Grinding device for hard carbon negative electrode carbonization

By adopting a mechanical transmission system composed of an adjustable grinding plate and gears in the grinding device for carbonization of hard carbon negative electrodes, the problem of uneven grinding is solved, efficient and uniform carbon rod grinding is achieved, and battery performance is improved.

CN223406714UActive Publication Date: 2025-10-03HUAKAI NEW ENERGY TECHNOLOGY (ZHONGSHAN) CO LTD
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Patent Information

Application Number
CN202422599330.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-10-03
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

Existing grinding devices easily cause uneven grinding of hard carbon negative electrode materials, affecting subsequent use effects.

Method used

A grinding device for carbonization of hard carbon negative electrode was designed. The grinding plate was adjusted by adjusting the combination of gear rod, transmission gear and crown gear to realize the conversion of power direction from vertical to horizontal, driving the grinding plate to rotate and achieve uniform grinding.

Benefits of technology

By optimizing the grinding process through the mechanical transmission system, the grinding efficiency and quality are improved, the uniform particle size distribution of the carbon rod is ensured, and the consistency and cycle stability of the battery are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a grinding device, belongs to the technical field of hard carbon negative electrodes, and particularly relates to a grinding device for hard carbon negative electrode carbonization, which comprises an outer shell, a grinding structure is arranged in the outer shell, and the grinding structure comprises a plurality of adjusting frosted plates which are uniformly distributed in the outer shell. The adjusting frosted plate is connected with a transmission gear meshed with the adjusting frosted plate through an adjusting gear rod arranged in the adjusting frosted plate, a crown-shaped gear correspondingly meshed with the transmission gear is arranged below the transmission gear, and the carbon rod is ground by means of the adjusting frosted plate through the grinding structure arranged in the outer shell. The carbon rod extrudes the adjusting frosted plate, the adjusting frosted plate adjusts the curvature of the adjusting frosted plate and adaptively extrudes the carbon rod, and the adjusting gear rod is driven to move along with pushing of the carbon rod, so that the transmission gear is driven to drive the crown-shaped gear to rotate, the power direction is converted from the vertical direction to the horizontal direction, and then the adjusting frosted plate is driven to rotate. And efficient grinding of the carbon rod is achieved.
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Description

Technical Field

[0001] The utility model provides a grinding device, which belongs to the technical field of hard carbon negative electrodes, and particularly relates to a grinding device for carbonizing hard carbon negative electrodes. Background Art

[0002] Hard carbon is amorphous carbon that is difficult to graphitize even at temperatures above 2500°C, deriving its name from its high mechanical hardness. Hard carbon materials are amorphous carbon materials with disordered graphite-like layers, abundant edge and surface defects, and a unique nanoporous structure. Carbonization is the process of converting organic materials into carbon materials with high specific surface area under high temperature conditions. The grinding process breaks down large particles and agglomerates in hard carbon materials, making the material's particle size distribution more uniform, thereby improving battery consistency and cycle stability.

[0003] In electrochemical experiments, the morphology of electrode materials significantly influences their electrochemical performance. Typically, to achieve effective contact and uniform electrochemical reaction, electrode materials are processed into specific geometric shapes, such as cylindrical, spherical, or flake. However, during the grinding process, grinding devices often grind in a single direction, which can easily lead to uneven grinding of carbon rods, affecting subsequent use. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the embodiments of the present application provide a grinding device for carbonizing a hard carbon negative electrode, thereby solving the problem of uneven grinding in the prior grinding device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a grinding device for carbonizing a hard carbon negative electrode, comprising an outer shell, a grinding structure provided inside the outer shell, the grinding structure comprising a plurality of evenly distributed adjusting frosting plates arranged inside the outer shell, the adjusting frosting plates being connected to a transmission gear meshing with themselves through an adjusting gear rod arranged inside themselves, and a crown gear meshing with itself correspondingly provided below the transmission gear.

[0006] Preferably, a connecting ring corresponding to the adjusting frosting plate is sleeved on a side of the adjusting frosting plate away from the adjusting rod, and a groove corresponding to the adjusting frosting plate is provided on the connecting ring.

[0007] Preferably: one end of the adjusting frosting plate is provided with a fixing bolt which passes through the plate and is inserted into the groove, the other end of the adjusting frosting plate is provided with a limiting piece which passes through the plate, the groove is provided with a sliding groove corresponding to the limiting piece, and the sliding groove is provided with a spring which is fixedly connected to the inner piece.

[0008] Preferably, a plurality of insertion rods are fixedly connected to one side of the connecting ring close to the transmission gear, and insertion holes corresponding to the insertion rods are provided on the other side of the connecting ring.

[0009] Preferably: the side of the crown gear away from the transmission gear is fixedly connected to a base plate corresponding to the connecting ring and the insertion rod, the adjusting gear rod passes through the base plate, and the base plate is connected to brackets placed at both ends of the transmission gear through an annular limit groove, and the end of the bracket close to the limit groove is fixedly connected to the corresponding sliding part, and a return spring is provided between the base plate and the outer shell and is sleeved on the outside of the adjusting gear rod.

[0010] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0011] The utility model realizes grinding of the carbon rod by arranging a grinding structure placed inside the outer shell with the help of an adjustable grinding plate. When the carbon rod is inserted into the outer shell, the carbon rod squeezes the adjusting grinding plate, and the adjusting grinding plate adjusts its own curvature and adaptively squeezes the carbon rod. As the carbon rod is pushed forward, the adjusting gear rod is driven to move, thereby driving the transmission gear to drive the crown gear to rotate, realizing the conversion of the power direction from the vertical direction to the horizontal direction, and then driving the adjusting grinding plate to rotate, thereby realizing efficient grinding of the carbon rod.

[0012] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional schematic diagram of a grinding device for carbonizing a hard carbon negative electrode according to the present invention;

[0014] Figure 2 This is a cross-sectional view of a grinding device for carbonizing a hard carbon negative electrode according to the present invention;

[0015] Figure 3 This is an exploded view of the adjustment grinding plate of a grinding device for carbonizing a hard carbon negative electrode according to the present invention;

[0016] Figure 4 This is a cross-sectional view of the bottom plate of a grinding device for carbonizing a hard carbon negative electrode according to the present invention.

[0017] As shown in the figure:

[0018] 1. Outer shell;

[0019] 11. Transmission gear; 12. Crown gear; 13. Insert rod; 14. Insert hole; 15. Bottom plate; 16. Annular limit groove; 17. Return spring;

[0020] 2. Grinding structure;

[0021] 21. Adjusting frosting plate; 22. Adjusting gear rod; 23. Connecting ring; 24. Groove; 25. Limiting piece; 26. Sliding groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are for illustrative purposes only and do not represent the only implementation method.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains; the terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention; the term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] like Figure 1 and Figure 2 As shown, a grinding device for carbonizing a hard carbon negative electrode comprises an outer shell 1, a grinding structure 2 is provided inside the outer shell 1, a connecting ring 23 corresponding to the adjusting grinding plate 21 is sleeved on the side of the adjusting grinding plate 21 away from the adjusting rod 22, and a groove 24 corresponding to the adjusting grinding plate 21 is provided on the connecting ring 23, and the grinding structure 2 comprises a plurality of evenly distributed adjusting grinding plates 21 arranged inside the outer shell 1, and the adjusting grinding plate 21 is connected to a transmission gear 11 meshing with itself through an adjusting gear rod 22 arranged inside itself, and a crown gear 12 meshing with itself is provided below the transmission gear 11.

[0026] In this embodiment, the utility model patent describes a grinding mechanism 2 built into the outer shell 1, which grinds the carbon rod through an adjustable grinding plate 21. When the carbon rod is inserted into the outer shell 1, its pressure acts on the grinding plate 21, prompting the grinding plate 21 to adjust its own curvature to adapt to and squeeze the carbon rod. As the carbon rod advances, it drives the adjusting gear rod 22 to move, and then drives the transmission gear 11 and the crown gear 12 to rotate, realizing the conversion of the power direction from vertical to horizontal. This process ultimately causes the grinding plate 21 to rotate to achieve efficient grinding of the carbon rod. This design optimizes the grinding process and improves the grinding efficiency and quality through the mechanical transmission system, especially through the setting of the crown gear 12.

[0027] like Figure 3 and Figure 4 As shown, one end of the adjusting frosting plate 21 is provided with a fixing bolt that passes through itself and is inserted into the groove 24, and the other end of the adjusting frosting plate 21 is provided with a limiting piece 25 that passes through itself, and the groove 24 is provided with a sliding groove 26 corresponding to the limiting piece 25, and the sliding groove 26 is provided with a spring fixedly connected to the internal piece 25, and the connecting ring 23 is fixedly connected to a plurality of plug rods 13 on the side close to the transmission gear 11, and the other side of the connecting ring 23 is provided with a socket 14 corresponding to the plug rod 13, and the crown gear 12 is fixedly connected to the side away from the transmission gear 11 with the connecting ring 23 and the plug rod 13. The adjusting gear rod 22 passes through the bottom plate 15, and the bottom plate 15 is connected to the brackets placed at both ends of the transmission gear 11 through an annular limiting groove 16, and the bracket is fixedly connected to the corresponding sliding piece at one end close to the limiting groove 16.

[0028] In this embodiment, a baffle fixedly connected to the adjustment gear rod 11 is located between the adjustment grinding plates 21. The carbon rod pushes the baffle, which in turn pushes the adjustment gear rod 11. When the base plate 15 is rotated by the crown gear 12, the transmission gear 11, with the help of the bracket and the limit slot 16, ensures that it always contacts the adjustment gear rod 11. When the carbon rod is pulled outward, the return spring 17 pushes the adjustment gear rod 11 back to its original position, thereby rotating the crown gear 12 and re-grinding. Using the insertion rod 13 and the socket 14, the user can customize the height of the grinding structure 2, that is, the number of layers of the connecting ring 23.

[0029] It should be noted that, if the grinding efficiency or intensity is to be increased, a driving device may be added to directly drive the crown gear 12 . The specific situation is determined by those skilled in the art during use.

[0030] When in use, before operation, check the integrity and function of the grinding device, including whether the power supply, connecting parts, etc. are firm, and whether key components such as the grinding plate, adjustment gear rod, transmission gear and crown gear are intact. Insert the carbon rod to be ground into the outer shell 1, ensuring good contact between the carbon rod and the adjustable grinding plate 21 to achieve effective pressure transmission during the grinding process. Depending on the size of the carbon rod and the grinding requirements, the insertion of the carbon rod automatically adjusts the position of the adjustable grinding plate 21, compressing the spring to ensure uniform contact with the carbon rod and grinding. By pushing the carbon rod, it applies pressure to the adjustable grinding plate 21. The grinding plate 21 adjusts its curvature according to the pressure, adapting to and squeezing the carbon rod to achieve the grinding effect. As the carbon rod is pushed forward, the adjustment gear rod 22 moves, driving the transmission gear 11 and the crown gear 12 to rotate, achieving a conversion of the power direction from vertical to horizontal, further driving the grinding plate 21 to rotate for efficient grinding. By adjusting the insertion rod 13 and the socket 14, the user can customize the height of the grinding structure 2, that is, adjust the number of layers of the connecting ring 23, to meet the grinding requirements of different depths. If the efficiency or intensity of the grinding needs to be increased, a drive device can be added to directly drive the crown gear 12. The specific situation is determined by the operator according to actual needs.

[0031] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this technology may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the claims.

Claims

1. A grinding device for carbonizing a hard carbon negative electrode, comprising an outer shell (1), characterized in that: The outer shell (1) is provided with a grinding structure (2) inside. The grinding structure (2) includes a plurality of evenly distributed adjusting grinding plates (21) arranged inside the outer shell (1). The adjusting grinding plates (21) are connected to a transmission gear (11) meshed with the adjusting grinding plates via an adjusting gear rod (22) arranged inside the adjusting grinding plates. A crown gear (12) meshed with the adjusting grinding plates (21) is provided below the transmission gear (11).

2. The grinding device for carbonizing a hard carbon negative electrode according to claim 1, characterized in that: A connecting ring (23) corresponding to the adjusting frosting plate (21) is sleeved on a side away from the adjusting gear rod (22), and a groove (24) corresponding to the adjusting frosting plate (21) is provided on the connecting ring (23).

3. The grinding device for carbonizing a hard carbon negative electrode according to claim 2, characterized in that: One end of the adjusting frosting plate (21) is provided with a fixing bolt which passes through the adjusting frosting plate (21) and is inserted into the groove (24); the other end of the adjusting frosting plate (21) is provided with a limiting member (25) which passes through the adjusting frosting plate (21); the groove (24) is provided with a sliding groove (26) corresponding to the limiting member (25); and a spring which is fixedly connected to the limiting member (25) is provided inside the sliding groove (26).

4. The grinding device for carbonizing a hard carbon negative electrode according to claim 2, characterized in that: A plurality of insertion rods (13) are fixedly connected to one side of the connecting ring (23) close to the transmission gear (11), and a socket (14) corresponding to the insertion rods (13) is provided on the other side of the connecting ring (23).

5. The grinding device for carbonizing a hard carbon negative electrode according to claim 4, characterized in that: A bottom plate (15) corresponding to the connecting ring (23) and the inserting rod (13) is fixedly connected to the side of the crown gear (12) away from the transmission gear (11); the adjusting gear rod (22) passes through the bottom plate (15); a return spring (17) sleeved on the outside of the adjusting gear rod (22) is provided between the bottom plate (15) and the outer shell (1); brackets placed at both ends of the transmission gear (11) are connected to the bottom plate (15) through an annular limiting groove (16); and a corresponding sliding member is fixedly connected to one end of the bracket close to the limiting groove (16).