CN209638239U - Axial bearing and radial bearing combined structure, permanent magnet electric magnetic suspension bearing using same and centrifugal water chilling unit - Google Patents
Axial bearing and radial bearing combined structure, permanent magnet electric magnetic suspension bearing using same and centrifugal water chilling unit Download PDFInfo
- Publication number
- CN209638239U CN209638239U CN201821930120.1U CN201821930120U CN209638239U CN 209638239 U CN209638239 U CN 209638239U CN 201821930120 U CN201821930120 U CN 201821930120U CN 209638239 U CN209638239 U CN 209638239U
- Authority
- CN
- China
- Prior art keywords
- bearing
- axial
- rotor
- stator
- transverse
- 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
- 239000000725 suspension Substances 0.000 title abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title 1
- 230000003287 optical effect Effects 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 239000002131 composite material Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims 1
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 239000004917 carbon fiber Substances 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 claims 1
- 239000002990 reinforced plastic Substances 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007935 neutral effect Effects 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 239000003831 antifriction material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model discloses a novel electronic magnetic suspension bearing structure of permanent magnetism, including optical axis, electric motor rotor, axial protection and axial bearing and journal bearing's integrated configuration, axial bearing with journal bearing makes up, sets up in pairs in same bearing housing, axial bearing stator with the journal bearing stator is fixed with bearing housing, the axial bearing rotor with the journal bearing rotor is fixed with the optical axis, and the axial bearing stator is connected with axial protection fastening, uses the electronic magnetic suspension principle in the magnetic suspension bearing technique, and the skew returns neutral good, need not detect and control element, does not need extra power supply to make this kind of magnetic suspension bearing promote the reliability, reduced manufacturing cost and use cost.
Description
Technical field
The utility model relates to electromagnetic induction device field more particularly to a kind of permanent-magnet electric magnetic bearing structures.
Background technique
Existing rotor system of magnetic suspension bearing is using electromagnetic suspension technology (Electromagnetic
Suspension, EMS),
Existing rotor system of magnetic suspension bearing has the following disadvantages:
1. bearing shows as negative stiffness in suspension region, i.e., for rotor further away from equilbrium position, suspending power is smaller, Hui Zhongneng
Power is poorer, easier unstability；
2. need expensive displacement sensor, current sensor, controller, power amplifier controls software and various
Shielded cable etc. causes entire bearing rotor system price higher；
3. needing continued power, additional energy source is consumed.
Chinese patent CN201010254903.4, " permanent-magnet electric suspension bearing ", inventor Liu Xinguang disclose a kind of electricity
Dynamic suspension theory bearing, is made of inner sleeve and housing, the inner sleeve, put on outside be respectively set conical ring permanent magnet internal magnetic ring,
Outer magnetic ring, internal magnetic ring are identical with outer magnetic ring taper；Several conductor rings, week of the conductor ring along outer magnetic ring are embedded on outer magnetic ring
To uniformly；The internal magnetic ring is fixed on magnetic conductive axis and puts on the composition inner sleeve；The outer magnetic ring is fixed on magnetic conduction cylinder and magnetic conduction
The housing is formed on disk；The housing and the concentric compartment unoccupied place of the inner sleeve cover outside the inner sleeve, outer magnetic ring with it is interior
Magnet ring septal space is opposite with magnetic polarity.In use, inner sleeve covers on the axis to be supported.Inner sleeve is with housing because magnetic repulsion is opposite outstanding
It is floating, also, when the permanent-magnet electric suspension bearing is by outer force-disturbance, inner sleeve and outer interplanting relative to deviating movement, conductor ring because
Magnetic flux in it changes and generates induced current, is known by Lenz's law, and the magnetic field of induced current will resist offset movement,
I.e. conductor ring, which will generate, resists the mobile electric power of offset, make inner sleeve and housing set back this bearing cannot achieve it is radial with
The decoupling of axial suspension power is not easy to realize stable suspersion, and its inductor is the circumferential conductor coils uniformly embedded, manufacturing process
Complexity, it is at high cost.
But this structure arrangement often brings obstacle to the volume ratio for pursuing breaker and influences integration, module
The realization of change；In addition, the electromagnetic field generated in the case of heat and high current that breaker generates in the process of running may shadow
Ring the tripping function of breaker；In addition, due to need two components are assembled respectively, will increase the cumbersome of assembling work and
Influence the raising of assembly efficiency.
Utility model content
In order to integrate split type magnetic bearing structure in the prior art, the utility model provides following technical solution:
A kind of composite structure of axial bearing and transverse bearing, axial bearing are combined with the transverse bearing, are arranged in pairs in same
In bear box, the axial bearing includes axial bearing stator and axial bearing rotor, setting in the axial bearing rotor
Magnet steel, the axial bearing stator are fixed on bear box, and the axial bearing rotor is fixed with optical axis, in the utility model
Axial bearing used in pairs with transverse bearing.
Further, the magnet steel in axial bearing rotor is arranged along axial in Halbach array, the axial bearing rotor
Strong magnetic direction towards axial bearing stator.
Further, transverse bearing includes transverse bearing stator and transverse bearing rotor, and magnetic is arranged in transverse bearing stator
Steel, transverse bearing stator are fixed on bear box, and transverse bearing rotor is fixed with optical axis.
Further, magnet steel in transverse bearing stator is arranged along axial in Halbach array, transverse bearing stator it is strong
Magnetic direction is towards rotor.
Further, axial bearing rotor and transverse bearing stator are using conductivity height and non-magnetic high-strength material.
Further, axial bearing rotor and transverse bearing stator use aluminium alloy.
Further, composite structure is equipped with dead ring, and the axial bearing rotor is separately positioned on transverse bearing rotor
Dead ring two sides.
The invention also discloses a kind of electrically driven, magnetically levitated bearing arrangements of novel permanent magnetic, including a kind of axial bearing and diameter
It further include axial protection to the composite structure of bearing, optical axis, rotor；Axial bearing stator and the transverse bearing stator
It is fixed with bear box, axial bearing rotor and the transverse bearing rotor are fixed with optical axis, axial bearing stator and axial guarantor
Shield is fastenedly connected.
Further, axial bearing includes axial bearing stator and axial bearing rotor, and magnetic is arranged in axial bearing rotor
Steel, axial bearing stator are fixed on bear box, and axial bearing rotor is fixed with optical axis.
Further, the magnet steel in axial bearing rotor is arranged along axial in Halbach array, the axial bearing rotor
Strong magnetic direction towards axial bearing stator.
Further, transverse bearing includes transverse bearing stator and transverse bearing rotor, and magnetic is arranged in transverse bearing stator
Steel, transverse bearing stator are fixed on bear box, and transverse bearing rotor is fixed with optical axis.
Further, magnet steel in transverse bearing stator is arranged along axial in Halbach array, transverse bearing stator it is strong
Magnetic direction is towards rotor.
Further, axial bearing rotor and transverse bearing stator use high by conductivity and non-magnetic high-intensitive material
Material.
Further, axial bearing rotor and transverse bearing stator use aluminium alloy.
Further, composite structure is equipped with dead ring, and axial bearing rotor and transverse bearing rotor are separately positioned on insulation
Ring two sides.
Further, axial bearing stator is set side by side with axial bearing rotor, and axial bearing stator and axial axis are forwarded
There are gaps between son.
Further, transverse bearing stator sleeve is in the transverse bearing rotor exterior, transverse bearing stator and transverse bearing
There are gaps between rotor.
Further, there are two axial protection is set, first axis protection and the second axial protection, first axis protect (2)
Set on the inside of axial bearing stator, first axis protection is less than transverse bearing stator and radial axle with the unilateral gap of optical axis
0.1~0.2 millimeter of unilateral gap for forwarding son.
Further, the second axial protection (5) is set to the inside of axial bearing stator, and axial bearing stator is close to axial axis
The outer ring edge for forwarding sub- side is equipped with the second axial protection (5), the prominent axial bearing of axial end face of the second axial protection (5)
0.1~0.2 millimeter of stator rim.
Further, the unilateral gap between the inner ring and optical axis of first axis protection is more than or equal to 0.5 millimeter.
Further, the gap between the second axial protection and axial bearing rotor is more than or equal to 0.5 millimeter.
Further, axial magnetic steel lantern ring is cased in axial bearing rotor circumferential direction.
Further, axial magnetic steel lantern ring is carbon fibre reinforced plastic material.
Further, dead ring is carbon fibre reinforced plastic material.
Further, axial protection is graphite material.
Further, a kind of centrifugal refrigerating machines, using the above-mentioned electrically driven, magnetically levitated bearing arrangement of novel permanent magnetic.
The beneficial effects of the utility model are as follows:
The utility model designs a kind of permanent-magnet suspension bearing rotor structure of electric principle, by electrically driven, magnetically levitated principle application
In magnetic suspension bearing technology, it is neutral good to deviate back, does not need to detect and control element, does not need additionally to power.To make this
Kind magnetic suspension bearing improves reliability, reduces production cost and use cost.
It is axially and radially all made of the bearing of EDS bearing in this structure, and the function of the two is integrated, promotion finishes
The compactedness of structure and the convenience of engineer application.This structure has protection bearing arrangement, has electrodynamics suspension structure better
It is engineered application possibility.
Detailed description of the invention
Fig. 1 is a kind of electric suspension bearing structure sectional view of the utility model embodiment；
Fig. 2 is a kind of electric suspension bearing Structure explosion diagram of the utility model embodiment；
Fig. 3 is a kind of electric suspension bearing axial bearing arrangement figure of the utility model embodiment；
Fig. 4 is a kind of electric suspension bearing transverse bearing structure chart of the utility model embodiment.
Fig. 5 is a kind of electric suspension bearing axial bearing sectional view of the utility model embodiment.
Figure label: 1-optical axis；The protection of 2-first axis；3-bear boxes；4-axial bearing stators；5-the second
Axial protection；6-axial magnetic steel lantern rings；7-axial bearing rotors；8-dead rings；9-transverse bearing rotors；10-radial axles
Hold stator；11-rotors.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
In attached drawing afterwards do not need that it is further discussed.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality are not
Indicate and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, therefore not
It can be interpreted as limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of utility model protection range.
Referring to Figure 1 with 2, a kind of electric magnetic bearing structure includes that optical axis 1, first axis protect 2, bearing
Shell 3, the axial protection of axial bearing stator 4, second 5, axial magnetic steel lantern ring 6, axial bearing rotor 7, dead ring 8, radial axle
Forward sub 9, transverse bearing stator 10, rotor 11.
Wherein, axial bearing stator 4 and transverse bearing rotor 9 are known as inductor, higher by aluminium alloy or other conductivities,
But non-magnetic and high-intensitive material is made；Second axial direction protection 5 is by thrust bearing or graphite or other antifriction material systems
At；Axial magnetic steel lantern ring 6 is by carbon fibre reinforced plastic (CFRP) or other high-intensitive non-magnetic while non electrically conductive material systems
At；Axial bearing rotor 7 and transverse bearing stator 10 are arranged as several magnet steel by the mode as shown in Fig. 5 and Fig. 4, are magnetized
Direction also as shown in Fig. 5 and Fig. 4, constitutes Halbach array, and wherein the strong magnetic direction of axial bearing rotor 7 is to face axial axis
Stator 3 is held, the strong magnetic direction of transverse bearing stator 10 is to face radial rotor；Dead ring 8 is by carbon fibre reinforced plastic (CFRP)
Or other high intensity are non-magnetic while non electrically conductive material is made.
Assembly relation is as follows:
Referring to Figure 1, bear box 3 is fastenedly connected with body fuselage (not shown), can using elastic conjunction or
Person is fixed with connector.
Axial bearing stator 4, transverse bearing stator 10 and bear box 3 are fastenedly connected；
First axis protection 2 is fastenedly connected with axial bearing stator 4, and after the assembly is completed, the list of inner ring and optical axis 1
Side gap is less than 0.1~0.2mm of unilateral gap of transverse bearing stator 10 Yu transverse bearing rotor 9, to prevent transverse bearing
Stator 10 is directly contacted with transverse bearing rotor 9.In addition to this, after the assembly is completed between first axis protection 2 and optical axis 1
Gap need 0.5mm or more, with guarantee have enough Serpentine Gallery Pavilions；
Fig. 3 is referred to, the second axial protection 5 is fastenedly connected with axial bearing stator 4, and after the assembly is completed, axial end
Face height is 0.1~0.2mm higher than axial bearing stator, to prevent axial bearing stator 4 and axial bearing rotor 7 from directly contacting.
In addition to this, the second axial protection 5 and axial bearing rotor 7 need 0.5mm or more in gap after the assembly is completed, to guarantee having foot
Enough Serpentine Gallery Pavilions；
Axial magnetic steel lantern ring 6 is fastenedly connected with axial bearing stator 4, prevents magnet steel from deviating from when rotating at high speed；
Axial bearing rotor 7 is fastenedly connected with optical axis 1；
It is close to respectively with axial bearing rotor 7, transverse bearing rotor 98 two sides of dead ring；
Transverse bearing rotor 9 is fastenedly connected with optical axis 1.
Except optical axis 1 and rotor 11, other all parts have collectively constituted this electrodynamics suspension bearing assembly, this assembly exists
In use, at least needing two to be arranged symmetrically.
Above-described embodiment is the preferred embodiment of the utility model, and the utility model can also have other embodiments, ability
The technical staff in domain can also make equivalent deformation or replacement without departing from the spirit of the present invention, these equivalent changes
Type or replacement are all contained in range set by the claim of this application.
Claims (26)
1. the composite structure of a kind of axial bearing and transverse bearing, it is characterised in that: the axial bearing and the transverse bearing
Combination, is arranged in pairs in the same bear box,
The axial bearing includes axial bearing stator and axial bearing rotor, and magnet steel, institute is arranged in the axial bearing rotor
It states axial bearing stator to be fixed on bear box, the axial bearing rotor is fixed with optical axis.
2. the composite structure of axial bearing according to claim 1 and transverse bearing, it is characterised in that: the axial bearing
Magnet steel in rotor is arranged along axial in Halbach array, and the strong magnetic direction of the axial bearing rotor is towards axial bearing stator.
3. the composite structure of axial bearing according to claim 1 and transverse bearing, it is characterised in that: the transverse bearing
Including transverse bearing stator and transverse bearing rotor, magnet steel is set, the transverse bearing stator is solid in the transverse bearing stator
It is scheduled on bear box, the transverse bearing rotor is fixed with optical axis.
4. the composite structure of axial bearing according to claim 3 and transverse bearing, it is characterised in that: the transverse bearing
Magnet steel in stator is arranged along axial in Halbach array, and the strong magnetic direction of the transverse bearing stator is towards rotor.
5. the composite structure of axial bearing according to claim 3 and transverse bearing, it is characterised in that: the axial bearing
Rotor and transverse bearing stator use the high and non-magnetic high-strength material by conductivity.
6. the composite structure of axial bearing according to claim 5 and transverse bearing, it is characterised in that: the axial bearing
Rotor and transverse bearing stator are aluminum alloy material.
7. the composite structure of axial bearing according to claim 1 or 3 and transverse bearing, it is characterised in that: the combination
Structure is equipped with dead ring, and the axial bearing rotor and transverse bearing rotor are separately positioned on dead ring two sides.
8. a kind of permanent-magnet electric magnetic bearing structure, including axial bearing described in claim 3-6 any one and radial direction
The composite structure of bearing, optical axis, rotor, it is characterised in that: further include axial protection；The axial bearing stator and described
Transverse bearing stator is fixed with bear box, and the axial bearing rotor and the transverse bearing rotor are fixed with optical axis, described
Axial bearing stator is fastenedly connected with axial protection.
9. permanent-magnet electric magnetic bearing structure according to claim 8, it is characterised in that: the axial bearing includes axis
To bearing stator and axial bearing rotor, magnet steel is set, the axial bearing stator is fixed on axis in the axial bearing rotor
It holds on shell, the axial bearing rotor is fixed with optical axis.
10. permanent-magnet electric magnetic bearing structure according to claim 9, it is characterised in that: the axial bearing rotor
Interior magnet steel is arranged along axial in Halbach array, and the strong magnetic direction of the axial bearing rotor is towards axial bearing stator.
11. permanent-magnet electric magnetic bearing structure according to claim 8, it is characterised in that: the transverse bearing includes
Transverse bearing stator and transverse bearing rotor, the transverse bearing stator is interior to be arranged magnet steel, and the transverse bearing stator is fixed on
On bear box, the transverse bearing rotor is fixed with optical axis.
12. permanent-magnet electric magnetic bearing structure according to claim 11, it is characterised in that: the transverse bearing stator
Interior magnet steel is arranged along axial in Halbach array, and the strong magnetic direction of the transverse bearing stator is towards rotor.
13. the permanent-magnet electric magnetic bearing structure according to claim 9 or 11, it is characterised in that: the axial bearing
Rotor and transverse bearing stator use the high and non-magnetic high-strength material by conductivity.
14. permanent-magnet electric magnetic bearing structure according to claim 13, it is characterised in that: the axial bearing rotor
It is aluminum alloy material with transverse bearing stator.
15. permanent-magnet electric magnetic bearing structure according to claim 8, it is characterised in that: the composite structure is equipped with
Dead ring, the axial bearing rotor and transverse bearing rotor are respectively provided at dead ring two sides.
16. permanent-magnet electric magnetic bearing structure according to claim 8, it is characterised in that: the axial bearing stator
It is set side by side with axial bearing rotor, there are gaps between the axial bearing stator and axial bearing rotor.
17. permanent-magnet electric magnetic bearing structure according to claim 8, it is characterised in that: the transverse bearing stator
Cover between the transverse bearing rotor exterior, the transverse bearing stator and transverse bearing rotor that there are gaps.
18. permanent-magnet electric magnetic bearing structure according to claim 8, it is characterised in that: the axial protection is equipped with
Two, first axis protection and the second axial protection, first axis protection are set to the inside of axial bearing stator, the first axle
It is less than 0.1~0.2 milli of unilateral gap of the transverse bearing stator and transverse bearing rotor to the unilateral gap of protection and optical axis
Rice.
19. permanent-magnet electric magnetic bearing structure according to claim 18, it is characterised in that: the described second axial protection
Set on the inside of axial bearing stator, the axial bearing stator is equipped with close to the outer ring edge of axial bearing rotor side
Second axial protection, the second prominent 0.1~0.2 millimeter of axial bearing stator rim of axial end face axially protected.
20. permanent-magnet electric magnetic bearing structure according to claim 18, it is characterised in that: the first axis protection
Inner ring and optical axis between unilateral gap be more than or equal to 0.5 millimeter.
21. permanent-magnet electric magnetic bearing structure according to claim 18, it is characterised in that: the described second axial protection
Gap between axial bearing rotor is more than or equal to 0.5 millimeter.
22. permanent-magnet electric magnetic bearing structure according to claim 8, it is characterised in that: the axial bearing rotor
Axial magnetic steel lantern ring is cased in circumferential direction.
23. permanent-magnet electric magnetic bearing structure according to claim 22, it is characterised in that: the axial magnetic steel lantern ring
For carbon fibre reinforced plastic material.
24. permanent-magnet electric magnetic bearing structure according to claim 15, it is characterised in that: the dead ring is carbon fiber
Tie up reinforced plastics material.
25. permanent-magnet electric magnetic bearing structure according to claim 8, it is characterised in that: the axial protection is stone
Black material.
26. a kind of centrifugal refrigerating machines, which is characterized in that using the Permanent Magnet and Electric as described in claim 8-25 any one
Dynamic magnetic bearing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821930120.1U CN209638239U (en) | 2018-11-21 | 2018-11-21 | Axial bearing and radial bearing combined structure, permanent magnet electric magnetic suspension bearing using same and centrifugal water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821930120.1U CN209638239U (en) | 2018-11-21 | 2018-11-21 | Axial bearing and radial bearing combined structure, permanent magnet electric magnetic suspension bearing using same and centrifugal water chilling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209638239U true CN209638239U (en) | 2019-11-15 |
Family
ID=68473420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821930120.1U Active CN209638239U (en) | 2018-11-21 | 2018-11-21 | Axial bearing and radial bearing combined structure, permanent magnet electric magnetic suspension bearing using same and centrifugal water chilling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209638239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340258A (en) * | 2018-11-21 | 2019-02-15 | 珠海格力电器股份有限公司 | Novel permanent magnet electric magnetic suspension bearing structure |
-
2018
- 2018-11-21 CN CN201821930120.1U patent/CN209638239U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340258A (en) * | 2018-11-21 | 2019-02-15 | 珠海格力电器股份有限公司 | Novel permanent magnet electric magnetic suspension bearing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8847451B2 (en) | Combination radial/axial electromagnetic actuator with an improved axial frequency response | |
| CN1687606A (en) | Passive type axial magnetic suspension bearing of possessing damping action | |
| Pei et al. | Review of bearingless synchronous motors: Principle and topology | |
| CN204419855U (en) | The pure electromagnetism magnetic bearing of a kind of spherical radial direction of external rotor | |
| CN102042327A (en) | Low-power consumption large-bearing capacity permanent-magnet bias mixed radial magnetic bearing | |
| CN104265761A (en) | Novel axial-radial three-degree-of-freedom hybrid magnetic bearing | |
| CN106958589B (en) | Halbach permanent magnetism passive type axial magnetic suspension bearings with damping action | |
| CN207368860U (en) | A kind of hybrid permanent magnet type shaft coupling | |
| CN102943811A (en) | Industrial application type radial permanent magnet suspension bearing | |
| CN102072249A (en) | Large-bearing-capacity radial magnetic bearing | |
| CN107289003A (en) | Homopolarity formula permanent magnet offset radial magnetic bearing | |
| CN209638239U (en) | Axial bearing and radial bearing combined structure, permanent magnet electric magnetic suspension bearing using same and centrifugal water chilling unit | |
| CN203362830U (en) | Axial single-direction thrust permanent magnetic bearing | |
| CN109340258A (en) | Novel permanent magnet electric magnetic suspension bearing structure | |
| CN101709746A (en) | Five-freedom-degree permanent-magnet suspension bearing rotor system | |
| CN103591139B (en) | Passive radial permanent magnet bearing for high-speed rotor | |
| CN208380885U (en) | A kind of integral shaft is to the synchronous canned motor pump of suspension permanent magnet | |
| CN101571162A (en) | Non-equilibrium magnetic bearing | |
| CN101608670B (en) | Mixed magnetic bearing with vertical-coil uniform radial pole and low-loss outer rotor | |
| CN104508953A (en) | Actuator comprising two magnetic bearing motors | |
| CN104565066A (en) | Spherical radial pure-electromagnetism magnetic bearing of outer rotor | |
| CN213870769U (en) | Novel electromagnetic bearing | |
| CN109139693A (en) | Hybrid magnetic suspension thrust bearing | |
| CN201286041Y (en) | Servo motor | |
| CN105275991A (en) | Novel self-stabilization passive magnetic bearing for generator of power grid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |