above technical solution: a first through hole is passed through the groove and the corresponding first slide groove, the bidirectional screw rotates through the two first through holes, a second through hole is passed through the top inner wall of the groove, and the output shaft of the motor rotates through the second through hole.

[0020] The beneficial effect of this improvement is that by providing the first through hole, it is convenient to support and limit the bidirectional screw rod.

[0021] To prevent the second slider from falling out of the second rectangular slot:

[0022] As a further improvement of the above technical solution: a limiting rod is fixedly installed in the second rectangular through groove, and the limiting rod slides through the second sliding block.

[0023] The beneficial effect of this improvement is that by providing a limiting rod, the second sliding block is prevented from being separated from the second rectangular through groove.

[0024] In order to facilitate the support and limitation of the screw rod:

[0025] As a further improvement of the above technical solution: a threaded through hole is passed through the insertion rod, the screw rod is threadedly installed in the threaded through hole, a third through hole is passed through the inner wall of one side of the rectangular cover, the screw rod rotates and passes through the third through hole, a second sliding groove is opened on the top and bottom inner walls of the rectangular cover, a limit block is slidably installed in the second sliding groove, and the limit block is fixed on the insertion rod.

[0026] The beneficial effect of this improvement is that by providing the third through hole, it is convenient to support and limit the screw rod.

[0027] The beneficial effects of the utility model are: through a simple clamping and lifting structure, it is convenient to fix and adjust the angle of battery packs of different sizes, thereby effectively simulating the situation where the battery pack is installed on the bottom of the vehicle passing through different road surfaces, which can effectively expand the test scenarios and effectively meet the actual testing needs of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0029] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of part A;

[0030] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of part B;

[0031] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure of the middle C part;

[0032] Figure 5 It is a schematic diagram of the three-dimensional cross-sectional assembly structure of the clamping plate and the first sliding block in the utility model;

[0033] Figure 6 For this utility model Figure 4 A schematic diagram of the enlarged structure of the D part;

[0034] Figure 7 It is a schematic diagram of the three-dimensional cross-sectional structure of the second sliding block in the utility model.

[0035] In the figure: 1. installation box; 2. U-shaped installation frame; 3. scratch test block; 4. U-shaped bracket; 5. horizontal plate; 6. bracket; 7. electric cylinder; 8. clamping plate; 9. battery pack; 10. first slide groove; 11. first slider; 12. bidirectional screw rod; 13. groove; 14. first bevel gear; 15. motor; 16. second bevel gear; 17. first rectangular through groove; 18. vertical plate; 19. cylinder; 20. slot; 21. plug rod; 22. rectangular cover; 23. screw rod; 24. second rectangular through groove; 25. second slider; 26. slide rod. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0037] like Figure 1-7As shown, a device for battery pack scratch test comprises an installation box 1, a U-shaped installation frame 2 is slidably installed on the top of the installation box 1, a scratch test block 3 is arranged in the U-shaped installation frame 2, a U-shaped bracket 4 is fixedly installed on the top of the installation box 1, a cross plate 5 is placed on the scratch test block 3, two brackets 6 are fixedly installed on the top of the cross plate 5, two electric cylinders 7 are fixedly installed on the top of the U-shaped bracket 4, the output rods of the electric cylinders 7 slide through the U-shaped bracket 4 and are hinged to the corresponding brackets 6, two clamping plates 8 are slidably installed on the bottom of the cross plate 5, the same battery pack 9 is arranged on the two clamping plates 8, the scratch test block 3 is in contact with the battery pack 9, and two first slide grooves 10 are provided at the bottom of the cross plate 5, and the first slide grooves 10 are provided in A first slider 11 is slidably installed, and the first slider 11 is fixed on the top of the corresponding clamping plate 8. The two first sliders 11 are threaded with the same bidirectional screw 12. A groove 13 is opened at the bottom of the cross plate 5. The bidirectional screw 12 rotates through the groove 13 and is fixedly sleeved with a first bevel gear 14. A motor 15 is fixedly installed on the top of the cross plate 5. The output shaft of the motor 15 extends into the groove 13 and is provided with a second bevel gear 16. The second bevel gear 16 is meshed with the first bevel gear 14. Two first rectangular through grooves 17 are penetrated on the top inner wall of the installation box 1. A vertical plate 18 is slidably penetrated in the first rectangular through groove 17. The vertical plate 18 is fixed to the bottom of the U-shaped installation frame 2. Two cylinders 19 are fixedly installed, and the output rods of the cylinders 19 are fixed on the corresponding vertical plates 18. Through a simple clamping and lifting structure, it is convenient to fix and adjust the angles of battery packs 9 of different sizes, so as to effectively simulate the situation where the battery pack 9 is installed on the bottom of the vehicle and passes through different road surfaces, and can effectively expand the test scenarios, so as to effectively meet the actual test needs of the battery pack 9. The scratch test block 3 also includes four slots 20 arranged in a rectangular array, and the slots 20 are opened on one side of the scratch test block 3. A plug rod 21 is slidably installed in the slot 20, and rectangular covers 22 are fixed on both sides of the U-shaped mounting frame 2 and penetrated, and one end of the plug rod 21 is slidably installed in the corresponding rectangular cover 22, and a threaded plug rod 21 is installed on the plug rod 21. The screw rod 23 is arranged in this way, so that it is convenient to quickly assemble and disassemble the scratch test block 3, and then it is convenient to quickly replace different scratch test blocks 3, so as to facilitate different scratch tests. The inner walls on both sides of the U-shaped bracket 4 are penetrated by second rectangular through grooves 24, and a second slider 25 is slidably penetrated in the second rectangular through groove 24, and a sliding rod 26 is slidably penetrated on the second slider 25, and one end of the sliding rod 26 is hinged to one side of the cross plate 5. Through this arrangement, the cross plate 5 can be prevented from shaking and moving sideways. A third rectangular through groove is penetrated on the top inner wall of the first slide groove 10, and a T-shaped slider is slidably penetrated in the third rectangular through groove, and the T-shaped slider is fixed to the top of the corresponding first slider 11, and the T-shaped slider is slidably connected to the top of the cross plate 5.By such arrangement, the first slider 11 can be prevented from disengaging from the first slide groove 10. The bracket 6 is a U-shaped structure. A sleeve is rotatably sleeved on the bracket 6. The output rod of the electric cylinder 7 is fixed on the sleeve. Two round holes are penetrated on the U-shaped bracket 4. The output rod of the electric cylinder 7 slides through the corresponding round holes. By arranging the sleeve, it is convenient for the electric cylinder 7 to adjust the angle of the cross plate 5. A first through hole is penetrated between the groove 13 and the corresponding first slide groove 10. The bidirectional lead screw 12 rotates through the two first through holes. A second through hole is penetrated on the top inner wall of the groove 13. The output shaft of the motor 15 rotates through the second through hole. By arranging the first through hole, it is convenient to adjust the bidirectional lead screw 12. The second rectangular slot 24 is fixed with a limit rod, which slides through the second slider 25. The limit rod is set to prevent the second slider 25 from escaping from the second rectangular slot 24. The plug rod 21 is penetrated by a threaded through hole, and the screw rod 23 is threadedly installed in the threaded through hole. A third through hole is penetrated on one side inner wall of the rectangular cover 22, and the screw rod 23 rotates through the third through hole. The top and bottom inner walls of the rectangular cover 22 are provided with a second slide groove, and a limit block is slidably installed in the second slide groove. The limit block is fixed on the plug rod 21. The third through hole is set to facilitate the support and limitation of the screw rod 23.

[0038] The working principle of the utility model is as follows: when in use, the battery pack 9 is first placed under the horizontal plate 5, and then the motor 15 is turned on. The output shaft of the motor 15 drives the second bevel gear 16 to rotate, and the second bevel gear 16 drives the first bevel gear 14 to rotate, and the first bevel gear 14 drives the bidirectional screw rod 12 to rotate, so that the two first sliders 11 are driven to slide in the corresponding first slide grooves 10 and approach each other, so that the two clamping plates 8 are driven to slide at the bottom of the horizontal plate 5 and approach each other, and the two clamping plates 8 clamp the battery pack 9, and then the two electric cylinders 7 are turned on, and the output rods of the two electric cylinders 7 extend and The two brackets 6 are retracted, so that the height of the two brackets 6 is adjusted. At the same time, the two brackets 6 drive the cross plate 5 to rotate, and the cross plate 5 drives the two clamping plates 8 and the battery pack 9 to rotate until the angle of the battery pack 9 is appropriate and the battery pack 9 contacts the scratch test block 3. The cross plate 5 rotates and drives the two slide bars 26 to rise or fall respectively, so that the two second slide blocks 25 are driven by the slide bars 26 to slide up or down in the corresponding second rectangular through grooves 24. At the same time, the slide bars 26 are driven to slide horizontally on the corresponding second slide blocks 25. Then the two cylinders 19 are turned on, and the output rods of the cylinders 19 drive the corresponding vertical plates 18 to move upward or downward. The U-shaped mounting frame 2 slides in the first rectangular through groove 17, so that the two vertical plates 18 drive the U-shaped mounting frame 2 to slide on the top of the mounting box 1, and the U-shaped mounting frame 2 drives the scratch test block 3 to move, so that the battery pack 9 is scratched by the scratch test block 3. Through such an arrangement, it is convenient to fix battery packs 9 of different sizes and adjust the angle, so as to effectively simulate the situation where the battery pack 9 is installed on the bottom of the vehicle and passes through different road surfaces, and can effectively expand the test scenarios, so as to effectively meet the actual test needs of the battery pack 9. When the scratch test block 3 needs to be replaced, the plurality of screw rods 23 are first rotated so that the insertion rod 21 is driven to slide The scratch test block 3 is automatically withdrawn from the corresponding slot 20 and enters the rectangular cover 22, so that the fixation of the scratch test block 3 is released. Then the scratch test block 3 is pulled out to make the scratch test block 3 separate from the U-shaped mounting frame 2. Then the required scratch test block 3 is placed in the U-shaped mounting frame 2, and the multiple screw rods 23 are rotated in the opposite direction, so that the multiple insertion rods 21 are driven to slide into the corresponding slots 20 respectively. The scratch test block 3 is fixed, and then the scratch test can be carried out. Through such an arrangement, it is convenient to quickly assemble and disassemble the scratch test block 3, and then it is convenient to quickly replace different scratch test blocks 3, so as to facilitate different scratch tests.

[0039] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0040] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A device for battery pack scratch testing, comprising a mounting box (1), characterized in that: A U-shaped installation frame (2) is slidably installed on the top of the installation box (1), a scratch test block (3) is arranged in the U-shaped installation frame (2), a U-shaped bracket (4) is fixedly installed on the top of the installation box (1), a cross plate (5) is placed on the top of the scratch test block (3), two brackets (6) are fixedly installed on the top of the cross plate (5), two electric cylinders (7) are fixedly installed on the top of the U-shaped bracket (4), the output rods of the electric cylinders (7) slide through the U-shaped bracket (4) and are hinged to the corresponding brackets (6), two clamping plates (8) are slidably installed on the bottom of the cross plate (5), the two clamping plates (8) are provided with the same battery pack (9), the scratch test block (3) is in contact with the battery pack (9), and two first sliding grooves (10) are provided at the bottom of the cross plate (5), a first sliding block (11) is slidably installed in the first sliding groove (10), and the first sliding block (11) is fixed on the corresponding clamping plate ( 8), the two first sliders (11) are threaded with the same bidirectional screw rod (12), the bottom of the horizontal plate (5) is provided with a groove (13), the bidirectional screw rod (12) rotates through the groove (13) and is fixedly sleeved with a first bevel gear (14), the top of the horizontal plate (5) is fixedly installed with a motor (15), the output shaft of the motor (15) extends into the groove (13) and is provided with a second bevel gear (16), the second bevel gear (16) is meshed with the first bevel gear (14), the top inner wall of the installation box (1) is penetrated with two first rectangular through grooves (17), the first rectangular through grooves (17) are slidably penetrated with a vertical plate (18), the vertical plate (18) is fixed to the bottom of the U-shaped installation frame (2), and the top inner wall of the installation box (1) is fixedly installed with two cylinders (19), the output rods of the cylinders (19) are fixed on the corresponding vertical plates (18).

2. The device for battery pack scratch testing according to claim 1, characterized in that: The scratch test block (3) further comprises four slots (20) arranged in a rectangular array, the slots (20) being opened on one side of the scratch test block (3), an insertion rod (21) being slidably mounted in the slots (20), rectangular covers (22) being fixed and penetrated on both sides of the U-shaped mounting frame (2), one end of the insertion rod (21) being slidably mounted in the corresponding rectangular cover (22), and a screw rod (23) being threadedly mounted on the insertion rod (21).

3. The device for battery pack scratch testing according to claim 1, characterized in that: The inner walls on both sides of the U-shaped bracket (4) are penetrated by second rectangular through grooves (24), a second sliding block (25) is slidably penetrated in the second rectangular through groove (24), a sliding rod (26) is slidably penetrated on the second sliding block (25), and one end of the sliding rod (26) is hinged to one side of the horizontal plate (5).

4. The device for battery pack scratch testing according to claim 1, characterized in that: A third rectangular through groove is penetrated on the top inner wall of the first sliding groove (10), a T-shaped slider is slidably penetrated in the third rectangular through groove, the T-shaped slider is fixed on the top of the corresponding first slider (11), and the T-shaped slider is slidably connected to the top of the cross plate (5).

5. The device for battery pack scratch testing according to claim 1, characterized in that: The bracket (6) is a U-shaped structure. A sleeve is rotatably mounted on the bracket (6). The output rod of the electric cylinder (7) is fixed on the sleeve. Two circular holes are penetrated on the U-shaped bracket (4). The output rod of the electric cylinder (7) slides through the corresponding circular holes.

6. The device for battery pack scratch testing according to claim 1, characterized in that: A first through hole is passed through the groove (13) and the corresponding first slide groove (10), the bidirectional screw rod (12) rotates through the two first through holes, a second through hole is passed through the top inner wall of the groove (13), and the output shaft of the motor (15) rotates through the second through hole.

7. The device for battery pack scratch testing according to claim 3, characterized in that: A limiting rod is fixedly installed in the second rectangular through groove (24), and the limiting rod slides through the second sliding block (25).

8. The device for battery pack scratch testing according to claim 2, characterized in that: The insert rod (21) is penetrated by a threaded through hole, the screw rod (23) is threadedly installed in the threaded through hole, a third through hole is penetrated on one side inner wall of the rectangular cover (22), the screw rod (23) rotates to penetrate the third through hole, and second sliding grooves are provided on the top and bottom inner walls of the rectangular cover (22), and a limit block is slidably installed in the second sliding groove, and the limit block is fixed on the insert rod (21).

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