CN210281970U - Centerless grinding wheel - Google Patents
Centerless grinding wheel Download PDFInfo
- Publication number
- CN210281970U CN210281970U CN201820043535.0U CN201820043535U CN210281970U CN 210281970 U CN210281970 U CN 210281970U CN 201820043535 U CN201820043535 U CN 201820043535U CN 210281970 U CN210281970 U CN 210281970U
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- grinding wheel
- grinding
- heat dissipation
- wheel body
- dissipation groove
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Abstract
The utility model discloses a centerless grinding wheel belongs to grinding apparatus technical field. The centerless grinding wheel comprises a grinding wheel body, wherein a shaft hole is formed in the center of the grinding wheel body, a heat dissipation groove is formed in the shaft hole, and the grinding wheel body consists of a grinding layer on an outer ring and a supporting layer on an inner ring. The utility model discloses can be used to high-speed grinding.
Description
Technical Field
The utility model relates to a centerless grinding wheel belongs to grinding apparatus technical field.
Background
The grinding wheel is the most important grinding tool in grinding processing, and is a bonded grinding tool which is formed by bonding ordinary grinding materials into a certain shape by a bonding agent and has certain strength. The grinding wheel is the one with the largest use amount and the widest use range in the grinding tool, rotates at high speed when in use, and can perform coarse grinding, semi-fine grinding, slotting, cutting and the like on the excircle, the inner circle, the plane, various molded surfaces and the like of a metal or nonmetal workpiece. In the grinding process, as the grinding speed is very high, the unit grinding force is large, most of the work consumed by metal deformation and friction is converted into grinding heat, the high-speed grinding can not only improve the processing efficiency, but also improve the quality of the processed surface, but the result of the high-speed grinding is that a large amount of grinding heat is generated and cannot be dissipated in time, and the grinding wheel is cracked seriously.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a centerless emery wheel has with low costs, the fast advantage of heat dissipation.
The centerless grinding wheel comprises a grinding wheel body, wherein a shaft hole is formed in the center of the grinding wheel body, a heat dissipation groove is formed in the shaft hole, and the grinding wheel body consists of a grinding layer of an outer ring and a supporting layer of an inner ring.
Further, the ratio of the outer diameter of the grinding layer to the outer diameter of the supporting layer is 9: 5-6.
Further, the ratio of the outer diameter of the grinding layer to the outer diameter of the supporting layer is 9: 5.7.
Further, the heat dissipation groove is rectangular.
Further, the heat dissipation groove is trapezoidal.
Further, the heat dissipation groove is arched.
Further, the ratio of the opening length of the heat dissipation groove to the height of the grinding wheel body is 5-6: 10.
Further, the ratio of the depth of the heat dissipation groove to the outer diameter of the grinding wheel body is 1: 150-180.
The grinding layer is made of a primary product abrasive, the primary product abrasive standard is referred to national standard and is respectively tested by GB/T2481-1998 abrasive grain size composition determination method, JB/T6570-1993 abrasive magnetic substance content determination method, JB/T7984.2-1995 common abrasive bulk density determination method, JB/T7984.3-1995 common abrasive grain density determination method and the like.
The support layer can be made of a lower grade, less expensive abrasive.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses be equipped with the radiating groove on the shaft hole, the area of contact of shaft hole and axle that has significantly reduced makes axle and shaft hole cooperation more accurate, and the radiating groove helps the thermal timely effluvium of grinding in-process grinding. The grinding wheel body consists of a grinding layer of the outer ring and a supporting layer of the inner ring. The grinding layer is made of a first-grade product grinding material with higher price, and the supporting layer is made of a grinding material with lower price, so that the production cost of the centerless grinding wheel is facilitated, and the grinding performance of the grinding wheel is not influenced.
Drawings
Fig. 1 is a schematic structural view of the centerless grinding wheel of the present invention;
FIG. 2 is a cross-sectional view of the centerless grinding wheel of example 1;
FIG. 3 is a cross-sectional view of the centerless grinding wheel of example 2;
FIG. 4 is a cross-sectional view of the centerless grinding wheel of example 3;
wherein, 1, the grinding wheel body; 2. a shaft hole; 3. a heat sink; 4. a support layer; 5. and grinding the layer.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
Example 1
The centerless grinding wheel comprises a grinding wheel body 1, wherein a shaft hole 2 is formed in the center of the grinding wheel body 1, a heat dissipation groove 3 is formed in the shaft hole 2, and the grinding wheel body 1 is composed of a grinding layer 5 of an outer ring and a supporting layer 4 of an inner ring.
Example 2
The centerless grinding wheel comprises a grinding wheel body 1, wherein a shaft hole 2 is formed in the center of the grinding wheel body 1, a heat dissipation groove 3 is formed in the shaft hole 2, and the grinding wheel body 1 consists of a grinding layer 5 of an outer ring and a supporting layer 4 of an inner ring; the ratio of the outer diameter of the grinding layer 5 to the outer diameter of the supporting layer 4 is 9:5.7, the heat dissipation groove 3 is rectangular, the ratio of the opening length of the heat dissipation groove 3 to the height of the grinding wheel body 1 is 5:10, and the ratio of the depth of the heat dissipation groove 3 to the outer diameter of the grinding wheel body 1 is 1: 180.
Example 3
The centerless grinding wheel comprises a grinding wheel body 1, wherein a shaft hole 2 is formed in the center of the grinding wheel body 1, a heat dissipation groove 3 is formed in the shaft hole 2, and the grinding wheel body 1 consists of a grinding layer 5 of an outer ring and a supporting layer 4 of an inner ring; the ratio of the outer diameter of the grinding layer 5 to the outer diameter of the supporting layer 4 is 9:6, the heat dissipation groove 3 is trapezoidal, the ratio of the opening length of the heat dissipation groove 3 to the height of the grinding wheel body 1 is 5.6:10, and the ratio of the depth of the heat dissipation groove 3 to the outer diameter of the grinding wheel body 1 is 1: 160.
Example 4
The centerless grinding wheel comprises a grinding wheel body 1, wherein a shaft hole 2 is formed in the center of the grinding wheel body 1, a heat dissipation groove 3 is formed in the shaft hole 2, and the grinding wheel body 1 consists of a grinding layer 5 of an outer ring and a supporting layer 4 of an inner ring; the ratio of the outer diameter of the grinding layer 5 to the outer diameter of the supporting layer 4 is 9:5, the heat dissipation groove 3 is arc-shaped, the ratio of the opening length of the heat dissipation groove 3 to the height of the grinding wheel body 1 is 6:10, and the ratio of the depth of the heat dissipation groove 3 to the outer diameter of the grinding wheel body 1 is 1: 150.
Claims (8)
1. The utility model provides a centerless grinding wheel, includes emery wheel body (1), and emery wheel body (1) center is equipped with shaft hole (2), its characterized in that: the grinding wheel is characterized in that a heat dissipation groove (3) is formed in the shaft hole (2), and the grinding wheel body (1) is composed of a grinding layer (5) of an outer ring and a supporting layer (4) of an inner ring.
2. The centerless grinding wheel of claim 1, wherein: the ratio of the outer diameter of the grinding layer (5) to the outer diameter of the supporting layer (4) is 9: 5-6.
3. The centerless grinding wheel of claim 2, wherein: the ratio of the outer diameter of the grinding layer (5) to the outer diameter of the supporting layer (4) is 9: 5.7.
4. The centerless grinding wheel of claim 3, wherein: the heat dissipation groove (3) is rectangular.
5. The centerless grinding wheel of claim 3, wherein: the heat dissipation groove (3) is trapezoidal.
6. The centerless grinding wheel of claim 3, wherein: the heat dissipation groove (3) is arc-shaped.
7. A centerless grinding wheel according to any of claims 4 to 6, wherein: the ratio of the opening length of the heat dissipation groove (3) to the height of the grinding wheel body (1) is 5-6: 10.
8. The centerless grinding wheel of claim 7, wherein: the ratio of the depth of the heat dissipation groove (3) to the outer diameter of the grinding wheel body (1) is 1: 150-180.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820043535.0U CN210281970U (en) | 2018-01-10 | 2018-01-10 | Centerless grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820043535.0U CN210281970U (en) | 2018-01-10 | 2018-01-10 | Centerless grinding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210281970U true CN210281970U (en) | 2020-04-10 |
Family
ID=70058638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820043535.0U Active CN210281970U (en) | 2018-01-10 | 2018-01-10 | Centerless grinding wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210281970U (en) |
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2018
- 2018-01-10 CN CN201820043535.0U patent/CN210281970U/en active Active
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