CN102644662A - Magnetic suspension bearing - Google Patents
Magnetic suspension bearing Download PDFInfo
- Publication number
- CN102644662A CN102644662A CN201210134036XA CN201210134036A CN102644662A CN 102644662 A CN102644662 A CN 102644662A CN 201210134036X A CN201210134036X A CN 201210134036XA CN 201210134036 A CN201210134036 A CN 201210134036A CN 102644662 A CN102644662 A CN 102644662A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- annular
- bearing
- magnetic suspension
- assembly
- 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.)
- Granted
Links
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a magnetic suspension bearing. A permanent magnet annular assembly which is formed by axially stacking three annular permanent magnets magnetized by inside and outside unipolar radiation orientation and has the middle provided with an introverted type radial-opening annular groove is fixed on an inner wall of an outer ring of the bearing, and then a side-direction structure which is complementary in a convex-concave mode and is arranged in a crossed mode is formed by radial and axial working air gaps of the introverted type radial-opening annular groove and a permanent magnet annular assembly, wherein the permanent magnet annular assembly is fixed on the outer side of an inner ring of the bearing, is formed by axially stacking three annular permanent magnets magnetized by inside and outside unipolar radiation orientation and has the middle provided with an introverted type radial-opening annular groove. Magnetic conducting materials are covered on the sides of non-working air gaps of each permanent magnet annular assembly. In each permanent magnet annular assembly, axially adjacent annular permanent magnets maintain opposite magnetic field polarities, and between the two permanent magnet annular assemblies on the inner ring and the outer ring, the annular permanent magnets which are opposite to each other in the radial direction through the air gaps maintain a repelling state of magnetic force.
Description
Technical field:
The present invention relates to magnetic suspension bearing, relate in particular to the magnetic suspension bearing of full permanent magnetism repulsion type, more particularly: be the full permanent magnetism repulsion type of a kind of integrated type self-stabilization magnetic suspension bearing.
Background technique:
The permanent magnetism repulsion type magnetic suspension bearing of existing technology belongs to the single side type magnetic bearing structure more, causes circular runout when causing the rotor shaft of magnetic suspension bearing application apparatus to stand axial force easily, thereby has reduced the safe operation of magnetic suspension rotor support system; Simultaneously; Because the single side type magnetic suspension bearing belongs to the branch body structure; Can give the magnetic suspension bearing product packing, deposit, transport and bring inconvenience; If but can invent the full permanent magnetism repulsion type of a kind of integrated type double-flanged end magnetic suspension bearing, will avoid above-mentioned unfavorable factor, thus to applying of magnetic suspension bearing bring beneficial effect and give many pursuit at a high speed, the high-end energy-conserving and environment-protective upgrading product replacement such as accurate, quiet plays positive impetus.
Summary of the invention:
The object of the invention will provide the magnetic suspension bearing of the full permanent magnetism repulsion type of a kind of integrated type double-flanged end exactly, and concrete technological scheme is following:
1, a kind of magnetic suspension bearing; It is that one is formed in the permanent magnet annular assembly that has internally-oriented radial port annular groove on the intermediate portion and is fixed on the inwall of bearing outer ring by the radially oriented annular permanent magnet that magnetizes of the inside and outside unipolarity back that axially superposes by three; Then, through the axial working gas gap in the footpath of said internally-oriented radial port annular groove be fixed on one of the bearing inner race outside and axially be formed in the permanent magnet annular assembly that has radial ringed lug boss on the intermediate portion after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts and form convex-concave complementation, side direction structure arranged in a crossed manner; The non-working-gap side of said each permanent magnet annular assembly is all covered by permeability magnetic material, in the middle of described each permanent magnet annular assembly, keeps the opposite each other of magnetic field polarity between each axially adjacent annular permanent magnet; Between two permanent magnet annular assemblies on the said inside and outside circle; All are through all remaining on the state that magnetic force repels each other between the radially relative annular permanent magnet of air gap, and the monnolithic case of said each permanent magnet annular assembly all shows to have axial symmetry.
In the middle of the annular of the permanent magnet on the bearing outer ring according to the invention assembly; Be positioned at the annular permanent magnet on the magnetic suspension bearing axial end position; Can adopt inside to have " horn mouth " annular permanent magnet on part awl inclined-plane, and each maximum material removal side that has " horn mouth " annular permanent magnet on part awl inclined-plane is positioned at axial end one side of magnetic suspension bearing; The awl inclined-plane of said " horn mouth " annular permanent magnet can not covered by permeability magnetic material.
In the middle of the annular of the permanent magnet on the bearing outer ring according to the invention assembly; Be positioned at the annular permanent magnet on the magnetic suspension bearing axial end position; Can adopt the outside to have " hollow shape truncated cone shape " annular permanent magnet on part awl inclined-plane, and each maximum material removal side that has " hollow shape truncated cone shape " annular permanent magnet on part awl inclined-plane is positioned at axial end one side of magnetic suspension bearing; The awl inclined-plane of said " hollow shape truncated cone shape " annular permanent magnet can not covered by permeability magnetic material yet.
In the middle of the annular of the permanent magnet on the bearing outer ring according to the invention assembly; Be positioned at the annular permanent magnet on the magnetic suspension bearing axial end position; Adopt inner " horn mouth " annular permanent magnet that has part awl inclined-plane; Simultaneously, in the middle of the annular of the permanent magnet on said bearing inner race assembly, be positioned at the annular permanent magnet on the magnetic suspension bearing axial end position; Adopt outside " hollow shape truncated cone shape " annular permanent magnet that has part awl inclined-plane, and these maximum material removal side that have the annular permanent magnet on part awl inclined-plane should be positioned at axial end one side of magnetic suspension bearing.
Comprehensively above-mentioned; In the middle of arbitrary magnetic suspension bearing that the present invention enumerates; The outside that is formed in the annular permanent magnet that has radial ringed lug boss on the intermediate portion on the said bearing inner race intermediate portion is provided with ferromagnetic body or the compound enhancement layer of graphite fiber that prevents the centrifugal force stripping damage, and the compound enhancement layer of said graphite fiber also can extend to two of the annular of permanent magnet on bearing inner race assembly radially reduction portions; The axial thickness of two permanent magnet annular assemblies on the inside and outside circle of said bearing can equate also can be unequal.
2, a kind of magnetic suspension bearing; It is that one, is formed in the permanent magnet annular assembly that has internally-oriented radial port annular groove on the intermediate portion and is fixed on the inwall of bearing outer ring axially after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts; Then, constitute the side direction structure that convex-concave is intersected through the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside the axial working gas gap in the footpath of internally-oriented radial port annular groove and the quilt that is fixed on the bearing inner race outside; Remain on the state that magnetic force repels each other between the annular permanent magnet of the internally-oriented radial port annular groove bottom on annular permanent magnet on the said bearing inner race and the said bearing outer ring; In the middle of the said permanent magnet annular assembly, the flux polarity between each axially adjacent annular permanent magnet is opposite each other; Annular permanent magnet on the said bearing inner race also be provided with ferromagnetic body or the compound enhancement layer of graphite fiber.
In the middle of arbitrary magnetic suspension bearing of the present invention; Between the permanent magnet annular assembly on the inside and outside circle of said bearing or between permanent magnet annular assembly and the annular permanent magnet; Can realize mutual transposition, the compound enhancement layer of graphite fiber after the transposition can be adjusted to the outside of two major diameter annular permanent magnets in the middle of the permanent magnet annular assembly on the bearing inner race each other; The axial thickness of two permanent magnet annular assemblies on the inside and outside circle of said bearing can equate also can be unequal.
The radially oriented annular permanent magnet that magnetizes of unipolarity according to the invention is meant: in the middle of an annular permanent magnet, the outside of full annular permanent magnet belongs to a magnetic pole together, and the inwall of full annular permanent magnet then belongs to the situation of another magnetic pole.
Comprehensively above-mentioned, the full permanent magnetism repulsion type of integrated type of the present invention magnetic suspension bearing has following beneficial effect with respect to the single side type magnetic suspension bearing of existing technology:
When 1, having avoided the magnetic suspension rotor axostylus axostyle to stand axial force cause circular runout, thereby guaranteed magnetic suspension rotor support system reliability of operation.
2, the full permanent magnetism repulsion type of integrated type magnetic suspension bearing meets Machine Design personnel's thinking habit, and can satisfy and the same model mechanical bearing between exchange use.
3, to have a product attractive in appearance for the full permanent magnetism repulsion type of integrated type magnetic suspension bearing, the characteristics of compact structure.
Embodiment:
With concrete mode of execution magnetic suspension shaft of the present invention is made further detailed description below:
1, a kind of magnetic suspension bearing, it is that one is formed in the permanent magnet annular assembly that has internally-oriented radial port annular groove on the intermediate portion and is fixed on the inwall of bearing outer ring by the radially oriented annular permanent magnet that magnetizes of the inside and outside unipolarity back that axially superposes by three; Then, through the axial working gas gap in the footpath of internally-oriented radial port annular groove be fixed on one of the bearing inner race outside and axially be formed in the permanent magnet annular assembly that has radial ringed lug boss on the intermediate portion after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts and constitute convex-concave complementation, side direction structure arranged in a crossed manner.The non-working-gap side of said each permanent magnet annular assembly is all covered by bearing enclose and the bearing (ball) cover that permeability magnetic material is made; In the middle of described each permanent magnet annular assembly, keep the opposite each other of magnetic field polarity between each axially adjacent annular permanent magnet; Between two permanent magnet annular assemblies of said Internal and external cycle, all are through all remaining on the state that magnetic force repels each other between the radially relative annular permanent magnet of air gap; The monnolithic case of said each permanent magnet annular assembly all shows axial symmetry.
2, a kind of magnetic suspension bearing; It is that one, is formed in the permanent magnet annular assembly that has internally-oriented radial port annular groove on the intermediate portion and is fixed on the inwall of bearing outer ring axially after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts; Then, through the axial working gas gap in the footpath of internally-oriented radial port annular groove be fixed on one of the bearing inner race outside and axially be formed in the permanent magnet annular assembly that has radial ringed lug boss on the intermediate portion after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts and constitute convex-concave complementation, side direction structure arranged in a crossed manner.The non-working-gap side of said each permanent magnet annular assembly is all covered by bearing enclose and the bearing (ball) cover that permeability magnetic material is made; In the middle of described each permanent magnet annular assembly, keep the opposite each other of magnetic field polarity between each axially adjacent annular permanent magnet; Between two permanent magnet annular assemblies of said Internal and external cycle, all are through all remaining on the state that magnetic force repels each other between the radially relative annular permanent magnet of air gap; The monnolithic case of said each permanent magnet annular assembly all shows axial symmetry; In the middle of the annular of the permanent magnet on said bearing outer ring assembly; Be positioned at the annular permanent magnet on the magnetic suspension bearing axial end position; Adopt inner " horn mouth " annular permanent magnet that has a part awl inclined-plane with, and each maximum material removal side that has " horn mouth " annular permanent magnet on part awl inclined-plane is positioned at axial end one side of magnetic suspension bearing; The awl inclined-plane of said " horn mouth " annular permanent magnet is not covered by permeability magnetic material.
3, a kind of magnetic suspension bearing; It is that one, is formed in the permanent magnet annular assembly that has internally-oriented radial port annular groove on the intermediate portion and is fixed on the inwall of bearing outer ring axially after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts; Then, through the axial working gas gap in the footpath of internally-oriented radial port annular groove be fixed on one of the bearing inner race outside and axially be formed in the permanent magnet annular assembly that has radial ringed lug boss on the intermediate portion after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts and constitute convex-concave complementation, side direction structure arranged in a crossed manner.The non-working-gap side of said each permanent magnet annular assembly is all covered by bearing enclose and the bearing (ball) cover that permeability magnetic material is made; In the middle of described each permanent magnet annular assembly, keep the opposite each other of magnetic field polarity between each axially adjacent annular permanent magnet; Between two permanent magnet annular assemblies of said Internal and external cycle, all are through all remaining on the state that magnetic force repels each other between the radially relative annular permanent magnet of air gap; The monnolithic case of said each permanent magnet annular assembly all shows axial symmetry; The outside that is formed in the annular permanent magnet that has radial ringed lug boss on the intermediate portion on the said bearing inner race intermediate portion is provided with ferromagnetic body or the compound enhancement layer of graphite fiber that prevents the centrifugal force stripping damage.
6, a kind of magnetic suspension bearing; It is that one, is formed in the permanent magnet annular assembly that has internally-oriented radial port annular groove on the intermediate portion and is fixed on the inwall of bearing outer ring axially after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts; Then, constitute the side direction structure that convex-concave is intersected through the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside the axial working gas gap in the footpath of internally-oriented radial port annular groove and the quilt that is fixed on the bearing inner race outside; Remain on the state that magnetic force repels each other between the annular permanent magnet of the internally-oriented radial port annular groove bottom on annular permanent magnet on the said bearing inner race and the said bearing outer ring.In the middle of the said permanent magnet annular assembly, the flux polarity between each axially adjacent annular permanent magnet is opposite each other; Annular permanent magnet on the said bearing inner race also be provided with ferromagnetic body or the compound enhancement layer of graphite fiber.
Claims (8)
1. magnetic suspension bearing; It is that one, is formed in the permanent magnet annular assembly that has internally-oriented radial port annular groove on the intermediate portion and is fixed on the inwall of bearing outer ring axially after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts; Then; Through the axial working gas gap in the footpath of internally-oriented radial port annular groove be fixed on one of the bearing inner race outside and axially be formed in the permanent magnet annular assembly that has radial ringed lug boss on the intermediate portion after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts and constitute convex-concave complementation, side direction structure arranged in a crossed manner, it is characterized in that: the non-working-gap side of said each permanent magnet annular assembly is all covered by permeability magnetic material; In the middle of described each permanent magnet annular assembly, keep the opposite each other of magnetic field polarity between each axially adjacent annular permanent magnet; Between two permanent magnet annular assemblies of said Internal and external cycle, all are through all remaining on the state that magnetic force repels each other between the radially relative annular permanent magnet of air gap; The monnolithic case of said each permanent magnet annular assembly all shows axial symmetry.
2. according to the described magnetic suspension bearing of claim 1; It is characterized in that: in the middle of the annular of the permanent magnet on said bearing outer ring assembly; Be positioned at the annular permanent magnet on the magnetic suspension bearing axial end position; Can adopt inside to have " horn mouth " annular permanent magnet on part awl inclined-plane, and each maximum material removal side that has " horn mouth " annular permanent magnet on part awl inclined-plane is positioned at axial end one side of magnetic suspension bearing; The awl inclined-plane of said " horn mouth " annular permanent magnet can not covered by permeability magnetic material yet.
3. according to the described magnetic suspension bearing of claim 1; It is characterized in that: in the middle of the annular of the permanent magnet on said bearing inner race assembly; Be positioned at the annular permanent magnet on the magnetic suspension bearing axial end position; Can adopt the outside to have " hollow shape truncated cone shape " annular permanent magnet on part awl inclined-plane, and each maximum material removal side that has " hollow shape truncated cone shape " annular permanent magnet on part awl inclined-plane is positioned at axial end one side of magnetic suspension bearing; The awl inclined-plane of said " hollow shape truncated cone shape " annular permanent magnet can not covered by permeability magnetic material yet.
4. according to the described magnetic suspension bearing of claim 1; It is characterized in that: in the middle of the annular of the permanent magnet on said bearing outer ring assembly; Be positioned at the annular permanent magnet on the magnetic suspension bearing axial end position, adopt inner " horn mouth " annular permanent magnet that has part awl inclined-plane, simultaneously; In the middle of the annular of the permanent magnet on said bearing inner race assembly; Be positioned at the annular permanent magnet on the magnetic suspension bearing axial end position, adopt outside " hollow shape truncated cone shape " annular permanent magnet that has part awl inclined-plane, and these maximum material removal side that have the annular permanent magnet on part awl inclined-plane should be positioned at axial end one side of magnetic suspension bearing.
5. according to the described arbitrary magnetic suspension bearing of claim 1-5, also be: the outside that is formed in the annular permanent magnet that has radial ringed lug boss on the intermediate portion on the said bearing inner race intermediate portion is provided with ferromagnetic body or the compound enhancement layer of graphite fiber that prevents the centrifugal force stripping damage.
6. magnetic suspension bearing; It is that one, is formed in the permanent magnet annular assembly that has internally-oriented radial port annular groove on the intermediate portion and is fixed on the inwall of bearing outer ring axially after the stack by the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside three quilts; Then, constitute the side direction structure that convex-concave is intersected through the radially oriented annular permanent magnet that magnetizes of unipolarity inside and outside the axial working gas gap in the footpath of internally-oriented radial port annular groove and the quilt that is fixed on the bearing inner race outside; Remain on the state that magnetic force repels each other between the annular permanent magnet of the internally-oriented radial port annular groove bottom on annular permanent magnet on the said bearing inner race and the said bearing outer ring; In the middle of the said permanent magnet annular assembly, the flux polarity between each axially adjacent annular permanent magnet is opposite each other; The outside of the annular permanent magnet on the said bearing inner race also is provided with ferromagnetic body or the compound enhancement layer of graphite fiber.
7. according in the middle of the described arbitrary magnetic suspension bearing of claim 1-6; All mutual transposition can be realized between permanent magnet annular assembly on the inside and outside circle of said bearing or the annular permanent magnet, the outside of two major diameter annular permanent magnets in the middle of the permanent magnet annular assembly on the bearing inner race can be adjusted to for the compound enhancement layer of the graphite fiber after the mutual transposition.
8. according in the middle of the described arbitrary magnetic suspension bearing of claim 1-6, its characteristic also is: the axial thickness between two permanent magnet annular assemblies on the inside and outside circle of said bearing can be unequal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210134036.XA CN102644662B (en) | 2012-05-03 | 2012-05-03 | Magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210134036.XA CN102644662B (en) | 2012-05-03 | 2012-05-03 | Magnetic suspension bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102644662A true CN102644662A (en) | 2012-08-22 |
| CN102644662B CN102644662B (en) | 2014-12-03 |
Family
ID=46657688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210134036.XA Expired - Fee Related CN102644662B (en) | 2012-05-03 | 2012-05-03 | Magnetic suspension bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102644662B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016523A (en) * | 2012-12-13 | 2013-04-03 | 洛阳润环电机轴承有限公司 | Radial and axial magnetic levitation bearing for replacing angular contact |
| CN103016524A (en) * | 2012-12-13 | 2013-04-03 | 洛阳润环电机轴承有限公司 | Radial and axial magnetic levitation bearing for replacing centripetal thrust |
| CN105352466A (en) * | 2015-12-14 | 2016-02-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial displacement detection device and method and magnetic suspension bearing |
| CN103016523B (en) * | 2012-12-13 | 2016-11-30 | 洛阳润环轴承科技股份有限公司 | A kind of replacement angular contact footpath axial magnetic suspension bearing |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3642381A1 (en) * | 1986-12-11 | 1988-06-23 | Tokuzo Hirose | Rotating gripper for a sewing machine |
| CN2764994Y (en) * | 2005-01-20 | 2006-03-15 | 曲洪源 | Permanent-magnet magnetic suspension bearing |
| CN101000070A (en) * | 2006-11-02 | 2007-07-18 | 刘新广 | Permanent magnetism and turbine composite bearing |
| CN101092990A (en) * | 2007-07-13 | 2007-12-26 | 南京航空航天大学 | Permanent magnet biased axial magnetic suspension bearing |
| CN101539166A (en) * | 2009-04-16 | 2009-09-23 | 王铮 | Magnetic suspension bearing |
| CN201730963U (en) * | 2010-08-17 | 2011-02-02 | 刘新广 | Permanent magnet electric suspension bearing |
| CN102042326A (en) * | 2010-11-10 | 2011-05-04 | 中国科学院电工研究所 | Passive magnetic bearing for low-speed flywheel energy storage system |
| DE102010004904A1 (en) * | 2010-01-19 | 2011-09-15 | Schaeffler Technologies Gmbh & Co. Kg | Permanent magnetic bearing for supporting shaft at housing, has auxiliary bearing provided in superconductor made of superconducting material, and permanent magnet whose magnetic field is formed in region of superconductor |
| CN202001498U (en) * | 2011-01-11 | 2011-10-05 | 张平 | Permanent magnetic suspension bearing and mounting structure thereof |
-
2012
- 2012-05-03 CN CN201210134036.XA patent/CN102644662B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3642381A1 (en) * | 1986-12-11 | 1988-06-23 | Tokuzo Hirose | Rotating gripper for a sewing machine |
| CN2764994Y (en) * | 2005-01-20 | 2006-03-15 | 曲洪源 | Permanent-magnet magnetic suspension bearing |
| CN101000070A (en) * | 2006-11-02 | 2007-07-18 | 刘新广 | Permanent magnetism and turbine composite bearing |
| CN101092990A (en) * | 2007-07-13 | 2007-12-26 | 南京航空航天大学 | Permanent magnet biased axial magnetic suspension bearing |
| CN101539166A (en) * | 2009-04-16 | 2009-09-23 | 王铮 | Magnetic suspension bearing |
| DE102010004904A1 (en) * | 2010-01-19 | 2011-09-15 | Schaeffler Technologies Gmbh & Co. Kg | Permanent magnetic bearing for supporting shaft at housing, has auxiliary bearing provided in superconductor made of superconducting material, and permanent magnet whose magnetic field is formed in region of superconductor |
| CN201730963U (en) * | 2010-08-17 | 2011-02-02 | 刘新广 | Permanent magnet electric suspension bearing |
| CN102042326A (en) * | 2010-11-10 | 2011-05-04 | 中国科学院电工研究所 | Passive magnetic bearing for low-speed flywheel energy storage system |
| CN202001498U (en) * | 2011-01-11 | 2011-10-05 | 张平 | Permanent magnetic suspension bearing and mounting structure thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016523A (en) * | 2012-12-13 | 2013-04-03 | 洛阳润环电机轴承有限公司 | Radial and axial magnetic levitation bearing for replacing angular contact |
| CN103016524A (en) * | 2012-12-13 | 2013-04-03 | 洛阳润环电机轴承有限公司 | Radial and axial magnetic levitation bearing for replacing centripetal thrust |
| CN103016523B (en) * | 2012-12-13 | 2016-11-30 | 洛阳润环轴承科技股份有限公司 | A kind of replacement angular contact footpath axial magnetic suspension bearing |
| CN105352466A (en) * | 2015-12-14 | 2016-02-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial displacement detection device and method and magnetic suspension bearing |
| CN105352466B (en) * | 2015-12-14 | 2018-03-20 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of device for detecting axial displacement, method and magnetic suspension bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102644662B (en) | 2014-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1942282A4 (en) | Hybrid magnetic bearing | |
| CN104747596B (en) | There is fulcrum without friction radial permanent magnet suspension bearing | |
| CN102305242B (en) | Radial-axial three-degree-of-freedom alternating current-direct current hybrid magnetic bearing | |
| PL2266188T3 (en) | Permanent magnet rotor with flux concentrating pole pieces | |
| AU2011303910A8 (en) | Rotor for modulated pole machine | |
| EP2306619A3 (en) | Rotor for axial air gap-type permanent magnetic rotating machine | |
| WO2010042349A3 (en) | High-aspect-ratio homopolar magnetic actuator | |
| EP2226815A3 (en) | Permanent-magnet magnetic field generator | |
| RU2007148544A (en) | BRUSHLESS ELECTRIC MACHINE | |
| MX2012007208A (en) | Rotor for modulated pole machine. | |
| CN201818660U (en) | Permanent magnet radial bearing | |
| WO2012156103A3 (en) | Permanent-magnet external-rotor electric machine, rotor for such an electric machine and method for producing same | |
| CN106979225A (en) | A kind of taper axial magnetic bearing | |
| CN103939465B (en) | A kind of Simple Freedom Magnetic Bearing | |
| CN102644662B (en) | Magnetic suspension bearing | |
| CN103671522B (en) | A kind of footpath axial magnetic suspension bearing | |
| CN105864291B (en) | Magnetic suspension bearing, supporting device and motor assembly | |
| CN100370684C (en) | Radial coreless permanent magnet motor | |
| WO2009100443A3 (en) | Axial gap electric dynamo machine with magnetic bearing | |
| CN101482143A (en) | Magnetic suspension bearing | |
| WO2010052439A3 (en) | Rotating electric machine with homopolar double excitation | |
| TW200726039A (en) | A rotation device with magnetic force | |
| CN102678747A (en) | Radial-axial magnetic bearing | |
| CN103185073B (en) | A kind of magnetic suspension bearing and the method for improving magnetic suspension bearing magnetic energy utilization | |
| CN103016523B (en) | A kind of replacement angular contact footpath axial magnetic suspension bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: LUOYANG RUNHUAN BEARING TECHNOLOGY CO., LTD. Free format text: FORMER NAME: LUOYANG RUNHUAN MOTOR BEARING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 471003, No. 22 Binhe Road, hi tech Zone, Henan, Luoyang, 1 Patentee after: LUOYANG RUNHUAN BEARING TECHNOLOGY CO., LTD. Patentee after: Zhang Yubao Address before: 471003 Luoyang run ring motor bearing Co., Ltd., No. 22 Binhe Road, Luoyang hi tech Zone, Henan, China Patentee before: Luoyang Run Huan motor bearings Co., Ltd Patentee before: Zhang Yubao |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20210503 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |