CN204239477U - A kind of retainer - Google Patents
A kind of retainer Download PDFInfo
- Publication number
- CN204239477U CN204239477U CN201420595258.6U CN201420595258U CN204239477U CN 204239477 U CN204239477 U CN 204239477U CN 201420595258 U CN201420595258 U CN 201420595258U CN 204239477 U CN204239477 U CN 204239477U
- Authority
- CN
- China
- Prior art keywords
- crossbeam
- window
- fenestra
- retainer
- ribs
- 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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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a kind of retainer, comprise two ribs and window crossbeam, two ribs are along the circumferential direction fixed together by window crossbeam, the fenestra for installing cylindrical roller is formed between adjacent window apertures crossbeam, on the upper-end surface of window crossbeam, broad ways is provided with fore shaft, the upper-end surface of window crossbeam also offers groove along its length, and groove is through fore shaft, and the rib of fenestra both sides is respectively arranged with boss; The inner ring of described two ribs is respectively equipped with annular retaining ring, the inward flange of annular retaining ring is along the circumferential direction laid with some breach, described window crossbeam center side place offers the center hole running through bi-side, be provided with roller bearing in center hole and roller bearing freely can rotate in center hole, the two ends of roller bearing are connected in blind hole that the both ends of the surface of the cylindrical roller be arranged in fenestra are offered.
Description
Technical field
The utility model relates to retainer technical field, particularly relates to a kind of retainer.
Background technique
As everyone knows, roller bearing wants to reach at a high speed, must reduce internal friction, and then reduces heat generation, reduces temperature rise.The friction of cylindrical roller inside comprises the friction of cylindrical roller end face and lasso rib, the friction between cylindrical roller and retainer and other frictions; And the friction between cylindrical roller and retainer is divided into cylindrical roller rolling surface and the friction between retainer fenestra and fore shaft and the friction between cylindrical roller end face and retainer fenestra rib face.
Traditional cylinder roller bearing retainer is designed to fenestra crossbeam internal diameter direction and external diameter direction all arranges fore shaft, and between such roller rolls surface and retainer crossbeam and fore shaft, friction area more greatly and more difficult formation lubricating film, and frictional heat produces thus.On the other hand, retainer fenestra rib face is designed to plane, all produces with retainer and rub within the scope of the whole end face diameter of such roller, produces heat larger.The temperature rise that these frictions cause all governs the High Rotation Speed of roller bearing.
Summary of the invention
In order to solve problems of the prior art, the purpose of this utility model is to provide a kind of retainer.
In order to realize foregoing invention object, the utility model adopts technological scheme as described below:
A kind of retainer, comprise two ribs and window crossbeam, two ribs are along the circumferential direction fixed together by window crossbeam, the fenestra for installing cylindrical roller is formed between adjacent window apertures crossbeam, on the upper-end surface of window crossbeam, broad ways is provided with fore shaft, the upper-end surface of window crossbeam also offers groove along its length, and groove is through fore shaft, and the rib of fenestra both sides is respectively arranged with boss; The inner ring of described two ribs is respectively equipped with annular retaining ring, the inward flange of annular retaining ring is along the circumferential direction laid with some breach, described window crossbeam center side place offers the center hole running through bi-side, be provided with roller bearing in center hole and roller bearing freely can rotate in center hole, the two ends of roller bearing are connected in blind hole that the both ends of the surface of the cylindrical roller be arranged in fenestra are offered.
Further, a side of described boss is concordant with the inner ring edge of rib, and another corresponding side is positioned at the center of rib side.
Owing to have employed technique scheme, the utility model has following superiority:
1, the upper-end surface only on fenestra crossbeam arranges fore shaft, lower end surface does not arrange fore shaft, increase inside configuration space, ensure that the oiling agent in roller and retainer fenestra gap is sufficient, be convenient to form lubricant film, improve greasy property, reduce the generation of frictional heat;
2, two corresponding boss are set on the side of fenestra both sides rib, make the contact of roller end face only center very zonule and rib side, and avoid the contact of the high roller end face edge of linear velocity and retainer rib side, reduce the area of contact of retainer rib and roller end face, improve greasy property, reduce the generation of frictional heat;
3, on window crossbeam, offer groove, increase inner space, and effectively can store lubricating grease, temperature rise can be reduced by efficiently radiates heat;
4, the utility model is by arranging annular retaining ring and offering breach thereon, achieves and stops that lubricant oil is slipped away and stores the dual functions of lubricant oil, thus ensure that the sufficient lubrication of bearing roller and bearing inner race contact position;
5, by the roller bearing in the center hole of window crossbeam and the cylindrical roller close contact in the fenestra of both sides, change the sliding friction between original cylindrical roller and window crossbeam into rolling friction between cylindrical roller and roller bearing, reduce surface friction drag, extend the working life of bearing, improve the working efficiency of bearing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-boss; 2-fore shaft; 3-groove; 4-rib; 5-window crossbeam; 6-roller bearing; 7-annular retaining ring; 8-breach.
Embodiment
As shown in Figure 1, a kind of retainer, comprise two ribs 4 and window crossbeam 5, two ribs 4 are along the circumferential direction fixed together by window crossbeam 5, form the fenestra for installing cylindrical roller between adjacent window apertures crossbeam 5, on the upper-end surface of window crossbeam 5, broad ways is provided with fore shaft 2, and the upper-end surface of window crossbeam 5 also offers groove 3 along its length, and groove 3 is through fore shaft 2, and the rib 4 of fenestra both sides is respectively arranged with boss 1; The inner ring of described two ribs 4 is respectively equipped with annular retaining ring 7, the inward flange of annular retaining ring 7 is along the circumferential direction laid with some breach 8, described window crossbeam 5 center side place offers the center hole running through bi-side, be provided with roller bearing 6 in center hole and roller bearing 6 freely can rotate in center hole, the two ends of roller bearing 6 are connected in blind hole that the both ends of the surface of the cylindrical roller be arranged in fenestra are offered.
One side of described boss 1 is concordant with the inner ring edge of rib 4, and another corresponding side is positioned at the center of rib side, and the line of centres of two boss and the longitudinal center line of roller are located along the same line; When such design makes roller rotate, the surface of contact of end face and retainer reduces greatly, surface of contact is only very little centered by roller end face center of circle circle, and the edge of end face, the higher annular region of linear velocity then not with retainer rib contacts side surfaces, the design of boss greatly reduces area of contact, improves greasy property, reduces the generation of frictional heat.
Groove 3 is offered in the upper-end surface of window crossbeam, bearing retainer when running up is made to store lubricating grease, this retainer is applicable to outer pilot bearing, such design makes retainer external diameter and outer ring raceway more easily form lubricant film, and increase inner space, be conducive to heat radiation, reduce temperature rise, improve bearing limit speed.
Retainer window crossbeam comprises the groove 3 that fore shaft opens several angle, bearing retainer when running up is made to store lubricating grease, this retainer is applicable to outer pilot bearing, such design makes retainer external diameter and outer ring raceway more easily form lubricant film, and increase inner space, be conducive to heat radiation, reduce temperature rise, improve bearing limit speed.
Rib 4 arranges annular retaining ring 7, and along the circumferential direction offer breach 8 on annular retaining ring 7, can realize stopping that lubricant oil is slipped away and stores the dual functions of lubricant oil, thus ensure that the sufficient lubrication of bearing roller and bearing inner race contact position.
In addition, by the cylindrical roller close contact in the roller bearing in the center hole of window crossbeam and both sides fenestra, change the sliding friction between original cylindrical roller and window crossbeam into rolling friction between cylindrical roller and roller bearing, reduce surface friction drag, extend the working life of bearing, improve the working efficiency of bearing.
In sum, because special construction of the present utility model is arranged, improve greasy property and the limit speed of roller bearing, be applicable to High-Speed Cylindrical Roller Bearing.
Claims (2)
1. a retainer, comprise two ribs and window crossbeam, two ribs are along the circumferential direction fixed together by window crossbeam, the fenestra for installing cylindrical roller is formed between adjacent window apertures crossbeam, it is characterized in that: on the upper-end surface of window crossbeam, broad ways is provided with fore shaft, the upper-end surface of window crossbeam also offers groove along its length, and groove is through fore shaft, and the rib of fenestra both sides is respectively arranged with boss; The inner ring of described two ribs is respectively equipped with annular retaining ring, the inward flange of annular retaining ring is along the circumferential direction laid with some breach, described window crossbeam center side place offers the center hole running through bi-side, be provided with roller bearing in center hole and roller bearing freely can rotate in center hole, the two ends of roller bearing are connected in blind hole that the both ends of the surface of the cylindrical roller be arranged in fenestra are offered.
2. retainer according to claim 1, is characterized in that: a side of described boss is concordant with the inner ring edge of rib, and another corresponding side is positioned at the center of rib side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595258.6U CN204239477U (en) | 2014-10-15 | 2014-10-15 | A kind of retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595258.6U CN204239477U (en) | 2014-10-15 | 2014-10-15 | A kind of retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239477U true CN204239477U (en) | 2015-04-01 |
Family
ID=52768977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420595258.6U Expired - Fee Related CN204239477U (en) | 2014-10-15 | 2014-10-15 | A kind of retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239477U (en) |
-
2014
- 2014-10-15 CN CN201420595258.6U patent/CN204239477U/en not_active Expired - Fee Related
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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: 20150401 Termination date: 20151015 |
|
| EXPY | Termination of patent right or utility model |