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Two magnetic route structure of large-stroke electromagnetic vibration

A technology of electromagnetic vibration and large stroke, applied in the direction of fluid using vibration, etc., can solve the problems of increasing non-uniformity of magnetic induction intensity, decreasing output electromagnetic force of vibrating table, and easily distorted waveform, so as to improve the utilization rate of magnet, The effect of uniform magnetic field and improved distortion

Active Publication Date: 2010-03-24
ZHEJIANG UNIV
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Problems solved by technology

For the electromagnetic vibrating table with a large stroke, it is required to have a longer air gap length. If the magnetic circuit structure of the traditional electromagnetic vibrating table is adopted, the magnetic induction intensity will decrease with the increase of the stroke, and the unevenness of the magnetic induction intensity will also increase. In turn, the output electromagnetic force of the vibrating table is reduced, and the waveform is prone to distortion

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  • Two magnetic route structure of large-stroke electromagnetic vibration

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings.

[0011] refer to figure 1 , the double magnetic circuit structure of the large-stroke electromagnetic vibrating table includes the first magnet 5, the first central magnetic ring 6-1, the central magnetic pole 3, the second central magnetic ring 6-2 and the second magnet 9, which are sequentially connected by the coaxial line, In the illustrated example, the first magnet and the second magnet are permanent magnets; the first central magnetic ring, the second central magnetic ring, the central magnetic pole, the outer magnetic pole, the shell and the positioning base are all made of pure iron with high magnetic permeability . The first magnet 5 and the second magnet 9 are respectively fixed on the positioning base 1 fastened to the housing 8 by non-magnetic conductive bolts 2, and the housing 8 and the positioning base 1 can be connected by cold sleeve or splicing. A c...

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Abstract

The present invention relates to a double magnetic path structure of large-stroke electromagnetic vibration table. Said double magnetic path structure includes coaxially successively-connected first magnetic body, first central magnetic ring, central magnetic pole, second central magnetic ring and second magnetic body. Said first magnetic body and second magnetic body are respectively fixed in theouter shell interior, a cylindrical coil and an outer magnetic pole are coaxially cover-mounted on the exterior of central magnetic pole, and two ends of said outer magnetic pole are fastened with outer shell end port. Said invention also provides the working principle said double magnetic path structure and its concrete operation method.

Description

technical field [0001] The invention relates to a magnetic circuit structure of an electromagnetic vibrating table, in particular to a magnetic circuit structure applied to a large-stroke electromagnetic vibrating table. Background technique [0002] The magnetic circuit structure of the traditional electromagnetic vibrating table is composed of a single permanent magnet or exciter installed in the soft iron magnetizer, a central magnetic pole and an air gap. The energized coil in the air gap is subjected to electromagnetic force to generate motion. proportional to the size of the intensity. For the electromagnetic vibrating table with a long stroke, it is required to have a long air gap length. If the magnetic circuit structure of the traditional electromagnetic vibrating table is adopted, the magnetic induction intensity will decrease with the increase of the stroke, and the unevenness of the magnetic induction intensity will also increase. In turn, the output electromagn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B1/04
Inventor 何闻韩冬贾叔仕
Owner ZHEJIANG UNIV
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