CN106849482A - Magnetic suspension motor and its method of work without thrust disc - Google Patents
Magnetic suspension motor and its method of work without thrust disc Download PDFInfo
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- CN106849482A CN106849482A CN201710120235.8A CN201710120235A CN106849482A CN 106849482 A CN106849482 A CN 106849482A CN 201710120235 A CN201710120235 A CN 201710120235A CN 106849482 A CN106849482 A CN 106849482A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
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- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a kind of magnetic suspension motor without thrust disc and its method of work, it is related to magnetic suspension motor technical field.The magnetic suspension motor includes working machine（1）, left protection bearing（2‑1）, left axial magnetic suspension bearing（3‑1）, left radial magnetic bearing（4‑1）, high-speed electric expreess locomotive（5）, right radial magnetic bearing（4‑2）, right axial magnetic suspension bearing（3‑2）, right protection bearing（2‑2）, rotor mandrel（6）.Radial magnetic bearing and radial direction permeability magnetic material（8）Between electromagnetic force, axial magnetic suspension bearing and axial permeability magnetic material（7）Between electromagnetic force, to rotor mandrel（6）Radial and axial displacement carries out active control；Present invention eliminates thrust disc（9）, it is easy to magnetic suspension motor to assemble and cool down, and rotor dynamics performance meets the requirement of rotation at a high speed.
Description
Technical field
Patent of the present invention is related to magnetic levitation technology field, more particularly to a kind of magnetic suspension motor application field.
Background technology
In magnetic suspension motor structure, traditional magnetic suspension motor structure includes working machine（Impeller or other loads）, it is left
Protection bearing, left radial magnetic bearing, high-speed electric expreess locomotive, left axial magnetic suspension bearing, thrust disc, right axial magnetic suspension bearing,
Right radial magnetic bearing, right protection bearing, rotor mandrel.Rotor mandrel is cased with magnetic conduction in radial magnetic bearing correspondence position
Material, the electromagnetic force between permeability magnetic material and radial magnetic bearing can be to the radial displacement active control of rotor mandrel, axially
Electromagnetic force between magnetic suspension bearing and thrust disc can be to the axial displacement active control of rotor mandrel.Thrust disc diameter specific diameter to
Magnetic suspension bearing rotor diameter is big, and axial magnetic suspension bearing is distributed in thrust side surface two ends.
In traditional magnetic suspension motor, using it is air-cooled when, coolant flow channel along rotor axis, be mainly used in permanent magnet cooling,
As shown by the arrows in Figure 2, cooling medium sequentially passes through left protection bearing, left radial magnetic bearing, high-speed electric expreess locomotive, left axial magnetic
Suspension bearing, thrust disc, right axial magnetic suspension bearing, right radial magnetic bearing, right protection bearing.Because major diameter thrust disc
Presence block the runner of cooling medium, so the big easily loss of excitation of permanent magnet temperature rise.And radial magnetic bearing, axial magnetic
Suspension bearing, thrust disc, rotor mandrel's assembly or disassembly are very inconvenient.
The content of the invention
Deficiency of the present invention for existing magnetic suspension motor structure, there is provided a kind of magnetic suspension motor and its work without thrust disc
Make method, cooling medium runner can be made unimpeded, good cooling results, and easy disassembly.
What the present invention was realized by following measures：
A kind of magnetic suspension motor without thrust disc, including working machine, left protection bearing, left axial magnetic suspension bearing, left radial direction magnetic
Suspension bearing, high-speed electric expreess locomotive, right radial magnetic bearing, right axial magnetic suspension bearing, right protection bearing, rotor mandrel；It is described
Rotor mandrel is symmetrical structure, and it is by interlude, left second segment, right second segment on the outside of interlude, positioned at left and right second
Left 3rd section, right 3rd section of composition on the outside of section；The high-speed electric expreess locomotive is arranged in the interlude of rotor mandrel, the left radial direction magnetic
Suspension bearing, right radial magnetic bearing are arranged in the interlude of rotor mandrel and are located at the high-speed electric expreess locomotive left and right sides respectively；Institute
State left axial magnetic suspension bearing, right axial magnetic suspension bearing and be respectively arranged left second segment, right second segment in rotor mandrel；It is described
Left protection bearing, right protection bearing are respectively arranged in the left 3rd section, right 3rd section of rotor mandrel；Described working machine is installed on
One end of rotor mandrel；Rotor mandrel's interlude is in left radial magnetic bearing and right radial magnetic bearing correspondence position
It is cased with radial direction permeability magnetic material；The end face of rotor mandrel's interlude is in left axial magnetic suspension bearing and right axial magnetic suspension bearing
Correspondence position is cased with axial permeability magnetic material.
The method of work of the magnetic suspension motor without thrust disc, it is characterised in that：Radial magnetic bearing and radial guiding
Electromagnetic force between electromagnetic force, axial magnetic suspension bearing between magnetic material and axial permeability magnetic material, to rotor mandrel radially and
The displacement of axial direction carries out active control；Cooling medium sequentially passes through left axial magnetic suspension bearing, left radial magnetic bearing, high speed
Motor, right radial magnetic bearing, right axial magnetic suspension bearing, runner are unimpeded.
Operation principle of the invention：
Rotor mandrel's interlude is cased with radial direction permeability magnetic material, end face and is cased with axially leading in radial magnetic bearing correspondence position
Magnetic material, rotor mandrel's interlude end face can be as the two of thrust disc end faces.When the coil electricity of magnetic suspension bearing, nothing
By rotor mandrel in static suspension state or high speed rotation status, the electromagnetic force between magnetic suspension bearing and permeability magnetic material can
Active control is carried out to rotor mandrel's displacement.High-speed electric expreess locomotive controls the rotating speed of rotor mandrel.Protection bearing is in axial magnetic axle
Hold and support and protective effect are risen to rotor mandrel when not worked with axial magnetic suspension bearing.
Magnetic suspension motor work when, cooling medium sequentially pass through working machine, left protection bearing, left axial magnetic suspension bearing,
Left radial magnetic bearing, high-speed electric expreess locomotive, right radial magnetic bearing, right axial magnetic suspension bearing, right protection bearing, such as Fig. 1
Shown in middle arrow, runner is unimpeded, and resistance is small, small, the good cooling results so permanent magnet heats up.
Beneficial effects of the present invention：
1. rotor mandrel's interlude end face is cased with permeability magnetic material, so the end face at rotor mandrel's interlude two ends can be as thrust
Two end faces of disk, eliminate thrust disc.
2. cooling medium runner is unimpeded, and resistance is small, small, the good cooling results so permanent magnet heats up, and solves permanent magnet easy
Loss of excitation problem.
3. axial magnetic suspension bearing is arranged in outside two radial magnetic bearings, and without thrust disc, is easy to assembling.
Brief description of the drawings
Fig. 1 is the magnetic suspension motor structure chart without thrust disc；
Fig. 2 is traditional magnetic suspension motor structure chart；
Label title in figure：1 working machine, the left protection bearings of 2-1, the right protection bearings of 2-2, the left axial magnetic suspension bearings of 3-1,3-2
Right axial magnetic suspension bearing, the left radial magnetic bearings of 4-1, the right radial magnetic bearings of 4-2,5 high-speed electric expreess locomotives, 6 rotor mandrels,
7-1 left axles to permeability magnetic material, 7-2 right axles to permeability magnetic material, the left radial direction permeability magnetic materials of 8-1, the right radial direction permeability magnetic materials of 8-2,9 thrusts
Disk.
Specific embodiment
Technical scheme is explained below with reference to accompanying drawing.
The invention discloses a kind of magnetic suspension motor without thrust disc and its method of work, it is related to magnetic suspension motor technology to lead
Domain.The magnetic suspension motor structure includes working machine 1, left protection bearing 2-1, left axial magnetic suspension bearing 3-1, left axial magnetic
Bearing 4-1, high-speed electric expreess locomotive 5, right radial magnetic bearing 4-2, right axial magnetic suspension bearing 3-2, right protection bearing 2-2, rotor
Mandrel 6.The rotor mandrel 6 is symmetrical structure, and it is by interlude, left second segment, right second segment, position on the outside of interlude
Left 3rd section, right 3rd section of composition on the outside of left and right second segment.The high-speed electric expreess locomotive 5 is arranged in the centre of rotor mandrel 6
Section, the left radial magnetic bearing 4-1, right radial magnetic bearing 4-2 are arranged in the interlude of rotor mandrel 6 and respectively position
In the left and right sides of high-speed electric expreess locomotive 5；The left axial magnetic suspension bearing 3-1, right axial magnetic suspension bearing 3-2 are respectively arranged in rotor
The left second segment of mandrel 6, right second segment；The left protection bearing 2-1, right protection bearing 2-2 are respectively arranged in rotor mandrel 6
It is left 3rd section, right 3rd section；Described working machine 1 is installed on one end of rotor mandrel 6.The interlude of the rotor mandrel 6 is in footpath
Radial direction permeability magnetic material, end face are cased with to magnetic suspension bearing correspondence position be cased with axial permeability magnetic material, the interlude end face of rotor mandrel 6
Can be as the two of thrust disc 9 end faces.
High-speed electric expreess locomotive 5 controls the rotating speed of rotor mandrel 6.Protection bearing is in radial magnetic bearing and axial magnetic suspension bearing
To 6 supports of rotor mandrel and protective effect when not working.
Structure such as Fig. 1, when the coil electricity of radial magnetic bearing, radial magnetic bearing and radial direction permeability magnetic material it
Between displacement of the electromagnetic force to rotor radial carry out active control；When the coil electricity of axial magnetic suspension bearing 3, axial magnetcisuspension
Floating axle holds and displacement of the electromagnetic force between axial permeability magnetic material to rotor axial carries out active control.Magnetic suspension motor works
When, cooling medium sequentially passes through left axial magnetic suspension bearing 3-1, left radial magnetic bearing 4-1, high-speed electric expreess locomotive 5, right radial direction magnetic
Suspension bearing 4-2, right axial magnetic suspension bearing 3-2, as shown by the arrows in Figure 1, runner is unimpeded, and resistance is small, so permanent magnetism body temperature
Rise small, good cooling results.Magnetic suspension motor structure without thrust disc can successively assemble rotor, left protection bearing 2- in assembling
1, left axial magnetic suspension bearing 3-1, left radial magnetic bearing 4-1, high-speed electric expreess locomotive 5, right radial magnetic bearing 4-2, right axle
To magnetic suspension bearing 3-2, right protection bearing 2-2.Compared to traditional magnetic suspension motor structure, assembly or disassembly is all very convenient.
Claims (2)
1. a kind of magnetic suspension motor without thrust disc,
Including working machine（1）, left protection bearing（2-1）, left axial magnetic suspension bearing（3-1）, left radial magnetic bearing（4-
1）, high-speed electric expreess locomotive（5）, right radial magnetic bearing（4-2）, right axial magnetic suspension bearing（3-2）, right protection bearing（2-2）, turn
Sub- mandrel（6）；
It is characterized in that：
The rotor mandrel（6）It is symmetrical structure, it is by interlude, left second segment, right second segment, position on the outside of interlude
Left 3rd section, right 3rd section of composition on the outside of left and right second segment；
The high-speed electric expreess locomotive（5）It is arranged in rotor mandrel（6）Interlude, the left radial magnetic bearing（4-1）, right radial direction
Magnetic suspension bearing（4-2）It is arranged in rotor mandrel（6）Interlude and respectively be located at high-speed electric expreess locomotive（5）The left and right sides；
The left axial magnetic suspension bearing（3-1）, right axial magnetic suspension bearing（3-2）It is respectively arranged in rotor mandrel（6）A left side
Second segment, right second segment；
The left protection bearing（2-1）, right protection bearing（2-2）It is respectively arranged in rotor mandrel（6）Left 3rd section, the right 3rd
Section；
Described working machine（1）It is installed on rotor mandrel（6）One end；
The rotor mandrel（6）Interlude is in left radial magnetic bearing（4-1）With right radial magnetic bearing（4-2）Correspondence position
Put and be cased with radial direction permeability magnetic material；
The rotor mandrel（6）The end face of interlude is in left axial magnetic suspension bearing（3-1）With right axial magnetic suspension bearing（3-2）
Correspondence position is cased with axial permeability magnetic material.
2. the method for work of the magnetic suspension motor without thrust disc according to claim 1, it is characterised in that：
Between electromagnetic force, axial magnetic suspension bearing and axial permeability magnetic material between radial magnetic bearing and radial direction permeability magnetic material
Electromagnetic force, to rotor mandrel（6）Radial and axial displacement carries out active control；
Cooling medium sequentially passes through left axial magnetic suspension bearing（3-1）, left radial magnetic bearing（4-1）, high-speed electric expreess locomotive（5）、
Right radial magnetic bearing（4-2）, right axial magnetic suspension bearing（3-2）, runner is unimpeded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710120235.8A CN106849482B (en) | 2017-03-02 | 2017-03-02 | Magnetic suspension motor and its working method without thrust disc |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710120235.8A CN106849482B (en) | 2017-03-02 | 2017-03-02 | Magnetic suspension motor and its working method without thrust disc |
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| Publication Number | Publication Date |
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| CN106849482A true CN106849482A (en) | 2017-06-13 |
| CN106849482B CN106849482B (en) | 2019-04-05 |
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| CN201710120235.8A Active CN106849482B (en) | 2017-03-02 | 2017-03-02 | Magnetic suspension motor and its working method without thrust disc |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222132A (en) * | 2017-06-30 | 2017-09-29 | 北京航空航天大学 | One kind is without thrust disc magnetic suspension motor |
| CN107370321A (en) * | 2017-08-24 | 2017-11-21 | 莱克电气股份有限公司 | A kind of motor of dust collector and dust catcher |
| CN109340258A (en) * | 2018-11-21 | 2019-02-15 | 珠海格力电器股份有限公司 | Novel permanent magnet electric magnetic suspension bearing structure |
| WO2019037523A1 (en) * | 2017-08-24 | 2019-02-28 | 莱克电气股份有限公司 | Vacuum cleaner motor and vacuum cleaner |
| CN109780059A (en) * | 2019-03-07 | 2019-05-21 | 苏州赛得尔智能科技有限公司 | A kind of four-degree-of-freedom linear motor magnetic suspension bearing |
| CN110571971A (en) * | 2019-11-06 | 2019-12-13 | 山东天瑞重工有限公司 | magnetic suspension motor with negative pressure air cooling device |
| CN115217845A (en) * | 2021-04-19 | 2022-10-21 | 青岛海特生物医疗有限公司 | Centrifugal machine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222132A (en) * | 2017-06-30 | 2017-09-29 | 北京航空航天大学 | One kind is without thrust disc magnetic suspension motor |
| CN107222132B (en) * | 2017-06-30 | 2019-06-11 | 北京航空航天大学 | A kind of no thrust disc magnetic suspension motor |
| CN107370321A (en) * | 2017-08-24 | 2017-11-21 | 莱克电气股份有限公司 | A kind of motor of dust collector and dust catcher |
| WO2019037523A1 (en) * | 2017-08-24 | 2019-02-28 | 莱克电气股份有限公司 | Vacuum cleaner motor and vacuum cleaner |
| WO2019037524A1 (en) * | 2017-08-24 | 2019-02-28 | 莱克电气股份有限公司 | Vacuum cleaner motor and vacuum cleaner |
| CN109340258A (en) * | 2018-11-21 | 2019-02-15 | 珠海格力电器股份有限公司 | Novel permanent magnet electric magnetic suspension bearing structure |
| CN109780059A (en) * | 2019-03-07 | 2019-05-21 | 苏州赛得尔智能科技有限公司 | A kind of four-degree-of-freedom linear motor magnetic suspension bearing |
| CN110571971A (en) * | 2019-11-06 | 2019-12-13 | 山东天瑞重工有限公司 | magnetic suspension motor with negative pressure air cooling device |
| CN110571971B (en) * | 2019-11-06 | 2020-03-03 | 山东天瑞重工有限公司 | Magnetic suspension motor with negative pressure air cooling device |
| CN115217845A (en) * | 2021-04-19 | 2022-10-21 | 青岛海特生物医疗有限公司 | Centrifugal machine |
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| CN106849482B (en) | 2019-04-05 |
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