CN105299046B - Axial magnetic suspension bearing centring means, axial magnetic suspension bearing and assembly method - Google Patents
Axial magnetic suspension bearing centring means, axial magnetic suspension bearing and assembly method Download PDFInfo
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- CN105299046B CN105299046B CN201510816047.XA CN201510816047A CN105299046B CN 105299046 B CN105299046 B CN 105299046B CN 201510816047 A CN201510816047 A CN 201510816047A CN 105299046 B CN105299046 B CN 105299046B
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Abstract
The present invention relates to a kind of axial magnetic suspension bearing centring means, axial magnetic suspension bearing and assembly method, axial magnetic suspension bearing centring means includes magnetic pole case and the axial iron core (8) being arranged in the magnetic pole case, in addition to：Axial iron core locating ring (6), the radial direction periphery of the axial iron core locating ring (6) is acted against on the radially inner face of the magnetic pole case, the radially inner face of the axial iron core locating ring (6) is acted against on the radially-outer surface of the axial iron core (8), to realize the radial positioning of the axial iron core (8).The present invention adds axial iron core locating ring in axial magnetic suspension bearing structure, the assembling axiality of axial iron core and thrust disc is ensured by the elastic conjunction between axial iron core and axial iron core locating ring and magnetic pole case, and then diametral interference power of the axial magnetic suspension bearing at equilbrium position is eliminated, realize the radial positioning to axial iron core.
Description
Technical field
The present invention relates to bearing arrangement technology, more particularly to a kind of axial magnetic suspension bearing centring means, axial magnetcisuspension
Floating axle is held and assembly method.
Background technology
Magnetic suspension bearing is also referred to as magnetic bearing, is a kind of high-performance bearing, and it is hanged rotor stability using controllable electric magnetic field
Float on previously given position.Because rotor and stator are not present Mechanical Contact, thus magnetic suspension bearing have without mechanical wear,
Non-lubricating advantage, it is widely used in various high speeds, vacuum and ultra-clean environment.
As shown in figure 1, it is a kind of existing principle schematic of permanent-magnetic biased axial magnetic bearing.The cod is main
Stable suspension axial force is provided for rotor, i.e. magnetic pole a16, a18 produces the axial tension of positive and negative direction to thrust disc a12, made
Rotor operates in equilbrium position, so as to the effect for stablizing rotor.But in the technical scheme, magnet steel a20 and thrust disc a12
Between gap a21 at can have an impact the radial load of rotor balancing, ideally, if rotor operation is in equilbrium position
On, it is 0 that what the radial load was acted on rotor, which makes a concerted effort, and the axiality assembly precision for working as magnet steel a20 and thrust disc a12 is bad, then
The radial load can form lasting perturbed force when rotor operation is in equilbrium position, and bring and inspire rotor frequency device generation admittedly
The risk of resonance.
As shown in Fig. 2 for a kind of existing structural representation of idle call Axial Magnetic Bearing, its output principle and Fig. 1
Unanimously.The Axial Magnetic Bearing includes front axle to iron core b2, rear axial iron core b3, magnet steel b4, axial iron core b5, coil b7, axle
B6 and thrust disc b1.The upper and lower surface and axial iron core of its axial iron core b5 inner circle and the axiality of rotor outer circle by magnet steel b4
B5 is cylindrical, rear axial iron core b3 inner circles cooperatively form.Because magnet steel b4 needs to be assemblied in axial iron core b5 and rear axial iron core b3
Centre, certain gap can be reserved during assembling, so will result in after axial component assembles, axial iron core b5 exists eccentric existing
As, produce diametral interference power, and and then exist excite rotor admittedly frequency resonance risk.Meanwhile when being positioned by magnet steel b4, magnet steel
B4 strong magnetic can interference measuring apparatus, will be unable to the same of axial iron core b3 periphery and axial iron core b5 inner headed face after measurement
Axle degree, and then can not repair axiality again.
The content of the invention
The purpose of the present invention is to propose to a kind of axial magnetic suspension bearing centring means, axial magnetic suspension bearing and assembling side
Method, the diametral interference that axial magnetic suspension bearing introduces when rotor is in equilbrium position operation by assembling bias can be eliminated
Power.
To achieve the above object, the invention provides a kind of axial magnetic suspension bearing centring means, including magnetic pole case
With the axial iron core being arranged in the magnetic pole case, wherein also including：Axial iron core locating ring, the axial iron core locating ring
Radial direction periphery act against on the radially inner face of the magnetic pole case, the radially inner face of axial iron core locating ring top
On the radially-outer surface for leaning against the axial iron core, to realize the radial positioning of the axial iron core.
Further, the magnetic pole case includes front axle to iron core and rear axial iron core, the front axle to iron core with it is described
Axial iron core is interlocked afterwards, forms the receiving space that can accommodate the axial iron core and the axial iron core locating ring, described
The radial direction periphery of axial iron core locating ring acts against the front axle to the radially inner face of iron core or the rear axial iron core
Radially inner face.
Further, the side axial end of the axial iron core locating ring acts against an inner side of the magnetic pole case
On wall, the axial iron core acts against the opposite side axial direction of the axial iron core locating ring by the boss set on excircle
On end face, to realize the axially position of the axial iron core.
Further, the boss is arranged on excircle of the axial iron core close to the axial iron core locating ring side
On, the radial circumference face of the boss acts against the axial iron core locating ring as the radially-outer surface of the axial iron core
On radially inner face, the step surface between the outer circumference surface of the boss and the axial iron core leans the axial iron core positioning
The opposite side axial end of ring.
Further, in addition to magnet steel retainer and multiple magnet steel, the magnet steel retainer are arranged on the axial iron core
In gap between the magnetic pole case, circumferencial direction of the multiple magnet steel along the magnet steel retainer is embedded in the magnetic
In steel retainer.
Further, the axial iron core locating ring is made of non-magnet material.
To achieve the above object, present invention also offers a kind of axial magnetic suspension bearing, including coil insulation framework, winding
Control coil and thrust disc on the coil insulation framework, filled wherein also including foregoing axial magnetic suspension bearing with centering
Put.
To achieve the above object, present invention also offers a kind of assembly method of foregoing axial magnetic suspension bearing, wherein
Including：
Axial iron core locating ring is loaded in magnetic pole case, and the radial direction periphery of axial iron core locating ring is acted against institute
State on the radially inner face of magnetic pole case；
The axial core assembly assembled by axial iron core, control coil and coil insulation framework is loaded outside the magnetic pole
Shell, and the radially inner face of the axial iron core locating ring is acted against on the radially-outer surface of the axial iron core, to realize
The radial positioning of the axial iron core.
Further, after the radial positioning of the axial iron core is realized, in addition to load the axial iron core positioning
The radially inner face of the magnetic pole case of ring is detection benchmark, detects and verifies the axial iron core and the magnetic pole case
The step of assembling axiality in radially inner face.
Further, after the radial positioning of the axial iron core is realized, in addition to：
Using load the axial iron core locating ring the magnetic pole case radially inner face as detection benchmark, detect and school
Test the axial iron core and the assembling axiality in the radially inner face of the magnetic pole case；
Load multiple magnet steel in the circumference of magnet steel retainer, and the magnet steel retainer is loaded into the axial iron core and institute
State in the gap between magnetic pole case, to realize the positioning of the magnet steel and compression.
Further, the magnetic pole case includes front axle to iron core and rear axial iron core, determines assembling the axial iron core
During the ring of position, the axial iron core locating ring is fitted into an iron core of the front axle into iron core and rear axial iron core, completed
After the assembling of magnet steel and the magnet steel retainer, it is another into iron core and rear axial iron core to continue thrust disc and the front axle
The assembling of one iron core, the front axle is set to be interlocked to iron core and the rear axial iron core, formation can accommodate the axial iron
The receiving space of core and the axial iron core locating ring.
Based on above-mentioned technical proposal, the present invention adds axial iron core locating ring in axial magnetic suspension bearing structure, according to
Axial iron core and thrust disc are ensured by the elastic conjunction between axial iron core and axial iron core locating ring and magnetic pole case
Axiality is assembled, and then eliminates diametral interference power of the axial magnetic suspension bearing at equilbrium position, is realized to axial iron core
Radial positioning.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of existing principle schematic of permanent-magnetic biased axial magnetic bearing.
Fig. 2 is a kind of existing structural representation of idle call Axial Magnetic Bearing.
Fig. 3 is the structural representation of an embodiment of axial magnetic suspension bearing of the present invention.
Fig. 4 is the schematic flow sheet of an embodiment of the assembly method of axial magnetic suspension bearing of the present invention.
Embodiment
Below by drawings and examples, technical scheme is described in further detail.
In view of existing axial magnetic suspension bearing axial iron core inner circle and thrust disc it is cylindrical between axiality be difficult to it is full
Sufficient need of work, main reason is that the axiality needs to determine by the fit-up gap of magnet steel, and the gap adds by magnet steel
The precision of work determines, and this is limited to magnet steel machining accuracy and is difficult to further improve.Therefore, inventor is in axial magnetic suspension axle
Axial iron core locating ring is added in bearing structure, is leaned by between axial iron core and axial iron core locating ring and magnetic pole case
Relation ensures the assembling axiality of axial iron core and thrust disc, and then eliminates axial magnetic suspension bearing at equilbrium position
Diametral interference power, realize the radial positioning to axial iron core.
As shown in figure 3, the structural representation of the embodiment for axial magnetic suspension bearing of the present invention.In the present embodiment,
Axial magnetic suspension bearing includes coil insulation framework 3, the control coil 4 and thrust disc 7 being wrapped on the coil insulation framework 3
And axial magnetic suspension bearing centring means.Wherein, axial magnetic suspension bearing includes magnetic pole case and setting with centring means
Axial iron core 8 in magnetic pole case, axial magnetic suspension bearing also include axial iron core locating ring 6, the axial direction with centring means
The radial direction periphery of iron core locating ring 6 is acted against on the radially inner face of magnetic pole case, axial iron core locating ring 6 it is radially inner
Face is acted against on the radially-outer surface of axial iron core 8, and this makes it possible to the cooperation by axial iron core locating ring 6 and magnetic pole case
Face and axial iron core 8 and the collective effect of the mating surface of axial iron core locating ring 6, to realize the radial positioning of axial iron core 8,
Ensure the inner headed face of axial iron core 8 and the assembling axiality of magnetic pole case.
In addition magnetic suspension precision is generally within 5 microns, rotor equilbrium position diametral interference power essentially from dress
With error, and thrust disc 7 is rotary part, after loading magnetic suspension by after its stable suspersion, thrust disc and magnetic pole case it is same
Axle degree ensures that.Therefore after the inner headed face and the assembling axiality of magnetic pole case that ensure that axial iron core 8, it becomes possible to protect
The axiality of the inner headed face and the periphery of thrust disc 7 of axial direction iron core 8, makes axial magnetic when card axial rotor is operated in equilbrium position
The radial clearance q1 that suspension bearing introduces when working is uniform, avoids the production of the rotor diametral interference power lasting at equilbrium position
It is raw, avoid the risk that resonates, it is ensured that the even running of rotor.
In figure 3, magnetic pole case includes front axle to iron core 1 and rear axial iron core 5, front axle to iron core 1 with it is described after axially
Iron core 5 is interlocked, and forms the receiving space that can accommodate axial iron core 8 and the axial iron core locating ring 6.Rear axle in Fig. 3
There is deeper cavity volume to iron core 5, therefore axial iron core locating ring 6 can be arranged on the rear side of axial iron core 5, and make axial iron
The radial direction periphery of core locating ring 6 acts against the radially inner face of rear axial iron core 5.In another embodiment, can also make
Axial iron core locating ring 6 is arranged on front axle to the side of iron core 1, and the radial direction periphery of axial iron core locating ring 6 is acted against institute
State radially inner face of the front axle to iron core 1.
The side axial end of axial iron core locating ring 6 can be acted against in an interior sidewall surface of magnetic pole case, such as
After in Fig. 3 in the interior sidewall surface of axial iron core 5, and axial iron core 8 acts against axial iron core by the boss set on excircle
On the opposite side axial end of locating ring 6, to realize the axially position of axial iron core 8.So by axial iron core locating ring 6 with
Cooperation of the axial iron core 5 on axially and radially afterwards, and axial iron core locating ring 6 with axial iron core 8 on axially and radially
Cooperation, to realize centering axially and radially of the axial iron core 8 relative to rear axial iron core 5.Existing axial magnetic suspension axle
If each the axiality of inside and outside circle is bad when holding middle axial iron core and thrust disc work, even if the radial direction work of permanent magnet bias is held
Carry power (being produced by radial air gap q1) and the coupling amount of axially work bearing capacity (being produced by axial air-gap q2 and q3 collective effect)
, it is known that because bias still results in coupling amount unstability, the control difficulty of increase control axial rotor, or even can not start.And this
The axial magnetic suspension bearing of embodiment reduces offset as far as possible by ensuring to assemble axiality, it is possible to reduce inclined because assembling
The introduced axial direction control coupling amount of the heart, improves overall efficiency.
In the various embodiments described above of the present invention, between axial iron core locating ring 6, magnetic pole case and axial iron core 8
Interference fit or interference fits may be selected in mating surface, wherein it is usually then permanent cooperation to select using interference fit, are forbidden
It is standby to carry out secondary dismounting, and select to use interference fits, then secondary dismounting can be achieved, be easy to subsequent maintenance.
In the fit structure of axial iron core 8 and axial iron core locating ring 6, axial iron core 8 positions close to axial iron core
Boss is provided with the excircle of the side of ring 6, the radial circumference face of the boss can be as the radially-outer surface of the axial iron core 8
On the radially inner face for acting against the axial iron core locating ring 6, and boss can be between the outer circumference surface by axial iron core 8
Step surface lean the opposite side axial end of the axial iron core locating ring 6.
In the structure of axial magnetic suspension bearing centring means, it can also further increase magnet steel retainer 2 and multiple
Magnet steel 9, magnet steel retainer 2 are arranged in the gap between axial iron core 8 and the magnetic pole case, and the multiple magnet steel 9 is along institute
The circumferencial direction for stating magnet steel retainer 2 is embedded in magnet steel retainer 2.The magnet steel retainer 2 and magnet steel 9 need not be as existing skills
Play a part of the guarantee of axiality between axial iron core 8 and magnetic pole case in art, therefore when mounted can be in axial iron core 8
And row installation again after the installation of the grade of control coil 4, so as to avoid assembling axiality testing result of the magnet steel 9 to axial iron core 8
Influence.
In the selection of material, present invention introduces axial iron core locating ring 6 be preferably made of non-magnet material, avoid
Influence axial magnetic suspension bearing magnetic circuit.And magnetic pole case, thrust disc 7 and the solid soft magnetic materials of the generally use of axial iron core 8 are made,
Magnet steel retainer 2 of non-magnet material it is also preferred that be made.Magnet steel 9 can be rare earth permanent-magnetic material, and coil insulation framework 3 is using non-
Conductive material is made, and control coil 4 can be formed by enamel-covered wire coiling.
Below based on the embodiment of foregoing axial magnetic suspension bearing centring means, illustratively axial magnetic suspension bearing
Assembly method, as shown in figure 4, assembly method specifically includes：
Step 101, axial iron core locating ring 6 loaded in magnetic pole case, and make the radial direction of axial iron core locating ring 6 cylindrical
Face acts against the radially inner face of the magnetic pole case；
Step 102, by the axial core assembly assembled by axial iron core 8, control coil 4 and coil insulation framework 3 load
The magnetic pole case, and the radially inner face of the axial iron core locating ring 6 is acted against the radial direction appearance of the axial iron core 8
On face, to realize the radial positioning of the axial iron core 8.
Further, can also after step 102, including step 103, to load the axial iron core locating ring 6
The radially inner face of the magnetic pole case is detection benchmark, measures and verifies the footpath of the axial iron core 8 and the magnetic pole case
Assembling axiality to inner headed face.
After the assembling axiality detection in the axial iron core 8 Yu the radially inner face of the magnetic pole case is qualified, may be used also
To further comprise：Step 104, the multiple magnet steel 9 of circumference loading in magnet steel retainer 2, and the magnet steel retainer 2 is loaded
In gap between the axial iron core 8 and the magnetic pole case, to realize the positioning of the magnet steel 9 and compression.
In another embodiment, magnetic pole case includes front axle to iron core 1 and rear axial iron core 5, when in the assembling axle
During to iron core locating ring 6, the axial iron core locating ring 6 is fitted into one of the front axle into iron core 1 and rear axial iron core 5
Iron core, and after the assembling of the magnet steel 9 and magnet steel retainer 2 is completed, continue thrust disc 7 and the front axle to iron core
1 and rear axial iron core 5 in another iron core assembling, make the front axle to iron core 1 and it is described after axial iron core 5 be interlocked, shape
Into the receiving space that can accommodate the axial iron core 8 and the axial iron core locating ring 6.
Next, assembly method with reference to shown in Fig. 4 illustratively axial magnetic suspension bearing constructive embodiment shown in Fig. 3
Specific assembling process, it is as follows：
After first axial iron core locating ring 6 is fitted into axial iron core 5, make right side and the rear axle of axial iron core locating ring 6
Contacted to the left side in the stage casing of iron core 5, and make the radial direction periphery of axial iron core locating ring 6 and the turning of rear axial iron core 5
Inner headed face contacts, and between rear axial iron core 5 can be interference fit and transition after axial direction iron core locating ring 6 loads during practical set
Coordinate contact.
After axial iron core locating ring 6 is loaded after axial iron core 5, load by coil insulation framework 3, control coil 4, axial direction
The axial core assembly that iron core 8 forms, makes the boss radial circumference face of axial iron core 8 and the footpath of axial iron core locating ring 6 inside
Disc contacts, and the boss bottom face (i.e. step surface) of axial iron core 8 is contacted with the left side of axial iron core locating ring 6,
Can be that interference fit or interference fits contact between axial direction iron core 8 and axial iron core locating ring 6 during practical set.
Coil insulation framework 3, control coil 4, rear axial iron core 5, axial iron core locating ring 6, axial iron core 8 are assembled
Afterwards, the assembly precision of assembling assembly is measured, it is desirable to which the scene periphery of later axial iron core 5 is detection benchmark, is measured
The radially inner face of axial iron core 8 and the assembling axiality of the radial direction periphery of rear axial iron core 5, in design tolerance allowed band
It is inside as qualified, on the contrary need to carry out repair to the assembling axiality, measurement verification again.Detect qualified rear loading magnet steel 9 simultaneously
Magnet steel is positioned with magnet steel retainer 2, compressed.Finally loading onto the assembling assembly and front axle to iron core 1, thrust disc 7 should
Rotating machinery unit, operation debugging, it is ensured that unit operation stable suspersion performance.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among the claimed technical scheme scope of the present invention.
Claims (11)
1. a kind of axial magnetic suspension bearing centring means, including magnetic pole case and the axial iron that is arranged in the magnetic pole case
Core (8), it is characterised in that also include：Axial iron core locating ring (6), the radial direction periphery top of the axial iron core locating ring (6)
Lean against on the radially inner face of the magnetic pole case, the radially inner face of the axial iron core locating ring (6) acts against the axle
To on the radially-outer surface of iron core (8), to realize the radial positioning of the axial iron core (8).
2. axial magnetic suspension bearing centring means according to claim 1, it is characterised in that the magnetic pole case includes
Front axle is interlocked to iron core (1) and the rear axial iron core (5), formed to iron core (1) and rear axial iron core (5), the front axle
The receiving space of the axial iron core (8) and the axial iron core locating ring (6), the axial iron core locating ring can be accommodated
(6) radial direction periphery acts against the front axle to the radially inner face of iron core (1) or the radial direction of the rear axial iron core (5)
Inner headed face.
3. axial magnetic suspension bearing centring means according to claim 1, it is characterised in that the axial iron core positioning
The side axial end of ring (6) is acted against in an interior sidewall surface of the magnetic pole case, and the axial iron core (8) is by cylindrical
Step surface between the boss and the outer circumference surface of the axial iron core (8) that are set on week acts against the axial iron core locating ring
(6) on opposite side axial end, to realize the axially position of the axial iron core (8).
4. axial magnetic suspension bearing centring means according to claim 3, it is characterised in that the boss is arranged on institute
Axial iron core (8) is stated on the excircle of axial iron core locating ring (6) side, the radial circumference face conduct of the boss
The radially-outer surface of the axial iron core (8) is acted against on the radially inner face of the axial iron core locating ring (6).
5. axial magnetic suspension bearing centring means according to claim 1, it is characterised in that also including magnet steel retainer
(2) and multiple magnet steel (9), between the magnet steel retainer (2) is arranged between the axial iron core (8) and the magnetic pole case
In gap, circumferencial direction of the multiple magnet steel (9) along the magnet steel retainer (2) is embedded in the magnet steel retainer (2).
6. axial magnetic suspension bearing centring means according to claim 1, it is characterised in that the axial iron core positioning
Ring (6) is made of non-magnet material.
7. a kind of axial magnetic suspension bearing, including coil insulation framework (3), the control that is wrapped on the coil insulation framework (3)
Coil (4) processed and thrust disc (7), it is characterised in that also used including any described axial magnetic suspension bearing of claim 1~6
Centring means.
A kind of 8. assembly method of the axial magnetic suspension bearing described in claim 7, it is characterised in that including：
Axial iron core locating ring (6) is loaded in magnetic pole case, and acts against the radial direction periphery of axial iron core locating ring (6)
On the radially inner face of the magnetic pole case；
The axial core assembly that will be assembled by axial iron core (8), control coil (4) and coil insulation framework (3) loads the magnetic
Pole shell, and the radially inner face of the axial iron core locating ring (6) is acted against the radially-outer surface of the axial iron core (8)
On, to realize the radial positioning of the axial iron core (8).
9. assembly method according to claim 8, it is characterised in that realizing the radial positioning of the axial iron core (8)
Afterwards, in addition to using load the axial iron core locating ring (6) the magnetic pole case radially inner face as detection benchmark, detection
And the step of verifying the axial iron core (8) and the assembling axiality in the radially inner face of the magnetic pole case.
10. assembly method according to claim 8, it is characterised in that realizing the radial positioning of the axial iron core (8)
Afterwards, in addition to：
Using load the axial iron core locating ring (6) the magnetic pole case radially inner face as detection benchmark, detect and school
Test the axial iron core (8) and the assembling axiality in the radially inner face of the magnetic pole case；
Load multiple magnet steel (9) in the circumference of magnet steel retainer (2), and the magnet steel retainer (2) is loaded into the axial iron
In gap between core (8) and the magnetic pole case, to realize the positioning of the magnet steel (9) and compression.
11. assembly method according to claim 10, it is characterised in that the magnetic pole case includes front axle to iron core (1)
With rear axial iron core (5), when assembling axial iron core locating ring (6), the axial iron core locating ring (6) is loaded described in
An iron core of the front axle into iron core (1) and rear axial iron core (5), complete the dress of the magnet steel (9) and magnet steel retainer (2)
After matching somebody with somebody, continue the assembling of thrust disc (7) and the front axle another iron core into iron core (1) and rear axial iron core (5),
The front axle is set to be interlocked to iron core (1) and the rear axial iron core (5), formation can accommodate the axial iron core (8) and institute
State the receiving space of axial iron core locating ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816047.XA CN105299046B (en) | 2015-11-20 | 2015-11-20 | Axial magnetic suspension bearing centring means, axial magnetic suspension bearing and assembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816047.XA CN105299046B (en) | 2015-11-20 | 2015-11-20 | Axial magnetic suspension bearing centring means, axial magnetic suspension bearing and assembly method |
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| CN105299046A CN105299046A (en) | 2016-02-03 |
| CN105299046B true CN105299046B (en) | 2017-11-21 |
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| CN201510816047.XA Active CN105299046B (en) | 2015-11-20 | 2015-11-20 | Axial magnetic suspension bearing centring means, axial magnetic suspension bearing and assembly method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105570300B (en) | 2016-03-16 | 2018-01-02 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of axial magnetic suspension bearing |
| CN106369052B (en) * | 2016-10-24 | 2023-03-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing |
| CN107546904B (en) * | 2017-09-29 | 2023-11-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic bearing, compressor and processing method |
| CN108644230B (en) * | 2018-06-27 | 2023-06-30 | 珠海格力电器股份有限公司 | Hybrid axial bearing |
| CN109067047A (en) * | 2018-08-15 | 2018-12-21 | 珠海格力电器股份有限公司 | Winding bobbin, magnetic suspension, motor |
| CN109139692A (en) * | 2018-10-09 | 2019-01-04 | 珠海格力电器股份有限公司 | axial bearing, motor and air conditioner |
| CN112564398A (en) * | 2019-05-13 | 2021-03-26 | 珠海格力电器股份有限公司 | Magnetic suspension bearing, motor, compressor and air conditioner |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10501326A (en) * | 1994-06-10 | 1998-02-03 | ユナイテッド テクノロジーズ コーポレイション | DC bias axial magnetic bearing |
| JP2002161918A (en) * | 2000-11-24 | 2002-06-07 | Nsk Ltd | Magnetic bearing unit |
| CN101025198A (en) * | 2007-03-28 | 2007-08-29 | 江苏大学 | Permanent magnet bias-magnetic axial mixed magnetic bearing |
| CN101235848B (en) * | 2008-02-29 | 2010-04-07 | 南京化工职业技术学院 | Low consumption permanent magnetism biased axial radial magnetic bearing |
| JP2013050180A (en) * | 2011-08-31 | 2013-03-14 | Daikin Industries Ltd | Magnetic bearing mechanism |
| JP6069693B2 (en) * | 2012-09-05 | 2017-02-01 | 株式会社明電舎 | 3-axis active control type magnetic bearing |
| KR101552350B1 (en) * | 2014-05-02 | 2015-09-09 | 한국기계연구원 | Thrust Magnetic Bearing for Bias Compensation |
| CN205136373U (en) * | 2015-11-20 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Axial is centring means and axial magnetic suspension bearing for magnetic suspension bearing |
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Effective date of registration: 20200921 Address after: 519070 Guangdong city of Zhuhai province Rooster Hill Road No. 789 building Patentee after: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI Patentee after: GREE ELECTRIC APPLIANCE (ZHENGZHOU) Co.,Ltd. Address before: 519070 Guangdong city of Zhuhai province Rooster Hill Road No. 789 building Patentee before: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI |