CN101713435A - Bearing retainer - Google Patents
Bearing retainer Download PDFInfo
- Publication number
- CN101713435A CN101713435A CN200910310864A CN200910310864A CN101713435A CN 101713435 A CN101713435 A CN 101713435A CN 200910310864 A CN200910310864 A CN 200910310864A CN 200910310864 A CN200910310864 A CN 200910310864A CN 101713435 A CN101713435 A CN 101713435A
- Authority
- CN
- China
- Prior art keywords
- bearing
- retainer body
- bearing retainer
- groove
- outer ring
- 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.)
- Pending
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Classifications
-
- 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
- F16C33/46—Cages for rollers or needles
- F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a bearing retainer which comprises a bearing retainer body. The surfaces at two sides of the bearing retainer body, which respectively contact with the inner ring and the outer ring of the bearing, are both provided with grooves; the width direction of the grooves is vertical to the motion direction of the bearing retainer body; the depth of the groove and the gradient of the groove wall can be determined by experiments according to the maximum load suffered by the bearing retainer body during operation; the principle is that an oil film is insured to bear enough pressure to separate the bearing retainer body from the inner ring and the outer ring of the bearing so as to always ensure that the bearing retainer body can not directly contact with the inner ring and the outer ring of the bearing, thus guaranteeing that the oil film can be always formed between the bearing retainer body and the bearing ring under the action of external ultimate load. The invention can ensure that the bearing retainer body can not have friction with the inner ring and the outer ring of the bearing in the operation process of the bearing.
Description
Technical field
The present invention relates to a kind of retainer.
Background technique
Directly contact often between existing retainer and the bearing enclose, in the bearing running, easily produce friction between retainer and bearing inner race and the bearing outer ring, and retainer generally is made of metal, therefore in wear process, tend to produce metallic dust, metallic dust easily enters in the lubricant medium of bearing, even often change lubricant medium, also be difficult to metallic dust is discharged fully, because lubricant medium is very responsive to metallic dust, few metallic dust also can change the performance of lubricant medium, influences the working life of bearing.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective that prior art exists, provide a kind of in the running of bearing not can and bearing enclose between produce the retainer of friction.
Technological scheme of the present invention is: it comprises the retainer body, described retainer body both sides are equipped with groove with the surface that bearing inner race contacts with bearing outer ring respectively, the width direction of described groove is vertical with retainer body moving direction, the inclination of the degree of depth of groove and groove cell wall can be determined by experiment according to the maximum load that the retainer body is subjected to when moving, its principle is to guarantee that oil film can bear enough pressure retainer body and bearing enclose are separated, remain the retainer body and can directly not contact with bearing outer ring, to guarantee that can form oil film all the time between the retainer body and race ring when being subjected to the outer limits loading is as the criterion with bearing inner race.
Described trench cross-section is preferably triangle.
Effect of the present invention: owing to be equipped with groove on the surface that the retainer body contacts with bearing enclose, help guaranteeing that the retainer body can directly not contact with the Internal and external cycle of bearing, prevent that bearing from wearing and tearing in running, improve working life and bearing reliability of operation.
Description of drawings
Fig. 1 is an embodiment of the invention structural representation;
Fig. 2 is an A embodiment illustrated in fig. 1 place enlarged diagram;
Fig. 3 is the schematic cross-section after retainer body and bearing inner race and the bearing outer ring assembling.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
With reference to accompanying drawing, present embodiment comprises retainer body 4, described retainer body 4 both sides are equipped with groove 3 with the surface that bearing inner race 1 contacts with bearing outer ring 6 respectively, groove 3 cross sections are triangle, the direction of the width 7 of this groove is vertical with retainer body 4 moving direction, the inclination α of the depth H of groove 3 and groove cell wall 9 can be determined by experiment according to the maximum load that the retainer body is subjected to when moving, and its principle is to guarantee that oil film 2 can bear enough pressure retainer body 4 and bearing inner race 1 and bearing outer ring 6 are separated; According to the lubricated basic theories of elastic fluid, between two articles, form lubricant film, must meet two conditions so: 1) relative movement is arranged between the two articles; 2) cross section changes between the two articles, and concrete formula is:
In the formula: p is an oil film pressure,
For any any oil film pressure p along the variance ratio of x direction, h
0Be gap thickness, h is an oil slick thickness, and η is a lubricating oil viscosity, and v is the two articles speed of related movement, as seen, and the changes of section between the size of oil film pressure p and two articles speed of related movement v and the two articles
Relevant, to guarantee that can form oil film 2 all the time between the retainer body 4 and race ring when being subjected to the outer limits loading is as the criterion.
Do the time spent when being subjected to external force, owing to be equipped with groove 3 with the surface that bearing inner race 1 contacts with bearing outer ring 6 at retainer body 4, thereby help avoiding contacting of generation face and face between retainer body 4 and the bearing inner race 1, avoid contacting of the face that can not produce between retainer body 4 and the bearing outer ring 6 and face, lubricant medium enters the groove 3 from groove 3 big ends, flow to groove 3 small ends again, thereby help preventing effectively that forming oil film 2 between retainer body 4 and the bearing inner race 1 and between retainer body 4 and the bearing outer ring 6 bearing running middle (center) bearing retainer body 4 is worn.
More than be one embodiment of the present invention, a preferred demonstration example.The scope that patent application of the present invention is asked for protection has more than and is limited to described mode of execution.All and technological scheme present embodiment equivalence all belongs to protection scope of the present invention.
Claims (2)
1. retainer, comprise the retainer body, it is characterized in that, described retainer body both sides are equipped with groove with the surface that bearing inner race contacts with bearing outer ring respectively, the width direction of described groove is vertical with retainer body moving direction, the inclination of the degree of depth of groove and groove cell wall can be determined by experiment according to the maximum load that the retainer body is subjected to when moving, its principle is to guarantee that oil film can bear enough pressure retainer body and bearing enclose are separated, remain the retainer body and can directly not contact with bearing outer ring, to guarantee that can form oil film all the time between the retainer body and race ring when being subjected to the outer limits loading is as the criterion with bearing inner race.
2. retainer according to claim 1 is characterized in that, described trench cross-section is a triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910310864A CN101713435A (en) | 2009-12-04 | 2009-12-04 | Bearing retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910310864A CN101713435A (en) | 2009-12-04 | 2009-12-04 | Bearing retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101713435A true CN101713435A (en) | 2010-05-26 |
Family
ID=42417339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910310864A Pending CN101713435A (en) | 2009-12-04 | 2009-12-04 | Bearing retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101713435A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846137A (en) * | 2010-05-28 | 2010-09-29 | 湘电风能有限公司 | Anti-wear bearing retainer |
| CN103842691A (en) * | 2011-10-04 | 2014-06-04 | 纳博特斯克有限公司 | Gear transmission device |
| CN112128232A (en) * | 2019-06-25 | 2020-12-25 | 中国航发商用航空发动机有限责任公司 | Roller bearing system for an aircraft engine |
-
2009
- 2009-12-04 CN CN200910310864A patent/CN101713435A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846137A (en) * | 2010-05-28 | 2010-09-29 | 湘电风能有限公司 | Anti-wear bearing retainer |
| CN103842691A (en) * | 2011-10-04 | 2014-06-04 | 纳博特斯克有限公司 | Gear transmission device |
| CN103842691B (en) * | 2011-10-04 | 2016-09-21 | 纳博特斯克有限公司 | Gear drive |
| CN112128232A (en) * | 2019-06-25 | 2020-12-25 | 中国航发商用航空发动机有限责任公司 | Roller bearing system for an aircraft engine |
| CN112128232B (en) * | 2019-06-25 | 2022-04-15 | 中国航发商用航空发动机有限责任公司 | Roller bearing system for an aircraft engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100526 |