CN102011801B - Method for manufacturing integral antimagnetic bearing with preload - Google Patents
Method for manufacturing integral antimagnetic bearing with preload Download PDFInfo
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- CN102011801B CN102011801B CN2010105578541A CN201010557854A CN102011801B CN 102011801 B CN102011801 B CN 102011801B CN 2010105578541 A CN2010105578541 A CN 2010105578541A CN 201010557854 A CN201010557854 A CN 201010557854A CN 102011801 B CN102011801 B CN 102011801B
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- bearing
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- datum end
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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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
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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
- F16C2229/00—Setting preload
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- Support Of The Bearing (AREA)
Abstract
The invention discloses a method for manufacturing an integral antimagnetic bearing with a preload. An outer bearing ring is connected with a bearing block into a whole, so that the strength of the bearing is improved, the assembly link is reduced, and the whole machining accuracy and the assembling accuracy of the bearing are improved; inner bearing rings, a rolling ball and a retainer are made of nonmagnetic materials, and the aim of resisting magnetism and not needing to regulate the preload is fulfilled. During actual use, a speed-stabilizing current value of a driving motor is low, so that the high-accuracy using requirement of a user is met; and the dimension between two inner bearing rings is calculated in advance, so that an accurate preload is automatically generated after the inner bearing rings are assembled, and the aim is fulfilled by arranging the bearing on a rotor shaft of the driving motor only.
Description
Technical field
The present invention relates to a kind of making method of integrated type high-precision bearing assembly, particularly a kind of making method that belongs to the integrated type band preload antimagnetic bearing that under special operation condition, uses.
Background technique
The bearing that uses on the highi degree of accuracy astrovehicle target seeker requires high especially to the antimagnetic requirement of bearing and the preload of bearing pairing.Because the bearing that uses on the highi degree of accuracy astrovehicle target seeker need be worked under the high magnetic fields condition, magnetic field is very big to the running influence of bearing, and can make the bearing rotational resistance become electric current big, drive motor increases, and shortens between inertial time; In addition, pairing bearing preload correctness also directly influences flexibility, stability and the reliability of bearing, thereby directly has influence on the guidance accuracy and the reliability of astrovehicle.
At present, the bearing that uses on the existing highi degree of accuracy astrovehicle target seeker, the diamagnetic poor performance of its bearing, and need adopt the ultra-thin-wall structure simultaneously; As shown in Figure 1, bearing wall thickness COEFFICIENT K=L/H, L=(bearing outside diameter D2+ bearing aperture D1 sum)/2, H=(bearing outside diameter D2-+ bearing aperture D1's is poor)/2, bearing wall thickness values of factor K is big more, and the bearing relative wall thickness is just thin more, and difficulty of processing is big more; The bearing wall thickness values of factor K that similar standard thin-walled profile shaft holds is between 6 to 7, and ultra-thin-wall bearing wall thickness COEFFICIENT K=11.6 of the bearing that uses on the existing highi degree of accuracy astrovehicle target seeker.
For these reasons; The assembling of the bearing that uses on the existing highi degree of accuracy astrovehicle target seeker and add the preload difficulty; Supporting precision is low, makes the speed stabilizing current value of drive motor big, causes the astrovehicle guidance accuracy ranging in low level always; Influenced product and developed, also influenced machinery and national defense industry development to a certain extent to highi degree of accuracy.
As shown in Figure 2; The bearing that uses on the existing highi degree of accuracy astrovehicle target seeker; It comprises the thin-wall bearing 20 of bearing support 10 and a pair of pairing, and the outer shroud 21 of thin-wall bearing 20 fixedly contacts and is fixed in the bearing support 10 through outer shroud fastening screw nut 12 with the inwall 11 of bearing support 10.The interior ring 22 of thin-wall bearing 20 is connected with the rotor shaft 30 of drive motor, and fixes through interior ring fastening screw nut 13.
As shown in Figure 3, the preload of the bearing that uses on the existing highi degree of accuracy astrovehicle target seeker is to realize that through the thickness of the pad 40 between the outer shroud 21 that changes thin-wall bearing 20 do like this and both install and remove trouble, precision is not high again, can't reach high-precision requirement; Simultaneously, thin-wall bearing 20 all is to adopt 9Cr18 to make antimagnetic poor-performing.
In sum, to the defective of existing technology, need a kind of making method of integrated type band preload antimagnetic bearing especially, with the problem of mentioning more than solving.
Summary of the invention
The object of the present invention is to provide a kind of making method of integrated type band preload antimagnetic bearing; Solve the defective of above-mentioned existing technology; Can realize purpose antimagnetic and that need not to regulate preload, the speed stabilizing current value of drive motor is little when reality is used, and reaches the high-precision usage requirement of user.
The technical problem that the present invention solved can adopt following technological scheme to realize:
A kind of making method of integrated type band preload antimagnetic bearing is characterized in that it comprises the steps:
(1) makes ring in the pair of bearings, on the outer wall of bearing inner ring, offer first raceway;
(2) make bearing support, on the inwall of bearing support, offer a pair of second raceway, second raceway is corresponding each other with first raceway;
(3) bearing inner ring of the non-datum end face in assembled shaft bearing bottom;
(4) bearing inner ring of assembled shaft bearing upper level end face;
(5) through interior ring fastening screw nut ring in the pair of bearings is fixed on rotor shaft.
In one embodiment of the invention; Said bearing inner ring adopts G60 not have the magnetic material and processes; Spin adopts stupalith to process; Retainer adopts the polyimide material of polymer strip self-lubricating property to process, and makes not form field circuit between bearing inner ring and the bearing support, can not receive magnetic interference when turning round relatively.
In one embodiment of the invention, when loading preload, it comprises the steps:
(1) bearing inner ring of the non-datum end face of assembled shaft bearing, and measuring under specified preload N, the upper-end surface of the bearing inner ring of non-datum end face between the datum end face of bearing support apart from e;
(2) unload the bearing inner ring of non-datum end face earlier, refill the bearing inner ring of the datum end face of joining bearing support, and measure under specified preload N, the lower end surface of the bearing inner ring of datum end face and the datum end face of bearing support apart from f;
(3) when the upper-end surface of the bearing inner ring that equals non-datum end face apart from f of the datum end face of the lower end surface of the bearing inner ring of datum end face and bearing support between the datum end face of bearing support apart from e the time; Refill the bearing inner ring of non-datum end face, just confirm ring and the fashionable specified preload that produces the N size in two bearings.
In one embodiment of the invention; When the datum end face of the lower end surface of the bearing inner ring of datum end face and bearing support apart from f greater than the upper-end surface of the bearing inner ring of non-datum end face between the datum end face of bearing support apart from e the time; Mill, the upper-end surface of grinding the bearing inner ring of datum end face, the upper-end surface of bearing inner ring that equals non-datum end face apart from f of datum end face of lower end surface and bearing support of bearing inner ring that makes datum end face is to accurately equating apart from e between the datum end face of bearing support.
The making method of integrated type band preload antimagnetic bearing of the present invention joins outer race and bearing support together, increases the intensity of bearing, reduces the assembling link, improves bearing integral machining accuracy and assembly precision; Use no magnetic material to make bearing inner ring, spin and retainer, realize purpose antimagnetic and that need not to regulate preload, when reality was used, the driving current of drive motor is stable to descend, and reaches the high-precision usage requirement of user; Between two bearing inner rings, calculated size in advance, made bearing inner ring assembling back generate an accurate preload automatically,, realized the object of the invention as long as bearing is installed on the rotor shaft.
Characteristics of the present invention can consult this case graphic and below better mode of execution detailed description and obtain to be well understood to.
Description of drawings
Fig. 1 is the structural representation of existing thin-wall bearing;
Fig. 2 is the structural representation of the bearing that uses on the existing highi degree of accuracy astrovehicle target seeker;
Fig. 3 is the local enlarged diagram among Fig. 2;
Fig. 4 is the structural representation of integrated type band preload antimagnetic bearing of the present invention;
Fig. 5 is the structural representation of bearing support of the present invention;
Fig. 6 is the structural representation of bearing inner ring of the present invention;
Fig. 7 is the structural representation of the non-datum end face bearing inner ring of assembling of the present invention;
Fig. 8 is the structural representation of reference for assembling end face bearing inner ring of the present invention;
Fig. 9 is the structural representation after the assembling of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
The making method of integrated type band preload antimagnetic bearing of the present invention, it comprises the steps:
(1) makes ring 200 in the pair of bearings, on the outer wall 210 of bearing inner ring 200, offer first raceway 220;
(2) make bearing support 100, it is corresponding each other with first raceway 220 on the inwall 110 of bearing support 100, to offer a pair of second raceway, 120, the second raceways 120;
(3) bearing inner ring 200 of the non-datum end face 140 in assembled shaft bearing 100 bottoms;
(4) bearing inner ring 200 of assembled shaft bearing 100 upper level end faces 130;
(5) through interior ring fastening screw nut 600 ring 200 in the pair of bearings is fixed on the rotor shaft 500.
Like Fig. 4, Fig. 5, shown in Figure 6; Integrated type band preload antimagnetic bearing according to making method making of the present invention; It comprises the interior ring 200 of bearing support 100 and pair of bearings; The outer wall 210 of said bearing inner ring 200 is provided with first raceway 220; Be provided with second raceway 120 corresponding to first raceway 220 on the outer wall 210 of said bearing inner ring 200 on the inwall 110 of said bearing support 100, be provided with spin 300 between said first raceway 220 and second raceway 120, be provided with retainer 400 between the said spin 300; Rotor axis of electric 500 is connected mutually with bearing inner ring 200, and fixes through interior ring fastening screw nut 600.
In the present invention; Said bearing inner ring 200 adopts G60 not have the magnetic material and processes; Said spin 300 adopts stupalith to process; Said retainer 400 adopts the polyimide material of polymer strip self-lubricating property to process, and makes between interior ring 200 of axle bush and the bearing support 100 and does not form field circuit, can not receive magnetic interference when turning round relatively.
Integrated type band preload antimagnetic bearing of the present invention when loading preload, at first, between two second raceways 120 of measurement axis bearing 100 apart from distance b (referring to Fig. 5) between the datum end face 130 of a and second raceway 120 and bearing support 100.
Then, first raceway 220 of first raceway 220 of measuring bearing inner ring 200 and the distance c of upper-end surface 230 and bearing inner ring 200 and lower end surface 240 apart from d, and mark and record (referring to Fig. 6).
As shown in Figure 7, the bearing inner ring 200 of the non-datum end face 140 of assembled shaft bearing 100, and measuring under specified preload N, the upper-end surface 230 of the bearing inner ring 200 of non-datum end face 140 between the datum end face 130 of bearing support 100 apart from e.
As shown in Figure 8; During the bearing inner ring 200 of the datum end face 130 of assembled shaft bearing 100; Unload the bearing inner ring 200 of non-datum end face 140 earlier, measure again under specified preload N, the datum end face 130 of the lower end surface of the bearing inner ring 200 of datum end face 130 240 and bearing support 100 apart from f.
When the upper-end surface 230 of the bearing inner ring 200 that equals non-datum end face 140 apart from f of the datum end face 130 of the lower end surface 240 of the bearing inner ring 200 of datum end face 130 and bearing support 100 between the datum end face 130 of bearing support 100 apart from e the time; Refill the bearing inner ring 200 of non-datum end face 140, just confirm ring 200 and the fashionable specified preload that produces the N size in two bearings.(referring to Fig. 9)
When the datum end face 130 of the lower end surface 240 of the bearing inner ring 200 of datum end face 130 and bearing support 100 apart from f greater than the upper-end surface 230 of the bearing inner ring 200 of non-datum end face 140 between the datum end face 130 of bearing support 100 apart from e the time, available mill, the method for grinding accurately equate it.
In the rotor shaft 500 of drive motor is packed two bearings into behind the ring 200, and with interior ring fastening screw nut 600 and tightly the time, the preload of bearing has also just produced (see figure 4).
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention, and under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications; These variations and improvement all fall in the scope of the invention that requires protection, and the present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. the making method of an integrated type band preload antimagnetic bearing is characterized in that it comprises the steps:
(1) makes ring in the pair of bearings, on the outer wall of bearing inner ring, offer first raceway;
(2) make bearing support, on the inwall of bearing support, offer a pair of second raceway, second raceway is corresponding each other with first raceway;
(3) bearing inner ring of the non-datum end face in assembled shaft bearing bottom;
(4) bearing inner ring of assembled shaft bearing upper level end face;
(5) through interior ring fastening screw nut ring in the pair of bearings is fixed on the rotor shaft;
When loading preload, comprise the steps:
(1) bearing inner ring of the non-datum end face of assembled shaft bearing, and measuring under specified preload N, the upper-end surface of the bearing inner ring of non-datum end face between the datum end face of bearing support apart from e;
(2) during the bearing inner ring of the datum end face of assembled shaft bearing, unload the bearing inner ring of non-datum end face earlier, measure again under specified preload N, the lower end surface of the bearing inner ring of datum end face and the datum end face of bearing support apart from f;
(3) when the upper-end surface of the bearing inner ring that equals non-datum end face apart from f of the datum end face of the lower end surface of the bearing inner ring of datum end face and bearing support between the datum end face of bearing support apart from e the time; Refill the bearing inner ring of non-datum end face, just confirm ring and the fashionable specified preload that produces the N size in two bearings.
2. the making method of integrated type band preload antimagnetic bearing as claimed in claim 1; It is characterized in that; Said bearing inner ring adopts G60 not have the magnetic material and processes, and spin adopts stupalith to process, and retainer adopts the polyimide material of polymer strip self-lubricating property to process; Make not form field circuit between bearing inner ring and the bearing support, can not receive magnetic interference when turning round relatively.
3. the making method of integrated type band preload antimagnetic bearing as claimed in claim 1; It is characterized in that; When the datum end face of the lower end surface of the bearing inner ring of datum end face and bearing support apart from f greater than the upper-end surface of the bearing inner ring of non-datum end face between the datum end face of bearing support apart from e the time; Mill, the upper-end surface of grinding the bearing inner ring of datum end face, the upper-end surface of bearing inner ring that equals non-datum end face apart from f of datum end face of lower end surface and bearing support of bearing inner ring that makes datum end face is to accurately equating apart from e between the datum end face of bearing support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105578541A CN102011801B (en) | 2010-11-23 | 2010-11-23 | Method for manufacturing integral antimagnetic bearing with preload |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105578541A CN102011801B (en) | 2010-11-23 | 2010-11-23 | Method for manufacturing integral antimagnetic bearing with preload |
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| Publication Number | Publication Date |
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| CN102011801A CN102011801A (en) | 2011-04-13 |
| CN102011801B true CN102011801B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105578541A Active CN102011801B (en) | 2010-11-23 | 2010-11-23 | Method for manufacturing integral antimagnetic bearing with preload |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107327504B (en) * | 2017-08-18 | 2020-02-18 | 中国航发贵州黎阳航空动力有限公司 | Mounting tool for fulcrum main bearing of central transmission device of aero-engine |
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| CN101490432A (en) * | 2006-07-10 | 2009-07-22 | Skf公司 | A bearing assembly with a protective cover for an encoder |
| CN201502629U (en) * | 2009-08-15 | 2010-06-09 | 山东华泰轴承制造有限公司 | Flanged biserial angular-contact ball ABS bearing unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2825765B1 (en) * | 2001-06-06 | 2003-09-26 | Eurocopter France | BALL BEARING WITH TWO DISSYMMETRIC ROWS OF BALLS WITH ANGULAR CONTACT, AND MOUNTING OF OVERHEAD SPROCKETS ON SUCH A BEARING |
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2010
- 2010-11-23 CN CN2010105578541A patent/CN102011801B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101490432A (en) * | 2006-07-10 | 2009-07-22 | Skf公司 | A bearing assembly with a protective cover for an encoder |
| CN201502629U (en) * | 2009-08-15 | 2010-06-09 | 山东华泰轴承制造有限公司 | Flanged biserial angular-contact ball ABS bearing unit |
Non-Patent Citations (3)
| Title |
|---|
| 周桂欣.国内外陶瓷轴承的发展现状.《陶瓷研究与职业教育》.2003,第1卷(第4期),40-42. * |
| 林枫,从兵兵,黄晓辉.轴承常用材料概述.《哈尔滨轴承》.2005,第26卷(第2期),41-43. * |
| 葛世东，梁波，王子君.聚四氟乙烯基固体润滑保持架材料.《轴承》.2003,(第2期),34-37. * |
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| CN102011801A (en) | 2011-04-13 |
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Address after: 201108 part of the second floor (15-1-b, 15-1-c, 15-1-d, 15-1-e) of building 15, 4399 Yindu Road, Minhang District, Shanghai 201108 Patentee after: Shanghai Tianhong Miniature Bearing Co.,Ltd. Address before: 200002 No. 24 East Bang Road, Shanghai, Huangpu District Patentee before: SHANGHAI TIANHONG MICRO BEARING Research Institute |