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Negative-pressure uniform coating crossed yoke method magnetic powder detection crawling device

A technology of magnetic particle detection and crawling device, applied in the direction of injection device, liquid injection device, material magnetic variable, etc., can solve the problems of multiple detection dead spots, uneven coverage, slow speed of magnetic suspension, etc. Comprehensive, well-designed effects of tracked images

Inactive Publication Date: 2018-09-28
郑逸凡
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a cross-yoke method magnetic particle detection creeping device with uniform negative pressure coating to solve the problem that the magnetic suspension flows through the surface of the magnetic powder at a relatively slow speed and the covered part is relatively uneven. , so that the magnetic powder that is not contaminated with the magnetic suspension can not detect the surface flaws under the detection of the flaw detector, which has more problems of detection dead angles

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  • Negative-pressure uniform coating crossed yoke method magnetic powder detection crawling device
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  • Negative-pressure uniform coating crossed yoke method magnetic powder detection crawling device

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Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0024] see figure 1 , the present invention provides a crawling device for cross-yoke method magnetic particle testing with negative pressure and uniform coating: its structure includes an external expansion shell 1, a supplementary light 2, a cross-yoke type magnetic particle flaw detector 3, a frame 4, and a movable wheel 5 , liquid spray pot 6, negative pressure ring 7, magnetic plate placement column 8, drive motor 9, the two ends of the negative pressure ring 7 are movably connected to the left and right ends of the outer shell 1, and the magnetic plate placement column 8 is installed In the middle of the negative pressure ring 7 and do not intersect, the drive motor 9 is located below the magnetic plate placement column 8 and is mechanicall...

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Abstract

The invention discloses a negative-pressure uniform coating crossed yoke method magnetic powder detection crawling device. The negative-pressure uniform coating crossed yoke method magnetic powder detection crawling device structurally comprises an outer expanding shell, a light supplementing lamp, a crossed yoke type magnetic powder flaw detector, a machine frame, a movable wheel, a liquid spraying kettle, a negative pressure ring, a magnetic plate placing column and a driving motor. The negative pressure ring is provided, so that when magnetic suspension is sprayed to the surface of the magnetic powder, absorbing forces generated by a left absorbing ring and a right absorbing ring at the two ends can absorb the magnetic suspension towards two sides and the dispersing speed of the magnetic suspension can follow the moving speed of the device; furthermore, small air holes in a left adsorbing plate at the left end are dense, an air net is provided and negative pressure machines at the two ends can control output voltage, so that the adsorbing force generated at the left end is large, the dispersing speed of the magnetic suspension towards the left end can follow the displacement difference of the two ends, the magnetic suspension covers the magnetic powder uniformly, and the image tracked by the crossed yoke type magnetic powder flaw detector is more comprehensive.

Description

technical field [0001] The invention relates to a crawling device for magnetic particle detection, in particular to a crawling device for magnetic particle detection by cross yoke method with uniform negative pressure coating Background technique [0002] Cross yoke refers to the method of flaw detection using the synthetic magnetic field formed by the superposition of two-phase or multi-phase AC electromagnetic fields. The suspension is sprayed in the front, and the sprayed magnetic suspension covers the magnetic powder to be tested at a slow speed, and the covered area is uneven when it flows freely. Often, the area of ​​the magnetic powder covered by the magnetic suspension is not enough after the device passes through, which is easy to cause The dead angle of detection, the current technical consideration is not comprehensive, has the following disadvantages: [0003] The speed of the magnetic suspension flowing through the surface of the magnetic powder is relatively s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/84B05B9/00B05B9/04
CPCG01N27/84B05B9/00B05B9/04
Inventor 郑逸凡
Owner 郑逸凡
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