New energy battery pack extrusion test bench

Abstract

The utility model discloses a new energy battery pack extrusion test bench, which comprises a test bench body, a rotating table, tooth blocks and a transmission gear, the top of the test bench body is connected with the rotating table through a shaft seat, one side surface of the rotating table is connected with the tooth blocks at equal intervals, and the rear side of the rotating table is provided with the transmission gear. Through the arrangement and cooperative use of the rotary driving mechanism, the transmission short rod, the transmission gear, the rotary table and the tooth block, the rotary table can be driven to rotate by utilizing the meshing contact state of the transmission gear and the tooth block when the transmission gear is driven to rotate, so that the extrusion direction of the battery pack body is changed, and two-side switching is realized; according to the device, the battery pack body does not need to be manually adjusted, the working procedure of manually moving the battery pack can be omitted through the rotating effect of the rotating table, and potential safety hazards caused by the battery pack are completely eradicated.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion test benches, in particular to an extrusion test bench for new energy battery packs. Background Art

[0002] Most of the existing battery pack safety testing technologies use extrusion tests or simulation methods. The extrusion test can make a more accurate assessment of the safety performance of the battery pack. The current common method is to use a battery pack extrusion tester to perform an extrusion test.

[0003] When performing an extrusion test on a battery pack, it is necessary to extrude it in both the X-axis and Y-axis directions. Usually, after completing the extrusion in the X-axis direction, the position of the battery pack is adjusted, and then the extrusion in the Y-axis direction is performed. When adjusting the position of the battery pack, the staff is usually required to make adjustments. Since the battery pack has been extruded in the X-axis direction at this time, there is a certain stress in the internal components. When the staff moves the battery pack at a close distance, the battery pack may suddenly catch fire, burn or even explode, which poses a great hidden danger to the safety of the staff and needs to be developed urgently. Utility Model Content

[0004] The purpose of the utility model is to provide a new energy battery pack extrusion test bench to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new energy battery pack extrusion test bench, comprising a test bench body, a rotating table, a tooth block and a transmission gear, the top of the test bench body is connected to the rotating table through an axle seat, one side surface of the rotating table is connected with tooth blocks at equal intervals, a transmission gear is arranged on the rear side of the rotating table, the surface of the transmission gear is in meshing contact with the tooth block, a transmission short rod is connected to the inside of the transmission gear, a rotation drive mechanism is installed at one end of the transmission short rod, the rotation drive mechanism is embedded and installed in the top of the test bench body, one side of the top of the test bench body is connected to a support platform, a hydraulic cylinder is installed on the top of the support platform, and an extrusion head is connected to the output end of the hydraulic cylinder.

[0006] Preferably, a movable cavity is connected to the middle of the test bench body, a movable cylinder is arranged inside the movable cavity, both sides of the movable cavity are connected to limiting slide grooves, the tops of both sides of the movable cylinder are connected to limiting sliders matching the limiting slide grooves, and both sides of the bottom of the test bench body are connected to movable casters, and the limiting sliders slide along the limiting slide grooves to limit the auxiliary movable cylinder to move up and down linearly along the screw.

[0007] Preferably, two limit supports are symmetrically connected to the bottom of the rotating table, and a limit groove matching the limit support is connected to the surface of the top of the test bench body. The limit support slides along the limit groove to assist the rotating table to rotate stably.

[0008] Preferably, a battery pack body is placed on the top of the rotating table, a force-bearing plate is provided on one side and the rear side of the rotating table, a limiting plate is provided on one side and the rear side of the force-bearing plate, the limiting plate and the bottom of the force-bearing plate are fixedly connected to the surface of the top of the rotating table, the force-bearing plate limits the battery pack body, improves the stability of the extrusion test, and the limiting plate assists in limiting the force-bearing plate, and also facilitates the subsequent disassembly and replacement of the force-bearing plate.

[0009] Preferably, a positioning strip is connected to the upper portion of the limiting plate, and a positioning groove matching the positioning strip is connected to one side and the rear side of the force-bearing plate.

[0010] Preferably, the top of the movable cavity is connected to a screw rod, the movable cylinder is sleeved on the outside of the screw rod, the bottom of the movable cylinder is connected to a limiting plate, and the bottom and both sides of the limiting plate are provided with friction-increasing bottom pads, which can increase friction when in contact with the ground, thereby limiting the movement of the movable casters.

[0011] Preferably, one end of the screw is connected to a toothed disc, one side of the top of the toothed disc is provided with a bevel gear in toothed contact, the inside of the bevel gear is connected to a long transmission rod, the long transmission rod extends to one side of the test bench body and is connected to a hand-controlled crank handle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) This new energy battery pack extrusion test bench realizes the driving of the transmission gear to rotate by setting and coordinating the rotation drive mechanism, the transmission short rod, the transmission gear, the rotating table and the tooth block, so that the rotating table can be driven to rotate by utilizing the meshing contact state between the transmission gear and the tooth block, so as to change the extrusion direction of the battery pack body, realize the switching between the two sides, and make the extrusion head better extrude the battery pack body to realize the extrusion test. The device does not need to manually adjust the battery pack body, and can be operated by the rotation of the rotating table, thereby eliminating the process of manually moving the battery pack and eliminating the safety hazards caused by the battery pack.

[0014] (2) This new energy battery pack extrusion test bench can limit the battery pack body by setting the stress plate, thereby improving the accuracy of the pressure test. The positioning strip and the positioning groove are slidably connected to realize the positioning of the stress plate, which is convenient for the subsequent replacement of the damaged stress plate separately, and is convenient and practical;

[0015] (3) This new energy battery pack extrusion test bench facilitates the movement of the entire test bench body by setting up mobile casters. The use height of the limiting plate can be adjusted by setting up and coordinating the use of a hand-controlled crank, a transmission long rod, a bevel gear, a mobile caster, a screw and a mobile cylinder. When the limiting plate moves between the two mobile casters and the bottom is in contact with the ground, it can limit the mobility of the mobile casters and increase friction when in contact with the ground. The movement of the test bench body can be limited, thereby improving the stability of the test bench body during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 This is a side view of the structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the top view structure of the load-bearing plate of the utility model.

[0020] In the figure: 1. test bench body; 2. rotating table; 3. limit plate; 301. positioning strip; 4. force plate; 401. positioning groove; 5. battery pack body; 6. shaft seat; 7. extrusion head; 8. hydraulic cylinder; 9. support table; 10. tooth block; 11. limit support; 12. limit groove; 13. movable cavity; 14. limit slider; 15. screw; 16. friction-increasing bottom pad; 17. limit plate; 18. moving cylinder; 19. limit slide groove; 20. toothed disc; 21. bevel gear; 22. moving caster; 23. hand-controlled crank handle; 24. transmission long rod; 25. transmission gear; 26. transmission short rod; 27. rotating drive mechanism. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in 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.

[0022] See also Figure 1-4The utility model provides an embodiment: a new energy battery pack extrusion test bench, including a test bench body 1, a rotating table 2, a tooth block 10 and a transmission gear 25. The top of the test bench body 1 is connected to the rotating table 2 through an axle seat 6, and the tooth block 10 is evenly spaced on the surface of one side of the rotating table 2. The rear side of the rotating table 2 is provided with a transmission gear 25. When the transmission gear 25 is driven to rotate, the rotating table 2 can be driven to rotate by the meshing contact state between the transmission gear 25 and the tooth block 10, which is used to change the extrusion direction of the battery pack body 5 to achieve two-side switching, so that the extrusion head 7 can better extrude the battery pack body 5 to achieve the extrusion test work;

[0023] The surface of the transmission gear 25 is in meshing contact with the tooth block 10. A transmission short rod 26 is connected to the inside of the transmission gear 25. A rotation drive mechanism 27 is installed at one end of the transmission short rod 26. The rotation drive mechanism 27 is embedded and installed in the top of the test bench body 1. A support platform 9 is connected to one side of the top of the test bench body 1. A hydraulic cylinder 8 is installed on the top of the support platform 9. The output end of the hydraulic cylinder 8 is connected to the extrusion head 7.

[0024] The middle part of the test bench body 1 is connected with an active cavity 13, and a moving cylinder 18 is arranged inside the active cavity 13. Both sides of the active cavity 13 are connected with limiting slide grooves 19, and the tops of both sides of the moving cylinder 18 are connected with limiting sliders 14 matching the limiting slide grooves 19. Both sides of the bottom of the test bench body 1 are connected with moving casters 22. The setting of the moving casters 22 facilitates the overall movement of the test bench body 1.

[0025] Two limiting supports 11 are symmetrically connected to the bottom of the rotating table 2 , and a limiting groove 12 matching the limiting supports 11 is connected to the surface of the top of the test table body 1 .

[0026] A battery pack body 5 is placed on the top of the rotating table 2, and a force plate 4 is arranged on one side and the rear side of the rotating table 2. The force plate 4 can limit the battery pack body 5 and improve the accuracy of the pressure test;

[0027] Limiting plates 3 are provided on one side and the rear side of the force-bearing plate 4 , and the bottoms of the limiting plates 3 and the force-bearing plate 4 are fixedly connected to the surface of the top of the rotating platform 2 .

[0028] A positioning bar 301 is connected to the upper part of the limiting plate 3, and a positioning groove 401 matching the positioning bar 301 is connected to one side and the rear side of the force-bearing plate 4, wherein the positioning bar 301 and the positioning groove 401 are slidably plugged into each other to realize the positioning of the force-bearing plate 4, so that the damaged force-bearing plate 4 can be replaced separately later, which is convenient and practical.

[0029] The top of the movable chamber 13 is connected with a screw rod 15 , a moving cylinder 18 is sleeved on the outside of the screw rod 15 , a limiting plate 17 is connected to the bottom of the moving cylinder 18 , and friction-increasing bottom pads 16 are provided at the bottom and both sides of the limiting plate 17 .

[0030] One end of the screw 15 is connected to a toothed disc 20, and a bevel gear 21 is provided on one side of the top of the toothed disc 20 for toothed contact. A transmission long rod 24 is connected to the inside of the bevel gear 21. The transmission long rod 24 extends to one side of the test bench body 1 and is connected to a manual crank handle 23. By setting and cooperating with the manual crank handle 23, the transmission long rod 24, the bevel gear 21, the movable caster 22, the screw 15 and the movable cylinder 18, the use height of the limiting plate 17 can be adjusted. When the limiting plate 17 moves between the two movable casters 22 and the bottom is in contact with the ground, it can limit the mobility of the movable caster 22, and has a friction-increasing effect when in contact with the ground, thereby limiting the movement of the test bench body 1.

[0031] When the embodiment of the present application is in use: when the driving transmission gear 25 rotates, the transmission gear 25 and the tooth block 10 are in meshing contact with each other to drive the rotating table 2 to rotate, which is used to change the direction in which the battery pack body 5 needs to be extruded, and realize two-side switching, so that the extrusion head 7 can better extrude the battery pack body 5 to realize the extrusion test. The device does not need to manually adjust the battery pack body 5, and can be operated by rotating the rotating table 2, which can eliminate the process of manually moving the battery pack. The setting of the force plate 4 can limit the battery pack body 5 and improve the accuracy of the pressure test. The positioning bar 301 and the positioning groove 401 are slidably connected to realize the positioning of the force plate 4, which is convenient for the subsequent replacement of the damaged force plate 4.

Claims

1. A new energy battery pack extrusion test bench, characterized in that: The invention comprises a test bench body (1), a rotating table (2), a tooth block (10) and a transmission gear (25), wherein the top of the test bench body (1) is connected to the rotating table (2) via an axle seat (6), the tooth block (10) is connected to the surface of one side of the rotating table (2) at equal intervals, a transmission gear (25) is arranged on the rear side of the rotating table (2), the surface of the transmission gear (25) is in a meshing contact state with the tooth block (10), a transmission short rod (26) is connected inside the transmission gear (25), one end of the transmission short rod (26) is installed with a rotation drive mechanism (27), the rotation drive mechanism (27) is embedded and installed in the top of the test bench body (1), one side of the top of the test bench body (1) is connected to a support platform (9), the top of the support platform (9) is installed with a hydraulic cylinder (8), and the output end of the hydraulic cylinder (8) is connected to an extrusion head (7).

2. The new energy battery pack extrusion test bench according to claim 1 is characterized in that: The middle of the test bench body (1) is connected to a movable cavity (13), a movable cylinder (18) is arranged inside the movable cavity (13), both sides of the movable cavity (13) are connected to limit slide grooves (19), the tops of both sides of the movable cylinder (18) are connected to limit sliders (14) matching the limit slide grooves (19), and both sides of the bottom of the test bench body (1) are connected to movable casters (22).

3. The new energy battery pack extrusion test bench according to claim 1 is characterized in that: Two limiting supports (11) are symmetrically connected to the bottom of the rotating table (2), and a limiting groove (12) matching the limiting supports (11) is connected to the surface of the top of the test table body (1).

4. The new energy battery pack extrusion test bench according to claim 3 is characterized in that: A battery pack body (5) is placed on the top of the rotating platform (2), a force-bearing plate (4) is arranged on one side and the rear side of the rotating platform (2), a limiting plate (3) is arranged on one side and the rear side of the force-bearing plate (4), and the bottoms of the limiting plate (3) and the force-bearing plate (4) are fixedly connected to the surface of the top of the rotating platform (2).

5. The new energy battery pack extrusion test bench according to claim 4 is characterized in that: The upper portion of the limiting plate (3) is connected to a positioning strip (301), and one side and a rear side of the force-bearing plate (4) are connected to positioning grooves (401) that match the positioning strip (301).

6. The new energy battery pack extrusion test bench according to claim 2 is characterized in that: The top of the movable chamber (13) is connected to a screw rod (15), the movable cylinder (18) is sleeved on the outside of the screw rod (15), the bottom of the movable cylinder (18) is connected to a limiting plate (17), and the bottom and both sides of the limiting plate (17) are provided with friction-increasing bottom pads (16).

7. The new energy battery pack extrusion test bench according to claim 6 is characterized in that: One end of the screw rod (15) is connected to a toothed disc (20), one side of the top of the toothed disc (20) is provided with a bevel gear (21) in toothed contact, the interior of the bevel gear (21) is connected to a transmission long rod (24), and the transmission long rod (24) extends to the outside of one side of the test bench body (1) and is connected to a hand-controlled crank handle (23).

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