CN202804954U - Bearing automatic adjusting mechanism - Google Patents
Bearing automatic adjusting mechanism Download PDFInfo
- Publication number
- CN202804954U CN202804954U CN 201220391124 CN201220391124U CN202804954U CN 202804954 U CN202804954 U CN 202804954U CN 201220391124 CN201220391124 CN 201220391124 CN 201220391124 U CN201220391124 U CN 201220391124U CN 202804954 U CN202804954 U CN 202804954U
- Authority
- CN
- China
- Prior art keywords
- bearing
- grinding wheel
- wheel spindle
- main shaft
- round nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model relates to the field of machine tools, in particular to a bearing automatic adjusting mechanism. The bearing automatic adjusting mechanism comprises a grinding wheel spindle, a spindle sleeve, a butterfly-shaped spring, a bearing, and a supporting part, wherein the grinding wheel spindle is arranged inside the spindle shaft, and the butterfly-shaped spring, the bearing, and the supporting part are successively arranged on the grinding wheel spindle. By adoption of the scheme, the purpose of automatically adjusting magnitude of interference of the bearing is achieved.
Description
Technical field
The utility model relates to machine tool field, refers in particular to a kind of bearing automatic adjusting mechanism.
Background technology
In the traditional vertical grinder main axis transmission system of coiling machine, after lathe uses a period of time, because wearing and tearing or when causing the bearing magnitude of interference not satisfy lathe service precision etc. requiring because of vibrations own, must manually be adjusted by the senior skilled worker, not only bother, and this technical staff be also fewer, therefore, the inventor makes further research this, develops a kind of bearing automatic adjusting mechanism, and this case produces thus.
The utility model content
The purpose of this utility model is to provide a kind of bearing automatic adjusting mechanism, can make bearing automatically regulate the magnitude of interference.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of bearing automatic adjusting mechanism comprises grinding wheel spindle, main shaft sleeve, butterfly spring, bearing and support member; Described grinding wheel spindle is arranged in the main shaft sleeve, butterfly spring, and bearing and support member set gradually at grinding wheel spindle.
Further, described bearing comprises taper roll bearing, and described support member comprises round nut A, floor clip A, back-up ring; Described round nut A is fixedly installed on the grinding wheel spindle, and the inner ring of taper roll bearing is linked on the grinding wheel spindle, and the outer ring of taper roll bearing then is close to the inwall of main shaft sleeve, and floor clip A is between the inner ring of round nut A and taper roll bearing; Back-up ring is fixed on the main shaft sleeve, and does not contact with grinding wheel spindle, and butterfly spring A is then between back-up ring and taper roll bearing.
Further, described bearing also comprises Biserial cylindrical roller bearing, and described support member also comprises round nut B, floor clip B, tensioning tapered sleeve; Round nut B is fixedly installed on the grinding wheel spindle, be floor clip B between round nut B and the butterfly spring B, the opposite side of butterfly spring B is the tensioning tapered sleeve, the tensioning tapered sleeve is between the inner ring and grinding wheel spindle of Biserial cylindrical roller bearing, and the outer ring of Biserial cylindrical roller bearing then is close on the inwall of main shaft sleeve.
Further, described bearing also comprises angular contact bearing, and the inner ring of angular contact bearing is linked on the grinding wheel spindle and the outer ring is close on the inwall of main shaft sleeve, is in grinding wheel spindle foremost.
After adopting such scheme, the utility model compared with prior art has the following advantages:
1. with the magnitude of interference of compressed butterfly spring self-aligning bearing;
2. the design of three bearings of grinding wheel spindle has realized grinding wheel spindle three fulcrum support structures, has improved rigidity and the critical speed of grinding wheel spindle.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Label declaration
Grinding wheel spindle 1, main shaft sleeve 2, taper roll bearing 3,
Angular contact bearing 4, Biserial cylindrical roller bearing 5, tensioning tapered sleeve 6,
Round nut A11, floor clip A12, butterfly spring A13,
Back-up ring 14, round nut B15, floor clip B16, butterfly spring B17.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
As shown in Figure 1, a kind of bearing automatic adjusting mechanism that the utility model discloses comprises grinding wheel spindle 1, main shaft sleeve 2, grinding wheel spindle 1 is arranged in the main shaft sleeve 2, and the tail end of grinding wheel spindle 1 is disposed with round nut A11, floor clip A12, taper roll bearing 3, butterfly spring A13, back-up ring 14; Grinding wheel spindle 1 front end is disposed with round nut B15, floor clip B16, and butterfly spring B17, tensioning tapered sleeve 6, angular contact bearing 4 wherein also is provided with Biserial cylindrical roller bearing 5 on the tensioning tapered sleeve 6.
Wherein round nut A11 is fixedly installed on the grinding wheel spindle 1, the inner ring of taper roll bearing 3 is linked on the grinding wheel spindle 1, the outer ring of taper roll bearing 3 then is close to the inwall of main shaft sleeve 2, and floor clip A12 is between the inner ring of round nut A11 and taper roll bearing 3; Back-up ring 14 is fixed on the main shaft sleeve 2, and does not contact with grinding wheel spindle 1, and butterfly spring A13 is then between back-up ring 14 and taper roll bearing 3.
Round nut B15 is fixedly installed on the grinding wheel spindle 1, be floor clip B16 between round nut B15 and the butterfly spring B17, the opposite side of butterfly spring B17 is tensioning tapered sleeve 6, tensioning tapered sleeve 6 is between the inner ring and grinding wheel spindle 1 of Biserial cylindrical roller bearing 5, and the outer ring of Biserial cylindrical roller bearing 5 then is close on the inwall of main shaft sleeve 2; The inner ring of angular contact bearing 4 is linked on the grinding wheel spindle 1 and the outer ring is close on the inwall of main shaft sleeve 2, is in grinding wheel spindle 1 foremost.
Specific works principle of the present utility model is:
At grinding wheel spindle 1 tail end, be provided with the butterfly spring A13 under the compressive state between back-up ring 14 and the taper roll bearing 3, and back-up ring 14 is fixedly installed on the main shaft sleeve 2, so butterfly spring A13 certainly will form a thrust to taper roll bearing 3, and the support force of the round nut A11 that the another side of taper roll bearing 3 is fixedly installed and floor clip A12, so when taper roll bearing 3 and angular contact bearing 4 have the trace wearing and tearing, under the thrust of butterfly spring A13, taper roll bearing 3 can recover the magnitude of interference; And round nut A11 is fixed on the grinding wheel spindle 1, so when taper roll bearing 3 is subject to the thrust of butterfly spring A13, round nut A11 also is subject to a thrust, this thrust can drive grinding wheel spindle 1 and do corresponding motion, thereby so that be fastened on angular contact bearing 4 on the grinding wheel spindle 1 to the motion of the direction of Biserial cylindrical roller bearing 5, so the magnitude of interference of angular contact bearing 4 also can be adjusted under the effect of butterfly spring A13.
In like manner, at grinding wheel spindle 1 front end, butterfly spring B17 is under the support of round nut B15 and floor clip B16, tensioning tapered sleeve 6 there is a thrust, and the contact-making surface of tensioning tapered sleeve 6 and Biserial cylindrical roller bearing 5 tilts, tensioning tapered sleeve 6 can promote Biserial cylindrical roller bearing 5, and Biserial cylindrical roller bearing 5 can obtain the support of angular contact bearing 4, so the magnitude of interference of Biserial cylindrical roller bearing 5 can be adjusted.
By said method, realized with the magnitude of interference of butterfly spring because of the bearing wear self-aligning bearing; And the design of 1 three bearings of grinding wheel spindle has realized grinding wheel spindle 1 three fulcrum support structures, has improved the performances such as the rigidity of grinding wheel spindle 1 and critical speed.
Above-mentioned only is specific embodiment of the utility model, but design concept of the present utility model is not limited to this, allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (4)
1. a bearing automatic adjusting mechanism comprises grinding wheel spindle, and main shaft sleeve is characterized in that: also comprise butterfly spring, bearing and support member; Described grinding wheel spindle is arranged in the main shaft sleeve, butterfly spring, and bearing and support member set gradually at grinding wheel spindle.
2. a kind of bearing automatic adjusting mechanism according to claim 1, it is characterized in that: described bearing comprises taper roll bearing, described support member comprises round nut A, floor clip A, back-up ring; Described round nut A is fixedly installed on the grinding wheel spindle, and the inner ring of taper roll bearing is linked on the grinding wheel spindle, and the outer ring of taper roll bearing then is close to the inwall of main shaft sleeve, and floor clip A is between the inner ring of round nut A and taper roll bearing; Back-up ring is fixed on the main shaft sleeve, and does not contact with grinding wheel spindle, and butterfly spring A is then between back-up ring and taper roll bearing.
3. a kind of bearing automatic adjusting mechanism according to claim 2, it is characterized in that: described bearing also comprises Biserial cylindrical roller bearing, described support member also comprises round nut B, floor clip B, tensioning tapered sleeve; Round nut B is fixedly installed on the grinding wheel spindle, be floor clip B between round nut B and the butterfly spring B, the opposite side of butterfly spring B is the tensioning tapered sleeve, the tensioning tapered sleeve is between the inner ring and grinding wheel spindle of Biserial cylindrical roller bearing, and the outer ring of Biserial cylindrical roller bearing then is close on the inwall of main shaft sleeve.
4. a kind of bearing automatic adjusting mechanism according to claim 3, it is characterized in that: described bearing also comprises angular contact bearing, the inner ring of angular contact bearing is linked on the grinding wheel spindle and the outer ring is close on the inwall of main shaft sleeve, is in grinding wheel spindle foremost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391124 CN202804954U (en) | 2012-08-09 | 2012-08-09 | Bearing automatic adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391124 CN202804954U (en) | 2012-08-09 | 2012-08-09 | Bearing automatic adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202804954U true CN202804954U (en) | 2013-03-20 |
Family
ID=47863897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220391124 Expired - Fee Related CN202804954U (en) | 2012-08-09 | 2012-08-09 | Bearing automatic adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202804954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785171A (en) * | 2012-08-09 | 2012-11-21 | 绍兴市家度弹簧机械有限公司 | Automatic bearing adjusting mechanism |
-
2012
- 2012-08-09 CN CN 201220391124 patent/CN202804954U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785171A (en) * | 2012-08-09 | 2012-11-21 | 绍兴市家度弹簧机械有限公司 | Automatic bearing adjusting mechanism |
| CN102785171B (en) * | 2012-08-09 | 2015-03-11 | 俞家林 | Automatic bearing adjusting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20150809 |
|
| EXPY | Termination of patent right or utility model |