Ceramic grinding disc with asymmetric structure

Abstract

The utility model discloses a ceramic grinding disc with an asymmetric structure, which comprises an upper grinding disc and a lower grinding disc, the upper grinding disc comprises a middle feeding area, an upper protruding fixing area and an inner grinding area, the grinding area comprises seven grinding units distributed in the radial direction, each grinding unit comprises grinding teeth distributed in a linear mode, and the grinding teeth are arranged in the middle of the upper grinding disc. The section of each grinding tooth is rectangular, the lower grinding disc area comprises a middle rotating shaft mounting area and an inner grinding area, the grinding area comprises seven grinding units distributed in the radial direction, each grinding unit comprises grinding teeth distributed in the linear direction, and the section of each grinding tooth is rectangular; according to the ceramic grinding disc of the asymmetric structure, stress concentration of the ceramic grinding disc in the grinding process can be greatly reduced, and therefore the cracking risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of ultrafine grinding machines, and particularly to a ceramic grinding disc with an asymmetric structure. Background Technology

[0002] Ultrafine grinding mills are a common type of grinding equipment used in the powder and machining industries for grinding, dispersing, and crushing solid particles, colloids, and other materials. Its working principle is mainly based on the centrifugal force generated by high-speed rotation to throw the material toward the edge of the grinding disc. Under the squeezing action of the grinding teeth of the upper and lower grinding discs, the material is ground into fine particles and comes out from the gap between the upper and lower grinding discs.

[0003] When grinding materials are sensitive to impurities, ceramic grinding discs have advantages such as wear resistance, chemical corrosion resistance, and less introduction of impurities. However, the grinding teeth of ceramic grinding discs on the market are all symmetrical structures. When rotating at high speed, the combined force of centrifugal force and Coriolis force can cause the grinding teeth to crack symmetrically, which poses a certain risk. Utility Model Content

[0004] This utility model mainly provides a ceramic grinding disc with an asymmetric structure, which can effectively solve the technical problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an asymmetrical ceramic grinding disc, including an upper grinding disc and a lower grinding disc, wherein the upper grinding disc has a feeding area in the middle, a fixed area with a protruding part in the upper part, and a grinding area that slopes from the outside to the inside; the lower grinding disc includes a rotating shaft mounting area in the middle and a grinding area that slopes from the outside to the inside.

[0006] Furthermore, the fixed area in the upper grinding disc is a protruding disc-shaped structure that cooperates with the grinding machine to fix the upper grinding disc. There is a floating groove at its corner, which facilitates assembly and avoids damage to the grinding disc during the assembly process.

[0007] Furthermore, the grinding area in the upper grinding disc includes seven grinding units that are regularly distributed radially.

[0008] Furthermore, the grinding unit in the upper grinding disc grinding area includes grinding teeth. The direction of the grinding teeth does not point to the center of the circle, but is at an angle of 5 to 10 degrees with the radius. The cross-section of the grinding teeth is rectangular, and the grinding teeth are rounded to effectively reduce wear at the corners.

[0009] Furthermore, the slope of the tip line of the grinding tooth is between 0.39 and 0.44.

[0010] Furthermore, the grinding area of ​​the lower grinding disc includes seven grinding units arranged radially.

[0011] Furthermore, the grinding unit in the lower grinding disc grinding area includes grinding teeth. The direction of the grinding teeth does not point to the center of the circle, but is at an angle of 5 to 10 degrees with the radius. The cross-section of the grinding teeth is rectangular, and the grinding teeth are rounded to effectively reduce wear at the corners.

[0012] Furthermore, the slope of the tip line of the grinding tooth is between 0.39 and 0.44.

[0013] The beneficial effects of this utility model are as follows: by dividing the grinding area of ​​the upper and lower grinding discs into 7 independent and regularly distributed grinding units, the grinding teeth of each independent grinding unit do not point to the center and are asymmetrical with the grinding unit on the opposite side, which can greatly reduce the stress concentration of the ceramic grinding disc during the grinding process, thereby reducing the risk of cracking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0015] Figure 2 This is a cross-sectional view of the present invention.

[0016] Figure 3 This is a top view of the upper grinding disc in this utility model.

[0017] Figure 4 This is a top view of the lower grinding disc in this utility model.

[0018] Figures 1 to 4 The markings are as follows: 1. Upper grinding disc; 2. Lower grinding disc; 11. Fixed area; 12. Feeding area; 13. Upper grinding disc grinding area; 21. Rotary shaft mounting area; 22. Lower grinding disc grinding area. Detailed Implementation

[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 3 As shown, an asymmetrical ceramic grinding disc includes an upper grinding disc 1 and a lower grinding disc 2. The upper grinding disc 1 has a feeding area 11 in the middle, a fixed area 12 with a protruding part in the upper part, and a grinding area 13 that slopes from the outside to the inside. The lower grinding disc 2 includes a rotating shaft mounting area 21 in the middle and a grinding area 22 that slopes from the outside to the inside.

[0021] The fixed area 12 in the upper grinding disc 1 is a protruding disc-shaped structure that cooperates with the grinding machine to fix the upper grinding disc. It has a floating groove at its corner to facilitate assembly and prevent damage to the grinding disc during assembly. The grinding area 13 includes seven grinding units distributed radially. The grinding teeth do not point towards the center, but are at an angle of 5 to 10 degrees to the radius. The cross-section of the grinding teeth is rectangular, and the corners between the grinding teeth are rounded to effectively reduce wear at the corners. The slope of the tooth tip line is between 0.39 and 0.44.

[0022] The grinding area 12 of the lower grinding disc 2 includes seven grinding units that are regularly distributed radially. The direction of the grinding teeth does not point to the center of the circle, but is at an angle of 5 to 10 degrees with the radius. The cross-section of the grinding teeth is rectangular, and the corners between the grinding teeth are rounded to effectively reduce wear at the corners. The slope of the top line of the grinding teeth is between 0.39 and 0.44.

[0023] During the grinding process, the asymmetrical structure of the grinding teeth of the seven grinding units greatly reduces the stress concentration of the ceramic grinding disc, thereby reducing the risk of cracking.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An asymmetric ceramic grinding disc, comprising an upper grinding disc (1) and a lower grinding disc (2), characterized in that, The upper grinding disc (1) has a feeding area (11) in the middle, a fixed area (12) with a protruding part on the upper part, and a grinding area (13) that slopes from the outside to the inside; the lower grinding disc includes a rotating shaft mounting area (21) in the middle and a grinding area (22) that slopes from the outside to the inside.

2. The ceramic abrasive disc of claim 1, wherein, The fixed area (12) in the upper grinding disc (1) is characterized by a protruding disc-shaped structure that cooperates with the grinding machine to fix the upper grinding disc; there is a floating groove at its corner.

3. The ceramic abrasive disc of claim 1, wherein, The grinding area of ​​the upper grinding disc (1) is characterized by seven grinding units that are regularly distributed along the radial direction.

4. The ceramic abrasive disc of claim 3, wherein, The grinding unit is characterized by grinding teeth distributed linearly, the direction of the grinding teeth being between 5 and 10 degrees from the radius, the cross-section of the grinding teeth being rectangular, and the grinding teeth having rounded corners.

5. The ceramic abrasive disc of claim 4, wherein, The slope of the tip line of the grinding tooth is between 0.39 and 0.

44.

6. The ceramic abrasive disc of claim 1, wherein, The grinding area of ​​the lower grinding disc (2) is characterized by seven grinding units that are regularly distributed along the radial direction.

7. The asymmetric ceramic grinding disc according to claim 6, characterized in that, The grinding unit is characterized by grinding teeth distributed linearly, the direction of the grinding teeth being between 5 and 10 degrees from the radius, the cross-section of the grinding teeth being rectangular, and the grinding teeth having rounded corners.

8. The ceramic abrasive disc of claim 7, wherein, The slope of the tip line of the grinding tooth is between 0.29 and 0.34.

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