CN2786355Y - Elastic spacer bush - Google Patents
Elastic spacer bush Download PDFInfo
- Publication number
- CN2786355Y CN2786355Y CNU2005200706942U CN200520070694U CN2786355Y CN 2786355 Y CN2786355 Y CN 2786355Y CN U2005200706942 U CNU2005200706942 U CN U2005200706942U CN 200520070694 U CN200520070694 U CN 200520070694U CN 2786355 Y CN2786355 Y CN 2786355Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- spacing sleeve
- utility
- model
- prevented
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/06—Ball or roller bearings
- F16C25/08—Ball or roller bearings self-adjusting
- F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
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- Support Of The Bearing (AREA)
Abstract
An elastic spacing sleeve belongs to the technical field of a washer and solves the technical problem that the elastic spacing sleeve which can automatically adjust the pre-tightening force of a bearing within a definite range. The spacing sleeve forms a shape of a cylindrical tube, a radial bulge (2) is arranged on the cylindrical tube (1), and the bulgy surface (3) of the bulge is cambered. The spacing sleeve has elasticity and plasticity, so that the pre-tightening force of a bearing can be automatically adjusted within a definite range and can be adjusted to the optimum state, so that the bearing is prevented from tightly assembling, or axial float caused by the fact that the bearing is looser is prevented. The assembly noise of a main reducer is reduced, and assembly quality of the main reducer is enhanced, and simultaneously, the utility model has elasticity, nuts of a main tine can be prevented from loosening, the assembling speed of the utility model is fast and efficiency is high. The relevant tolerance of an assembling dimension chain can be loosened, production cost of other parts can be reduced and the utility model is an ideal product for replacing a rigid spacing sleeve.
Description
Technical field: the utility model relates to a kind of automobile axle main reducing gear main pinion that is used for and holds the spacer of pretightening force, particularly a kind of collapsible dist collar.
Background technique: well-known, automobile axle main reducing gear two tapered roller bearings all are that pairing is used, be subjected to the centrifugal moment effect in order to eliminate bearing rolling element in operation process, cause between rolling element and the raceway and produce slide relative, cause axle, seat ring to separate tendency, guarantee the bearing proper functioning, must apply certain axial pre tightening force.At present, the domestic way of taking mainly is to load onto the rigidity spacer between two bearings.But, use the rigidity spacer, pretightening force is crossed conference and is reduced transmission efficiency, causes bearing to be heated, and influences bearing life, reduces the back axle performance; If pretightening force is too small, then can cause main pinion to hold axial float, influence is main is meshed by tooth, even beats tooth.And in assembly process, often need try to add repeatedly pad repeatedly and just can adjust to suitable pretightening force, cause manufacturing efficiency low, labor intensity is big.
Summary of the invention: technical problem to be solved in the utility model is: a kind of improved, the collapsible dist collar that can adjust bearing pre-fastening within the specific limits voluntarily is provided.Its technological scheme is: a kind of collapsible dist collar is characterized in that: described spacer is a cylindrical tube, and radially a projection is arranged on the cylindrical tube, and the convex surface of projection is an arcuation.Its technique effect is: owing to be provided with the projection of arcuation on the spacer of cylindrical tube, make it both have elasticity, has plasticity again, therefore, this spacer can be adjusted the pretightening force of bearing voluntarily in certain scope, and bearing pre-fastening can be adjusted to the optimum state, avoid bearing assembling tension, or bearing is crossed pine generation axial float, reduction main gearbox assembly noise, raising main gearbox assembly quality; Simultaneously, because it has elasticity, so can prevent that main teeth nut is loosening; And its assembling speed is fast, efficient is high, and the relative tolerance of dimensional chain for assembly can loosen, and can also reduce the cost of production of other part; It is the ideal product that substitutes the rigidity spacer.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is another kind of structural representation.
Embodiment:
As shown in Figure 1, spacer is a cylindrical tube, and radially a projection 2 is arranged on the cylindrical tube 1, and the convex surface 3 of projection is an arcuation.This collapsible dist collar can use on isometrical axle.Fig. 2 is the collapsible dist collar that uses on not isometrical axle, the two ends diameter difference of its cylindrical tube 1.
Claims (1)
1, a kind of collapsible dist collar is characterized in that: described spacer is a cylindrical tube, and radially a projection (2) is arranged on the cylindrical tube (1), and the convex surface (3) of projection is an arcuation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200706942U CN2786355Y (en) | 2005-04-06 | 2005-04-06 | Elastic spacer bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200706942U CN2786355Y (en) | 2005-04-06 | 2005-04-06 | Elastic spacer bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786355Y true CN2786355Y (en) | 2006-06-07 |
Family
ID=36774929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200706942U Expired - Fee Related CN2786355Y (en) | 2005-04-06 | 2005-04-06 | Elastic spacer bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786355Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862955A (en) * | 2010-04-29 | 2010-10-20 | 中国科学院上海技术物理研究所 | Device and method for adjusting internal space ring and external space ring of a pair of face-to-face mounted bearings with angle contact |
| WO2016065815A1 (en) * | 2014-10-28 | 2016-05-06 | 山东浩信机械有限公司 | Spacer bush and hub unit |
| CN106704376A (en) * | 2017-02-23 | 2017-05-24 | 中国航发沈阳发动机研究所 | Self-adaptive bearing bush and mounting structure |
| CN107023645A (en) * | 2017-04-27 | 2017-08-08 | 奇瑞商用车（安徽）有限公司 | A kind of spacer adjusted for bearing pre-fastening and the main gearbox assembly with it |
| CN109505872A (en) * | 2017-09-14 | 2019-03-22 | 中国航发商用航空发动机有限责任公司 | Bearing pre-tightening device |
| CN109595328A (en) * | 2019-01-30 | 2019-04-09 | 汽解放汽车有限公司 | It is a kind of for adjusting the waveform spacer of bearing pre-fastening |
| CN109780179A (en) * | 2019-01-08 | 2019-05-21 | 一汽解放汽车有限公司 | A kind of commercial vehicle main cone bearing pre-tightening structure and its Method of Adjustment |
-
2005
- 2005-04-06 CN CNU2005200706942U patent/CN2786355Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862955A (en) * | 2010-04-29 | 2010-10-20 | 中国科学院上海技术物理研究所 | Device and method for adjusting internal space ring and external space ring of a pair of face-to-face mounted bearings with angle contact |
| CN101862955B (en) * | 2010-04-29 | 2013-01-09 | 中国科学院上海技术物理研究所 | Device and method for adjusting internal space ring and external space ring of a pair of face-to-face mounted bearings with angle contact |
| WO2016065815A1 (en) * | 2014-10-28 | 2016-05-06 | 山东浩信机械有限公司 | Spacer bush and hub unit |
| CN106704376A (en) * | 2017-02-23 | 2017-05-24 | 中国航发沈阳发动机研究所 | Self-adaptive bearing bush and mounting structure |
| CN106704376B (en) * | 2017-02-23 | 2019-06-28 | 中国航发沈阳发动机研究所 | A kind of adaptive bearing insert and mounting structure |
| CN107023645A (en) * | 2017-04-27 | 2017-08-08 | 奇瑞商用车（安徽）有限公司 | A kind of spacer adjusted for bearing pre-fastening and the main gearbox assembly with it |
| CN109505872A (en) * | 2017-09-14 | 2019-03-22 | 中国航发商用航空发动机有限责任公司 | Bearing pre-tightening device |
| CN109780179A (en) * | 2019-01-08 | 2019-05-21 | 一汽解放汽车有限公司 | A kind of commercial vehicle main cone bearing pre-tightening structure and its Method of Adjustment |
| CN109595328A (en) * | 2019-01-30 | 2019-04-09 | 汽解放汽车有限公司 | It is a kind of for adjusting the waveform spacer of bearing pre-fastening |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |