CN102889302A - Method for designing two arc surfaces on inner diameter end face of retainer - Google Patents
Method for designing two arc surfaces on inner diameter end face of retainer Download PDFInfo
- Publication number
- CN102889302A CN102889302A CN2012104097011A CN201210409701A CN102889302A CN 102889302 A CN102889302 A CN 102889302A CN 2012104097011 A CN2012104097011 A CN 2012104097011A CN 201210409701 A CN201210409701 A CN 201210409701A CN 102889302 A CN102889302 A CN 102889302A
- Authority
- CN
- China
- Prior art keywords
- retainer
- arc surface
- inner ring
- rib
- diameter
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005096 rolling process Methods 0.000 abstract description 14
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
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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
- F16C33/46—Cages for rollers or needles
- F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
- F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a method for designing two arc surfaces on an inner diameter end face of a retainer. The diameter of an outer diameter lead flange (2.1) of an inner ring (2) is set to be D; the total width of the retainer (1) is H; the diameter of a pocket (1.1) of the retainer (1) is d; a sum of widths of two flanges (1.2) at the pocket of the retainer is H-d; the width b of each flange is (H-d)/2; the inner diameter end face of each flange is designed as a protruded arc surface; when a gap between the protruded arc surface and the outer diameter lead flange of the inner ring is set to be S, then the inner diameter of each flange is D+2S; when the arc height of the protruded arc surface is h, then a central distance between two adjacent arc heights on the flanges is D+2S+2h; and the curvature radius r of each protruded arc surface is more than or equal to b/2. By adopting the design method, the contact friction of the outer diameter lead flange of the inner ring can be reduced, fluctuation frequency and a peak value which are caused by friction are reduced, and the working stability of a rolling bearing is improved.
Description
Technical field
The invention belongs to technical field of bearings, especially a kind of retainer inner-diameter end mask has the design method of two arc surfaces.
Background technique
The Main Function of retainer is that rolling element is equally spaced, run foul of each other and rub to prevent from producing when working between the rolling element, and guiding drive rolling element rolls at the set raceway of inner ring and outer ring.
Common retainer is the cylndrical surface at the internal diameter end face at its place, pocket hole, the external diameter guiding rib of this cylndrical surface and inner ring can be regarded short Oil Wedge Hydrodynamic Bearing as, and this cylndrical surface is that a kind of line contacts with the external diameter guiding rib of inner ring, line contact can produce all relatively large frictional force of vibration frequency and peak value in real work, the frictional force of this great fluctuation process, peak value can affect the flexibility of bearing rotary, increases vibration values.
In addition; under desirable working state; because retainer does not have its fixing track and support; retainer can keep a kind of and the contactless suspension attitude of inner ring and outer ring; and under actual working state; because suffered load uncertain and process existing error, the operating attitude of retainer can occur certain eccentric and tilt usually, this off-centre and inclination can make the external diameter guiding rib generation contact friction of retainer and inner ring.
The contact friction that how to reduce described line contact and produce is the important topic of retainer research, and this has far reaching significance to the working stability that improves rolling bearing.
Summary of the invention
For addressing the above problem, the invention provides a kind of retainer inner-diameter end mask has the design method of two arc surfaces, according to this design method retainer internal diameter end face is designed to two arc surfaces, two arc surfaces form point with the external diameter guiding rib of inner ring and contact, the retainer of two arc surfaces design under a contact and the normal lubricating status can effectively reduce and the external diameter guiding rib of inner ring between contact friction, greatly reduce vibration frequency and the peak value that produces owing to contact friction, improved the working stability of rolling bearing.
For achieving the above object, the present invention adopts following technological scheme:
A kind of retainer inner-diameter end mask has the design method of two arc surfaces, and the external diameter guiding rib diameter of setting inner ring is D, and the beam overall of retainer is H, and the pocket bore dia of retainer is d, and feature of the present invention is as follows:
Width sum=the H-d of two ribs is located in retainer pocket hole, then the width b=(H-d)/2 of each rib; The internal diameter end face of each rib is designed to protrude arc surface, when the crack is set as S between the external diameter of described protrusion arc surface and the inner ring guiding rib, the internal diameter=D+2S of rib then; When the camber of described protrusion arc surface is set as h, distance=D+2S+2h between adjacent two camber then, the radius of curvature r of described protrusion arc surface 〉=b/2.
S described above is controlled between 0.05 ~ 2.5 ㎜.
H described above≤5 ㎜.
Owing to adopt as mentioned above technological scheme, the present invention produces following beneficial effect:
1, the present invention is owing to the internal diameter end face of retainer pocket hole being located each rib is designed to protrude arc surface, described protrusion arc surface forms point with the external diameter guiding rib of inner ring and contacts, the point contact is approximate a kind of ehl status under normal lubricating status, have that two retainers that protrude arc surfaces can effectively reduce and the external diameter guiding rib of inner ring between contact friction, greatly reduce vibration frequency and the peak value that produces owing to contact friction, the direct effect of antifriction is the working stability that has improved rolling bearing.
2, the crack is set as S between the rib because of the present invention two external diameters that protrude arc surface and inner ring guide, so the retainer that the present invention designs guides rib near the external diameter of inner ring relatively, rely on the external diameter guiding rib of inner ring to provide rotary mop power for retainer, so the retainer that the present invention designs can be applied to the rolling bearing of High Rotation Speed, the rotating speed of rolling bearing is further improved.
Description of drawings
Fig. 1 is the structural representation sketch that partly cuts open of the present invention.
Fig. 2 is the A-A place cross-section structure simplified schematic diagram of Fig. 1.
Fig. 3 is the graph of a relation of the external diameter guiding rib of retainer of the present invention and inner ring.
Among the above-mentioned figure: the 1-retainer; 1.1-pocket hole; 1.2-rib; The 2-inner ring; 2.1-external diameter guiding rib.
Embodiment
The present invention is the design method that a kind of retainer inner-diameter end mask has two arc surfaces.
Internal diameter guiding rib 2.1 diameters of setting outer ring 2 are D, and the beam overall of retainer 1 is H, and pocket hole 1.1 diameters of retainer 1 are d, and the pocket hole count is several, and these parameters are the prerequisite basic parameters of rolling bearing.
Such as D=60.6 ㎜, H=11.1 ㎜, d=6.6 ㎜.
In conjunction with Fig. 1-Fig. 3, the width sum of two ribs=H-d=4.5 ㎜, then the width b=(H-d) of each rib 1.2/2=2.25 ㎜ located in retainer of the present invention 1 pocket hole.
Internal diameter end face or its radial end face of each rib 1.2 are designed to protrude arc surface, the described protrusion arc surface of two ribs 1.2 has just formed the retainer with two arc surfaces, when the crack is set as S between the internal diameter guiding rib 2.1 of described protrusion arc surface and outer ring 2, the internal diameter of rib 1.2=D+2S=61.0 ㎜ then, described S is controlled at 0.2 ㎜, described protrusion arc surface forms point with the internal diameter guiding rib 2.1 of outer ring 2 and contacts, the point contact is approximate a kind of ehl status under normal lubricating status, have that two retainers that radially protrude arc surface can effectively reduce and the external diameter of inner ring guiding rib between contact friction, greatly reduce vibration frequency and the peak value that produces owing to contact friction, the direct effect of antifriction is the working stability that has improved rolling bearing.The external diameter of outer rib 1.2 gets final product with reference to the retainer parameter.
When the camber of described protrusion arc surface is set as h, distance=D+2S+2h=61.6 ㎜ between adjacent two camber then, the radius of curvature r of described protrusion arc surface 〉=b/2=1.125 ㎜, described h is controlled at 0.3 ㎜.Although radius of curvature r calculates according to b/2, radius of curvature r also will consider according to the working speed of rolling bearing, the material of retainer, the intensity of retainer.
The retainer that the present invention designs guides rib near the external diameter of inner ring relatively, rely on the external diameter guiding rib of inner ring to provide rotary mop power for retainer, so the retainer that the present invention designs can be applied to the rolling bearing of High Rotation Speed, the rotating speed of rolling bearing is further improved.
The pocket hole of retainer can be enclosed, also can be semi-open type.
The material of retainer can be nonmetallic such as engineering plastics or bakelite etc., also can be metal such as Cuprum alloy, zinc alloy etc.
Open the present invention and the embodiment that selects in this article currently think to suit, but will be appreciated that: the present invention is intended to comprise that all belong to the interior embodiment's of this design and the scope of the invention all changes and improvement.
Claims (3)
1. a retainer inner-diameter end mask has the design method of two arc surfaces, and external diameter guiding rib (2.1) diameter of setting inner ring (2) is D, and the beam overall of retainer (1) is H, and pocket hole (1.1) diameter of retainer is d, it is characterized in that:
Width sum=the H-d of two ribs (1.2) is located in retainer (1) pocket hole (1.1), then the width b=(H-d)/2 of each rib (1.2); The internal diameter end face of each rib (1.2) is designed to protrude arc surface, when the crack is set as S between the external diameter of described protrusion arc surface and inner ring (2) the guiding rib (2.1), the internal diameter=D+2S of rib (1.2) then; When the camber of described protrusion arc surface is set as h, distance=D+2S+2h between adjacent two camber then, the radius of curvature r of described protrusion arc surface 〉=b/2.
2. described retainer inner-diameter end mask has the design method of two arc surfaces according to claim 1, and it is characterized in that: described S is controlled between 0.05 ~ 2.5 ㎜.
3. described retainer inner-diameter end mask has the design method of two arc surfaces according to claim 1, it is characterized in that: described h≤5 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210409701.1A CN102889302B (en) | 2012-10-24 | 2012-10-24 | Method for designing two arc surfaces on inner diameter end face of retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210409701.1A CN102889302B (en) | 2012-10-24 | 2012-10-24 | Method for designing two arc surfaces on inner diameter end face of retainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102889302A true CN102889302A (en) | 2013-01-23 |
| CN102889302B CN102889302B (en) | 2014-11-05 |
Family
ID=47532927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210409701.1A Expired - Fee Related CN102889302B (en) | 2012-10-24 | 2012-10-24 | Method for designing two arc surfaces on inner diameter end face of retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102889302B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6068408A (en) * | 1995-10-19 | 2000-05-30 | Nsk Ltd. | Cage for a rolling bearing |
| CN2644763Y (en) * | 2003-04-02 | 2004-09-29 | 洛阳轴承集团有限公司 | Integral cage with arc pocket |
| CN2775378Y (en) * | 2005-01-14 | 2006-04-26 | 王长乐 | Double K value double circular and ball pocket wave shape bearing holder |
| EP1803952A1 (en) * | 2004-10-22 | 2007-07-04 | Ntn Corporation | Machined cage for cylindrical roller bearing and method of manufacturing the same |
-
2012
- 2012-10-24 CN CN201210409701.1A patent/CN102889302B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6068408A (en) * | 1995-10-19 | 2000-05-30 | Nsk Ltd. | Cage for a rolling bearing |
| CN2644763Y (en) * | 2003-04-02 | 2004-09-29 | 洛阳轴承集团有限公司 | Integral cage with arc pocket |
| EP1803952A1 (en) * | 2004-10-22 | 2007-07-04 | Ntn Corporation | Machined cage for cylindrical roller bearing and method of manufacturing the same |
| CN2775378Y (en) * | 2005-01-14 | 2006-04-26 | 王长乐 | Double K value double circular and ball pocket wave shape bearing holder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102889302B (en) | 2014-11-05 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: LUOYANG BEARING RESEARCH INSTITUTE Co.,Ltd. Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: LUOYANG BEARING SCIENCE & TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20211024 |
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| CF01 | Termination of patent right due to non-payment of annual fee |