Bearing closed type grinding and pulping machine
By setting up a multi-layer oil seal structure in the grinding mill, the problems of material contamination of lubricating oil and bearing corrosion are solved, the bearings are sealed and protected, and the operational reliability and lifespan of the equipment are improved.
Patent Information
- Application Number
- CN202520426036.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Existing grinding and slurry mills have problems such as wear and tear on the ball bearings, damage to the adjusting handwheel, and material powder contamination of the lubricating oil. Wear of the oil seals causes slurry to enter the bearing chamber, resulting in bearing corrosion and lubricating oil failure.
A planar bearing and a first oil seal are installed inside the adjusting handwheel, a top convex shaft is installed on the rotor, and a second and a third oil seal are installed on the bearing body and the bracket, respectively, forming a multi-layer oil seal structure to prevent materials from entering the bearing cavity and to prevent lubricant contamination.
It effectively prevents materials from entering the bearing cavity, avoids lubricant contamination, prevents bearing damage, and improves equipment reliability and lifespan.
Smart Images
Figure CN223970058U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding and pulping machines, specifically to a bearing-enclosed grinding and pulping machine. Background Technology
[0002] In industrial production, the demand for crushing and grinding various materials is widespread and diverse. Bearing crushers, as a common type of material crushing equipment, play a vital role in many industries.
[0003] Existing grinding mill rotor adjustment methods typically involve installing a ball bearing on the adjustment handwheel, with the ball bearing resting against the flat surface of the rotor plug. This design leads to the ball bearing wearing down the plug and the adjustment handwheel. Furthermore, the lubricant from the ball bearing contaminates the material, and material powder also enters the ball bearing cavity, absorbing the lubricant and causing dry grinding. In addition, current machines only have an oil seal on the grinding chamber. When the oil seal wears down, the ground powder and slurry pass through the oil seal directly into the bearing chamber, causing bearing corrosion, loss of lubrication, and bearing damage. Utility Model Content
[0004] Therefore, to address the aforementioned shortcomings, this utility model provides a bearing-sealed grinding and slurry mill. During operation, oil seal 3A effectively prevents material from entering the bearing cavity and also prevents lubricant contamination of the material within the bearing cavity.
[0005] This utility model is implemented as follows: a bearing-enclosed grinding mill is constructed, including a bracket (1), a machine cover (2), a bearing body (3), a main shaft (4), a pulley (5), a rotor (6), an adjusting handwheel (7), and a feed hopper seat (8). The feature is that a plane bearing (7A) and a first oil seal (7B) are provided inside the adjusting handwheel (7), and a top convex shaft (6A) is provided on the rotor (6). During operation, the top convex shaft (6A) passes through the first oil seal (7B) provided on the adjusting handwheel (7) and interacts with the plane bearing (7A). When the adjusting handwheel (7) rotates, the plane bearing (7A) pushes the rotor (6) to move axially on the main shaft (4).
[0006] According to the present invention, a bearing-enclosed grinding mill is characterized in that: a second oil seal (3A) is provided on the bearing body (3), a third oil seal (1A) is provided on the bracket (1), and a material leakage gap (9) is provided between the third oil seal (1A) and the second oil seal (3A). When running, the second oil seal (3A) can effectively block the material from entering the bearing cavity, and can also block the lubricant contaminant material in the bearing cavity.
[0007] This utility model has the following advantages: This application provides a bearing-enclosed grinding and slurry mill. The improved mill features a planar bearing and a first oil seal inside the adjusting handwheel, and a top convex shaft on the rotor. During operation, the top convex shaft passes through the first oil seal on the adjusting handwheel and interacts with the planar bearing. When the adjusting handwheel rotates, the planar bearing pushes the rotor to move axially on the main shaft. A second oil seal is provided on the bearing body, and a third oil seal is provided on the bracket. A material leakage gap is provided between the third oil seal and the second oil seal. During operation, the second oil seal can effectively prevent material from entering the bearing cavity and can also prevent lubricant contamination of the material within the bearing cavity. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the overall implementation of this application;
[0009] Figure 2 This is a schematic diagram of the implementation inside the hood in this application;
[0010] Figure 3 This is a schematic diagram of the outer side of the hood in this application;
[0011] Figure 4 This is a schematic diagram of the adjusting handwheel in this application;
[0012] Figure 5 This is a schematic diagram of the bearing housing in this application.
[0013] The components include: bracket 1, third oil seal 1A, machine cover 2, bearing body 3, second oil seal 3A, main shaft 4, pulley 5, rotor 6, top convex shaft 6A, adjusting handwheel 7, flat bearing 7A, first oil seal 7B, feed hopper seat 8, and material leakage gap 9. Detailed Implementation
[0014] The following will be combined with the appendix Figures 1-5 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0015] This utility model provides a bearing-enclosed grinding and pulping mill, such as... Figures 1-5 As shown, it can be implemented in the following manner; including bracket 1, machine cover 2, bearing body 3, main shaft 4, pulley 5, rotor 6, adjusting handwheel 7, and feed hopper seat 8; the adjusting handwheel 7 is provided with a flat bearing 7A and a first oil seal 7B, and the rotor 6 is provided with a top convex shaft 6A.
[0016] During operation, the top convex shaft 6A passes through the first oil seal 7B set on the adjusting handwheel 7 and interacts with the flat bearing 7A. When the adjusting handwheel 7 rotates, the flat bearing 7A pushes the rotor 6 to move axially on the main shaft 4.
[0017] In this application, the bearing body 3 is provided with a second oil seal 3A, and the bracket 1 is provided with a third oil seal 1A. A material leakage gap 9 is provided between the third oil seal 1A and the second oil seal 3A. When running, the second oil seal 3A can effectively prevent material from entering the bearing cavity, and can also prevent lubricant contaminants in the bearing cavity from entering the bearing cavity.
[0018] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A bearing-enclosed grinding mill, comprising a bracket (1), a cover (2), a bearing body (3), a main shaft (4), a pulley (5), a rotor (6), an adjusting handwheel (7), and a feed hopper (8), characterized in that; The adjusting hand wheel (7) is provided with a plane bearing (7A) and a first oil seal (7B), and the rotor (6) is provided with a top convex shaft (6A); during operation, the top convex shaft (6A) passes through the first oil seal (7B) arranged on the adjusting hand wheel (7) and acts on the plane bearing (7A), and when the adjusting hand wheel (7) rotates, the plane bearing (7A) pushes the rotor (6) to move axially on the main shaft (4).
2. A bearing enclosed attrition mill according to claim 1, wherein; The bearing body (3) is provided with a second oil seal (3A), the bracket (1) is provided with a third oil seal (1A), and a material leakage gap (9) is arranged between the third oil seal (1A) and the second oil seal (3A); during operation, the second oil seal (3A) can effectively prevent the material from entering the bearing cavity and also prevent the lubricant contaminants in the bearing cavity from contaminating the material.