CN107989896A - Axial and radial integration magnetic levitation bearing system - Google Patents
Axial and radial integration magnetic levitation bearing system Download PDFInfo
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- CN107989896A CN107989896A CN201711331259.4A CN201711331259A CN107989896A CN 107989896 A CN107989896 A CN 107989896A CN 201711331259 A CN201711331259 A CN 201711331259A CN 107989896 A CN107989896 A CN 107989896A
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- Prior art keywords
- bearing
- axial
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- radial
- cod
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Classifications
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- 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
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- 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
- F16C32/0489—Active magnetic bearings for rotary movement with active support of five degrees of freedom, e.g. two radial magnetic bearings combined with an axial bearing
Abstract
The invention discloses a kind of Axial and radial integration magnetic levitation bearing system, including shaft, control shaft the movement of radial direction both direction radial direction magnetic bearing, control shaft the movement of axial single direction axial magnetic bearing and auxiliary bearing, radial direction magnetic bearing, axial magnetic bearing and auxiliary bearing are coaxially mounted in shaft, and radial direction magnetic bearing, axial magnetic bearing and auxiliary bearing are set on the both sides of the magnetic suspension support object connected in shaft and are symmetrical arranged using magnetic suspension support object as symmetrical centre successively.In the Axial and radial integration magnetic levitation bearing system of the present invention, axial magnetic bearing is divided into two parts, the both ends of two radial direction magnetic bearings are respectively placed in, are greatly saved the axial length of whole magnetic suspension system, are conducive to the maintenance and replacement of the important components such as magnetic bearing coil；Axial magnetic bearing, radial direction magnetic bearing are structurally independent, and magnetic field is independent of each other；Auxiliary bearing can provide larger Axial and radial load.
Description
Technical field
The invention belongs to magnetic suspension bearing field, and in particular to a kind of Axial and radial integration magnetic levitation bearing system.
Background technology
Due to the limitation of soft magnetic materials degree of saturation, for magnetic bearing for mechanical bearing, its rigidity is relatively low, volume phase
To larger；Being limited by complicated space structure, the maintenance and replacement of the important component such as magnetic bearing coil, sensor are more difficult,
Therefore the space availability ratio of magnetic suspension bearing is improved, shorten rotor axial length and improves reliability and the maintenance of magnetic suspension bearing
Property is always the important research target of magnetic suspension bearing.
In general, the structure optimization of magnetic bearing in itself is that the space availability ratio of system is improved from component aspect, and to magnetic
Bearing arrangement combination optimizes, and means to improve the integration degree of system from system level.
At present, the optimum ideals of system level mainly use multiple degrees of freedom bearing in magnetic suspension bearing system, by original
The mode of first "+two journal bearings of a cod " be changed to " axial direction-journal bearing of journal bearing+one " or
The mode of " two axial direction-journal bearings ".However, the degree of coupling between the Axial and radial of this multiple degrees of freedom magnetic bearing is too high, no
Beneficial to improving control characteristic, and there are maintainability it is poor the problem of, therefore practical application is less.
The content of the invention
It is an object of the present invention in view of the deficienciess of the prior art, provide that a kind of integration degree is high, maintainability is good
Axial and radial integration magnetic levitation bearing system.
To achieve the above object, the Axial and radial integration magnetic levitation bearing system designed by the present invention includes shaft, control
Axis of the shaft in the movement in axial single direction of radial direction magnetic bearing, the control shaft of the movement of radial direction both direction
To magnetic bearing and auxiliary bearing, the radial direction magnetic bearing, the axial magnetic bearing and the auxiliary bearing are coaxially mounted to described
In shaft, the radial direction magnetic bearing, the axial magnetic bearing and the auxiliary bearing are set on what is connected in the shaft successively
The both sides of magnetic suspension support object are simultaneously symmetrical arranged using magnetic suspension support object as symmetrical centre.
Preferably, the shaft is with the electromagnetism demand by the radial direction magnetic bearing and the axial magnetic bearing
The high strength alloy steel of definite permeance is made.
Preferably, the radial direction magnetic bearing is electromagnetic bearing or composite excitation bearing；The axial magnetic bearing
For electromagnetic bearing, or the composite excitation bearing of tandem or interstice.
Preferably, the radial direction magnetic bearing includes journal bearing stator core, journal bearing rotor core, radial direction
Bearing stator coil and the radial displacement transducer for detecting radial displacement value, the journal bearing stator core are with 8 poles, 12
Pole or the annular magnetizer of 16 poles, coiling one is corresponded on each magnetic pole of the journal bearing stator core and is carried out at encapsulating
The journal bearing stator coil of reason, the journal bearing rotor core is radially spaced to be co-axially located at the journal bearing
In stator core, the radial direction magnetic no more than 1mm is left between the journal bearing stator core, the journal bearing rotor core
Bearing working air gap.
Preferably, the axial magnetic bearing includes cod stator core, cod rotor propulsion disc, axis
To the shaft position sensor of the shift value of bearing stator coil and the detection cod stator core radially, filled
The cod stator coil of glue processing is placed in the annular groove of the cod stator core, the cod
Rotor propulsion disc with the cod stator core is axially spaced is coaxially disposed, the cod rotor propulsion disc and institute
State the axial magnetic bearing working gas gap formed between cod stator core no more than 2mm.
Preferably, radial direction magnetic bearing working gas gap takes 0.5mm, and the axial magnetic bearing working gas gap takes 1.2mm.
Preferably, the journal bearing stator core, the journal bearing rotor core are silicon steel laminations,
The journal bearing rotor core hot jacket is installed in the shaft；The cod stator core, the axial axis are forwarded
Sub- thrust disc is high magnetic permeability single solid steel, and the cod rotor propulsion disc needs to be selected according to the maximum speed of the shaft
High strength alloy steel is taken, the cod rotor propulsion disc hot jacket is in the shaft.
Preferably, 4 radial displacement transducers are homogeneously disposed in the surrounding of the journal bearing rotor core；
4 shaft position sensors are uniformly arranged in cod stator core periphery, the probe of the shaft position sensor
At the ladder of the cod rotor propulsion disc.
Preferably, the shaft position sensor and 30 °~60 ° adjacent of the radial displacement transducer interval
Place.
Preferably, the auxiliary bearing includes ball bearing, bearing holder (housing, cover) and bearing block, and the bearing is set on institute
State in ball bearing and in the shaft, the bearing block is arranged on outside the ball bearing, the nested damping of the bearing block
Alloy material.
The beneficial effects of the invention are as follows：The Axial and radial integration magnetic levitation bearing system of the present invention has the following advantages：(1)
Axial magnetic bearing is divided into two parts, is respectively placed in the both ends of two radial direction magnetic bearings, is greatly saved whole magnetcisuspension
The axial length of floating system, is conducive to the maintenance and replacement of the important components such as magnetic bearing coil；(2) axial magnetic bearing, radial direction magnetic
Bearing is structurally independent, and magnetic field is independent of each other, therefore is all decoupling no matter from electromagnetic design or the angle controlled；(3)
Auxiliary bearing can provide larger Axial and radial load.
Brief description of the drawings
Fig. 1 is the main structure diagram of the Axial and radial integration magnetic levitation bearing system of the preferred embodiment of the present invention.
Fig. 2 is that the circumferential direction of the radial direction magnetic bearing of the Axial and radial integration magnetic levitation bearing system in Fig. 1 clips a quarter
The dimensional structure diagram behind part corresponding to central angle.
Fig. 3 is the main structure diagram of the radial direction magnetic bearing in Fig. 2.
Fig. 4 is the side structure schematic view of the radial direction magnetic bearing in Fig. 2.
Fig. 5 is that the circumferential direction of the axial magnetic bearing of the Axial and radial integration magnetic levitation bearing system in Fig. 1 clips a quarter
The dimensional structure diagram behind part corresponding to central angle.
Fig. 6 is the main structure diagram of the axial magnetic bearing in Fig. 5.
Fig. 7 is the side structure schematic view of the axial magnetic bearing in Fig. 5.
Fig. 8 is that a quarter center of circle angle is circumferentially clipped in the side of the Axial and radial integration magnetic levitation bearing system in Fig. 1
Dimensional structure diagram behind corresponding part.
Fig. 9 is the side structure schematic view of the Axial and radial integration magnetic levitation bearing system in Fig. 8.
Figure 10 is the main structure diagram after the rotation angle of the Axial and radial integration magnetic levitation bearing system in Fig. 8.
Each part numbers are as follows in figure：Shaft 10, radial direction magnetic bearing 20 (wherein, journal bearing stator core 21, radial axle
Hold rotor core 22, journal bearing stator coil 23, radial displacement transducer 24), 30 (wherein, cod of axial magnetic bearing
Stator core 31, cod rotor propulsion disc 32, cod stator coil 33, shaft position sensor 34), auxiliary bearing
40 (wherein, ball bearing 41, bearing holder (housing, cover) 42, bearing blocks 43), magnetic suspension support object 50.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 1, its structural representation for the Axial and radial integration magnetic levitation bearing system of the preferred embodiment of the present invention
Figure.The Axial and radial integration magnetic levitation bearing system of the preferred embodiment of the present invention is to support object 50 symmetrically to tie with magnetic suspension
Structure, more specifically, magnetic suspension support object 50 are set in shaft 10, radial direction magnetic bearing 20, axial magnetic bearing 30 and auxiliary
Bearing 40 is set on the both sides of magnetic suspension support object 50 in shaft 10 and supports object 50 with magnetic suspension as symmetrical centre successively
It is symmetrical arranged.Radial direction magnetic bearing 20 controls movement of the shaft 10 in radial direction both direction.Axial magnetic bearing 30 controls shaft 10 to exist
The movement of axial single direction.Magnetic suspension support object 50 includes 20, axial magnetic bearings of a radial direction magnetic bearing per side
30 and an auxiliary bearing 40, both sides synergy can control five frees degree of shaft 10 (magnetic suspension supports object 50).
Shaft 10 is made of high strength alloy steel, its permeance depends on radial direction magnetic bearing 20 and axial magnetic bearing 30
Electromagnetism demand.Shaft 10 is the peace of radial direction magnetic bearing 20, axial magnetic bearing 30, auxiliary bearing 40 and magnetic suspension support object 50
Fill axis.
In the present embodiment, radial direction magnetic bearing 20, axial magnetic bearing 30 are electromagnetic bearing, in practical applications, radially
Magnetic bearing 20 can also select composite excitation type bearing.
Fig. 2, Fig. 3 and Fig. 4 are please referred to, it is the structure diagram of the radial direction magnetic bearing 20 in Fig. 1.Radial direction magnetic bearing
20 include journal bearing stator core 21, journal bearing rotor core 22, journal bearing stator coil 23 and radial displacement sensing
Device 24.Journal bearing stator core 21 can be with 8 poles, 12 poles, 16 poles annular magnetizer, journal bearing stator core 21
The journal bearing stator coil 23 of one excitation of coiling is corresponded on each magnetic pole, journal bearing stator coil 23 need to be carried out at encapsulating
Reason.Illustrate in embodiment, journal bearing stator core 21 is the ring-shaped core with 12 poles.The journal bearing stator core of annular
It is radially spaced in 21 to be coaxially provided with journal bearing rotor core 22, journal bearing stator core 21, journal bearing rotor core
The radial direction magnetic bearing working gas gap no more than 1mm is left between 22.In the present embodiment, radial direction magnetic bearing working gas gap preferably takes
0.5mm.Journal bearing stator core 21, journal bearing rotor core 22 are silicon steel laminations, journal bearing rotor core 22
Hot jacket is installed in shaft 10.Radial displacement transducer 24 is uniformly arranged in the periphery of journal bearing rotor core 22, for detecting
The shift value of journal bearing rotor core 22 (i.e. shaft 10) radially.In figure embodiment, 4 radial displacement transducers 24 are uniform
It is positioned over the surrounding of journal bearing rotor core 22.
Fig. 5, Fig. 6 and Fig. 7 are please referred to, it is the structure diagram of the axial magnetic bearing 30 in Fig. 1.Axial magnetic bearing
30, which include cod stator core 31, cod rotor propulsion disc 32, cod stator coil 33 and axial displacement, passes
Sensor 34.In the present embodiment, cod stator core 31 is the solid steel construction of high magnetic permeability, and cod stator coil 33 is put
In in the annular groove of cod stator core 31, the cod stator coil 33 of excitation need to carry out encapsulating processing.It is axial
Bearing rotor thrust disc 32 with cod stator core 31 is axially spaced is coaxially disposed.Cod rotor propulsion disc 32 with
Cod stator core 31 forms the axial magnetic bearing working gas gap no more than 2mm.In the present embodiment, axial magnetic bearing work
Air gap preferably takes 1.2mm.Cod stator core 31, cod rotor propulsion disc 32 are high magnetic permeability single solid steel, and axis
Need to choose high strength alloy steel according to the maximum speed of rotor (shaft 10) to bearing rotor thrust disc 32.Cod rotor
32 hot jacket of thrust disc is in shaft 10.Shaft position sensor 34 is uniformly arranged in the periphery of cod stator core 31, is used for
Detect the shift value of cod stator core 31 (i.e. shaft 10) radially.Shaft position sensor 34 is using in radial arrangement
Displacement sensor to measure axial displacement indirectly, and shaft position sensor 34 is spaced necessarily with adjacent radial displacement transducer 24
(30 °~60 °) placements of angle, and the probe of shaft position sensor 34 is at the ladder of cod rotor propulsion disc 32.
The operation principle of shaft position sensor 34 is as follows：Using cod rotor propulsion disc 32 as measured body, and
The step that the range of the exterior rim of cod rotor propulsion disc 32 along processing and shaft position sensor 34 matches, works as rotor
When (shaft 10, cod rotor propulsion disc 32) moves axially, probe and the cod rotor of shaft position sensor 34
The relative position of the step of thrust disc 32 changes, this change is converted to analog signal output by sensor, can extract
This signal obtains axial displacement data.
Fig. 8, Fig. 9 and Figure 10 are please referred to, auxiliary bearing 40 includes ball bearing 41, bearing holder (housing, cover) 42 and bearing block 43, axis
Bearing sleeve 42 is installed in shaft 10 ball bearing 41 being installed on shaft 10, and bearing block 43 is arranged on outside ball bearing 42.Auxiliary bearing
40 can provide larger Axial and radial load, the nested damp alloy material of bearing block 43, and auxiliary bearing 40 plays rotor (shaft 10)
Fall protection function, reduces when rotor falls to the impact force of auxiliary bearing.
The operation principle of the Axial and radial integration magnetic levitation bearing system of the preferred embodiment of the present invention is as follows：Radial direction magnetic bearing
20th, 30 independent operating of axial magnetic bearing, does not interfere with each other.Radial direction magnetic bearing 20 controls rotor (shaft 10 and magnetic suspension support object
50) (the radial direction of the Exciting Windings for Transverse Differential Protection in the movement of the radial direction free degree, the stator (journal bearing stator core 21) of radial direction magnetic bearing 20
Bearing stator coil 23) two kinds of magnetic fields of electric current generation --- bias magnetic field and control magnetic field.When rotor (shaft 10, journal bearing
Rotor core 22) when occurring eccentric, the exciting current of the journal bearing stator coil 23 for the magnetic pole that working gas gap reduces reduces, right
The control magnetic field answered reduces, and the change of the journal bearing stator coil 23 of working gas gap increase is opposite.Since bias magnetic field is distinguished
Produce size is identical, direction is opposite magnetic field in two working gas gaps of the same direction of motion, behind superposing control magnetic field, one
Magnetic field-enhanced, the field weakening of another working gas gap (air gap that size reduces) of working gas gap (air gap of size increase),
Journal bearing rotor core 22 is subject to the electromagnetic force opposite with eccentric direction, and restore balance position.
The operation principle of axial magnetic bearing 30 is similar with the operation principle of radial direction magnetic bearing 20, Axial and radial integration magnetic suspension
Bearing arrangement needs the axial magnetic bearing 30 of both sides while acts on that rotor (shaft 10, cod rotor propulsion disc could be controlled
32) axial freedom.
Compared with existing magnetic suspension system, Axial and radial integration magnetic levitation bearing system of the invention has the characteristics that：
(1) axial magnetic bearing is divided into two parts, is respectively placed in the both ends of two radial direction magnetic bearings, greatly saves
The axial length of whole magnetic suspension system, is conducive to the maintenance and replacement of the important components such as magnetic bearing coil.
(2) axial magnetic bearing, radial direction magnetic bearing are structurally independent, and magnetic field is independent of each other, therefore no matter from electromagnetic design
Or the angle of control, is all decoupling.
(3) radial direction magnetic bearing can select electromagnetic bearing, can also select composite excitation bearing, can be according to application spirit
Selection living.
(4) axial magnetic bearing preferably uses electromagnetic bearing, it is possible to use the composite excitation bearing of tandem or interstice.
(5) auxiliary bearing can provide larger Axial and radial load, be nested with damp alloy material, effectively reduce rotor and fall
When to the impact force of auxiliary bearing.
(6) shaft position sensor uses radial arrangement displacement sensor, measures the mode of axial displacement indirectly, avoids
The problem of due to installation shaft coupling on axle stretch end and the shaft position sensor brought that is connected with prime mover can not be installed.
In conclusion the Axial and radial integration magnetic levitation bearing system of the present invention is with efficient integrated magnetic levitation bearing system
For goal in research, magnetic levitation bearing system is optimized from system level, there is provided a kind of axial length is short, spatial volume is small,
The high Axial and radial integration magnetic levitation bearing system of integration degree, with axial length is short, spatial volume is small, integration degree
High, the features such as maintainability is good, there is wide application prospect in fields such as flywheel energy storage, high-speed electric expreess locomotive, high-speed turbine machineries.
Embodiment described above only expresses the several embodiments of the present invention, its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. Axial and radial integration magnetic levitation bearing system, it is characterised in that：The Axial and radial integration magnetic suspension bearing system System includes the radial direction magnetic bearing (20) of the movement of shaft (10), the control shaft (10) in radial direction both direction, control described in Shaft (10) is in the axial magnetic bearing (30) and auxiliary bearing (40) of the movement of axial single direction, the radial direction magnetic bearing (20), the axial magnetic bearing (30) and the auxiliary bearing (40) are coaxially mounted in the shaft (10), the radial direction magnetic Bearing (20), the axial magnetic bearing (30) and the auxiliary bearing (40) are set on the magnetic connected in the shaft (10) successively The both sides of suspension support object (50) are simultaneously symmetrical arranged with magnetic suspension support object (50) for symmetrical centre.
- 2. Axial and radial integration magnetic levitation bearing system according to claim 1, it is characterised in that：The shaft (10) is The high intensity of the permeance determined with the electromagnetism demand by the radial direction magnetic bearing (20) and the axial magnetic bearing (30) Steel alloy is made.
- 3. Axial and radial integration magnetic levitation bearing system according to claim 1, it is characterised in that：The radial direction magnetic bearing (20) it is electromagnetic bearing or composite excitation bearing；The axial magnetic bearing (30) is electromagnetic bearing, or tandem or second The composite excitation bearing of air gap.
- 4. Axial and radial integration magnetic levitation bearing system according to claim 3, it is characterised in that：The radial direction magnetic bearing (20) journal bearing stator core (21), journal bearing rotor core (22), journal bearing stator coil (23) and detection are included The radial displacement transducer (24) of radial displacement value, the journal bearing stator core (21) are with 8 poles, 12 poles or 16 poles Annular magnetizer, the institute of one progress encapsulating processing of coiling is corresponded on each magnetic pole of the journal bearing stator core (21) Journal bearing stator coil (23) is stated, the journal bearing rotor core (22) is radially spaced to be co-axially located at the radial axle Hold in stator core (21), left not between the journal bearing stator core (21), the journal bearing rotor core (22) Radial direction magnetic bearing working gas gap more than 1mm.
- 5. Axial and radial integration magnetic levitation bearing system according to claim 4, it is characterised in that：The axial magnetic bearing (30) cod stator core (31), cod rotor propulsion disc (32), cod stator coil (33) and inspection are included The shaft position sensor (34) of the shift value of the cod stator core (31) radially is surveyed, carries out the institute of encapsulating processing State cod stator coil (33) to be placed in the annular groove of the cod stator core (31), the axial axis is forwarded Sub- thrust disc (32) with the cod stator core (31) is axially spaced is coaxially disposed, the cod rotor thrust The axial magnetic bearing working gas gap no more than 2mm is formed between disk (32) and the cod stator core (31).
- 6. Axial and radial integration magnetic levitation bearing system according to claim 5, it is characterised in that：The radial direction magnetic bearing Working gas gap takes 0.5mm, and the axial magnetic bearing working gas gap takes 1.2mm.
- 7. Axial and radial integration magnetic levitation bearing system according to claim 5, it is characterised in that：The journal bearing is determined Sub- iron core (21), the journal bearing rotor core (22) are silicon steel laminations, journal bearing rotor core (22) heat Set is installed in the shaft (10)；The cod stator core (31), the cod rotor propulsion disc (32) are High magnetic permeability single solid steel, and the cod rotor propulsion disc (32) needs to be chosen according to the maximum speed of the shaft (10) High strength alloy steel, cod rotor propulsion disc (32) hot jacket is in the shaft (10).
- 8. Axial and radial integration magnetic levitation bearing system according to claim 5, it is characterised in that：4 radial direction positions Displacement sensor (24) is homogeneously disposed in the surrounding of the journal bearing rotor core (22)；4 shaft position sensors (34) It is uniformly arranged and is located at the axial axis in cod stator core (31) periphery, the probe of the shaft position sensor (34) At the ladder for holding rotor propulsion disc (32).
- 9. Axial and radial integration magnetic levitation bearing system according to claim 5, it is characterised in that：The axial displacement passes Sensor (34) is spaced 30 °~60 ° placements with the adjacent radial displacement transducer (24).
- 10. Axial and radial integration magnetic levitation bearing system according to claim 5, it is characterised in that：The auxiliary bearing (40) ball bearing (41), bearing holder (housing, cover) (42) and bearing block (43) are included, the bearing holder (housing, cover) (42) is arranged on the ball bearing (41) Interior and in the shaft (10), the bearing block (43) is arranged on the ball bearing (42) outside, the bearing block (43) Nested damp alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711331259.4A CN107989896A (en) | 2017-12-13 | 2017-12-13 | Axial and radial integration magnetic levitation bearing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711331259.4A CN107989896A (en) | 2017-12-13 | 2017-12-13 | Axial and radial integration magnetic levitation bearing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107989896A true CN107989896A (en) | 2018-05-04 |
Family
ID=62038420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711331259.4A Pending CN107989896A (en) | 2017-12-13 | 2017-12-13 | Axial and radial integration magnetic levitation bearing system |
Country Status (1)
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Cited By (8)
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| CN109551026A (en) * | 2018-11-30 | 2019-04-02 | 沈阳工业大学 | Cyclone milling machine motor-direct-drive type magnetic suspension facing cutter |
| CN110594294A (en) * | 2019-08-28 | 2019-12-20 | 中国人民解放军海军工程大学 | Magnetic suspension bearing system with detachable thrust disc |
| CN110657160A (en) * | 2019-11-19 | 2020-01-07 | 湖南新达微轴承有限公司 | Magnetic bearing |
| CN110925307A (en) * | 2019-12-05 | 2020-03-27 | 中国航发四川燃气涡轮研究院 | Auxiliary bearing system suitable for magnetic suspension bearing-rotor system |
| WO2020125084A1 (en) * | 2018-12-18 | 2020-06-25 | 南京磁谷科技有限公司 | Mounting structure for axial sensor of eletromagnetic bearing |
| WO2020228333A1 (en) * | 2019-05-13 | 2020-11-19 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, motor, compressor, and air conditioner |
| CN113544386A (en) * | 2019-04-25 | 2021-10-22 | 株式会社岛津制作所 | Vacuum pump |
| CN117588493A (en) * | 2024-01-19 | 2024-02-23 | 山东天瑞重工有限公司 | Radial-axial integrated magnetic suspension bearing and magnetic suspension motor for air compressor |
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| CN110594294A (en) * | 2019-08-28 | 2019-12-20 | 中国人民解放军海军工程大学 | Magnetic suspension bearing system with detachable thrust disc |
| CN110657160A (en) * | 2019-11-19 | 2020-01-07 | 湖南新达微轴承有限公司 | Magnetic bearing |
| CN110925307A (en) * | 2019-12-05 | 2020-03-27 | 中国航发四川燃气涡轮研究院 | Auxiliary bearing system suitable for magnetic suspension bearing-rotor system |
| CN117588493A (en) * | 2024-01-19 | 2024-02-23 | 山东天瑞重工有限公司 | Radial-axial integrated magnetic suspension bearing and magnetic suspension motor for air compressor |
| CN117588493B (en) * | 2024-01-19 | 2024-04-16 | 山东天瑞重工有限公司 | Radial-axial integrated magnetic suspension bearing and magnetic suspension motor for air compressor |
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Application publication date: 20180504 |