CN104728264A - Lorentz-force axial magnetic bearing of outer rotor - Google Patents
Lorentz-force axial magnetic bearing of outer rotor Download PDFInfo
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- CN104728264A CN104728264A CN201510146044.XA CN201510146044A CN104728264A CN 104728264 A CN104728264 A CN 104728264A CN 201510146044 A CN201510146044 A CN 201510146044A CN 104728264 A CN104728264 A CN 104728264A
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- 238000004804 winding Methods 0.000 claims abstract description 81
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 239000003292 glue Substances 0.000 claims abstract description 24
- 239000003822 epoxy resin Substances 0.000 claims abstract description 23
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 23
- 230000005389 magnetism Effects 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000521 B alloy Inorganic materials 0.000 claims description 2
- 229910000531 Co alloy Inorganic materials 0.000 claims description 2
- 239000000725 suspension Substances 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000003973 paint Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a lorentz-force axial magnetic bearing of an outer rotor. The lorentz-force axial magnetic bearing mainly comprises two parts, namely a stator system and a rotor system, wherein the stator system mainly comprises a skeleton, an upper winding, a lower winding, epoxy resin glue, magnetic-conductive seats and a stator locking nut; the rotor system mainly comprises upper magnetic steel, lower magnetic steel, a magnetic-isolated ring, a magnetic-conductive ring, a rotor locking nut and a sleeve. The lorentz-force axial magnetic bearing disclosed by the invention has the beneficial effects that the windings are directly provided with the magnetic-conductive seats with good heat-conductive performances, so that the copper loss and the rotary loss of the windings can be quickly conducted out by the magnetic-conductive seats; since a single-edge magnetic steel structure is adopted, the lorentz-force axial magnetic bearing has the advantages of simple structure, good linearity, high bandwidth, good heat conducting performance and the like, the structure reliability of the axial magnetic bearing is improved, and simultaneously the temperature rise of the magnetic bearing is reduced, so that the lorentz-force axial magnetic bearing can be used for non-contact suspension supporting such as a magnetic suspension momentum wheel and a magnetic-suspension gyroscope.
Description
Technical field
The present invention relates to a kind of non-contact external rotor Lorentz force axial magnetic bearing, particularly relate to a kind of external rotor Lorentz force axial magnetic bearing.
Background technique
Magnetic suspension bearing is divided into magnetoresistive type magnetic bearing and Lorentz force magnetic bearing, the former is by changing air gap or magnetomotive size, change the close and magnetic flux of the magnetic at magnetic pole strength place, thus control the size and Orientation of electromagnetic force, the air gap of the latter is constant, by changing winding current size and Orientation, the size and Orientation of Ampere force in control coil.For magnetoresistive type magnetic bearing, its magnetic is close to be directly proportional to control electric current, close square being directly proportional of electromagnetic force and magnetic, the electromagnetic force of magnetoresistive type magnetic bearing with control electric current and become quadratic relationship, after linearized process, its range of linearity is narrower, and control accuracy is lower.By contrast, Lorentz force magnetic bearing magnetomotive force and size of gaps constant, the magnetic namely in air gap is close constant, and Ampere force is only with current related, and linear, and therefore Lorentz force magnetic bearing has the good linearity, and control accuracy is higher.A kind of Large-torque magnetic suspension flywheel described in granted patent 201110253688.0 adopts a kind of two-freedom to deflect Lorentz force magnetic bearing, by controlling the size and Orientation of four coil currents be circumferentially evenly positioned in stator skeleton, the deflection achieving radial two degrees of freedom of flywheel controls, but does not realize axial translation suspension.Magnetically suspended gyroscope flywheel described in paper " a kind of magnetically suspended gyroscope flywheel conceptual design and Analysis on Key Technologies ", on the basis of the two-freedom deflection Lorentz force magnetic bearing described in granted patent 201110253688.0, increase by two domain coils and be used for flywheel rotor translation control.Owing to adding two circular coils in air gap, cause air gap to increase, under identical permanent-magnet magnetic kinetic potential, the magnetic in air gap is close to decline to a great extent, thus reduce the size of Ampere force and the support stiffness of Lorentz force magnetic bearing of coil current generation, add Overall Power Consumption.In addition, the size of gaps of magnetoresistive type magnetic bearing is generally 0.2 ~ 0.35mm, and the close size of the magnetic in air gap is generally 1.0 ~ 1.4T, and close square being directly proportional of suspension electromagnetic force and magnetic, its less electric current just can produce larger suspension electromagnetic force, and power consumption is lower.Because Lorentz force magnetic bearing air gap is comparatively large, be generally 4 ~ 6mm, the close size of magnetic that in air gap, permanent magnet produces is generally 0.2 ~ 0.4T, and suspension Ampere force is directly proportional to magnetic is close, namely need larger current could export certain suspending power, therefore power consumption is comparatively large, and the heat of generation is also corresponding larger.Especially when adopting Lorentz force magnetic bearing load-bearing or exporting deflecting torque, coil current is larger, the heat produced is more, and too much heat can cause Lorentz force magnetic bearing temperature sharply to raise, thus easily causes coil to solidify the generation of the accident such as glue fusing, coil insulation paint fusing short circuit.Owing to there is above-mentioned defect, in the application of Control for Magnetic Momentum Wheel and magnetically suspended gyroscope, there is the shortcoming of power consumption greatly and not easy heat radiation in existing Lorentz force magnetic bearing.
Summary of the invention
The object of this invention is to provide the external rotor Lorentz force axial magnetic bearing that a kind of structure is simple, thermal diffusivity good, the linearity is good, bandwidth is high.
The object of the invention is to be achieved through the following technical solutions:
External rotor Lorentz force axial magnetic bearing of the present invention, primarily of stator system and rotor-support-foundation system two-part composition, stator system mainly comprises: skeleton, upper winding, lower winding, epoxy resin glue, magnetic conductance seat and stator locknut;
Rotor-support-foundation system mainly comprises: upper magnetic steel, lower magnetic steel, magnetism resistent ring, magnetic guiding loop, rotor locknut and sleeve;
Upper and lower two circular grooves are had in skeleton outer wall, in the upper circular groove that upper winding and lower winding are wrapped in skeleton respectively and lower circular groove, and be solidificated on skeleton by epoxy resin glue, magnetic conductance seat is positioned at the radially inner side of skeleton, stator locknut is positioned at the upper end of skeleton, skeleton is positioned at above the radial outside of magnetic conductance seat, and be fixedly mounted on magnetic conductance seat by stator locknut, upper magnetic steel is positioned at the radial outside of winding, lower magnetic steel is positioned at the radial outside of lower winding, magnetism resistent ring is positioned between upper magnetic steel and lower magnetic steel, magnetic guiding loop is positioned at upper magnetic steel, the radial outside of lower magnetic steel and magnetism resistent ring, rotor locknut is positioned at upper magnetic steel, lower magnetic steel, below magnetism resistent ring and magnetic guiding loop, sleeve is positioned at upper magnetic steel, lower magnetic steel, magnetism resistent ring, the radial outside of magnetic guiding loop and rotor locknut, rotor locknut by with sleeve be threaded upper magnetic steel, lower magnetic steel, magnetism resistent ring and magnetic guiding loop are fixed on the radially inner side of sleeve, upper magnetic steel, lower magnetic steel and magnetism resistent ring and upper winding and lower winding leave certain gap, form air gap.
As seen from the above technical solution provided by the invention, the external rotor Lorentz force axial magnetic bearing that the embodiment of the present invention provides, owing to have employed monolateral outer ring magnetic steel structure, compared with tradition bilateral magnet steel Lorentz force axial magnetic bearing, decrease the use of inner ring steel magnet, structure is more simple, and structural reliability is higher.Compare the organization plan on skeleton winding being solidificated in nonmetallic material (poor thermal conductivity) simultaneously, winding is directly installed on stator magnetic conductance seat by this structure, more be conducive to distributing of winding heat, reduce the temperature rise of magnetic bearing, thus improve magnetic bearing reliability.Can be used as the contactless supporting of the rotary components such as space Control for Magnetic Momentum Wheel and magnetically suspended gyroscope, reduce temperature rise during magnetic bearing suspension work.
Accompanying drawing explanation
Fig. 1 is the sectional view of external rotor Lorentz force axial magnetic bearing in the embodiment of the present invention;
Fig. 2 is the sectional view of stator system in the embodiment of the present invention;
Fig. 3 is the sectional view of embodiment of the present invention rotor system;
Fig. 4 a is the sectional view of assembly after skeleton in the embodiment of the present invention, upper winding, lower winding and epoxy resin adhesive curing assembling;
Fig. 4 b is the sectional view after skeleton in the embodiment of the present invention, upper winding, lower winding and epoxy resin glue assembly solidification boring endoporus;
Fig. 5 a is the part sectional view of skeleton before assembling with upper winding, lower winding and epoxy resin adhesive curing in the embodiment of the present invention;
Fig. 5 b is the part three-dimensional structure schematic diagram of skeleton before assembling with upper winding, lower winding and epoxy resin adhesive curing in the embodiment of the present invention.
Embodiment
To be described in further detail the embodiment of the present invention below.
External rotor Lorentz force axial magnetic bearing of the present invention, its preferably embodiment be:
As shown in Figure 1, primarily of stator system and rotor-support-foundation system two-part composition, stator system mainly comprises: skeleton 1, upper winding 2A, lower winding 2B, epoxy resin glue 3, magnetic conductance seat 4 and stator locknut 5, rotor-support-foundation system mainly comprises: upper magnetic steel 6A, lower magnetic steel 6B, magnetism resistent ring 7, magnetic guiding loop 8, rotor locknut 9 and sleeve 10, upper and lower two circular grooves are had in skeleton 1 outer wall, in the upper circular groove that upper winding 2A and lower winding 2B is wrapped in skeleton 1 respectively and lower circular groove, and be solidificated on skeleton 1 by epoxy resin glue 3, magnetic conductance seat 4 is positioned at the radially inner side of skeleton 1, stator locknut 5 is positioned at the upper end of skeleton 1, skeleton 1 is positioned at above the radial outside of magnetic conductance seat 4, and be fixedly mounted on magnetic conductance seat 4 by stator locknut 5, upper magnetic steel 6A is positioned at the radial outside of winding 2A, lower magnetic steel 6B is positioned at the radial outside of lower winding 2B, magnetism resistent ring 7 is positioned between upper magnetic steel 6A and lower magnetic steel 6B, magnetic guiding loop 8 is positioned at upper magnetic steel 6A, the radial outside of lower magnetic steel 6B and magnetism resistent ring 7, rotor locknut 9 is positioned at upper magnetic steel 6A, lower magnetic steel 6B, below magnetism resistent ring 7 and magnetic guiding loop 8, sleeve 10 is positioned at upper magnetic steel 6A, lower magnetic steel 6B, magnetism resistent ring 7, the radial outside of magnetic guiding loop 8 and rotor locknut 9, rotor locknut 9 by with sleeve 10 be threaded upper magnetic steel 6A, lower magnetic steel 6B, magnetism resistent ring 7 and magnetic guiding loop 8 are fixed on the radially inner side of sleeve 10, upper magnetic steel 6A, lower magnetic steel 6B and magnetism resistent ring 7 leave certain gap with upper winding 2A and lower winding 2B, form air gap 11.
Described skeleton 1 is the polyimide material of high temperature resistance and high strength.
Described magnetic conductance seat 4 is electrical pure iron DT4C or the 1J22 bulk materials of high thermal conductivity.
Described upper magnetic steel 6A and lower magnetic steel 6B is shirt cobalt alloy or Nd Fe B alloys material.
Described magnetic guiding loop 8 is electrical pure iron DT4C or 1J22 bulk materials.
Described upper magnetic steel 6A is identical with lower magnetic steel 6B size shape, and magnetizing direction is radial magnetizing, and magnetizing direction is contrary.
Described epoxy resin glue 3 is two component water, and two kinds of glue ratios are 1:2.
Described epoxy resin glue 3 carries out under being solidificated in normal-temperature vacuum environment, is not less than 24 hours curing time.
Fig. 2 is the sectional view of stator system in the present invention, in the upper circular groove that upper winding 2A and lower winding 2B is wrapped in skeleton 1 respectively and lower circular groove, and be solidificated on skeleton 1 by epoxy resin glue 3, after skeleton 1, upper winding 2A, lower winding 2B and epoxy resin glue 3 are cured as a whole assembly, be arranged on magnetic conductance seat 4 by stator locknut 5.
Fig. 3 is the sectional view of rotor system of the present invention, magnetism resistent ring 7 is positioned at upper magnetic steel 6A lower end and lower magnetic steel 6B upper end, magnetic guiding loop 8 is positioned at the radial outside of upper magnetic steel 6A, lower magnetic steel 6B and magnetism resistent ring 7, upper magnetic steel 6A, lower magnetic steel 6B, magnetism resistent ring 7 and magnetic guiding loop 8 are positioned at the radially inner side of sleeve 10, and are fixed on the radially inner side of sleeve 10 by rotor locknut 9.
Upper winding 2A and lower winding 2B all needs to be coated with one deck insulated paint under vacuo, insulated paint thickness is 10 ~ 20 μm, be bonded at after upper winding 2A and lower winding 2B completely until insulated paint, in the upper circular groove upper winding 2A and lower winding 2B being wrapped in skeleton 1 respectively and lower circular groove, epoxy resin glue 3 is utilized to be solidificated on skeleton 1 by upper winding 2A and lower winding 2B subsequently, as shown in fig. 4 a.Wherein, epoxy resin glue 3 is two component water, and two kinds of glue ratios are 1:2, and it carries out under being solidificated in normal-temperature vacuum environment, is not less than 24 hours curing time.After skeleton 1, upper winding 2A, lower winding 2B and epoxy resin glue 3 are cured as a whole assembly, through boring processing, by the inner wall thickness of skeleton 1 by 4 ~ 5mm boring to the 0.3 ~ 0.5mm before solidifying, as shown in Figure 4 b.
Fig. 5 a be in the present invention skeleton 1 with upper winding 2A, lower winding 2B and epoxy resin glue 3 solidify the part sectional view before assembling, Fig. 5 b be in the present invention skeleton 1 with upper winding 2A, lower winding 2B and epoxy resin glue 3 solidify the part three-dimensional structure schematic diagram before assembling, its material is the polyimide of high temperature resistance and high strength, stator locknut attachment face 1001 is installed for skeleton 1 and stator locknut 5 compression fit, upper circular groove 1002 is for the winding of upper winding 2A, lower circular groove 1003 is for the winding of lower winding 2B, at skeleton 1, upper winding 2A, after lower winding 2B and epoxy resin glue 3 are cured as a whole assembly, boring cylinder 1004 need be processed through boring, its inner wall thickness is by 4 ~ 5mm boring to the 0.3 ~ 0.5mm before solidifying, magnetic conductance seat attachment face 1005 is installed for coordinating with magnetic conductance seat 4.
External rotor Lorentz force axial magnetic bearing of the present invention, overcomes the deficiencies in the prior art, structure is simple, thermal diffusivity good, the linearity is good, bandwidth is high.
The present invention's advantage is compared with prior art:
The present invention, owing to have employed monolateral outer ring magnetic steel structure, compared with tradition bilateral magnet steel Lorentz force axial magnetic bearing, decreases the use of inner ring steel magnet, and structure is more simple, and structural reliability is higher.Compare the organization plan on skeleton winding being solidificated in nonmetallic material (poor thermal conductivity) simultaneously, winding is directly installed on stator magnetic conductance seat by this structure, more be conducive to distributing of winding heat, reduce the temperature rise of magnetic bearing, thus improve magnetic bearing reliability.
Principle of the present invention is:
Upper magnetic steel and lower magnetic steel oppositely magnetize, and are connected in closed permanent magnetic circuit, provide constant permanent magnetic field to magnetic bearing, and upper winding and the lower winding of energising produce Ampere force in permanent magnetic field, provide required suspending power, make rotor obtain contactless supporting.Permanent magnetic circuit of the present invention is: magnetic flux is from lower magnetic steel N pole, by air gap, through lower winding, arrive magnetic conductance seat lower end, flow out from magnetic conductance seat upper end, by air gap, through upper winding, arrive upper magnetic steel S pole, flow out from upper magnetic steel N pole, get back to lower magnetic steel S pole through magnetic guiding loop, form the permanent magnetic circuit of Lorentz force magnetic bearing, as shown in Figure 1.When simultaneously to upper winding load clockwise electric current (from+Z-direction past-Z-direction overlooks) and to lower winding load counter clockwise current flow (from+Z-direction past-Z-direction overlooks) time, upper winding and lower winding all produce the Ampere force of edge+Z-direction.When simultaneously to upper winding load counter clockwise current flow (from+Z-direction past-Z-direction overlooks) and to lower winding load clockwise electric current (from+Z-direction past-Z-direction overlooks) time, upper winding and lower winding all produce the Ampere force of edge-Z-direction.By changing the size and Orientation of electric current in upper winding and lower winding simultaneously, control the size and Orientation of Ampere force, thus realize the contactless suspension bearing of rotor.
The content be not described in detail in specification of the present invention belongs to the known prior art of professional and technical personnel in the field.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (8)
1. an external rotor Lorentz force axial magnetic bearing, primarily of stator system and rotor-support-foundation system two-part composition, is characterized in that:
Stator system mainly comprises: skeleton (1), upper winding (2A), lower winding (2B), epoxy resin glue (3), magnetic conductance seat (4) and stator locknut (5);
Rotor-support-foundation system mainly comprises: upper magnetic steel (6A), lower magnetic steel (6B), magnetism resistent ring (7), magnetic guiding loop (8), rotor locknut (9) and sleeve (10);
Upper and lower two circular grooves are had in described skeleton (1) outer wall, in the upper circular groove that upper winding (2A) and lower winding (2B) are wrapped in skeleton (1) respectively and lower circular groove, and be solidificated on skeleton (1) by epoxy resin glue (3), magnetic conductance seat (4) is positioned at the radially inner side of skeleton (1), stator locknut (5) is positioned at the upper end of skeleton (1), skeleton (1) is positioned at above the radial outside of magnetic conductance seat (4), and be fixedly mounted on magnetic conductance seat (4) by stator locknut (5), upper magnetic steel (6A) is positioned at the radial outside of winding (2A), lower magnetic steel (6B) is positioned at the radial outside of lower winding (2B), magnetism resistent ring (7) is positioned between upper magnetic steel (6A) and lower magnetic steel (6B), magnetic guiding loop (8) is positioned at upper magnetic steel (6A), the radial outside of lower magnetic steel (6B) and magnetism resistent ring (7), rotor locknut (9) is positioned at upper magnetic steel (6A), lower magnetic steel (6B), magnetism resistent ring (7) and magnetic guiding loop (8) below, sleeve (10) is positioned at upper magnetic steel (6A), lower magnetic steel (6B), magnetism resistent ring (7), the radial outside of magnetic guiding loop (8) and rotor locknut (9), rotor locknut (9) by with sleeve (10) be threaded upper magnetic steel (6A), lower magnetic steel (6B), magnetism resistent ring (7) and magnetic guiding loop (8) are fixed on the radially inner side of sleeve (10), upper magnetic steel (6A), lower magnetic steel (6B) and magnetism resistent ring (7) leave certain gap with upper winding (2A) and lower winding (2B), form air gap (11).
2. external rotor Lorentz force axial magnetic bearing according to claim 1, is characterized in that: the polyimide material that described skeleton (1) is high temperature resistance and high strength.
3. external rotor Lorentz force axial magnetic bearing according to claim 1, is characterized in that: the electrical pure iron DT4C that described magnetic conductance seat (4) is high thermal conductivity or 1J22 bulk materials.
4. a kind of external rotor Lorentz force axial magnetic bearing according to claim 1, is characterized in that: described upper magnetic steel (6A) and lower magnetic steel (6B) are shirt cobalt alloy or Nd Fe B alloys material.
5. a kind of external rotor Lorentz force axial magnetic bearing according to claim 1, is characterized in that: described magnetic guiding loop (8) is electrical pure iron DT4C or 1J22 bulk materials.
6. a kind of external rotor Lorentz force axial magnetic bearing according to claim 1, is characterized in that: described upper magnetic steel (6A) is identical with lower magnetic steel (6B) size shape, and magnetizing direction is radial magnetizing, and magnetizing direction is contrary.
7. external rotor Lorentz force axial magnetic bearing according to claim 1, is characterized in that: described epoxy resin glue (3) is two component water, and two kinds of glue ratios are 1:2.
8. external rotor Lorentz force axial magnetic bearing according to claim 1, is characterized in that: carry out under described epoxy resin glue (3) is solidificated in normal-temperature vacuum environment, be not less than 24 hours curing time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510146044.XA CN104728264B (en) | 2015-03-30 | 2015-03-30 | Lorentz-force axial magnetic bearing of outer rotor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510146044.XA CN104728264B (en) | 2015-03-30 | 2015-03-30 | Lorentz-force axial magnetic bearing of outer rotor |
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| CN104728264A true CN104728264A (en) | 2015-06-24 |
| CN104728264B CN104728264B (en) | 2017-05-03 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838004A (en) * | 2017-04-06 | 2017-06-13 | 北京石油化工学院 | A kind of implicit Lorentz force magnetic bearing of Three Degree Of Freedom |
| CN106895075A (en) * | 2017-04-06 | 2017-06-27 | 北京石油化工学院 | A kind of implicit Lorentz force deflection magnetic bearing of D.D |
| CN106895834A (en) * | 2017-03-31 | 2017-06-27 | 上海航天控制技术研究所 | A kind of power gyro field system and its design and production method |
| CN107546904A (en) * | 2017-09-29 | 2018-01-05 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of magnetic bearing, compressor and processing method |
| CN108180219A (en) * | 2017-12-29 | 2018-06-19 | 北京石油化工学院 | A kind of large bearing capacity high dynamic response axial direction Lorentz force magnetic bearing |
| CN108194505A (en) * | 2017-12-29 | 2018-06-22 | 北京石油化工学院 | A kind of implicit high-damping Lorentz force radial direction magnetic bearing |
| CN108875278A (en) * | 2018-07-26 | 2018-11-23 | 北京石油化工学院 | The design method of Lorentz force deflection magnetic bearing |
| CN109139693A (en) * | 2018-10-23 | 2019-01-04 | 珠海格力电器股份有限公司 | Hybrid magnetic suspension thrust bearing |
| CN114146669A (en) * | 2021-12-24 | 2022-03-08 | 江苏中信国安新材料有限公司 | Rubber mixing and dissolving system and process in polystyrene production |
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| CN101886669A (en) * | 2010-07-09 | 2010-11-17 | 北京奇峰聚能科技有限公司 | Permanent-magnetic bias outer rotor radial magnetic bearing |
| CN204553558U (en) * | 2015-03-30 | 2015-08-12 | 北京石油化工学院 | A kind of external rotor Lorentz force axial magnetic bearing |
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| JP2000078796A (en) * | 1998-08-28 | 2000-03-14 | Namiki Precision Jewel Co Ltd | Small-sized motor |
| JP2002303257A (en) * | 2001-04-06 | 2002-10-18 | Hiromasa Higasa | Flywheel energy storing device and design method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895834A (en) * | 2017-03-31 | 2017-06-27 | 上海航天控制技术研究所 | A kind of power gyro field system and its design and production method |
| CN106838004B (en) * | 2017-04-06 | 2018-11-02 | 北京石油化工学院 | A kind of implicit Lorentz force magnetic bearing of Three Degree Of Freedom |
| CN106895075A (en) * | 2017-04-06 | 2017-06-27 | 北京石油化工学院 | A kind of implicit Lorentz force deflection magnetic bearing of D.D |
| CN106838004A (en) * | 2017-04-06 | 2017-06-13 | 北京石油化工学院 | A kind of implicit Lorentz force magnetic bearing of Three Degree Of Freedom |
| CN106895075B (en) * | 2017-04-06 | 2018-12-18 | 北京石油化工学院 | A kind of implicit Lorentz force deflection magnetic bearing of double deflection |
| CN107546904A (en) * | 2017-09-29 | 2018-01-05 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of magnetic bearing, compressor and processing method |
| 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 |
| CN108194505A (en) * | 2017-12-29 | 2018-06-22 | 北京石油化工学院 | A kind of implicit high-damping Lorentz force radial direction magnetic bearing |
| CN108180219A (en) * | 2017-12-29 | 2018-06-19 | 北京石油化工学院 | A kind of large bearing capacity high dynamic response axial direction Lorentz force magnetic bearing |
| CN108875278A (en) * | 2018-07-26 | 2018-11-23 | 北京石油化工学院 | The design method of Lorentz force deflection magnetic bearing |
| CN108875278B (en) * | 2018-07-26 | 2022-06-17 | 北京石油化工学院 | Lorentz force deflection magnetic bearing design method |
| CN109139693A (en) * | 2018-10-23 | 2019-01-04 | 珠海格力电器股份有限公司 | Hybrid magnetic suspension thrust bearing |
| CN114146669A (en) * | 2021-12-24 | 2022-03-08 | 江苏中信国安新材料有限公司 | Rubber mixing and dissolving system and process in polystyrene production |
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| CN104728264B (en) | 2017-05-03 |
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