CN86206632U - Conjugate rotating magnetic field demagnetiser - Google Patents
Conjugate rotating magnetic field demagnetiser Download PDFInfo
- Publication number
- CN86206632U CN86206632U CN 86206632 CN86206632U CN86206632U CN 86206632 U CN86206632 U CN 86206632U CN 86206632 CN86206632 CN 86206632 CN 86206632 U CN86206632 U CN 86206632U CN 86206632 U CN86206632 U CN 86206632U
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- China
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- magnetic field
- demagnetizer
- rotating magnetic
- conjugate
- field
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Abstract
The utility model relates to a conjugate rotating magnetic field demagnetizer for machinery parts demagnetizing. The demagnetizing field of the conjugate rotating magnetic field demagnetizer is mainly formed by magnetic poles studded round demagnetizing space. The magnetic pole is composed of an iron core stacked with silicon steel sheets and a field coil. After three-phase alternating current is switched on, the conjugate rotating magnetic field demagnetizer generates rotating magnetic field. The demagnetization efficiency and quality of the conjugate rotating magnetic field demagnetizer are superior to a pulsating magnetic field or quadrature axis field form of demagnetizer.
Description
The invention relates to the invention of conjugation-type demagnetizer for rotary magnetic field.
Machine components are subjected to the magneticaction of magnechuck in grinding process, always leave certain remanent magnetism, and this remanent magnetism is harmful to often to product quality.In order to eliminate the remanent magnetism after the machine parts grinding, now the method that generally adopts is the parts that have remanent magnetism, by arteries and veins shake magnetic field or the friendship axle magnetic field with certain intensity, and produces the device in this magnetic field, the most universal with structural shapes such as water chestnut and air core coils again, what have also makes water-cooled.But reasons such as all poor because of cost height, demagnetization effectiveness, demagnetizer processing technology complexity are subjected to certain limitation using and promote.
The demagnetizer that the purpose of this invention is to provide a kind of rotating magnetic field is to overcome the weak point of above-mentioned demagnetizer.
The present invention is achieved in that around the inboard of a steel skeleton and is covered with magnetic pole that magnetic pole is made up of iron core and magnet exciting coil that silicon steel sheet changes, is connected by the iron yoke between the iron core.The quantity of magnetic pole is generally six or six integral multiple.An enough big demagnetization space is arranged between magnetic pole.After feeding three-phase alternating current, demagnetizer just produces rotating magnetic field.When the machine components that have remanent magnetism pass through the demagnetization space lentamente, under the effect of rotating magnetic field, because the orbital motion of electronics and spin property, be easy to upset aligning of its inner corners momentum, make magnetic moment arrange chaotic, thereby obtain demagnetization effectiveness preferably with different remanence directions.
Major part of the present invention is that demagnetizing field is a rotating magnetic field, if mix annexes such as general electromechanical equipment switch-box commonly used, control board, shell, has just formed demagnetizer.Describe embodiments of the invention below in conjunction with accompanying drawing, Fig. 1 is the cutaway view of demagnetizing field magnetic pole of the present invention, and Fig. 2 is the cutaway view along Figure 1A-A tangent plane.This demagnetizing field is to change with silicon steel sheet by six groups that are installed in around the demagnetization space 1
Shape 4 and 12 magnet exciting coils 3 unshakable in one's determination produce, six iron yokes 2 are connected the middle part of six groups of iron cores 4, constituted the conjugation portion of two rotating magnetic fields, two parts before and after iron yoke 2 is divided into 12 coils 3, produce an independently rotating magnetic field separately, can distinguish or use this two magnetic fields simultaneously by control board.Fig. 3 is the winding wiring schematic diagram of a demagnetizing field of the present invention.Coil 3 is to concentrate winding, and every two relative coils 3 constitute a phase winding, adopts the heteropolarity method of playing a reversed role to connect, and has three phase windings.A, B, C are the head ends of every phase winding, and X, Y, Z are the ends of every phase winding, and three phase windings are done Y-connection, and its power supply is a three-phase alternating current.Adopt the demagnetizer of this structure, as long as parts are in the time about 0.5 minute, and single or batch passes through the demagnetization space, and remanent magnetism just can be eliminated.
Claims (4)
1, a kind of conjugation-type demagnetizer for rotary magnetic field that is used for machine components demagnetizations, it is characterized in that magnetic pole 5 be installed in demagnetization space 1 around, the quantity of magnetic pole 5 is integral multiples of six.
2,, it is characterized in that magnetic pole 5 is made up of iron core 4 and magnet exciting coil 3 that silicon steel sheet changes according to the described demagnetizer of claim 1.
3,, it is characterized in that unshakable in one's determination 4 middle part is connected with iron yoke 2 according to claim 1,2 described demagnetizers.
4, according to claim 1,2 described demagnetizers, it is characterized in that magnet exciting coil 3 is to concentrate winding, every phase winding adopts the heteropolarity method of playing a reversed role to connect, and used power supply is a three-phase alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86206632 CN86206632U (en) | 1986-09-06 | 1986-09-06 | Conjugate rotating magnetic field demagnetiser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86206632 CN86206632U (en) | 1986-09-06 | 1986-09-06 | Conjugate rotating magnetic field demagnetiser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86206632U true CN86206632U (en) | 1987-08-19 |
Family
ID=4809231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86206632 Ceased CN86206632U (en) | 1986-09-06 | 1986-09-06 | Conjugate rotating magnetic field demagnetiser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86206632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971775B (en) * | 2006-01-24 | 2011-11-16 | 吴红兵 | Electromagnetic feedback filter wave and magnetic field structure to degauss moving objects |
| CN101719417B (en) * | 2009-10-19 | 2012-10-03 | 金浦威恩磁业(上海)有限公司 | Radial orienting method and device of ring-shaped anisotropic magnet |
-
1986
- 1986-09-06 CN CN 86206632 patent/CN86206632U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971775B (en) * | 2006-01-24 | 2011-11-16 | 吴红兵 | Electromagnetic feedback filter wave and magnetic field structure to degauss moving objects |
| CN101719417B (en) * | 2009-10-19 | 2012-10-03 | 金浦威恩磁业(上海)有限公司 | Radial orienting method and device of ring-shaped anisotropic magnet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |
Termination date: 19880302 |
|
| CE01 | Termination of patent right |