CN109026995B - A kind of diamagnetic suspension Minisize axial bearing rotor system - Google Patents
A kind of diamagnetic suspension Minisize axial bearing rotor system Download PDFInfo
- Publication number
- CN109026995B CN109026995B CN201810803935.1A CN201810803935A CN109026995B CN 109026995 B CN109026995 B CN 109026995B CN 201810803935 A CN201810803935 A CN 201810803935A CN 109026995 B CN109026995 B CN 109026995B
- Authority
- CN
- China
- Prior art keywords
- rotor
- suspension
- magnetic field
- permanent magnet
- diamagnetism
- 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.)
- Active
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
Abstract
The invention discloses a kind of anti-maglev micro rotor-support-foundation systems, it include: suspension system, rotary drive system, the suspension system and rotary drive system are staggered relatively, there is working gas gap in centre, the suspension system includes suspension rotor and magnetic field providing apparatus, the suspension rotor is disc, above magnetic field providing apparatus, suspension air gap between suspension rotor and magnetic field providing apparatus to be formed by magnetic field, the suspension rotor is made of diamagnetic material, magnetic field providing apparatus uses electromagnet or permanent magnet, rotary drive system uses magnetic field driving system or current vortex drive system.Anti- maglev micro rotor-support-foundation system of the invention realizes diamagnetic suspension bearing rotor system active rotation function, eddy-current loss when rotor rotation can be reduced, realize the micromation of bearing, without any energy input, room temperature can be thus achieved, passively, without friction, steady stability suspend, it is suspending stabilized.
Description
Technical field
The invention discloses a kind of anti-maglev micro rotor-support-foundation systems, belong to magnetic suspension bearing technical field.
Background technique
Bearing is widely used in all kinds of mechanical equipments as mostly important one of mechanical basic part.With people couple
Growing, one of the key equipment as MEMS of the demands such as lightweight, micromation and the precise treatment of engineering goods,
Miniature bearing causes the highest attention of related fields.
The miniature bearing of early stage is mainly dry friction bearing, designs and manufactures miniature bearing using micro-processing technology.But by
In scale effect, as micromachine geometric dimension reduces, surface to volume ratio becomes larger, the loss of mechanical contact bearing
Than sharply increasing.
Diamagnetic suspension is the technology for making its stable suspersion in magnetic field using the diamagnetism of diamagnetic substance, initially in 18 generation
Way of numbering the years discovery, but since coercive force itself is very faint, confrontation magnetic suspension did not carried out in-depth study to researcher at that time.Directly
To in the past 30 years, with the development of micro pipes and high-intensity magnetic field technology, diamagnetic suspension correlative study and application just start to rise.It is anti-
Magnetic suspension is not limited by grace (Earnshaws) theorem that continues, may be implemented room temperature, it is passive, suspend without friction, steady stability.?
It under scale effect, diamagnetic suspending power and is suspended the ratio between object gravity and reduces and increase with scale, have in miniature rotor very big
Application prospect.
Before making the present invention, in terms of diamagnetic suspension Minisize axial forwards son, domestic and international correlative study is in the starting stage, greatly
Part research lays particular emphasis on the physical characteristic research of diamagnetic suspension bearing rotor.And the realization for rotation function, Most scholars
Using gas as power source, to how actively to realize the rotation driving function research of diamagnetic suspension bearing rotor system at compared with
It is few.Such as in document Cansiz A, Hull J R.Stable load-carrying and rotational loss
characteristics of diamagnetic bearings[J].IEEE transactions on magnetics,
2004,40 (3): in 1636-1641., author blows diamagnetic suspension rotor operation using nitrogen, and stops gas push in rotor
Afterwards, using the characteristic of diamagnetic suspension rotor reduction of speed, the loss characteristic of diamagnetic suspension bearing is extrapolated.
Summary of the invention
Goal of the invention: the present invention is larger for existing miniature dry friction bearing loss, and novel diamagnetic suspension Minisize axial
Bearing rotor system does not have the limitation of autonomous rotation driving, proposes a kind of diamagnetic suspension Minisize axial bearing rotor system.
Technical solution:
A kind of anti-maglev micro rotor-support-foundation system, comprising: suspension system, rotary drive system, the suspension system and rotation
It is staggered relatively to turn drive system, there is a working gas gap in centre, and the suspension system includes suspension rotor and magnetic field providing apparatus, described
Suspension rotor is disc, is located above magnetic field providing apparatus, passes through magnetic field shape between suspension rotor and magnetic field providing apparatus
At suspension air gap, the suspension rotor using diamagnetic material make, magnetic field providing apparatus use electromagnet, the electromagnet
Including cylindrical type diamagnetism device, ring-like diamagnetism device, first coil winding and second coil winding, cylindrical type diamagnetism device
Part is nested in ring-like diamagnetism device；The diameter of cylindrical type diamagnetism device is identical as the internal diameter of ring-like diamagnetism device, circle
The length of column type diamagnetism device is greater than the length of ring-like diamagnetism device, and keeps plane in the two concordant when nesting, circle
Column type diamagnetism device lower end is not nested in the part of ring-like diamagnetism device, and outside is provided with first coil winding, First Line
It encloses winding and electromagnetic field is generated by electric current, ring-like diamagnetism device outer ring is provided with second coil winding, and second coil winding is logical
Overcurrent generates electromagnetic field, and the current direction passed through in second coil winding and first coil winding is on the contrary, generate two phases
Anti- magnetic field.
Further, magnetic field providing apparatus replaces electromagnet using permanent magnet, and the permanent magnet includes cylindrical type permanent magnet
Device and annular permanent magnet device, cylindrical type permanent magnet device are nested in annular permanent magnet device, cylindrical type permanent magnet device
Diameter it is identical as the internal diameter of annular permanent magnet device, height it is equal, cylindrical type permanent magnet device is placed in annular permanent magnet device
In inner ring, and cylindrical type permanent magnet device is opposite with the magnetizing direction of annular permanent magnet device.
Further, the material of the diamagnetism device is pyrolytic graphite.
Further, the diameter of suspension rotor is greater than the diameter of cylindrical type diamagnetism device, and the two difference is 0~+5mm.
Further, the material of permanent magnet is neodymium iron boron.
Further, the diameter of suspension rotor is greater than the diameter of cylindrical type permanent magnet device, and the two difference is 0~+5mm.
Further, the number of turns of second coil winding is more than or equal to the number of turns of first coil winding, and second coil winding
In the electric current that passes through be more than or equal to the electric current passed through in first coil winding.
Further, the rotary drive system uses magnetic field driving system, and magnetic field driving system includes that driving motor is fixed
Son, three-phase alternating-current supply, the driving motor stator include stator core, stator core winding, stator substrate, stator core around
Group is connect with three-phase alternating-current supply, and the top of suspension rotor, driving motor stator and suspension rotor is arranged in driving motor stator
Between have working gas gap, stator core is staggered relatively with suspension rotor, and the stator substrate of driving motor is circle, and driving motor is determined
The diameter of son is identical as suspension rotor diameter, and stator core includes multiple iron core units, centered on the stator substrate center of circle, between waiting
It is arranged on stator substrate every angle, when driving, the electric current of three-phase alternation is passed through in stator core winding, generates three-phase rotation
The suspension rotor of flat magnetic field, the flat magnetic field driving diamagnetic material production of three-phase rotation is rotated.
Further, the rotary drive system uses current vortex drive system, and current vortex drive system includes that electricity is mechanical, electrical
Source, motor include round rotor and round magnetic pole, and round rotor is made of flake aluminum, same with both suspension rotors
Together, round magnetic pole is adjacent with rotor for cardiosymphysis, and round magnetic pole is arranged above rotor, round magnetic pole and motor
There is air gap between rotor, round magnetic pole is made of fan permanent magnetism piece, and permanent magnetism piece is alternately arranged for N-S, and motor powers on, round magnetic
Pole rotates, and current vortex is generated on round rotor, and suspension rotor and round rotor is pushed to rotate together.
Further, the iron core unit is triangle.
The utility model has the advantages that
(1) anti-maglev micro rotor-support-foundation system of the invention realizes diamagnetic suspension bearing rotor system active rotation function
Energy；
(2) the diamagnetic suspending power of diamagnetic suspension bearing is positively correlated with rotor gravity ratio with rotor surface area, therefore in ruler
It spends under effect, the ratio between suspending power and rotor gravity reduce with scale and increase the micromation, it can be achieved that bearing；
(3) diamagnetic suspension is not limited by Earnshaws theorem, is not necessarily to any energy input, it can realizes room temperature, quilt
It moves, suspend without friction, steady stability；
(4) ring-like suspension magnetic is provided, eddy-current loss when rotor rotation is reduced；
(5) two kinds of drive schemes ensure that the round laminated structure of rotor, convenient for rotor machining and preparation；
(6) magnetic field driving system of the invention uses field drives scheme and current vortex drive scheme, drives with electrostatic field
It compares, it is ensured that it is suspending stabilized, avoid rotary driving force from destroying diamagnetic suspending power.
Detailed description of the invention
Fig. 1 is suspension system general structure schematic diagram as schemed.
Fig. 2 is bath-tub type magnetic field energy distribution schematic diagram.
Fig. 3 is magnetic field generation device structure top view when generating the magnetic field of bath-tub type magnetic field energy distribution using electromagnet.
Fig. 4 is magnetic field generation device structural side view when generating the magnetic field of bath-tub type magnetic field energy distribution using electromagnet.
Fig. 5 is magnetic field generation device structure top view when generating the magnetic field of bath-tub type magnetic field energy distribution using permanent magnet.
Fig. 6 is magnetic field generation device structural side view when generating the magnetic field of bath-tub type magnetic field energy distribution using permanent magnet.
Fig. 7 is whole system side view when being driven using magnetic field scheme.
Fig. 8 is when being driven using magnetic field scheme, and the structure of driving motor arranges bottom view.
Fig. 9 is whole system side view when being driven using current vortex scheme.
Figure 10 is to drive the structure of magnetic pole to arrange bottom view when driving using current vortex scheme.
Specific embodiment
Further explanation is done to the present invention with reference to the accompanying drawing.
The invention discloses a kind of anti-maglev micro rotor-support-foundation systems, comprising: suspension system, rotary drive system suspend
System and rotary drive system are staggered relatively, and the two does not contact, and there is working gas gap in centre, and suspension system includes 1 He of suspension rotor
Magnetic field providing apparatus 2, as shown in Figure 1, magnetic field providing apparatus 2 makes suspension rotor 1 suspend, rotary drive system can drive suspension to turn
Son 1 rotates, and suspension rotor 1 is disc, and a diameter of 20mm, thickness 0.5mm are located at 2 top of magnetic field providing apparatus, suspend and turn
Suspension air gap between son 1 and magnetic field providing apparatus 2 to be formed by magnetic field；As shown in Fig. 2, magnetic field providing apparatus 2 can produce
The distribution of bath-tub type magnetic field energy, suspension rotor 1 are made of diamagnetic material, and the material of diamagnetism device is pyrolytic graphite；Magnetic
Device 2 is provided and uses electromagnet, specific structure such as Fig. 3, as indicated at 4, electromagnet includes cylindrical type diamagnetism device 3, ring-like
Diamagnetism device 4, first coil winding 5 and second coil winding 6, cylindrical type diamagnetism device 3 are nested in ring-like diamagnetism device
In part 4；The diameter of cylindrical type diamagnetism device 3 is identical as the internal diameter of ring-like diamagnetism device 4, cylindrical type diamagnetism device 3
Length is greater than the length of ring-like diamagnetism device 4, and keeps plane in the two concordant when nesting, cylindrical type diamagnetism device 3
Lower end is not nested in the part of ring-like diamagnetism device 4, and outside is provided with first coil winding 5, and first coil winding 5 passes through electricity
The raw electromagnetic field of miscarriage, ring-like 4 outer ring of diamagnetism device are provided with second coil winding 6, and second coil winding 6 passes through electric current and generates
Electromagnetic field, and the current direction passed through in second coil winding 6 and first coil winding 5 is on the contrary, generate two opposite magnetic fields.
The number of turns of second coil winding 6 is more than or equal to the number of turns of first coil winding 5, and the electric current passed through in second coil winding 6 is big
In equal to the electric current passed through in first coil winding 5.The diameter of suspension rotor 1 be greater than cylindrical type diamagnetism device 3 diameter, two
Person's difference is 0~+5mm.
Magnetic field providing apparatus 2 can replace electromagnet using permanent magnet, and the material of permanent magnet is neodymium iron boron Nd-Fe-B, forever
Magnet includes cylindrical type permanent magnet device 7 and annular permanent magnet device 8, and as shown in Figure 5, Figure 6, cylindrical type permanent magnet device 7 is embedding
Cover in annular permanent magnet device 8, generate bath-tub type magnetic field energy distribution magnetic field, the diameter of cylindrical type permanent magnet device 7 with
The internal diameter of annular permanent magnet device 8 is identical, and height is equal, and cylindrical type permanent magnet device 7 is placed in 8 inner ring of annular permanent magnet device
In, cylindrical type permanent magnet diameter is 16mm, high 7mm.Annular permanent magnet device internal diameter is 16mm, outer diameter 30mm, high 7mm, circle
The magnetizing direction of column type permanent magnet device 7 and annular permanent magnet device 8 is on the contrary, the diameter of suspension rotor 1 is greater than cylindrical type permanent magnetism
The diameter of body device 7, the two difference are 0~+5mm.
Rotary drive system uses magnetic field driving system, and magnetic field driving system includes driving motor stator 9, three-phase alternating current
Source, driving motor stator 9 include stator core 10, stator core winding 11, and stator core winding 11 and three-phase alternating-current supply connect
It connects, as shown in Figure 7, Figure 8, driving motor stator 9 is placed on the top of suspension rotor 1, driving motor stator 9 and suspension rotor 1
Between have working gas gap, stator core 10 and suspension rotor 1 are staggered relatively, and the stator substrate 12 of driving motor is circle, driving electricity
The diameter of the stator 9 of machine is identical as 1 diameter of suspension rotor, and stator core 10 includes multiple iron core units, with the circle of stator substrate 12
Centered on the heart, angle is arranged on stator substrate 12 at equal intervals, and when driving, the electricity of three-phase alternation is passed through in stator core winding 11
Stream generates the flat magnetic field of three-phase rotation, makees since the suspension rotor 1 using diamagnetic substance production can generate to resist to magnetic field
It is rotated with the suspension rotor 1 of the flat magnetic field driving diamagnetic material production of, three-phase rotation, when driving, three-phase rotation
The change frequency of flat magnetic field is gradually supreme by low promotion, and 1 speed of suspension rotor also starts simultaneously at promotion.
Rotary drive system uses current vortex drive system, and current vortex drive system includes motor 15, power supply, and motor 15 wraps
Round rotor 13 and round magnetic pole 14 are included, as shown in Figures 9 and 10, round rotor 13 is made of flake aluminum, with suspension
Both rotors 1 are bonded together with one heart, and round magnetic pole 14 is adjacent with rotor 13, and round magnetic is provided with above rotor 13
There is air gap in pole 14 between round magnetic pole 14 and rotor 13, round magnetic pole 14 is made of fan permanent magnetism piece, and permanent magnetism piece is N-S friendship
For arrangement, motor 15 powers on, and round magnetic pole 14 rotates, and current vortex is generated on round rotor 13, pushes suspension rotor 1
It is rotated together with round rotor 13.Magnetic field driving system of the invention can guarantee suspending stabilized, avoid rotary driving force
Destroy diamagnetic suspending power.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of anti-maglev micro rotor-support-foundation system characterized by comprising suspension system, rotary drive system, the suspension
System and rotary drive system are staggered relatively, and there is working gas gap in centre, and the suspension system includes that suspension rotor (1) and magnetic field mention
For device (2), the suspension rotor (1) is disc, is located above magnetic field providing apparatus (2), and suspension rotor (1) is mentioned with magnetic field
For the suspension air gap formed between device (2) by magnetic field, the suspension rotor (1) is made of diamagnetic material, magnetic field
Device (2) are provided and use electromagnet, the electromagnet includes cylindrical type diamagnetism device (3), ring-like diamagnetism device (4), the
One coil windings (5) and second coil winding (6), cylindrical type diamagnetism device (3) are nested in ring-like diamagnetism device (4)；
The diameter of cylindrical type diamagnetic material device (3) is identical as the internal diameter of ring-like diamagnetism device (4), cylindrical type diamagnetism device
(3) length is greater than the length of ring-like diamagnetism device (4), and keeps plane in the two concordant when nesting, and cylindrical type is diamagnetic
Property device (3) lower end is not nested in the part of ring-like diamagnetism device (4), and outside is provided with first coil winding (5), First Line
It encloses winding (5) and electromagnetic field is generated by electric current, ring-like diamagnetism device (4) outer ring is provided with second coil winding (6), the second line
It encloses winding (6) and electromagnetic field, and the electric current side passed through in second coil winding (6) and first coil winding (5) is generated by electric current
To on the contrary, generating two opposite magnetic fields.
2. a kind of anti-maglev micro rotor-support-foundation system according to claim 1, it is characterised in that: magnetic field providing apparatus (2)
Electromagnet is replaced using permanent magnet, the permanent magnet includes cylindrical type permanent magnet device (7) and annular permanent magnet device (8), circle
Column type permanent magnet device (7) is nested in annular permanent magnet device (8), the diameter of cylindrical type permanent magnet device (7) and it is ring-like forever
The internal diameter of Magnet (8) is identical, and height is equal, and cylindrical type permanent magnet device (7) is placed in annular permanent magnet device (8) inner ring
In, and cylindrical type permanent magnet device (7) is opposite with the magnetizing direction of annular permanent magnet device (8).
3. a kind of anti-maglev micro rotor-support-foundation system according to claim 1, it is characterised in that: the diamagnetism device
Material is pyrolytic graphite.
4. a kind of anti-maglev micro rotor-support-foundation system according to claim 1, it is characterised in that: suspension rotor (1) it is straight
Diameter is greater than the diameter of cylindrical type diamagnetism device (3), and the two difference is 0~+5mm.
5. a kind of anti-maglev micro rotor-support-foundation system according to claim 1, it is characterised in that: second coil winding (6)
The number of turns be more than or equal to first coil winding (5) the number of turns, and the electric current passed through in second coil winding (6) be more than or equal to first
The electric current passed through in coil windings (5).
6. a kind of anti-maglev micro rotor-support-foundation system according to claim 2, it is characterised in that: the material of permanent magnet is neodymium
Iron boron.
7. a kind of anti-maglev micro rotor-support-foundation system according to claim 2, it is characterised in that: suspension rotor (1) it is straight
Diameter is greater than the diameter of cylindrical type permanent magnet device (7), and the two difference is 0~+5mm.
8. a kind of anti-maglev micro rotor-support-foundation system according to claim 1 or 2, it is characterised in that: the rotation driving
System uses magnetic field driving system, and magnetic field driving system includes driving motor stator (9), three-phase alternating-current supply, the driving electricity
Machine stator (9) includes stator core (10), stator core winding (11), stator substrate (12), stator core winding (11) and three
The connection of phase AC power source, driving motor stator (9) setting turn in the top of suspension rotor (1), driving motor stator (9) and suspension
There is working gas gap between sub (1), stator core (10) and suspension rotor (1) are staggered relatively, and the stator substrate (12) of driving motor is
The diameter of circle, the stator (9) of driving motor is identical as suspension rotor (1) diameter, and stator core (10) includes multiple iron core lists
Member, centered on stator substrate (12) center of circle, angle is arranged on stator substrate (12) at equal intervals, when driving, stator core around
It is passed through the electric current of three-phase alternation in group (11), generates the flat magnetic field of three-phase rotation, the flat magnetic field driving of three-phase rotation is diamagnetic
Property material production suspension rotor (1) rotated.
9. a kind of anti-maglev micro rotor-support-foundation system according to claim 1 or 2, it is characterised in that: the rotation driving
System uses current vortex drive system, and current vortex drive system includes motor (15), power supply, and motor (15) includes that round motor turns
Sub (13) and round magnetic pole (14), round rotor (13) are made of flake aluminum, with the same cardiosymphysis of both suspension rotors (1)
Together, round magnetic pole (14) is adjacent with rotor (13), and round magnetic pole (14) setting is round above rotor (13)
There is air gap between magnetic pole (14) and rotor (13), round magnetic pole (14) is made of fan permanent magnetism piece, and permanent magnetism piece is that N-S replaces cloth
It sets, motor (15) powers on, round magnetic pole (14) rotation, generates current vortex on round rotor (13), suspension is pushed to turn
Sub (1) and round rotor (13) rotate together.
10. a kind of anti-maglev micro rotor-support-foundation system according to claim 8, it is characterised in that: the iron core unit is
Triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803935.1A CN109026995B (en) | 2018-07-20 | 2018-07-20 | A kind of diamagnetic suspension Minisize axial bearing rotor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810803935.1A CN109026995B (en) | 2018-07-20 | 2018-07-20 | A kind of diamagnetic suspension Minisize axial bearing rotor system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109026995A CN109026995A (en) | 2018-12-18 |
| CN109026995B true CN109026995B (en) | 2019-10-11 |
Family
ID=64644697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810803935.1A Active CN109026995B (en) | 2018-07-20 | 2018-07-20 | A kind of diamagnetic suspension Minisize axial bearing rotor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109026995B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327603B (en) * | 2020-10-13 | 2021-12-21 | 南京航空航天大学 | Method for predicting thermal bending vibration in magnetic suspension bearing rotor system |
| CN115458273B (en) * | 2022-11-09 | 2023-05-02 | 之江实验室 | Double-layer cylindrical permanent magnet anti-magnetic suspension device and preparation and application methods thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0157694B1 (en) * | 1984-03-26 | 1988-12-28 | SOCIETE EUROPEENNE DE PROPULSION (S.E.P.) Société Anonyme dite: | Electromagnetic radial bearing with a massive rotor for damping critical frequencies |
| US5084644A (en) * | 1990-12-20 | 1992-01-28 | Nova Corporation Of Alberta | Control of magnetization of a machine with axial magnetic bearings |
| JP2013231471A (en) * | 2012-04-27 | 2013-11-14 | Seikow Chemical Engineering & Machinery Ltd | Fluid transfer device |
| WO2015176830A1 (en) * | 2014-05-22 | 2015-11-26 | Siemens Aktiengesellschaft | Steam turbine with sealing shell and magnetic bearing arranged therein |
| CN107070072A (en) * | 2017-03-29 | 2017-08-18 | 江苏大学 | A kind of suspension of five-freedom degree magnetic energy accumulation device for fly wheel |
| RU2638392C2 (en) * | 2015-12-29 | 2017-12-13 | Акционерное общество "ТВЭЛ" (АО "ТВЭЛ") | Magnetic support with additional magnetic system |
| WO2018044513A1 (en) * | 2016-08-31 | 2018-03-08 | Carrier Corporation | Magnetic thrust bearing |
| CN108282055A (en) * | 2017-01-06 | 2018-07-13 | 邱金和 | Combined power generation unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101803517B1 (en) * | 2015-12-15 | 2017-11-30 | 정완용 | Hybrid magnetic bearing |
-
2018
- 2018-07-20 CN CN201810803935.1A patent/CN109026995B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0157694B1 (en) * | 1984-03-26 | 1988-12-28 | SOCIETE EUROPEENNE DE PROPULSION (S.E.P.) Société Anonyme dite: | Electromagnetic radial bearing with a massive rotor for damping critical frequencies |
| US5084644A (en) * | 1990-12-20 | 1992-01-28 | Nova Corporation Of Alberta | Control of magnetization of a machine with axial magnetic bearings |
| JP2013231471A (en) * | 2012-04-27 | 2013-11-14 | Seikow Chemical Engineering & Machinery Ltd | Fluid transfer device |
| WO2015176830A1 (en) * | 2014-05-22 | 2015-11-26 | Siemens Aktiengesellschaft | Steam turbine with sealing shell and magnetic bearing arranged therein |
| RU2638392C2 (en) * | 2015-12-29 | 2017-12-13 | Акционерное общество "ТВЭЛ" (АО "ТВЭЛ") | Magnetic support with additional magnetic system |
| WO2018044513A1 (en) * | 2016-08-31 | 2018-03-08 | Carrier Corporation | Magnetic thrust bearing |
| CN108282055A (en) * | 2017-01-06 | 2018-07-13 | 邱金和 | Combined power generation unit |
| CN107070072A (en) * | 2017-03-29 | 2017-08-18 | 江苏大学 | A kind of suspension of five-freedom degree magnetic energy accumulation device for fly wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109026995A (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102305242B (en) | Radial-axial three-degree-of-freedom alternating current-direct current hybrid magnetic bearing | |
| CN104265761B (en) | The three freedom degree mixed magnetic bearing of a kind of axle-radially | |
| WO2018053958A1 (en) | Low frequency random vibration-oriented electromagnetic energy harvester | |
| CN102900761B (en) | Permanent magnet biased axial hybrid magnetic bearing | |
| CN103016525A (en) | Constant current biased radial-axial magnetic bearing | |
| CN105673688B (en) | A kind of self-regulated integer five degree of freedom magnetic bearing | |
| CN106979225B (en) | A kind of taper axial magnetic bearing | |
| CN204186802U (en) | A kind of Novel shaft-radial three freedom degree mixed magnetic bearing | |
| CN105846624A (en) | Double stator bearingless magnetic flux switching permanent magnetic motor | |
| CN109026995B (en) | A kind of diamagnetic suspension Minisize axial bearing rotor system | |
| CN101769335A (en) | Low power-consumption hybrid magnetic bearing with permanent-magnetic upper attracting and lower repelling structure | |
| JP6503590B2 (en) | Electric rotating machine and bulk magnetizing method | |
| CN102480175A (en) | Bearingless levitation rotor permanent magnet motor | |
| CN103216528A (en) | One-side hybrid axial magnetic bearing | |
| CN103047283B (en) | Large-air gap five-freedom degree miniature magnetic bearing and working method | |
| CN106958589A (en) | Halbach permanent magnetism passive type axial magnetic suspension bearings with damping action | |
| CN103066782A (en) | Magnetoelectricity type micro generator | |
| CN202883726U (en) | Permanent magnet bias magnet axial mixed magnetic bearing | |
| CN108599500B (en) | Stator permanent magnet type outer rotor sheet bearingless asynchronous motor | |
| CN103939465A (en) | Magnetic bearing with single freedom degree | |
| CN204284204U (en) | A kind of low power consumption permanent magnet biased axial hybrid magnetic bearing | |
| CN108696190A (en) | A kind of Three Degree Of Freedom permanent magnet type non-bearing motor with magnetism-isolating loop | |
| CN111102234B (en) | Permanent magnet biased magnetic suspension bearing | |
| CN103023265A (en) | Bearingless permanent magnet slice motor | |
| CN112953309A (en) | Permanent magnet synchronous magnetic suspension motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |