CN202266592U - Bearing - Google Patents

Bearing Download PDF

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Publication number
CN202266592U
CN202266592U CN 201120326030 CN201120326030U CN202266592U CN 202266592 U CN202266592 U CN 202266592U CN 201120326030 CN201120326030 CN 201120326030 CN 201120326030 U CN201120326030 U CN 201120326030U CN 202266592 U CN202266592 U CN 202266592U
Authority
CN
China
Prior art keywords
bearing
ring
lug bosses
lug
radial
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
Application number
CN 201120326030
Other languages
Chinese (zh)
Inventor
肖传智
李概奇
成本林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Aircraft Power Machinery Institute
Original Assignee
China Aircraft Power Machinery Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Aircraft Power Machinery Institute filed Critical China Aircraft Power Machinery Institute
Priority to CN 201120326030 priority Critical patent/CN202266592U/en
Application granted granted Critical
Publication of CN202266592U publication Critical patent/CN202266592U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a bearing, which comprises a bearing outer ring (1), a rolling element (3) and a bearing inner ring (4). The utility model has the structure characteristics that the inner raceway surface of the bearing outer ring (1) comprises many lugs (11) protruding to the inner side of the bearing outer rings, and many lugs (11) are connected in order, and the connecting part of the adjacent two lugs (11) forms a recess (12). The bearing is used in the condition of high speed light load, and the fitting surface between the bearing outer ring and the bearing pedestal aperture is not easy to slide, thereby guarantying rotation performance of bearing, and improving usage life of bearing.

Description

Bearing
Technical field
The utility model 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.
The model utility content
The technical problem that the utility model 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 utility model; 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 the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model embodiment's bearing; 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 utility model.
As shown in Figure 1, the utility model embodiment's bearing 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; The bearing of the utility model; 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 preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

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.
CN 201120326030 2011-09-01 2011-09-01 Bearing Expired - Fee Related CN202266592U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120326030 CN202266592U (en) 2011-09-01 2011-09-01 Bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120326030 CN202266592U (en) 2011-09-01 2011-09-01 Bearing

Publications (1)

Publication Number Publication Date
CN202266592U true CN202266592U (en) 2012-06-06

Family

ID=46157389

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120326030 Expired - Fee Related CN202266592U (en) 2011-09-01 2011-09-01 Bearing

Country Status (1)

Country Link
CN (1) CN202266592U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434589A (en) * 2011-09-01 2012-05-02 中国航空动力机械研究所 Bearing
CN105587771A (en) * 2016-02-23 2016-05-18 安徽省宁国顺昌机械有限公司 Bearing long in service life
CN105624569A (en) * 2016-02-23 2016-06-01 安徽省宁国顺昌机械有限公司 High-abrasion bearing
CN105626697A (en) * 2016-02-23 2016-06-01 安徽省宁国顺昌机械有限公司 Rolling bearing with good contact fatigue
CN105757124A (en) * 2016-02-23 2016-07-13 安徽省宁国顺昌机械有限公司 High-toughness and high-rigidity rolling bearing
CN107407334A (en) * 2015-03-03 2017-11-28 新日铁住金株式会社 The manufacture method of ball bearing and ball bearing

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434589A (en) * 2011-09-01 2012-05-02 中国航空动力机械研究所 Bearing
CN102434589B (en) * 2011-09-01 2014-02-12 中国航空动力机械研究所 Bearing
CN107407334B (en) * 2015-03-03 2019-04-05 新日铁住金株式会社 The manufacturing method of ball bearing and ball bearing
CN107407334A (en) * 2015-03-03 2017-11-28 新日铁住金株式会社 The manufacture method of ball bearing and ball bearing
CN105587771A (en) * 2016-02-23 2016-05-18 安徽省宁国顺昌机械有限公司 Bearing long in service life
CN105624569A (en) * 2016-02-23 2016-06-01 安徽省宁国顺昌机械有限公司 High-abrasion bearing
CN105757124A (en) * 2016-02-23 2016-07-13 安徽省宁国顺昌机械有限公司 High-toughness and high-rigidity rolling bearing
CN105757124B (en) * 2016-02-23 2018-07-06 安徽省宁国顺昌机械有限公司 A kind of high tenacity high rigidity rolling bearing
CN105626697B (en) * 2016-02-23 2018-07-06 安徽省宁国顺昌机械有限公司 A kind of good rolling bearing of contact fatigue
CN105587771B (en) * 2016-02-23 2019-03-26 安徽省宁国顺昌机械有限公司 A kind of service life long bearing
CN105626697A (en) * 2016-02-23 2016-06-01 安徽省宁国顺昌机械有限公司 Rolling bearing with good contact fatigue

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120606

Termination date: 20140901

EXPY Termination of patent right or utility model