CN102434589A - Bearing assembly - Google Patents
Bearing assembly Download PDFInfo
- Publication number
- CN102434589A CN102434589A CN2011102570114A CN201110257011A CN102434589A CN 102434589 A CN102434589 A CN 102434589A CN 2011102570114 A CN2011102570114 A CN 2011102570114A CN 201110257011 A CN201110257011 A CN 201110257011A CN 102434589 A CN102434589 A CN 102434589A
- Authority
- CN
- China
- Prior art keywords
- bearing
- outer ring
- bearing outer
- lug bosses
- roller surface
- 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
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining 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
- 238000012797 qualification Methods 0.000 description 1
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a bearing, which comprises a bearing outer ring (1), a rolling body (3) and a bearing inner ring (4), and is structurally characterized in that the inner raceway surface of the bearing outer ring (1) comprises a plurality of convex parts (11) protruding towards the inner side of the bearing outer ring (1), the convex parts (11) are sequentially connected, and a concave part (12) is formed at the joint of two adjacent convex parts (11). The bearing is used for ensuring that the matching surface between the bearing outer ring and the bearing seat hole is not easy to slip under the working condition of high speed and light load, and the rotating performance of the bearing is ensured, so that the service life of the bearing is prolonged.
Description
Technical field
The present invention relates to a kind of bearing, is specifically related to a kind of three lobe ripple bearings that are applied to high speed light loading.
Background technique
Common high speed light loading bearing is because DN value high (DN representes in the bearing directly the product with the bearing rotating speed), and load is low, for the ease of the high-speed rotation of bearing; Usually the fit tolerance of bearing outer ring and bearing support is less; Therefore bearing outer ring and bearing support skidding often take place in use for some time, this phenomenon can be damaged bearing and bearing support, seriously reduces transmission performance; Especially in the transmission of aeroengine, even influence flight safety.
Summary of the invention
The technical problem that the present invention will solve provides a kind of bearing that between high speed light loading operating mode lower bearing outer ring and bearing support, is difficult for skidding.
For solving the problems of the technologies described above; A kind of bearing of the present invention; Comprise bearing outer ring, rolling element, bearing inner race; Wherein the interior roller surface of bearing outer ring comprises a plurality of lug bosses side-prominent in bearing outer ring, and these a plurality of lug bosses connect successively, forms recess in the joint of adjacent two lug bosses.
Further, lug boss has three, and these three lug bosses are along on the interior roller surface of circumferentially being evenly distributed on of bearing outer ring:
Further, interior roller surface cross section profile satisfy following formula:
R+0.052cos3θ；
Wherein, R is the design radial of the interior raceway of bearing outer ring, and θ is the pairing start angle of design radial R.
Because the interior roller surface at bearing outer ring comprises a plurality of lug bosses side-prominent in bearing outer ring, these a plurality of lug bosses connect successively, form recess in the joint of adjacent two lug bosses.And, interior roller surface cross section profile satisfy following formula: R+0.052cos3 θ; Wherein, R is the design radial of the interior raceway of bearing outer ring, and θ is the pairing start angle of design radial R.Have only several microns between lug boss that calculates by formula and the depressed part; Do not influence the rotation of rolling element; Because the existence of lug boss, bearing rolling element when high-speed rotation can produce trace circular to bearing outer ring and impact in raceway, this trace circular is impacted the fitting surface that is applied to bearing support and bearing outer ring through bearing outer ring; Be equivalent to add preload to bearing; Therefore can effectively avoid skidding under the bearing high speed light loading operating mode, thereby guarantee the rotating property of bearing, improve bearing working life.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the bearing of the embodiment of the invention; And
Fig. 2 is an outer ring sectional schematic diagram among Fig. 1.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
As shown in Figure 1, the bearing of the embodiment of the invention is a roller bearing, comprises bearing outer ring 1, retainer 2, rolling element 3, bearing inner race 4.
As shown in Figure 2, the interior roller surface of bearing outer ring 1 comprises a plurality of lug bosses side-prominent in bearing outer ring 1 11, and these a plurality of lug bosses 11 connect successively, forms recess 12 in the joint of adjacent two lug bosses 11.Lug boss has three, and these three lug bosses are along on the interior roller surface of circumferentially being evenly distributed on of bearing outer ring 1.
Should in roller surface cross section profile satisfy following formula:
R+0.052cos3θ；
Wherein, R is the design radial of the interior raceway of bearing outer ring 1, and θ is the pairing start angle of design radial R.Wherein, the θ value can be in the 0-360 degree value arbitrarily.Obviously; For obtaining the section geometric locus of more accurate lug boss 11 and depressed part 12; Usually giving some multiples of a basic θ value and θ value asks a little; Like desirable θ is 5 °, 10 °, 15 ° ... 360 °, calculate corresponding each point then, smooth again connection each point promptly becomes the section geometric locus of lug boss 11 and depressed part 12.This geometric locus becomes concentric three lug bosses that are uniformly distributed with 11 and depressed part 12 through machining.This lug boss 11 and depressed part 12 promptly become the interior roller surface of bearing outer ring 1.
Because the interior roller surface at bearing outer ring 1 comprises a plurality of lug bosses side-prominent in bearing outer ring 1 11, these a plurality of lug bosses 11 connect successively, form recess 12 in the joint of adjacent two lug bosses.And, interior roller surface cross section profile satisfy following formula: R+0.052cos3 θ; Wherein, R is the design radial of the interior raceway of bearing outer ring 1, and θ is the pairing start angle of design radial R.Have only several microns between lug boss 11 that calculates by formula and the depressed part 12; Do not influence the rotation of rolling element 3; Because the existence of lug boss 11, bearing rolling element 3 when high-speed rotation can produce trace circular to bearing outer ring 1 and impact in raceway, this trace circular is impacted the fitting surface that is applied to bearing support and bearing outer ring 1 through bearing outer ring 1; Be equivalent to add preload to bearing; Therefore can effectively avoid skidding under the bearing high speed light loading operating mode, thereby guarantee the rotating property of bearing, improve bearing working life
From above description, can know; Bearing of the present invention; Not only be applicable to roller bearing, also applicable to ball bearing, as long as satisfy formula: R+0.052cos3 θ at the cross section profile of traditional bearing outer ring 1; Be processed into concentric three lug bosses that are uniformly distributed with 11 and depressed part 12, can effectively avoid the skidding of high speed light loading operating mode lower bearing.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a bearing comprises bearing outer ring (1), rolling element (3), bearing inner race (4), it is characterized in that,
The interior roller surface of said bearing outer ring (1) comprises a plurality of lug bosses (11) side-prominent in said bearing outer ring (1), and said a plurality of lug bosses (11) connect successively, forms recess (12) in the joint of adjacent two said lug bosses (11).
2. bearing according to claim 1 is characterized in that, said lug boss has three, and said three lug bosses are along on the said interior roller surface of circumferentially being evenly distributed on of said bearing outer ring (1).
3. bearing according to claim 2 is characterized in that,
In said roller surface cross section profile satisfy following formula:
R+0.052cos3θ；
Wherein, R is the design radial of the interior raceway of said bearing outer ring (1), and θ is the pairing start angle of said design radial R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110257011.4A CN102434589B (en) | 2011-09-01 | 2011-09-01 | Bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110257011.4A CN102434589B (en) | 2011-09-01 | 2011-09-01 | Bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102434589A true CN102434589A (en) | 2012-05-02 |
| CN102434589B CN102434589B (en) | 2014-02-12 |
Family
ID=45982858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110257011.4A Active CN102434589B (en) | 2011-09-01 | 2011-09-01 | Bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434589B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508416A (en) * | 2014-09-23 | 2016-04-20 | 舍弗勒技术股份两合公司 | Backing bearing |
| CN107830058A (en) * | 2017-11-28 | 2018-03-23 | 洛阳轴承研究所有限公司 | Rolling bearings and their bearing rings |
| WO2024187747A1 (en) * | 2023-03-11 | 2024-09-19 | 浙江亚微精密机床有限公司 | Rotary shaft anti-vibration device having two contact regions |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07317756A (en) * | 1994-05-23 | 1995-12-08 | Sando Iron Works Co Ltd | Submerged bearing |
| TW413717B (en) * | 2000-02-03 | 2000-12-01 | Chen Shu Kuan | Uni-directional bearings structure |
| JP2003049844A (en) * | 2001-08-03 | 2003-02-21 | Nsk Ltd | Thrust roller bearing |
| CN201034120Y (en) * | 2007-05-18 | 2008-03-12 | 人本集团有限公司 | Roller bearing containing eccentric stop ring |
| CN201121661Y (en) * | 2007-12-05 | 2008-09-24 | 镇江飞亚轴承有限责任公司 | Pressing sleeve bearing with elastic housing washer |
| JP2008232281A (en) * | 2007-03-20 | 2008-10-02 | Jtekt Corp | Thrust roller bearing |
| CN201221568Y (en) * | 2008-06-26 | 2009-04-15 | 无锡华洋滚动轴承有限公司 | Combined type one-way bearing outer ring body |
| JP4285157B2 (en) * | 2003-08-28 | 2009-06-24 | 株式会社ジェイテクト | Bearing device for steering column |
| CN101529105A (en) * | 2006-10-26 | 2009-09-09 | Ntn株式会社 | Outer ring for rocking bearing, retainer for rocking bearing, and air disc brake device |
| CN201588871U (en) * | 2009-12-25 | 2010-09-22 | 西安科技大学 | anti-slip rolling bearing |
| JP2011506882A (en) * | 2007-12-21 | 2011-03-03 | シェフラー テクノロジーズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | A shaft support including a radial rolling bearing having a separation portion on the outer ring |
| CN202266592U (en) * | 2011-09-01 | 2012-06-06 | 中国航空动力机械研究所 | Bearing |
-
2011
- 2011-09-01 CN CN201110257011.4A patent/CN102434589B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07317756A (en) * | 1994-05-23 | 1995-12-08 | Sando Iron Works Co Ltd | Submerged bearing |
| TW413717B (en) * | 2000-02-03 | 2000-12-01 | Chen Shu Kuan | Uni-directional bearings structure |
| JP2003049844A (en) * | 2001-08-03 | 2003-02-21 | Nsk Ltd | Thrust roller bearing |
| JP4285157B2 (en) * | 2003-08-28 | 2009-06-24 | 株式会社ジェイテクト | Bearing device for steering column |
| CN101529105A (en) * | 2006-10-26 | 2009-09-09 | Ntn株式会社 | Outer ring for rocking bearing, retainer for rocking bearing, and air disc brake device |
| JP2008232281A (en) * | 2007-03-20 | 2008-10-02 | Jtekt Corp | Thrust roller bearing |
| CN201034120Y (en) * | 2007-05-18 | 2008-03-12 | 人本集团有限公司 | Roller bearing containing eccentric stop ring |
| CN201121661Y (en) * | 2007-12-05 | 2008-09-24 | 镇江飞亚轴承有限责任公司 | Pressing sleeve bearing with elastic housing washer |
| JP2011506882A (en) * | 2007-12-21 | 2011-03-03 | シェフラー テクノロジーズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | A shaft support including a radial rolling bearing having a separation portion on the outer ring |
| CN201221568Y (en) * | 2008-06-26 | 2009-04-15 | 无锡华洋滚动轴承有限公司 | Combined type one-way bearing outer ring body |
| CN201588871U (en) * | 2009-12-25 | 2010-09-22 | 西安科技大学 | anti-slip rolling bearing |
| CN202266592U (en) * | 2011-09-01 | 2012-06-06 | 中国航空动力机械研究所 | Bearing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508416A (en) * | 2014-09-23 | 2016-04-20 | 舍弗勒技术股份两合公司 | Backing bearing |
| CN107830058A (en) * | 2017-11-28 | 2018-03-23 | 洛阳轴承研究所有限公司 | Rolling bearings and their bearing rings |
| CN107830058B (en) * | 2017-11-28 | 2019-05-31 | 洛阳轴承研究所有限公司 | Rolling bearings and their bearing rings |
| CN110043566A (en) * | 2017-11-28 | 2019-07-23 | 洛阳轴承研究所有限公司 | Rolling bearing and its bearing ring |
| WO2024187747A1 (en) * | 2023-03-11 | 2024-09-19 | 浙江亚微精密机床有限公司 | Rotary shaft anti-vibration device having two contact regions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102434589B (en) | 2014-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2412938A3 (en) | Shaft assembly for a gas turbine engine | |
| CN202266592U (en) | Bearing | |
| JP5606972B2 (en) | Slewing bearing seal structure and slewing bearing | |
| AU2012264981B2 (en) | Large rolling bearing | |
| EP2574805A3 (en) | Bearing oiling system | |
| CN204253603U (en) | Double-row conical bearing | |
| CN102434589B (en) | Bearing | |
| US10309459B2 (en) | Ball bearing for a turbocharger | |
| CN204646988U (en) | A kind of combination bearing | |
| US20210010532A1 (en) | Bearing device for wheels | |
| CN103115070A (en) | Self-aligning roller bearing retainer for brass entity, and forming method of retainer | |
| CN203202013U (en) | Angular-contact ball bearing | |
| CN104175800B (en) | Integrated hub | |
| CN205605777U (en) | Spacing bearing seat of axial | |
| CN204025394U (en) | The novel agricultural machinery bearing of usheing to seat | |
| CN204213184U (en) | A kind of automobile hub bearing inner flange | |
| CN101769301A (en) | Spherical outside surface four-point contact ball bearing with permanent seat | |
| CN202326701U (en) | Self-positioning outer-teeth four-point contact ball type slewing bearing | |
| CN203404248U (en) | Tapered roller bearing | |
| CN204175801U (en) | A kind of structure preventing bearing inner race from skidding | |
| CN108302119A (en) | Flexible bearing and harmonic speed reducer | |
| CN102991270A (en) | Hub unit | |
| CN203189518U (en) | Conical roller bearing | |
| CN101769297A (en) | Plummer spherical outside surface four point contact ball bearing | |
| CN105114462A (en) | Radial spherical plain bearing with blind holes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |