CN104314976A - Two-degree-of-freedom internal rotor permanent magnet biased spherical radial magnetic bearing - Google Patents
Two-degree-of-freedom internal rotor permanent magnet biased spherical radial magnetic bearing Download PDFInfo
- Publication number
- CN104314976A CN104314976A CN201410648252.5A CN201410648252A CN104314976A CN 104314976 A CN104314976 A CN 104314976A CN 201410648252 A CN201410648252 A CN 201410648252A CN 104314976 A CN104314976 A CN 104314976A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- stator
- rotor
- stator core
- guiding loop
- 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
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
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
- F16C32/0461—Details of the magnetic circuit of stationary parts of the magnetic circuit
- F16C32/0465—Details of the magnetic circuit of stationary parts of the magnetic circuit with permanent magnets provided in the magnetic circuit of the electromagnets
-
- 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
-
- 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
- F16C32/044—Active magnetic bearings
- F16C32/0474—Active magnetic bearings for rotary movement
- F16C32/048—Active magnetic bearings for rotary movement with active support of two degrees of freedom, e.g. radial magnetic bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a two-degree-of-freedom internal rotor permanent magnet biased spherical radial magnetic bearing which mainly comprises two parts, namely a stator system and a rotor system, wherein the stator system mainly comprises an upper spherical stator core, a lower spherical stator core, excitation coils, a magnetic shielding ring, an upper magnetic conducting ring, a lower magnetic conducting ring, a permanent magnet, a stator sleeve and a stator locking ring; the rotor system mainly comprises a spherical rotor core, a rotor sleeve and a rotor locking ring; the upper spherical stator core forms four stator magnetic poles, the lower spherical stator core forms four stator magnetic poles, and eight stator magnetic poles at the upper and lower ends of the magnetic bearing are formed, and form magnetic poles in positive and negative directions of X and Y axes respectively; the excitation coils are wound on each stator magnetic pole. The magnetic bearing can be used as a non-contact bearing of a magnetically suspended gyroscope rotor, so that control over the radial translation and radial torsion of the rotor is completely decoupled, the interference of control over radial translation to control over radial torsion is eliminated, and the pointing accuracy of a magnetically suspended gyroscope is improved.
Description
Technical field
The present invention relates to a kind of non-contact magnetically suspension bearing, particularly relate to a kind of two-freedom internal rotor permanent-magnetic and be biased spherical radial direction magnetic bearing.
Background technique
Magnetic suspension bearing is divided into pure electromagnetism magnetic bearing and permanent magnet biased hybrid magnetic bearing, the former utilizes bias current to provide bias magnetic field, its electric current is comparatively large, power consumption is large, the latter utilizes permanent magnet to substitute the bias magnetic field of the bias current generation in pure electromagnetism magnetic bearing, and the bias magnetic field that permanent magnet produces bears main bearing capacity, electromagnetic control fields provides auxiliary adjustment force, can greatly reduce magnetic bearings control electric current, reduce power amplifier loss, thus reduction coil turn, reduce magnetic bearing volume, reduce weight.Be used widely so permanent magnet biased magnetic bearing closes at high speed sports grounds such as magnetic suspension air blower, magnetic suspension motor, magnetic suspension compressor, magnetic levitation energy storage flywheel, magnetic suspension bias momentum wheel, magnetic suspension control torque gyroscopes.
Magnetically suspended gyroscope utilizes magnetic suspension bearing to support the gyro wheel of High Rotation Speed, eliminate the interference that mechanical friction moment is brought, gyrorotor is made to be operated in higher rotary regimes, thus provide the larger moment of momentum for gyrorotor, make it have good gyroscopic inertia, thus improve gyrostatic pointing accuracy.When there being radial torque to act on gyro wheel, gyroscope running shaft will deflect, and namely gyro drift occur.Therefore, the impact of magnetic bearing suspending power on gyro drift must be considered.
Show by analysis, the prerequisite improving magnetically suspended gyroscope rotor pointing accuracy is, the axial translation of gyro wheel controls and radial translation controls all to control not interference to radial direction twisting, namely the translation in X, Y and Z tri-directions must twist full decoupled with radial X and Y-direction, when this just requires that magnetic bearing produces radial and axial electromagnetic force, deflecting torque can not be produced to gyrorotor.
In prior art, granted patent ZL200510011271.8 proposes a kind of permanent magnet biased internal rotor radial magnetic bearing, and its magnetic pole strength is cylndrical surface.During magnetic bearing work, the electromagnetic attraction suffered by rotor is all the time perpendicular to magnetic pole surfaces.When the gyro wheel principal axis of inertia and magnetic bearing geometrical axis deflect, the electromagnetic attraction size that magnetic bearing 8 magnetic pole strengths produce is unequal, and do not point to gyro wheel barycenter, namely the disturbance torque of radial twisting can be produced to gyro wheel, order about gyro wheel rotating shaft depart from initial position and produce gyro drift, reduce gyro pointing accuracy.
Summary of the invention
The two-freedom internal rotor permanent-magnetic that the object of this invention is to provide a kind of precision high is biased spherical radial direction magnetic bearing.
The object of the invention is to be achieved through the following technical solutions:
Two-freedom internal rotor permanent-magnetic of the present invention is biased spherical radial direction magnetic bearing, primarily of stator system and rotor-support-foundation system two-part composition, stator system mainly comprises: upper sphere stator core, lower peripheral surface stator core, field coil, magnetism resistent ring, upper magnetic guiding loop, lower magnetic guiding loop, permanent magnet, stator sleeve and stator lock ring, rotor-support-foundation system mainly comprises: spheric rotor iron core, rotor sleeve and rotor lock ring, upper sphere stator core forms 4 magnetic pole of the stator, lower peripheral surface stator core forms 4 magnetic pole of the stator, form magnetic bearing 8, upper and lower two ends magnetic pole of the stator altogether, form X respectively, the magnetic pole of the positive negative direction of Y-axis, each magnetic pole of the stator is wound with field coil, magnetism resistent ring is between upper sphere stator core and lower peripheral surface stator core, upper magnetic guiding loop is positioned at sphere stator core radial outside, lower magnetic guiding loop is positioned at lower peripheral surface stator core radial outside, permanent magnet is between upper magnetic guiding loop and lower magnetic guiding loop, upper magnetic guiding loop, lower magnetic guiding loop and permanent magnet are positioned at stator sleeve radially inner side, and be fixedly mounted on stator sleeve by stator lock ring, spheric rotor iron core is positioned at rotor sleeve radial outside, and be fixedly mounted on rotor sleeve by rotor lock ring, spheric rotor outer spherical surface unshakable in one's determination and upper sphere stator core inner ball surface and lower peripheral surface stator core inner ball surface leave certain gap, form air gap.
As seen from the above technical solution provided by the invention, the two-freedom internal rotor permanent-magnetic that the embodiment of the present invention provides is biased spherical radial direction magnetic bearing, spherical radial direction magnetic bearing is biased with the radial two-freedom internal rotor permanent-magnetic twisting uneoupled control owing to adopting radial translation, can be used as the contactless supporting of magnetically suspended gyroscope rotor, make the radial translation of rotor with radial twist control full decoupled, eliminate the interference that radial translation controls to control radial direction twisting, improve the pointing accuracy of magnetically suspended gyroscope.
Accompanying drawing explanation
Fig. 1 is biased the axial cross section structural representation of spherical radial direction magnetic bearing for two-freedom internal rotor permanent-magnetic that the embodiment of the present invention provides;
Fig. 2 is biased the axial end structural representation of spherical radial direction magnetic bearing for two-freedom internal rotor permanent-magnetic that the embodiment of the present invention provides;
Fig. 3 a is upper sphere stator core and lower peripheral surface stator core sectional view in the embodiment of the present invention;
Fig. 3 b is upper sphere stator core and lower peripheral surface stator core three-dimensional structure schematic diagram in the embodiment of the present invention;
Fig. 4 a is spheric rotor sectional view unshakable in one's determination in the embodiment of the present invention;
Fig. 4 b is spheric rotor three-dimensional structure schematic diagram unshakable in one's determination in the embodiment of the present invention.
Embodiment
To be described in further detail the embodiment of the present invention below.
Two-freedom internal rotor permanent-magnetic of the present invention is biased spherical radial direction magnetic bearing, its preferably embodiment be:
Primarily of stator system and rotor-support-foundation system two-part composition, stator system mainly comprises: upper sphere stator core, lower peripheral surface stator core, field coil, magnetism resistent ring, upper magnetic guiding loop, lower magnetic guiding loop, permanent magnet, stator sleeve and stator lock ring, rotor-support-foundation system mainly comprises: spheric rotor iron core, rotor sleeve and rotor lock ring, upper sphere stator core forms 4 magnetic poles, lower peripheral surface stator core forms 4 magnetic poles, upper sphere stator core and lower peripheral surface stator core composition magnetic bearing 8, upper and lower two ends magnetic pole, form X respectively, the magnetic pole of the positive negative direction of Y-axis, each magnetic pole of the stator is wound with field coil, magnetism resistent ring is between upper sphere stator core and lower peripheral surface stator core, upper magnetic guiding loop is positioned at sphere stator core radial outside, lower magnetic guiding loop is positioned at lower peripheral surface stator core radial outside, permanent magnet is between upper magnetic guiding loop and lower magnetic guiding loop, upper magnetic guiding loop, lower magnetic guiding loop and permanent magnet are positioned at stator sleeve radially inner side, and be fixedly mounted on stator sleeve by stator lock ring, spheric rotor iron core is positioned at rotor sleeve radial outside, and be fixedly mounted on rotor sleeve by rotor lock ring, spheric rotor outer spherical surface unshakable in one's determination and upper sphere stator core inner ball surface and lower peripheral surface stator core inner ball surface leave certain gap, form air gap.
Described upper sphere stator core and the magnetic pole of lower peripheral surface stator core all adopt pole shoe form to reduce eddy current loss under high rotating speed and equivalent drag square.Described upper magnetic guiding loop and lower magnetic guiding loop are 1J85 permeability magnetic material.Described permanent magnet is shirt cobalt alloy or Nd Fe B alloys material.The axial annulus of described permanent magnet, magnetizes vertically.The spherical radius of described upper sphere stator core is equal with the spherical radius of lower peripheral surface stator core, and both centre ofs sphere overlap completely.
The present invention overcomes the deficiencies in the prior art, adopts the internal rotor permanent-magnetic of radial translation and radial twisting uneoupled control to be biased spherical radial direction magnetic bearing, avoids the interference that radial translation controls to control radial direction twisting.
Principle of the present invention is:
Permanent magnet provides permanent magnet bias magnetic field to magnetic bearing, bear the radial force suffered by magnetic bearing, the bias magnetic field forwards/reverse that the controlling magnetic field that field coil produces and permanent magnet produce superposes, and keeps magnetic bearing rotor air gap even, realizes the contactless suspension bearing of rotor.As shown in Figure 1, permanent magnetic circuit of the present invention is: magnetic flux is from permanent magnet N pole, get back to permanent magnet S pole by upper magnetic guiding loop, upper sphere stator core, air gap, spheric rotor iron core, air gap, lower peripheral surface stator core, lower magnetic guiding loop, form the main magnetic circuit of magnetic suspension bearing.As shown in Figure 2, for the magnetic flux that upper end Y-axis forward field coil electric current produces, its path is: Y-axis positive magnetic pole, the Y-axis forward air gap of upper sphere stator core be unshakable in one's determination to spheric rotor, other three direction magnetic poles of then being formed to other three direction air gaps, upper sphere stator core, get back to the Y-axis positive magnetic pole that upper sphere stator core formed, and forms closed-loop path.
When magnetic bearing rotor is in equilibrium position, the air gap at 8 magnetic pole strength places is completely equal, the electromagnetic attraction equal and opposite in direction at each magnetic pole strength place, suffered by magnetic bearing rotor make a concerted effort and resultant moment of force be zero.When magnetic bearing rotor inertia axle and its stator geometrical axis exist a small angle, at each stator pole face place, the electromagnetic attraction suffered by rotor all the time along the radial direction of magnetic bearing rotor sphere, and all through the centre of sphere of spheric rotor iron core.When gyrorotor barycenter overlaps completely with the centre of sphere of spheric rotor iron core, the electromagnetic attraction that 8 magnetic pole strengths go out is 0 to the moment that gyrorotor barycenter produces, teetotum rotating shaft can not be ordered about deflect, namely radial translation controls to affect radial twisting control, avoid the interference that radial translation twists radial direction, eliminate the gyro drift that radial direction magnetic bearing causes.
The present invention's advantage is compared with prior art:
The present invention is on the basis of existing inner rotor radial magnetic bearing, change existing magnetic bearing magnetic pole strength into sphere, make electromagnetic force that magnetic bearing rotor is subject at each magnetic pole place all the time through the centre of sphere of spheric rotor iron core, overcome because of each magnetic pole place electromagnetic force unequal time, and the radial direction twisting disturbance torque produced, eliminate the gyro drift that radial direction magnetic bearing causes, improve the pointing accuracy of magnetically suspended gyroscope.
Specific embodiment:
As shown in Figure 1, 2, a kind of two-freedom internal rotor permanent-magnetic is biased spherical radial direction magnetic bearing, primarily of stator system and rotor-support-foundation system two-part composition, stator system mainly comprises: upper sphere stator core 1, lower peripheral surface stator core 2, field coil 3, magnetism resistent ring 4, upper magnetic guiding loop 5, lower magnetic guiding loop 6, permanent magnet 7, stator sleeve 8 and stator lock ring 9, rotor-support-foundation system mainly comprises: spheric rotor iron core 10, rotor sleeve 11 and rotor lock ring 12, upper sphere stator core 1 forms 4 magnetic poles, lower peripheral surface stator core 2 forms 4 magnetic poles, upper sphere stator core 1 and lower peripheral surface stator core 2 form magnetic bearing 8, upper and lower two ends magnetic pole, form X respectively, the magnetic pole of the positive negative direction of Y-axis, each magnetic pole of the stator is wound with field coil 3, magnetism resistent ring 4 is between upper sphere stator core 1 and lower peripheral surface stator core 2, upper magnetic guiding loop 5 is positioned at sphere stator core 1 radial outside, lower magnetic guiding loop 6 is positioned at lower peripheral surface stator core 2 radial outside, permanent magnet 7 is between upper magnetic guiding loop 5 and lower magnetic guiding loop 6, upper magnetic guiding loop 5, lower magnetic guiding loop 6 and permanent magnet 7 are positioned at stator sleeve 8 radially inner side, and be fixedly mounted on stator sleeve 8 by stator lock ring 9, spheric rotor iron core 10 is positioned at rotor sleeve 11 radial outside, and be fixedly mounted on rotor sleeve 11 by rotor lock ring 12, spheric rotor 10 outer spherical surfaces unshakable in one's determination and upper sphere stator core 1 inner ball surface and lower peripheral surface stator core 2 inner ball surface leave certain gap, form air gap 13.
Fig. 3 a is upper sphere stator core 1 and lower peripheral surface stator core 2 sectional view in the present invention, Fig. 3 b is upper sphere stator core 1 and lower peripheral surface stator core 2 three-dimensional structure schematic diagram in the present invention, its material is that the stalloy that magnetic property is good forms as the magnetic material punching presses such as Electrical Steel Sheet 1J22,1J50,1J79,1J85, electrical pure iron fold, four magnetic pole strengths are on same sphere, and each magnetic pole all adopts pole shoe form to reduce eddy current loss under high rotating speed and equivalent drag square.
Fig. 4 a is spheric rotor 10 sectional views unshakable in one's determination in the present invention, Fig. 4 b is spheric rotor 10 three-dimensional structure schematic diagram unshakable in one's determination in the present invention, its material is that the stalloy that magnetic property is good forms as the magnetic material punching presses such as Electrical Steel Sheet 1J22,1J50,1J79,1J85, electrical pure iron fold, when gyro wheel is in equilibrium position, the outer spherical surface centre of sphere of spheric rotor iron core 10 overlaps with the centre of sphere of the upper centre of sphere of sphere stator core 1 inner ball surface and the inner ball surface of lower peripheral surface stator core 2.
The material of the magnetism resistent ring 4 that foregoing invention scheme is used is the non-magnetic alloys such as duralumin 2A12, the superduralumin 7A09 that heat-conducting property is good.Upper magnetic guiding loop 5 and lower magnetic guiding loop 6 are the good 1J85 permeability magnetic material of magnetic property.The material of permanent magnet 7 is shirt cobalt alloy or Nd Fe B alloys that magnetic property is good, and permanent magnet 7 is axial annulus, magnetizes vertically.Field coil 3 paint-dipping drying after the good copper wire winding of conduction forms.Stator sleeve 8 and rotor sleeve 11 material are the weak magnetic stainless steel of the good 1Cr18Ni9Ti of thermal conductivity ability.Stator lock ring 9 and rotor lock ring 12 material are the non-magnetic alloys such as the good duralumin 2A12 of heat-conducting property, superduralumin 7A09.
The content be not described in detail in specification of the present invention belongs to the known prior art of professional and technical personnel in the field.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (6)
1. two-freedom internal rotor permanent-magnetic is biased a spherical radial direction magnetic bearing, comprises stator system and rotor-support-foundation system two-part, it is characterized in that:
Described stator system mainly comprises: upper sphere stator core (1), lower peripheral surface stator core (2), field coil (3), magnetism resistent ring (4), upper magnetic guiding loop (5), lower magnetic guiding loop (6), permanent magnet (7), stator sleeve (8) and stator lock ring (9);
Described rotor-support-foundation system mainly comprises: spheric rotor iron core (10), rotor sleeve (11) and rotor lock ring (12);
Described upper sphere stator core (1) composition 4 magnetic pole of the stator, described lower peripheral surface stator core (2) composition 4 magnetic pole of the stator, form magnetic bearing 8, upper and lower two ends magnetic pole of the stator altogether, form the magnetic pole of X, the positive negative direction of Y-axis respectively, each magnetic pole of the stator is wound with described field coil (3);
Described magnetism resistent ring (4) is positioned between sphere stator core (1) and lower peripheral surface stator core (2), described upper magnetic guiding loop (5) is positioned at described upper sphere stator core (1) radial outside, described lower magnetic guiding loop (6) is positioned at described lower peripheral surface stator core (2) radial outside, and described permanent magnet (7) is positioned between described upper magnetic guiding loop (5) and lower magnetic guiding loop (6);
Described upper magnetic guiding loop (5), lower magnetic guiding loop (6) and permanent magnet (7) are positioned at described stator sleeve (8) radially inner side, and are fixedly mounted on described stator sleeve (8) by described stator lock ring (9);
Described spheric rotor iron core (10) is positioned at described rotor sleeve (11) radial outside, and be fixedly mounted on described rotor sleeve (11) by described rotor lock ring (12), described spheric rotor iron core (10) outer spherical surface and the gap left between upper sphere stator core (1) inner ball surface and lower peripheral surface stator core (2) inner ball surface, form air gap (13).
2. two-freedom internal rotor permanent-magnetic according to claim 1 is biased spherical radial direction magnetic bearing, it is characterized in that: described upper sphere stator core (1) and the magnetic pole of lower peripheral surface stator core (2) all adopt pole shoe structure.
3. two-freedom internal rotor permanent-magnetic according to claim 1 is biased spherical radial direction magnetic bearing, it is characterized in that: described upper magnetic guiding loop (5) and lower magnetic guiding loop (6) are 1J85 permeability magnetic material.
4. two-freedom internal rotor permanent-magnetic according to claim 1 is biased spherical radial direction magnetic bearing, it is characterized in that: described permanent magnet (7) is shirt cobalt alloy or Nd Fe B alloys material.
5. two-freedom internal rotor permanent-magnetic according to claim 1 is biased spherical radial direction magnetic bearing, it is characterized in that: described permanent magnet (7) is axial annulus, magnetizes vertically.
6. two-freedom internal rotor permanent-magnetic according to claim 1 is biased spherical radial direction magnetic bearing, it is characterized in that: the spherical radius of described upper sphere stator core (1) is equal with the spherical radius of lower peripheral surface stator core (2), and both centre ofs sphere overlap completely.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410648252.5A CN104314976B (en) | 2014-11-14 | 2014-11-14 | Two-degree-of-freedom internal rotor permanent magnet biased spherical radial magnetic bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410648252.5A CN104314976B (en) | 2014-11-14 | 2014-11-14 | Two-degree-of-freedom internal rotor permanent magnet biased spherical radial magnetic bearing |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104314976A true CN104314976A (en) | 2015-01-28 |
CN104314976B CN104314976B (en) | 2017-01-11 |
Family
ID=52370258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410648252.5A Active CN104314976B (en) | 2014-11-14 | 2014-11-14 | Two-degree-of-freedom internal rotor permanent magnet biased spherical radial magnetic bearing |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104314976B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105156475A (en) * | 2015-09-12 | 2015-12-16 | 北京科技大学 | Rotating modulation radial spherical permanent-magnet biased magnetic bearing |
CN107607099A (en) * | 2017-08-31 | 2018-01-19 | 北京石油化工学院 | A kind of magnetic suspension control sensitivity gyro of the common position of prosecution |
CN111828475A (en) * | 2020-06-22 | 2020-10-27 | 北京控制工程研究所 | Radial magnetic bearing structure and multi-degree-of-freedom magnetic suspension mechanism comprising same |
CN111946748A (en) * | 2020-08-20 | 2020-11-17 | 董文昌 | Magnetic processing bearing in wind motor and processing equipment thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1760560A (en) * | 2005-09-09 | 2006-04-19 | 河北农业大学 | Radial thrust bi-directional magnetic suspension bearing |
CN101994761A (en) * | 2010-08-17 | 2011-03-30 | 北京航空航天大学 | Double-permanent magnet outer-rotor permanent magnet biased radial magnetic bearing |
WO2011149962A1 (en) * | 2010-05-24 | 2011-12-01 | The Trustees Of Columbia University In The City Of New York | Mutant ngal proteins and uses thereof |
CN202391966U (en) * | 2011-12-30 | 2012-08-22 | 张冰青 | Magnetic suspension bearings and magnetic suspension motor |
CN204267529U (en) * | 2014-11-14 | 2015-04-15 | 北京石油化工学院 | A kind of two-freedom internal rotor permanent-magnetic is biased spherical radial direction magnetic bearing |
-
2014
- 2014-11-14 CN CN201410648252.5A patent/CN104314976B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1760560A (en) * | 2005-09-09 | 2006-04-19 | 河北农业大学 | Radial thrust bi-directional magnetic suspension bearing |
WO2011149962A1 (en) * | 2010-05-24 | 2011-12-01 | The Trustees Of Columbia University In The City Of New York | Mutant ngal proteins and uses thereof |
CN101994761A (en) * | 2010-08-17 | 2011-03-30 | 北京航空航天大学 | Double-permanent magnet outer-rotor permanent magnet biased radial magnetic bearing |
CN202391966U (en) * | 2011-12-30 | 2012-08-22 | 张冰青 | Magnetic suspension bearings and magnetic suspension motor |
CN204267529U (en) * | 2014-11-14 | 2015-04-15 | 北京石油化工学院 | A kind of two-freedom internal rotor permanent-magnetic is biased spherical radial direction magnetic bearing |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105156475A (en) * | 2015-09-12 | 2015-12-16 | 北京科技大学 | Rotating modulation radial spherical permanent-magnet biased magnetic bearing |
CN105156475B (en) * | 2015-09-12 | 2018-09-28 | 北京科技大学 | A kind of rotation modulation radial spherical permanent magnet biased magnetic bearing |
CN107607099A (en) * | 2017-08-31 | 2018-01-19 | 北京石油化工学院 | A kind of magnetic suspension control sensitivity gyro of the common position of prosecution |
CN107607099B (en) * | 2017-08-31 | 2020-05-22 | 北京石油化工学院 | Magnetic suspension control sensitive gyroscope with detection and control co-location |
CN111828475A (en) * | 2020-06-22 | 2020-10-27 | 北京控制工程研究所 | Radial magnetic bearing structure and multi-degree-of-freedom magnetic suspension mechanism comprising same |
CN111946748A (en) * | 2020-08-20 | 2020-11-17 | 董文昌 | Magnetic processing bearing in wind motor and processing equipment thereof |
CN111946748B (en) * | 2020-08-20 | 2021-11-16 | 天津市城西广源电力工程有限公司 | Magnetic processing bearing in wind motor and processing equipment thereof |
Also Published As
Publication number | Publication date |
---|---|
CN104314976B (en) | 2017-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN204267529U (en) | A kind of two-freedom internal rotor permanent-magnetic is biased spherical radial direction magnetic bearing | |
CN204267527U (en) | A kind of two-freedom external rotor permanent magnet is biased spherical radial direction magnetic bearing | |
CN104389903B (en) | A kind of dual permanent-magnet external rotor permanent magnet biases ball face radial direction magnetic bearing | |
CN104201935B (en) | A kind of four-degree-of-freedom magnetically levitated flywheel | |
CN104214216B (en) | A kind of four-degree-of-freedom internal rotor magnetic bearing | |
CN101922510B (en) | Inner rotor permanent magnet biased radial magnetic bearing with double permanent magnets | |
CN104176277B (en) | A kind of four-degree-of-freedom double-frame magnetic suspension control moment gyro | |
CN104118579B (en) | A kind of four-degree-of-freedom magnetic suspension control moment gyro of single framework | |
CN204419855U (en) | The pure electromagnetism magnetic bearing of a kind of spherical radial direction of external rotor | |
CN106763187B (en) | A kind of implicit Lorentz force deflection magnetic bearing of the poly- magnetic effect of U-shaped | |
CN104533949B (en) | Internal rotor spherical radial pure electromagnetic bearing | |
CN101994761B (en) | Double-permanent magnet outer-rotor permanent magnet biased radial magnetic bearing | |
CN106090010B (en) | A kind of dual permanent-magnet deflects Lorentz force magnetic bearing | |
CN104533950B (en) | Radial magnetic bearing with outer rotor conical spherical magnetic poles | |
CN102392852B (en) | Axial magnetic bearing | |
CN104141685B (en) | The main passive internal rotor magnetic bearing of one kind | |
CN104314976A (en) | Two-degree-of-freedom internal rotor permanent magnet biased spherical radial magnetic bearing | |
CN104314977A (en) | Two-degree-of-freedom external rotor permanent magnet biased spherical radial magnetic bearing | |
CN204267528U (en) | A kind of dual permanent-magnet internal rotor permanent-magnetic biases ball face radial direction magnetic bearing | |
CN104373461B (en) | A kind of dual permanent-magnet internal rotor permanent-magnetic biases ball face radial direction magnetic bearing | |
CN106767744A (en) | A kind of implicit Lorentz force deflection magnetic bearing | |
CN204267530U (en) | A kind of dual permanent-magnet external rotor permanent magnet biases ball face radial direction magnetic bearing | |
CN104121288A (en) | Active and passive outer rotor magnetic bearing | |
CN104565066B (en) | A kind of spherical radial direction of outer rotor pure electromagnetism magnetic bearing | |
CN104121290B (en) | A kind of internal rotor magnetic 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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |