A charged waste lithium battery recycling and crushing device

Abstract

The application discloses a charged waste lithium battery recycling and crushing device, which comprises a protective shell fixed above a base through a support, outer guard plates are fixed at two ends of the protective shell, and inner guard plates are fixed on opposite sides of the two outer guard plates through support columns; two groups of transmission mechanisms are arranged on left and right sides of the base respectively, and are oppositely distributed between the two groups of transmission mechanisms; the transmission mechanisms drive two groups of crushing rollers to oppositely rotate between the two groups of inner guard plates; a separation screen is fixedly connected with connecting ends at two sides, the connecting ends are rotatably arranged on surfaces of the inner guard plates, the separation screen is rotatably arranged on the inner side of the protective shell through the connecting ends, and a plurality of groups of convex plates are annularly arranged on the inner side surface of the separation screen. The application can effectively separate the fragments and the electrolyte under the condition of guaranteeing a good crushing effect, effectively distribute the motor torque, and make the device more reliable and practical.

Description

Technical Field

[0001] This invention relates to the field of crusher technology, and in particular to a device for recycling and crushing charged waste lithium batteries. Background Technology

[0002] Because disposable lithium batteries cannot be recharged, they need to be centrally recycled to prevent internal pollution of the environment, especially cylindrical batteries which are numerous but small in size. After being crushed and recycled, the materials are used in batches for secondary production to achieve the purpose of industrial circular production. The most common method for crushing and recycling these batteries is an industrial shredder, which uses rotating crushing rollers to apply pressure and crush the lithium batteries.

[0003] Current shredders use a two-roller rotation method to crush cylindrical batteries by squeezing them with crushing teeth. This method is not thorough enough, requiring the waste to be dumped and crushed again after each crushing cycle, or multi-stage crushing operations to be achieved by adding crushing rollers. This makes the crushing process time-consuming and labor-intensive. In addition, during the crushing process, the electrolyte inside the lithium battery cannot be effectively separated from the crushed waste. The electrolyte becomes corrosive when it comes into contact with air, causing corrosion to the surface parts of the shredder and affecting the subsequent crushing effect.

[0004] Therefore, how to provide a recycling and crushing device for charged waste lithium batteries is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] One objective of this invention is to provide a recycling and crushing device for charged waste lithium batteries. This invention can effectively separate and collect the electrolyte from other metal components of the battery while providing multi-stage crushing operations.

[0006] According to an embodiment of the present invention, a charged waste lithium battery recycling and crushing device includes a protective shell fixed above a base by a bracket, outer protective plates fixed at both ends of the protective shell, and inner protective plates fixed on opposite sides of the two sets of outer protective plates by support columns.

[0007] Two sets of transmission mechanisms are respectively set on the left and right sides of the base, and the two sets of transmission mechanisms are distributed opposite to each other. The transmission mechanisms drive the two sets of crushing rollers to rotate opposite to each other between the two sets of inner guard plates.

[0008] A separating screen is provided, with connecting ends fixedly connected to both sides. The connecting ends are rotatably mounted on the surface of the inner protective plate. The separating screen is rotatably mounted inside the protective shell through the connecting ends. Several sets of protruding plates are arranged in a ring on the inner surface of the separating screen. The connecting ends are connected to the transmission mechanism.

[0009] Furthermore, the transmission mechanism includes a motor and a pushing mechanism. The output end of the motor is fixed to a spline shaft, and spline teeth are slidably sleeved on the surface of the spline shaft. The inner surface of the spline teeth is formed into a spline shape that matches the surface of the spline shaft. The spline teeth mesh with the turning teeth, and the turning teeth are connected to the connecting end in a transmission manner.

[0010] Furthermore, a crushing tooth is also engaged on the side of the spline tooth away from the turning tooth. The turning tooth and the crushing tooth are respectively engaged on the left and right sides of the spline tooth. One side of the crushing tooth is connected to the toothed pulley assembly for transmission. The toothed pulley assembly is movably disposed on the opposite side of the outer guard plate and the inner guard plate. One side of the two sets of crushing rollers passes through the inner guard plate through the bushing and is connected to the toothed pulley assembly for transmission.

[0011] Furthermore, the toothed belt pulley assembly consists of four sets of pulleys and a single toothed belt. One side of the single set of pulleys is movably inserted through the outer guard plate via a shaft and fixed to the crushing teeth. The toothed belt pulley assembly drives two sets of crushing rollers to rotate in opposite directions between the two sets of inner guard plates through two sets of pulleys.

[0012] Furthermore, the pushing mechanism also includes an electric telescopic cylinder and a pushing frame. The output end of the electric telescopic cylinder is fixed to the top of the pushing frame. The surface of the pushing frame is slidably mounted on one side of the outer protective plate via a stabilizing slide rod. The bottom of the pushing frame is slidably mounted on the surface of the spline shaft via a sliding hole. The two sides of the spline teeth are fitted with the position of the sliding hole below the pushing frame via bearings. The pushing frame drives the spline teeth to move laterally on the surface of the spline shaft via the electric telescopic cylinder.

[0013] Furthermore, a feeding mechanism is provided inside the protective shell. The feeding mechanism includes a separating screen and two sets of connecting ends. There is a certain gap between the inner surface of the protective shell and the separating screen, and raised rings are provided on both sides of the inner surface of the protective shell near the separating screen.

[0014] Furthermore, a toothed ring is provided on the outer side of the connecting end, and three sets of transmission ratchet teeth arranged in a ring array about the axis of the connecting end are engaged on the surface of the toothed ring.

[0015] Furthermore, of the three sets of transmission ratchet teeth, two sets of transmission ratchet teeth are fixedly connected to the turning teeth in the two sets of transmission mechanisms, and a single set of transmission ratchet teeth moves on the outer surface of the protective shell through a coupling limit.

[0016] Furthermore, a hopper is fixed on the surface of the outer protective plate on one side of the protective shell, and the conveyor belt assembly is aligned below the hopper. The two sets of inner protective plates are fixed together by a connecting plate, and a suction box is fixedly connected to the upper part of the inner protective plate near the outer protective plate.

[0017] Furthermore, there are two sets of conveyor belt assemblies, which are respectively located below the inner protective plates and fixed by connecting plates. The outer protective plate has an opening near the conveyor belt assembly. One side of the conveyor belt assembly is located directly below the two sets of crushing rollers. The liquid outlet is fixedly connected to the bottom of the protective shell.

[0018] The beneficial effects of this invention are:

[0019] This invention features a separation screen with connecting ends on both sides that enable transmission to the drive ratchet, allowing direct transmission to the motor. As the separation screen rotates between two sets of inner guard plates, the internal convex plates move the pulverized waste back above the two sets of pulverizing rollers and cause it to fall, thus achieving multi-stage pulverization and improving the pulverization effect of lithium batteries.

[0020] This invention utilizes a push-away mechanism. Under normal circumstances, the motor drives two sets of crushing rollers to rotate on opposite sides of the inner protective plate through the meshing effect of the spline teeth and crushing teeth, and the transmission effect of the toothed pulley assembly to crush the lithium battery. The push-away mechanism pushes the spline teeth to move on the surface of the spline shaft, causing the spline teeth to separate from the crushing teeth. At this time, the spline teeth and the turning teeth are still meshed, and the actual output torque of the motor can increase, so as to drive the separation screen to rotate at high speed between the two sets of inner protective plates. Under the action of centrifugal force, the electrolyte can pass through the separation screen and be sprayed onto the inner surface of the protective shell, thereby realizing the separation of waste and electrolyte. Conversely, the push-away mechanism drives in the opposite direction to separate the spline teeth from the turning teeth. At this time, the output torque of the motor can directly act on the two sets of crushing rollers, increasing the crushing torque.

[0021] This invention utilizes a conveyor belt assembly positioned directly below two sets of crushing rollers. During normal crushing, the convex plate carries the waste material through the crushing rollers multiple times. The crushed waste material first falls onto the surface of the conveyor belt assembly, and then the moving conveyor belt assembly carries the waste material onto the separating screen. Thus, during discharge, only the reverse drive of the conveyor belt assembly is needed to send the waste material out from the conveyor belt assembly port. This design of the conveyor belt assembly effectively achieves the desired waste discharge result. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of a charged waste lithium battery recycling and crushing device proposed in this invention.

[0024] Figure 2This is a partial cross-sectional schematic diagram of the overall structure of a charged waste lithium battery recycling and crushing device proposed in this invention.

[0025] Figure 3 This is a schematic diagram of the separation screen position structure of a charged waste lithium battery recycling and crushing device proposed in this invention.

[0026] Figure 4 This is a schematic diagram of the position and structure of the outer protective plate of a charged waste lithium battery recycling and crushing device proposed in this invention.

[0027] Figure 5 This is a half-sectional schematic diagram of the overall structure of the feeding mechanism of a charged waste lithium battery recycling and crushing device proposed in this invention.

[0028] Figure 6 This invention proposes a device for recycling and crushing charged waste lithium batteries. Figure 2 Enlarged schematic diagram of the structure at point A.

[0029] Figure 7 This invention proposes a device for recycling and crushing charged waste lithium batteries. Figure 4 Enlarged schematic diagram of the structure at point B.

[0030] In the diagram: 1. Base; 2. Protective housing; 3. Liquid outlet; 4. Transmission mechanism; 5. Outer protective plate; 6. Hopper; 7. Inner protective plate; 8. Feeding mechanism; 9. Crushing roller; 10. Suction box; 11. Conveyor belt assembly;

[0031] 41. Electric motor; 42. Pushing mechanism; 43. Splined shaft; 44. Splined teeth; 45. Tilting teeth; 46. Crushing teeth; 47. Toothed belt pulley assembly; 81. Separating screen; 82. Convex plate; 83. Connecting end; 84. Gear ring; 85. Transmission ratchet;

[0032] 421. Electric telescopic cylinder; 422. Push frame; 423. Stabilizing slide bar. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0034] refer to Figure 1-7The system includes a protective shell 2 fixed above the base 1 by a bracket, with outer protective plates 5 fixed at both ends of the protective shell 2, and inner protective plates 7 fixed to opposite sides of the two sets of outer protective plates 5 by pillars; two sets of transmission mechanisms 4, which are respectively arranged on the left and right sides of the base 1 and are distributed opposite to each other, and the transmission mechanisms 4 drive the two sets of crushing rollers 9 to rotate opposite to each other between the two sets of inner protective plates 7; a separation screen 81, with connecting ends 83 fixedly connected to both sides of the separation screen 81, the connecting ends 83 being rotatably arranged on the surface of the inner protective plate 7, the separation screen 81 being rotatably arranged inside the protective shell 2 through the connecting ends 83, and a number of sets of protruding plates 82 being arranged in a ring on the inner surface of the separation screen 81, and the connecting ends 83 being connected to the transmission mechanisms 4.

[0035] In this embodiment, the base 1, protective shell 2, outer protective plate 5, and inner protective plate 7 can be considered as a whole. Due to the different positions of each component, they need to be described separately. The main function of the outer protective plate 5 and the inner protective plate 7 is to improve the sealing effect and prevent excessive external air from entering the interior and causing contact with the electrolyte. The two sets of crushing rollers 9 are directly mounted on opposite sides of the two sets of inner protective plates 7 and rotate in opposite directions through the transmission mechanism 4 to crush the lithium battery. The crushed lithium battery fragments fall onto the separation screen 81, which separates and filters the fragments from the electrolyte. At the same time, the separation screen 81 is driven by the transmission mechanism 4 through the connecting end 83, so that the separation screen 81 rotates between the two sets of inner protective plates 7, thereby driving the fragments to move to a higher position again through the convex plate 82 and fall down, where the two sets of crushing rollers 9 perform multi-stage crushing operations.

[0036] refer to Figure 2 , Figure 3 , Figure 4 and Figure 7 The transmission mechanism 4 includes a motor 41 and a pushing mechanism 42. The output end of the motor 41 is fixed to a splined shaft 43. A splined tooth 44 is slidably sleeved on the surface of the splined shaft 43. The inner surface of the splined tooth 44 is formed into a spline shape that matches the surface of the splined shaft 43. The splined tooth 44 meshes with a turning tooth 45. The turning tooth 45 is drivenly connected to the connecting end 83. A crushing tooth 46 also meshes with the side of the splined tooth 44 away from the turning tooth 45. The turning tooth 45 and the crushing tooth 46 mesh on the left and right sides of the splined tooth 44, respectively. One side of the crushing tooth 46 is drivenly connected to the toothed pulley assembly 47. The toothed pulley assembly 47 is movably disposed on the opposite side of the outer guard plate 5 and the inner guard plate 7. One side of the two sets of crushing rollers 9 passes through the inner guard plate 7 through a bushing and is drivenly connected to the toothed pulley assembly 47. The toothed belt pulley assembly 47 consists of four sets of pulleys and a single toothed belt. One side of the single set of pulleys passes through the outer guard plate 5 via a shaft and is fixed to the crushing teeth 46. The toothed belt pulley assembly 47 drives two sets of crushing rollers 9 to rotate in opposite directions between the two sets of inner guard plates 7 through two sets of pulleys.

[0037] In this embodiment, the motor 41 directly drives the splined teeth 44 to rotate via the splined shaft 43. The splined teeth 44 mesh with the turning teeth 45 and the crushing teeth 46 on both sides. On the one hand, the crushing teeth 46 can drive the toothed pulley assembly 47 to move while rotating. The toothed pulley assembly 47 directly drives the two sets of crushing rollers 9 to rotate and crush on opposite sides of the inner guard plate 7, thus realizing the basic crushing work. On the other hand, the splined teeth 44 drive the turning teeth 45 to rotate. The turning teeth 45 are connected to the feeding mechanism 8 through transmission, so that the separating screen 81 is driven to rotate, thereby realizing the cyclic crushing operation.

[0038] refer to Figure 7 The pushing mechanism 42 also includes an electric telescopic cylinder 421 and a pusher frame 422. The output end of the electric telescopic cylinder 421 is fixed above the pusher frame 422. The surface of the pusher frame 422 is slidably mounted on one side of the outer guard plate 5 through a stabilizing slide rod 423. The lower part of the pusher frame 422 is slidably mounted on the surface of the spline shaft 43 through a sliding hole. The two sides of the spline teeth 44 are fitted with the position of the sliding hole below the pusher frame 422 through bearings. The pusher frame 422 drives the spline teeth 44 to move laterally on the surface of the spline shaft 43 through the electric telescopic cylinder 421.

[0039] In this embodiment, the movement of the electric telescopic cylinder 421 can directly drive the push frame 422 to make stable lateral movement on the stabilizing slide bar 423. Its lower part is in contact with the two sides of the spline tooth 44 through the sliding hole. The description of the sliding hole does not affect the rotation effect of the spline shaft 43 and the spline tooth 44, but only provides a lateral thrust, which can be achieved by the internal bearing ball. It will not be described in detail here. In this way, when the spline tooth 44 moves on the surface of the spline shaft 43, it can engage or disengage with the turning tooth 45 or the breaking tooth 46, thereby achieving the effect of separate control.

[0040] refer to Figure 2-6 The inner side of the protective shell 2 is also provided with a feeding mechanism 8, which includes a separating screen 81 and two sets of connecting ends 83. There is a certain gap between the inner surface of the protective shell 2 and the separating screen 81, and the inner surface of the protective shell 2 is provided with convex rings on both sides near the separating screen 81. A toothed ring 84 is provided on the outer side of the connecting end 83. Three sets of transmission ratchet teeth 85 are arranged in a ring array about the axis of the connecting end 83. Among the three sets of transmission ratchet teeth 85, two sets of transmission ratchet teeth 85 are fixedly connected to the turning teeth 45 in the two sets of transmission mechanisms 4, and a single set of transmission ratchet teeth 85 moves on the outer surface of the protective shell 2 through a coupling limit.

[0041] In this embodiment, the separating screen 81 is stabilized by the connection of the two connecting ends 83. Specifically, the two sets of connecting ends 83 are connected by a connecting rod, and the separating screen 81 is fixed on the surface of the connecting rod. When the connecting ends 83 rotate on the surface of the inner guard plate 7, they can effectively drive the separating screen 81 to rotate. The inner surface of the separating screen 81 is fixedly connected to the protruding plate 82, and the orientation of the protruding plate 82 is aligned with the axis of the separating screen 81. When the separating screen 81 flips, the protruding plate 82 can move synchronously, driving the battery fragments to a high place and then falling between the crushing rollers 9 to achieve multi-stage crushing operation. The connecting ends 83 are engaged with the transmission ratchet 85 through the toothed ring 84 on the surface. The three sets of transmission ratchet 85 are used to assist the inner guard plate 7 in synchronously supporting the connecting ends 83. On the other hand, the meshing effect can directly achieve the transmission between the flipping teeth 45 and the motor 41, thereby realizing rotation control.

[0042] refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 A hopper 6 is fixed to the surface of the outer protective plate 5 on one side of the protective shell 2. The lower part of the hopper 6 is aligned with the conveyor belt assembly 11. The two sets of inner protective plates 7 are fixed together by connecting plates. The suction box 10 is fixedly connected to the upper part of the inner protective plate 7 near the outer protective plate 5. There are two sets of conveyor belt assemblies 11. The two sets of conveyor belt assemblies 11 are respectively set at the positions below the two sets of inner protective plates 7 and fixed by connecting plates. The outer protective plate 5 has an opening near the position of the conveyor belt assembly 11. One side of the conveyor belt assembly 11 is located directly below the two sets of crushing rollers 9. The liquid outlet 3 is fixedly connected to the lower part of the protective shell 2.

[0043] In this embodiment, the two sets of inner guard plates 7 are identical to the outer guard plate 5 in that they both have openings near the conveyor belt assembly 11. The two sets of inner guard plates 7 are also fixed together at this location by a connecting plate, providing an installation position for the conveyor belt assembly 11. The two sides of the conveyor belt assembly 11 are located inside the separating screen 81 and on one side of the outer guard plate 5, respectively. This allows the lithium battery inside the hopper 6 to fall above the conveyor belt assembly 11 and be conveyed to the inside of the separating screen 81 by the moving conveyor belt assembly 11, thereby achieving crushing. The conveyor belt assembly 11 is simultaneously positioned between the two sets of crushing rollers 9. Directly below, the fragments and electrolyte crushed by the crushing roller 9 first fall onto the surface of the conveyor belt assembly 11, and are then transported by the conveyor belt assembly 11 to the inside of the separating screen 81. Here, the electrolyte can be scraped off by a scraper or other device, while most of the electrolyte is combined with the fragments, so it will not be discussed in detail here. When it is necessary to discharge the material, the reverse drive of the conveyor belt assembly 11 can move the fragments out from the inside of the separating screen 81. At the same time, the suction box 10 can suck in the internal air or fill it with inert gas to reduce the contact between air and electrolyte.

[0044] Working principle: First, the suction box 10 on one side of the inner guard plate 7 is driven to fill the inside of the separation screen 81 with inert gas. Then, the lithium battery is put into the hopper 6 on one side of the outer guard plate 5. The lithium battery falls normally onto the surface of the conveyor belt assembly 11. The conveyor belt assembly 11 is then driven, moving the lithium battery to the inside of the separation screen 81 and into the screen. At this time, the motor 41 in the transmission mechanism 4 directly drives the spline shaft 43 and spline teeth 44 to rotate. The spline teeth 44 mesh with the turning teeth 45 and the crushing teeth 46, causing the crushing teeth 46 to rotate and drive the spline shaft 43 to rotate. The moving toothed pulley assembly 47 moves, and the toothed pulley assembly 47 is connected to the two sets of crushing rollers 9, so that the two sets of crushing rollers 9 rotate on opposite sides of the two sets of inner guard plates 7. At the same time, the turning tooth 45 rotates, driving the transmission ratchet 85 in the feeding mechanism 8 to rotate. The transmission ratchet 85 meshes with the toothed ring 84. At this time, the connecting end 83 rotates on the outer end of the two sets of inner guard plates 7, driving the separation screen 81 to rotate. The protrusion 82 fixedly connected to the inner side of the separation screen 81 can then convey the lithium battery to a high position and fall between the two sets of crushing rollers 9, where it is crushed by the crushing rollers 9. The fragments fall onto the conveyor belt assembly 11 and are then conveyed back to the inside of the separating screen 81. The separating screen 81 rotates to achieve a cyclic crushing operation, while the electrolyte passes through the separating screen 81 and is collected through the outlet 3 below the protective housing 2. After a period of crushing, the electric telescopic cylinder 421 in the pushing mechanism 42 is driven, and the pushing frame 422 slides on the surface of the stabilizing slide bar 423 under force, while simultaneously pushing the spline teeth 44 to one side. At this time, the spline teeth 44 separate from the crushing teeth 46 but remain engaged with the turning teeth 45, so that the torque of the motor 41 can directly... The effect is to drive the separation screen 81 to rotate. The speed of the separation screen 81 increases at this time, and the fragments cannot fall from a height. Under the action of centrifugal force, the fragments and electrolyte are separated and collected separately. Conversely, the electric telescopic cylinder 421 drives the spline tooth 44 to move in the opposite direction, which increases the actual pressure of the crushing roller 9. This is suitable for lithium batteries that are not easy to crush. Finally, after crushing, the conveyor belt assembly 11 drives the fragments in the opposite direction to be transported out of the inner side of the separation screen 81 and collected in the collection box on the base 1, realizing the separation and collection operation of fragments and electrolyte.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for recycling and crushing charged waste lithium batteries, characterized in that, It includes a protective shell (2) fixed above the base (1) by a bracket, with outer protective plates (5) fixed at both ends of the protective shell (2), and inner protective plates (7) fixed on opposite sides of the two sets of outer protective plates (5) by a support column; Two sets of transmission mechanisms (4) are respectively set on the left and right sides of the base (1), and the two sets of transmission mechanisms (4) are distributed opposite to each other. The transmission mechanisms (4) drive the two sets of crushing rollers (9) to rotate opposite to each other between the two sets of inner guard plates (7). A separating screen (81) is fixedly connected to connecting ends (83) on both sides. The connecting ends (83) are rotatably disposed on the surface of the inner protective plate (7). The separating screen (81) is rotatably disposed inside the protective shell (2) through the connecting ends (83). Several sets of protruding plates (82) are arranged in a ring on the inner surface of the separating screen (81). The connecting ends (83) are connected to the transmission mechanism (4) through transmission. The transmission mechanism (4) includes a motor (41) and a pushing mechanism (42). The output end of the motor (41) is fixed to a spline shaft (43). The surface of the spline shaft (43) is slidably fitted with spline teeth (44). The inner surface of the spline teeth (44) is formed into a spline shape that matches the surface of the spline shaft (43). The spline teeth (44) mesh with a turning tooth (45). The turning tooth (45) is connected to the connecting end (83) in a transmission manner. On the side away from the turning tooth (45), there is also a crushing tooth (46). The turning tooth (45) and the crushing tooth (46) are respectively engaged on the left and right sides of the spline tooth (44). One side of the crushing tooth (46) is connected to the toothed pulley assembly (47) for transmission. The toothed pulley assembly (47) is movably arranged on the opposite side of the outer guard plate (5) and the inner guard plate (7). One side of the two sets of crushing rollers (9) passes through the inner guard plate (7) through the bushing and is connected to the toothed pulley assembly (47) for transmission. The toothed belt pulley assembly (47) is composed of four sets of pulleys and a single toothed belt. One side of the single set of pulleys passes through the outer guard plate (5) via a shaft and is fixed to the crushing teeth (46). The toothed belt pulley assembly (47) drives two sets of crushing rollers (9) to rotate in opposite directions between the two sets of inner guard plates (7) through two sets of pulleys. The pushing mechanism (42) also includes an electric telescopic cylinder (421) and a pusher frame (422). The output end of the electric telescopic cylinder (421) is connected to the pusher frame (422). The push frame (422) is fixed above the outer guard plate (5) by means of a stabilizing slide rod (423). The push frame (422) is slidably mounted on one side of the outer guard plate (5) by means of a sliding hole. The push frame (422) is slidably mounted on the surface of the spline shaft (43) by means of a sliding hole. The two sides of the spline teeth (44) are in contact with the position of the sliding hole below the push frame (422) by means of bearings. The push frame (422) drives the spline teeth (44) to move laterally on the surface of the spline shaft (43) by means of an electric telescopic cylinder (421).

2. The charged waste lithium battery recycling and crushing device according to claim 1, characterized in that, The inner side of the protective shell (2) is also provided with a feeding mechanism (8). The feeding mechanism (8) includes a separating screen (81) and two sets of connecting ends (83). There is a certain gap between the inner surface of the protective shell (2) and the separating screen (81), and convex rings are provided on both sides of the inner surface of the protective shell (2) near the separating screen (81).

3. The device for recycling and crushing charged waste lithium batteries according to claim 2, characterized in that, A toothed ring (84) is provided on the outer side of the connecting end (83), and three sets of transmission ratchet teeth (85) are meshed on the surface of the toothed ring (84) in a ring array about the axis of the connecting end (83).

4. The charged waste lithium battery recycling and crushing device according to claim 3, characterized in that, Of the three sets of transmission ratchet teeth (85), two sets of transmission ratchet teeth (85) are fixedly connected to the turning teeth (45) in the two sets of transmission mechanisms (4), and a single set of transmission ratchet teeth (85) moves on the outer surface of the protective shell (2) through a coupling limit.

5. The device for recycling and crushing charged waste lithium batteries according to claim 1, characterized in that, A hopper (6) is fixed on the surface of the outer protective plate (5) on one side of the protective shell (2). The conveyor belt assembly (11) is aligned below the hopper (6). The two sets of inner protective plates (7) are fixed together by a connecting plate. The suction box (10) is fixedly connected above the inner protective plate (7) on the side close to the outer protective plate (5).

6. The charged waste lithium battery recycling and crushing device according to claim 5, characterized in that, The number of conveyor belt assemblies (11) is two sets. The two sets of conveyor belt assemblies (11) are respectively set at the position below the two sets of inner guard plates (7) and fixed by connecting plates. The outer guard plate (5) has an opening near the position of the conveyor belt assembly (11). One side of the conveyor belt assembly (11) is located directly below the two sets of crushing rollers (9). The liquid outlet (3) is fixedly connected to the bottom of the protective shell (2).

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