A large bearing ring single magnetic pole unit fork type demagnetization device and demagnetization method

A bearing ring, single magnetic pole technology, applied in the direction of magnetic objects, electrical components, circuits, etc., can solve the problems of reduced bearing quality and life, poor demagnetization effect, large consumption, etc., to improve machining accuracy, avoid uneven demagnetization and The effect of leakage demagnetization and prolonging the service life

Inactive Publication Date: 2011-12-21
LUOYANG BEARING SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above-mentioned method for demagnetizing large bearing rings has extremely low efficiency, consumes a lot of manpower, physical strength and time, and has poor demagnetization effect
Therefore, the phenomenon of local leakage or abandonment of demagnetization of large bearing rings often occurs, which will greatly reduce the quality and life of the bearing

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  • A large bearing ring single magnetic pole unit fork type demagnetization device and demagnetization method
  • A large bearing ring single magnetic pole unit fork type demagnetization device and demagnetization method

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Embodiment Construction

[0018] like figure 1 , 2 As shown in , the demagnetization device of the present invention includes a single magnetic pole unit 7, a guide wheel group A4, a guide wheel group B5, and a guide rail 6; the single magnetic pole unit 7 includes a fork-type magnetic core 1, a coil A2, and a coil B3, and the coil A2 and the coil B3 is set on the two opposite magnetic poles of the fork-type magnetic core 1 respectively, the coil A2 and the coil B3 are connected in series, and its lead wire is connected to the AC power supply, the fork-type magnetic core 1 is made of a C-shaped structure by stacking silicon steel sheets; single magnetic pole The unit 7 is placed on the guide rail 6. The guide wheel group A4 and the guide wheel group B5 are respectively arranged on both sides of the single magnetic pole unit 7 to support the demagnetized large bearing ring 8. The diameters of the two guide wheel groups are the same, and the center of the circle is On the same level, the operation is sy...

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Abstract

The invention discloses a single magnetic pole unit fork type demagnetization device and a demagnetization method for a large bearing ring. The device comprises a single magnetic pole unit, a guide wheel group A, a guide wheel group B, and a guide rail; Group A and guide wheel group B are respectively arranged on both sides of the single magnetic pole unit. Its demagnetization method: turn on the power supply, coil A and coil B of the single magnetic pole unit flow current, the magnetic force line passes through the iron core and the magnetic gap to form a closed magnetic circuit, and a strong magnetic field is generated between the two poles of the fork-type magnetic core, which is synchronized The demagnetized bearing ring supported by the running guide wheel group A and guide wheel group B runs in reverse with the guide wheel group A and guide wheel group B, and pushes the magnetic pole unit forward along the guide rail. At this time, the bearing ring wall is in the fork After passing between the two poles of the type magnetic pole unit, after each part passes through the strong alternating magnetic field between the two magnetic poles in sequence, the directional magnetic domains of the large bearing ring are disrupted, and the magnetism can be cleared. The invention has high demagnetization quality, high working efficiency and low labor intensity.

Description

Technical field: [0001] The invention belongs to the technical field of bearings, and in particular relates to a demagnetization device and a demagnetization method for a single magnetic pole unit of a large bearing ring. Background technique: [0002] In the process of producing large bearings, whether it is the end face grinding of large bearing rings or the grinding of the outer and inner grooves or the inner diameter grinding, the grinding process related to electromagnetic is often used: for example, in the surface grinding The ring is attracted to the magnetic disk, and the strong magnetic force attracts the bearing ring, and then it is processed in this state. After grinding, the residual magnetism of the ferrule is very large. If the residual magnetism is not removed, the residual magnetism on the ferrule will attract a lot of iron filings, which will have a direct impact on the processing accuracy of the next process, and will also make the instrument detection valu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F13/00
Inventor 席颖佳李洛张娟娟方芳李红
Owner LUOYANG BEARING SCI & TECH CO LTD
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