CN102889302B - 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
- CN102889302B CN102889302B CN201210409701.1A CN201210409701A CN102889302B CN 102889302 B CN102889302 B CN 102889302B CN 201210409701 A CN201210409701 A CN 201210409701A CN 102889302 B CN102889302 B CN 102889302B
- 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.)
- Expired - Fee Related
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
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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, collide with each other and rub, and guiding drives rolling element to roll on the set raceway of inner ring and outer ring to prevent between rolling element producing when the work.
Common retainer is cylndrical surface at the internal diameter end face at its pocket hole place, the internal diameter end face at retainer pocket hole place and the external diameter of inner ring guiding rib can be regarded short Oil Wedge Hydrodynamic Bearing as, and the internal diameter end face at retainer pocket hole place is that a kind of line contacts with the external diameter of inner ring guiding rib, 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; due to the uncertain of suffered load and process existing error, the operating attitude of retainer can occur certain eccentric and tilt conventionally, and this bias 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 that two arc surfaces design under a contact and normal lubricating status can effectively reduce and the external diameter of inner ring guides the contact friction between rib, greatly reduce the vibration frequency and the peak value that produce due to contact friction, improved the working stability of rolling bearing.
For achieving the above object, the present invention adopts following technological scheme:
Retainer inner-diameter end mask has a design method for 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 retainer pocket hole place two ribs, the width b=(H-d)/2 of each rib; The internal diameter end face of each rib is designed to protrude arc surface, in the time that between the external diameter guiding rib of described protrusion arc surface and inner ring, gap is set as S, the internal diameter=D+2S of rib; In the time that the camber of described protrusion arc surface is set as h, distance=D+2S+2h between adjacent two camber, the radius of curvature r >=b/2 of described protrusion arc surface.
S described above is controlled between 0.05 ~ 2.5 ㎜.
H≤5 ㎜ described above.
Owing to adopting technological scheme described above, the present invention produces following beneficial effect:
1, the present invention is due to the internal diameter end face of each rib of retainer pocket hole place is designed to protrude arc surface, described protrusion arc surface forms point with the external diameter guiding rib of inner ring and contacts, point contact is approximate a kind of ehl status under normal lubricating status, the retainer with two protrusion arc surfaces can effectively reduce the contact friction between the external diameter guiding rib of inner ring, greatly reduce the vibration frequency and the peak value that produce due to contact friction, the direct effect of antifriction is the working stability that has improved rolling bearing.
2, because guiding gap between rib, of the present invention two external diameters that protrude arc surface and inner ring are set as S, therefore the retainer that the present invention designs guides rib near the external diameter of inner ring relatively, the external diameter guiding rib that relies on inner ring provides 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.
Brief description of the 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.
In above-mentioned figure: 1-retainer; 1.1-pocket hole; 1.2-rib; 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 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. 1-3, width sum=H-d=4.5 ㎜ of retainer 1 pocket hole place two ribs of the present invention, width b=(the H-d)/2=2.25 ㎜ of each rib 1.2.
By the internal diameter end face of each rib 1.2 or its radial end face is designed to protrude arc surface, the described protrusion arc surface of two ribs 1.2 has just formed the retainer with two arc surfaces, in the time that between the internal diameter guiding rib 2.1 of described protrusion arc surface and outer ring 2, gap is set as S, internal diameter=D+2S=61.0 ㎜ of rib 1.2, 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, 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 the vibration frequency and the peak value that produce due 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 is with reference to retainer parameter.
In the time that the camber of described protrusion arc surface is set as h, distance=D+2S+2h=61.6 ㎜ between adjacent two camber, radius of curvature r >=b/2=1.125 ㎜ of described protrusion arc surface, 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 intensity of the material of the working speed of rolling bearing, retainer, retainer.
The retainer that the present invention designs guides rib near the external diameter of inner ring relatively, the external diameter guiding rib that relies on inner ring provides 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, can be also semi-open type.
The material of retainer can be nonmetallic as engineering plastics or bakelite etc., can be also metal as Cuprum alloy, zinc alloy etc.
Open the present invention and the embodiment that selects in this article, current think suitable, but will be appreciated that: the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and the scope of the invention.
Claims (3)
1. a retainer inner-diameter end mask has the design method of two arc surfaces, external diameter guiding rib (2.1) diameter of setting inner ring (2) is D, 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), 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, in the time that between the external diameter guiding rib (2.1) of described protrusion arc surface and inner ring (2), gap is set as S, the internal diameter=D+2S of rib (1.2); In the time that the camber of described protrusion arc surface is set as h, distance=D+2S+2h between adjacent two camber, the radius of curvature r >=b/2 of described protrusion arc surface.
2. retainer inner-diameter end mask has the design method of two arc surfaces according to claim 1, it is characterized in that: described S is controlled between 0.05 ~ 2.5 ㎜.
3. 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 CN102889302A (en) | 2013-01-23 |
| CN102889302B true 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 |
|---|---|
| CN102889302A (en) | 2013-01-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
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 |