CN113236674A - Novel high-rotating-speed ball bearing retainer - Google Patents
Novel high-rotating-speed ball bearing retainer Download PDFInfo
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- CN113236674A CN113236674A CN202110584832.2A CN202110584832A CN113236674A CN 113236674 A CN113236674 A CN 113236674A CN 202110584832 A CN202110584832 A CN 202110584832A CN 113236674 A CN113236674 A CN 113236674A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/42—Ball cages made from wire or sheet metal strips
- F16C33/422—Ball cages made from wire or sheet metal strips made from sheet metal
- F16C33/425—Ball cages made from wire or sheet metal strips made from sheet metal from a single part, e.g. ribbon cages with one corrugated annular part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention provides a novel high-speed ball bearing retainer, which comprises: the rolling cage comprises a plurality of cage bodies, a plurality of rolling bodies, a flow guide part, a lubricating part and a reinforcing part; each retainer body is used for positioning the rolling bodies, enabling the rolling bodies to rotate stably and reducing vibration, and each retainer body is wrapped by two rolling bodies; the plurality of retainer bodies are circumferentially connected end to end; the flow guide part actively regulates and controls a flow field through the retainer body and guides the lubricating oil to the easily worn area; the guide part comprises a first guide vane and a second guide vane which are respectively arranged in contact with the rolling body; a lubricating part which forms an oil film on the surface of the rolling body and reduces the friction between the rolling body and the retainer body; the reinforcing part is used for reinforcing the structural strength of the retainer body and reducing the probability of fracture failure of the retainer body. The invention can improve the strength of the retainer, avoid fracture failure and facilitate lubrication and heat dissipation.
Description
Technical Field
The invention belongs to the field of ball bearings, and particularly relates to a novel high-rotation-speed ball bearing retainer.
Background
The bearing is a core component of heavy equipment such as an aircraft engine, a high-speed railway, an electric automobile and the like. Ball bearings generally consist of an inner ring, an outer ring, a cage and rolling elements. Wherein the main function of the bearing cage is to evenly space the rolling bodies. Without a bearing cage, the adjacent rolling elements would rotate causing wear due to the high relative sliding velocity at the contact.
Currently, a bearing retainer can be largely divided into a two-piece riveted retainer and a one-piece crown retainer. Along with the continuous improvement of the rotating speed, the bearing retainer is easy to break and lose efficacy, and the high rotating speed can cause the increase of the heating value of the bearing, the aggravation of temperature rise and the increase of heat dissipation energy consumption. In addition, for the bearing adopting the oil injection lubrication mode, under the condition of high rotating speed, an air curtain effect can be generated in the bearing cavity, so that lubricating oil is difficult to enter the bearing cavity, and the bearing is lack of lubrication to cause failure. The two-piece riveting retainer is difficult to mount, and the one-piece crown-shaped retainer is asymmetrically mounted in a bearing, so that the retainer is unstable in the operation process and is easy to break at the root of the retainer.
Disclosure of Invention
The invention aims to provide a novel high-speed ball bearing retainer to solve the problems.
In order to achieve the purpose, the invention provides the following scheme: a novel high speed ball bearing cage comprising: the rolling cage comprises a plurality of cage bodies, a plurality of rolling bodies, a flow guide part, a lubricating part and a reinforcing part; wherein the content of the first and second substances,
each cage body is used for positioning the rolling bodies, enabling the rolling bodies to rotate stably and reducing vibration, and each cage body is wrapped by two rolling bodies; the plurality of retainer bodies are circumferentially connected end to end;
the flow guide part actively regulates and controls a flow field through the retainer body and guides lubricating oil to the easily worn area; the guide part comprises a first guide vane and a second guide vane which are respectively arranged in contact with the rolling body;
the lubricating part forms an oil film on the surface of the rolling element to reduce the friction between the rolling element and the retainer body;
the reinforcing part is used for reinforcing the structural strength of the retainer body and reducing the probability of fracture failure of the retainer body.
Preferably, the retainer body is provided with a first ball pocket and a second ball pocket, the center of the first ball pocket and the center of the second ball pocket are concentrically arranged, and the first ball pocket and the second ball pocket are respectively matched with the rolling body.
Preferably, the first guide vane is disposed above one of the first ball pockets, and the second guide vane is disposed below the second ball pocket.
Preferably, a fourth flow guide groove and a third flow guide convex surface are arranged on the end surface of the first flow guide vane, the fourth flow guide groove is arranged close to the first ball pocket hole, and the third flow guide convex surface is arranged far away from the first ball pocket hole;
and a fifth diversion groove, a fourth diversion convex surface, a sixth diversion groove and a top groove are sequentially connected to the upper part of the first diversion blade along the end surface direction, and the top groove is arranged at the top of the retainer body.
Preferably, the end surface of the second guide vane is provided with a first guide groove and a first guide convex surface, the first guide groove is arranged close to the second ball pocket hole, and the first guide convex surface is arranged far away from the second ball pocket hole;
and a second diversion groove, a second diversion convex surface, a third diversion groove and a bottom groove are sequentially connected to the lower part of the second diversion blade along the end surface direction, and the bottom groove is formed in the bottom of the retainer body.
Preferably, the lubrication part comprises a first lubrication groove and a second lubrication groove, the first lubrication groove and the second lubrication groove are respectively formed in inner side surfaces of the first ball pocket and the second ball pocket, and the inner side surfaces are contact surfaces of the rolling body and the retainer body;
the first lubricating oil groove and the second lubricating oil groove respectively comprise at least three oval grooves, and all the oval grooves are arranged at equal intervals along the circumferential direction of the first ball pocket and the second ball pocket.
Preferably, the reinforcing part comprises a first reinforcing pocket bottom and a second reinforcing pocket bottom, the first reinforcing pocket bottom is arranged below the first ball pocket hole, the second reinforcing pocket bottom is arranged above the second ball pocket hole, a first side arm is connected between one end of the first reinforcing pocket bottom and one end of the second reinforcing pocket bottom, and the other end of the second reinforcing pocket bottom is connected with a second side arm;
the first guide vane is fixedly connected with the first side arm, and the second guide vane is fixedly connected with the second side arm.
Preferably, the radial thickness of the middle parts of the first reinforcing pocket bottom and the second reinforcing pocket bottom along the ball bearing is 1/9-1/10 of the diameter of the rolling element, and the thickness of the two ends of the first reinforcing pocket bottom and the second reinforcing pocket bottom along the radial direction of the ball bearing is smaller than the thickness of the middle parts.
Preferably, the first ball pocket and the second ball pocket respectively wrap at least 3/4 the rolling bodies.
Preferably, the first flow guiding groove and the fourth flow guiding groove have the same curvature.
The invention has the following technical effects: the retainer body is used for positioning the rolling body, so that the rolling body can stably rotate and reduce vibration; the flow guide part can improve the heat dissipation rate on one hand, and can actively regulate and control the flow field through the retainer body on the other hand, so that the lubricating oil is guided to the high-temperature area of the component, the lubricating flow and the oil stirring loss caused by shearing oil are reduced, the power consumption is reduced, meanwhile, the failure of the ball bearing under the high-rotating-speed working condition due to insufficient lubrication is reduced, and the service life of the ball bearing is prolonged; the lubricating oil groove can enable a thin oil film to be formed between the retainer and the ball, so that lubrication is increased, friction between the rolling body and the retainer body is reduced, dynamic pressure support is formed, the rolling body runs stably, and jumping is reduced; the reinforcing part can strengthen the strength of the area, reduce the probability of fracture failure and prolong the service life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of a cage construction;
FIG. 2 is a schematic view of a cage body;
FIG. 3 is a schematic view of the rolling element and cage assembly;
wherein, 1, a first ball pocket; 2. a second ball pocket; 3. a first guide vane; 4. a second guide vane; 5. a first side arm; 6. a second side arm; 7. a first lubricating oil groove; 8. a second lubrication groove; 9. a first reinforced pocket bottom; 10. a second reinforced pocket bottom; 11. a first flow guide groove; 12. a first flow guide convex surface; 13. a second flow guide groove; 14. a second flow guiding convex surface; 15. a third flow guide groove; 16. a fourth diversion groove; 17. a third flow guiding convex surface; 18. a fifth diversion groove; 19. a fourth flow guide convex surface; 20. a sixth diversion groove; 21. a top groove; 22. a lateral convex surface; 23. a bottom groove; 24. a cage body; 25. and a rolling body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1 to 3, the present invention provides a novel high-speed ball bearing cage, including: a plurality of cage bodies 24, a plurality of rolling bodies 25, a flow guide part, a lubricating part and a reinforcing part; wherein the content of the first and second substances,
each cage body 24 is used for positioning the rolling bodies 25, enabling the rolling bodies 25 to rotate stably and reducing vibration, and each cage body 24 is half wrapped on two rolling bodies 25; the plurality of retainer bodies 24 are circumferentially connected end to end;
the flow guide part actively regulates and controls a flow field through the retainer body 24 and guides lubricating oil to the easy-wear area; the guide part comprises a first guide vane 3 and a second guide vane 4 which are respectively contacted with the rolling body 25;
the lubrication unit reduces friction between the rolling element 25 and the cage body 24 by forming an oil film on the surface of the rolling element 25;
the reinforcing portion is used for reinforcing the structural strength of the retainer body 24 and reducing the probability of fracture failure of the retainer body 24. The retainer body 24 is used for positioning the rolling body 25, so that the rolling body 25 stably rotates and reduces vibration; the flow guide part can improve the heat dissipation rate on one hand, and can actively regulate and control the flow field through the retainer body 24 on the other hand, so that lubricating oil is guided to a high-temperature region of a component, the lubricating flow and the oil stirring loss caused by oil shearing are reduced, the power consumption is reduced, meanwhile, the failure of the ball bearing under the high-rotating-speed working condition due to insufficient lubrication is reduced, and the service life of the ball bearing is prolonged; the lubricating oil groove can form a thin oil film between the retainer and the ball, so that lubrication is increased, friction between the rolling body 25 and the retainer body 24 is reduced, dynamic pressure support is formed, the rolling body 25 runs stably, and run-out is reduced; the reinforcing part can reinforce the strength of the area, reduce the probability of fracture failure and prolong the service life.
According to a further optimization scheme, the retainer body 24 is provided with a first ball pocket 1 and a second ball pocket 2, the center of the first ball pocket 1 and the center of the second ball pocket 2 are concentrically arranged, and the first ball pocket 1 and the second ball pocket 2 are respectively matched with the rolling body 25.
In a further optimized scheme, the first guide vane 3 is arranged above the first ball pocket 1, and the second guide vane 4 is arranged below the second ball pocket 2.
In a further optimized scheme, a fourth flow guiding groove 16 and a third flow guiding convex surface 17 are arranged on the end surface of the first flow guiding vane 3, the fourth flow guiding groove 16 is arranged close to the first ball pocket 1, and the third flow guiding convex surface 17 is arranged far away from the first ball pocket 1;
a fifth diversion groove 18, a fourth diversion convex surface 19, a sixth diversion groove 20 and a top groove 21 are sequentially connected to the upper portion of the first diversion blade 3 along the end face direction, and the top groove 21 is formed in the top of the retainer body 24. The fourth diversion groove 16 guides the lubricating oil out of the bearing cavity and takes away heat generated by the bearing.
In a further optimization scheme, a first flow guide groove 11 and a first flow guide convex surface 12 are arranged on the end surface of the second flow guide vane 4, the first flow guide groove 11 is arranged close to the second ball pocket 2, and the first flow guide convex surface 12 is arranged far away from the second ball pocket 2;
a second diversion groove 13, a second diversion convex surface 14, a third diversion groove 15 and a bottom groove 23 are sequentially connected to the lower portion of the second diversion blade 4 along the end face direction, and the bottom groove 23 is formed in the bottom of the retainer body 24. The first flow guide groove 11 plays a role in guiding the lubricating oil sprayed into the bearing to the surface of the rolling body and dissipating heat of a rolling channel in the bearing; smooth curved surface transition is carried out between the first flow guide convex surface 12 and the second flow guide groove 13, so that the effect of eliminating an air curtain effect is achieved, negative pressure is formed in a ball bearing cavity, and lubricating oil smoothly enters the ball bearing cavity; the curvature radiuses of the top groove 21 and the bottom groove 23 can be set according to the change of the ball bearing limit rotating speed, and the weight of the retainer can be reduced by adopting the groove shape.
In a further optimized scheme, the lubrication part comprises a first lubrication oil groove 7 and a second lubrication oil groove 8, the first lubrication oil groove 7 and the second lubrication oil groove 8 are respectively arranged on inner side surfaces of the first ball pocket 1 and the second ball pocket 2, and the inner side surfaces are contact surfaces of the rolling elements 25 and the retainer body 24;
the first lubricating oil groove 7 and the second lubricating oil groove 8 respectively comprise at least three oval grooves, and all the oval grooves are circumferentially arranged at equal intervals along the first ball pocket 1 and the second ball pocket 2. The number and the size of the oval grooves can be set according to the change of the ball bearing limit rotating speed, so that a thin oil film is formed between the retainer body 24 and the rolling body 25, lubrication is increased, the friction between the rolling body 25 and the retainer body 24 is reduced, dynamic pressure support is formed at the same time, the ball runs stably, and the bounce is reduced.
According to a further optimized scheme, the reinforcing part comprises a first reinforcing pocket bottom 9 and a second reinforcing pocket bottom 10, the first reinforcing pocket bottom 9 is arranged below the first ball pocket 1, the second reinforcing pocket bottom 10 is arranged above the second ball pocket 2, a first side arm 5 is connected between one end of the first reinforcing pocket bottom 9 and one end of the second reinforcing pocket bottom 10, and a second side arm 6 is connected to the other end of the second reinforcing pocket bottom 10;
the first guide vane 3 is fixedly connected with the first side arm 5, and the second guide vane 4 is fixedly connected with the second side arm 6.
In a further optimized scheme, the radial thickness of the middle parts of the first reinforcing pocket bottom 9 and the second reinforcing pocket bottom 10 along the ball bearing is 1/9-1/10 of the diameter of the rolling body 25, and the thickness of the two ends of the first reinforcing pocket bottom 9 and the second reinforcing pocket bottom 10 along the radial direction of the ball bearing is smaller than the thickness of the middle parts.
In a further preferred embodiment, the first ball pocket 1 and the second ball pocket 2 respectively enclose 3/4 at least the rolling elements 25.
In a further optimized scheme, the first diversion groove 11 and the fourth diversion groove 16 have the same curvature.
According to a further optimization scheme, the outer surfaces of the first guide vane 3, the second guide vane 4, the first side arm 5, the second side arm 6, the first reinforcing pocket bottom 9 and the second reinforcing pocket bottom 10 are respectively smooth curved surfaces and are in smooth transition.
In a further optimized scheme, a side convex surface 22 is respectively arranged on one side of the first side arm 5 axially close to the first reinforced pocket bottom 9 and one side of the second side arm 6 axially close to the second reinforced pocket bottom 10.
Further optimize the scheme, first ball pocket 1, first water conservancy diversion blade 3, first side arm 5, first lubricant duct 7, first strengthen the pocket bottom 9, fourth water conservancy diversion recess 16, third water conservancy diversion convex surface 17, fifth water conservancy diversion recess 18, fourth water conservancy diversion convex surface 19, sixth water conservancy diversion recess 20, top recess 21, with second ball pocket 2, second water conservancy diversion blade 4, second side arm 6, second lubricant duct 8, second strengthen the pocket bottom 10, first water conservancy diversion recess 11, first water conservancy diversion convex surface 12, second water conservancy diversion recess 13, second water conservancy diversion convex surface 14, third water conservancy diversion recess 15, bottom recess 23 the structure is the same.
The working process of the embodiment is as follows: when the ball bearing runs at a high speed, the first guide vanes 3, the second guide vanes 4 and the guide part can improve the heat dissipation rate on one hand, and can actively regulate and control the flow field through the retainer body 24 on the other hand, so that lubricating oil is guided to a high-temperature region of a component, the lubricating flow and the oil stirring loss caused by oil shearing are reduced, the power consumption is reduced, meanwhile, the failure of the ball bearing under the high-speed working condition due to insufficient lubrication is reduced, and the service life of the ball bearing is prolonged; the cage body 24, the first reinforcing pocket bottom 9 and the second reinforcing pocket bottom 10 can reinforce the strength of the region, reduce the probability of fracture failure and prolong the service life; the lubricating oil groove can form a thin oil film between the retainer and the ball, increase lubrication, reduce friction between the rolling body 25 and the retainer body 24, and form dynamic pressure support, so that the rolling body 25 operates stably and reduces run-out. The side convex surfaces 22 can strengthen the structural strength of the region, improve the fatigue resistance and reduce the fracture incidence. The curvature radius of the top groove 21 can be set according to the change of the ball bearing limit rotating speed, and the weight of the retainer can be reduced by adopting the groove shape. And smooth curved surface transition is carried out between the first flow guide convex surface 12 and the second flow guide groove 13, so that the effect of eliminating the air curtain effect is achieved, negative pressure is formed in the ball bearing cavity, and lubricating oil smoothly enters the ball bearing cavity.
The retainer has the characteristic of completely symmetrical structure, the unstable condition caused by the asymmetrical structure of the retainer in operation is avoided, and the retainer has the advantages of stable motion and small vibration.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. A novel high rotational speed ball bearing retainer, characterized by, includes: the rolling cage comprises a plurality of cage bodies (24), a plurality of rolling bodies (25), a flow guide part, a lubricating part and a reinforcing part; wherein the content of the first and second substances,
each cage body (24) is used for positioning the rolling bodies (25), enabling the rolling bodies (25) to rotate stably and reducing vibration, and each cage body (24) is wrapped by two rolling bodies (25) in a half wrapping mode; the plurality of retainer bodies (24) are circumferentially connected end to end;
the flow guide part actively regulates and controls a flow field through the retainer body (24) and guides lubricating oil to the easily worn area; the flow guide part comprises a first flow guide blade (3) and a second flow guide blade (4) which are respectively in contact with the rolling body (25);
the lubrication part forms an oil film on the surface of the rolling element (25) and reduces friction between the rolling element (25) and the cage body (24);
the reinforcing part is used for reinforcing the structural strength of the retainer body (24) and reducing the probability of fracture failure of the retainer body (24).
2. The new high speed ball bearing cage of claim 1 wherein: the ball retainer is characterized in that a first ball pocket (1) and a second ball pocket (2) are formed in the retainer body (24), the center of the first ball pocket (1) and the center of the second ball pocket (2) are arranged in a concentric circle mode, and the first ball pocket (1) and the second ball pocket (2) are respectively matched with the rolling body (25).
3. The new high speed ball bearing cage of claim 2 wherein: the first guide vane (3) is arranged above the first ball pocket (1), and the second guide vane (4) is arranged below the second ball pocket (2).
4. The new high speed ball bearing cage of claim 3, wherein: a fourth flow guiding groove (16) and a third flow guiding convex surface (17) are arranged on the end surface of the first flow guiding vane (3), the fourth flow guiding groove (16) is arranged close to the first ball pocket (1), and the third flow guiding convex surface (17) is arranged far away from the first ball pocket (1);
a fifth diversion groove (18), a fourth diversion convex surface (19), a sixth diversion groove (20) and a top groove (21) are sequentially connected to the upper portion of the first diversion blade (3) along the end face direction, and the top groove (21) is formed in the top of the retainer body (24).
5. The new high speed ball bearing cage of claim 4 wherein: a first flow guide groove (11) and a first flow guide convex surface (12) are arranged on the end surface of the second flow guide vane (4), the first flow guide groove (11) is arranged close to the second ball pocket (2), and the first flow guide convex surface (12) is arranged far away from the second ball pocket (2);
the lower part of the second guide vane (4) is sequentially connected with a second guide groove (13), a second guide convex surface (14), a third guide groove (15) and a bottom groove (23) along the end surface direction, and the bottom groove (23) is formed in the bottom of the retainer body (24).
6. The new high speed ball bearing cage of claim 4 wherein: the lubricating part comprises a first lubricating oil groove (7) and a second lubricating oil groove (8), the first lubricating oil groove (7) and the second lubricating oil groove (8) are respectively formed in the inner side surfaces of the first ball pocket hole (1) and the second ball pocket hole (2), and the inner side surfaces are contact surfaces of the rolling bodies (25) and the retainer body (24);
the first lubricating oil groove (7) and the second lubricating oil groove (8) respectively comprise at least three oval grooves, and all the oval grooves are arranged along the first ball pocket (1) and the second ball pocket (2) at equal intervals in the circumferential direction.
7. The new high speed ball bearing cage of claim 2 wherein: the reinforcing part comprises a first reinforcing pocket bottom (9) and a second reinforcing pocket bottom (10), the first reinforcing pocket bottom (9) is arranged below the first ball pocket hole (1), the second reinforcing pocket bottom (10) is arranged above the second ball pocket hole (2), a first side arm (5) is connected between one end of the first reinforcing pocket bottom (9) and one end of the second reinforcing pocket bottom (10), and the other end of the second reinforcing pocket bottom (10) is connected with a second side arm (6);
the first guide vane (3) is fixedly connected with the first side arm (5), and the second guide vane (4) is fixedly connected with the second side arm (6).
8. The new high speed ball bearing cage of claim 7 wherein: the radial thickness of the ball bearing in the middle of the first reinforced pocket bottom (9) and the second reinforced pocket bottom (10) is 1/9-1/10 of the diameter of the rolling body (25), and the radial thickness of both ends of the ball bearing in the middle of the first reinforced pocket bottom (9) and the second reinforced pocket bottom (10) is less than the thickness of the middle of the ball bearing.
9. The new high speed ball bearing cage of claim 2 wherein: the first ball pocket (1) and the second ball pocket (2) respectively wrap 3/4 the rolling bodies (25) at least.
10. The new high speed ball bearing cage of claim 5 wherein: the first flow guide groove (11) and the fourth flow guide groove (16) have the same curvature.
Priority Applications (1)
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| CN202110584832.2A CN113236674B (en) | 2021-05-27 | 2021-05-27 | Novel high-rotating-speed ball bearing retainer |
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| CN202110584832.2A CN113236674B (en) | 2021-05-27 | 2021-05-27 | Novel high-rotating-speed ball bearing retainer |
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| CN113236674B CN113236674B (en) | 2021-11-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013441A (en) * | 2022-06-06 | 2022-09-06 | 北京理工大学 | Enhanced-lubrication double-layer high-strength low-friction retainer |
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| JP2009127650A (en) * | 2007-11-20 | 2009-06-11 | Nsk Ltd | Radial rolling bearing |
| CN103518071A (en) * | 2011-05-13 | 2014-01-15 | Ntn株式会社 | Retainer for ball bearing, and ball bearing |
| JP2014092238A (en) * | 2012-11-05 | 2014-05-19 | Nsk Ltd | Thrust ball bearing |
| CN206495894U (en) * | 2017-02-28 | 2017-09-15 | 人本集团有限公司 | A kind of thrust ball bearing retainer |
| DE102017123603A1 (en) * | 2017-10-11 | 2019-04-11 | Schaeffler Technologies AG & Co. KG | Cage for a rolling bearing and ball bearings |
| CN109578439A (en) * | 2018-12-11 | 2019-04-05 | 北京理工大学 | A kind of retainer of the micro- texture structure of band |
| CN109538633A (en) * | 2018-12-21 | 2019-03-29 | 中国航发哈尔滨轴承有限公司 | Deep groove ball bearing and processing method with oilhole ribbon retainer |
| CN210949554U (en) * | 2019-10-29 | 2020-07-07 | 无锡腾达精密模塑有限公司 | Stable anti-drop bearing retainer |
| CN212803953U (en) * | 2020-08-14 | 2021-03-26 | 无锡市锡珠保持架有限公司 | Bearing retainer |
| CN213145116U (en) * | 2020-08-14 | 2021-05-07 | 无锡市锡珠保持架有限公司 | Self-aligning ball bearing retainer |
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| CN115013441A (en) * | 2022-06-06 | 2022-09-06 | 北京理工大学 | Enhanced-lubrication double-layer high-strength low-friction retainer |
| CN115013441B (en) * | 2022-06-06 | 2023-02-03 | 北京理工大学 | Enhanced-lubrication double-layer high-strength low-friction retainer |
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