CN106931035B - A kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus - Google Patents
A kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus Download PDFInfo
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- CN106931035B CN106931035B CN201710259998.0A CN201710259998A CN106931035B CN 106931035 B CN106931035 B CN 106931035B CN 201710259998 A CN201710259998 A CN 201710259998A CN 106931035 B CN106931035 B CN 106931035B
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- magnet bias
- magnetic suspension
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 266
- 239000000725 suspension Substances 0.000 title claims abstract description 112
- 239000000523 sample Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
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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 discloses a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus, it can be mainly made of as the contactless supporting arrangement of multiple degrees of freedom of the systems such as dynamics simulation platform, universal momenttum wheel components such as upper permanent magnet bias low-watt consumption magnetic bearing, lower permanent magnet bias low-watt consumption magnetic bearing, position sensor, auxiliary bearing, bearing block, magnetic suspension rotor and axle beds.Axle bed, upper permanent magnet bias low-watt consumption magnetic bearing, lower permanent magnet bias low-watt consumption magnetic bearing, position sensor and auxiliary bearing are followed successively by by permanent magnet bias low-watt consumption magnetic bearing arrangement center outward, it is bearing block on the outside of auxiliary bearing, magnetic suspension rotor is in the outside of whole device.The inner surface of magnetic suspension rotor is concentric spherical with upper and lower magnetic axis bearing outer surface, and the center that magnetic suspension rotor is kept by control system is constant, and ensures rotary freedom there are three magnetic suspension rotor tools.The present invention improves bias magnetic field by permanent magnet.The present invention has many advantages, such as that low in energy consumption, reliability is high and service life is long.
Description
Technical field
The present invention relates to the technical fields of magnetic suspension bearing, and in particular to a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension shaft
Bearing apparatus, can be as the more of the systems such as spatial dynamics emulation platform, Three-degree of Freedom Rotational Platform, joint of robot, universal momenttum wheel
The contactless supporting arrangement of degree of freedom.
Background technology
The devices such as spatial dynamics emulation platform, joint of robot, three-axle table, universal momenttum wheel are required with mostly certainly
By degree locomitivity, to reduce structural complexity, the volume and weight of these devices, and its service life and reliability are improved
(being particularly operated in the device under space environment), so active demand Multi-degree of Freedom Support System, especially spherical bearing machine
Structure.In addition, the progress and its application of globular motor technology also receive the limitation of spherical bearing technology.Pass through Mechanical Contact mode
Realize that major defect existing for spherical bearing mechanism has machine components processing and manufacturing difficulty, mechanical erection is complicated, and it is dry to there is movement
It relates to, volume is big, needs to lubricate, and due to the short life there are friction and wear, reliability is poor.And there are gas for spherical air-bearing bearing
The shortcomings of gap that floating axle is held is big, rigidity is uncontrollable, occupied space big (air source being needed, such as pump house or gas cylinder) and noise is big, and
It is mainly used in Three Degree Of Freedom spacecraft simulation device.And spherical magnetic levitation system is in contrast, realizes contactless bearing, nothing
It need to lubricate and seal, bearing clearance is small, and rigidity is actively controllable, without friction, noise is small.In addition, it is further without the additional dress such as air source
It puts, and can be applied to space environment, have good adaptability to various adverse circumstances.The Large Spacecraft attitude maneuver having at present
It is applied to spherical magnetic suspension bearing apparatus, U.S. Patent number in device：The wide-angle magnetic suspension dress of No.4785212,1988 structures
It puts, there are the shortcomings of complicated, manufacture and difficulty of processing are big, and is only applied to the gesture stability of Large Spacecraft；The U.S.
The patent No.：No.6351049, the ball of 2002 structures connect shape magnetic bearing, will cause to control difficulty greatly and stable there are coupled problem
Difference, stator core use solid ferromagnetic material, and loss will be caused big, and without protection bearing and non-contact displacement sensor etc.
Device；Due to there are drawbacks described above, thus existing spherical magnetic suspension bearing apparatus there are it is complicated, power consumption is big, it is of high cost and
The shortcomings of controlling difficulty big.
Invention content
The technical problem to be solved by the present invention is to：Overcome the deficiencies of the prior art and provide a kind of low in energy consumption, light weight, fortune
Dynamic range is big, and reliability is high, service life is long and the spherical magnetic suspension bearing apparatus there is no chemical contamination.
The present invention solve above-mentioned technical problem the technical solution adopted is that：A kind of permanent magnet bias low-power consumption spherical shape magnetic suspension shaft
Bearing apparatus is made of static and rotation two parts, the stationary part of stationary part including upper permanent magnet bias low-watt consumption magnetic bearing, under
Stationary part, auxiliary bearing, position sensor, bearing block, axle bed and the locking nut of permanent magnet bias low-watt consumption magnetic bearing；Rotation
Part includes magnetic suspension rotor.Axle bed is outer in the middle part of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus, by the middle part of axle bed
Be respectively outward the stationary part of upper permanent magnet bias low-watt consumption magnetic bearing, lower permanent magnet bias low-watt consumption magnetic bearing stationary part,
Position sensor, auxiliary bearing and locking nut are bearing block on the outside of auxiliary bearing.Upper permanent magnet bias low-watt consumption magnetic bearing
The stationary part and position sensor of stationary part and lower permanent magnet bias low-watt consumption magnetic bearing are connected respectively with axle bed, asessory shaft
It holds and is fixed on axle bed by locking nut, bearing block is connect with auxiliary bearing, and magnetic suspension rotor is on the outside of whole device, axis
Portable protective gaps are formed between bearing and magnetic suspension rotor.The inner surface of magnetic suspension rotor is determined with upper permanent magnet bias low-watt consumption magnetic bearing
Sub- magnetic pole outer surface, lower permanent magnet bias low-watt consumption magnetic bearing stator magnetic pole outer surface and position sensor detecting head surface are homocentric sphere
Face.The electric signal of position sensor output is connected with the input terminal of additional controller, the output terminal of the controller respectively with it is upper forever
Magnetic bias low-watt consumption magnetic bearing is connected with the magnetizing coil of lower permanent magnet bias low-watt consumption magnetic bearing, forms the closed loop of electricity,
The center that magnetic suspension rotor is kept by controller is constant, and ensures rotary freedom there are three magnetic suspension rotor tools.
Wherein, the upper permanent magnet bias low-watt consumption magnetic bearing and lower permanent magnet bias low-watt consumption magnetic bearing are that on-mechanical connects
Tactile magnetic suspension bearing, while radial support and axial supporting role are provided for magnetic suspension rotor, eliminate common axial magnetic
Bearing.
Wherein, the magnetic suspension bearing that the on-mechanical contacts is permanent magnet bias, the active magnetic suspension shaft of Electromagnetic Control
It holds.
Wherein, the stator pole faces of upper permanent magnet bias low-watt consumption magnetic bearing and lower permanent magnet bias low-watt consumption magnetic bearing stator
Magnetic pole surfaces are spherical shape.
Wherein, the outer surface of two bearing blocks and the inner surface of magnetic suspension rotor are concentric spherical, two axis
The outer surface of bearing forms the portable protective gaps of 0.1-0.15mm between the inner surface of magnetic suspension rotor respectively.
Wherein, two position sensors are respectively provided with four probes, and the test surface of probe is spherical surface.
The principle of the present invention is：It is kept by upper permanent magnet bias low-watt consumption magnetic bearing and lower permanent magnet bias low-watt consumption magnetic bearing
The upper permanent magnet bias low-watt consumption magnetic bearing stationary part and lower permanent magnet bias of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus
Spherical Clearance between low-watt consumption magnetic bearing stationary part and magnetic suspension rotor is uniform and keeps non-contact stable suspersion, simultaneously
Ensureing inner surface, there are three rotary freedoms for spherical magnetic suspension rotor tool.When magnetic suspension rotor is by a certain disturbance factor
After interference, permanent magnet bias low-watt consumption magnetic bearing stationary part will be made and lower permanent magnet bias low-watt consumption magnetic bearing is static and magnetic suspension
Spherical Clearance between rotor changes, and the variation that at this moment position sensor will detect Spherical Clearance in time sends out detection
Signal, additional controller is by increaseing or decreasing on upper permanent magnet bias low-watt consumption magnetic bearing and lower permanent magnet bias low-watt consumption magnetic bearing
Magnetizing coil in electric current, increase or reduce permanent magnet bias low-watt consumption magnetic bearing and lower permanent magnet bias low-watt consumption magnetic bearing
Magnetic force, so as to keep upper permanent magnet bias low-watt consumption magnetic bearing stationary part and lower permanent magnet bias low-watt consumption magnetic bearing stationary part with
The uniform non-contact stable suspersion of Spherical Clearance between magnetic suspension rotor eliminates the influence of interference, and spherical magnetic suspension is kept to turn
The center of son is constant, maintains normal table operation of the spherical magnetic suspension bearing apparatus on three rotary freedoms.Work as magnetic
When suspension rotor generates the displacement in negative direction of the x-axis, the upper magnetic bearing magnetic pole and lower magnetic bearing magnetic pole on the left of x-axis are in spherical surface
The magnetic field that the magnetic field generated in air gap is generated with permanent magnet in spherical surface air gap is subtracted each other, the upper magnetic bearing magnetic pole on the right side of x-axis
It is superimposed with the magnetic field that is generated in lower magnetic bearing magnetic pole and magnetic field that permanent magnet generates in spherical surface air gap, so as to generate x-axis just
The resultant force in direction is constant until magnetic suspension rotor to be withdrawn into center again.When magnetic suspension rotor is generated in z-axis negative direction
Displacement when, what the magnetic field and the permanent-magnetic clamp that are generated positioned at 4 pairs of magnetic poles of the upper magnetic bearing of the z-axis first half generated in spherical surface air gap
Magnetic field is superimposed, is generated in spherical surface air gap with permanent-magnetic clamp positioned at the magnetic field that 4 pairs of magnetic poles of the lower magnetic bearing of z-axis lower half generate
Magnetic field subtract each other, it is constant until magnetic suspension rotor to be withdrawn into center again so as to generate the resultant force of z-axis positive direction.
The advantages of the present invention over the prior art are that：The present invention is as a result of upper permanent magnet bias low-watt consumption magnetic bearing
With lower permanent magnet bias low-watt consumption magnetic bearing technology, upper permanent magnet bias low-watt consumption magnetic bearing and lower permanent magnet bias low-watt consumption magnetic bearing lead to
Cross permanent magnet improve bias magnetic field, and electromagnetic circuit not by permanent magnet inside, reduce the magnetic resistance of electric shock magnetic magnetic circuit, reduce
Excitation current, so as to significantly reduce the power consumption of spherical magnetic suspension bearing apparatus, upper permanent magnet bias low-watt consumption magnetic bearing and under forever
Magnetic bias low-watt consumption magnetic bearing provides radial support and axial supporting role for magnetic suspension rotor simultaneously, eliminates common axial direction
Magnetic bearing improves the service life and precision of spherical bearing device, does not need to lubricate, reduce system power dissipation, passes through protection
Bearing improves the reliability of system, and controls simple, easy to adjust.
Description of the drawings
Fig. 1 is a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus part subdivision graph of the present invention；
Fig. 2 is a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus sectional view of the present invention；
Fig. 3 is a kind of spherical magnetic suspension bearing of the present invention, and the magnetic line of force when magnetic suspension rotor is located at center divides
Butut；
Fig. 4 is the corresponding magnetic suspension rotor force diagrams of Fig. 3, and arrow represents magnetic suspension rotor Impact direction and size；
A kind of spherical magnetic suspension bearings of the Fig. 5 for the present invention, the magnetic force when magnetic suspension rotor generation negative direction of the x-axis displacement
Line distribution map；
Fig. 6 is the corresponding magnetic suspension rotor force diagrams of Fig. 5, and arrow represents magnetic suspension rotor Impact direction and size；
A kind of spherical magnetic suspension bearings of the Fig. 7 for the present invention, the magnetic force when magnetic suspension rotor generation z-axis negative direction displacement
Line distribution map；
Fig. 8 is the corresponding magnetic suspension rotor force diagrams of Fig. 7, and arrow represents magnetic suspension rotor Impact direction and size；
Fig. 9 is the permanent magnet bias low-watt consumption magnetic bearing sectional view of the present invention；
Figure 10 is the permanent magnet bias low-watt consumption magnetic bearing sections figure of the present invention；
Figure 11 is the position sensor structural front view of the present invention；
Figure 12 is the vertical view of Figure 11；
Figure 13 is the magnetic suspension rotor part subdivision graph of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment further illustrates the present invention.
As depicted in figs. 1 and 2, a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension shaft of the technology of the present invention solution installs
Put, be made of static and rotation two parts, the stationary part of stationary part including upper permanent magnet bias low-watt consumption magnetic bearing 5, under forever
Stationary part, auxiliary bearing 3, position sensor 4, bearing block 2, axle bed 7 and the locking nut 8 of magnetic bias low-watt consumption magnetic bearing 6；
Rotating part includes magnetic suspension rotor 1.Axle bed 7 is in the middle part of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus, by axis
7 middle part of seat is respectively stationary part, the lower permanent magnet bias low-watt consumption magnetic bearing 6 of upper permanent magnet bias low-watt consumption magnetic bearing 5 outward
Stationary part, position sensor 4, auxiliary bearing 3 and locking nut 8 are bearing block 2 in 3 outside of auxiliary bearing.Upper permanent magnet bias
The stationary part and position sensor 4 of the stationary part of low-watt consumption magnetic bearing 5 and lower permanent magnet bias low-watt consumption magnetic bearing 6 respectively with
Axle bed 7 is connected, and auxiliary bearing 3 is fixed on by locking nut 8 on axle bed 7, and bearing block 2 is connect with auxiliary bearing 3, magnetic suspension
Rotor 1 is on the outside of whole device, and portable protective gaps are formed between bearing block 2 and magnetic suspension rotor 1.The interior table of magnetic suspension rotor 1
Face and upper 5 magnetic pole of the stator outer surface of permanent magnet bias low-watt consumption magnetic bearing, lower 6 magnetic pole of the stator appearance of permanent magnet bias low-watt consumption magnetic bearing
Face and 4 detecting head surface of position sensor are concentric spherical.The input terminal of the electric signal that position sensor 4 exports and additional controller
Be connected, the output terminal of the controller respectively with upper permanent magnet bias low-watt consumption magnetic bearing 5 and lower permanent magnet bias low-watt consumption magnetic bearing 6
Magnetizing coil is connected, and forms the closed loop of electricity, and the center that magnetic suspension rotor 1 is kept by controller is constant, and protects
Demonstrate,proving the tool of magnetic suspension rotor 1, there are three rotary freedoms.
The outer surface of two bearing blocks 2 and the inner surface of magnetic suspension rotor 1 are concentric spherical, two bearing blocks 2 it is outer
Surface is formed between the inner surface of magnetic suspension rotor 1 respectively between the protection of 0.1-0.15mm (the present embodiment is 0.12mm or so)
Gap.
The upper permanent magnet bias low-watt consumption magnetic bearing 5 and lower permanent magnet bias low-watt consumption magnetic bearing 6 of the present invention is that on-mechanical connects
Contact bearing is the magnetic suspension bearing of permanent magnet bias low-power consumption.
Fig. 3 is a kind of spherical magnetic suspension bearing of the present invention, and the magnetic line of force when magnetic suspension rotor is located at center divides
Butut；Fig. 4 is the corresponding magnetic suspension rotor force diagrams of Fig. 3, and arrow represents magnetic suspension rotor Impact direction and size.Work as magnetcisuspension
When floating rotor is located at center, nothing in 4 pairs of magnetic pole of the stator of upper magnetic bearing and 4 pairs of magnetic pole of the stator magnetizing coils of lower magnetic bearing
Electric current is controlled, in spherical surface air gap of the permanent-magnetic clamp between upper magnetic bearing magnetic pole of the stator and lower magnetic bearing magnetic pole of the stator and magnetic suspension rotor
Equal quiescent biasing magnetic field is generated, magnetic direction all points to the centre of sphere, therefore, what upper magnetic bearing and lower magnetic bearing magnetic pole of the stator generated
Resultant force is also directed to the centre of sphere, and the suffered resultant force of magnetic suspension rotor is zero.
A kind of spherical magnetic suspension bearings of the Fig. 5 for the present invention, the magnetic force when magnetic suspension rotor generation negative direction of the x-axis displacement
Line distribution map；Fig. 6 is the corresponding magnetic suspension rotor force diagrams of Fig. 5, and arrow represents magnetic suspension rotor Impact direction and size.When
When magnetic suspension rotor generates the displacement in negative direction of the x-axis, the upper magnetic bearing magnetic pole and lower magnetic bearing magnetic pole on the left of x-axis are in ball
The magnetic field that the electromagnetism magnetic field generated in the air gap of face is generated with permanent-magnetic clamp in spherical surface air gap is subtracted each other, the upper magnetic axis on the right side of x-axis
It holds the electromagnetism magnetic field generated in magnetic pole and lower magnetic bearing magnetic pole and the magnetic field that permanent-magnetic clamp generates in spherical surface air gap is superimposed, so as to
The resultant force for generating positive direction of the x-axis is constant until magnetic suspension rotor to be withdrawn into center again.
A kind of spherical magnetic suspension bearings of the Fig. 7 for the present invention, the magnetic force when magnetic suspension rotor generation z-axis negative direction displacement
Line distribution map；Fig. 8 is the corresponding magnetic suspension rotor force diagrams of Fig. 7, and arrow represents magnetic suspension rotor Impact direction and size.When
When magnetic suspension rotor generates the displacement in z-axis negative direction, positioned at the electromagnetism of 4 pairs of magnetic poles generation of the upper magnetic bearing of the z-axis first half
Magnetic field and the magnetic field that permanent-magnetic clamp generates in spherical surface air gap are superimposed, and 4 pairs of magnetic poles positioned at the lower magnetic bearing of z-axis lower half generate
The magnetic field that is generated in spherical surface air gap with permanent-magnetic clamp of electromagnetism magnetic field subtract each other, so as to generate the resultant force of z-axis positive direction until by magnetic
It is constant that suspension rotor is withdrawn into center again.
Fig. 9 and Figure 10 is respectively the permanent magnet bias low-watt consumption magnetic bearing sectional view and sectional view of the present invention, in this kind of magnetic axis
In holding, mainly by stator core 51, magnetizing coil 52, magnetic guiding loop 53, magnetic bearing mounting base 54, permanent-magnetic clamp 55, magnetism-isolating loop 56, sky
Air gap 57 and magnetic suspension rotor 1 form.Wherein stator core 51, magnetizing coil 52, magnetic guiding loop 53 and magnetic bearing mounting base 54, forever
Magnet ring 55, magnetism-isolating loop 56 are stationary part, and magnetic suspension rotor 1 is rotating part.
Figure 11 and Figure 12 is respectively the front view and vertical view of the position sensor of the present invention, and four position sensors are popped one's head in
42nd, it 43,44 and 45 is distributed on the excircle of sensor holder, each other at an angle of 90,42,43,44,45 and of position sensor probe
Spherical surface detection gap 46, the detection direction of position sensor probe 42,43,44,45 and detection are respectively formed between detection body 41
Body 41 is vertical, position sensor pop one's head in 42,43,44,45 axis by detecting the sphere center position of body 41, spherical surface detection gap 46
Generally 0.5mm~1.25mm.Two position sensors probe 42 and 43 partners, respectively positioned at the both direction of Y-axis into
180 ° of angles, while the displacement signal that detection body 41 moves is detected, another two radial displacement transducer 44 and 45 compositions of probe are another
It is right, respectively positioned at the both direction of X-axis into 180 ° of angles, while detect the displacement signal that detection body 41 moves.
Figure 13 is the magnetic suspension rotor part subdivision graph of the present invention, mainly by upper magnetic suspension rotor 11,12 and of lock-screw
Lower magnetic suspension rotor 13 forms, and the inner surface of upper magnetic suspension rotor 11 and lower magnetic suspension rotor 13 is a part for spherical surface, by leading
The good soft magnetic materials of magnetic property is process, and is linked together by lock-screw 12, to reduce the weight of magnetic suspension rotor,
The performance of system is not influenced simultaneously, using the frame mode of reinforcing rib.
Claims (6)
1. a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus is made of static and rotation two parts, it is characterised in that：
The stationary part of stationary part including upper permanent magnet bias low-watt consumption magnetic bearing (5), lower permanent magnet bias low-watt consumption magnetic bearing (6) it is quiet
Stop point, auxiliary bearing (3), position sensor (4), bearing block (2), axle bed (7) and locking nut (8)；Rotating part includes
Magnetic suspension rotor (1), axle bed (7) is in the middle part of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus, from bearing block (2)
Sphere center position is stationary part, the position sensor of upper permanent magnet bias low-watt consumption magnetic bearing (5) successively along axle bed (7) upwards
(4), auxiliary bearing (3) and locking nut downward along axle bed (7) are that lower permanent magnetism is inclined successively from the sphere center position of bearing block (2)
The stationary part, position sensor, auxiliary bearing (3) of power consumption magnetic bearing (6) and locking nut (8) are set low, in auxiliary bearing (3)
Outside is bearing block (2), the stationary part of upper permanent magnet bias low-watt consumption magnetic bearing (5) and lower permanent magnet bias low-watt consumption magnetic bearing
(6) stationary part and position sensor (4) is connected respectively with axle bed (7), and auxiliary bearing (3) is solid by locking nut (8)
It is scheduled on axle bed (7), bearing block (2) is connect with auxiliary bearing (3), and magnetic suspension rotor (1) is on the outside of whole device, bearing block
(2) portable protective gaps, the inner surface of magnetic suspension rotor (1) and upper permanent magnet bias low-watt consumption magnetic are formed between magnetic suspension rotor (1)
Bearing (5) magnetic pole of the stator outer surface, lower permanent magnet bias low-watt consumption magnetic bearing (6) magnetic pole of the stator outer surface and position sensor (4)
Detecting head surface is concentric spherical, and the electric signal of position sensor (4) output is connected with the input terminal of additional controller, the controller
The output terminal magnetizing coil with upper permanent magnet bias low-watt consumption magnetic bearing (5) and lower permanent magnet bias low-watt consumption magnetic bearing (6) respectively
It is connected, forms the closed loop of electricity, the center that magnetic suspension rotor (1) is kept by controller is constant, and ensures magnetcisuspension
There are three rotary freedoms for floating rotor (1) tool.
2. a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus according to claim 1, it is characterised in that：It is described
Upper permanent magnet bias low-watt consumption magnetic bearing (5) and lower permanent magnet bias low-watt consumption magnetic bearing (6) be on-mechanical contact magnetic suspension
Bearing, while radial support and axial supporting role are provided for magnetic suspension rotor (1), eliminate common axial magnetic bearing.
3. a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus according to claim 2, it is characterised in that：It is described
On-mechanical contact magnetic suspension bearing for permanent magnet bias, Electromagnetic Control active magnetic suspension bearing.
4. a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus according to Claims 2 or 3, it is characterised in that：
The stator pole faces of upper permanent magnet bias low-watt consumption magnetic bearing (5) and lower permanent magnet bias low-watt consumption magnetic bearing (6) magnetic pole of the stator table
Face is spherical shape.
5. a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus according to claim 1, it is characterised in that：It is described
The outer surface of two bearing blocks (2) and the inner surface of magnetic suspension rotor (1) be concentric spherical, two bearing blocks (2) it is outer
Surface forms the portable protective gaps of 0.1-0.15mm between the inner surface of magnetic suspension rotor (1) respectively.
6. a kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus according to claim 1, it is characterised in that：It is described
Two position sensors (4) be respectively provided with four probes, the test surface of probe is spherical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259998.0A CN106931035B (en) | 2017-04-20 | 2017-04-20 | A kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259998.0A CN106931035B (en) | 2017-04-20 | 2017-04-20 | A kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus |
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| CN106931035A CN106931035A (en) | 2017-07-07 |
| CN106931035B true CN106931035B (en) | 2018-06-29 |
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| CN201710259998.0A Expired - Fee Related CN106931035B (en) | 2017-04-20 | 2017-04-20 | A kind of permanent magnet bias low-power consumption spherical shape magnetic suspension bearing apparatus |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327488B (en) * | 2017-08-29 | 2023-03-28 | 南京磁谷科技有限公司 | Mounting base for magnetic pole in inclined magnetic bearing |
| CN108591258B (en) * | 2018-05-10 | 2019-11-26 | 中国科学院国家天文台南京天文光学技术研究所 | Horizon open frame for Large-Scale Precision Instrument and Equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0338933A1 (en) * | 1988-04-20 | 1989-10-25 | Societe De Mecanique Magnetique | Active magnetically suspended vibration device controlled in three axes |
| US4961352A (en) * | 1988-02-24 | 1990-10-09 | Satcon Technology Corporation | Magnetic bearing and suspension system |
| CN1752470A (en) * | 2005-11-10 | 2006-03-29 | 北京航空航天大学 | Small volume low watt consumption permanent magnet offset external rotor radial magnetic bearing |
| CN101922511A (en) * | 2010-08-25 | 2010-12-22 | 江苏大学 | Permanent-magnet bias outer rotor radial AC hybrid magnetic bearing |
| CN202402482U (en) * | 2011-12-31 | 2012-08-29 | 河南速达电动汽车科技有限公司 | High-speed magnetic suspension bearing dedicated to flywheel energy storage battery |
-
2017
- 2017-04-20 CN CN201710259998.0A patent/CN106931035B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4961352A (en) * | 1988-02-24 | 1990-10-09 | Satcon Technology Corporation | Magnetic bearing and suspension system |
| EP0338933A1 (en) * | 1988-04-20 | 1989-10-25 | Societe De Mecanique Magnetique | Active magnetically suspended vibration device controlled in three axes |
| CN1752470A (en) * | 2005-11-10 | 2006-03-29 | 北京航空航天大学 | Small volume low watt consumption permanent magnet offset external rotor radial magnetic bearing |
| CN101922511A (en) * | 2010-08-25 | 2010-12-22 | 江苏大学 | Permanent-magnet bias outer rotor radial AC hybrid magnetic bearing |
| CN202402482U (en) * | 2011-12-31 | 2012-08-29 | 河南速达电动汽车科技有限公司 | High-speed magnetic suspension bearing dedicated to flywheel energy storage battery |
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| CN106931035A (en) | 2017-07-07 |
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