Lithium battery mixer rotary inner cylinder sealing structure

Abstract

The utility model discloses lithium battery mixer rotary inner tube sealing structure relates to sealing structure technical field, including the inner tube body of setting in the inner wall of outer tube, the top of outer tube is provided with the sealing cover, the inner wall of outer tube is provided with the annular plate, in the utility model, through setting up annular plate in the inner wall of outer tube, and install first rotary axle sealing piece with inner tube body surface contact, can effectively prevent the dust, liquid and so on produced in the mixing process material leakage to the outside of outer tube, has guaranteed the clean and safety of mixing environment, has reduced raw material waste and environmental pollution, and first rotary axle sealing piece surface is provided with helical spring, and helical spring can provide certain elasticity, makes sealing piece always with inner tube body surface keep close contact, even in the case where sealing piece has certain abrasion, can guarantee better sealing effect, prolongs the service life of sealing piece, and the maintenance cost of equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure technology, and in particular to the sealing structure of the rotating inner cylinder of a lithium battery mixer. Background Technology

[0002] In the lithium battery production process, the mixer is one of the key pieces of equipment, used to uniformly mix the positive and negative electrode materials, electrolyte, and other raw materials. The rotating inner cylinder of the mixer needs to achieve stable rotation during operation. Simultaneously, to ensure the stability of the mixing process and product quality, the sealing performance between the inner and outer cylinders must be guaranteed.

[0003] However, existing rotary inner cylinder sealing structures for lithium battery mixers have several problems. Firstly, dust and liquid splashing may occur during mixing; if the seal is ineffective, these substances can easily leak to the outside of the outer cylinder, wasting raw materials, polluting the surrounding environment, and even posing safety hazards. Secondly, the seals are prone to wear during rotation, leading to decreased sealing performance, affecting the mixer's normal operation, and increasing maintenance costs and downtime. Therefore, developing a durable and high-performance rotary inner cylinder sealing structure for lithium battery mixers is of significant practical importance. Utility Model Content

[0004] This invention provides a sealing structure for the rotating inner cylinder of a lithium battery mixer, which solves the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rotating inner cylinder sealing structure for a lithium battery mixer includes an inner cylinder body disposed inside an outer cylinder, and a sealing cap is provided at the top of the outer cylinder;

[0007] The inner wall of the outer cylinder is provided with an annular plate, and a bearing connected to the inner cylinder body is provided on one side of the annular plate. A first rotating shaft seal that contacts the surface of the inner cylinder body is installed at the top of the annular plate.

[0008] As a further description of the above technical solution:

[0009] A helical spring is provided on the surface of the first rotating shaft seal.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the outer cylinder is provided with an annular connector, and the top end of the annular connector is provided with an annular groove, and an annular rotating component connected to the surface of the inner cylinder body is rotatably connected inside the annular groove.

[0012] As a further description of the above technical solution:

[0013] The rotating component has a first groove on one side, and a second rotating shaft seal that contacts the surface of the inner cylinder body is connected inside the first groove.

[0014] As a further description of the above technical solution:

[0015] The surfaces of the connector and the rotating component are respectively provided with grooves, and the interior of the grooves is provided with sealing components.

[0016] As a further description of the above technical solution:

[0017] The sealing element is made of polytetrafluoroethylene.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] In this invention, by setting an annular plate on the inner wall of the outer cylinder and installing a first rotating shaft seal in contact with the surface of the inner cylinder body, it is possible to effectively prevent dust, liquid and other substances generated during the stirring process from leaking to the outside of the outer cylinder, ensuring the cleanliness and safety of the stirring environment, reducing raw material waste and environmental pollution. In addition, a helical spring is set on the surface of the first rotating shaft seal, which can provide a certain elasticity to keep the seal in close contact with the surface of the inner cylinder body. Even if the seal is worn to a certain extent, it can still ensure a good sealing effect, extend the service life of the seal, and reduce the maintenance cost of the equipment.

[0020] In this invention, the combined use of the annular connecting member and the annular rotating member on the inner wall of the outer cylinder, along with the second rotating shaft seal on one side of the rotating member, further enhances the stability of the inner cylinder during rotation, reduces the shaking of the inner cylinder during rotation, and ensures the uniformity and stability of the stirring process. Furthermore, the grooves on the surfaces of the connecting member and the rotating member, along with the seals, form a multi-layered sealing structure, sealing the gap between the inner and outer cylinders from multiple angles, greatly improving the overall sealing performance and effectively preventing leakage problems. Attached Figure Description

[0021] Figure 1 A schematic diagram of the sealing structure of the rotating inner cylinder of a lithium battery mixer;

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0023] Legend:

[0024] 1. Outer cylinder; 2. Inner cylinder body; 3. Sealing cover; 4. Annular plate; 5. Bearing; 6. First rotating shaft seal; 7. Connecting piece; 8. Rotating piece; 9. Second rotating shaft seal; 10. Seal. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 , Figure 2 The rotating inner cylinder sealing structure of the lithium battery mixer includes an inner cylinder body 2 disposed inside an outer cylinder 1, and a sealing cap 3 disposed at the top of the outer cylinder 1; an annular plate 4 is disposed on the inner wall of the outer cylinder 1, and a bearing 5 connected to the inner cylinder body 2 is disposed on one side of the annular plate 4; a first rotating shaft seal 6 is installed at the top of the annular plate 4, which contacts the surface of the inner cylinder body 2. By disposing of the annular plate 4 on the inner wall of the outer cylinder 1 and installing the first rotating shaft seal 6 in contact with the surface of the inner cylinder body 2, it is possible to effectively prevent dust, liquid and other substances generated during the mixing process from leaking to the outside of the outer cylinder 1. Furthermore, a helical spring is disposed on the surface of the first rotating shaft seal 6, which provides a certain elastic force to ensure that the first rotating shaft seal 6 always maintains tight contact with the surface of the inner cylinder body 2, and can ensure a good sealing effect even when the first rotating shaft seal 6 has a certain degree of wear.

[0027] Furthermore, a helical spring is provided on the surface of the first rotating shaft seal 6. The helical spring plays a crucial pre-tightening role, applying appropriate radial force to ensure that the sealing lip fits tightly against the inner cylinder surface, thereby guaranteeing sealing performance and normal operation of the equipment.

[0028] Furthermore, the inner wall of the outer cylinder 1 is provided with an annular connector 7, and the top of the annular connector 7 is provided with an annular groove. An annular rotating member 8 connected to the surface of the inner cylinder body 2 is rotatably connected inside the annular groove. The cooperation between the connector 7 and the rotating member 8, and the provision of a second rotating shaft seal 9 on one side of the rotating member 8, further enhance the stability of the inner cylinder during rotation and reduce the shaking of the inner cylinder during rotation.

[0029] Furthermore, a first groove is provided on one side of the rotating part 8, and a second rotating shaft seal 9 that contacts the surface of the inner cylinder body 2 is connected inside the first groove. The second rotating shaft seal 9 is used to seal the contact point between the rotating part 8 and the inner cylinder body 2, and a helical spring is also installed on the second rotating shaft seal 9.

[0030] Furthermore, grooves are respectively provided on the surfaces of the connector 7 and the rotating part 8, and a sealing element 10 is provided inside the groove. The sealing element 10 is used to seal the connection between the connector 7 and the rotating part 8 to prevent the leakage of raw materials.

[0031] Furthermore, the sealing element 10 is made of polytetrafluoroethylene (PTFE). PTFE is a material with excellent properties such as corrosion resistance, high temperature resistance, and low coefficient of friction. It can adapt to the complex working environment during the stirring process of lithium batteries, ensuring the stable performance of the sealing element 10 during long-term use, and further improving the reliability and durability of the sealing structure.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rotating inner cylinder sealing structure for a lithium battery mixer, comprising an inner cylinder body (2) disposed inside an outer cylinder (1), characterized in that: The top of the outer cylinder (1) is provided with a sealing cap (3); The inner wall of the outer cylinder (1) is provided with an annular plate (4), and a bearing (5) connected to the inner cylinder body (2) is provided on one side of the annular plate (4). The top of the annular plate (4) is equipped with a first rotating shaft seal (6) that contacts the surface of the inner cylinder body (2).

2. The rotating inner cylinder sealing structure of the lithium battery mixer according to claim 1, characterized in that: The surface of the first rotating shaft seal (6) is provided with a helical spring.

3. The rotating inner cylinder sealing structure of the lithium battery mixer according to claim 1, characterized in that: The inner wall of the outer cylinder (1) is provided with an annular connector (7), and the top end of the annular connector (7) is provided with an annular groove, and an annular rotating part (8) connected to the surface of the inner cylinder body (2) is rotatably connected inside the annular groove.

4. The rotating inner cylinder sealing structure of the lithium battery mixer according to claim 3, characterized in that: The rotating part (8) has a first groove on one side, and a second rotating shaft seal (9) that contacts the surface of the inner cylinder body (2) is connected inside the first groove.

5. The rotating inner cylinder sealing structure of the lithium battery mixer according to claim 3, characterized in that: The surfaces of the connector (7) and the rotating part (8) are respectively provided with grooves, and the interior of the grooves is provided with a sealing element (10).

6. The rotating inner cylinder sealing structure of the lithium battery mixer according to claim 1, characterized in that: The sealing element (10) is made of polytetrafluoroethylene.

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