CN104358788A - Device for locking high-speed bearing - Google Patents
Device for locking high-speed bearing Download PDFInfo
- Publication number
- CN104358788A CN104358788A CN201410604595.1A CN201410604595A CN104358788A CN 104358788 A CN104358788 A CN 104358788A CN 201410604595 A CN201410604595 A CN 201410604595A CN 104358788 A CN104358788 A CN 104358788A
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- China
- Prior art keywords
- lock washer
- locking
- speed bearing
- circlip
- projection
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Abstract
The invention discloses a device for locking a high-speed bearing. The device comprises a locking screw nut, a lock washer and an elastic collar, wherein the locking screw nut comprises a main body which is screwed with outer threads in a shaft; first anti-loose teeth parallel to the axis are arranged on the outer threads; a plurality of convex blocks which face outwards in the radial direction and the axial direction are arranged on the outer circumference wall of the main body; a groove for accommodating the elastic collar is formed in the inner wall of the axial part of the convex blocks; a plurality of radial bosses are formed in the outer circumference wall of the lock washer; a notch for accommodating the radial bosses is formed between every two adjacent convex blocks; second anti-loose teeth meshed with the first anti-loose teeth are arranged on the inner side wall of the lock washer; the outer diameter of the lock washer is smaller than or equal to the largest distance between the inner walls of the parts facing outwards in the axial direction, of two convex blocks; the distance between the inner side walls close to the end parts of the parts facing outwards in the axial direction, of the convex blocks, of the groove to the end surface where the main body is connected with the convex blocks, is greater than or equal to the sum of the thicknesses of the lock washer and the elastic collar. The device has the advantages that the locking moment is not changed.
Description
Technical field
The invention relates to a kind of locking device for high-speed bearing (referring to that rotational speed reaches 60 metre per second (m/s)s and above bearing), for the axial locking of high-speed bearing, be specially adapted to the position that the torsional property of line shaft is had higher requirements, belong to motivation transfer motion part critical component, prevent bearing from moving axially when High Rotation Speed, the invention belongs to universal machine technology.
Background technique
Along with the continuous increase of general equipment demand, the application of high-speed bearing in equipment is just more and more extensive, the demand of the axial locking problem of the high-speed bearing simultaneously better solved is more and more urgent, the fast development of utility helicopter, depopulated helicopter, impel each R&D institution to drop into a large amount of manpower and materials in the critical component of axle (locking of the bearing in the rotor shaft of particularly aircraft) with locking to study, also encourage to innovate critical component and improve simultaneously.
The locking of primitive axis high-speed bearing beats guard ring with locking nut to lock, major way is on axle, open 9 grooves, then on locking nut, beat uniform 8 holes, with the numerical value tightening nut that locking nut specifies by technical requirements by torque spanner, and then the groove of adjusting nut hole and transmission shaft aligns, then with the groove of guard ring by locking nut hole and transmission shaft, locking nut is fixed.This device shortcoming also will readjust nut after tight moment measures to align to make the groove of nut bore and transmission shaft, because 9 grooves on axle and 8 holes of nut at least need, a pair hole slot is corresponding could be fixed with guard ring, and the change of locking torque in the process of adjusting nut, will inevitably be caused, numerical value in locking torque and technical requirements is caused to produce deviation, and the efficiency of assembling is also lower, the structure of whole locking device is not compact, is inconvenient to keep in repair; Another shortcoming is because slot on axle, reduces the torsional property of axle, greatly reduces working life and the Safety performance of axle.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of prior art, a kind of locking torque is provided not need to change, efficiency of assembling is high, and the torsional property of axle is not affected, and the device for the locking of axle high-speed bearing that compact structure, lightweight, easy for installation, maintenance are good, safe and reliable.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of device for high-speed bearing locking, and it is characterized in that, this device comprises locking nut, lock washer and circlip; Described locking nut comprises body, and the inwall of body is provided with the internal thread for screwing with the outside thread installed on the axle of high-speed bearing, and the outside thread on described axle is provided with the first locking teeth that is some and axis being parallel; The periphery wall of described body is provided with multiple equally distributed radially outward and axially outside projection, the inwall of the part that projection is axially outside is provided with the groove for accommodating circlip; The periphery wall of described lock washer is evenly provided with multiple radial boss, between adjacent two projections, is configured for the breach of accommodating radial boss; The madial wall of described lock washer is provided with the second locking teeth that is some and axis being parallel, and the second described locking teeth is meshed with the first locking teeth; Described lock washer external diameter be less than or equal to the axially outside part of two projections inwall between ultimate range (i.e. radial distance maximum between the madial wall of parts that two projection axis are outside axially can be encased in the breach that locking nut adjacent projections formed smoothly to make the boss of lock washer); Distance between the madial wall of described groove near the axial outwards end of part of projection connects projection place end face to body is more than or equal to the thickness sum (to be installed to smoothly in groove to make circlip and mutually to push against with lock washer body) of lock washer and circlip.
Adopt said structure, first outside thread locking nut torque spanner being tightened in the axle after installing bearing by the numerical value that technical requirements specifies realizes coordinate, then aim at according to the intermeshing locking teeth that lock washer and axle outside thread are arranged and lock washer is installed and in breach boss being placed in form between adjacent projections, and then circlip is snapped onto in the groove of locking nut (in order to anti-backstop back-up ring in use produces corrosion, so select stainless steel material, and this stainless steel material is the commercially available material that have employed the heat treatment process of flow harden and Austenite strengthening, the performance making this back-up ring have being dismounted for multiple times can also to hold its shape.Circlip, once load in groove, does not need to keep elastic force always, as long as can keep its due shape, would not deviate from, just can stop the axial displacement of lock washer, thus play the effect of integral locking in groove.When this circlip is installed, back-up ring need only be opened on one side, its one end is made to be introduced in groove, then back-up ring is rotated, all enter to remaining part) realize axial locking to lock washer, cooperatively interacting now due to locking teeth and boss, makes locking nut also can not rotate in a circumferential direction, thus effectively ensure that the accuracy of locking nut moment, achieve the axial locking to bearing.
As preferably, described lock washer external diameter be less than the axially outside part of two projections inwall between ultimate range.Adopt said structure, to ensure that the boss of lock washer axially can be encased in the breach that locking nut adjacent projections formed smoothly further, realize the axial locking to bearing.
As preferably, described groove near projection axially outwards the madial wall of the end of part to connect projection place to body end face between distance equal the thickness sum of lock washer and circlip.Adopt this structure can realize closely cooperating between lock washer and circlip, compress, effectively ensure that locking nut can not rotate in a circumferential direction further, thus more firm locking bearing.
As preferably, it is 0.3175 with the modulus of the second locking teeth of axis being parallel that the madial wall of described lock washer is provided with some; Adopt this modulus one can fully ensure lock washer and axle accurately and closely cooperate, prevent locking nut from rotating in a circumferential direction; Two, the setting of this modulus also can not cause the outside thread intensity of axle to reduce, screw inefficacy.As preferably, described circlip is by the spiral back-up ring of double-layer stainless steel coiling.And stainless steel material is 0Cr18Ni9; Adopt the circlip of this structure can increase the repeated removal number of times of back-up ring, avoid moving axially of lock washer.
As preferably, described lock washer comprises main body portion and axially extended boss part integrated with main body portion, adopt this structure, extend that lock washer inwall arranges with length that is the second locking teeth of axis being parallel, thus strengthen coupling mechanism force that locking nut is rotated in a circumferential direction further.
In addition, the external diameter size of above-mentioned lock washer boss part will with the equal and opposite in direction of the internal diameter of circlip, thus ensure circlip to be snapped in groove and fit tight with lock washer.
Accompanying drawing illustrates:
Fig. 1 lifting airscrew axle bearing of the present invention locking device assembling schematic diagram.
The axial sectional view structural representation of Fig. 2 Fig. 1.
Fig. 3 locking nut schematic diagram of the present invention.
The axial sectional view structural representation of Fig. 4 Fig. 3.
Fig. 5 lock washer of the present invention.
The side view of Fig. 6 lock washer.
The A portion enlarged view of Fig. 7 Fig. 5.
Fig. 8 elastic collar structure schematic diagram of the present invention.
The side view structural representation of Fig. 9 Fig. 7.
The erection drawing structural representation of Figure 10 locking device of the present invention.
Embodiment:
Following example is for illustration of embody rule of the present invention, but the present invention is not limited only to this.
As shown in drawings: a kind of device for high-speed bearing locking, a kind of device for high-speed bearing locking, it is characterized in that, this device comprises locking nut 1, lock washer 2 and circlip 3; Described locking nut 1 comprises body 1.1, and the inwall of body is provided with the internal thread for screwing with the outside thread installed on the axle 4 of high-speed bearing, and the outside thread on described axle 4 is provided with the first locking teeth 4.1 that is some and axis being parallel; The periphery wall of described body 1.1 is provided with multiple equally distributed radially outward and axially outside projection 1.2, the inwall of the part that projection 1.2 is axially outside is provided with the groove 1.3 for accommodating circlip; The periphery wall of described lock washer 2 is evenly provided with multiple radial boss 2.1, between adjacent two projections 1.2, is configured for the breach of accommodating radial boss 2.1; The madial wall of described lock washer 2 is provided with the second locking teeth 2.2 that is some and axis being parallel, and the second described locking teeth 2.2 is meshed with the first locking teeth 4.1; Described lock washer 2 external diameter be less than or equal to the axially outside part of two projections inwall between ultimate range (axially can be encased in smoothly in the breach that locking nut adjacent projections formed to make the boss of lock washer); Distance (D as shown in Figure 4) between the madial wall of described groove 1.3 near the axial outwards end of part of projection connects projection place end face to body is more than or equal to thickness (as shown in Figure 9: d1 is the thickness of circlip, as shown in Figure 6: d2 is the thickness of the lock washer) sum (to be installed to smoothly in groove to make circlip and mutually to push against with lock washer body) of lock washer and circlip.
Adopt said structure, first outside thread locking nut torque spanner being tightened in the axle after installing bearing by the numerical value that technical requirements specifies realizes coordinate, then aim at according to the intermeshing locking teeth that lock washer and axle outside thread are arranged and lock washer is installed, and in breach boss being placed in form between adjacent projections, and then rotate back-up ring in groove circlip one end being snapped onto locking nut to all snapping in groove thus realizing the axial locking to lock washer, cooperatively interacting now due to locking teeth and boss, locking nut also can not be rotated in a circumferential direction, thus effectively ensure that the accuracy of locking nut moment, achieve the axial locking to bearing.
Lock washer of the present invention external diameter be less than the axially outside part of two projections inwall between ultimate range.Adopt said structure, to ensure that the boss of lock washer axially can be encased in the breach that locking nut adjacent projections formed smoothly further, realize the axial locking to bearing.
Distance between the madial wall of groove of the present invention near the axial outwards end of part of projection connects projection place end face to body equals the thickness sum of lock washer and circlip.Adopt this structure can realize closely cooperating between lock washer and circlip, compress, effectively ensure that locking nut can not rotate in a circumferential direction further, thus more firm locking bearing.
It is 0.3175 with the modulus of the second locking teeth of axis being parallel that the madial wall of lock washer of the present invention is provided with some; Adopt this modulus one can fully ensure lock washer and axle accurately and closely cooperate, prevent locking nut from rotating in a circumferential direction; Two, the setting of this modulus also can not cause the outside thread intensity of axle to reduce, screw inefficacy.
Circlip of the present invention is by the spiral back-up ring of double-layer stainless steel coiling.And stainless steel material is 0Cr18Ni9; Adopt the circlip of this structure can increase the repeated removal number of times of back-up ring, avoid moving axially of lock washer.
Lock washer of the present invention, as seen in figs. 5-6: comprise main body portion 2.3 and axially extended boss part 2.4 integrated with main body portion, adopt this structure, extend that lock washer inwall arranges with length that is the second locking teeth of axis being parallel, thus strengthen coupling mechanism force that locking nut is rotated in a circumferential direction further.
The thickness of the above-mentioned lock washer of the present invention is the thickness of main body portion 2.3, and the external diameter of lock washer is the external diameter of main body portion 2.3.
Claims (7)
1., for a device for high-speed bearing locking, it is characterized in that, this device comprises locking nut (1), lock washer (2) and circlip (3); Described locking nut comprises body (1.1), the inwall of body (1.1) is provided with the internal thread for screwing with the outside thread installed on the axle (4) of high-speed bearing, and the outside thread on described axle (4) is provided with the first locking teeth (4.1) that is some and axis being parallel; The periphery wall of described body (1.1) is provided with multiple equally distributed radially outward and axially outside projection (1.2), the inwall of the part that projection (1.2) is axially outside is provided with the groove (1.3) for accommodating circlip (3); The periphery wall of described lock washer (2) is evenly provided with multiple radial boss (2.1), between adjacent two projections (1.2), is configured for the breach of accommodating radial boss (2.1); The madial wall of described lock washer (2) is provided with the second locking teeth (2.2) that is some and axis being parallel, and described the second locking teeth (2.2) is meshed with the first locking teeth (4.1); Described lock washer (2) external diameter be less than or equal to the axially outside part of two projections (1.2) inwall between ultimate range; Distance between the madial wall of described groove (1.3) near the axial outwards end of part of projection (1.2) connects projection (1.2) place end face to body (1.1) is more than or equal to the thickness sum of lock washer (2) and circlip (3).
2. the device for high-speed bearing locking according to claim 1, is characterized in that, the external diameter of described lock washer (2) is less than the ultimate range between the inwall of the axially outside part of two projections (1.2).
3. the device for high-speed bearing locking according to claim 1, it is characterized in that, the distance between the madial wall of described groove (1.3) near the axial outwards end of part of projection (1.2) connects projection (1.2) place end face to body (1.1) equals the thickness sum of lock washer (2) and circlip (3).
4. the device for the locking of axle high-speed bearing according to claim 1, it is characterized in that, it is 0.3175 with the modulus of second locking teeth (2.2) of axis being parallel that the madial wall of described lock washer (2) is provided with some.
5. the device for high-speed bearing locking according to claim 1, it is characterized in that, described circlip is by the spiral back-up ring of double-layer stainless steel coiling.
6. the device for high-speed bearing locking according to claim 5, it is characterized in that, described stainless steel is 0Cr18Ni9 stainless steel.
7. the device for the locking of axle high-speed bearing according to claim 1, it is characterized in that, described lock washer (2) comprises main body portion (2.3) and the one-body molded and axially extended boss part (2.4) with main body portion (2.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604595.1A CN104358788A (en) | 2014-10-31 | 2014-10-31 | Device for locking high-speed bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604595.1A CN104358788A (en) | 2014-10-31 | 2014-10-31 | Device for locking high-speed bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104358788A true CN104358788A (en) | 2015-02-18 |
Family
ID=52526082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410604595.1A Pending CN104358788A (en) | 2014-10-31 | 2014-10-31 | Device for locking high-speed bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN104358788A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989734A (en) * | 2015-06-18 | 2015-10-21 | 中国北方车辆研究所 | Shaft fastener |
| CN105003549A (en) * | 2015-06-18 | 2015-10-28 | 中国北方车辆研究所 | Compact locking and looseness-preventing device and dismantling tool thereof |
| CN105196847A (en) * | 2015-10-16 | 2015-12-30 | 北京新能源汽车股份有限公司 | Passenger car and power system thereof |
| CN105333019A (en) * | 2015-11-17 | 2016-02-17 | 珠海格力电器股份有限公司 | Bearing assembly structure |
| CN106350963A (en) * | 2015-07-13 | 2017-01-25 | 安徽聚隆传动科技股份有限公司 | Locking device of washing machine rotation axis |
| CN111577739A (en) * | 2020-05-29 | 2020-08-25 | 中国航发湖南动力机械研究所 | Locking nut anti-loosening device |
| CN112591561A (en) * | 2020-12-08 | 2021-04-02 | 上海骄成机电设备有限公司 | Axial pretension and location structure and coiling equipment of mechanical type tight axle that rises |
| CN112659043A (en) * | 2020-11-20 | 2021-04-16 | 惠阳航空螺旋桨有限责任公司 | Mounting and dismounting tool for bearing of propeller centrifugal speed regulating device |
| CN113483024A (en) * | 2021-07-14 | 2021-10-08 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
| CN113586631A (en) * | 2021-08-02 | 2021-11-02 | 山东泰鑫汽车科技有限公司 | Power transmission mechanism on reinforced hydraulic retarder |
| CN114109996A (en) * | 2021-11-29 | 2022-03-01 | 中国航发沈阳发动机研究所 | Self-locking nut structure |
| CN114542578A (en) * | 2022-02-18 | 2022-05-27 | 中国人民解放军总参谋部第六十研究所 | Thread anti-loosening system |
| CN115126785A (en) * | 2022-06-28 | 2022-09-30 | 福建省闽旋科技股份有限公司 | High-pressure-resistant and high-speed-resistant rotary sealing device |
| CN115949670A (en) * | 2023-03-09 | 2023-04-11 | 中国航发四川燃气涡轮研究院 | Elastic structure for axial compression of bearing |
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| US4505628A (en) * | 1981-03-09 | 1985-03-19 | Meibuhr George C | Bearing locknut |
| CN201916330U (en) * | 2010-11-18 | 2011-08-03 | 宁波乐斯博电子实业有限公司 | Anti-loose fastener |
| CN202484042U (en) * | 2012-03-16 | 2012-10-10 | 中国航空动力机械研究所 | Anti-loosing assembly for shafts and reducer containing assembly |
| CN202646308U (en) * | 2012-06-10 | 2013-01-02 | 徐工集团工程机械股份有限公司科技分公司 | Engineering machinery chassis driving axle annular gear shaft end slack-preventing device |
| CN202971517U (en) * | 2012-10-25 | 2013-06-05 | 洛阳轴研科技股份有限公司 | Anti-loose nut |
| CN203856843U (en) * | 2014-05-28 | 2014-10-01 | 乐清市万达电器汽配有限公司 | Round nut |
| CN204164190U (en) * | 2014-10-31 | 2015-02-18 | 宁波星箭航天机械有限公司 | For the device of high-speed bearing locking |
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2014
- 2014-10-31 CN CN201410604595.1A patent/CN104358788A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4505628A (en) * | 1981-03-09 | 1985-03-19 | Meibuhr George C | Bearing locknut |
| CN201916330U (en) * | 2010-11-18 | 2011-08-03 | 宁波乐斯博电子实业有限公司 | Anti-loose fastener |
| CN202484042U (en) * | 2012-03-16 | 2012-10-10 | 中国航空动力机械研究所 | Anti-loosing assembly for shafts and reducer containing assembly |
| CN202646308U (en) * | 2012-06-10 | 2013-01-02 | 徐工集团工程机械股份有限公司科技分公司 | Engineering machinery chassis driving axle annular gear shaft end slack-preventing device |
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| CN203856843U (en) * | 2014-05-28 | 2014-10-01 | 乐清市万达电器汽配有限公司 | Round nut |
| CN204164190U (en) * | 2014-10-31 | 2015-02-18 | 宁波星箭航天机械有限公司 | For the device of high-speed bearing locking |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989734A (en) * | 2015-06-18 | 2015-10-21 | 中国北方车辆研究所 | Shaft fastener |
| CN105003549A (en) * | 2015-06-18 | 2015-10-28 | 中国北方车辆研究所 | Compact locking and looseness-preventing device and dismantling tool thereof |
| CN106350963A (en) * | 2015-07-13 | 2017-01-25 | 安徽聚隆传动科技股份有限公司 | Locking device of washing machine rotation axis |
| CN106350963B (en) * | 2015-07-13 | 2018-07-13 | 安徽聚隆传动科技股份有限公司 | A kind of locking device of washing machine rotary shaft |
| CN105196847A (en) * | 2015-10-16 | 2015-12-30 | 北京新能源汽车股份有限公司 | Passenger car and power system thereof |
| CN105333019A (en) * | 2015-11-17 | 2016-02-17 | 珠海格力电器股份有限公司 | Bearing assembly structure |
| CN111577739A (en) * | 2020-05-29 | 2020-08-25 | 中国航发湖南动力机械研究所 | Locking nut anti-loosening device |
| CN112659043A (en) * | 2020-11-20 | 2021-04-16 | 惠阳航空螺旋桨有限责任公司 | Mounting and dismounting tool for bearing of propeller centrifugal speed regulating device |
| CN112591561A (en) * | 2020-12-08 | 2021-04-02 | 上海骄成机电设备有限公司 | Axial pretension and location structure and coiling equipment of mechanical type tight axle that rises |
| CN113483024A (en) * | 2021-07-14 | 2021-10-08 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
| CN113483024B (en) * | 2021-07-14 | 2022-06-17 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
| CN113586631A (en) * | 2021-08-02 | 2021-11-02 | 山东泰鑫汽车科技有限公司 | Power transmission mechanism on reinforced hydraulic retarder |
| CN114109996A (en) * | 2021-11-29 | 2022-03-01 | 中国航发沈阳发动机研究所 | Self-locking nut structure |
| CN114542578A (en) * | 2022-02-18 | 2022-05-27 | 中国人民解放军总参谋部第六十研究所 | Thread anti-loosening system |
| CN115126785A (en) * | 2022-06-28 | 2022-09-30 | 福建省闽旋科技股份有限公司 | High-pressure-resistant and high-speed-resistant rotary sealing device |
| CN115126785B (en) * | 2022-06-28 | 2024-03-29 | 福建省闽旋科技股份有限公司 | High-pressure-resistant and high-speed-resistant rotary sealing device |
| CN115949670A (en) * | 2023-03-09 | 2023-04-11 | 中国航发四川燃气涡轮研究院 | Elastic structure for axial compression of bearing |
| CN115949670B (en) * | 2023-03-09 | 2023-06-30 | 中国航发四川燃气涡轮研究院 | Elastic structure for axial compression of bearing |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Jianguo Inventor before: Li Jianguo Inventor before: Zheng Kehui Inventor before: Li Wuli |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI JIANGUO ZHENG KEHUI LI WULI TO: LI JIANGUO |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150218 |
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| RJ01 | Rejection of invention patent application after publication |