CN102808846A - Practical magnetic positioning type magnetic suspension bearing - Google Patents
Practical magnetic positioning type magnetic suspension bearing Download PDFInfo
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- CN102808846A CN102808846A CN2011101495169A CN201110149516A CN102808846A CN 102808846 A CN102808846 A CN 102808846A CN 2011101495169 A CN2011101495169 A CN 2011101495169A CN 201110149516 A CN201110149516 A CN 201110149516A CN 102808846 A CN102808846 A CN 102808846A
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 201
- 239000000725 suspension Substances 0.000 title claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
A practical magnetic positioning type magnetic suspension bearing comprises an inner ring magnet, an outer magnet, magnet conductive iron parts and covering faces. The inner ring magnet which is axially magnetic is sleeved on a rotary shaft, the outer ring magnet which is axially magnetic is mounted in a machine and positioned on the periphery of the inner ring magnet, the magnet conductive iron parts are mounted on axial magnetic pole faces of the outer ring magnet, the covering faces cover magnetic pole faces of the inner ring magnet, a radial clearance is reserved between the inner ring magnet and the outer ring magnet, the axial width of the outer ring magnet is larger than that of the inner ring magnet, a symmetric axial clearance is reserved between the inner ring magnet and the covering faces, the inner ring magnet and the outer ring magnet are identical in polarity on same sides in a axial direction and mutually repel, the covering faces and the inner ring magnet are also identical in polarity on same sides in an axial direction and mutually repel due to magnetic conductivity, and all-around magnetic suspension is realized by positioning by inward squeezing the inner ring magnet and the rotary shaft under radial and axial all-around magnetic repulsion, so that the practical magnetic positioning type magnetic suspension bearing has magnetic bearing force and bearing rigidity capable of resisting radial and axial displacement and is free of friction and loss, electricity-saving, energy-saving, long in service life, simple in structure, convenient to manufacture, low in cost, compact in appearance and high in practicability.
Description
Technical field: magnetics, magnetic suspension, bearing, particularly magnetic suspension bearing
Technology back of the body border:
The report of conventional magnetic levitation bearing or patent, what have only is experiment product, what have is too complicated, the difficult making, cost is too high, and it is not comprehensive to have plenty of performance, and instability is so commercialization is to shoulder heavy responsibilities; As, patent 200910025506.7 adopts permanent magnetism and electromagnetic combination, and is too complicated, the regulation and control difficulty, and cost is too high; And as 0115303.2 have only radially magnetic bearing power, axially be unsettled; And for example 200620035333.9 and 200820129979.2 adopt the non-common footpath magnetropism that can't cash purchase arrives whole magnet ring, need processing especially, and diametrical magnetization is difficult, the cost height; Other has one type of patent, as, 200510098871.2 and 2180081.01010 adopt the arc or the tapered magnet of abnormity, make difficulty, and magnetic is carried not high, and cost is higher; As 200910024727.2 also complicated, cost is higher; Thereby, actually coming into operation and apply, the practicability of this technology and product is the task of top priority.
Summary of the invention:
Goal of the invention:
Invent a kind of magnetic force positioning type magnetic suspension bearing of practicality, give machine shaft with radial and axial omnibearing magnetic force location,, compare with mechanical bearing with magnetic bearing power and the supporting stiffness of realizing magnetic suspension, have to resist displacement with specific magnetic structure; With untouchable magnetic force, there are not friction and loss, electricity saving and energy saving does not have wearing and tearing, the long lifetime; Noiseless operates steadily, and rotating speed can improve, and performance is comprehensive, and simple structure; Easy to make, profile is small and exquisite, and cost is low, and is practical, is easy to commercialization.
Technological scheme:
The structure that the magnetic force positioning type magnetic suspension bearing of being invented is adopted by hoop coaxially be enclosed within the interior ring magnet with axial magnetic of the hollow annular in the rotating shaft with the bigger hollow annular that is contained in corresponding position in the machine regularly and be enclosed within outer shroud magnet and the magnetic conductive part that encircle the periphery of magnet in described and form with axial magnetic; Have between the inner and outer ring magnet and radially open apart from also all being on the vertical plane of a rotating shaft coaxially; Internal magnetic ring body and outer shroud magnet all have the magnetic pole strength of two axial opposing different magnetic each other, and described inner and outer ring magnet is identical in the magnetic polarity of the corresponding magnetic pole strength of axial the same side, then; At opposite side also is like this; So totally two strands of magnetic that repel each other in the same sex radially that interior ring magnet and outer shroud magnet have both sides are each other scolded and are made a concerted effort, promptly; Radially; In the ring magnet be subjected to the extruding of equilibrium of symmetry of the inside magnetic repulsion radially of outer shroud magnet, then, the rotating shaft of ring magnet had obtained having the magnetic bearing power of radial location effect in hoop was with; And be endowed the supporting stiffness that can resist radial displacement, be able to axial magnetic; The axial width of outer shroud magnet is greater than the axial width of interior ring magnet, and magnetic conductive part is the magnetic conductor of two hollow annulars, can adopt the magnetic conduction ironware of ring-type; And respectively symmetrical being mounted on two axial magnetic pole strengths of outer shroud magnet, these two magnetic conduction ironwares all extend symmetrically and are covered in two axial magnetic pole strength places of internal magnetic ring and become the coverage rate of magnetic conduction, because its good permeance property; The magnetic of coverage rate is identical with the magnetic of this magnetic pole strength of the outer magnetic ring body that is mounted; So two coverage rates are same magnetic with the corresponding interior magnetic pole strength that encircles magnet respectively, all are to repel each other with magnetic each other; Again because of; The inboard of the coverage rate of two symmetries all and the identical distance of axially opening is all arranged between axial corresponding two magnetic pole strengths of interior ring magnet, then, interior ring magnet has been subjected to two strands of magnetic repulsions of coverage rate of both sides in the axially extruding of the face-off of symmetry; And obtained axial magnetic bearing power; And given the supporting stiffness that can resist axial displacement with axial location effect, be able to axial magnetic suspension, thereby; The rotating shaft of ring magnet had been subjected to radial and axial omnibearing supporting force and has been given the omnibearing supporting stiffness that can resist radial and axial displacement in hoop was with, and had realized radial and axial omnibearing magnetic suspension.
Interior and outer magnetic ring body can be the hollow monoblock type magnet ring with annular of axial magnetic; Also can be the identical little permanent magnet of a plurality of profiles with axial magnetic; By axial homonymy together magnetically; Comparatively dense and arranging equably is mounted on the circular magnetic conduction ironware magnetic, becomes the discrete magnet ring that can homemadely neatly have axial magnetic cheaply.
Beneficial effect;
The present invention adopts unique untouchable magnetic force that magnetic structure provided, and gives rotating shaft with radial and axial magnetic force location and realize omnibearing magnetic suspension, and has the omnibearing supporting stiffness of the displacement resisted, and compares with mechanical bearing, not friction and loss; Electricity saving and energy saving, never wornout, the life-span is long, noiseless; Operate steadily, rotating speed can improve, and, simple structure; Make and debugging convenient, cost is low, be easy to apply, for its practicability and commercialization opened up by way of.
Description of drawings:
Numbering: 0, center line 1, internal magnetic ring 2; Non-magnetic guiding loop 3, rotating shaft 4, outer magnetic ring 5; Casing 6 is radially opened apart from 7 the width 8 of outer magnetic ring; The width 9 and 10 of internal magnetic ring: axial two magnetic pole strengths 11 and 12 of internal magnetic ring body: two axial magnetic poles 13 of outer magnetic ring, axially open apart from 15 and 16: magnetic conduction ironware 19 and 20: coverage rate 22, little permanent magnet
Accompanying drawing 1: adopt the structure of the magnetic force positioning type magnetic suspension bearing of integrated type magnet ring always to scheme
Accompanying drawing 2: the structural drawing of separated magnet ring
The practical implementation method:
Embodiment 1: adopt the structure of the magnetic suspension bearing of all-in-one-piece magnet ring to see: accompanying drawing 1
Hollow circular internal magnetic ring 1 binds round center line 0 place that is enclosed within rotating shaft 3 coaxially by the non-magnetic guiding loop 2 in encircling, and at center line 0 place of the periphery of internal magnetic ring 1, hollow circular bigger outer magnetic ring 4 is co-axially mounted in the casing 5 accordingly; The internal magnetic ring 1 that rotates with rotating shaft 3 is in the interior central authorities of outer magnetic ring 4, and radially opening apart from 6 of symmetry arranged between internal magnetic ring 1 and the outer magnetic ring 4, and internal magnetic ring 1 has the magnetic pole strength 9 and 10 of two axial opposing different magnetic each other; The axial width 7 of outer magnetic ring 4 is greater than the axial width 8 of internal magnetic ring 1, on the magnetic pole strength 11 and 12 of two axial opposing different magnetic each other of outer magnetic ring 4, is pasted with the magnetic conduction ironware 15 and 16 of the identical annular of hollow profile respectively symmetrically, and they are (15 years old; 16) all extend and have the coverage rate (19,20) at the place, orientation of the magnetic pole strength (9,10) that is covered in internal magnetic ring 1 to internal magnetic ring 1 place; The coverage rate (19 of the axial magnetic pole strength (9,10) of internal magnetic ring 1 and the magnetic conduction ironware (15,16) of both sides, the left and right sides; Symmetrical identical axial opening apart from 13 all arranged 20), and interior outer magnetic ring (1,4) is identical in the magnetic of axial the same side; That is, the magnetic of internal magnetic ring 1 other magnetic pole strength 9 on the left side of center line 0 is that the magnetic with the other magnetic pole strength 11 in the left side of outer magnetic ring 4 is identical, as; It all is the N utmost point; Then, the magnetic of the magnetic pole strength 10 on the right of internal magnetic ring 1 is that opposite magnetic is the S utmost point, then; The magnetic polarity of the magnetic pole strength 12 on the right of outer magnetic ring 4 also is the S utmost point; Then, axial two magnetic pole strengths (9,10) of internal magnetic ring 1 all respectively with axial corresponding two magnetic pole strengths (11 of outer magnetic ring 4; 12) all be to repel each other with magnetic; Then, internal magnetic ring 1 be subjected to outer magnetic ring 4 about the equilibrium of the symmetry of totally two strands of magnetic repulsions inside extruding and obtained magnetic bearing power entad radially and be endowed the supporting stiffness that can resist displacement radially, the rotating shaft 3 that makes hoop be with internal magnetic ring 1 has realized magnetic suspension radially; In addition, since the good magnetic conductance of magnetic conduction ironware (15,16), the magnetic pole strength (11 of its magnetic and outer magnetic ring 4; 12) magnetic is identical, then, and magnetic conduction ironware (15; 16) and the magnetic of the axial corresponding magnetic pole strength (9,10) of the magnetic of coverage rate (19,20) and internal magnetic ring 1 also be identical; Then, the magnetic conduction ironware (15,16) and the coverage rate (19 of internal magnetic ring 1 and both sides; 20) all be to repel each other with magnetic, that is, the magnetic pole strength 9 in the left side of internal magnetic ring 1 has been subjected to magnetic conduction ironware 15 and the repulsion of coverage rate 19 of the same magnetic on left side; The magnetic pole strength 10 on the right side of internal magnetic ring 1 has been subjected to magnetic conduction ironware 16 and the repulsion of coverage rate 20 of the same magnetic on right side, and these two repulsive force equate and direction is opposite, promptly; Internal magnetic ring 1 has been subjected to the extruding of face-off of equilibrium of inside symmetry of the repulsive force of both sides, and has obtained the magnetic bearing power of axial positioning action to be arranged and given the supporting stiffness that can resist axial displacement, and makes rotating shaft 3 realize axial magnetic suspension; Thereby rotating shaft 3 has obtained radial and axial omnibearing supporting force and supporting stiffness, thereby, realized radial and axial omnibearing magnetic suspension; Along with open apart from (6,7) reduce the enhancing of the magnetic of magnet ring (1,4); The increasing of the increase of the magnet of magnet ring (1,4) and magnetic pole strength (9,10 and 11,12); Described supporting force also increases enhancing with the supporting stiffness, and then, the omnibearing load capacity of rotating shaft 3 also just strengthens.
Embodiment 2: the structure of separated magnet ring is seen: Fig. 2
But the identical little permanent magnet 22 of a plurality of profiles with cash purchase of axial magnetic, by the same magnetic of axial homonymy, comparatively dense is mounted on magnetic conduction ironware (15 with arrangement equably; 16) on, become the discrete magnet ring, its magnetic is similar in appearance to the monoblock type magnet ring; As replace, can be flexibly and make magnet ring at low cost by oneself.
Claims (4)
1. the magnetic force positioning type magnetic suspension bearing of a practicality; It is characterized in that; It by hoop coaxially be enclosed within the interior ring magnet with axial magnetic of the hollow ring in the rotating shaft with the bigger hollow ring that is contained in corresponding position in the machine regularly and be enclosed within the outer shroud magnet with axial magnetic and two magnetic conductive parts of encircling the periphery of magnet in described and form; Have one radially to open between the described inside and outside ring magnet apart from also all being on the vertical plane of a rotating shaft coaxially; Described inside and outside ring magnet is identical in the magnetic polarity of the corresponding magnetic pole strength of axial the same side, thereby described internal magnetic ring body and outer shroud magnet radially are being to repel each other with magnetic; The axial width of described outer shroud magnet is greater than the axial width of interior ring magnet; Described two magnetic conductive parts all are hollow and are mounted on two axial magnetic pole strengths of described outer shroud magnet coaxially respectively symmetrically and all have and extend symmetrically and be covered in two axial magnetic pole strength places of internal magnetic ring and become the coverage rate of two magnetic conductions; In addition, described two clad cans all with described in the identical distance of axially opening is all arranged between the corresponding magnetic pole strength of ring magnet; Because magnetic conductance, the magnetic of described coverage rate is identical with the magnetic of this magnetic pole strength of the outer magnetic ring body that is mounted, then, described in the ring magnet all be axially to repel each other respectively with each described coverage rate of both sides respectively with magnetic; Thereby described interior ring magnet has received radial and axial magnetic repulsion.
2. the magnetic force positioning type magnetic suspension bearing of a kind of practicality according to claim 1 is characterized in that described magnetic ring body is the hollow integrated type magnet ring of the ring of axial magnetic.
3. the magnetic force positioning type magnetic suspension bearing of a kind of practicality according to claim 1; It is characterized in that; By the identical little permanent magnet of a plurality of profiles, be mounted on the magnetic conductive part with magnetically arranging with axial homonymy, and become the discrete magnet ring of hollow annular with axial magnetic.
4. the magnetic force positioning type magnetic suspension bearing of a kind of practicality according to claim 1 is characterized by, and described magnetic conductive part and coverage rate are meant the circular hollow magnetic conduction ironware of magnetic conduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110149516.9A CN102808846B (en) | 2011-06-03 | 2011-06-03 | Practical magnetic force positioning type magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110149516.9A CN102808846B (en) | 2011-06-03 | 2011-06-03 | Practical magnetic force positioning type magnetic suspension bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102808846A true CN102808846A (en) | 2012-12-05 |
| CN102808846B CN102808846B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110149516.9A Expired - Fee Related CN102808846B (en) | 2011-06-03 | 2011-06-03 | Practical magnetic force positioning type magnetic suspension bearing |
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| CN (1) | CN102808846B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422620A (en) * | 2015-11-02 | 2016-03-23 | 中山市金马科技娱乐设备股份有限公司 | Ferris wheel spindle supporting structure |
| CN107100793A (en) * | 2017-07-13 | 2017-08-29 | 许占欣 | A kind of low wind speed magnetic suspension wind wheel device |
| CN110462234A (en) * | 2017-04-01 | 2019-11-15 | 开利公司 | With the raised magnetic transverse bearing of magnetic flux |
| CN116750431A (en) * | 2023-06-26 | 2023-09-15 | 安徽理工大学 | Magnetic suspension carrier roller device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001074050A (en) * | 1999-07-06 | 2001-03-23 | Nsk Ltd | Radial magnetic bearing |
| CN201187530Y (en) * | 2008-05-04 | 2009-01-28 | 刘新广 | Non-balance magnetic bearing |
| CN201187529Y (en) * | 2008-05-04 | 2009-01-28 | 刘新广 | Magnetic slide bearing |
| CN201433862Y (en) * | 2008-11-25 | 2010-03-31 | 上海呈博电磁技术有限公司 | Magnetic structure of absorption coupling magnetic support system of cantilever type wind driven generator |
| CN101881301A (en) * | 2009-05-05 | 2010-11-10 | 卓向东 | Radial suspension structure of magnetic suspension bearing |
-
2011
- 2011-06-03 CN CN201110149516.9A patent/CN102808846B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001074050A (en) * | 1999-07-06 | 2001-03-23 | Nsk Ltd | Radial magnetic bearing |
| CN201187530Y (en) * | 2008-05-04 | 2009-01-28 | 刘新广 | Non-balance magnetic bearing |
| CN201187529Y (en) * | 2008-05-04 | 2009-01-28 | 刘新广 | Magnetic slide bearing |
| CN201433862Y (en) * | 2008-11-25 | 2010-03-31 | 上海呈博电磁技术有限公司 | Magnetic structure of absorption coupling magnetic support system of cantilever type wind driven generator |
| CN101881301A (en) * | 2009-05-05 | 2010-11-10 | 卓向东 | Radial suspension structure of magnetic suspension bearing |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422620A (en) * | 2015-11-02 | 2016-03-23 | 中山市金马科技娱乐设备股份有限公司 | Ferris wheel spindle supporting structure |
| CN105422620B (en) * | 2015-11-02 | 2018-06-08 | 中山市金马科技娱乐设备股份有限公司 | A kind of ferris wheel main shaft supporting structure |
| CN110462234A (en) * | 2017-04-01 | 2019-11-15 | 开利公司 | With the raised magnetic transverse bearing of magnetic flux |
| US11028877B2 (en) | 2017-04-01 | 2021-06-08 | Carrier Corporation | Magnetic radial bearing with flux boost |
| CN107100793A (en) * | 2017-07-13 | 2017-08-29 | 许占欣 | A kind of low wind speed magnetic suspension wind wheel device |
| CN116750431A (en) * | 2023-06-26 | 2023-09-15 | 安徽理工大学 | Magnetic suspension carrier roller device |
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| Publication number | Publication date |
|---|---|
| CN102808846B (en) | 2016-02-17 |
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Effective date of registration: 20160616 Address after: 200043, room 1, building 335, No. 12006-1, National Road, Shanghai, Yangpu District Patentee after: Shanghai Huijun Science & Technology Development Co., Ltd. Address before: 200042 Shanghai Wanhangdu Road 829 Lane 3, 19A Patentee before: Tang Jianyi |
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