CN104329381A - Bearing bushing - Google Patents
Bearing bushing Download PDFInfo
- Publication number
- CN104329381A CN104329381A CN201410545830.2A CN201410545830A CN104329381A CN 104329381 A CN104329381 A CN 104329381A CN 201410545830 A CN201410545830 A CN 201410545830A CN 104329381 A CN104329381 A CN 104329381A
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- CN
- China
- Prior art keywords
- screw
- bearing sleeve
- flange
- bearing
- screw hole
- 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.)
- Pending
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- Mounting Of Bearings Or Others (AREA)
Abstract
The invention relates to a bearing bushing, which comprises a bushing cylinder 1 and convex edges 1a and 1b arranged on the bushing cylinder 1, wherein the convex edges 1a and 1b are arranged at two axial ends of the bushing cylinder 1; the convex edge 1a extends outwardly; the convex edge 1b extends inwardly; the convex edge 1b is provided with an extending part continuing to extend inwardly and a screw hole 1c; and the bearing bushing can be fixed outside a shell 3 via a screw 2. Reliability of bearing transmission can be ensured, the product weight can be effectively lightened, the problem of mutual interference of mounting parts can be avoided, and in addition, as the force is applied outside the shell for fixing, the operation is simple and convenient.
Description
Technical field
The present invention relates to a kind of bearing sleeve, can because of the gap that the reason such as thermal expansion produces between auto-compensation and housing, and the feature such as it is simple to have installation position structure, lightweight.
Background technique
The lining of bearing sleeve, 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 is generally a cannulated sleeve, 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.In order to ensure the centering function of lining, there is a kind of novel bearing sleeve structure, as shown in Figure 1, bearing sleeve is a sleeve with mounting flange, 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.Although this structure ensure that the centering function of lining, in order to ensure the reliability that screw is installed, need to set up mounting portion on housing, shell dimension will be caused to increase, and weight increases, and it is very unfavorable that this loss of weight for aviation field requires.In addition, as in aviation transmission field, the bearing installed in some parts is more, also very concentrated, and the mounting portion set up is easy to produce interferes, and causes installation strength not enough, sometimes even can produce situation about cannot install.Meanwhile, when mounted, to this structure screw tighten from enclosure interior force, due to the restriction in space, operates very difficult.
Summary of the invention
The object of this invention is to provide a kind of bearing sleeve, described bearing sleeve has compact structure, lightweight, easy to operate 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.
Technological scheme of the present invention is, bearing sleeve comprises lining cylinder and is arranged on the flange on lining cylinder, described flange is arranged on the axial two ends of lining cylinder, its flange extends outward, flange extends inward, described flange is provided with and continues inside extension part and be provided with screw hole, can be fixed by bearing sleeve by screw in outside.Be provided with the structure preventing screw from getting loose between described screw hole and screw, comprise screw hole and screw interference fit, or be provided with locking plate on screw.Described screw hole is multiple.
Bearing sleeve of the present invention is provided with to inward flange, and be fixed in outside by screw, when temperature variation, can not cause because of the linear expansion coeffcient relation different from case material that magnitude of interference is installed and reduce or disappear, ensure that the reliability of bearing-transmission.Meanwhile, do not need the mounting portion setting up screw again, effectively alleviate the weight of product, and avoid the problem of mutually interfering mounting portion.In addition, fix by carrying out force in outside, there is simple, convenient feature.
Accompanying drawing explanation
Fig. 1 is bearing sleeve structural drawing of the prior art;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is scheme of installation of the present invention.
Embodiment
As shown in the figure, flange 1a, 1b that bearing sleeve comprises lining cylinder 1 and is arranged on lining cylinder 1, described flange 1a, 1b are arranged on the axial two ends of lining cylinder 1, its flange 1a extends outward, flange 1b extends inward, described flange 1b is provided with and continues inside extension part and be provided with screw hole 1c, can be fixed by bearing sleeve by screw 2 in housing 3 outside.Be provided with the structure preventing screw from getting loose between described screw hole 3 and screw 2, comprise screw hole 1c and screw 2 interference fit, or be provided with locking plate on screw.Described screw hole 1c is multiple.
Claims (5)
1. a bearing sleeve, it is characterized in that, described threaded bushing comprises lining cylinder (1) and is arranged on the flange (1a, 1b) on lining cylinder (1), described flange (1a, 1b) is arranged on the axial two ends of lining cylinder (1), its flange (1a) extends outward, flange (1b) extends inward, described flange (1b) is provided with and continues inside extension part and be provided with screw hole (1c), can be fixed by bearing sleeve by screw (2) in housing (3) outside.
2. a kind of bearing sleeve as claimed in claim 1, is characterized in that, is provided with the structure preventing screw from getting loose between described screw hole (3) and screw (2).
3. a kind of bearing sleeve as claimed in claim 2, is characterized in that, the described structure preventing screw from getting loose is screw hole (1c) and screw (2) interference fit.
4. a kind of bearing sleeve as claimed in claim 2, is characterized in that, the described structure preventing screw from getting loose for be provided with locking plate on screw (2).
5. a kind of bearing sleeve as claimed in claim 1, is characterized in that, described screw hole (1c) is for multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545830.2A CN104329381A (en) | 2014-10-15 | 2014-10-15 | Bearing bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545830.2A CN104329381A (en) | 2014-10-15 | 2014-10-15 | Bearing bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104329381A true CN104329381A (en) | 2015-02-04 |
Family
ID=52404160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410545830.2A Pending CN104329381A (en) | 2014-10-15 | 2014-10-15 | Bearing bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528408A (en) * | 2016-06-20 | 2017-12-29 | 中车株洲电力机车研究所有限公司 | The end cap and motor of a kind of motor bearing chamber |
-
2014
- 2014-10-15 CN CN201410545830.2A patent/CN104329381A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528408A (en) * | 2016-06-20 | 2017-12-29 | 中车株洲电力机车研究所有限公司 | The end cap and motor of a kind of motor bearing chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150204 |
|
| WD01 | Invention patent application deemed withdrawn after publication |