CN201788086U - Five degree-of-freedom magnetic levitation bearing mechanical test stand - Google Patents
Five degree-of-freedom magnetic levitation bearing mechanical test stand Download PDFInfo
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- CN201788086U CN201788086U CN2009202827827U CN200920282782U CN201788086U CN 201788086 U CN201788086 U CN 201788086U CN 2009202827827 U CN2009202827827 U CN 2009202827827U CN 200920282782 U CN200920282782 U CN 200920282782U CN 201788086 U CN201788086 U CN 201788086U
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- sensor stand
- suspension
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Abstract
The utility model relates to the technical field of magnetic levitation bearings, and discloses a five degree-of-freedom magnetic levitation bearing mechanical test stand. The mechanical test stand comprises a left end cover (3), a right end cover (18), a left thrust magnetic levitation bearing (5), a right thrust magnetic levitation bearing (17), a left radial magnetic levitation bearing (7), a right radial magnetic levitation bearing (14), a left sensor bracket (8), a right sensor bracket (13), a left bearing base (6), a right bearing base (15), a motor stator, a motor rotor shaft (4), a base (19), a positioning mandrel (16), and a protecting bearing (22). The mechanical test stand is convenient for assembly and disassembly and adjustment, and has compact structure, reasonable design, controllable supporting force and no need of lubrication. The mechanical test stand can be used for teaching and scientific research on magnetic levitation bearings and rotor dynamics.
Description
Technical field
The utility model relates to suspension of five-freedom degree magnetic bearing mechanical test platform, belongs to the magnetic suspension bearing technical field.
Background technology
The suspension of five-freedom degree magnetic bearing arrangement is to utilize electromagnetic force that rotor is suspended in the space, makes a kind of novel high-performance bearing of realizing contactless supporting between rotor and the stator.Compare with sliding bearing with traditional rolling bearing, Active Magnetic Suspending Bearing has two big advantages: 1. do not have Mechanical Contact, need not lubricating system, do not have the oil leak pollution problem; 2. supporting power is controlled.Therefore Active Magnetic Suspending Bearing not only can be applied to particular job environment such as high rotating speed, vacuum, ultra-clean and extreme temperature and pressure; But also can utilize the controlled characteristics of its supporting power that Active Compensation is carried out in the vibration of rotor, and reduce the vibration of system, improve the performance of system, have broad application prospects.
Original suspension of five-freedom degree magnetic bearing mechanical test platform, the mechanism of thrust disc on its armature spindle is used for the axial suspension of armature spindle, and the existence of thrust disc mechanism makes the dismounting inconvenience of testing table.Thrust magnetic bearing in original testing table will be arranged separately in the bearing seat.On original testing table, be not used for measuring the structure of armature spindle rotating speed and phase place, can only converse the rotating speed of armature spindle by the current signal that records.
The utility model content
The purpose of this utility model provided a kind of install and remove convenience, compact conformation, easy to adjust, need not to lubricate, suspension of five-freedom degree magnetic bearing mechanical test platform that supporting power is controlled.
The utility model adopts following technical scheme for realizing its purpose:
Suspension of five-freedom degree magnetic bearing mechanical test platform; comprise: left end cap, right end cap, left thrust magnetic suspension bearing, right thrust magnetic suspension bearing, left radial magnetic bearing, right radial magnetic bearing, left sensor stand, right sensor stand, left shaft holder, right bearing seat, motor stator, rotor axis of electric, base, location mandril, protection bearing.Described rotor axis of electric passes from the circular hole in the middle of the stator of motor.Rotor axis of electric left side section has left step right cylinder and left groove, and the right section of rotor axis of electric has right step right cylinder and right groove.In rotor axis of electric left side section, from right to left successively with left sensor stand, left side radial magnetic bearing, left side thrust magnetic suspension bearing is installed in the left shaft holder, wherein left sensor stand is installed in the rightmost of left shaft holder, the footpath that is positioned at the left step right cylinder cylindrical disc right-hand member of rotor axis of electric left side section makes progress, and rotor axis of electric passes from the endoporus of left sensor stand, left side radial magnetic bearing is installed in the left side that places left sensor stand on the left step right cylinder cylindrical disc of rotor axis of electric left side section, left side thrust magnetic suspension bearing is installed on the section of a rotor axis of electric left side and places left radial magnetic bearing left side, left end cap is contained in the left end of left shaft holder, and is contained in the left end of rotor axis of electric left side section by bearing; With above-mentioned symmetrical, in the right section of rotor axis of electric, from left to right successively with right sensor stand, right radial magnetic bearing, right thrust magnetic suspension bearing is installed in the right bearing seat, wherein right sensor stand is installed in the Far Left of right bearing seat, the footpath that is positioned at the right step right cylinder cylindrical disc left end of the right section of rotor axis of electric makes progress, and rotor axis of electric passes from the endoporus of right sensor stand, right radial magnetic bearing is installed in the right side that is positioned at right sensor stand on the right step right cylinder cylindrical disc of the right section of rotor axis of electric, right thrust magnetic suspension bearing is installed in rotor axis of electric the right and is positioned at right radial magnetic bearing right side, right end cap is contained in the right-hand member of right bearing seat, and is contained in the rotor axis of electric right-hand member by the protection bearing; Described left sensor stand and right sensor stand are equipped with displacement transducer respectively; Described left shaft holder and right bearing seat respectively by screw retention on base; Described motor is contained in the motor cabinet, motor cabinet by screw retention on base; Described base has bar-shaped trough, is used to place the bar shaped nut.On position corresponding on the base, the sensor of measuring rotating speed is installed by the bar shaped nut in the bar-shaped trough with left groove on the left side section armature spindle; On position corresponding on the base, the sensor of Measurement Phase is installed by the bar shaped nut in the bar-shaped trough with right groove on the right section armature spindle; Left shaft holder, motor cabinet and right bearing seat interconnect by location mandril, and regulate the right alignment of left shaft holder, motor cabinet and right bearing seat endoporus by location mandril.Left shaft holder, motor cabinet and right bearing seat are fixed on the base.
Compare with sliding bearing with traditional rolling bearing, Active Magnetic Suspending Bearing has two big advantages: 1. do not have Mechanical Contact, need not lubricating system, do not have the oil leak pollution problem; 2. supporting power is controlled.Therefore Active Magnetic Suspending Bearing not only can be applied to particular job environment such as high rotating speed, vacuum, ultra-clean and extreme temperature and pressure; But also can utilize the controlled characteristics of its supporting power that Active Compensation is carried out in the vibration of rotor, and reduce the vibration of system, improve the performance of system, have broad application prospects.And this mechanical test platform mounting or dismounting convenience, compact conformation, easy to adjust, need not to lubricate, reasonable in design, supporting power is controlled, can realize the control of algorithms of different to magnetic bearing, realize the on-line dynamic balancing of rotor, on this mechanical test platform, can carry out teaching, demonstration and scientific research aspect relevant magnetic suspension bearing, the rotor dynamics.
Description of drawings
Fig. 1 is the structural drawing of suspension of five-freedom degree magnetic bearing mechanical test platform;
Label title among Fig. 1: 1--bar shaped nut is used for fixing the sensor of measuring the armature spindle rotating speed; 2,20--screw is used for being connected between bearing seat and the base; The 3--left end cap; The 4-rotor axis of electric; 5,17--thrust magnetic suspension bearing; 6,15--bearing seat; 7,14--radial magnetic bearing; 8,13--sensor stand; The 9--groove is used to measure the rotating speed of armature spindle; The 10--motor cabinet; The 11--screw is used for being connected between motor cabinet and the base; The 12--groove is used to measure the phase place of armature spindle; The 16--location mandril; The 18--right end cap; The 19--base; 21--bar shaped nut is used for fixing the sensor of measuring the armature spindle phase place; 22-protects bearing;
But the sketch of counterweight part on rotor when Fig. 2 is dynamic balance test of rotor;
Label title among Fig. 2: 23--left-hand thread hole; 24--right-hand thread hole;
Fig. 3 is the left view of the base of Fig. 1;
Fig. 4 is the A-A cut-open view of Fig. 3; Label 25 among Fig. 4 is a bar-shaped trough.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is elaborated:
The suspension of five-freedom degree magnetic bearing mechanical test platform of utility model as shown in Figure 1, comprise: left end cap 3, right end cap 18, base 19, thrust magnetic suspension bearing, motor, rotor axis of electric 4, bearing seat, it is characterized in that also comprising left radial magnetic bearing 7, right radial magnetic bearing 14, left sensor stand 8, right sensor stand 13, location mandril 16, protection bearing 22, described thrust magnetic suspension bearing comprises left thrust magnetic suspension bearing 5, right thrust magnetic suspension bearing 17; Described bearing seat comprises left shaft holder 6, right bearing seat 15; Described rotor axis of electric 4 passes from the circular hole in the middle of the stator of motor, and rotor axis of electric 4 left side sections have left step right cylinder and left groove 9, and rotor axis of electric 4 right sections have right step right cylinder and right groove 12.In rotor axis of electric 4 left side sections, from right to left successively with left sensor stand 8, left side radial magnetic bearing 7, left side thrust magnetic suspension bearing 5 is installed in the left shaft holder 6, wherein left sensor stand 8 is installed in the rightmost of left shaft holder 6, the footpath that is positioned at the left step right cylinder cylindrical disc right-hand member of rotor axis of electric 4 left side sections makes progress, and rotor axis of electric 4 passes from the endoporus of left sensor stand 8, left side radial magnetic bearing 7 is installed in the left side that places left sensor stand 8 on the left step right cylinder cylindrical disc of rotor axis of electric 4 left side section, left side thrust magnetic suspension bearing 5 is installed on rotor axis of electric 4 left side sections and places left radial magnetic bearing 7 left sides, left end cap 3 is contained in the left end of left shaft holder 6, and is contained in the left end of rotor axis of electric 4 left side sections by bearing; With above-mentioned symmetrical, in rotor axis of electric 4 right sections, from left to right successively with right sensor stand 13, right radial magnetic bearing 14, right thrust magnetic suspension bearing 17 is installed in the right bearing seat 15, wherein right sensor stand 13 is installed in the Far Left of right bearing seat 15, the footpath that is positioned at the right step right cylinder cylindrical disc left end of rotor axis of electric 4 right sections makes progress, and rotor axis of electric 4 passes from the endoporus of right sensor stand 13, right radial magnetic bearing 14 is installed in the right side that is positioned at right sensor stand 13 on the right step right cylinder cylindrical disc of rotor axis of electric 4 right sections, right thrust magnetic suspension bearing 17 is installed in rotor axis of electric 4 the right and is positioned at right radial magnetic bearing 14 right sides, right end cap 18 is contained in the right-hand member of right bearing seat 15, and is contained in rotor axis of electric 4 right-hand members by protection bearing 22; Described left sensor stand 8 and right sensor stand 13 are equipped with displacement transducer respectively; Described left shaft holder 6 and right bearing seat 15 respectively by screw retention on base 19; Described motor is contained in the motor cabinet 10, and motor cabinet 10 is fixed on the base 19 by screw 11; Described base 19 has bar-shaped trough, is used to place the bar shaped nut.On position corresponding on the base, the sensor of measuring rotating speed is installed by the bar shaped nut in the bar-shaped trough with left groove on the left side section armature spindle; On position corresponding on the base, the sensor of Measurement Phase is installed by the bar shaped nut in the bar-shaped trough with right groove on the right section armature spindle; Left shaft holder 6, motor cabinet 10 and right bearing seat 15 interconnect by location mandril 16, and pass through the right alignment that location mandril 16 is regulated left shaft holder 6, motor cabinet 10 and right bearing seat 15 endoporus.Left shaft holder 6, motor cabinet 10 and right bearing seat 15 are fixed on the base.
Described location mandril 16 is 2 to 16, is used for guaranteeing the right alignment of left shaft holder 6, motor cabinet 10, right bearing seat 15 endoporus.
Described protection bearing 22 comprises 2 angular contact bearings, and the radial and axial of armature spindle protected simultaneously, makes things convenient for regulating shaft to the protection gap.
The end play that described left shaft holder 6 is regulated magnetic bearing if end play is little, moves left shaft holder 6 till being transferred to desired end play to the left side, if end play is big, just left shaft holder 6 is moved right.
Described left groove 9 for 6-10, is the rotating speed that is used for measuring rotor axis of electric 4.With 6 grooves is example, and rotor whenever turns around, and speed probe just can measure the signal of 6 saltus steps, and the sixth of the number of the skip signal that speed probe measures in a minute is exactly the rotating speed of armature spindle.
Described right groove 12 has 1, is the unbalance phase that is used for measuring rotor.
Left-hand thread hole 23 and right-hand thread hole 24 are arranged on the described rotor axis of electric 4, be used for doing the rotor counterweight as shown in Figure 2, realize the high-speed balancing of rotor.The sum of left and right threaded hole can be 6-48, and the size of threaded hole can be M1 to M3.
The bar-shaped trough 25 of described base is 2-4, and screw and bar shaped nut are housed respectively as shown in Figure 3 and Figure 4, and wherein screw is used for being connected between bearing seat and the base, and the bar shaped nut is used for fixing speed probe and phase detector.
The method of operation of the present utility model is: utilize electromagnetic force that object is not had machinery and suspend contiguously.Its course of work is: at first energising back control system suspends rotor, makes the rotor high-speed rotation with the converter power supply drive motor then.
Rotor is supported jointly by radial magnetic bearing and thrust magnetic suspension bearing, and radial magnetic bearing bears radial load, and thrust magnetic suspension bearing bearing is subjected to axial load.Rotor has 6 degree of freedom, two degree of freedom of each radial magnetic bearing control, restrict rotor about radial motion in two magnetic suspension bearings; About two thrust magnetic suspension bearings make a concerted effort to control one degree of freedom, restrict rotor is moved along axis direction; Six-freedom degree is the rotational freedom of rotor around axis, by Electric Machine Control, so that realize high speed rotating.The protection bearing at two ends mainly shields, and magnetic suspension bearing is not worked when magnetic suspension bearing breaks down, rotor stops high speed rotating, and the protection bearing temporary support rotor equipment that makes can not be damaged.
Claims (7)
1. suspension of five-freedom degree magnetic bearing mechanical test platform, comprise: left end cap (3), right end cap (18), base (19), thrust magnetic suspension bearing, motor, rotor axis of electric (4), bearing seat, it is characterized in that also comprising left radial magnetic bearing (7), right radial magnetic bearing (14), left sensor stand (8), right sensor stand (13), location mandril (16), protection bearing (22), described thrust magnetic suspension bearing comprises left thrust magnetic suspension bearing (5), right thrust magnetic suspension bearing (17); Described bearing seat comprises left shaft holder (6), right bearing seat (15); Described rotor axis of electric (4) passes from the circular hole in the middle of the stator of motor, and rotor axis of electric (4) left side section has left step right cylinder and left groove (9), and the right section of rotor axis of electric (4) has right step right cylinder and right groove (12); In rotor axis of electric (4) left side section, from right to left successively with left sensor stand (8), left side radial magnetic bearing (7), left side thrust magnetic suspension bearing (5) is installed in the left shaft holder (6), wherein left sensor stand (8) is installed in the rightmost of left shaft holder (6), the footpath that is positioned at the left step right cylinder cylindrical disc right-hand member of rotor axis of electric (4) left side section makes progress, and rotor axis of electric (4) passes from the endoporus of left sensor stand (8), left side radial magnetic bearing (7) is installed in the left side that places left sensor stand (8) on the left step right cylinder cylindrical disc of rotor axis of electric (4) left side section, left side thrust magnetic suspension bearing (5) is installed on the section of rotor axis of electric (a 4) left side and places left radial magnetic bearing (7) left side, left end cap (3) is contained in the left end of left shaft holder (6), and is contained in the left end of rotor axis of electric (4) left side section by bearing; With above-mentioned symmetrical, in the right section of rotor axis of electric (4), from left to right successively with right sensor stand (13), right radial magnetic bearing (14), right thrust magnetic suspension bearing (17) is installed in the right bearing seat (15), wherein right sensor stand (13) is installed in the Far Left of right bearing seat (15), the footpath that is positioned at the right step right cylinder cylindrical disc left end of the right section of rotor axis of electric (4) makes progress, and rotor axis of electric (4) passes from the endoporus of right sensor stand (13), right radial magnetic bearing (14) is installed in the right side that is positioned at right sensor stand (13) on the right step right cylinder cylindrical disc of the right section of rotor axis of electric (4), right thrust magnetic suspension bearing (17) is installed in rotor axis of electric (4) the right and is positioned at right radial magnetic bearing (14) right side, right end cap (18) is contained in the right-hand member of right bearing seat (15), and is contained in rotor axis of electric (4) right-hand member by protection bearing (22); Described left sensor stand (8) and right sensor stand (13) are equipped with displacement transducer respectively; Described left shaft holder (6) and right bearing seat (15) respectively by screw retention on base (19); Described motor is contained in the motor cabinet (10), and motor cabinet (10) is fixed on the base (19) by screw (11); Described base (19) has bar-shaped trough, is used to place the bar shaped nut, on position corresponding with left groove on the left side section armature spindle on the base, the sensor of measuring rotating speed is installed by the bar shaped nut in the bar-shaped trough; On position corresponding on the base, the sensor of Measurement Phase is installed by the bar shaped nut in the bar-shaped trough with right groove on the right section armature spindle; Left shaft holder (6), motor cabinet (10) and right bearing seat (15) interconnect by location mandril (16), and passing through the right alignment that location mandril (16) is regulated left shaft holder (6), motor cabinet (10) and right bearing seat (15) endoporus, left shaft holder (6), motor cabinet (10) and right bearing seat (15) are fixed on the base.
2. suspension of five-freedom degree magnetic bearing mechanical experiment platform according to claim 1 is characterized in that described location mandril (16) is 2 to 16.
3. suspension of five-freedom degree magnetic bearing mechanical experiment platform according to claim 1 is characterized in that described protection bearing (22) comprises 2 angular contact bearings.
4. suspension of five-freedom degree magnetic bearing mechanical experiment platform according to claim 1 is characterized in that described left groove (9), is 6-10.
5. suspension of five-freedom degree magnetic bearing mechanical experiment platform according to claim 1 is characterized in that described right groove (12), has 1.
6. suspension of five-freedom degree magnetic bearing mechanical experiment platform according to claim 1, it is characterized in that left-hand thread hole (23) and right-hand thread hole (24) are arranged on the described rotor axis of electric (4), left and right threaded hole add up to 6-48, the size of threaded hole is M1 to M3.
7. suspension of five-freedom degree magnetic bearing mechanical experiment platform according to claim 1 is characterized in that the bar-shaped trough (25) of described base, is 2-4; Screw and bar shaped nut are housed respectively, and wherein screw is used for being connected between bearing seat and the base, and the bar shaped nut is used for fixing speed probe and phase detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202827827U CN201788086U (en) | 2009-12-31 | 2009-12-31 | Five degree-of-freedom magnetic levitation bearing mechanical test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202827827U CN201788086U (en) | 2009-12-31 | 2009-12-31 | Five degree-of-freedom magnetic levitation bearing mechanical test stand |
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| Publication Number | Publication Date |
|---|---|
| CN201788086U true CN201788086U (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202827827U Expired - Lifetime CN201788086U (en) | 2009-12-31 | 2009-12-31 | Five degree-of-freedom magnetic levitation bearing mechanical test stand |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102331349A (en) * | 2011-06-17 | 2012-01-25 | 武汉理工大学 | Permanent magnetic bearing rigidity measuring device |
| CN103698128A (en) * | 2013-12-23 | 2014-04-02 | 武汉理工大学 | Large-air gap mixed magnetic bearing performance testing device |
| CN104236909A (en) * | 2014-09-25 | 2014-12-24 | 北京航空航天大学 | Static characteristic test device for radial magnetic bearings |
| CN106208510A (en) * | 2016-09-26 | 2016-12-07 | 南京磁谷科技有限公司 | Magnetic suspension motor rotor part and online ballasting method thereof |
| CN106950062A (en) * | 2017-04-07 | 2017-07-14 | 清华大学 | The test experimental bed of magnetic suspension bearing anti-dropping capability |
| CN107179148A (en) * | 2017-04-07 | 2017-09-19 | 清华大学 | Measure magnetic suspension shafting and the platform of the contact forces of protection bearing |
| CN107643174A (en) * | 2017-10-30 | 2018-01-30 | 南京磁谷科技有限公司 | A kind of rotor mounting structure in overspeed test bench main frame |
| CN107968530A (en) * | 2017-12-28 | 2018-04-27 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor radial-axial sensor integral type mounting structure |
| CN107979239A (en) * | 2017-12-28 | 2018-05-01 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor radial transducer mounting structure |
| CN108306448A (en) * | 2018-03-28 | 2018-07-20 | 华南理工大学 | A kind of four-degree-of-freedom magnetic suspension high speed motor and method based on conventional motors |
| CN108535647A (en) * | 2018-03-28 | 2018-09-14 | 华南理工大学 | A kind of the simple experiment platform and method of the performance test of four-degree-of-freedom magnetic suspension motor |
| CN109677646A (en) * | 2019-02-14 | 2019-04-26 | 周睿阳 | A kind of magnetic suspension support turntable |
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2009
- 2009-12-31 CN CN2009202827827U patent/CN201788086U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102331349B (en) * | 2011-06-17 | 2013-06-12 | 武汉理工大学 | Permanent magnetic bearing rigidity measuring device |
| CN102331349A (en) * | 2011-06-17 | 2012-01-25 | 武汉理工大学 | Permanent magnetic bearing rigidity measuring device |
| CN103698128A (en) * | 2013-12-23 | 2014-04-02 | 武汉理工大学 | Large-air gap mixed magnetic bearing performance testing device |
| CN103698128B (en) * | 2013-12-23 | 2016-05-11 | 武汉理工大学 | A kind of air gaps hybrid magnetic suspension bearing performance testing device |
| CN104236909A (en) * | 2014-09-25 | 2014-12-24 | 北京航空航天大学 | Static characteristic test device for radial magnetic bearings |
| CN106208510B (en) * | 2016-09-26 | 2019-02-19 | 南京磁谷科技有限公司 | Magnetic suspension motor rotor part and its online ballasting method |
| CN106208510A (en) * | 2016-09-26 | 2016-12-07 | 南京磁谷科技有限公司 | Magnetic suspension motor rotor part and online ballasting method thereof |
| CN106950062B (en) * | 2017-04-07 | 2023-11-14 | 清华大学 | Test experiment table for anti-drop performance of magnetic suspension bearing |
| CN107179148A (en) * | 2017-04-07 | 2017-09-19 | 清华大学 | Measure magnetic suspension shafting and the platform of the contact forces of protection bearing |
| CN106950062A (en) * | 2017-04-07 | 2017-07-14 | 清华大学 | The test experimental bed of magnetic suspension bearing anti-dropping capability |
| CN107179148B (en) * | 2017-04-07 | 2023-12-29 | 清华大学 | Platform for measuring contact force between magnetic suspension shafting and protection bearing |
| CN107643174A (en) * | 2017-10-30 | 2018-01-30 | 南京磁谷科技有限公司 | A kind of rotor mounting structure in overspeed test bench main frame |
| CN107968530A (en) * | 2017-12-28 | 2018-04-27 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor radial-axial sensor integral type mounting structure |
| CN107979239A (en) * | 2017-12-28 | 2018-05-01 | 南京磁谷科技有限公司 | A kind of magnetic suspension motor radial transducer mounting structure |
| CN107979239B (en) * | 2017-12-28 | 2024-03-15 | 南京磁谷科技有限公司 | Radial sensor mounting structure of magnetic suspension motor |
| CN107968530B (en) * | 2017-12-28 | 2024-03-19 | 南京磁谷科技有限公司 | Integrated mounting structure of radial axial sensor of magnetic suspension motor |
| CN108306448A (en) * | 2018-03-28 | 2018-07-20 | 华南理工大学 | A kind of four-degree-of-freedom magnetic suspension high speed motor and method based on conventional motors |
| CN108535647A (en) * | 2018-03-28 | 2018-09-14 | 华南理工大学 | A kind of the simple experiment platform and method of the performance test of four-degree-of-freedom magnetic suspension motor |
| CN108535647B (en) * | 2018-03-28 | 2023-12-05 | 华南理工大学 | Simple experimental platform and method for testing performance of four-degree-of-freedom magnetic levitation motor |
| CN109677646A (en) * | 2019-02-14 | 2019-04-26 | 周睿阳 | A kind of magnetic suspension support turntable |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |
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| CX01 | Expiry of patent term |