A lithium battery pneumatic high energy impact device

Abstract

The present invention relates to the field of lithium battery detection technology, and in particular to a pneumatic high-energy impact device for lithium batteries; a metal wire and an excitation column are detachably connected so that the size of the excitation column can be replaced, but it should be noted that the minimum size of the excitation column is larger than the size of the excitation hole; when replacing the excitation column, a staff member can rotate an adjustment ring on the outside of a mounting tube, and when rotating counterclockwise, the inclined surface of an extrusion groove on the inside of the adjustment ring presses the inclined surface of an adjustment block, and after the inclined surface of the adjustment block is squeezed, the adjustment block moves toward the middle of the mounting tube, and the adjustment block pushes an arc block toward the middle of the mounting tube, and when a plurality of arc blocks are pushed toward the middle of the mounting tube, the plurality of arc blocks reduce the size of the inside of the mounting tube, so that it can adapt to an impact column of a smaller size.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery detection, in particular to a lithium battery pneumatic high-energy impact device. Background Art

[0002] During actual driving, the vehicle may encounter curbstones, steep slopes, potholes or roads with stones, etc. These situations may cause the bottom of the battery pack to be hit or scratched, causing the battery pack to deform or rupture, and even damage the battery pack cooling system, thermal runaway or internal short circuit of the battery cell, which may eventually cause fire or explosion, posing a great safety hazard to the use of the vehicle;

[0003] The battery pack is one of the core components of electric vehicles, and its safety is directly related to the safety performance of the entire vehicle. The bottom impact test can simulate the reaction of the battery pack when it is hit by the bottom, evaluate the structural strength and safety of the battery pack, and ensure that the battery pack can withstand the impact without causing any danger in the event of a bottom collision.

[0004] The battery pack is composed of multiple power lithium batteries, so after the battery pack is assembled, the power lithium batteries are subjected to impact tests to obtain the impact resistance data of the battery pack, and then the design, development or assembly method of the power lithium batteries can be improved based on the data.

[0005] At present, most of the bottom impact tests on battery cells and small battery packs on the market use springs for impact tests. The impact mainly obtains elastic potential energy by compressing the spring through the motor + screw transmission structure, and then suddenly releases it to push the sliding impact head mechanism to move quickly, so as to effectively impact the test sample. The energy range is mostly 80J~150J, and the energy level is relatively small. However, in fact, when the car is driving, the impact energy encountered by the stone splashing caused by the speed and the uneven bottom of the road surface is much larger; so it will lead to inaccurate test results.

[0006] In summary, in order to solve the technical problem raised in this article, the present invention proposes a lithium battery pneumatic high-energy impact device. Summary of the invention

[0007] The present invention proposes a lithium battery pneumatic high-energy impact device, which includes a battery mounting mechanism, a moving mechanism and an impact mechanism; the battery mounting mechanism includes two mounting plate frames, a rotating shaft is slidably mounted up and down between the two mounting plate frames, and a battery fixing plate is arranged on the outer side of the rotating shaft; the moving mechanism includes a slide rail arranged between the two mounting plate frames, and a moving frame slidably connected to the slide rail; the impact mechanism includes:

[0008] A mounting frame, the mounting frame is arranged on the mobile frame, and a pre-storage gas tank is arranged on the mounting frame;

[0009] The mounting base plate is arranged at one end of the mounting frame, and four guide rods are arranged on the mounting base plate; a fixed plate is arranged on the four guide rods, a through hole is arranged in the middle of the fixed plate, and an impact push plate is slidably connected to the guide rod, and the impact push plate is located above the fixed plate; a locking plate is hinged on the side of the impact push plate, and a groove is arranged on the side of the locking plate; a limit column is arranged on the side of the fixed plate;

[0010] A mounting block is provided on the guide rod, a push plate is provided on the mounting block, and push columns are provided at both ends of the push plate, and the push columns are located below the limit column;

[0011] An inner cylinder body and an outer cylinder body, the inner cylinder body is fixed in the middle of the mounting base plate, the upper end of the inner cylinder body is located in the middle through hole of the fixing plate, and there is a gap between the outer wall of the inner cylinder body and the inner wall of the through hole; the outer cylinder body is slidably connected to the outer side of the inner cylinder body, and in the initial state, the outer wall of the outer cylinder body is slidably connected to the inner wall of the through hole, and the upper end of the outer cylinder body is fixed to the lower end of the impact push plate; a lower pressure electric cylinder is provided on the mounting base plate, and the lower pressure electric cylinder passes through the fixing plate and is connected to the lower end of the impact push plate;

[0012] A mounting top plate is fixed on the top ends of four guide rods, an excitation hole is opened at the center of the mounting top plate, an impact piece mounting mechanism is arranged on the mounting top plate, an impact head is arranged inside the impact piece mounting mechanism, an excitation column is arranged at the lower end of the impact head, the size of the excitation column is smaller than that of the impact head, and in the initial state, the excitation column passes through the excitation hole and is located below the mounting top plate; the excitation column is connected to the impact push plate through a metal wire.

[0013] As a preferred solution of the present application, the impact member installation mechanism comprises:

[0014] The mounting tube is fixed on the mounting top plate, an arc-shaped groove is provided on the inner wall of the mounting tube, an arc-shaped block is slidably connected inside the arc-shaped groove, an adjustment groove is provided on the outer wall of the mounting tube, the adjustment groove is communicated with the arc-shaped groove, the adjustment block is slidably connected inside the adjustment groove, the adjustment block is connected with the arc-shaped block, and an inclined surface is provided on one end of the adjustment block located outside the mounting tube;

[0015] The adjusting ring is slidably connected to the outer wall of the mounting tube, an extrusion groove is provided on the inner wall of the adjusting ring, one side wall of the extrusion groove is provided with an inclined surface, and the inclined surface of the extrusion groove is fitted with the inclined surface of the adjusting block.

[0016] As a preferred solution of the present application, a slide groove is provided on the arc block, a slide plate is slidably connected inside the slide groove, a spring is provided at the lower end of the slide plate, and one end of the slide plate away from the adjustment ring extends out of the slide groove.

[0017] As a preferred solution of the present application; metal elastic plates are arranged on both sides of the arc block; a strip-shaped mounting groove is provided on the adjusting block, the middle part of the mounting groove is connected with the slide groove, and the cross-section after the mounting groove and the slide groove are connected is T-shaped; a connecting plate is slidably connected inside the mounting groove; both ends of the connecting plate extend into the interior of the arc groove, and strip blocks are installed above the two ends of the connecting plate located inside the arc groove, and an inclined surface is provided at the lower end of the strip block; in the initial state, the end face of the strip block close to the adjusting ring and the end face of the arc groove close to the adjusting ring are located in the same plane, so that during the downward movement of the strip block, the inclined surface of the lower end of the strip block presses the metal elastic plate.

[0018] As a preferred solution of the present application; a sliding groove is provided on the end face of each of the strip blocks away from the adjustment ring, and the sliding groove runs through the upper and lower ends of the strip blocks. An adjustment plate is slidably connected inside the sliding groove, and the cross-section of the adjustment plate is T-shaped. The lower end of the adjustment plate has the same inclined surface as the lower end of the strip block.

[0019] As a preferred solution of the present application, the sliding direction of the adjustment plate inside the sliding groove is inclined upward, and the inclination angle is the same as the inclined angle of the lower end of the strip block.

[0020] As a preferred solution of the present application, a protective tube is provided at the upper end of the mounting tube, and the protective tube wraps the outer rings of the plurality of strip blocks.

[0021] As a preferred solution of the present application; an embedding groove is provided on the arc block, the embedding groove is located above the slide groove, a sponge strip is embedded and installed inside the embedding groove, the sponge strip absorbs lubricating liquid, and an injection groove is provided at the upper end of the arc block, the injection groove is connected to the embedding groove.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. The metal wire and the excitation column are detachably connected, so that the size of the excitation column can be replaced, but it should be noted that the minimum size of the excitation column is larger than the size of the excitation hole; when replacing the excitation column, the staff can rotate the adjustment ring on the outside of the mounting tube. When rotating counterclockwise, the inclined surface of the extrusion groove on the inside of the adjustment ring squeezes the inclined surface of the adjustment block. After the inclined surface of the adjustment block is squeezed, the adjustment block moves toward the middle of the mounting tube, and the adjustment block pushes the arc block toward the middle of the mounting tube. When multiple arc blocks are pushed toward the middle of the mounting tube, the multiple arc blocks will reduce the size of the inside of the mounting tube, so that it can adapt to smaller impact columns.

[0024] 2. And in the process of the downward pressure electric cylinder driving the impact push plate and the excitation column to move downward, if the impact head is small, the slide plate drives the connecting plate to move downward during the downward movement of the slide plate, and the connecting plate drives the strip block to move downward. During the downward movement of the strip block, the inclined surface of the lower side of the strip block squeezes the metal elastic plates (the metal elastic plates can be elastic steel plates, etc.) on both sides of the arc block. After being squeezed, the metal elastic plates move toward the middle, so that the curvature of the arc block becomes smaller, and then the arc block and the metal elastic plate cooperate to adapt to the arc surface of the smaller impact head, so that the fit and limiting effect on the outer side of the smaller impact head are better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a stereogram in the present invention;

[0026] Figure 2 It is a structural view of the rotating shaft in the present invention;

[0027] Figure 3 It is a structural view of the mounting frame of the present invention;

[0028] Figure 4 It is a structural view of the lower pressure electric cylinder in the present invention;

[0029] Figure 5 This is a structural view of the impact head in the present invention facing upward;

[0030] Figure 6 It is a structural view of the adjustment ring in the present invention;

[0031] Figure 7 yes Figure 6 A top view of

[0032] Figure 8 It is a structural view of the excitation column and the excitation hole in the present invention;

[0033] Fig. 9 It is a structural view of the adjustment block in the present invention;

[0034] Fig.10 yes Fig. 9 A top view of the

[0035] Fig.11 It is a structural view of the installation pipe;

[0036] Fig.12 It is the structural view of the regulating block and the arc block;

[0037] Fig.13 It is a half-section view of the regulating block and the arc block;

[0038] Fig.14 It is a structural view of the bar block and the sliding groove.

[0039] In the figure: battery installation mechanism 1, moving mechanism 2, impact mechanism 3, mounting plate frame 11, rotating shaft 12, battery fixing plate 13, slide rail 21, moving frame 22, mounting frame 31, pre-storage gas tank 32, mounting base plate 33, guide rod 34, fixing plate 35, impact push plate 36, locking plate 361, groove 362, limit column 351, mounting block 37, push plate 371, push column 372, inner cylinder body 38, outer cylinder body 39, lower pressure electric cylinder 331, mounting top plate 341, excitation hole 342, impact member mounting mechanism 4, impact head 41, excitation column 411, metal wire 412, mounting tube 42, arc groove 421, adjustment groove 423, adjustment block 424, adjustment ring 425, extrusion groove 426, slide groove 43, slide plate 44, metal elastic plate 427, mounting groove 428, connecting plate 429, strip block 45, sliding groove 451, adjustment plate 452, protective tube 46, embedded groove 47, sponge strip 48, injection groove 49. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0041] Embodiment 1:

[0042] like Figures 1 to 14 As shown; a lithium battery pneumatic high-energy impact device, the impact device includes a battery mounting mechanism 1, a moving mechanism 2 and an impact mechanism 3; the battery mounting mechanism 1 includes two mounting plate frames 11, a rotating shaft 12 is slidably mounted up and down between the two mounting plate frames 11, and a battery fixing plate 13 is arranged on the outer side of the rotating shaft 12; the moving mechanism 2 includes a slide rail 21 arranged between the two mounting plate frames 11, and a moving frame 22 slidably connected to the slide rail 21; the impact mechanism 3 includes:

[0043] A mounting frame 31, the mounting frame 31 is arranged on the moving frame 22, and a pre-storage gas tank 32 is arranged on the mounting frame 31;

[0044] The mounting base plate 33 is arranged at one end of the mounting frame 31, and four guide rods 34 are arranged on the mounting base plate 33; a fixed plate 35 is arranged on the four guide rods 34, and a through hole is provided in the middle of the fixed plate 35; an impact push plate 36 is slidably connected to the guide rod 34, and the impact push plate 36 is located above the fixed plate 35; a locking plate 361 is hinged on the side of the impact push plate 36, and a groove 362 is provided on the side of the locking plate 361; a limiting column 351 is provided on the side of the fixed plate 35;

[0045] The guide rod 34 is provided with a mounting block 37 , and a push plate 371 is provided on the mounting block 37 . Both ends of the push plate 371 are provided with push posts 372 , and the push posts 372 are located below the limiting posts 351 ;

[0046] The inner cylinder body 38 and the outer cylinder body 39, the inner cylinder body 38 is fixed in the middle of the mounting base plate 33, the upper end of the inner cylinder body 38 is located in the middle through hole of the fixing plate 35, and there is a gap between the outer wall of the inner cylinder body 38 and the inner wall of the through hole; the outer cylinder body 39 is slidably connected to the outer side of the inner cylinder body 38, in the initial state, the outer wall of the outer cylinder body 39 is slidably connected to the inner wall of the through hole, and the upper end of the outer cylinder body 39 is fixed to the lower end of the impact push plate 36; a lower pressure electric cylinder 331 is provided on the mounting base plate 33, and the lower pressure electric cylinder 331 passes through the fixing plate 35 and is connected to the lower end of the impact push plate 36;

[0047] A mounting top plate 341 is fixed to the top ends of the four guide rods 34. A striking member mounting mechanism 4 is disposed on the mounting top plate 341. A striking head 41 is disposed inside the striking member mounting mechanism 4. The striking head 41 is connected to the striking push plate 36 via a metal wire 412.

[0048] The impact member installation mechanism 4 includes:

[0049] The mounting tube 42 is fixed on the mounting top plate 341. The inner wall of the mounting tube 42 is provided with an arc groove 421. The inner part of the arc groove 421 is slidably connected with an arc block 422. The outer wall of the mounting tube 42 is provided with an adjustment groove 423. The adjustment groove 423 is communicated with the arc groove 421. The inner part of the adjustment groove 423 is slidably connected with an adjustment block 424. The adjustment block 424 is connected with the arc block 422. An end of the adjustment block 424 located outside the mounting tube 42 is provided with an inclined surface.

[0050] The adjusting ring 425 is slidably connected to the outer wall of the mounting tube 42 . An extrusion groove 426 is provided on the inner wall of the adjusting ring 425 . One side wall of the extrusion groove 426 is provided with an inclined surface. The inclined surface of the extrusion groove 426 fits with the inclined surface of the adjusting block 424 .

[0051] The specific workflow is as follows:

[0052] When performing an impact test on a lithium battery, firstly, the lithium battery pack is mounted on the battery fixing plate 13, and then the staff controls the rotating shaft 12 to move upward between the two mounting plate frames 11. The power for the upward movement of the rotating shaft 12 comes from a telescopic device arranged on the mounting plate frame 11 (the telescopic device is a telescopic cylinder in the prior art, etc.); if a vertical impact test is required for the lithium battery pack, the staff controls the rotating shaft 12 to rotate, and rotates the battery fixing plate 13 arranged on the rotating shaft 12 to be parallel to the horizontal plane. If an inclined impact test is performed on the lithium battery, the staff controls the rotating shaft 12 to rotate so that the rotating shaft 12 has an angle with the horizontal plane; the specific inclination angle can be adjusted by controlling the rotation angle of the rotating shaft 12 (the power for the rotation of the rotating shaft 12 comes from a driving motor arranged at one end thereof);

[0053] After the lithium battery pack is installed, the movable frame 22 is controlled to move on the slide rail 21, and the movable frame 22 drives the mounting frame 31 to move to the bottom of the lithium battery pack until the impact head 41 moves to the bottom of the lithium battery pack, and the movable frame 22 stops moving; then the lower pressure electric cylinder 331 works, and the lower pressure electric cylinder 331 contracts. When the lower pressure electric cylinder 331 contracts, it pulls the impact push plate 36, and the impact push plate 36 moves downward on the guide rod 34. The impact push plate 36 moves in the direction of the mounting base plate 33, and the impact push drives the outer cylinder body 39 arranged below it to move downward. During the downward movement of the outer cylinder body 39, the outer inner wall moves downward on the outer wall of the inner cylinder body 38, and the internal gas inside the inner cylinder body 38 and the outer cylinder body 39 is squeezed, so that the gas pressure between the inner cylinder body 38 and the outer cylinder body 39 increases, and if it is necessary to increase the impact force, the staff can open the pre-storage gas tank 32. The pre-storage gas tank 32 The air pipe is connected to the upper end of the inner cylinder 38; the gas inside the pre-storage gas tank 32 can be injected into the gap between the outer cylinder 39 and the inner cylinder 38 through the upper end of the inner cylinder 38, so that the air pressure between the outer cylinder 39 and the inner cylinder 38 is further increased, thereby increasing the impact force of the impact head 41 when it impacts; during the downward movement of the outer cylinder 39, the locking plate 361 provided on one side of the impact push plate 36 moves downward synchronously, and during the downward movement of the locking plate 361, the lower end of the locking plate 361 presses the limiting column 351, and the limiting column 351 presses the inclined surface of the lower end of the locking plate 361, and the locking plate 361 rotates, and the lower end of the locking plate 361 rotates over the limiting column 351. When the groove 362 opened on the side of the locking plate 361 moves to the position of the limiting column 351, the locking plate 361 rotates and resets, and the limiting column 351 is embedded in the groove 362 to limit the locking plate 361;

[0054] When the lithium battery pack is subjected to an impact test, the push plate 371 is controlled to work. When the push plate 371 is working, the telescopic device (the telescopic device is a telescopic cylinder in the prior art) between the push plate 371 and the mounting block 37 can be extended, so that the push plate 371 drives the push columns 372 arranged at both ends thereof to move in the direction of the limit column 351. The two push columns 372 push the lower ends of the locking plates 361 on both sides, and the locking plates 361 rotate, so that the grooves 362 on the side of the locking plates 361 are separated from the limit column 351, and the separation is completed. Afterwards, the air pressure between the outer cylinder 39 and the inner cylinder 38 pushes the outer cylinder 39, and the outer cylinder 39 pushes the impact push plate 36. During the upward movement of the impact push plate 36 on the guide rod 34, it impacts the excitation column 411 at the lower end of the impact head 41. The excitation column 411 pushes the impact head 41 to move upward, so that the impact head 41 collides with the lower end of the lithium battery pack; the impact force on the lithium battery pack can be calculated according to the kinetic energy of the impact head 41, and the reaction of the lithium battery pack can be observed according to the impact force, thereby obtaining the impact resistance data of the lithium battery pack;

[0055] During the above-mentioned working process, the impact head 41 is located in the impact member mounting mechanism 4, that is, the impact head 41 is located in the mounting tube 42 mounted on the mounting top plate 341, and the excitation column 411 at the lower end of the impact head 41 passes through the excitation hole 342 in the middle of the mounting top plate 341 and is located below it; when the impact column is impacted and moves upward, the outer wall of the impact head 41 is limited by the mounting tube 42, so that the impact head 41 can move vertically upward, and after the rotating shaft 12 moves upward, the moving frame 22 moves to the bottom of the battery fixing plate 13, and the distance between the upper end of the battery fixing plate 13 and the upper end of the mounting tube 42 is smaller than the size of the impact head 41; so that when the impact head 41 impacts the lithium battery pack upward, the impact head 41 will not be separated from the mounting tube 42; so that after the impact head 41 impacts the lithium battery pack, the lower end of the impact head 41 will still be limited by the mounting tube 42;

[0056] In the above process, when the lower piezoelectric cylinder 331 contracts downward, it drives the impact push plate 36 to move downward, and the impact push plate 36 does not push the impact head 41 and the excitation column 411 below it. The impact column falls downward due to its own gravity, and the excitation column 411 falls into the excitation hole 342 on the mounting top plate 341. When the locking plate 361 on the side of the mounting top plate 341 is locked by the limiting column 351, the metal wire 412 between the excitation column 411 and the impact push plate 36 is in a straight state; when the impact head 41 impacts the lithium battery pack, the metal wire between the excitation column 411 and the impact push plate 36 is in a relaxed state;

[0057] The metal wire and the excitation column 411 are detachably connected, so that the size of the excitation column 411 can be replaced, but it should be noted that the minimum size of the excitation column 411 is larger than the size of the excitation hole 342; when replacing the excitation column 411, the staff can rotate the adjustment ring 425 on the outside of the mounting tube 42, and when rotating counterclockwise, the inclined surface of the extrusion groove 426 on the inside of the adjustment ring 425 presses the inclined surface of the adjustment block 424, and after the inclined surface of the adjustment block 424 is squeezed, the adjustment block 424 moves toward the middle of the mounting tube 42, and the adjustment block 424 pushes the arc block 422 toward the middle of the mounting tube 42. When multiple arc blocks 422 are pushed toward the middle of the mounting tube 42, the multiple arc blocks 422 reduce the size of the inside of the mounting tube 42, so that it can adapt to smaller-sized impact columns;

[0058] Similarly, when a larger impact column is needed, the operator rotates the adjustment ring 425 clockwise so that the inclined surface of the extrusion groove 426 on the adjustment ring 425 no longer squeezes the inclined surface of the adjustment block 424. At this time, the spring arranged between the adjustment block 424 and the adjustment groove 423 pulls the adjustment block 424, causing the adjustment block 424 to move away from the mounting tube 42. The distance between the multiple arc blocks 422 gradually increases, so as to adapt to larger impact columns, thereby achieving the ability of the impact column to be adjusted, thereby meeting the diversity of different sized protrusions on the road surface when impacting the lithium battery pack, making the test of the battery pack more diverse, and enabling corresponding tests to be performed for different road environments.

[0059] Embodiment 2:

[0060] like Figures 2 to 13 As shown; the arc block 422 is provided with a slide groove 43, the interior of the slide groove 43 is slidably connected with a slide plate 44, the lower end of the slide plate 44 is provided with a spring, and the end of the slide plate 44 away from the adjustment ring 425 extends out of the slide groove 43;

[0061] Metal elastic plates 427 are arranged on both sides of the arc block 422; a strip-shaped mounting groove 428 is provided on the adjusting block 424, the middle part of the mounting groove 428 is connected with the slide groove 43, and the cross-section after the mounting groove 428 and the slide groove 43 are connected is T-shaped; a connecting plate 429 is slidably connected inside the mounting groove 428; both ends of the connecting plate 429 extend into the interior of the arc groove 421, and a strip block 45 is installed above the two ends of the connecting plate 429 located inside the arc groove 421, and an inclined surface is arranged at the lower end of the strip block 45; in the initial state, the end face of the strip block 45 close to the adjusting ring 425 and the end face of the arc groove 421 close to the adjusting ring 425 are located in the same plane, so that during the downward movement of the strip block 45, the inclined surface of the lower end of the strip block 45 presses against the metal elastic plate 427.

[0062] The specific workflow is as follows:

[0063] On the basis of the above embodiment, a slide groove 43 is provided on the arc block 422, and the slide plate 44 is slidably connected inside the slide groove 43, and a spring is arranged at the lower end of the slide plate 44, and the other end of the spring is connected to the bottom of the slide groove 43. When the lower piezoelectric cylinder 331 moves downward, the impact push plate 36 moves downward. During the process, the impact push plate 36 pulls the excitation column 411 through the metal wire 412, and the excitation column 411 is pulled by the pulling column. The excitation column 411 drives the impact head 41 to move downward. At this time, the lower end of the impact head 41 is pushed by the slide plate 44, and the lower end of the impact head 41 presses the slide plate 44. The pressure plate moves downward inside the slide groove 43, and the pressure plate presses the spring arranged below it. The spring is compressed, and when the impact head 41 presses the lithium battery pack upward, the spring below the slide plate 44 elastically extends and pushes the slide plate 44, and the slide plate 44 transmits the force of the spring extension to the impact head 41, thereby improving the impact effect on the lithium battery pack.

[0064] And in the process of the downward pressure electric cylinder 331 driving the impact push plate 36 and the excitation column 411 to move downward, if the impact head 41 is smaller, then during the downward movement of the slide plate 44, the slide plate 44 drives the connecting plate 429 to move downward, and the connecting plate 429 drives the strip block 45 to move downward. During the downward movement of the strip block 45, the inclined surface of the lower side of the strip block 45 squeezes the metal elastic plates 427 (the metal elastic plates 427 can be elastic steel plates, etc.) on both sides of the arc block 422. After being squeezed, the metal elastic plates 427 move toward the middle, so that the curvature of the arc block 422 becomes smaller, and then the arc block 422 and the metal elastic plate 427 cooperate to adapt to the arc surface of the smaller impact head 41, so that the fit and limiting effect on the outer side of the smaller impact head 41 are better.

[0065] Embodiment three:

[0066] like Figures 3 to 14 As shown; a sliding groove 451 is formed on one end face of each bar block 45 away from the adjusting ring 425, and the sliding groove 451 passes through the upper and lower ends of the bar block 45, and an adjusting plate 452 is slidably connected inside the sliding groove 451, and the cross section of the adjusting plate 452 is T-shaped, and the lower end of the adjusting plate 452 is the same as the inclined surface of the lower end of the bar block 45;

[0067] The sliding direction of the adjustment plate 452 in the sliding groove 451 is to slide obliquely upward, and the inclination angle is the same as the inclined angle of the lower end of the bar block 45;

[0068] A protection tube 46 is disposed at the upper end of the installation tube 42 , and the protection tube 46 wraps the outer circles of the plurality of bar blocks 45 .

[0069] The specific workflow is as follows:

[0070] On the basis of the above embodiment, a sliding groove 451 is provided on one end surface of the bar block 45 away from the adjusting ring 425, and the sliding groove 451 passes through the upper and lower ends of the bar block 45, and the adjusting plate 452 is slidably connected inside the sliding groove 451, and the sliding direction of the adjusting plate 452 inside the sliding groove 451 is inclined upward sliding, and the inclination angle is the same as the angle of the inclined surface at the lower end of the bar block 45;

[0071] When the inner dimension of the mounting tube 42 is at its maximum, the adjusting plate 452 is pushed inside the sliding groove 451, so that the thickness of the adjusting plate 452 and the strip block 45 is the smallest when they are matched together. At this time, when the sliding plate 44 moves downward, the strip block 45 and the adjusting plate 452 are driven to move downward, and the strip block 45 and the adjusting plate 452 are embedded in the gap between the metal elastic plate 427 and the arc groove 421, and the inclined surfaces at the lower ends of the strip block 45 and the adjusting plate 452 do not press the upper end of the metal elastic plate 427;

[0072] When the size inside the installation tube 42 becomes smaller, the adjustment plate 452 is slid upwardly in an inclined manner inside the sliding groove 451, so that the distance between the adjustment plate 452 and the strip block 45 becomes larger. At this time, when the strip block 45 and the adjustment plate 452 move downward, the size of the adjustment plate 452 and the strip block 45 together is larger than the distance between the metal elastic plate 427 and the arc groove 421, so that the lower end inclined surface of the adjustment plate 452 and the adjustment block 424 can squeeze the upper end of the metal elastic plate 427, so that the metal elastic plate 427 is bent, and the arc surface of the arc block 422 is changed to adapt to the impact head 41 of the corresponding size; when installing the impact heads 41 of different sizes, it is only necessary to adjust the sliding distance of the adjustment plate 452 inside the sliding groove 451 to adapt and adjust the bending angle of the metal elastic plate 427;

[0073] A protective tube 46 is provided at the upper end of the mounting tube 42 , and the protective tube 46 wraps the outer ring of the strip block 45 . When the impact head 41 is not used, the protective tube 46 can protect the strip block 45 and the adjustment plate 452 , thereby improving the protection effect of the strip block 45 .

[0074] Embodiment 4:

[0075] like Figures 3 to 14 As shown; an embedding groove 47 is provided on the arc block 422, and the embedding groove 47 is located above the slide groove 43. A sponge strip 48 is embedded and installed inside the embedding groove 47, and the sponge strip 48 absorbs lubricating liquid. An injection groove 49 is provided at the upper end of the arc block 422, and the injection groove 49 is connected to the embedding groove 47.

[0076] The specific workflow is as follows:

[0077] By opening an embedding groove 47 on the arc block 422, the embedding groove 47 is located above the slide groove 43, and a sponge strip 48 is embedded and installed inside the embedding groove 47, so that lubricating liquid is adsorbed in the sponge strip 48, and an injection groove 49 is opened at the upper end of the arc block 422, so that the injection groove 49 is connected with the embedding groove 47; on the basis of the above embodiment, when the impact head 41 is installed, the outer side of the impact head 41 moves downward on the inner side of the arc block 422. During the process, the outer side of the impact head 41 contacts the sponge strip 48 inside the embedding groove 47, and the lubricating liquid inside the sponge strip 48 will be coated on the side wall of the impact head 41, thereby reducing the friction between the side wall of the impact head 41 and the arc block 422; and no matter how the sizes of the multiple arc blocks 422 change, the sponge strip 48 can contact the side wall of the impact head 41, so that the friction between the arc block 422 and the impact head 41 is reduced; and the lubricating liquid can be replenished at any time through the injection groove 49.

[0078] The above shows and describes the basic principles, main features and advantages of the present invention; those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining 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 lithium battery pneumatic high-energy impact device, the impact device comprising a battery mounting mechanism (1), a moving mechanism (2) and an impact mechanism (3); the battery mounting mechanism (1) comprises two mounting plate frames (11), a rotating shaft (12) is slidably mounted up and down between the two mounting plate frames (11), and a battery fixing plate (13) is arranged on the outer side of the rotating shaft (12); the moving mechanism (2) comprises a slide rail (21) arranged between the two mounting plate frames (11), and a moving frame (22) slidably connected to the slide rail (21); characterized in that The impact mechanism (3) comprises: A mounting frame (31), the mounting frame (31) is arranged on the moving frame (22), and a pre-storage gas tank (32) is arranged on the mounting frame (31); A mounting base plate (33), the mounting base plate (33) is arranged at one end of the mounting frame (31), and four guide rods (34) are arranged on the mounting base plate (33); a fixed plate (35) is arranged on the four guide rods (34), a through hole is arranged in the middle of the fixed plate (35), an impact push plate (36) is slidably connected to the guide rod (34), and the impact push plate (36) is located above the fixed plate (35); a locking plate (361) is hinged on the side of the impact push plate (36), and a groove (362) is arranged on the side of the locking plate (361); a limiting column (351) is arranged on the side of the fixed plate (35); A mounting block (37), the guide rod (34) is provided with a mounting block (37), a push plate (371) is provided on the mounting block (37), push columns (372) are provided at both ends of the push plate (371), and the push columns (372) are located below the limiting column (351); An inner cylinder body (38) and an outer cylinder body (39), wherein the inner cylinder body (38) is fixed at the middle of the mounting base plate (33), the upper end of the inner cylinder body (38) is located in the middle through hole of the fixed plate (35), and there is a gap between the outer wall of the inner cylinder body (38) and the inner wall of the through hole; the outer cylinder body (39) is slidably connected to the outer side of the inner cylinder body (38), and in an initial state, the outer wall of the outer cylinder body (39) is slidably connected to the inner wall of the through hole, and the upper end of the outer cylinder body (39) is fixed to the lower end of the impact push plate (36); a lower pressure electric cylinder (331) is provided on the mounting base plate (33), and the lower pressure electric cylinder (331) passes through the fixed plate (35) and is connected to the lower end of the impact push plate (36); A mounting top plate (341) is fixed to the top ends of the four guide rods (34); an excitation hole (342) is provided at the center of the mounting top plate (341); an impact member mounting mechanism (4) is provided on the mounting top plate (341); an impact head (41) is provided inside the impact member mounting mechanism (4); an excitation column (411) is provided at the lower end of the impact head (41); the size of the excitation column (411) is smaller than the size of the impact head (41); and in an initial state, the excitation column (411) passes through the excitation hole (342) and is located below the mounting top plate (341); the excitation column (411) is connected to the impact push plate (36) via a metal wire (412); The impact member mounting mechanism (4) comprises: A mounting tube (42), the mounting tube (42) being fixed on the mounting top plate (341), an inner wall of the mounting tube (42) being provided with an arc-shaped groove (421), the interior of the arc-shaped groove (421) being slidably connected to an arc-shaped block (422), an outer wall of the mounting tube (42) being provided with an adjustment groove (423), the adjustment groove (423) being communicated with the arc-shaped groove (421), the interior of the adjustment groove (423) being slidably connected to an adjustment block (424), the adjustment block (424) being connected to the arc-shaped block (422), and an end of the adjustment block (424) being located outside the mounting tube (42) being provided with an inclined surface; An adjusting ring (425) is slidably connected to the outer wall of the mounting tube (42); an extrusion groove (426) is provided on the inner wall of the adjusting ring (425); a side wall of the extrusion groove (426) is provided with an inclined surface; and the inclined surface of the extrusion groove (426) is in contact with the inclined surface of the adjusting block (424).

2. A lithium battery pneumatic high energy impact device as claimed in claim 1, characterized in that: The arc block (422) is provided with a slide groove (43), the interior of the slide groove (43) is slidably connected with a slide plate (44), a spring is provided at the lower end of the slide plate (44), and one end of the slide plate (44) away from the adjustment ring (425) extends out of the slide groove (43).

3. A lithium battery pneumatic high energy impact device as claimed in claim 1, characterized in that: Metal elastic plates (427) are arranged on both sides of the arc block (422); a strip-shaped installation groove (428) is provided on the adjustment block (424); the middle of the installation groove (428) is connected to the slide groove (43); the cross section of the installation groove (428) and the slide groove (43) after being connected is T-shaped; a connecting plate (429) is slidably connected inside the installation groove (428); both ends of the connecting plate (429) extend into the interior of the arc groove (421) to connect A strip block (45) is installed above the two ends of the connecting plate (429) located inside the arc groove (421), and an inclined surface is provided at the lower end of the strip block (45); in the initial state, the end surface of the strip block (45) close to the adjustment ring (425) and the end surface of the arc groove (421) close to the adjustment ring (425) are located in the same plane, so that when the strip block (45) moves downward, the inclined surface of the lower end of the strip block (45) presses against the metal elastic plate (427).

4. A lithium battery pneumatic high energy impact device as claimed in claim 3, characterized in that: A sliding groove (451) is formed on one end face of each bar block (45) away from the adjustment ring (425). The sliding groove (451) runs through the upper and lower ends of the bar block (45). An adjustment plate (452) is slidably connected inside the sliding groove (451). The cross section of the adjustment plate (452) is T-shaped. The lower end of the adjustment plate (452) has the same inclined surface as the lower end of the bar block (45).

5. A lithium battery pneumatic high energy impact device as claimed in claim 4, characterized in that: The sliding direction of the adjustment plate (452) inside the sliding groove (451) is to slide obliquely upward, and the inclination angle is the same as the inclined angle of the lower end of the bar block (45).

6. A lithium battery pneumatic high energy impact device as claimed in claim 5, characterized in that: A protective tube (46) is provided at the upper end of the installation tube (42), and the protective tube (46) wraps the outer rings of the plurality of bar blocks (45).

7. A lithium battery pneumatic high energy impact device as claimed in claim 2, characterized in that: The arc block (422) is provided with an embedding groove (47), the embedding groove (47) is located above the slide groove (43), a sponge strip (48) is embedded and installed inside the embedding groove (47), and lubricating liquid is absorbed in the sponge strip (48), and a liquid injection groove (49) is provided at the upper end of the arc block (422), and the liquid injection groove (49) is communicated with the embedding groove (47).

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