CN203161843U - Retainer with arc-shaped pocket hole - Google Patents
Retainer with arc-shaped pocket hole Download PDFInfo
- Publication number
- CN203161843U CN203161843U CN 201320002937 CN201320002937U CN203161843U CN 203161843 U CN203161843 U CN 203161843U CN 201320002937 CN201320002937 CN 201320002937 CN 201320002937 U CN201320002937 U CN 201320002937U CN 203161843 U CN203161843 U CN 203161843U
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- CN
- China
- Prior art keywords
- retainer
- cylindrical roller
- radius
- arc
- curvature
- Prior art date
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Abstract
The utility model discloses a retainer with an arc-shaped pocket hole, wherein the other structural dimensions of the retainer (2) and the matched cylindrical roller (1) are unchanged; the installation direction of the central axis of the matched cylindrical roller is as the same as the direction of the central axis of the retainer; the pocket hole of the retainer is fomred in the shape of an inner arc, and the curvature radius of the inner arc is not less than the radius of the matched cylindrical roller; the inner arc forms an outer lock-opening arc surface (2.1) at the position close to the outer diameter end of the retainer, and forms an inner lock-opening arc surface (2.2) at the position close to the inner diameter end of the retainer; the curvature radiuses of the outer lock-opening arc surface and the curvature radius of the inner lock-opening arc surface are less than the radius of the matched cylindrical roller, and the curvature radius of the outer lock-opening arc surface is greater than the curvature radius of the inner lock-opening arc surface; a plurality of oil storage grooves (2.3) are configured in the inner arc surfaces; and a certain guide clearance is formed between the matched cylindrical roller and the inner arc, and capable of ensuring the flexible and stable rotation of the matched cylindrical roller, reducing the phenomena of friction heating and collision, and reducing the bearing vibration.
Description
Technical field
The utility model belongs to the retainer technical field, refers more particularly to a kind of retainer with arcuation pocket hole.
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Background technique
Cylindrical roller is line with the raceway of outer ring and inner ring and contacts, and this makes roller bearing have the bearing capacity height, radial rigidity is big, and the convenient characteristics of unloading are pulled in limit speed height, installation.
The pocket hole of cylindrical roller retainer is generally rectangle pocket hole, rectangle pocket hole and cylindrical roller match, because the guide surface of the relative cylindrical roller in pocket hole is linearly, increased the movement instability of cylindrical roller, cause pivot friction to increase, and prevent the lock point that cylindrical roller comes off because rectangle pocket hole is provided with to arrange, cylindrical roller is come off from rectangle pocket hole easily.
Summary of the invention
For addressing the above problem, the utility model has designed a kind of retainer with arcuation pocket hole, arcuation pocket hole and cylindrical roller match, in the inner in arcuation pocket hole and outer end are respectively arranged with fore shaft and outside fore shaft cause the cylindrical roller difficult drop-off, improve the stability of motions of cylindrical roller, reduced pivot friction.
For achieving the above object, the utility model adopts following technological scheme:
A kind of retainer with arcuation pocket hole, retainer is constant with other physical dimension of join cylindrical roller, to join the central axis installation direction of cylindrical roller identical with the central axial direction of retainer, be designed to the pocket hole of retainer interior circular-arc, the radius of curvature of circular arc in described 〉=join the radius of cylindrical roller, circular arc fore shaft cambered surface outside forming near retainer external diameter end in described, circular arc fore shaft cambered surface in forming near retainer internal diameter end in described, the radius of curvature of the radius of curvature of outer fore shaft cambered surface and interior fore shaft cambered surface all＜join the radius of cylindrical roller but the radius of curvature of the radius of curvature＞interior fore shaft cambered surface of outer fore shaft cambered surface disposes several oil storage grooves at described inner arc surface.
Owing to adopt technological scheme as mentioned above, the utility model produces following beneficial effect:
1, the utility model is circular-arc in the pocket hole of retainer is designed to, and can improve the overall construction intensity of retainer.
2, because the radius of curvature of interior circular arc 〉=join the radius of cylindrical roller, join cylindrical roller and described in have certain guide clearance between the circular arc, energy assurance institute joins cylindrical roller and rotates flexibly with steady, join cylindrical roller and reduce in frictional heating and the collision effect of interior circular arc, bear vibration is minimized.
3, outer fore shaft cambered surface and interior fore shaft cambered surface have auto-lock function, can pin institute and join the cylindrical roller pocket hole that do not come off.
4, the problem of stress concentration in pocket hole has been alleviated in the transition of outer fore shaft cambered surface and interior fore shaft cambered surface and interior circular arc nature, has also improved the intensity of retainer.
5, oil storage grooves not with joining cylindrical roller contact, in oil storage grooves, can store a part of oiling agent, be beneficial to oiling agent and enter described inner arc surface and the join contact area of cylindrical roller, improve the lubricating status of described contact area, further reduce mutual friction.
Description of drawings
Fig. 1 be retainer partly cut open the structural representation sketch.
Fig. 2 is the left view of Fig. 1.
Among the above-mentioned figure: the 1-cylindrical roller; The 2-retainer; 2.1-outer fore shaft cambered surface; 2.2-interior fore shaft cambered surface; 2.3-groove.
Embodiment
The utility model is a kind of retainer with arcuation pocket hole, the utility model only changes the pocket hole structure shape of retainer 2, retainer 2 is constant with other physical dimension of join cylindrical roller 1, to join the central axis installation direction of cylindrical roller 1 identical with the central axial direction of retainer 2.
In conjunction with Fig. 1-2, the utility model is circular-arc in the pocket hole of retainer 2 is designed to, and can improve the overall construction intensity of retainer.
The radius of curvature of circular arc in described 〉=join the radius of cylindrical roller 1, because the radius of curvature of circular arc in described 〉=join the radius of cylindrical roller 1, join cylindrical roller 1 and described in have certain guide clearance between the circular arc, energy assurance institute joins cylindrical roller 1 and rotates flexibly with steady, join cylindrical roller 1 circular arc in described frictional heating and collision effect reduce, bear vibration is minimized.
Circular arc fore shaft cambered surface 2.1 outside forming near retainer 2 external diameter ends in described, circular arc fore shaft cambered surface 2.2 in forming near retainer internal diameter end in described, the radius of curvature of the radius of curvature of outer fore shaft cambered surface 2.1 and interior fore shaft cambered surface 2.2 all＜join the radius of cylindrical roller 1 but the radius of curvature of the radius of curvature＞interior fore shaft cambered surface 2.2 of outer fore shaft cambered surface 2.1, outer fore shaft cambered surface 2.1 and interior fore shaft cambered surface 2.2 have auto-lock function, can pin institute and join the cylindrical roller 1 pocket hole that do not come off.
Outer fore shaft cambered surface 2.1 and interior fore shaft cambered surface 2.2 with described in the transition of circular arc nature, alleviated the problem of stress concentration in pocket hole, also improved the intensity of retainer 2.
Dispose several oil storage grooves 2.3 at described inner arc surface, oil storage grooves 2.3 not with joining cylindrical roller 1 contact, in oil storage grooves 2.3, can store a part of oiling agent, be beneficial to oiling agent and enter described inner arc surface and the join contact area of cylindrical roller 1, improve the lubricating status of described contact area, further reduce mutual friction.
Retainer of the present utility model has promoted working life and the operating speed of bearing to greatest extent, satisfies high-end main frame to bearing rotating speed, life-span and technology of dependability requirement.
Claims (1)
1. retainer with arcuation pocket hole, retainer (2) is constant with other physical dimension of join cylindrical roller (1), to join the central axis installation direction of cylindrical roller (1) identical with the central axial direction of retainer (2), it is characterized in that: be designed to the pocket hole of retainer (2) interior circular-arc, the radius of curvature of circular arc in described 〉=join the radius of cylindrical roller (1), circular arc fore shaft cambered surface (2.1) outside forming near retainer (2) external diameter end in described, circular arc fore shaft cambered surface (2.2) in forming near retainer (2) internal diameter end in described, the radius of curvature of the radius of curvature of outer fore shaft cambered surface (2.1) and interior fore shaft cambered surface (2.2) all＜join the radius of cylindrical roller (1) but the radius of curvature of the radius of curvature＞interior fore shaft cambered surface (2.2) of outer fore shaft cambered surface (2.1) disposes several oil storage grooves (2.3) at described inner arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002937 CN203161843U (en) | 2013-01-06 | 2013-01-06 | Retainer with arc-shaped pocket hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002937 CN203161843U (en) | 2013-01-06 | 2013-01-06 | Retainer with arc-shaped pocket hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161843U true CN203161843U (en) | 2013-08-28 |
Family
ID=49023029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320002937 Expired - Lifetime CN203161843U (en) | 2013-01-06 | 2013-01-06 | Retainer with arc-shaped pocket hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161843U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246729A (en) * | 2016-08-24 | 2016-12-21 | 大连国威轴承股份有限公司 | A kind of single row roller bearing of band one self-locking retainer |
| CN108278272A (en) * | 2018-03-12 | 2018-07-13 | 无锡市第二轴承有限公司 | Photovoltaic special cylindrical roller bearing |
| CN111894987A (en) * | 2020-07-31 | 2020-11-06 | 中车大连机车研究所有限公司 | Rolling bearing retainer with improved pocket structure and rolling bearing |
| CN113090668A (en) * | 2021-04-06 | 2021-07-09 | 聊城市中瑞轴承配件股份有限公司 | High-speed railway traction motor bearing retainer |
-
2013
- 2013-01-06 CN CN 201320002937 patent/CN203161843U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246729A (en) * | 2016-08-24 | 2016-12-21 | 大连国威轴承股份有限公司 | A kind of single row roller bearing of band one self-locking retainer |
| CN108278272A (en) * | 2018-03-12 | 2018-07-13 | 无锡市第二轴承有限公司 | Photovoltaic special cylindrical roller bearing |
| CN111894987A (en) * | 2020-07-31 | 2020-11-06 | 中车大连机车研究所有限公司 | Rolling bearing retainer with improved pocket structure and rolling bearing |
| CN113090668A (en) * | 2021-04-06 | 2021-07-09 | 聊城市中瑞轴承配件股份有限公司 | High-speed railway traction motor bearing retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161228 Address after: 324400 Yongtai Road, Longyou Industrial Park, Zhejiang, No. 33 Patentee after: ZHONGZHE HIGH-SPEED RAILWAY BEARING CO.,LTD. Address before: 471039 Henan province Luoyang Fenghua high tech Development Zone, Road No. 6 Patentee before: LUOYANG BEARING SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |