CN103185073A - Magnetic bearing and method for improving utilization of magnetic energy of magnetic bearing - Google Patents
Magnetic bearing and method for improving utilization of magnetic energy of magnetic bearing Download PDFInfo
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- CN103185073A CN103185073A CN2012100932134A CN201210093213A CN103185073A CN 103185073 A CN103185073 A CN 103185073A CN 2012100932134 A CN2012100932134 A CN 2012100932134A CN 201210093213 A CN201210093213 A CN 201210093213A CN 103185073 A CN103185073 A CN 103185073A
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- suspension bearing
- bearing
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Abstract
The invention relates to a radial attraction type permanent-magnet axial magnetic bearing which is characterized in that two circular ring-shaped permanent magnets are respectively fixed on a bearing inner ring assembly sleeve body and a bearing outer ring assembly sleeve body which are made of non-magnetic materials, wherein part or all of the end faces of the upper and lower ends of the two circular ring-shaped permanent magnets are covered with circular ring-shaped radial magnetic-conduction magnetic yokes and are axially magnetized; and pole faces of the upper and lower circular ring-shaped radial magnetic-conduction magnetic yokes of the circular ring-shaped permanent magnets at both sides of a radial working air gap are enabled to be radially opposite by the radial working air gap and are kept in a lateral structure in a mutually attracting state.
Description
Technical field
The present invention relates to magnetic suspension bearing, especially relate to the permanent magnetism magnetic suspension bearing, it comprises: attraction type permanent magnetism axial magnetic suspension bearing and repulsion type permanent magnetic radial magnetic suspension bearing; The invention still further relates to the setting method of high efficient lateral direction structure permanent magnetism magnetic suspension bearing.
Background technique
In the middle of daily life, especially concerning the personnel of frequent contact permanent magnet, for the cylindrical magnet steel that makes two axial chargings stores together, the strength that is unlikely to Fei Taida again just can be taken away them, always give them and avoid axial adhesive with the side direction adhesive, and when they need be separated, also can adopt a kind of more labour-saving way, exactly: the upper and lower end face upset of one of them cylindrical magnet steel is exchanged, these two cylindrical magnet steel are flicked immediately.This phenomenon all meets the magnetomechanics definition of " same sex is repelled each other, there is a natural attraction between the sexes ", so, the axial magnetic magnet ring that varies in size is being deposited a time-out, the form that overcoat is put in also always adopting is carried out the side direction adhesive with them.But, when these conventional techniques means are referred to the magnetic suspension bearing of side direction structure, just can cause the annular permanent magnet magnetic energy product can not be by all effectively crooked technology drawback appears in utilization and the magnetic line of force in the middle of air-gap magnetic circuit, thereby cause the practicability of side direction structure permanent magnetism magnetic suspension bearing seriously to reduce, up to now, this technological deficiency never by the technology people of related domain cognition, do not see the effective technology scheme that will solve this magnetic energy wasting phenomena yet.
Summary of the invention
The present invention will provide a kind of magnetic suspension bearing that can strengthen annular permanent magnet magnetic energy effective rate of utilization, and described magnetic suspension bearing comprises: radially attraction type permanent magnetism axial magnetic suspension bearing and two fundamental types of radially repulsion type permanent magnetic radial magnetic suspension bearing.Its technological scheme division is as follows:
1, a kind of radially attraction type permanent magnetism axial magnetic suspension bearing, it be with two the upper and lower end end face part or all by ring radially the magnetic conduction yoke covered and be separately fixed at by the round ring magnet of axial charging on the bearing inner race assembly body of making of nonmagnetic substance and bearing outer ring assembly body, thereby and the ring up and down that makes the round ring magnet of working gas gap both sides radially by working gas gap radially radially the pole-face of magnetic conduction yoke form radially relatively that the shortest both magnetic lines of force that make of air gap remain on the state that straight line attracts.
In the present invention, the ring of described radially working gas gap both sides radially the radially pole-face of magnetic conduction yoke align mutually and the axial thickness unanimity; Described ring radially magnetic conduction yoke can also adopt from the one side that deviates from working gas gap and begins to do increasing progressively successively on the axial thickness to the working gas gap direction.
In the present invention, described round ring magnet can also be set directly on the non-magnet material body of internal rotor or external rotor magnetic suspension bearing application apparatus.
In the present invention, can equate also can be unequal for the end area of the round ring magnet of described radially working gas gap both sides.
2, a kind of radially repulsion type permanent magnetic radial magnetic suspension bearing, it be with two on upper and lower end end face top or all by ring radially the magnetic conduction yoke covered and be separately fixed at by the round ring magnet of axial charging on the bearing inner race assembly body of making of nonmagnetic substance and bearing outer ring assembly body, and the ring that makes two round ring magnet upper and lower end by working gas gap radially radially the radially pole-face of magnetic conduction yoke form radially relatively and the mutual repulsion that keeps between the two, radially the magnetic of working gas gap is close to have increased radially repulsion type permanent magnetic radial magnetic suspension bearing effectively.
In the middle of the present invention, the described ring radially pole-face of magnetic conduction yoke is radially relative, and described ring radially magnetic conduction yoke can also adopt on round ring magnet leaves the end position of working gas gap one side and does increasing progressively successively on the axial thickness to working gas gap one side.
In the middle of the present invention, described round ring magnet can also be set directly on the non-magnet material body of internal rotor or external rotor magnetic suspension bearing application apparatus.
In the present invention, the fit system that the round ring magnet of described radially working gas gap both sides also can adopt axial length not wait, but at this moment both stringcourses must radially overlap.
In sum, magnetic suspension bearing of the present invention, by being arranged on the radially enforced guiding effect of magnetic conduction yoke of round ring magnet upper and lower end ring, the magnetic line of force that the round ring magnet axial poles is sent gives the 90 directions transformations of spending, thereby make the magnetic line of force the camber line closure between inside and outside two annular permanent magnets become from a ring enter into after radially the radially pole-face of magnetic conduction yoke passes working gas gap point-blank another ring radially magnetic conduction yoke magnetic pole strength form the flux closure loop of short magnetic circuit, improved the magnetic energy utilization rate of round ring magnet effectively.
Embodiment
Below by specific embodiment magnetic suspension bearing of the present invention is described in further detail:
1, a kind of radially attraction type permanent magnetism axial magnetic suspension bearing, it be with two the upper and lower end end face part by ring radially the magnetic conduction yoke covered and be separately fixed at by the round ring magnet of axial charging on the bearing inner race assembly body of making of nonmagnetic substance and bearing outer ring assembly body, and the ring up and down that makes the round ring magnet of working gas gap both sides radially by working gas gap radially radially the magnetic conduction yoke form radially relatively and make both remain on the state that attracts each other.
2, a kind of radially repulsion type permanent magnetic radial magnetic suspension bearing, it be with two on upper and lower end end face top by ring radially the magnetic conduction yoke covered and be separately fixed at by the round ring magnet of axial charging on the bearing inner race assembly body of making of nonmagnetic substance and bearing outer ring assembly body, and the ring that makes two round ring magnet upper and lower end by working gas gap radially radially the radially pole-face of magnetic conduction yoke form radially relatively and the mutual repulsion that keeps between the two.
Claims (8)
1. radially attraction type permanent magnetism axial magnetic suspension bearing, it be with two the upper and lower end end face part or all by ring radially the magnetic conduction yoke covered and be separately fixed at by the round ring magnet of axial charging on the bearing inner race assembly body of making of nonmagnetic substance and bearing outer ring assembly body, and the ring up and down that makes the round ring magnet of working gas gap both sides radially by working gas gap radially radially the pole-face of magnetic conduction yoke form radially relative, thereby obtain Internal and external cycle radially the shortest the and magnetic line of force straight line of the non-iron circuit of opposite side attract the axial magnetic suspension bearing of state.
2. according to the described radially attraction type permanent magnetism of claim 1 axial magnetic suspension bearing, it is characterized in that: the ring of the described radially working gas gap both sides radially radially pole-face of magnetic conduction yoke aligns and the axial thickness unanimity mutually; Described ring radially magnetic conduction yoke can also adopt from the one side that deviates from working gas gap and begins to do increasing progressively successively on the axial thickness to the working gas gap direction.
3. according to the described radially attraction type permanent magnetism of claim 1 axial magnetic suspension bearing, it is characterized in that: described round ring magnet can also be set directly on the non-magnet material body of internal rotor or external rotor magnetic suspension bearing application apparatus.
4. according to the described radially attraction type permanent magnetism of claim 1 axial magnetic suspension bearing, it is characterized in that: the end area of the round ring magnet of described radially working gas gap both sides equates also can be unequal.
5. radially repulsion type permanent magnetic radial magnetic suspension bearing, it be with two on upper and lower end end face top or all by ring radially the magnetic conduction yoke covered and be separately fixed at by the round ring magnet of axial charging on the bearing inner race assembly body of making of nonmagnetic substance and bearing outer ring assembly body, and the ring that makes two round ring magnet upper and lower end by working gas gap radially radially the radially pole-face of magnetic conduction yoke form radially relatively and keep the radial magnetic bearing of the side direction structure that both magnetic forces repel mutually.
6. according to the described radially repulsion type permanent magnetic radial of claim 5 magnetic suspension bearing, it is characterized in that: the described ring radially pole-face of magnetic conduction yoke is radially relative, and described ring radially magnetic conduction yoke can also adopt on round ring magnet leaves the end position of working gas gap one side and does increasing progressively successively on the axial thickness to working gas gap one side.
7. according to the described radially repulsion type permanent magnetic radial of claim 5 magnetic suspension bearing, it is characterized in that: described round ring magnet can also be set directly on the non-magnet material body of internal rotor or external rotor magnetic suspension bearing application apparatus.
8. according to the described radially repulsion type permanent magnetic radial of claim 5 magnetic suspension bearing, it is characterized in that: the fit system that the round ring magnet of described radially working gas gap both sides also can adopt axial length not wait, but at this moment both waist neutrality lines must radially overlap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093213.4A CN103185073B (en) | 2012-01-02 | 2012-03-26 | A kind of magnetic suspension bearing and the method for improving magnetic suspension bearing magnetic energy utilization |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009700.8 | 2012-01-02 | ||
| CN2012100097008 | 2012-01-02 | ||
| CN201210009700 | 2012-01-02 | ||
| CN201210093213.4A CN103185073B (en) | 2012-01-02 | 2012-03-26 | A kind of magnetic suspension bearing and the method for improving magnetic suspension bearing magnetic energy utilization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103185073A true CN103185073A (en) | 2013-07-03 |
| CN103185073B CN103185073B (en) | 2017-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210093213.4A Active CN103185073B (en) | 2012-01-02 | 2012-03-26 | A kind of magnetic suspension bearing and the method for improving magnetic suspension bearing magnetic energy utilization |
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| CN (1) | CN103185073B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098687A (en) * | 2019-06-20 | 2019-08-06 | 蚁人(苏州)机械科技有限公司 | Underwater robot magnetic suspension bearing servo motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072370A (en) * | 1976-08-24 | 1978-02-07 | Spectra-Flux, Inc. | Radial magnetic bearing |
| JPS54139007A (en) * | 1978-04-20 | 1979-10-29 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic bearing mechanism for small rotor |
| CN101000070A (en) * | 2006-11-02 | 2007-07-18 | 刘新广 | Permanent magnetism and turbine composite bearing |
| CN101539166A (en) * | 2009-04-16 | 2009-09-23 | 王铮 | Magnetic suspension bearing |
| CN102118125A (en) * | 2010-01-01 | 2011-07-06 | 张玉宝 | Magnetic suspension supporting system, magnetic suspension bearing, compound magnetic suspension bearing, magnetic force centering bearing and rotor bias magnet gravity-reducing device |
-
2012
- 2012-03-26 CN CN201210093213.4A patent/CN103185073B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072370A (en) * | 1976-08-24 | 1978-02-07 | Spectra-Flux, Inc. | Radial magnetic bearing |
| JPS54139007A (en) * | 1978-04-20 | 1979-10-29 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic bearing mechanism for small rotor |
| CN101000070A (en) * | 2006-11-02 | 2007-07-18 | 刘新广 | Permanent magnetism and turbine composite bearing |
| CN101539166A (en) * | 2009-04-16 | 2009-09-23 | 王铮 | Magnetic suspension bearing |
| CN102118125A (en) * | 2010-01-01 | 2011-07-06 | 张玉宝 | Magnetic suspension supporting system, magnetic suspension bearing, compound magnetic suspension bearing, magnetic force centering bearing and rotor bias magnet gravity-reducing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098687A (en) * | 2019-06-20 | 2019-08-06 | 蚁人(苏州)机械科技有限公司 | Underwater robot magnetic suspension bearing servo motor |
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| Publication number | Publication date |
|---|---|
| CN103185073B (en) | 2017-08-25 |
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Effective date of registration: 20191122 Address after: 314205 west section of Jinsha Road, Xincang Town, Pinghu City, Jiaxing City, Zhejiang Province Patentee after: JIAXING NEWSTAR MOTOR CO., LTD. Address before: 050305, Hebei, Shijiazhuang province Jingxing County Granville Town, Beiping village, No. 156 hair rising Street Patentee before: Zhang Yubao |
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