CN202746417U - Combined type bearing gap fine-adjusting nut with function of run-out error elimination - Google Patents
Combined type bearing gap fine-adjusting nut with function of run-out error elimination Download PDFInfo
- Publication number
- CN202746417U CN202746417U CN 201220353995 CN201220353995U CN202746417U CN 202746417 U CN202746417 U CN 202746417U CN 201220353995 CN201220353995 CN 201220353995 CN 201220353995 U CN201220353995 U CN 201220353995U CN 202746417 U CN202746417 U CN 202746417U
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- CN
- China
- Prior art keywords
- nut
- bearing gap
- combined type
- type bearing
- adjusting nut
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- 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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- Mounting Of Bearings Or Others (AREA)
- Support Of The Bearing (AREA)
Abstract
The utility model discloses a combined type bearing gap fine-adjusting nut with a function of run-out error elimination. The combined type bearing gap fine-adjusting nut is installed on a shaft end thread and is used for compressing a bearing; a shaft is in threaded connection with the combined type bearing gap fine-adjusting nut; the combined type bearing gap fine-adjusting nut at least comprises a main nut (4), a compression nut (3), a countersunk screw (7) and a plurality of uniformly distributed fastening screws (5); the combined type bearing gap fine-adjusting nut is installed on the shaft through the thread; the main nut (4) and the compression nut (3) are connected together through the countersunk screw (7); stairs are formed on the end surface of the compression nut (3); the stairs are contacted with a bearing positioning ring; and the bearing positioning ring is tightly compressed. When the nut is assembled, a bearing gap is finely adjusted by finely adjusting the screw-in depths of the fastening screws (5) which are uniformly distributed, so that the run-out error of the shaft is eliminated, the equipment operation precision is effectively ensured, and the combined type bearing gap fine-adjusting nut is simple in structure, convenient to operate, low in cost and high in precision.
Description
Technical field
The utility model relates to a kind of bearing play accurate adjustment nut, specially refers to a kind of combined bearing gap accurate adjustment nut of eliminating runout error.
Background technique
At present, the normal operation round nut is adjusted in the gap of domestic machinery Middle shaft assembly positioning bearing, when occurring the bearing pre-tightened gap in the assembly process when inhomogeneous, can cause the straightness error of shaft assembly axis and the coaxiality error of shaft assembly and bearing support, cause beating of axle after the assembling, affect the running accuracy of equipment, the round nut that tradition is used can only wholely be adjusted axial position with the compression bearing, and is difficult to trim the runout error of axle.
Summary of the invention
In order to solve the problems of the technologies described above, it is a kind of simple in structure that the utility model provides, the combined bearing gap accurate adjustment nut of easy to operate elimination runout error, it mainly comprises mother nut, gland nut, countersunk head screw, circumferential equally distributed some Cock screws.
For reaching above purpose, the utility model has adopted following technological scheme: a kind of combined bearing gap accurate adjustment nut of eliminating runout error is installed on the axle head screw thread, compress bearing locating ring, axle and this combined bearing gap accurate adjustment nut are threaded connection, mother nut and gland nut fit together by countersunk head screw, the outside end face of gland nut is provided with step, and mother nut is provided with equally distributed Cock screw.
The step of gland nut described in the utility model outside end face contacts with the positioning ring of bearing, the end face step of gland nut arranges according to the position of bearing locating ring, the end face step of gland nut just was located at side inner ring position, hole when bearing was the inner ring location, and the end face step just was located at the position, outer ring when bearing was the location, outer ring.
After combined bearing described in the utility model gap accurate adjustment nut compresses bearing locating ring, the screw-in depth of regulating respectively 4 equally distributed Cock screws is adjusted the working state of gland nut, thereby the runout error of axle is effectively eliminated in the gap of accurate adjustment bearing.
After adopting above technological scheme, the utlity model has simple in structure, easy and simple to handle, low cost and other advantages.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the utility model sectional arrangement drawing.
Fig. 2 is the utility model structural representation.
Fig. 3 is that the utility model is worked as the sectional view that bearing is inner ring when location gland nut.
Fig. 4 is that the utility model is worked as the sectional view that bearing is outer ring when location gland nut.
Fig. 5 is the left view of gland nut among Fig. 4 and Fig. 3.
Fig. 6 is the structural representation of the utility model mother nut.
Embodiment
According to shown in Figure 1, a kind of combined bearing gap accurate adjustment nut of eliminating runout error of the utility model, mainly comprise mother nut 4, gland nut 3, circumferential equally distributed 4 Cock screws 5,2 countersunk head screws 7, mother nut 4 and gland nut 3 fit together by 2 countersunk head screws 7, the outside end face of gland nut 3 is provided with step, mother nut 4 is provided with equally distributed 4 Cock screws 5, this combined bearing gap accurate adjustment nut is installed on the axle head screw thread, compress bearing locating ring, axle and this combined bearing gap accurate adjustment nut are threaded connection.
The step of gland nut 3 outside end faces described in the utility model contacts with bearing locating ring.
According to Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the utility model gland nut 3 end faces are provided with step, and the position of step arranges according to the position of bearing locating ring, can be also can be at the outer ring side position at the hole side position.
According to shown in Figure 6, the utility model mother nut 4 is provided with mounting hole and 2 auxiliary holes of the mounting hole of 2 countersunk head screws 7,4 Cock screws, be tightened onto on the axle head screw thread by the integral body of 2 auxiliary holes with the utility model combined bearing gap accurate adjustment nut of assembling, after compressing bearing 8 and 9, the screw-in depth of regulating respectively more circumferential equally distributed 4 Cock screws 5 is come the working state of accurate adjustment gland nut 3, with the gap of accurate adjustment bearing 8 and 9.
Claims (3)
1. combined bearing gap accurate adjustment nut of eliminating runout error, mainly comprise mother nut (4), gland nut (3), circumferential equally distributed some Cock screws (5), countersunk head screw (7), it is characterized in that this combined bearing gap accurate adjustment nut is installed on the axle head screw thread, compress bearing, axle and this combined bearing gap accurate adjustment nut are threaded connection, mother nut (4) and gland nut (3) fit together by countersunk head screw (7), the outside end face of gland nut (3) is provided with step, and mother nut (4) is provided with equally distributed Cock screw (5).
2. a kind of combined bearing gap accurate adjustment nut of eliminating runout error according to claim 1 is characterized in that the step surface in described gland nut (3) outside contacts with bearing locating ring.
3. a kind of combined bearing gap accurate adjustment nut of eliminating runout error according to claim 1 and 2 is characterized in that described gland nut (3) step surface is arranged near hole side position or outer ring side position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353995 CN202746417U (en) | 2012-07-20 | 2012-07-20 | Combined type bearing gap fine-adjusting nut with function of run-out error elimination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353995 CN202746417U (en) | 2012-07-20 | 2012-07-20 | Combined type bearing gap fine-adjusting nut with function of run-out error elimination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746417U true CN202746417U (en) | 2013-02-20 |
Family
ID=47705816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220353995 Expired - Fee Related CN202746417U (en) | 2012-07-20 | 2012-07-20 | Combined type bearing gap fine-adjusting nut with function of run-out error elimination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748398A (en) * | 2012-07-20 | 2012-10-24 | 曹泽洪 | Combined bearing clearance accurate adjustment nut for eliminating run-out errors |
-
2012
- 2012-07-20 CN CN 201220353995 patent/CN202746417U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748398A (en) * | 2012-07-20 | 2012-10-24 | 曹泽洪 | Combined bearing clearance accurate adjustment nut for eliminating run-out errors |
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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: 20130220 Termination date: 20150720 |
|
| EXPY | Termination of patent right or utility model |