CN207297643U - Needle bearing cage - Google Patents
Needle bearing cage Download PDFInfo
- Publication number
- CN207297643U CN207297643U CN201721323191.0U CN201721323191U CN207297643U CN 207297643 U CN207297643 U CN 207297643U CN 201721323191 U CN201721323191 U CN 201721323191U CN 207297643 U CN207297643 U CN 207297643U
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- needle roller
- fenestra
- arc
- shaped structure
- annular frame
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Abstract
It the utility model is related to a kind of needle bearing cage,Including annular frame,Annular frame is circumferentially arranged with some needle roller fenestras,There is fenestra beam between two neighboring needle roller fenestra,Fenestra beam both ends are connected with circle body,Fenestra beam includes beam main body,The side of beam main body towards annular frame outside diameter is extended with the extension of the outer radial periphery higher than circle body,The guiding wall of needle roller periphery is guided to extend on the extension on needle roller fenestra,Needle roller fenestra includes two cancave cambered surfaces arc-shaped structure main aperture body positioned opposite surrounded for concave arc shape by radial cross-sectional shape,The radial outside mouth of arc-shaped structure main aperture body is less than the outside fore shaft of needle roller diameter for bore,The radially inner side mouth of arc-shaped structure main aperture body is less than the inner side fore shaft of needle roller diameter for bore,The cancave cambered surface of arc-shaped structure main aperture body corresponds to inner side fore shaft one end and is connected with flat face.Have the advantages that needle roller guiding keeps reliable.
Description
Technical field
Bearing fittings technical field is the utility model is related to, is specifically needle bearing cage.
Background technology
As depicted in figs. 1 and 2, the structure of existing retainer is：Include holding frame body, keep frame body to be equipped with roller window
Hole and the hole beam between adjacent rollers fenestra, including hole beam, outer circumference surface be equipped with fore shaft.The cylindrical roller of the structure
Retainer, it is more commonly used when roller diameter is larger, but when roller diameter is smaller, in order to ensure bearing ring flange with
The lap of roller end face is unlikely to too small, then lasso rib diameter should accordingly reduce, and between retainer outside diameter and rib
Gap is left, such retainer outside diameter will be less than roller centre footpath, it is easy to which roller ascends guarantor during causing bearing operation
The phenomenon held frame and cause retainer to be broken.
The content of the invention
The present utility model purpose：To overcome defect existing in the prior art, the utility model provides a kind of I-shaped
Needle bearing cage, when retainer outside diameter is less than roller centre footpath, retainer fenestra beam diameter is more than roller centre footpath, keeps away
Exempt from the generation that roller ascends retainer phenomenon.
To achieve the above object, the utility model provides following technical solution：A kind of needle bearing cage, including ring
Shape frame body, annular frame have fenestra beam, fenestra beam two circumferentially arranged with some needle roller fenestras between two neighboring needle roller fenestra
End is connected with circle body, it is characterised in that：The fenestra beam includes beam main body, and the side of beam main body towards annular frame outside diameter is prolonged
Stretching has the extension of the outer radial periphery higher than the circle body, guides the guiding wall of needle roller periphery to prolong on the needle roller fenestra
Extend on the extension, needle roller fenestra includes positioned opposite being surrounded for two cancave cambered surfaces of concave arc shape by radial cross-sectional shape
Arc-shaped structure main aperture body, the radial outside mouth of arc-shaped structure main aperture body is less than the outside fore shaft of needle roller diameter for bore,
The radially inner side mouth of arc-shaped structure main aperture body for bore be less than needle roller diameter inner side fore shaft, arc-shaped structure main aperture body it is recessed
Cambered surface corresponds to inner side fore shaft one end and is connected with flat face.
By using above-mentioned technical proposal, the outside diameter of the fenestra beam on retainer is more than circle body outside diameter, so easy to needle roller
The formation of fenestra, the structure of needle roller fenestra is realized to be deviated to annular frame outside diameter, ensures that needle roller and lasso can be realized reliably
Cooperation, needle roller fenestra be used for guide footpath, outside diameter in the arc-shaped structure main aperture body of needle roller to be respectively provided with fore shaft, even in holding
When the circle body outside diameter of frame is less than roller centre footpath（Ensure that the lap of bearing ring flange and roller end face is unlikely to too small feelings
Condition）, retainer fenestra beam outside diameter avoids roller from ascending the generation of retainer phenomenon also greater than roller centre footpath.
Preferably, the extension corresponds to is spaced between the both ends of annular frame axial direction and the corresponding circle body.The knot
Under structure design, extension axial length shortens design, on the one hand preferably steps down, and on the other hand can also reduce needle roller and needle roller
The contact area of fenestra, and enter needle roller fenestra easy to lubricating oil, improve greasy property.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is existing cages for needle structure diagram；
Fig. 2 is along the profile of line A-A cutting in Fig. 1；
Fig. 3 is the utility model specific embodiment cages for needle structure diagram（The rolling of non-cutting among being omitted in figure
Pin fenestra, is illustrated using line x is omitted）；
Fig. 4 is along the profile of line B-B cutting in Fig. 3.
Embodiment
Referring to attached drawing 3 ~ 4, a kind of needle bearing cage disclosed in the utility model, including annular frame 1, annular frame
1 circumferentially arranged with some needle roller fenestras 2, have fenestra beam 11 between two neighboring needle roller fenestra 2,11 both ends of fenestra beam are connected with
Circle body 12, the fenestra beam 11 include beam main body 111, and the side of beam main body 111 towards 1 outside diameter of annular frame, which is extended with, to be higher than
The extension 112 of the outer radial periphery of the circle body 12, guides the guiding wall of 9 periphery of needle roller to prolong on the needle roller fenestra 2
Extend on the extension 112, i.e., extension is formed for the processing of needle roller fenestra, and needle roller fenestra 2 is included by radial section shape
Shape be concave arc shape two cancave cambered surfaces 211 arc-shaped structure main aperture body 21 positioned opposite surrounded, arc-shaped structure main aperture body
21 radial outside mouth is less than the outside fore shaft 212 of 9 diameter of needle roller, the radially inner side mouth of arc-shaped structure main aperture body 21 for bore
It is less than the inner side fore shaft 213 of 9 diameter of needle roller for bore, the cancave cambered surface 211 of arc-shaped structure main aperture body 21 corresponds to inner side fore shaft 213
One end is connected with flat face 22.The outside diameter of fenestra beam on retainer is more than circle body outside diameter, is so easy to the formation of needle roller fenestra,
The structure of needle roller fenestra is realized to be deviated to annular frame outside diameter, ensures that needle roller and lasso can realize reliable cooperation, needle roller
Fenestra is used to guide footpath, outside diameter in the arc-shaped structure main aperture body of needle roller to be respectively provided with fore shaft, outside the circle body of retainer
When footpath is less than roller centre footpath（Ensure that the lap of bearing ring flange and roller end face is unlikely to too small situation）, retainer window
Hole beam outside diameter avoids roller from ascending the generation for causing retainer phenomenon of rupture also greater than roller centre footpath.The structure of the retainer
Simply, realization easy to process.
To ensure the operating of needle roller, the extension 112 corresponds to the both ends of annular frame axial direction and the corresponding circle body
It is spaced between 12（Spacing distance is indicated using L in figure）.Extension axial length shortens design, on the one hand preferably steps down,
On the other hand the contact area of needle roller and needle roller fenestra can be also reduced, and enters needle roller fenestra easy to lubricating oil, improves profit
Slip energy.The oil storage pit of point shape can be set in the concaved circular cambered surface 211 of arc-shaped structure main aperture body 21, to improve needle roller
Greasy property.And point shape oil storage pit micro-structure, lubricating oil are evenly distributed.
Above-described embodiment is merely to illustrate the utility model, is not the limitation to scope of protection of the utility model, owns
Equivalent under the utility model in essence spiritual guidance each falls within the protection category of the utility model.
Claims (2)
1. a kind of needle bearing cage, including annular frame, annular frame is two neighboring circumferentially arranged with some needle roller fenestras
There is fenestra beam, fenestra beam both ends are connected with circle body between needle roller fenestra, it is characterised in that：The fenestra beam includes beam master
Body, the side of beam main body towards annular frame outside diameter is extended with the extension of the outer radial periphery higher than the circle body, described
The guiding wall of needle roller periphery is guided to extend on the extension on needle roller fenestra, needle roller fenestra is included by radial cross-sectional shape
It is outside for two cancave cambered surfaces arc-shaped structure main aperture body positioned opposite surrounded of concave arc shape, the footpath of arc-shaped structure main aperture body
Side port is less than the outside fore shaft of needle roller diameter for bore, and the radially inner side mouth of arc-shaped structure main aperture body is straight less than needle roller for bore
The inner side fore shaft in footpath, the cancave cambered surface of arc-shaped structure main aperture body correspond to inner side fore shaft one end and are connected with flat face.
2. needle bearing cage according to claim 1, it is characterised in that：The extension corresponds to annular frame axial direction
It is spaced between both ends and the corresponding circle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721323191.0U CN207297643U (en) | 2017-10-13 | 2017-10-13 | Needle bearing cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721323191.0U CN207297643U (en) | 2017-10-13 | 2017-10-13 | Needle bearing cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207297643U true CN207297643U (en) | 2018-05-01 |
Family
ID=62415192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721323191.0U Active CN207297643U (en) | 2017-10-13 | 2017-10-13 | Needle bearing cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207297643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808401A (en) * | 2018-05-03 | 2018-11-13 | 同济大学 | A kind of conducting heavy current rotary joint for the transmission of solar energy submatrix electric energy |
-
2017
- 2017-10-13 CN CN201721323191.0U patent/CN207297643U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808401A (en) * | 2018-05-03 | 2018-11-13 | 同济大学 | A kind of conducting heavy current rotary joint for the transmission of solar energy submatrix electric energy |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000 Wenzhou economic and Technological Development Zone, Wenzhou, Wenzhou, Zhejiang Province, No. 515, seashore Patentee after: C&U Co.,Ltd. Patentee after: SHANGHAI C&U GROUP Co.,Ltd. Address before: 325000 Wenzhou economic and Technological Development Zone, Wenzhou, Wenzhou, Zhejiang Province, No. 515, seashore Patentee before: C & U Group Ltd. Patentee before: SHANGHAI C&U GROUP Co.,Ltd. |