CN204226432U - Bearing sleeve structure - Google Patents
Bearing sleeve structure Download PDFInfo
- Publication number
- CN204226432U CN204226432U CN201420596713.4U CN201420596713U CN204226432U CN 204226432 U CN204226432 U CN 204226432U CN 201420596713 U CN201420596713 U CN 201420596713U CN 204226432 U CN204226432 U CN 204226432U
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- CN
- China
- Prior art keywords
- bearing
- bearing sleeve
- annulus
- housing
- utility
- 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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- Support Of The Bearing (AREA)
- Mounting Of Bearings Or Others (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model relates to a kind of bearing sleeve structure, the shelves limit 1c extended internally comprising bearing cartridge 1 and be arranged on bearing cartridge 1 end, the two ends of bearing cartridge 1 are cylndrical surface and measure-alike annulus 1a inside and outside being, are provided with at least one cambered outwards annulus 1b between the 1a at described two ends.The utility model is because adopting evagination anchor ring resiliently deformable as compensation way, ensure that the centering ability of bearing and housing is better, and because do not need king-sized elastic conjunction stress, it is thinner that the part that housing coordinates with bearing sleeve can be done, thus reduce overall structure weight.
Description
Technical field
The utility model relates to a kind of bearing sleeve structure, can because of the gap of the reason generations such as thermal expansion between auto-compensation and housing.
Background technique
The bearing sleeve structure of bearing sleeve structure, especially rolling bearing is widely used among different fields, such as, in aeronautical engineering.Concrete, bearing sleeve is used to gear-box, in gas turbine, transmission shaft, main reducing gear, accessory drive system.Another important application is the structure such as automobile gearbox and motor.
Existing bearing sleeve structure is mainly divided into 2 kinds, as shown in Figure 1, bearing sleeve is a sleeve with mounting flange to a kind of structure, and excircle of sleeve cylinder coordinates with the mounting hole of housing, the inner cylindrical surface of sleeve coordinates with outer race, and lining is fixed on housing by screw bolt and nut.This complicated structure, the existence because of bolt, nut and lining flange arrangement causes structure weight comparatively large, and structure is compact not.As shown in Figure 2, bearing sleeve is the sleeve of the rib that extends to the inside to 2nd kind of structure, and its external cylindrical surface is connected with interference fit with shell inner hole, and bearing sleeve inner cylindrical surface is connected with bearing top circle cylinder by small―gap suture or transition fit.The lining of this structure adopts the steel manufacture that wear-resisting single line expansion coefficient is less usually, and the housing larger aluminum-magnesium alloy manufacture that is linear expansion coeffcient, when operating temperature raises, magnitude of interference between lining and housing can reduce even to disappear, and then cause lining centering function to be lost, even lining and housing produce and move and wear and tear.
Summary of the invention
The purpose of this utility model is to provide a kind of bearing sleeve structure, described bearing sleeve has compact structure, lightweight feature, and when temperature variation, do not reduce because the linear expansion coeffcient relation different from case material causes installing magnitude of interference or disappear, ensureing the reliability of bearing-transmission.
The technical solution of the utility model is, described bearing sleeve structure comprises bearing cartridge and is arranged on the rib extended internally on bearing cartridge end, the two ends of bearing cartridge are cylndrical surface and measure-alike annulus inside and outside being, are provided with at least one cambered outwards annulus between described two ends.Linear expansion coeffcient and the bearing of the material of described bearing sleeve are close.
The utility model has cambered outwards annulus at bearing sleeve vibrational power flow, and when mounted, have after in the endoporus of the housing of same diameter with lining two ends annulus when bearing sleeve loads, the annulus of evagination can be extruded generation resiliently deformable.When after temperature change, when producing radial fit gap trend between bearing sleeve and housing, bearing sleeve evagination annulus can reply convex shape under elastic reaction, thus offset the gap produced, bearing sleeve also can keep with bearing the relation that matches, thus ensures the centering requirement between bearing and housing.Compared with flanged (FLGD) bearing sleeve, the utility model structure is more simple, lightweight, ensures that bearing and housing ability of feeling relieved is good.Interference is relied on merely to ensure compared with the structure that lining and housing tighten together with the second, the utility model is because adopting evagination anchor ring resiliently deformable as compensation way, can auto-compensation because material is different and temperature change and the radial interference amount that causes changes, active force between bearing sleeve and bearing is more stable, the serviceability temperature excursion be suitable for is wide, ensure that the centering ability of bearing and housing is better, and because do not need king-sized elastic conjunction stress, it is thinner that the part that housing coordinates with bearing sleeve can be done, thus reduce overall structure weight.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the first prior art;
Fig. 2 is the structural drawing of the second prior art;
Fig. 3 is structural representation of the present utility model;
Fig. 4 is scheme of installation of the present utility model.
Embodiment
As shown in the figure, the rib 1c extended internally that described bearing sleeve structure comprises bearing cartridge 1 and is arranged on bearing cartridge 1 end, the two ends of bearing cartridge 1 are cylndrical surface and measure-alike annulus 1a inside and outside being, are provided with at least one cambered outwards annulus 1b between the 1a at described two ends.Linear expansion coeffcient and the bearing of the material of described bearing sleeve are close.
Claims (1)
1. a bearing sleeve structure, it is characterized in that, described bush structure comprises bearing cartridge (1) and is arranged on the rib (1c) extended internally on bearing cartridge (1) end, the two ends of bearing cartridge (1) are cylndrical surface and measure-alike annulus (1a) inside and outside being, are provided with at least one cambered outwards annulus (1b) between (1a) at described two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420596713.4U CN204226432U (en) | 2014-10-15 | 2014-10-15 | Bearing sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420596713.4U CN204226432U (en) | 2014-10-15 | 2014-10-15 | Bearing sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226432U true CN204226432U (en) | 2015-03-25 |
Family
ID=52924533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420596713.4U Expired - Fee Related CN204226432U (en) | 2014-10-15 | 2014-10-15 | Bearing sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329367A (en) * | 2014-10-15 | 2015-02-04 | 哈尔滨东安发动机（集团）有限公司 | Bearing bushing structure |
-
2014
- 2014-10-15 CN CN201420596713.4U patent/CN204226432U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329367A (en) * | 2014-10-15 | 2015-02-04 | 哈尔滨东安发动机（集团）有限公司 | Bearing bushing structure |
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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: 20150325 Termination date: 20191015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |