CN102518665B - Magnetic suspension bearing - Google Patents
Magnetic suspension bearing Download PDFInfo
- Publication number
- CN102518665B CN102518665B CN201110438398.3A CN201110438398A CN102518665B CN 102518665 B CN102518665 B CN 102518665B CN 201110438398 A CN201110438398 A CN 201110438398A CN 102518665 B CN102518665 B CN 102518665B
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- CN
- China
- Prior art keywords
- annular permanent
- pole iron
- magnet
- rotating shaft
- fixed
- 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
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Classifications
-
- 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
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
- F16C32/0429—Passive magnetic bearings with permanent magnets on both parts repelling each other for both radial and axial load, e.g. conical magnets
- F16C32/0431—Passive magnetic bearings with permanent magnets on both parts repelling each other for both radial and axial load, e.g. conical magnets with bearings for axial load combined with bearings for radial load
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention relates to a magnetic suspension bearing which is characterized in that: the bearing comprises a movable magnet member fixed on a supporting end of a rotating shaft, and a fixed magnet member fixed on a bearing pedestal. The magnetic suspension bearing is specialized in that: the movable magnet member comprises inner annular permanent magnets and inner annular magnetic-conductive pole iron pieces which are sleeved and fixed on the supporting end of the rotating shaft; the inner annular permanent magnets and the inner annular magnetic-conductive pole iron pieces are laminated alternately; magnetic force directions of two adjacent inner annular permanent magnets are opposite to each other, and are parallel to an axial direction of the rotating shaft; the fixed magnet member comprises outer annular permanent magnets and outer annular magnetic-conductive pole iron pieces which are fixed on the bearing pedestal; the outer annular permanent magnets and the outer annular magnetic-conductive pole iron pieces are sleeved outside the inner annular permanent magnets and the inner annular magnetic-conductive pole iron pieces; the outer annular permanent magnets and the outer annular magnetic-conductive pole iron pieces are laminated alternately; magnetic force directions of two adjacent outer annular permanent magnets are opposite to each other, and are parallel to an axial direction of the rotating shaft; an inner annular permanent magnet and an outer annular permanent magnet positioned on a same plane have a same thickness and a same magnetic force direction; and an inner annular magnetic-conductive pole iron piece and an outer annular magnetic-conductive pole iron piece positioned on a same plane have a same thickness. With the magnetic suspension bearing, compared to prior art, radial magnetic suspension can be realized, and the suspension force is strong.
Description
Technical field
The present invention relates to a kind of bearing.
Background technique
The structure of existing magnetic suspension bearing is generally that the magnetic force direction that is fixed on rotating shaft and magnet on bearing support is parallel with the axis of rotating shaft, such magnetic suspension bearing can only axially working in rotating shaft, radially just can not work, determined by magnet character, adopt simple magnet radially adopting magnetic suspension, be not easy technically to realize, enable to realize, be subject to the interference between magnet, maglev magnet is also more weak.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of can realize radial suspension and the large magnetic suspension bearing of suspension effect power.
The present invention realizes like this, comprise the movable magnet member that is fixed on rotating shaft support end, be fixed on the fixed magnets member on bearing support, its specialization is that movable magnet member comprises inner circle annular permanent-magnet body and the interior circular leading pole iron being fixed by socket on rotating shaft support end, inner circle annular permanent-magnet body and interior circular leading pole iron wall stack, the magnetic force direction of adjacent two inner circle annular permanent-magnet bodies contrary and magnetic force direction and rotating shaft parallel to an axis, fixed magnets member comprises cylindrical ring-type permanent magnet and the cylindrical ring-type leading pole iron being fixed on bearing support, cylindrical ring-type permanent magnet and cylindrical ring-type leading pole iron are enclosed within outside inner circle annular permanent-magnet body and interior circular leading pole iron, cylindrical ring-type permanent magnet and cylindrical ring-type leading pole iron wall stack, the magnetic force direction of adjacent two cylindrical ring-type permanent magnets contrary and magnetic force direction and rotating shaft parallel to an axis, inner circle annular permanent-magnet body in the same plane is identical with the thickness of cylindrical ring-type permanent magnet and magnetic force direction is identical, interior circular leading pole iron in the same plane is identical with the thickness of cylindrical ring-type leading pole iron.During use, under the effect of interior circular leading pole iron and cylindrical ring-type leading pole iron, the axial magnetic force of interior permanent magnet and the axial magnetic force of outer permanent magnet are extruded the radial side of the interior circular leading pole iron radial side of guiding and outer ring-like leading pole iron, and the polarity of the radial side of relative interior circular leading pole iron radial side and outer ring-like leading pole iron is identical, the while South Pole, the while arctic, like this, just formed magnetic suspension active force radially, due to the material of rotating shaft and bearing support normally cast iron or the steel of magnetic conduction, therefore, easily form magnetic shielding, except leading and focusing on the radial side of relative interior circular leading pole iron radial side and outer ring-like leading pole iron, magnetic force does not almost have outside divergence loss, make the magnetic force of radial side of interior circular leading pole iron radial side and outer ring-like leading pole iron strong, guaranteed to there is enough magnetic suspension forces.
Here, rotating shaft support end at rotating shaft two ends is provided with movable magnet member and is fixed on the fixed magnets member on bearing support, the external side of inner circle annular permanent-magnet in movable magnet member outside arranges axial circular annular permanent-magnet body, axial circular annular permanent-magnet body is fixed in axial axis bearing, and the magnetic force direction of axial circular annular permanent-magnet body is contrary with the magnetic force direction of the inner circle annular permanent-magnet body in movable magnet member outside.Like this, rotating shaft just can obtain magnetic suspension bearing axially and radially, and the fixed magnets member that meanwhile, guaranteed movable magnet member, is fixed on bearing support can not be shifted.
Compared with the prior art the present invention, has advantages of and can realize radial suspension and suspension effect power is large.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present invention;
Fig. 2 is use phase diagram of the present invention.
Embodiment:
Now in conjunction with the accompanying drawings and embodiments the present invention is described in further detail:
As shown in Figure 1, the present invention includes the movable magnet member 2 that is fixed on rotating shaft support end 1, be fixed on the fixed magnets member 4 on bearing support 3, its specialization is that movable magnet member 2 comprises inner circle annular permanent-magnet body 2a and the interior circular leading pole iron 2b being fixed by socket on rotating shaft support end 1, inner circle annular permanent-magnet body 2a and interior circular leading pole iron 2b wall stack, the magnetic force direction of adjacent two inner circle annular permanent-magnet body 2a contrary and magnetic force direction and rotating shaft 5 parallel to an axiss, fixed magnets member 4 comprises cylindrical ring-type permanent magnet 4a and the cylindrical ring-type leading pole iron 4b being fixed on bearing support 3, cylindrical ring-type permanent magnet 4a and cylindrical ring-type leading pole iron 4b are enclosed within outside inner circle annular permanent-magnet body 2a and interior circular leading pole iron 2b, cylindrical ring-type permanent magnet 4a and cylindrical ring-type leading pole iron 4b wall stack, the magnetic force direction of adjacent two cylindrical ring-type permanent magnet 4a contrary and magnetic force direction and rotating shaft 5 parallel to an axiss, inner circle annular permanent-magnet body 2a in the same plane is identical with the thickness of cylindrical ring-type permanent magnet 2b and magnetic force direction is identical, interior circular leading pole iron 2b in the same plane is identical with the thickness of cylindrical ring-type leading pole iron 2b.
Rotating shaft support end 1 at rotating shaft 5 two ends is provided with movable magnet member 2 and is fixed on the fixed magnets member 4 on bearing support 3, at the inner circle annular permanent-magnet body 2a1 in movable magnet member 2 outsides outer side surface, axial circular annular permanent-magnet body 6 is set, the axial circular annular permanent-magnet body 6 that is socketed in rotating shaft support end 1 is fixed in axial axis bearing 7, and the magnetic force direction of axial circular annular permanent-magnet body 6 is contrary with the magnetic force direction of the inner circle annular permanent-magnet body 2a1 in movable magnet member 2 outsides.
As shown in Figure 2, in the end of rotating shaft 5, be connected with generator 8, the fan blade bearing of rotating shaft 5 fixedly fan blade 9 just formed wind-driven generator.
Claims (1)
1. a magnetic suspension bearing, it is characterized in that comprising the movable magnet member that is fixed on rotating shaft support end, be fixed on the fixed magnets member on bearing support, its specialization is that movable magnet member comprises inner circle annular permanent-magnet body and the interior circular leading pole iron being fixed by socket on rotating shaft support end, inner circle annular permanent-magnet body and interior circular leading pole iron wall stack, the magnetic force direction of adjacent two inner circle annular permanent-magnet bodies contrary and magnetic force direction and rotating shaft parallel to an axis, fixed magnets member comprises cylindrical ring-type permanent magnet and the cylindrical ring-type leading pole iron being fixed on bearing support, cylindrical ring-type permanent magnet and cylindrical ring-type leading pole iron are enclosed within outside inner circle annular permanent-magnet body and interior circular leading pole iron, cylindrical ring-type permanent magnet and cylindrical ring-type leading pole iron wall stack, the magnetic force direction of adjacent two cylindrical ring-type permanent magnets contrary and magnetic force direction and rotating shaft parallel to an axis, inner circle annular permanent-magnet body in the same plane is identical with the thickness of cylindrical ring-type permanent magnet and magnetic force direction is identical, interior circular leading pole iron in the same plane is identical with the thickness of cylindrical ring-type leading pole iron.
2. magnetic suspension bearing according to claim 1, it is characterized in that the rotating shaft support end at rotating shaft two ends is provided with movable magnet member and is fixed on the fixed magnets member on bearing support, the external side of inner circle annular permanent-magnet in movable magnet member outside arranges axial circular annular permanent-magnet body, axial circular annular permanent-magnet body is fixed in axial axis bearing, and the magnetic force direction of axial circular annular permanent-magnet body is contrary with the magnetic force direction of the inner circle annular permanent-magnet body in movable magnet member outside.
3. magnetic suspension bearing according to claim 2, is characterized in that being connected with generator in the end of rotating shaft, the fan blade bearing of rotating shaft fixedly fan blade just formed wind-driven generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438398.3A CN102518665B (en) | 2011-12-24 | 2011-12-24 | Magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438398.3A CN102518665B (en) | 2011-12-24 | 2011-12-24 | Magnetic suspension bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518665A CN102518665A (en) | 2012-06-27 |
| CN102518665B true CN102518665B (en) | 2014-05-07 |
Family
ID=46289695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110438398.3A Expired - Fee Related CN102518665B (en) | 2011-12-24 | 2011-12-24 | Magnetic suspension bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102518665B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5330967A (en) * | 1990-07-17 | 1994-07-19 | Koyo Seiko Co., Ltd. | Superconducting bearing device stabilized by trapped flux |
| JPH10131966A (en) * | 1996-10-30 | 1998-05-22 | Ebara Corp | Magnetic bearing device |
| CN101303046B (en) * | 2007-05-08 | 2010-05-26 | 李国坤 | Repel push magnetic body component, complete permanent magnetism complete suspending bearing as well as combined wind power photovoltaic power generation system |
| CN102042314A (en) * | 2009-10-12 | 2011-05-04 | 卓向东 | High-strength radical magnetic suspension bearing with large radical spacing |
| CN102042308A (en) * | 2009-10-14 | 2011-05-04 | 卓向东 | Single-ring reverse mutual-sheathed axial magnetic suspension bearing |
| CN102237833A (en) * | 2010-04-21 | 2011-11-09 | 卓向东 | Base structure for magnetic suspension and motor |
| CN202418244U (en) * | 2011-12-24 | 2012-09-05 | 李泽 | Magnetic suspension bearing |
-
2011
- 2011-12-24 CN CN201110438398.3A patent/CN102518665B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102518665A (en) | 2012-06-27 |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20211224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |