CN204025386U - A kind of new-type rolling bearing ring rotation prevention structure - Google Patents
A kind of new-type rolling bearing ring rotation prevention structure Download PDFInfo
- Publication number
- CN204025386U CN204025386U CN201420467477.6U CN201420467477U CN204025386U CN 204025386 U CN204025386 U CN 204025386U CN 201420467477 U CN201420467477 U CN 201420467477U CN 204025386 U CN204025386 U CN 204025386U
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- CN
- China
- Prior art keywords
- rolling bearing
- cup
- shaped retainer
- rotation prevention
- prevention structure
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- Expired - Fee Related
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Abstract
A kind of new-type rolling bearing ring rotation prevention structure that the utility model provides, forms primarily of lining (1), rolling bearing lasso (2), cup-shaped retainer (3) and gland nut (4).Wherein, lining (1) is connected with engine rotor, as the supporting member of rotation prevention structure; Rolling bearing lasso (2) as rotor load-carrying member, for transmitting load suffered by rotor; Gland nut (4), as stressed member, for limiting rolling bearing lasso (2) axial displacement, and provides frictional force to prevent bearing circumference from rotating; Cup-shaped retainer (3), as anti-rotation fastening piece, realizes preventing the circumference of adjacent parts from rotating.The utility model advantage is: little on main machine structure impact, is unified on a part by the rotation prevention structure of gland nut and bearing ring.Have the advantage that structure is simple, reliability is high concurrently simultaneously.
Description
Technical field
The utility model relates to and belongs to the design of aeroengine rolling bearing lasso rotation prevention structure, also can be used on gas turbine.
Background technique
After bearing ring is seated in aeroengine, generally carry out axially locating by gland nut, and the frictional force produced after being compressed by end face prevents the rotation of bearing.For ensureing that gland nut does not loosen, the general rotation adopting lock plate structure to prevent nut.Locking plate form has T-shaped locking plate, lock washer, also has cupwasher.Due to the impact by temperature during engine operation, bearing face compresses and may lose efficacy, and now bearing ring only prevents from rotating by coordinating with the assembling of axle (or bearing support), can reduce the reliability that bearing ring prevents from rotating.
Model utility content
The purpose of this utility model is to propose a kind of new rolling bearing lasso rotation prevention structure, while realizing bearing ring positive mechanical anti-rotation, does not cause large change again to available engine structure.
The utility model provides a kind of new-type rolling bearing inner race rotation prevention structure, it is characterized in that: comprise rolling bearing lasso, cup-shaped retainer, gland nut and lining; An end face of rolling bearing lasso has circumferentially 180 degree of uniform 2 place's grooves; Cup-shaped retainer is cup-like structure, and bottom is annular, and bottom lower surface radial direction is processed with 2 place's raised platforms; Base circle inner surface radial direction direction is processed with 2 place's raised platforms, and this 2 place raised platforms line is vertical with 2 place's raised platforms lines of bottom lower surface; Lining is in axial direction processed with 2 place's symmetrical grooves;
After rolling bearing lasso is seated on lining, cup-shaped retainer is then installed; After two place's raised platforms on cup-shaped retainer base circle internal surface are alignd with the axial notch on lining, cup-shaped retainer loads vertically; Cup-shaped retainer bottom lower surface boss aligns with end surface of bearing ring groove, and freely loads groove, and cup-shaped retainer bottom lower surface and bearing ring end face of slotting is close to gapless; Be screwed into gland nut, gland nut compresses end face and cup-shaped retainer upper base surface is close to gapless; Cup-shaped retainer cup barrel stress deformation, distortion makes gland nut be stuck, and prevents gland nut from rotating.
The new-type rolling bearing ring rotation prevention structure that the utility model provides, its advantage is: little on main machine structure impact, is unified on a part by the rotation prevention structure of gland nut and rolling bearing lasso.Have the advantage that structure is simple, reliability is high concurrently simultaneously.
Accompanying drawing explanation
A kind of new-type rolling bearing ring of Fig. 1 rotation prevention structure assembling condition schematic diagram
A kind of new-type rolling bearing ring of Fig. 2 rotation prevention structure assemble sequence schematic diagram
Embodiment
Embodiment
A kind of new-type rolling bearing ring rotation prevention structure is made up of lining 1, rolling bearing lasso 2, cup-shaped retainer 3 and gland nut 4.Wherein, lining 1 is connected with engine rotor, as the supporting member of rotation prevention structure; Rolling bearing lasso 2 as rotor load-carrying member, for transmitting load suffered by rotor; Gland nut 4, as stressed member, for limiting rolling bearing lasso 2 axial displacement, and provides frictional force to prevent bearing circumference from rotating; Cup-shaped retainer 3, as anti-rotation fastening piece, realizes preventing the circumference of adjacent parts from rotating.Be specially:
Block rolling bearing lasso by cup-shaped retainer 3 bottom lower surface boss, provide extra stop measure to rolling bearing lasso 2; Block lining 1 by two place's projections on cup-shaped retainer 3 base circle internal surface, cup-shaped retainer 3 also can not be rotated under stressing conditions.Lining 1, rolling bearing lasso 2 and cup-shaped retainer 3 block mutually, can realize the anti-rotation of bearing ring.
Claims (5)
1. a new-type rolling bearing ring rotation prevention structure, is characterized in that: comprise lining (1), rolling bearing lasso (2), cup-shaped retainer (3) and gland nut (4);
Lining (1) internal diameter is connected with engine rotor, as the supporting member of whole fulcrum structure;
After rolling bearing lasso (2) is seated on lining (1), transmit load suffered by engine rotor;
Cup-shaped retainer (3), as anti-rotation fastening piece, loads along the upper axial notch of lining (1), realizes preventing the circumference of adjacent parts from rotating;
Gland nut (4), as stressed member, for limiting rolling bearing lasso (2) and cup-shaped retainer (3) axial displacement, and provides frictional force to prevent bearing circumference from rotating.
2. according to new-type rolling bearing ring rotation prevention structure according to claim 1, it is characterized in that: between rolling bearing lasso (2) and gland nut (4), increase cup-shaped retainer (3), the bottom lower surface of rolling bearing lasso (2) fluting end face and cup-shaped retainer (3) is close to, and upper base surface and the gland nut (4) of cup-shaped retainer (3) are close to.
3. according to the new-type rolling bearing ring rotation prevention structure described in claim 1 or 2, it is characterized in that: two place's raised platforms on cup-shaped retainer (3) base circle internal surface are alignd with the axial notch on lining (1), and cup-shaped retainer (3) loads vertically.
4. according to the new-type rolling bearing ring rotation prevention structure described in claim 1 or 2, it is characterized in that: cup-shaped retainer (3) bottom lower surface boss aligns with rolling bearing lasso (2) facing groove, and freely load groove, cup-shaped retainer (3) bottom lower surface and rolling bearing lasso (2) end face snap to none gap.
5. according to the new-type rolling bearing ring rotation prevention structure described in claim 1 or 2, it is characterized in that: gland nut (4) and cup-shaped retainer (3) upper base surface are close to, cup-shaped retainer (3) cup barrel is hit force deformation, locking gland nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467477.6U CN204025386U (en) | 2014-08-17 | 2014-08-17 | A kind of new-type rolling bearing ring rotation prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467477.6U CN204025386U (en) | 2014-08-17 | 2014-08-17 | A kind of new-type rolling bearing ring rotation prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025386U true CN204025386U (en) | 2014-12-17 |
Family
ID=52065255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420467477.6U Expired - Fee Related CN204025386U (en) | 2014-08-17 | 2014-08-17 | A kind of new-type rolling bearing ring rotation prevention structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659009A (en) * | 2019-10-15 | 2021-04-16 | 中国航发商用航空发动机有限责任公司 | Lock ring locking tool |
-
2014
- 2014-08-17 CN CN201420467477.6U patent/CN204025386U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659009A (en) * | 2019-10-15 | 2021-04-16 | 中国航发商用航空发动机有限责任公司 | Lock ring locking tool |
| CN112659009B (en) * | 2019-10-15 | 2022-11-15 | 中国航发商用航空发动机有限责任公司 | Lock ring locking tool |
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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: 20141217 Termination date: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |