CN109469682A - A kind of ultrahigh speed bearing retainer - Google Patents
A kind of ultrahigh speed bearing retainer Download PDFInfo
- Publication number
- CN109469682A CN109469682A CN201811602825.5A CN201811602825A CN109469682A CN 109469682 A CN109469682 A CN 109469682A CN 201811602825 A CN201811602825 A CN 201811602825A CN 109469682 A CN109469682 A CN 109469682A
- Authority
- CN
- China
- Prior art keywords
- retainer
- bearing
- ultrahigh speed
- steel ball
- gap
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 4
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- F16C33/38—Ball cages
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a kind of ultrahigh speed bearing retainers, are the annulus of a convex shape section including retainer, are provided with protrusion on the inner wall of the annulus；Multiple flat round hole are evenly spaced on the outer diameter of ring, the steel ball of the bearing is fallen in flat round hole；Flat round hole hole is ellipse, including long axis X and short axle Y；It is Cx that the gap of retainer and bearing outer ring flange, which be C0, retainer pocket and steel ball in the gap of X-direction, retainer pocket and be Cy with the gap of steel ball in the Y direction.Stuck phenomenon will not occur for retainer when present apparatus bearing working, and be able to maintain stabilization at high speeds.
Description
Technical field
The present invention relates to a kind of retainer of bearing, specifically a kind of dedicated holding for ultrahigh speed bearing
Frame.
Background technique
The band that turns of bearing is generally described with dmn value, and 50,100,150,200,250 divided, unit is WRPM, we will
Dmn value is greater than 100 and is defined as high speed, and Dmn value is greater than 200 and is defined as ultrahigh speed.Grease lubrication condition lower bearing under normal circumstances
Accomplish that ultrahigh speed and range have certain difficulty, in addition to bearing ring material and precision have strict requirements other than to holding
The structure and precision of frame have also been proposed higher requirement, need to comprehensively consider the precision of axis, the precision of bearing block, the pairing of bearing
The suspended motion of pretightning force, the magnitude of interference pair of axis, retainer influences bearing temperature rise and sound frequency.By pair of a variety of data
Than testing and verifying, it is found that the difference of the pocket hole shape of retainer is very big to the temperature rise of bearing and the impact effect of sound frequency.
Summary of the invention
The present apparatus is directed to ultrahigh speed bearing, provided with can guarantee to keep firm ultrahigh speed bearing to protect at high speeds
Hold frame.
To achieve the above object, the invention provides the following technical scheme:
A kind of ultrahigh speed bearing retainer, which is characterized in that including
Retainer is the annulus of a convex shape section, is provided with protrusion on the inner wall of the annulus；On the outer diameter of ring uniformly
Multiple flat round hole are spaced apart, the steel ball of the bearing is fallen in flat round hole；
The flat round hole hole is ellipse, including long axis X and short axle Y；
It is Cx that the gap of retainer and bearing outer ring flange, which be C0, retainer pocket and steel ball in the gap of X-direction, retainer pocket and
It is Cy with the gap of steel ball in the Y direction.
Further improvement of these options, X=1.012 × Y+0.2.
Further improvement of these options, the Cx control is in 0.4-0.6mm；
Cy is controlled in 0.15-0.3 mm；
C0 is controlled in 0.2-0.8 mm.
Further improvement of these options, Cy are less than C0.
Further improvement of these options, the retainer use fabroil or PEEK material.
The invention has the following advantages that
Stuck phenomenon will not occur for retainer when bearing working, and be able to maintain stabilization at high speeds.
Detailed description of the invention
Fig. 1 is the top view of dress spherical structure device inside the retainer of the design.
Fig. 2 is to maintain frame cross-sectional view placed in the middle.
Fig. 3 is oblate ball enlarged drawing.
Fig. 4 is installed in the bearing finished products sectional view of the design retainer.
Fig. 5 is the partial enlarged view that dotted line is aerial in Fig. 4.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, to achieve the above object, the invention provides the following technical scheme:
A kind of ultrahigh speed bearing retainer, which is characterized in that including
Retainer 1 is the annulus of a convex shape section, and protrusion 1.1 is provided on the inner wall of the annulus；On the outer diameter of ring
Multiple flat round hole 2 are evenly spaced on, the steel ball of the bearing is fallen in flat round hole 4；
The flat round hole hole is ellipse, including long axis X and short axle Y；
The gap of retainer and bearing outer ring flange is C0, and retainer pocket and steel ball 3 are in the gap of X-direction
It is Cy for Cx, retainer pocket and with the gap of steel ball in the Y direction.
Further improvement of these options, X=1.012 × Y+0.2.
Further improvement of these options, the Cx control is in 0.4-0.6mm；
Cy is controlled in 0.15-0.3 mm；
C0 is controlled in 0.2-0.8 mm.
Further improvement of these options, Cy are less than C0.
Further improvement of these options, the retainer use fabroil or PEEK material.
To Fig. 1, Fig. 2, Fig. 3 is closed, ultrahigh speed bearing includes bearing outer ring 4, bearing inner race 5, steel ball 3；
It is Cx that the gap of retainer and bearing outer ring flange, which be C0, retainer pocket and steel ball in the gap of X-direction, retainer pocket and
It is Cy with the gap of steel ball in the Y direction；
When main shaft is to be horizontally mounted, since the bearing on main shaft remains static, because of the weight meeting of retainer itself
Be displaced to the side of outer ring, outer guide clearance C0 is bigger, and the eccentricity of retainer is then bigger, wait bearings install rear retainer with
The nonconcentricity of bearing channel will affect the high speed performance of bearing, and at this moment the small high effect of C0 value can be more preferable, still, if C0
Too small, retainer causes size swell amount that stuck phenomenon can occur when being more than guide clearance because of various factors when bearing working.Cause
This C0 value has a reasonable range between 0.2-0.8.The power source that retainer rotates under actual working state is still
Retainer is pushed to form the movement of circumferencial direction in the Y direction by steel ball, retainer is at high speeds due to gyroscopic effect meeting
Self-centering is generated, therefore Cy value should be less than C0 value.It is not intended to retainer and steel ball in X-direction again in high-speed motion simultaneously
The shake of retainer is generated in any contact, so Cx value is consistently greater than Cy value (0.15-0.3) by (0.4-0.6mm).This
When X-direction value be greater than the value of Y-direction, the as basic principle of this flat round hole ultrahigh speed retainer design.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (5)
1. a kind of ultrahigh speed bearing retainer, which is characterized in that including
Retainer (1) is the annulus of a convex shape section, and raised (1.1) are provided on the inner wall of the annulus；In the outer of ring
It is evenly spaced on diameter multiple flat round hole (2), the steel ball of the bearing is fallen in flat round hole (4)；
The flat round hole hole is ellipse, including long axis X and short axle Y；
The gap of retainer and bearing outer ring flange is C0, and retainer pocket is Cx, retainer in the gap of X-direction with steel ball (3)
Pocket be Cy with steel ball gap in the Y direction.
2. a kind of ultrahigh speed bearing retainer as described in claim 1, which is characterized in that
X=1.012×Y+0.2。
3. a kind of ultrahigh speed bearing retainer as described in claim 1, which is characterized in that
The Cx control is in 0.4-0.6mm；
Cy is controlled in 0.15-0.3 mm；
C0 is controlled in 0.2-0.8 mm.
4. a kind of ultrahigh speed bearing retainer as claimed in claim 3, which is characterized in that
Cy is less than C0.
5. a kind of ultrahigh speed bearing retainer as described in claim 1, which is characterized in that
The retainer uses fabroil or PEEK material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811602825.5A CN109469682A (en) | 2018-12-26 | 2018-12-26 | A kind of ultrahigh speed bearing retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811602825.5A CN109469682A (en) | 2018-12-26 | 2018-12-26 | A kind of ultrahigh speed bearing retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109469682A true CN109469682A (en) | 2019-03-15 |
Family
ID=65677765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811602825.5A Pending CN109469682A (en) | 2018-12-26 | 2018-12-26 | A kind of ultrahigh speed bearing retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469682A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU700708A1 (en) * | 1978-02-06 | 1979-11-30 | Предприятие П/Я А-1665 | Antifriction bearing cage |
| WO2010066293A1 (en) * | 2008-12-10 | 2010-06-17 | Aktiebolaget Skf | Cage for rolling bearing, in particular for rolling bearing used in a wind turbine generator. |
| JP2011185315A (en) * | 2010-03-05 | 2011-09-22 | Ntn Corp | Rolling bearing and retainer |
| DE102010047962A1 (en) * | 2010-10-08 | 2012-04-12 | Minebea Co., Ltd. | Ball bearing retainer for ball bearing used in dental hand pieces, has multiple ball pockets for receiving multiple balls, where ball pockets are formed as slots |
| JP2013053743A (en) * | 2011-08-09 | 2013-03-21 | Nsk Ltd | Ball bearing, motor and main shaft device using the same |
| JP2013231493A (en) * | 2012-05-01 | 2013-11-14 | Nsk Ltd | Angular ball bearing |
| DE102014209647A1 (en) * | 2014-05-21 | 2015-11-26 | Schaeffler Technologies AG & Co. KG | Ball bearing for a turbocharger |
| CN207093574U (en) * | 2017-08-23 | 2018-03-13 | 上海天安轴承有限公司 | A kind of main shaft bearing of high temperature and high speed combustion gas turbine decelerator |
| CN209294255U (en) * | 2018-12-26 | 2019-08-23 | 无锡市第二轴承有限公司 | A kind of ultrahigh speed bearing retainer |
-
2018
- 2018-12-26 CN CN201811602825.5A patent/CN109469682A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU700708A1 (en) * | 1978-02-06 | 1979-11-30 | Предприятие П/Я А-1665 | Antifriction bearing cage |
| WO2010066293A1 (en) * | 2008-12-10 | 2010-06-17 | Aktiebolaget Skf | Cage for rolling bearing, in particular for rolling bearing used in a wind turbine generator. |
| JP2011185315A (en) * | 2010-03-05 | 2011-09-22 | Ntn Corp | Rolling bearing and retainer |
| DE102010047962A1 (en) * | 2010-10-08 | 2012-04-12 | Minebea Co., Ltd. | Ball bearing retainer for ball bearing used in dental hand pieces, has multiple ball pockets for receiving multiple balls, where ball pockets are formed as slots |
| JP2013053743A (en) * | 2011-08-09 | 2013-03-21 | Nsk Ltd | Ball bearing, motor and main shaft device using the same |
| JP2013231493A (en) * | 2012-05-01 | 2013-11-14 | Nsk Ltd | Angular ball bearing |
| DE102014209647A1 (en) * | 2014-05-21 | 2015-11-26 | Schaeffler Technologies AG & Co. KG | Ball bearing for a turbocharger |
| CN207093574U (en) * | 2017-08-23 | 2018-03-13 | 上海天安轴承有限公司 | A kind of main shaft bearing of high temperature and high speed combustion gas turbine decelerator |
| CN209294255U (en) * | 2018-12-26 | 2019-08-23 | 无锡市第二轴承有限公司 | A kind of ultrahigh speed bearing retainer |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231007 Address after: Building E Workshop, No. 220 Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Applicant after: Wuxi Yulu Precision Industry Co.,Ltd. Address before: No. 1 Lijiang Road, Wangzhuang Street, Xinwu District, Wuxi City, Jiangsu Province, 214028 Applicant before: Wuxi No.2 Bearing Co.,Ltd. |