CN216951306U - Cylindrical roller bearing retainer - Google Patents
Cylindrical roller bearing retainer Download PDFInfo
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- CN216951306U CN216951306U CN202220214055.2U CN202220214055U CN216951306U CN 216951306 U CN216951306 U CN 216951306U CN 202220214055 U CN202220214055 U CN 202220214055U CN 216951306 U CN216951306 U CN 216951306U
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- contact surface
- cylindrical
- arc contact
- roller bearing
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Abstract
The utility model belongs to the technical field of bearing retainers, and particularly relates to a cylindrical roller bearing retainer which comprises two side rings and a plurality of cross beams, wherein the cross beams are uniformly distributed along the circumferential direction and connect the two side rings to form the bearing retainer, pocket holes for mounting cylindrical rollers are formed between the adjacent cross beams, one side of each cross beam relative to each pocket hole is a cross beam side wall, the cross beam side wall is in contact with a rolling surface of each roller, and the cross beam side walls are sequentially provided with a cylindrical contact surface, an eccentric arc contact surface and an arc contact surface from the outer diameter to the inner diameter. The cage pocket structure is the combination of cylinder pocket and circular arc pocket, is an increase circular arc pocket in the footpath side, can guarantee the spacing effect of cage pocket to the bearing, can improve the mobility of lubricating oil in the cage pocket again.
Description
Technical Field
The utility model belongs to the technical field of bearing retainers, and particularly relates to a cylindrical roller bearing retainer.
Background
The pocket hole structure of the traditional engineering plastic retainer for the double-row cylindrical roller bearing of the machine tool spindle is a full-arc pocket hole with a certain clearance, the pocket hole is not beneficial to flowing of lubricating oil under the condition that the bearing runs at a high speed, the lubricating oil in the pocket hole is limited to be incapable of flowing, a good heat dissipation effect is not achieved, the bearing temperature is increased, and the precision of the machine tool is reduced.
Disclosure of Invention
According to the defects existing in the prior art, the utility model aims to provide the cylindrical roller bearing retainer combining the cylindrical pocket and the arc pocket, so that the lubricating oil can flow conveniently, and the service life of the bearing is prolonged.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a cylindrical roller bearing retainer, includes a plurality of crossbeams through ring structural connection, the crossbeam is along circumferencial direction evenly distributed, forms the pocket hole of installation cylindrical roller between the adjacent crossbeam, the crossbeam is the crossbeam lateral wall for one side in pocket hole, the rolling surface contact of crossbeam lateral wall and roller, the crossbeam lateral wall sets gradually into cylinder contact surface, eccentric circular arc contact surface and circular arc contact surface by the direction of outer radial internal diameter.
Furthermore, the cylindrical contact surface and the eccentric arc contact surface are in smooth transition, and the intersection line of the cylindrical contact surface and the eccentric arc contact surface is parallel to the axis of the retainer.
Further, the cylindrical contact surfaces are flat surfaces, and the distance between two corresponding cylindrical contact surfaces in each pocket is smaller than the diameter of the roller.
Further, the eccentric arc contact surface is matched with the roller rotating surface to play a role in limiting the rotating position of the roller.
Furthermore, the arc radius of the eccentric arc contact surface is 0.51-0.52 of the diameter of the roller, and the maximum size of the pocket arc formed by the two corresponding eccentric arc contact surfaces in each pocket is the diameter of the roller plus a certain clearance.
Further, the eccentric arc contact surface and the arc contact surface are in tangential transition.
Further, the eccentric arc contact surface and the arc contact surface are circumscribed.
Further, the ratio of the cylindrical contact surface to the eccentric arc contact surface to the arc contact surface is 2:6: 2.
Further, the rollers are loaded from the cage side direction.
The utility model has the beneficial effects that: the cage pocket structure is the combination of cylinder pocket and circular arc pocket, is an increase circular arc pocket in the footpath side, can guarantee the spacing effect of cage pocket to the bearing, can improve the mobility of lubricating oil in the cage pocket again.
Drawings
FIG. 1 is a cross-sectional view of a cage;
FIG. 2 is an enlarged view of point I;
FIG. 3 is an enlarged view at II;
FIG. 4 is an enlarged view of the pocket;
FIG. 5 is an enlarged view of curvature of a circular arc of a pocket (an enlarged view of curvature showing a direction in which the circular arc extends);
in the figure: 1. crossbeam, 2, pocket hole, 3, cylinder contact surface, 4, eccentric circular arc contact surface, 5, circular arc contact surface.
Detailed Description
In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention.
Referring to the attached drawings 1-5, the cylindrical roller bearing retainer comprises a plurality of cross beams 1 which are connected through a circular ring structure, the cross beams are uniformly distributed along the circumferential direction, pockets 2 for mounting cylindrical rollers are formed between the adjacent cross beams 1, one side of each cross beam relative to each pocket is a cross beam side wall, the cross beam side walls are in contact with rolling surfaces of the rollers, and the cross beam side walls are sequentially arranged into a cylindrical contact surface 3, an eccentric arc contact surface 4 and an arc contact surface 5 from the outer diameter to the inner diameter. The ratio of the cylindrical contact surface 3 to the eccentric arc contact surface 4 to the arc contact surface 5 is 2:6: 2.
Further, the cylindrical contact surface 3 and the eccentric arc contact surface 4 are in smooth transition, and the intersection line of the cylindrical contact surface 3 and the eccentric arc contact surface 4 is parallel to the axis of the retainer. The eccentric arc contact surface 4 and the arc contact surface 5 are circumscribed. The distance between two corresponding beam side walls in each pocket 2 is gradually increased from the outer diameter to the inner diameter, and the rollers are loaded from the side face direction of the retainer.
Cylindrical contact surface: referring to the position I, the outer diameter side of the cage pocket adopts a cylindrical pocket structure, so that lubricating oil can conveniently enter the cage pocket, and the movement amount of the roller in the outer diameter direction is limited. The cylindrical contact surfaces are planes, and the distance between two corresponding cylindrical contact surfaces in each pocket is smaller than the diameter of the roller.
Eccentric arc contact surface: referring to the position II, the cylindrical pocket on the outer diameter side is connected with an eccentric arc pocket, and the eccentric arc contact surface is matched with the rotary surface of the roller to play a role in limiting the rotary position of the roller. The arc radius of the eccentric arc contact surface is 0.51-0.52 of the diameter of the roller, and the maximum size of the pocket arc formed by the two corresponding eccentric arc contact surfaces in each pocket is the diameter Dw of the roller plus a certain clearance epsilon. The eccentricity of the curvature of the pocket is shown in figure 4.
Arc contact surface: referring to the position III, the circular arc pocket hole which is close to the inner diameter side of the retainer and is connected with the pocket hole of the guide roller of the retainer is provided with an enlarged gap, and the gap is the gap between the size of the roller and the size of the pocket hole, so that the lubricating oil can flow conveniently.
The above list is only the preferred embodiment of the present invention. It is obvious that the utility model is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the utility model.
Claims (6)
1. A cylindrical roller bearing cage characterized in that: the cylindrical roller bearing comprises a plurality of cross beams connected through a circular ring structure, the cross beams are uniformly distributed along the circumferential direction, pockets for mounting cylindrical rollers are formed between adjacent cross beams, cross beam side walls are arranged on one sides of the pockets, the cross beam side walls are in contact with rolling surfaces of the rollers, and the cross beam side walls are sequentially arranged into a cylindrical contact surface, an eccentric arc contact surface and an arc contact surface from the direction of the outer radial inner diameter.
2. The cylindrical roller bearing cage of claim 1, wherein: the cylindrical contact surface and the eccentric arc contact surface are in smooth transition, and the intersection line of the cylindrical contact surface and the eccentric arc contact surface is parallel to the axis of the retainer.
3. The cylindrical roller bearing cage of claim 1, wherein: the cylindrical contact surfaces are planes, and the distance between two corresponding cylindrical contact surfaces in each pocket is smaller than the diameter of the roller.
4. The cylindrical roller bearing cage of claim 1, wherein: the eccentric arc contact surface is matched with the rotary surface of the roller, and the function of limiting the rotary position of the roller is achieved.
5. The cylindrical roller bearing cage according to claim 1 or 4, wherein: the arc radius of the eccentric arc contact surface is 0.51-0.52 of the diameter of the roller, and the maximum size of the pocket arc formed by the two corresponding eccentric arc contact surfaces in each pocket is the diameter of the roller plus the clearance.
6. The cylindrical roller bearing cage of claim 1, wherein: the ratio of the cylindrical contact surface to the eccentric arc contact surface to the arc contact surface is 2:6: 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220214055.2U CN216951306U (en) | 2022-01-26 | 2022-01-26 | Cylindrical roller bearing retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220214055.2U CN216951306U (en) | 2022-01-26 | 2022-01-26 | Cylindrical roller bearing retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216951306U true CN216951306U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220214055.2U Active CN216951306U (en) | 2022-01-26 | 2022-01-26 | Cylindrical roller bearing retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216951306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263679A (en) * | 2022-01-26 | 2022-04-01 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Cylindrical roller bearing retainer |
-
2022
- 2022-01-26 CN CN202220214055.2U patent/CN216951306U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263679A (en) * | 2022-01-26 | 2022-04-01 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Cylindrical roller bearing retainer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221207 Address after: 116300 Zhuhua Industrial Park, Wafangdian City, Dalian City, Liaoning Province Patentee after: Wafangdian Bearing Group Co.,Ltd. Address before: 116300 Wafangdian Bearing Industrial Park, Dalian City, Liaoning Province Patentee before: WAFANGDIAN BEARING GROUP NATIONAL BEARING ENGINEERING TECHNOLOGY RESEARCH CENTER Co.,Ltd. |