CN204152964U - The fixed structure of unidirectional needle bearing sheetmetal spring and retainer - Google Patents
The fixed structure of unidirectional needle bearing sheetmetal spring and retainer Download PDFInfo
- Publication number
- CN204152964U CN204152964U CN201420604019.2U CN201420604019U CN204152964U CN 204152964 U CN204152964 U CN 204152964U CN 201420604019 U CN201420604019 U CN 201420604019U CN 204152964 U CN204152964 U CN 204152964U
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- CN
- China
- Prior art keywords
- sheetmetal
- spring
- sheetmetal spring
- retainer
- needle roller
- 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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- Bearings For Parts Moving Linearly (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model provides the fixed structure of a kind of unidirectional needle bearing sheetmetal spring and retainer, comprise sheetmetal spring, retainer, improvements are: be interval with several for inserting the window of needle roller at the circumferencial direction of retainer, a strut rail is had to separate between each window, the outer surface of strut rail is provided with a catching groove matched with sheetmetal spring bending shape, sheetmetal spring is embedded in catching groove, a needle roller is placed in each window, sheetmetal spring two ends are against on the needle roller of unilateral bearing mutually, in the wedge shape die cavity that needle roller is close between the inner ring of unilateral bearing and outer ring.Preferably, sheetmetal spring bending angle is 50 degree ~ 70 degree.In this fixed structure, the bending angle of sheetmetal spring is little, low to the quality requirement of sheetmetal, without large stress concentration point in the forming process and use of sheetmetal spring, there will not be fractureing of sheetmetal spring.
Description
Technical field
The utility model relates to unidirectional needle bearing, the fixed structure of especially a kind of unilateral bearing retaining sheetmetal spring and retainer.
Background technique
At present, the installation form of needle roller retaining spring on nylon cages of unilateral bearing both domestic and external generally has back of the body button, end button and embedded, the equal more complicated of spring shape of back of the body button and end button, bending part is many, bending angle is large, in use bending part easily ruptures, high to the quality requirement of sheetmetal.Shape matching is simple comparatively speaking for the sheetmetal spring of damascene structures, but at least also has the bending of two places, and bending angle is at 150-135 degree.Bending angle after installation reaches about 165 degree, in use through the anti-shoe extruding of needle roller, causes spring to rupture at bending part, unidirectional roller bearing is held and occurs early failue.
Summary of the invention
For solving the problem, the structure of the utility model to sheetmetal spring is optimized design, avoid the bending of wide-angle, its bending angle is at about 60 degree, and only have a bending part, after installing, bending angle also can reduce, the utility model also belongs to Embedded one in sheetmetal spring fixed form, retainer is designed with the catching groove with spring sheet mating shapes, sheetmetal spring directly embeds in the catching groove of retainer, it is also relatively convenient to install, in use the bending angle of sheetmetal spring diminishes instead of strengthens, damage can not be caused to sheetmetal spring, large stress can not be produced concentrate, there will not be spring fracture phenomenon.The technical solution adopted in the utility model is:
A fixed structure for unidirectional needle bearing sheetmetal spring and retainer, comprise sheetmetal spring, retainer, improvements are:
Several are interval with for inserting the window of needle roller at the circumferencial direction of retainer, a strut rail is had to separate between each window, the outer surface of strut rail is provided with a catching groove matched with sheetmetal spring bending shape, sheetmetal spring is embedded in the catching groove of retainer strut rail, a needle roller is placed in each window, sheetmetal spring two ends are against on the needle roller of unilateral bearing mutually, in the wedge shape die cavity that needle roller is close between the inner ring of unilateral bearing and outer ring.
Preferably, sheetmetal spring bending angle is 50 degree ~ 70 degree, and only has a bending angle at middle part.
More preferably, sheetmetal spring bending angle is 60 degree.
The utility model has the advantage of: the structure of sheetmetal spring is simple, easily manufactured, bending angle is little, low to the quality requirement of sheetmetal, without large stress concentration point in the forming process and use of sheetmetal spring, there will not be fractureing of sheetmetal spring, when assembling, sheetmetal spring can easily put into the catching groove of retainer.Spring fitting is stablized, and is convenient to extensive use, can effectively raises the working life of product.
Accompanying drawing explanation
Fig. 1 is structure of the present utility model composition schematic diagram.
Fig. 2 is sheetmetal spring of the present utility model and nylon cages mounting structure schematic diagram.
Fig. 3 is sheetmetal spring bending angle schematic diagram of the present utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
The unidirectional needle bearing sheetmetal spring that the utility model proposes and the fixed structure of retainer, as shown in Figure 1, 2, Fig. 2 overlooks direction schematic diagram after Fig. 1 removes bearing outer ring, comprises sheetmetal spring 1, nylon cages 2; Improvements are as described below:
Several are interval with for inserting the window of needle roller 3 at the circumferencial direction of nylon cages 2, a strut rail 6(strut rail 6 is had to be the part of nylon cages 2 between each window) separate, the outer surface of strut rail 6 is provided with a catching groove 7 matched with sheetmetal spring 1 bending shape, sheetmetal spring 1 is embedded in the catching groove 7 of retainer strut rail 6, a needle roller 3 is placed in each window, sheetmetal spring 1 two ends are against on the needle roller 3 of unilateral bearing mutually, in the wedge shape die cavity 8 that needle roller 3 is close between the inner ring 5 of unilateral bearing and outer ring 4.
Sheetmetal spring 1 bending angle is 50 degree ~ 70 degree, and only has a bending angle at middle part, is preferably 60 degree, as shown in Figure 3.
Be sheetmetal spring 1 bending state originally shown in dotted line in Fig. 2, be that sheetmetal spring 1 embeds catching groove 7 and state after offseting with needle roller 3 shown in solid line, bending angle has diminished.
The working procedure of this structure is: when unidirectional needle bearing wedging rotates, namely the outer ring 4 in Fig. 1 rotates clockwise, needle roller 3 is under the thrust of sheetmetal spring 1 and the effect of friction, to the little extreme direction motion of wedge shape die cavity 8, at this moment unilateral bearing outer ring 4, inner ring 5, needle roller 3 three rotary work together in aggregates.
When unidirectional needle bearing exits wedging state, needle roller 3 presses to sheetmetal spring 1, and now unilateral bearing is in non-wedging state, and the bending angle of sheetmetal spring 1 is flattened, sheetmetal spring 1 can not compress and produce large stress concentrate.
Claims (3)
1. a fixed structure for unidirectional needle bearing sheetmetal spring and retainer, comprises sheetmetal spring (1), retainer (2), it is characterized in that:
Several are interval with for inserting the window of needle roller (3) at the circumferencial direction of retainer (2), a strut rail (6) is had to separate between each window, the outer surface of strut rail (6) is provided with a catching groove (7) matched with sheetmetal spring (1) bending shape, sheetmetal spring (1) is embedded in the catching groove (7) of retainer strut rail (6), a needle roller (3) is placed in each window, sheetmetal spring (1) two end is against on the needle roller (3) of unilateral bearing mutually, in the wedge shape die cavity (8) that needle roller (3) is close between the inner ring (5) of unilateral bearing and outer ring (4).
2. the fixed structure of unidirectional needle bearing sheetmetal spring as claimed in claim 1 and retainer, is characterized in that:
Sheetmetal spring (1) bending angle is 50 degree ~ 70 degree, and only has a bending angle at middle part.
3. the fixed structure of unidirectional needle bearing sheetmetal spring as claimed in claim 2 and retainer, is characterized in that:
Sheetmetal spring (1) bending angle is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604019.2U CN204152964U (en) | 2014-10-17 | 2014-10-17 | The fixed structure of unidirectional needle bearing sheetmetal spring and retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604019.2U CN204152964U (en) | 2014-10-17 | 2014-10-17 | The fixed structure of unidirectional needle bearing sheetmetal spring and retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152964U true CN204152964U (en) | 2015-02-11 |
Family
ID=52511084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420604019.2U Expired - Fee Related CN204152964U (en) | 2014-10-17 | 2014-10-17 | The fixed structure of unidirectional needle bearing sheetmetal spring and retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204152964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757724A (en) * | 2018-08-18 | 2018-11-06 | 苏州金诚轴承有限公司 | A kind of unilateral bearing that mounted and high-speed uses |
-
2014
- 2014-10-17 CN CN201420604019.2U patent/CN204152964U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757724A (en) * | 2018-08-18 | 2018-11-06 | 苏州金诚轴承有限公司 | A kind of unilateral bearing that mounted and high-speed uses |
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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: 20150211 Termination date: 20191017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |