Box body structure of double-shaft shredder
By adopting T-shaped seals and bearing external design in the dual-shaft shredder, the problem of insufficient sealing is solved, and higher sealing and bearing protection is achieved, extending service life and reducing environmental pollution.
Patent Information
- Application Number
- CN202420713523.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-04-09
AI Technical Summary
When existing dual-shaft shredders crush batteries, insufficient sealing properties cause dust to enter the bearing, shorten the bearing life and pollute the environment.
The design of the T-shaped first seal in contact with the upper box is adopted, combined with the static seal and dynamic seal structure, the airtightness of the box joint surface is enhanced, and the bearing is arranged outside the rotor, and the bearing end cover is equipped to prevent external impact and contamination.
It improves the sealing of the double-shaft shredder, prevents dust from entering the bearing, extends the bearing life, reduces harmful gas leakage, and protects the environment.
Smart Images
Figure CN223171010U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of new energy, in particular to a recycling and crushing structure for batteries. Background Art
[0002] At present, the main objects of double-shaft shredders are domestic waste, construction waste, solid waste, etc. Since the requirement for gas tightness in double-shaft shredders is not high, dust is generated when recycling and crushing these materials. In current double-shaft shredders, the bearings on the rotor are embedded in the box body, and the bearings of the rotor and the box body are sealed by lip-shaped rotary shaft seals, and the upper and lower box bodies are sealed tightly by plane contact. This results in high requirements for the assembly accuracy of the upper box body during processing, and the dust generated during battery crushing easily enters the bearings, leading to a serious reduction in the service life of the bearings. The harmful gases generated during battery crushing easily penetrate from the joint surface of the upper and lower box bodies, causing pollution to the surrounding environment. Summary of the Invention
[0003] In view of the above-mentioned disadvantages of the prior art, the purpose of the utility model is to provide a double-shaft shredder box body structure with high tightness.
[0004] The utility model provides a double-shaft shredder box body structure, including: an upper box body, a lower box body, a rotor and a first seal. The upper box body is located above the lower box body, a working cavity is formed between the upper box body and the lower box body, the rotor is located inside the working cavity, and the first seal is located between the upper box body and the lower box body and on the rotor.
[0005] Further, the first seal is T-shaped with a through hole in the middle.
[0006] Further, the first seal contacts the upper box body, and a first seal groove is provided on the contact surface between the first seal and the upper box body.
[0007] Further, first seal grooves are provided on the surfaces of the flanges at both ends of the first seal.
[0008] Further, a second seal groove is provided on the inner side of the through hole of the first seal. Preferably, the second seal groove is rectangular.
[0009] Further, the length of the second seal groove is greater than the width of the rotor.
[0010] Further, there are 2 or more second seal grooves on the inner side of the first seal.
[0011] Further, a third seal groove is provided on the surface of the lower box body in contact with the upper box body, and a third seal is provided in the third seal groove.
[0012] Further, it also includes a bearing located outside the rotor, and there is a bearing seat below the bearing. Preferably, bearing end covers are also provided at the left and right ends of the bearing.
[0013] In summary, for the box structure of the double-shaft shredder of the present utility model, a static seal is formed between the upper box body and the first seal through the first seal, and a dynamic seal is formed between the rotor and the first seal, thereby improving the sealing performance of the double-shaft shredding box. In addition, a leveling process is performed on the bottom surface of the upper box body and the top surface of the lower box body, enhancing the airtightness at the joint surface. By arranging the bearings outside the rotor and setting bearing end caps at both the left and right ends, it not only helps prevent the bearings from being externally impacted but also prevents sand, dust, or other harmful substances from entering the bearings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 Shows a schematic diagram of the box structure of the double-shaft shredder of the present utility model.
[0015] Figure 2 Shows a schematic diagram of the first seal of the present utility model.
[0016] Figure 3 Shows a schematic diagram of the bearing of the present utility model.
[0017] Figure 4 Shows a schematic diagram of the rotor of the present utility model.
[0018] DESCRIPTION OF REFERENCE NUMERALS
[0019] 100 - Box structure of double-shaft shredder
[0020] 01 - Upper box body
[0021] 02 - Lower box body
[0022] 021 - Third seal groove
[0023] 022 - Third seal
[0024] 03 - Rotor
[0025] 04 - First seal
[0026] 041 - Through hole
[0027] 042 - Flange
[0028] 043 - First seal groove
[0029] 044 - First sealing ring
[0030] 045 - Second seal groove
[0031] 05 – Working chamber
[0032] 061 – Bearing
[0033] 062 – Bearing seat
[0034] 063 - Bearing end cover
[0035] 064 – Bearing seal Detailed implementation manners
[0036] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.
[0037] Please refer to Figures 1 to 4 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration, and are not used to limit the implementation scope of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present utility model can implement.
[0038] Figure 1 shows a schematic diagram of the box structure of the twin - shaft shredder of the present utility model. Figure 2 shows a schematic diagram of the first seal of the present utility model. Figure 3 shows a schematic diagram of the bearing of the present utility model. Figure 4 shows a schematic diagram of the rotor of the present utility model.
[0039] As Figure 1 shown, a box structure 100 of a twin - shaft shredder includes: an upper box body 01, a lower box body 02, a rotor 03 and a first seal 04. After the upper box body 01 and the lower box body 02 are spliced, a working cavity 05 is formed in the middle. The rotor 03 is located inside the working cavity 05, and the first seal 04 is located between the upper box body 01 and the lower box body 02 and on the rotor 03.
[0040] As Figure 2 shown, the first seal 04 is T - shaped, with a through - hole 041 in the middle. The flanges 042 at both ends are in contact with the upper box body 01. A first seal groove 043 is provided on the surface of the flange 042 in contact with the upper box body 01. A first sealing ring 044 is placed in the first seal groove 043. The flange 042 is in contact with the upper box body 01. The first seal groove 043 and the first sealing ring 044 make there be no relative movement between the first seal 04 and the upper box body 01, realizing the static seal between the upper box body 01 and the first seal 04.
[0041] Inside the through hole 041 of the first seal 04, a second seal groove 045 is provided. The second seal groove 045 is rectangular. The second seal groove 045 is located below the rotor 03. When the rotor 03 rotates, there is relative movement between the rotor 03 and the second seal groove 045, realizing the dynamic seal between the rotor 03 and the second seal groove 044. Preferably, there are two or more second seal grooves 045 inside the first seal 04.
[0042] In another embodiment, the length L1 of the first seal 04 is greater than the length L2 of the rotor 03. Preferably, the length L3 of the second seal groove 045 is greater than the length L2 of the rotor 03.
[0043] The bottom surface of the upper box body 01 and the top surface of the lower box body 02 are subjected to a planing process, which improves the surface finish and enhances the airtightness at the joint surface A between the upper box body 01 and the lower box body 02. As Figure 4 shown, a third seal groove 021 is provided on the top surface of the lower box body 02, and a third seal 022 is installed in the third seal groove 021, further improving the sealing performance at the joint surface A. The size of the third seal 022 matches the size of the third seal groove 021.
[0044] In the double-shaft shredder box structure 100, there is also a bearing 061 located outside the rotor 03. As Figure 3 shown, a bearing seat 062 is provided below the bearing 061 for supporting the bearing 061. Bearing end caps 063 are also provided at the left and right ends of the bearing 061 to protect the bearing 061 from external impact and prevent sand, dust or other harmful substances from entering the bearing 061, thereby causing the bearing 061 to be contaminated and eroded. There is also a fourth seal 064 between the bearing 061 and the bearing end cap 063, improving the sealing performance between the bearing end cap 063 and the bearing 061. By arranging the bearing 061 outside the double-shaft shredder box 100 and not arranging bearings in the rotor 03, the bearing seat 062 and the fourth seal 064 are added to ensure the lubrication effect of the bearing 061.
[0045] In the double-shaft shredder box structure of the present application, the first seal realizes the static seal between the upper box body and the first seal, as well as the dynamic seal between the rotor and the first seal, thereby improving the sealing performance of the double-shaft shredder box. In addition, the bottom surface of the upper box body and the top surface of the lower box body are subjected to a planing process, enhancing the airtightness at the joint surface. By arranging the bearing outside the double-shaft shredder box and providing bearing end caps at both ends, it not only helps to prevent the bearing from being externally impacted but also prevents sand, dust or other harmful substances from entering the bearing.
[0046] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.
Claims
1. A box structure of a double-shaft shredder, characterized in that, Comprising: An upper box body, a lower box body, a rotor and a first seal. The upper box body is located above the lower box body. A working chamber is formed between the upper box body and the lower box body. The rotor is located inside the working chamber. The first seal is located between the upper box body and the lower box body and on the rotor.
2. The biaxial shredder box structure according to claim 1, characterized in that, The first seal is T-shaped with a through hole in the middle.
3. The double-shaft shredder box structure according to claim 2, characterized in that, The first seal contacts the upper box body, and a first seal groove is provided on the contact surface between the first seal and the upper box body.
4. The biaxial shredder housing structure according to claim 3, wherein, First seal grooves are provided on the surfaces of the flanges at both ends of the first seal.
5. The biaxial shredder box structure according to claim 2, characterized in that, A second seal groove is provided on the inner side of the through hole of the first seal.
6. The biaxial shredder box structure according to claim 5, characterized in that, The second seal groove is rectangular.
7. The biaxial shredder housing structure according to claim 6, characterized in that, The length of the second seal groove is greater than the width of the rotor.
8. The double-shaft shredder box body structure according to claim 5, wherein There are 2 or more of the second seal grooves on the inner side of the first seal.
9. The biaxial shredder box structure according to claim 1, characterized in that, A third seal groove is provided on the surface of the lower box body where it contacts the upper box body, and a third seal is provided in the third seal groove.
10. The biaxial shredder box structure according to claim 1, characterized in that, It further includes a bearing located outside the rotor, and there is a bearing seat below the bearing.
11. The biaxial shredder box structure according to claim 10, characterized in that, Bearing end covers are further provided at the left and right ends of the bearing.