New energy lithium battery impact test device

Abstract

The invention relates to the technical field of battery safety testing, in particular to a new energy lithium battery impact testing device which comprises a testing table and a supporting column, the supporting column is fixedly connected to the lower surface of the testing table, a shell is fixedly connected to the upper surface of the testing table, and speed adjusting mechanisms are arranged on the two opposite outer walls of the shell. Butt joint mechanisms are arranged on the two opposite sides of the upper surface of the test board, a firing pin and a collision block are arranged on the two sides of the top of an inner cavity of the shell, a rotating cover is slidably connected to one end of the upper surface of the test board, and a linkage mechanism is arranged in the test board. According to the new energy lithium battery impact test device, tested batteries can be divided into columnar lithium batteries and cuboid lithium batteries, the columnar lithium batteries and the cuboid lithium batteries can be clamped, if impact test types need to be replaced, the impact test types can be replaced through a linkage mechanism, the automation degree is high, and the test efficiency is high. Technicians do not need to manually replace collision objects, and manpower and time are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery safety testing, and in particular to a new energy lithium battery impact testing device. Background Art

[0002] At present, new energy vehicles are being promoted on a large scale. As the power source of new energy batteries, the safety of lithium batteries has always been highly valued. It is necessary to continuously test lithium batteries to understand the working conditions of battery packs in different environments. Factories that produce lithium batteries need to perform impact tests on specific models of lithium batteries they produce.

[0003] Impact tests include ordinary impact tests and striker tests. The striker test can test the state of a lithium battery when it is punctured by a sharp object. Most existing battery impact test devices can only perform one type of impact test on lithium batteries, and the tested batteries are also divided into cylindrical and rectangular shapes. If the test type needs to be changed, technicians are required to manually change the collision objects, which is more troublesome. In addition, most existing battery impact test devices are not easy to control the impact force during the collision, and the clamping and fixing of the lithium battery and the switch of the protective device all need to be manually operated, with a low degree of automation, which increases the workload of technicians. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a new energy lithium battery impact testing device.

[0005] The present invention adopts the following technical scheme: a new energy lithium battery impact test device, comprising a test bench and a support, wherein the support is fixedly connected to the lower surface of the test bench, the upper surface of the test bench can be fixedly connected to a shell, the two opposite outer walls of the shell are provided with a speed regulating mechanism, the two opposite sides of the upper surface of the test bench are provided with a docking mechanism, the top of the inner cavity of the shell is provided with a striker and a collision block, one end of the upper surface of the test bench is slidably connected to a rotating cover, and a linkage mechanism is provided in the test bench;

[0006] The linkage mechanism includes a transmission tooth arranged on the inner wall of the lower end of the rotating cover, one side of the transmission tooth is meshed with the first gear and the third gear, the other side of the first gear is meshed with the second gear, the first gear, the second gear and the third gear are all rotatably arranged in the test bench, the inner cavity of the shell is located on the upper surface of the test bench and a turntable is rotatably arranged, the outer wall of the lower end of the turntable is rotatably arranged with a gear ring, the gear ring is meshed with the second gear, the fourth gear is meshed in the gear ring, and the upper side of the fourth gear is meshed with a fifth gear, three fifth gears are arranged on the other side of the fifth gear, and the fifth gear located in the middle is meshed with the fifth gears on both sides, a rotating shaft is fixedly connected between the fifth gear located in the middle and the fifth gear on the other side, and threaded rods are fixedly connected at the center of the fifth gear on both sides, one of the threaded rods is threadedly connected to an arc clamping block on the outer wall, and the other threaded rod is threadedly connected to a square clamping block on the outer wall, and the fifth gear, rotating shaft and threaded rod are all rotatably connected in the turntable.

[0007] As a further description of the above technical solution: the speed regulating mechanism includes a striker, a collision block and a pull rope fixedly connected to the speed regulating mechanism on both sides respectively, a fixed block and a plurality of counterweight blocks are slidably provided on the outer walls of the two opposite sides of the shell, and an insertion block is connected to one end of the outer wall of the fixed block, slots are provided on the outer wall of the fixed block and the counterweight block, a baffle is slidably provided on the lower side of the counterweight block inside the outer wall of the shell, and a first spring is fixedly connected between the lower surface of the baffle and the shell.

[0008] As a further description of the above technical solution: the docking mechanism includes a fixed seat fixedly connected to two opposite sides of the upper surface of the test bench, and an electric push rod is fixedly provided with bolts on the inner wall of the vertical end of the fixed seat, the other end of the electric push rod is fixedly connected to a first motor, and a slide is fixedly connected to the lower end of the first motor, and the slide is slidably arranged on the upper surface of the horizontal end of the fixed seat, the output end of the first motor is fixedly connected to a fixed disk, and a winding post is provided on the other side of the fixed disk, one end of the winding post is rotatably connected to the outer shell, a pull rope is wound around the outer wall of one end of the winding post located in the outer shell, semi-ring protrusions are fixedly provided on the opposite side walls of the fixed disk and the winding post, plug-in components are provided on one side wall of the fixed disk close to the winding post, and limiting grooves are provided on the upper and lower ends of the semi-ring protrusions.

[0009] As a further description of the above technical solution: the plug-in assembly includes a sleeve block fixedly connected to the side wall of the fixed disk, an insertion rod is movably inserted in the sleeve block, and a second spring is fixedly connected between one end of the insertion rod and the sleeve block.

[0010] As a further description of the above technical solution: the pull rope is fixedly connected to the fixed block, and the pull rope passes through the counterweight block.

[0011] As a further description of the above technical solution: the test bench includes a disc, and a rotating groove and a sliding groove are provided on the disc.

[0012] As a further description of the above technical solution: the third gear and the lower end of the turntable are respectively fixedly connected to the third motor and the second motor, and the third motor and the second motor are both fixedly connected to the lower surface of the test bench.

[0013] As a further description of the above technical solution: the gear ring includes a circular ring, the inner wall and outer wall of the circular ring are respectively provided with internal teeth and external teeth, the outer wall of the circular ring located inside the turntable is bonded with a rubber sheet, and two placement grooves are provided on the upper surface of the turntable, and an arc-shaped clamping block and a square clamping block are respectively slidably arranged in the two placement grooves.

[0014] In the above technical scheme, the present invention provides a new energy lithium battery impact test device, which can clamp columnar and rectangular lithium batteries through arc-shaped clamps and square clamps. If the type of impact test needs to be changed, the second motor is started to rotate the turntable 180 degrees. When the rotating cover is closed, the arc-shaped clamp and the square clamp are moved to one side through the cooperation of the first gear, the second gear, the gear ring, the fourth gear, the rotating shaft, the threaded rod and each fifth gear, and then the lithium battery is clamped and fixed. The batteries that can be tested by the device can be columnar and rectangular in shape, with a high degree of automation. There is no need for technicians to manually replace collision objects, saving manpower and time.

[0015] Furthermore, if it is necessary to change the magnitude of the impact force during a collision, first insert the plug into the slot of the corresponding counterweight block. The lower the insertion position of the plug, the more counterweight blocks there are, and the smaller the initial falling speed of the collision block or the striker, the smaller the impact force. The battery impact test device can easily control the magnitude of the impact force during a collision, and the docking mechanism can make it easier to reel in the pull rope at any angle of the winding post. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 A schematic diagram of a new energy lithium battery impact test device provided by an embodiment of the present invention Figure 1 ;

[0018] Figure 2 A schematic diagram of a new energy lithium battery impact test device provided by an embodiment of the present invention Figure 2 ;

[0019] Figure 3 A schematic diagram of the structure of a striker and a collision block provided in an embodiment of the present invention;

[0020] Figure 4A schematic diagram of the structure of a speed regulating mechanism provided by an embodiment of the present invention;

[0021] Figure 5 A schematic diagram of the structure of the docking mechanism provided in an embodiment of the present invention Figure 1 ;

[0022] Figure 6 A schematic diagram of the structure of the docking mechanism provided in an embodiment of the present invention Figure 2 ;

[0023] Figure 7 A schematic diagram of the structure of a test bench provided in an embodiment of the present invention;

[0024] Figure 8 A schematic diagram of the structure of the linkage mechanism provided in the embodiment of the present invention Figure 1 ;

[0025] Fig. 9 A schematic diagram of the structure of the linkage mechanism provided in the embodiment of the present invention Figure 2 ;

[0026] Fig.10 A schematic diagram of the structure of the linkage mechanism provided in the embodiment of the present invention Figure 3 ;

[0027] Fig.11 for Figure 6 Enlarged view of point A in the middle.

[0028] In the figure: 1, test bench; 11, disc; 12, rotating groove; 13, slide; 2, pillar; 3, shell; 4, rotating cover; 5, speed regulating mechanism; 51, pull rope; 52, fixed block; 53, plug block; 54, counterweight block; 55, slot; 56, baffle; 57, first spring; 6, docking mechanism; 61, fixed seat; 62, electric push rod; 63, first motor; 64, winding column; 65, semi-ring protrusion; 66, plug assembly; 661, sleeve block; 662, plug rod; 663, second Spring; 67, fixed plate; 68, slide plate; 69, limit groove; 7, linkage mechanism; 71, transmission tooth; 72, first gear; 73, second gear; 74, third gear; 75, gear ring; 751, external tooth; 752, circular ring; 753, internal tooth; 76, second motor; 77, third motor; 78, fourth gear; 79, rotating shaft; 710, fifth gear; 711, threaded rod; 712, arc clamping block; 713, square clamping block; 8, turntable; 9, striker; 10, collision block. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below with reference to specific diagrams. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0030] See also Figure 1-Figure 11 The embodiment of the present invention provides a technical solution: a new energy lithium battery impact test device, including a test bench 1 and a pillar 2, the pillar 2 is fixedly connected to the lower surface of the test bench 1, the upper surface of the test bench 1 can be fixedly connected to a shell 3, the two opposite outer walls of the shell 3 are provided with a speed regulating mechanism 5, the two opposite sides of the upper surface of the test bench 1 are provided with a docking mechanism 6, the top of the inner cavity of the shell 3 is provided with a striker 9 and a collision block 10, one end of the upper surface of the test bench 1 is slidably connected to a rotating cover 4, and a linkage mechanism 7 is provided in the test bench 1;

[0031] The linkage mechanism 7 includes a transmission tooth 71 arranged on the inner wall of the lower end of the rotating cover 4, one side of the transmission tooth 71 is meshed with a first gear 72 and a third gear 74, the other side of the first gear 72 is meshed with a second gear 73, the first gear 72, the second gear 73 and the third gear 74 are all rotatably arranged in the test bench 1, the inner cavity of the shell 3 is located on the upper surface of the test bench 1 and a turntable 8 is rotatably arranged, the outer wall of the lower end of the turntable 8 is rotatably arranged with a gear ring 75, the gear ring 75 is meshed with the second gear 73, the gear ring 75 is meshed with a fourth gear 78, and the upper side of the fourth gear 78 is meshed with a fifth gear 78. Gear 710, three fifth gears 710 are provided on the other side of the fifth gear 710, and the fifth gear 710 located in the middle is meshed and connected with the fifth gears 710 on both sides, a rotating shaft 79 is fixedly connected between the fifth gear 710 located in the middle and the fifth gear 710 on the other side, and threaded rods 711 are fixedly connected at the centers of the fifth gears 710 located on both sides, one of the threaded rods 711 is threadedly connected to an arc clamping block 712 on the outer wall, and the other threaded rod 711 is threadedly connected to a square clamping block 713 on the outer wall, and the fifth gear 710, the rotating shaft 79, and the threaded rod 711 are all rotatably connected to the turntable 8.

[0032] Specifically, when a collision test is required for the lithium battery, the third motor 77 is started, the rotating cover 4 is opened, and then the corresponding type of lithium battery is placed. The striker 9 and the collision block 10 are located on two opposite sides of the center of the cavity of the shell 3. When the turntable 8 rotates, the rotating cover 4 rotates to one side through the rotating groove 12, and then one end of the transmission tooth 71 on the inner wall of the rotating cover 4 will be separated from the first gear 72, and one end of the transmission tooth 71 will be located between the first gear 72 and the third gear 74. If the type of collision test needs to be changed, the second motor 76 is started, the turntable 8 is rotated 180 degrees, and then the third motor is started again. 77, the third motor 77 is reversed, so that the rotating cover 4 blocks the opening of the shell 3. When the rotating cover 4 is closed, the arc clamp 712 and the square clamp 713 are moved to one side through the cooperation of the first gear 72, the second gear 73, the gear ring 75, the fourth gear 78, the rotating shaft 79, the threaded rod 711 and each fifth gear 710, and then the lithium battery is clamped and fixed, and then the docking mechanism 6 is started. Under the action of gravity, the collision block 10 or the striker 9 will fall, and then hit the lithium battery to be tested. The impact force during the collision can be changed by the speed regulating mechanism 5.

[0033] In another embodiment provided by the present invention, the speed regulating mechanism 5 includes a striker 9, a collision block 10 and a pull rope 51 fixedly connected to the speed regulating mechanism 5 on both sides, a fixed block 52 and a plurality of counterweight blocks 54 are slidably provided on the outer walls of the two opposite sides of the outer shell 3, and an insertion block 53 is connected to one end of the outer wall of the fixed block 52, and slots 55 are provided on the outer walls of the fixed block 52 and the counterweight block 54, and a baffle 56 is slidably provided on the lower side of the counterweight block 54 inside the outer wall of the outer shell 3, and a first spring 57 is fixedly connected between the lower surface of the baffle 56 and the outer shell 3.

[0034] Specifically, if it is necessary to change the magnitude of the impact force during a collision, first insert the insert block 53 into the slot 55 of the corresponding counterweight block 54. The lower the insertion position of the insert block 53, the more counterweight blocks 54 there are, and the smaller the initial falling speed of the collision block 10 or the striker 9, the smaller the impact force.

[0035] In another embodiment provided by the present invention, the docking mechanism 6 includes a fixing seat 61 fixedly connected to two opposite sides of the upper surface of the test bench 1, and an electric push rod 62 is fixedly provided on the inner wall of the vertical end of the fixing seat 61 by bolts, a first motor 63 is fixedly connected to the other end of the electric push rod 62, and a slide plate 68 is fixedly connected to the lower end of the first motor 63, and the slide plate 68 is slidably arranged on the upper surface of the horizontal end of the fixing seat 61, a fixing disk 67 is fixedly connected to the output end of the first motor 63, and a winding post 64 is arranged on the other side of the fixing disk 67, one end of the winding post 64 is rotatably connected to the shell 3, a pull rope 51 is wound around the outer wall of one end of the winding post 64 located in the shell 3, a semi-ring protrusion 65 is fixedly provided on the opposite side walls of the fixing disk 67 and the winding post 64, a plug-in assembly 66 is arranged on the upper and lower ends of the semi-ring protrusion 65 on one side wall of the fixing disk 67 close to the winding post 64, and a limiting groove 69 is arranged on the upper and lower ends of the semi-ring protrusion 65 on one side wall of the winding post 64 close to the fixing disk 67

[0036] Specifically, start the electric push rod 62 to separate the fixed disk 67 from the winding post 64, then the plug-in assembly 66 will disengage from the limiting groove 69, and under the action of gravity, the collision block 10 or the striker 9 will fall. When the pull rope 51 needs to be reeled in, start the electric push rod 62 to move the fixed disk 67 close to the winding post 64. When the semi-ring protrusions 65 on both sides collide with each other, the winding post 64 will rotate, so that the plug-in assembly 66 is inserted into the corresponding limiting groove 69, and then the first motor 63 is rotated to make the winding post 64 reel in the pull rope 51 and pull the collision block 10 or the striker 9 back to the upper side.

[0037] In another embodiment of the present invention, the plug-in assembly 66 includes a sleeve block 661 fixed to the side wall of the fixed plate 67 , an insertion rod 662 is movably inserted in the sleeve block 661 , and a second spring 663 is fixed between one end of the insertion rod 662 and the sleeve block 661 .

[0038] Specifically, when the fixing disk 67 approaches the winding post 64 , the insertion rod 662 contacts one end of the winding post 64 . When the winding post 64 rotates, the insertion rod 662 is inserted into the limiting groove 69 to connect the fixing disk 67 and the winding post 64 .

[0039] In another embodiment provided by the present invention, the pull rope 51 is fixedly connected to the fixing block 52 , and the pull rope 51 passes through the counterweight block 54 .

[0040] In another embodiment of the present invention, the test bench 1 includes a disc 11 , and a rotating groove 12 and a sliding groove 13 are formed on the disc 11 .

[0041] In another embodiment of the present invention, the third gear 74 and the lower end of the turntable 8 are respectively fixedly connected to a third motor 77 and a second motor 76 , and the third motor 77 and the second motor 76 are both fixedly connected to the lower surface of the test bench 1 .

[0042] In another embodiment provided by the present invention, the gear ring 75 includes a circular ring 752, and the inner wall and outer wall of the circular ring 752 are respectively provided with inner teeth 753 and outer teeth 751, and the outer wall of the circular ring 752 located inside the turntable 8 is bonded with a rubber sheet, and two placement grooves are provided on the upper surface of the turntable 8, and an arc-shaped clamping block 712 and a square clamping block 713 are respectively slidably arranged in the two placement grooves.

[0043] Specifically, after opening the rotating cover 4, place the corresponding type of lithium battery into the corresponding placement slot, and place the lithium battery in the placement slot on the side away from the arc-shaped clamp block 712 or the square clamp block 713. When one end of the transmission tooth 71 is disengaged from the first gear 72, if it is necessary to rotate the turntable 8, the friction between the gear ring 75 and the turntable 8 can be increased due to the provided rubber sheet, so that when the turntable 8 rotates, the gear ring 75 is driven to rotate, and the arc-shaped clamp block 712 and the square clamp block 713 will not move when the turntable 8 rotates.

[0044] Working principle: when it is necessary to perform an impact test on the lithium battery, start the third motor 77, open the rotating cover 4, and then put the corresponding type of lithium battery into the corresponding placement slot, and put the lithium battery into the placement slot on the side away from the arc-shaped clamping block 712 or the square clamping block 713. The striker 9 and the collision block 10 are located on two opposite sides of the center of the cavity of the shell 3. When the turntable 8 rotates, the rotating cover 4 rotates to one side through the rotating slot 12, and then one end of the transmission tooth 71 on the inner wall of the rotating cover 4 will disengage from the first gear 72, and one end of the transmission tooth 71 will be located between the first gear 72 and the third gear 74. If it is necessary to change the type of impact test, start the second motor 76, rotate the turntable 8 180 degrees, and then start the third motor 77 again to reverse the third motor 77, so that the rotating cover 4 blocks the opening of the shell 3. When the rotating cover 4 is closed, the first gear 72, the second gear 73, the gear ring 75, the fourth gear 78, the rotating shaft 79, the threaded rod 711 and each fifth gear 710 cooperate to make the arc-shaped The clamp block 712 and the square clamp block 713 move to one side, and then clamp and fix the lithium battery. Then, the electric push rod 62 is started to separate the fixing plate 67 from the winding column 64, and the plug-in assembly 66 will be separated from the limiting groove 69. Under the action of gravity, the collision block 10 or the striker 9 will fall and then hit the lithium battery to be tested. If the impact force during the collision needs to be changed, first insert the plug block 53 into the slot 55 of the corresponding counterweight block 54. The lower the insertion position of the plug block 53, the more counterweight blocks 54 there are. The smaller the initial falling speed of the collision block 10 or the striker 9, the smaller the impact force. Then, the electric push rod 62 is started to complete the test. When the pull rope 51 needs to be reeled in, the electric push rod 62 is started, and the fixed disk 67 is moved close to the winding column 64. When the semi-ring protrusions 65 on both sides collide with each other, the winding column 64 will rotate, so that the plug-in assembly 66 is inserted into the corresponding limit groove 69. Then, the first motor 63 is rotated, so that the winding column 64 reels the pull rope 51 and pulls the collision block 10 or the striker 9 to the upper side again.

[0045] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A new energy lithium battery impact test device, comprising a test bench (1) and a support (2), wherein the support (2) is fixedly connected to the lower surface of the test bench (1), characterized in that: The upper surface of the test bench (1) can be fixedly connected to a shell (3), two opposite outer walls of the shell (3) are provided with speed regulating mechanisms (5), two opposite sides of the upper surface of the test bench (1) are provided with docking mechanisms (6), two sides of the top of the inner cavity of the shell (3) are provided with strikers (9) and collision blocks (10), one end of the upper surface of the test bench (1) is slidably connected to a rotating cover (4), and a linkage mechanism (7) is provided inside the test bench (1); The linkage mechanism (7) comprises a transmission tooth (71) arranged on the inner wall of the lower end of the rotating cover (4); one side of the transmission tooth (71) is meshedly connected with a first gear (72) and a third gear (74); the other side of the first gear (72) is meshedly connected with a second gear (73); the first gear (72), the second gear (73) and the third gear (74) are all rotatably arranged in the test bench (1); the inner cavity of the housing (3) is located on the upper surface of the test bench (1) and a turntable (8) is rotatably arranged; the outer wall of the lower end of the turntable (8) is rotatably arranged with a gear ring (75); the gear ring (75) is meshedly connected with the second gear (73); a fourth gear (78) is meshedly connected inside the gear ring (75); and the upper side of the fourth gear (78) is A fifth gear (710) is meshedly connected, three fifth gears (710) are arranged on the other side of the fifth gear (710), and the fifth gear (710) located in the middle is meshedly connected with the fifth gears (710) on both sides, a rotating shaft (79) is fixedly connected between the fifth gear (710) located in the middle and the fifth gear (710) on the other side, and threaded rods (711) are fixedly connected at the center of the fifth gears (710) on both sides, one of the threaded rods (711) is threadedly connected with an arc-shaped clamping block (712) on the outer wall, and the other threaded rod (711) is threadedly connected with a square clamping block (713) on the outer wall, and the fifth gear (710), the rotating shaft (79) and the threaded rod (711) are all rotatably connected in the turntable (8).

2. A new energy lithium battery impact test device according to claim 1, characterized in that: The speed regulating mechanism (5) comprises a striker (9), a collision block (10) and a pull rope (51) fixedly connected to the speed regulating mechanism (5) on both sides, respectively; a fixed block (52) and a plurality of counterweight blocks (54) are slidably arranged on the outer walls of two opposite sides of the shell (3), and an insert block (53) is connected to one end of the outer wall of the fixed block (52); slots (55) are provided on the outer walls of the fixed block (52) and the counterweight block (54); a baffle plate (56) is slidably arranged on the lower side of the counterweight block (54) and is located inside the outer wall of the shell (3), and a first spring (57) is fixedly connected between the lower surface of the baffle plate (56) and the shell (3).

3. A new energy lithium battery impact test device according to claim 2, characterized in that: The docking mechanism (6) comprises a fixing seat (61) fixedly connected to two opposite sides of the upper surface of the test bench (1), and an electric push rod (62) is fixedly connected to the inner wall of the vertical end of the fixing seat (61) by bolts, the other end of the electric push rod (62) is fixedly connected to a first motor (63), and the lower end of the first motor (63) is fixedly connected to a slide plate (68), and the slide plate (68) is slidably arranged on the upper surface of the horizontal end of the fixing seat (61), the output end of the first motor (63) is fixedly connected to a fixing disk (67), and the other side of the fixing disk (67) is provided with a winding column (64), One end of the winding post (64) is rotatably connected to the housing (3); a pull rope (51) is wound around the outer wall of one end of the winding post (64) located in the housing (3); a semi-circular protrusion (65) is fixedly connected to the opposite side walls of the fixed disk (67) and the winding post (64); a plug-in assembly (66) is provided on the upper and lower ends of the semi-circular protrusion (65) on one side wall of the fixed disk (67) close to the winding post (64); and a limiting groove (69) is provided on the upper and lower ends of the semi-circular protrusion (65) on one side wall of the winding post (64) close to the fixed disk (67).

4. The new energy lithium battery impact test device according to claim 3, characterized in that: The plug-in assembly (66) comprises a sleeve block (661) fixedly connected to the side wall of the fixed plate (67), an insertion rod (662) is movably inserted in the sleeve block (661), and a second spring (663) is fixedly connected between one end of the insertion rod (662) and the sleeve block (661).

5. The new energy lithium battery impact test device according to claim 2, characterized in that: The pull rope (51) is fixedly connected to the fixing block (52), and the pull rope (51) passes through the counterweight block (54).

6. The new energy lithium battery impact test device according to claim 1, characterized in that: The test bench (1) comprises a disc (11), and a rotating groove (12) and a sliding groove (13) are provided on the disc (11).

7. The new energy lithium battery impact test device according to claim 1, characterized in that: The third gear (74) and the lower end of the turntable (8) are respectively fixedly connected to a third motor (77) and a second motor (76); the third motor (77) and the second motor (76) are both fixedly connected to the lower surface of the test bench (1).

8. The new energy lithium battery impact test device according to claim 1, characterized in that: The gear ring (75) comprises a circular ring (752), the inner wall and outer wall of the circular ring (752) are respectively provided with inner teeth (753) and outer teeth (751), the outer wall of the circular ring (752) located inside the turntable (8) is bonded with a rubber sheet, and the upper surface of the turntable (8) is provided with two placement grooves, and an arc-shaped clamping block (712) and a square clamping block (713) are respectively slidably arranged in the two placement grooves.

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