CN2775378Y - Double K value double circular and ball pocket wave shape bearing holder - Google Patents
Double K value double circular and ball pocket wave shape bearing holder Download PDFInfo
- Publication number
- CN2775378Y CN2775378Y CN 200520029786 CN200520029786U CN2775378Y CN 2775378 Y CN2775378 Y CN 2775378Y CN 200520029786 CN200520029786 CN 200520029786 CN 200520029786 U CN200520029786 U CN 200520029786U CN 2775378 Y CN2775378 Y CN 2775378Y
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- ball pocket
- cambered
- cambered surface
- ball
- center
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Abstract
The utility model discloses a double-K value, double-circular arc ball pocket and wave-shaped bearing holder which is formed by the butt joint and the riveting of two holders provided with symmetrical ball pocket cambered surfaces, wherein each symmetrical ball pocket cambered surface of the ball pocket is composed of two crossed cambered surfaces, distance between the cambered top of one cambered surface to the center of the ball pocket is unequal to the distance between the cambered top of the other cambered surface to the center of the ball pocket, the two cambered surfaces are the cambered surfaces which are outwards protruded corresponding to the center of the ball pocket and the two cambered surfaces are crossed in the way of smooth transition. When a steel ball is fallen, the bearing holder designed by the utility model can be transitioned and rolled to a deeper cambered surface from the shallower cambered surface of the ball pocket through a smooth crossed junction part and can not directly impact a cross beam part of the bearing holder, and thus, impact noise is reduced; as the steel ball comes in contact with the smooth crossed part between the two crossed cambered surfaces for a long time, friction force is smaller and the opportunities of generating noise decibel and unusual sound are reduced. In addition, a certain amount of lubricating oil can be stored in the deeper cambered surface of the symmetrical ball pocket cambered surfaces, a lubricating effect is raised and the quality service life of a bearing is extended.
Description
Technical field
The utility model relates to bearing cage, particularly a kind of shape wave bearing cage of ball bearing.
Background technique
Bearing is as a kind of mechanical common part, and kind is a lot, and ball bearing wherein generally is to be made of inner and outer ring, steel ball, retainer.Steel ball is located between inner ring and the outer ring as the rolling element supporting element, and is evenly distributed around the lasso circumference, and retainer is located between inner ring and the outer ring, can evenly distribute around the circumference of lasso to keep above-mentioned steel ball.
One type retainer is called as wave-shaped retainer, this wave-shaped retainer generally is to be made of two ringwise steel ring butt joint riveteds, the circumference of edge ring is evenly distributed with and can holds the ball pocket that steel ball is inserted and rotated, steel ball places in each ball pocket of retainer and is supported between the Internal and external cycle, exists certain play to rotate for steel ball between ball pocket and the steel ball.When rotating with inner ring, around the revolution of the axle center of bearing, retainer revolves round the sun around the axle center under the drive of steel ball together in the time of the steel ball rotation in the outer ring of bearing.
The method that the ball pocket of the existing wave-shaped retainer of China is continued to use sphere containing steel ball always manufactures and designs, adopt the cambered surface butt joint of two symmetries to form, its cambered surface can be just round or oval, the joint of cambered surface is called as crossbeam, any one arc top of the symmetrical cambered surface of ball pocket is decided to be K with the distance at ball pocket center, and the K value is larger than the radius of steel ball to form play.Bearing is when rotating, when the play of ball pocket is big, when rotating, steel ball can directly clash into crossbeam, produce bigger noise, when steel ball is big, the area of contact of steel ball and retainer ball pocket is bigger, surface friction drag is bigger, also can produce bigger noise, for reducing the noise that collides or rub and produced between steel ball and the retainer, the at present employing dwindled mould shaping ball size more, reduce product ball pocket play, approach such as lubricating oil filling, and after ball size and ball pocket play dwindle, the accuracy of manufacturing of retainer will correspondingly improve, mould manufacturing dimension accumulation coaxiality error, vertical error, the centromere circular error, chord length error between the ball pocket, the mismatch error of rivet and retainer etc. just is easy to cause bearing " to turn round ineffective " or produces different sound, and therefore the production up-to-standard rate of this retainer is very low.This in addition symmetry just circle or the retainer ball pocket internal surface of elliptical arc surface is smooth, can not accumulate lubricant oil, and bearing working is after a period of time, and lubricant oil can very fast volatilization runs off and do not have lubrication.
The model utility content
The utility model purpose is to provide a kind of impact noise and friction noise, two K values of high lubricating effect, two circular arc ball pocket shape wave bearing cage of reducing.
The technical solution of the utility model is: a kind of pair of K value, two circular arc ball pocket shape wave bearing cage, fixedly constitute by two retainer butt joint riveteds with symmetrical ball pocket cambered surface, the symmetrical ball pocket of each of described ball pocket cambered surface all is to be intersected by the cambered surface that two arc apex distances do not wait from ball pocket center to form, two cambered surfaces are the cambered surface with respect to ball pocket center evagination, and the intersection of two cambered surfaces is that smooth excessiveness intersects.
The arc top of two cambered surfaces of the symmetrical ball pocket of described formation cambered surface overlaps with the line at ball pocket center, and the arc apex distance is positioned at the arc top place of arc apex distance from the nearer cambered surface in ball pocket center from ball pocket center cambered surface far away.
Two of described formation ball pocket cambered surface intersects cambered surface and is elliptical arc surface.
Effect of the present utility model and advantage are: the bearing cage that the utility model is designed, the symmetrical cambered surface of its ball pocket is to be intersected by two arc apex distances cambered surface different from ball pocket center to form, these two cambered surfaces since the arc apex distance from ball pocket center apart from difference and depth difference, when bearing rotates, when the interior steel ball of ball pocket falls along the Internal and external cycle raceway, steel ball can excessively be rolled to dark cambered surface from more shallow cambered surface through level and smooth crossing connecting part, excessively be rolled to more shallow cambered surface by dark cambered surface through level and smooth crossing connecting part again, and can directly not strike the header portion of bearing cage, momentum during the steel ball motion is decomposed in rolling gradually, make steel ball not hold the header portion of retainer, thereby reduced impact noise with big impulse force impact groove; And because steel ball is excessively to move about back and forth between two cambered surfaces when rolling, therefore the steel ball most of the time is to contact with the two level and smooth intersection that intersect between the cambered surface, therefore area of contact is less, and frictional force is less, has reduced the chance that noise decibel and different sound produce.
In addition, because the dark cambered surface on the arc of symmetrical ball pocket cambered surface top is positioned at the place, arc top of more shallow cambered surface, so just formed place depression at the place, arc top of symmetrical ball pocket, this place's depression can be stored certain lubricant oil, when steel ball rotates, just can improve lubrication effect, thereby prolong the quality life-span of bearing from this by being stained with oil, scraping oil form and constantly lubricated.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A profile stretch-out view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 2.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the bearing cage that the utility model is designed, the retainer 1,2 of two symmetries is connected as one by rivet 3, forms along equally distributed eight the ball pockets 4 of circumference between two retainers 1,2, and the bound fraction of two retainers is a crossbeam 6 on ball pocket 4 inwalls.As Fig. 2, shown in Figure 3, the cross section of each ball pocket 4 is to be intersected by the different ellipse of K value to form, the K value is pushed up the distance of ball pocket center O for the arc of the symmetrical cambered surface of ball pocket, the K value of two ellipses is respectively K1 and K2, the gap of K1 and K2 is small, therefore two oval intersections are level and smooth relation line 5, because K2 is greater than K1, in addition, the arc top of two ellipses overlaps with the line at ball pocket center, so the K2 elliptical arc surface that just outwards caves in and become darker at the place, arc top of the K1 of ball pocket 4 elliptical arc surface, so ball pocket 4 just has two K values differences, the elliptical arc surface that intersects can contact with steel ball.
When real work, bearing adopts the designed bearing cage of the utility model, when bearing rotates, steel ball in the ball pocket 4 is when the Internal and external cycle raceway falls, steel ball touches the more shallow elliptical arc surface K1 of ball pocket 4 earlier, then along entering darker elliptical arc surface K2 after excessively, and can directly not strike the header portion 6 of bearing cage, reduce impact noise through the relation line cambered surface; And because steel ball is to move about back and forth between two elliptical arc surfaces when rolling, therefore the steel ball most of the time is to contact with the two relation line cambered surfaces that intersect between the elliptical arc surface, therefore area of contact is less, and frictional force is less, has reduced the chance that noise decibel and different sound produce.
In addition, because place, the arc top of elliptical arc surface K1 depression has darker elliptical arc surface K2, so can store certain lubricant oil herein, when steel ball rotates, when extremely coming and going between the darker elliptical arc surface by relation line, can form and be stained with oil, scrape oil form and constantly lubricated, improve lubrication effect, thereby prolonged the working life of bearing.
Claims (3)
1, a kind of pair of K value, two circular arc ball pocket shape wave bearing cage, fixedly constitute by two retainer butt joint riveteds with symmetrical ball pocket cambered surface, it is characterized in that: the symmetrical ball pocket of each of described ball pocket cambered surface all is to be intersected by the cambered surface that two arc apex distances do not wait from ball pocket center to form, two cambered surfaces are the cambered surface with respect to ball pocket center evagination, and the intersection of two cambered surfaces is that smooth excessiveness intersects.
2, bearing cage according to claim 1, it is characterized in that: the arc top of two cambered surfaces of the symmetrical ball pocket of described formation cambered surface overlaps with the line at ball pocket center, and the arc apex distance is positioned at the arc top place of arc apex distance from the nearer cambered surface in ball pocket center from ball pocket center cambered surface far away.
3, bearing cage according to claim 1 and 2 is characterized in that: two of described formation ball pocket cambered surface intersects cambered surface and is elliptical arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029786 CN2775378Y (en) | 2005-01-14 | 2005-01-14 | Double K value double circular and ball pocket wave shape bearing holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029786 CN2775378Y (en) | 2005-01-14 | 2005-01-14 | Double K value double circular and ball pocket wave shape bearing holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2775378Y true CN2775378Y (en) | 2006-04-26 |
Family
ID=36749694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520029786 Expired - Fee Related CN2775378Y (en) | 2005-01-14 | 2005-01-14 | Double K value double circular and ball pocket wave shape bearing holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2775378Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889302A (en) * | 2012-10-24 | 2013-01-23 | 洛阳轴研科技股份有限公司 | Method for designing two arc surfaces on inner diameter end face of retainer |
| CN113062925A (en) * | 2021-03-02 | 2021-07-02 | 山东金帝精密机械科技股份有限公司 | Oval retainer for deep groove ball bearing and production method thereof |
| CN114962450A (en) * | 2022-03-21 | 2022-08-30 | 华中科技大学 | Synchronous vibration suppression method and system for magnetic suspension rotor system, storage medium and terminal |
-
2005
- 2005-01-14 CN CN 200520029786 patent/CN2775378Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889302A (en) * | 2012-10-24 | 2013-01-23 | 洛阳轴研科技股份有限公司 | Method for designing two arc surfaces on inner diameter end face of retainer |
| CN102889302B (en) * | 2012-10-24 | 2014-11-05 | 洛阳轴研科技股份有限公司 | Method for designing two arc surfaces on inner diameter end face of retainer |
| CN113062925A (en) * | 2021-03-02 | 2021-07-02 | 山东金帝精密机械科技股份有限公司 | Oval retainer for deep groove ball bearing and production method thereof |
| CN114962450A (en) * | 2022-03-21 | 2022-08-30 | 华中科技大学 | Synchronous vibration suppression method and system for magnetic suspension rotor system, storage medium and terminal |
| CN114962450B (en) * | 2022-03-21 | 2023-06-16 | 华中科技大学 | Synchronous vibration suppression method and system for magnetic suspension rotor system, storage medium and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |