CN100430168C - Process for producing axial magnetic bearing structure - Google Patents
Process for producing axial magnetic bearing structure Download PDFInfo
- Publication number
- CN100430168C CN100430168C CNB2006100979900A CN200610097990A CN100430168C CN 100430168 C CN100430168 C CN 100430168C CN B2006100979900 A CNB2006100979900 A CN B2006100979900A CN 200610097990 A CN200610097990 A CN 200610097990A CN 100430168 C CN100430168 C CN 100430168C
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- Prior art keywords
- silicon steel
- steel sheet
- magnetic
- magnetic bearing
- rotor
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- Expired - Fee Related
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- 238000000034 method Methods 0.000 title description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000003475 lamination Methods 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 abstract description 8
- 240000008042 Zea mays Species 0.000 abstract 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 abstract 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 abstract 1
- 235000005822 corn Nutrition 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a method for producing radial magnetic suspension bearing, wherein it comprises preparing stator that using mould to punch the silicon steel plate into pi-shape structure, then layering the silicon steel plates into magnetic pole, arranging four poles to form a circle; using upper and lower clamping plates to fix the layered sheets to obtain the radial stator; then producing rotor that using mould to punch the silicon steel plate into ring; then layering the annular silicon steel plates into one muffle to be compressed and fixed, processing the inner hole and sheathing it on the corn rod, machining external round to obtain the rotor.
Description
One, technical field
What the present invention relates to is the manufacturing process of radial magnetic bearing.
Two, background technology
Active Magnetic Suspending Bearing 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 the machinery contact, need not lubricating system, do not have lubricating oil leakage pollution problem; 2. supporting force 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 force that Active Compensation is carried out in the vibration of rotor, reduce the vibration of system, the performance of raising system has broad application prospects.
Therefore magnetic field intensity exists magnetic hystersis loss and eddy-current loss in the variation that does not stop in Active Magnetic Suspending Bearing when work magnetic circuit in magnetic suspension bearing stator and rotor.In order to reduce magnetic hystersis loss and eddy-current loss, magnetic suspension bearing stator and rotor adopt laminated structure, and promptly the magnetic circuit of stator and rotor is formed by stacking by the silicon steel sheet that compresses.Because the influence of processing, there is anisotropy in the magnetic conduction ability of silicon steel sheet, and its direction is consistent with the machine direction of material.To not cause the magnetic circuit magnetic resistance of each free degree inhomogeneous if when superimposed silicon steel sheet, note anisotropy of material, influence the performance of magnetic suspension bearing.In order to reduce the anisotropic influence of silicon steel sheet, each sheet silicon steel sheet in superimposed its original material machine direction all with respect to the placement that rotates to an angle successively of adjacent a slice, the properties of materials direction evenly distributes in whole circumference in the whole like this lamination, make whole lamination present isotropism, make the Distribution of Magnetic Field of magnetic suspension bearing more even.The magnetic circuit of traditional two frees degree of radial magnetic bearing stator communicates.Electromagnetic finite element to the magnetic suspension bearing stator of this structure the analysis showed that: have bigger magnetic field coupling between two frees degree of magnetic suspension bearing.This will cause the suspending power on two frees degree of magnetic suspension bearing to intercouple, and increase the design difficulty of controller.
Three, summary of the invention
The objective of the invention is to propose the structure and the manufacturing process of the radial magnetic bearing that a kind of Distribution of Magnetic Field is even, the magnetic circuit coupling is little, technology is simple and cost is low.
Purpose of the present invention can reach by following design:
Radial magnetic bearing stator: at first silicon steel sheet is struck out ∏ type structure by particular manufacturing craft, formation magnetic pole then is superimposed together the ∏ type silicon steel sheet of some, with identical circle of four uniform compositions of magnetic pole group lamination, use lower plate lamination is fixed, promptly become the stator of radial magnetic bearing.
Radial magnetic bearing rotor: at first silicon steel sheet is struck out annular by particular manufacturing craft, then the belt silicon steel sheet of some being superimposed together packs into is fixed in the sleeve of being made by non-magnet material, process its endoporus and its hot jacket is installed on the plug, reprocess its cylindrical and just obtain the radial magnetic bearing rotor to the size that requires.
Good effect of the present invention is:
The present invention has simplified the processing technology of radial direction magnetic bearing, has reduced the magnetic field coupling between each free degree, has reduced magnetic hystersis loss and eddy-current loss, has weakened the influence of material anisotropy to DISTRIBUTION OF MAGNETIC FIELD.
Four, description of drawings
Fig. 1 is magnetic bearing stator lasmination figure of the present invention.
Fig. 2 is a bearing stator lamination frock sectional view of the present invention.
Fig. 3 is lamination of the present invention and frock block position figure.
Fig. 4 is a bearing stator structure of the present invention.
Label title among Fig. 4: 1 is clamping plate, and 2 is lamination.
Fig. 5 is bearing rotor lamination figure of the present invention.
Fig. 6 is a bearing rotor lamination frock sectional view of the present invention.
Fig. 7 is bearing rotor lamination clamping tool figure of the present invention.
Label title among Fig. 7: 2 is lamination, and 3 is special fixture.
Fig. 8 is bearing rotor figure of the present invention.
Five, the specific embodiment
Radial magnetic bearing stator lasmination shape as shown in Figure 1.This lamination is stamped to form with particular manufacturing craft, and its thickness and size are determined according to concrete the application.This lamination can be produced in batches, the efficient height, and cost is low.The frock sectional view that accompanying drawing 2 uses during for superimposed radial magnetic bearing stator lasmination.Its main effect is to guarantee that four groups of silicon steel sheet laminations evenly distribute at circumferencial direction, and the endoporus of lamination is substantially on a circle.The assembly relation of silicon steel laminations and frock as shown in Figure 3.Some silicon steel laminations are folded into together by the assembly relation shown in the accompanying drawing 3, compress lamination with two clamping plate then by non-magnet material processing, with rivet that two clamping plate 1 and lamination 2 are fixing, as shown in Figure 4.Take out frock at last, inside and outside circle of the lamination that fixed processing is good and end face are to the designing requirement size.
Radial magnetic bearing rotor pack partial shape as shown in Figure 5, this lamination processes with particular manufacturing craft, its thickness and size are determined according to concrete the application.Lamination endoporus rectangular teeth is consistent with the machine direction of lamination original material, is used for determining the properties of materials direction.Frock, the tooth on the lamination and the consistent size of the groove on the frock that accompanying drawing 6 uses when being depicted as superimposed rotor pack.When superimposed rotor pack, in the groove on the tooth embedding frock on the lamination, and the tooth of every lamination turns over a groove placement with respect to following a slice along fixed-direction (as clockwise).So, the characteristic direction of whole lamination is evenly distributed on the whole circumference, can weaken because the Distribution of Magnetic Field problem of non-uniform that the material anisotropy is brought.Lamination stack is incorporated into required thickness, compresses in the special anchor clamps of packing into, as shown in Figure 7.Send its end face of factory process and endoporus to requiring size then.Final assembly as shown in Figure 8.
Claims (1)
1, a kind of manufacturing process of axial magnetic bearing structure is characterized in that:
(1) manufacturing process of radial magnetic bearing stator is:
(a) at first silicon steel sheet is struck out H type structure by particular manufacturing craft;
(b) rammed ∏ type silicon steel sheet is superimposed together formation magnetic pole;
(c) with identical circle of the uniform composition of four magnetic poles, with two non-magnet material clamping plate (1) up and down four magnetic poles are fixed, make the stator that magnetic circuit cuts off mutually between the magnetic pole with the little radial magnetic bearing of magnetic circuit coupling;
(2) manufacturing process of radial magnetic bearing rotor is:
(a) at first by particular manufacturing craft silicon steel sheet is struck out annular, every silicon steel sheet endoporus all has a rectangular teeth, and the rectangular teeth direction is consistent with the machine direction of silicon steel sheet original material;
(b) will strike out mode that ring-shaped silicon steel sheet turns over groove frock on respect to a slice down along fixed-direction according to the tooth of every lamination and be superimposed together to pack into and be fixed in the sleeve of being made by non-magnet material, fixing back processing endoporus also installs on the plug in the hot jacket mode;
(c) the ring-shaped silicon steel sheet cylindrical on the above-mentioned plug of processing, the rotor of the anisotropic radial magnetic bearing of silicon steel sheet that is eliminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100979900A CN100430168C (en) | 2006-11-24 | 2006-11-24 | Process for producing axial magnetic bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100979900A CN100430168C (en) | 2006-11-24 | 2006-11-24 | Process for producing axial magnetic bearing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1962114A CN1962114A (en) | 2007-05-16 |
| CN100430168C true CN100430168C (en) | 2008-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100979900A Expired - Fee Related CN100430168C (en) | 2006-11-24 | 2006-11-24 | Process for producing axial magnetic bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100430168C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879564A (en) * | 2010-06-03 | 2010-11-10 | 西安交通大学 | Processing die for top foil of elastic foil gas bearing |
| CN101886670A (en) * | 2010-07-13 | 2010-11-17 | 清华大学 | Radical magnetic bearing with independent electromagnet structure |
| CN102072250B (en) * | 2011-01-14 | 2012-08-29 | 南京航空航天大学 | Homopolar type radial magnetic suspension bearing and manufacturing method thereof |
| CN104179809B (en) * | 2014-05-30 | 2016-06-22 | 南京磁谷科技有限公司 | A kind of compressing frock of radial direction magnetic bearing |
| CN104924034A (en) * | 2015-06-12 | 2015-09-23 | 陕西宝成航空仪表有限责任公司 | Multiple-antipode rotary transformer stator and rotor iron core machining method |
| CN107255118B (en) * | 2017-07-26 | 2023-01-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor of magnetic suspension bearing and assembly tool and assembly method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0563928A2 (en) * | 1992-04-01 | 1993-10-06 | Ebara Corporation | Magnetic bearing apparatus |
| US5300843A (en) * | 1992-11-02 | 1994-04-05 | General Electric Company | Fault tolerant active magnetic bearing |
| US5304876A (en) * | 1992-02-05 | 1994-04-19 | Alcatel Cit | Electromagnetic bearing |
| CN1104730A (en) * | 1993-11-17 | 1995-07-05 | 黄晓白 | ring magnetic suspension bearing |
| CN2783023Y (en) * | 2005-04-05 | 2006-05-24 | 西南交通大学 | No Magnetic field coupled electromagnetic bearing |
| CN1851389A (en) * | 2006-03-02 | 2006-10-25 | 南京航空航天大学 | Magnetic suspension bearing differential transformer type displacement sensor |
-
2006
- 2006-11-24 CN CNB2006100979900A patent/CN100430168C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5304876A (en) * | 1992-02-05 | 1994-04-19 | Alcatel Cit | Electromagnetic bearing |
| EP0563928A2 (en) * | 1992-04-01 | 1993-10-06 | Ebara Corporation | Magnetic bearing apparatus |
| US5300843A (en) * | 1992-11-02 | 1994-04-05 | General Electric Company | Fault tolerant active magnetic bearing |
| CN1104730A (en) * | 1993-11-17 | 1995-07-05 | 黄晓白 | ring magnetic suspension bearing |
| CN2783023Y (en) * | 2005-04-05 | 2006-05-24 | 西南交通大学 | No Magnetic field coupled electromagnetic bearing |
| CN1851389A (en) * | 2006-03-02 | 2006-10-25 | 南京航空航天大学 | Magnetic suspension bearing differential transformer type displacement sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1962114A (en) | 2007-05-16 |
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Application publication date: 20070516 Assignee: Nanjing CIGU Limited Corporation Assignor: Nanjing University of Aeronautics and Astronautics Contract record no.: 2017320000090 Denomination of invention: Process for producing axial magnetic bearing structure Granted publication date: 20081105 License type: Common License Record date: 20170317 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20191124 |