CN2597738Y - Hybrid magnetic suspension bearing - Google Patents
Hybrid magnetic suspension bearing Download PDFInfo
- Publication number
- CN2597738Y CN2597738Y CNU022887563U CN02288756U CN2597738Y CN 2597738 Y CN2597738 Y CN 2597738Y CN U022887563 U CNU022887563 U CN U022887563U CN 02288756 U CN02288756 U CN 02288756U CN 2597738 Y CN2597738 Y CN 2597738Y
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- Prior art keywords
- magnetic suspension
- magnetic
- bearing
- suspension bearing
- permanent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
- F16C32/0429—Passive magnetic bearings with permanent magnets on both parts repelling each other for both radial and axial load, e.g. conical magnets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/0436—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part
- F16C32/0438—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part with a superconducting body, e.g. a body made of high temperature superconducting material such as YBaCuO
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0474—Active magnetic bearings for rotary movement
- F16C32/0487—Active magnetic bearings for rotary movement with active support of four degrees of freedom
Abstract
The utility model relates to a mixing magnetic suspension bearing which pertains to the field of machinery. The utility model is composed of three parts, i.e. a high-temperature superconductive magnetic suspension bearing, two active magnetic suspension bearings and a permanent magnetic suspension bearing. The high-temperature superconductive magnetic suspension bearing is positioned at the bottom, the axial permanent magnetic suspension bearing is arranged at the top, the inner sides of the permanent magnetic suspension bearing and the high-temperature superconductive magnetic suspension bearing are provided with two radial active magnetic suspension bearings. The radial active magnetic suspension bearings enhance the radial rigidity and damping of the high-temperature superconductive magnetic suspension bearing, overcome the sympathetic vibration produced at a critical rotating speed, reduce the vibration and further loss of machinery and ensure a quick and stable rotation of systems. The utility model can solve the problems of existing high-temperature superconductive magnetic suspension bearings, such as poor bearing capacity, low rigidity, small damping, uncertain working position, field cooling and zero field cooling and therefore having values in terms of theoretical research and actual application in the development of mixing magnetic suspension bearing technology and the application of high-temperature superconductive block material engineering.
Description
Technical field
The utility model relates to a kind of hybrid magnetic suspension bearing, belongs to mechanical field.
Background technique
Magnetic suspension bearing is that a kind of magnetic force that utilizes is suspended in rotor in the air, makes to realize not having a kind of novel high-performance bearing that machinery contacts between rotor and the stator.Magnetic suspension bearing does not have mechanical friction, can cut down the consumption of energy and noise, have to need not to lubricate, no oil pollution, the life-span is long and can be applicable to advantage such as many applied environments, thereby have general traditional bearing and supporting technology incomparable superiority.
The conventional magnetic levitation bearing has permanent magnetism, superconduction, active three kinds.According to the different modes that produces magnetic suspension force, the magnetic suspension bearing that uses permanent magnet to constitute merely is called the permanent magnetism magnetic suspension bearing, is called the super-conductive magnetic suspension bearing and produce maglev bearing by superconductor.The magnetic suspension bearing that uses the electromagnetic attraction mode to produce is called active magnetic bearing.
Advantages such as the permanent magnetism magnetic suspension bearing has simply, and reliable and valency is low, but the suspension system that is made of permanent-magnet material fully exists damping and unstable problem.Equally, the active magnetic bearing of traditional employing electromagnetic attraction mode, this must be controlled by the reponse system of quick response as a time-dependent system.By the hts magnetic levitation bearing that high temperature superconductor constitutes, itself be exactly a stable system, need not active control.But, adopt the super-conductive magnetic suspension bearing of high temperature superconductor, exist flux creep, problem such as bearing capacity is low, and rigidity is low, and the little and working position of damping is uncertain.
Summary of the invention
For overcoming the shortcoming of above-mentioned prior art, the utility model proposes the active permanent magnetic hybrid magnetic suspension bearing of a kind of vertical high-temperature superconductive, by hts magnetic levitation bearing, active magnetic bearing and permanent magnetism magnetic suspension bearing three parts constitute.Hts magnetic levitation bearing is installed in the bottom, the axial permanent magnetic magnetic suspension bearing is equipped with at the top, and the permanent magnetism magnetic suspension bearing both can provide axial magnetic suspension power, can determine axial position again, thereby it is little to solve the super-conductive magnetic suspension loading ability of bearing, uncertain and the cold and cold problem of null field in working position; Simultaneously, the utility model permanent magnetism magnetic suspension bearing and hts magnetic levitation bearing installed inside two active magnetic bearings radially, radially active magnetic bearing has improved the radial rigidity and the damping of super-conductive magnetic suspension bearing, the resonance that is produced when overcoming rotor critical speed, reduce mechanical vibration and loss, guarantee the stable rotation of system high-speed.Problems such as therefore, the utility model can solve that the existing bearing capacity of present hts magnetic levitation bearing is low, and rigidity is low, and damping is little, and working position uncertain and cold and null field are cold.
The rotor of permanent magnetism magnetic suspension bearing of the present utility model is fixed in the magnetic suspension bearing rotating shaft by interference fit, and its stator then is fixed on magnetic suspension bearing by stator liner and puts outward.The permanent magnetism magnetic suspension bearing has adopted, the permanent-magnetic clamp of following two opposite diametrical magnetization directions, and the section area of each permanent-magnetic clamp equates, utilize the iron yoke to come magnetic conduction and shielding simultaneously, the magnetic induction intensity and the magnetic pressure of air gap between the permanent-magnetic clamp have been improved greatly, make the bigger interaction force of generation between two permanent-magnetic clamps, thereby improve the bearing capacity and the rigidity of permanent magnetism magnetic suspension bearing, also solved the problem of magnetic shielding simultaneously.
Description of drawings:
Fig. 1 is a mechanical construction drawing of the present utility model: 1, connector socket; 2, tail-hood; 3, top axial sensor; 4, end cap; 5, protection bearing; 6, upper end radial transducer probe; 7, permanent magnetism magnetic suspension bearing stator; 8, permanent magnetism magnetic suspension bearing rotor; One 9, permanent magnetism magnetic suspension bearing stator lining; 10, magnetic suspension bearing overcoat; 11, upper end active magnetic bearing rotor; 12, upper end active magnetic bearing stator; 13, upper end active magnetic bearing stator liner; 14, rotating shaft; 15, motor stator; 16, rotor; 17, lower end active magnetic bearing rotor; 18, lower end active magnetic bearing stator; 19, lower end active magnetic bearing stator liner; 20, lower end radial transducer probe; 21, lower end cap; 22, supporting disk; 23, coupling; 24, support cylinder; 25, hts magnetic levitation bearing rotor--flywheel; 26, super-conductive magnetic suspension bearing stator [superconduction block material yttrium barium copper oxide (YBCO)]; 27, liquid nitrogen; 28, liquid nitrogen container; 29, pedestal; 30, regulate bolt.
Fig. 2 is the section of structure of permanent magnetism magnetic suspension bearing of the present utility model: 7, permanent magnetism magnetic suspension bearing stator; 8, permanent magnetism magnetic suspension bearing rotor; 31, permanent-magnetic clamp; 32, permanent-magnetic clamp; 33, iron yoke.
Fig. 3 is the single-degree-of-freedom structured flowchart of active magnetic bearing of the present utility model.
Fig. 4 is a hts magnetic levitation bearing rotor of the present utility model--structural drawing of flywheel: 25, hts magnetic levitation bearing rotor--flywheel; 34, cylindrical permanent magnet; 35, annular permanent magnet.
Fig. 5 is the superconduction block material layout plan of hts magnetic levitation bearing stator of the present utility model.
Fig. 6 is a high-temperature superconductive hybrid magnetic suspension bearing system principle diagram of the present utility model.
Mechanical structure of the present utility model is as shown in Figure 1:
The utility model high-temperature superconductive hybrid magnetic suspension bearing has adopted three kinds of magnetic suspension bearings by what, and its rotor has comprised the rotor of these three kinds of bearings.As shown in Figure 1, rotating shaft and the parts that are assemblied in the rotating shaft thereof are referred to as rotor, are followed successively by from top to bottom: permanent magnetism magnetic suspension bearing rotor 8, upper end radial magnetic bearing rotor 11, rotor 16, lower end radial magnetic bearing rotor 17, coupling 23, hts magnetic levitation bearing rotor 25.
Fig. 2 is a permanent magnetism magnetic suspension bearing structure sectional drawing of the present utility model.The rotor 8 of this permanent magnetism magnetic suspension bearing and stator 7 have all adopted, and following two Different Diameter are to the permanent-magnetic clamp 31 and 32 of the direction of magnetization, and the section area of each permanent-magnetic clamp equates.In order to reduce leakage field, and the utilization ratio that improves permanent-magnet material, except that interactional permanent-magnetic clamp air gap, the permanent magnetism inner and outer rings all adopts iron yoke 33 to come magnetic conduction, shield, reduced leakage field, the magnetic induction intensity at permanent-magnetic clamp air gap place is improved, and square being directly proportional of the action of a magnetic field power and magnetic induction intensity, so can improve the suspending power and the rigidity property of permanent magnetism magnetic suspension bearing greatly.
Fig. 3 is the single-degree-of-freedom structured flowchart of active magnetic bearing of the present utility model.It is mainly by active magnetic bearing stator 12,18, rotor 11,17, and sensor, controller and power amplifier are formed.In the active magnetic bearing system, each active magnetic bearing stator 12,18 is made up of four electromagnet, four electromagnet are arranged along rotor 11,17 circumference symmetry, have adopted the electromagnet of a pair of symmetry like this on single degrees of freedom, thereby can control two radially degrees of freedom.As shown in Figure 3, to displacement signal, and,, thereby make rotor on one degree of freedom, be subjected to the opposite electromagnetic force of both direction simultaneously by sensor by the differential mode DM by the power magnification circuit of a pair of symmetry.
Figure 4 shows that the hts magnetic levitation bearing rotor--flywheel 25 structures.Rotor--flywheel 25 comprises the columniform permanent magnet 34 and annular permanent magnet 35 compositions that are positioned at the center.In order to increase the magnetic field intensity gradient of magnet structure, cylindrical body is opposite with the direction of magnetization of annulus, and a direction makes progress, and one downwards.
Figure 5 shows that the superconduction block material layout plan of hts magnetic levitation bearing stator, the utility model has adopted seven measure-alike yttrium barium copper oxides (YBCO) with the preparation of melting texture method.Centering wherein, all the other six around the center, and bulk is evenly arranged on the circumference, with permanent magnetism circle ring center circle alignment.
Have very strong diamagnetism and flux pinning owing to be in the high temperature superconductor of superconducting state, hts magnetic levitation bearing itself is exactly a stable system, it both had been an axial magnetic suspension bearing, also was radial magnetic bearing, can realize the stable suspersion and the running of rotor.In order to improve the bearing capacity of super-conductive magnetic suspension bearing, be placed with an axial permanent magnetic magnetic suspension bearing 7,8,9 at top of the present utility model, in order to axial unloading, so that the rotor that suspended load discharge is bigger, because hts magnetic levitation bearing radial rigidity and damping are little, the utility model middle part be equipped with two radially active magnetic bearing 11,12,13,17,18,19,, in order to radially wobbling that control produces when rotor surely floats the dynamic process that carries out the transition to steady running by static state, improve radial rigidity and damping, thereby realize running up of rotor.In two ends of rotor protection bearing 5 is housed, so that system debug, and system high-speed turns round and shields when out of control.Phase asynchronous mid-frequency motor 15,16 is equipped with at the system and device middle part, in order to drive the rotor high-speed rotation.The flywheel 25 of embedded cylindrical permanent magnet 35 and annular permanent magnet 36 is housed in the rotor bottom, and it is with the stator of lower end---and seven high-temperature superconducting block yttrium barium copper oxides (YBCO) 26 constitute hts magnetic levitation bearing.
The active magnetic bearing control system is mainly by active magnetic bearing stator 12,18, rotor 11,17, and sensor, controller and power amplifier are formed.It has adopted upper and lower two active magnetic bearings 11,12,13,17,18,19 radially, utilize displacement transducer 6,20 to detect the offset deviation signal of rotor, controller and power amplifier via certain control law, regulate the radially field current of electromagnet, to adjust electromagnetic attraction to rotor, rotor is controlled on the shaft core position, thereby realizes the radial motion of rotor is controlled.
Whole high-temperature superconductive hybrid magnetic suspension bearing system architecture schematic representation as shown in Figure 6, wherein dotted portion is the high-temperature superconductive hybrid magnetic suspension bearing among the figure.Whole high-temperature superconductive hybrid magnetic suspension bearing system comprises the permanent magnetism magnetic suspension bearing, active magnetic bearing, hts magnetic levitation bearing rotor--flywheel 25, hts magnetic levitation bearing stator 26, liquid nitrogen container 28, displacement transducer, controller and power amplifier, compositions such as threephase asynchronous machine and variable-frequency power sources.
Describe the working principle and the process of this hybrid magnetic suspension bearing in detail below in conjunction with Fig. 6:
The permanent magnetism magnetic suspension bearing relies on the interaction force between the permanent magnet to produce suspension, does not need active control.Therefore the utility model adopts the axial permanent magnetic magnetic suspension bearing, and axially stable suspending power is provided, thus can utilize it axially to unload, the rotor that suspended, and pre-determine the axial position of rotor.For vertical system, system remains the axial suspension state.For bearing capacity and the rigidity that improves the permanent magnetism magnetic suspension bearing, the rotor 8 of this permanent magnetism magnetic suspension bearing and stator 7 have all adopted, and following two Different Diameter are to the permanent-magnetic clamp 31,32 of the direction of magnetization, and the section area of each permanent-magnetic clamp equates.In order to reduce leakage field, and the utilization ratio that improves permanent-magnet material, except that interactional permanent-magnetic clamp gap, the permanent magnetism inner and outer rings all adopts iron yoke 33 to come magnetic conduction.
The working procedure of the active permanent magnetic hybrid magnetic suspension bearing of the utility model high-temperature superconductive is: at first, from the Dewar container for liquefied nitrogen container, inject liquid nitrogen to liquid nitrogen container, after high-temperature superconducting block yttrium barium copper oxide (YBCO) cooling, promptly be in superconducting state, have diamagnetism and flux pinning.Hts magnetic levitation bearing is exactly to utilize the diamagnetism of superconduction block material that a static-magnetic suspending power is provided, and utilizes pinning that a stabilizing force is provided, thereby realizes stable suspersion, so it both had been an axial magnetic suspension bearing, also is radial magnetic bearing.But the magnetic suspension force of hts magnetic levitation bearing is relevant with the original state and the historical process of the preceding externally-applied magnetic field of cooling, has hysteresis characteristic, and the working position is uncertain, and has a cold and cold problem of null field.The null field cool condition can provide bigger magnetic suspension force down, but rigidity is not as a cold situation.The utility model has adopted the axial permanent magnetic magnetic suspension bearing, utilize permanent magnet that bigger magnetic suspension force is provided, axial position is definite, and can and regulate bolt 30 and adjust the hts magnetic levitation bearing rotor by support cylinder 24--the working gap distance of flywheel 25 and stator 26.Working clearance is more little, 35 of the embedded cylinder permanent magnet 34 of rotor--flywheel 25 bottoms and annular permanent magnets are the closer to high-temperature superconducting block, the background magnetic field of high-temperature superconducting block is just high more so, like this, high-temperature superconducting block is cooled off in magnetic field, be the high-temperature superconducting magnetic levitation axle works in a cold mode, thereby it is low to have solved the bearing capacity that hts magnetic levitation bearing exists, problem such as the uncertain and null field in working position is cold and cold.
The hybrid magnetic suspension bearing system that forms by hts magnetic levitation bearing and axial permanent magnetic magnetic suspension bearing, can the slow-speed of revolution steadily rotate, but, rotor by low frequency in the high frequency accelerating process, there is the critical speed of rotation problem, because hts magnetic levitation bearing radial rigidity and damping are little, are difficult to steadily cross critical speed of rotation.In order steadily to cross critical speed of rotation, as shown in Figure 1, the motor 15 that is equipped with at the utility model rotating shaft 14 middle parts, 16 with top axial permanent magnetism magnetic suspension bearing 7, between 8, and motor and lower end hts magnetic levitation bearing 25, between 26, each installs a radially active magnetic bearing 11,12,13 and 17,18,19, control two of rotor upper end radially degrees of freedom respectively, with two of lower end degrees of freedom radially, have four radially degrees of freedom altogether, like this, can control radially wobbling of when rotor surely floats the dynamic process that carries out the transition to steady running by static state, producing, improve radial rigidity and damping, thereby realize running up of rotor.
Embodiment
Fig. 1 is the specific embodiment structural drawing.As shown in Figure 1, the hts magnetic levitation bearing 25,26 of present embodiment is installed in the bottom, axial permanent magnetic magnetic suspension bearing 7,8,9 is equipped with at the top, between the motor 15,16 and top axial permanent magnetism magnetic suspension bearing 7,8 that is equipped with at rotating shaft 14 middle parts, and between motor and the lower end hts magnetic levitation bearing 25,26, each installs a radially active magnetic bearing 11,12,13 and 17,18,19.The rotor 8 of permanent magnetism magnetic suspension bearing and stator 7 have all adopted, and following two Different Diameter are to the permanent-magnetic clamp 31,32 of the direction of magnetization, and the section area of each permanent-magnetic clamp equates.In order to reduce leakage field, and the utilization ratio that improves permanent-magnet material, except that interactional permanent-magnetic clamp gap, the permanent magnetism inner and outer rings all adopts iron yoke 33 to come magnetic conduction.
The super-conductive magnetic suspension bearing of present embodiment has adopted seven φ 30 * 18mm yttrium barium copper oxides (YBCO) bulk, and the maximum magnetic flux buoyant density can reach 14.4N/cm
2Performance index are: rotor quality is about 3.5kg, and radial rigidity is about 1.68MN/m, and axial rigidity is about 65N/mm, and running speed is 9,600rpm.Hts magnetic levitation bearing rigidity is low, is approximately 10N/mm.In order to improve the rigidity of super-conductive magnetic suspension bearing, present embodiment adopts radially active magnetic bearing, and radial rigidity reaches 1.68MN/m, and super-conductive magnetic suspension bearing radial rigidity has been improved two orders of magnitude; In addition, adopted the axial permanent magnetic magnetic suspension bearing, not only axially unloading, and the hts magnetic levitation bearing axial rigidity has been improved more than six times, and reached 65N/mm, the high-temperature superconductive hybrid magnetic suspension bearing is run up, running speed is 9,600rpm, and have stability in large.
The utility model has important in theory Research Significance and actual application value to development magnetic suspension bearing technology and the application of high-temperature superconducting block engineering.
Claims (2)
1, a kind of hybrid magnetic suspension bearing, it is characterized in that constituting by permanent magnetism magnetic suspension bearing, active magnetic bearing and super-conductive magnetic suspension bearing, a hts magnetic levitation bearing is installed in the bottom, an axial permanent magnetic magnetic suspension bearing is equipped with at the top, and two radially active magnetic bearings have been installed between permanent magnetism magnetic suspension bearing and hts magnetic levitation bearing.
2, according to the described hybrid magnetic suspension bearing of claim 1, it is characterized in that following two section area equate in the employing of permanent magnetism magnetic suspension bearing rotor and stator, the permanent-magnetic clamp that the diametrical magnetization direction is different, the permanent magnetism inner and outer rings adopts iron yoke magnetic conduction and shielding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022887563U CN2597738Y (en) | 2002-12-11 | 2002-12-11 | Hybrid magnetic suspension bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022887563U CN2597738Y (en) | 2002-12-11 | 2002-12-11 | Hybrid magnetic suspension bearing |
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| Publication Number | Publication Date |
|---|---|
| CN2597738Y true CN2597738Y (en) | 2004-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU022887563U Expired - Fee Related CN2597738Y (en) | 2002-12-11 | 2002-12-11 | Hybrid magnetic suspension bearing |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351538C (en) * | 2004-12-06 | 2007-11-28 | 李岭群 | Mechanical-permanent magnetic suspension composite shaft |
| CN100458198C (en) * | 2006-11-21 | 2009-02-04 | 浙江大学 | Rotor weight self-adaptive type permanent magnet thrust bearing |
| CN101243263B (en) * | 2005-08-24 | 2010-08-11 | 梅科斯特拉克斯勒股份公司 | Magnetic bearing device with an improved vacuum feedthrough |
| CN1569511B (en) * | 2004-05-12 | 2010-10-06 | 清华大学 | High-temperature superconductive magnetic levitation device |
| CN1988324B (en) * | 2005-12-23 | 2010-10-06 | 中国科学院电工研究所 | High speed magnetic resistance motor |
| CN102314989A (en) * | 2010-07-05 | 2012-01-11 | 卓向东 | Basic structure for natural permanent magnet waves and permanent magnet interference waves for magnetic suspension |
| CN102437675A (en) * | 2011-10-13 | 2012-05-02 | 山东科技大学 | Energy storage device of magnetic suspension flywheel |
| CN102664567A (en) * | 2012-05-11 | 2012-09-12 | 北京航空航天大学 | Superconductive and energy-storage magnetic suspension flywheel with high energy density |
| CN102979815A (en) * | 2012-11-30 | 2013-03-20 | 中国科学院国家天文台南京天文光学技术研究所 | Horizontal astronomical telescope spindle magnetic levitation support shaft system structure suitable for moon |
| CN103064038A (en) * | 2013-01-03 | 2013-04-24 | 武汉理工大学 | Unidirection mixing magnetic levitation testing device |
| CN107255118A (en) * | 2017-07-26 | 2017-10-17 | 珠海格力节能环保制冷技术研究中心有限公司 | The rotor of magnetic suspension bearing and its assembly tooling and assembly method |
| CN108361280A (en) * | 2018-05-03 | 2018-08-03 | 南京高明环保科技有限公司 | Permanent magnetism magnetic suspension bearing |
| CN108708904A (en) * | 2018-06-26 | 2018-10-26 | 坎德拉（深圳）科技创新有限公司 | Permanent-magnet bearing |
| CN108869543A (en) * | 2018-06-08 | 2018-11-23 | 中国科学院电工研究所 | A kind of hybrid superconducting magnetic bearing system of flywheel energy storage |
| CN108988689A (en) * | 2018-08-15 | 2018-12-11 | 中国电子科技集团公司第十六研究所 | The poly- magnetic mechanism of permanent magnetism suitable for high temperature superconducting magnetic suspension system |
| CN109826867A (en) * | 2019-02-20 | 2019-05-31 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | A kind of hybrid magnetic suspension bearing system and generator |
| CN110111965A (en) * | 2019-05-09 | 2019-08-09 | 西南交通大学 | A kind of construction mixing superconducting magnet and the magnetic suspension bearing with it |
| CN111525843A (en) * | 2020-04-17 | 2020-08-11 | 北京泓慧国际能源技术发展有限公司 | Levelness control system, equipment and method for flywheel base |
-
2002
- 2002-12-11 CN CNU022887563U patent/CN2597738Y/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1569511B (en) * | 2004-05-12 | 2010-10-06 | 清华大学 | High-temperature superconductive magnetic levitation device |
| CN100351538C (en) * | 2004-12-06 | 2007-11-28 | 李岭群 | Mechanical-permanent magnetic suspension composite shaft |
| CN101243263B (en) * | 2005-08-24 | 2010-08-11 | 梅科斯特拉克斯勒股份公司 | Magnetic bearing device with an improved vacuum feedthrough |
| CN1988324B (en) * | 2005-12-23 | 2010-10-06 | 中国科学院电工研究所 | High speed magnetic resistance motor |
| CN100458198C (en) * | 2006-11-21 | 2009-02-04 | 浙江大学 | Rotor weight self-adaptive type permanent magnet thrust bearing |
| CN102314989A (en) * | 2010-07-05 | 2012-01-11 | 卓向东 | Basic structure for natural permanent magnet waves and permanent magnet interference waves for magnetic suspension |
| CN102437675A (en) * | 2011-10-13 | 2012-05-02 | 山东科技大学 | Energy storage device of magnetic suspension flywheel |
| CN102437675B (en) * | 2011-10-13 | 2016-01-06 | 山东科技大学 | Energy storage device of magnetic suspension flywheel |
| CN102664567B (en) * | 2012-05-11 | 2015-02-25 | 北京航空航天大学 | Superconductive and energy-storage magnetic suspension flywheel with high energy density |
| CN102664567A (en) * | 2012-05-11 | 2012-09-12 | 北京航空航天大学 | Superconductive and energy-storage magnetic suspension flywheel with high energy density |
| CN102979815A (en) * | 2012-11-30 | 2013-03-20 | 中国科学院国家天文台南京天文光学技术研究所 | Horizontal astronomical telescope spindle magnetic levitation support shaft system structure suitable for moon |
| CN103064038A (en) * | 2013-01-03 | 2013-04-24 | 武汉理工大学 | Unidirection mixing magnetic levitation testing device |
| CN103064038B (en) * | 2013-01-03 | 2015-04-08 | 武汉理工大学 | Unidirection mixing magnetic levitation testing device |
| CN107255118A (en) * | 2017-07-26 | 2017-10-17 | 珠海格力节能环保制冷技术研究中心有限公司 | The rotor of magnetic suspension bearing and its assembly tooling and assembly method |
| CN108361280A (en) * | 2018-05-03 | 2018-08-03 | 南京高明环保科技有限公司 | Permanent magnetism magnetic suspension bearing |
| CN108869543A (en) * | 2018-06-08 | 2018-11-23 | 中国科学院电工研究所 | A kind of hybrid superconducting magnetic bearing system of flywheel energy storage |
| CN108708904A (en) * | 2018-06-26 | 2018-10-26 | 坎德拉（深圳）科技创新有限公司 | Permanent-magnet bearing |
| CN108988689A (en) * | 2018-08-15 | 2018-12-11 | 中国电子科技集团公司第十六研究所 | The poly- magnetic mechanism of permanent magnetism suitable for high temperature superconducting magnetic suspension system |
| CN109826867A (en) * | 2019-02-20 | 2019-05-31 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | A kind of hybrid magnetic suspension bearing system and generator |
| CN110111965A (en) * | 2019-05-09 | 2019-08-09 | 西南交通大学 | A kind of construction mixing superconducting magnet and the magnetic suspension bearing with it |
| CN111525843A (en) * | 2020-04-17 | 2020-08-11 | 北京泓慧国际能源技术发展有限公司 | Levelness control system, equipment and method for flywheel base |
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