Gamma ray non-destructive testing cable concealed section detection device and method for realizing detection

Abstract

The invention discloses a gamma ray nondestructive inspection cable rope concealed section detection device. The detection device comprises a gamma ray inspection instrument and a probe detection crawling device formed by a steel structure support and a power drive mechanism, wherein the steel structure support comprises an upper half support and a lower half support, a semicircular front end plate and a semicircular rear end plate; the upper half support and the lower half support respectively consist of a drive screw rod, a guide rod, a pull rod, the semicircular front end plate and the semicircular rear end plate; the upper half support, the lower half support, the front end plate and the rear end plate are connected by bolts so as to form an integrity to surround a rope body; the drive screw rod I and the drive guide rod I of the upper half support are provided with a probe installation bracket for installing of the gamma ray inspection instrument probe; and the drive screw rod II and the drive guide rod II of the lower half support are provided with an optical sensing substrate bracket for installing of an optical sensing substrate. The device conveys the probe and the substrate of the gamma ray inspection instrument to a to-be-detected section so as to form effective detection, can accurately observe the position of a defect and the length and the width of the defect, and can directly record the detection result so as to facilitate storage for a long time.

Description

technical field [0001] The invention relates to the technical field of anchor cable detection, in particular to the technical field of non-destructive flaw detection for the concealed section of anchor cables. Background technique [0002] The cable anchorage area belongs to the hidden section of the cable. This section is where cable diseases are concentrated. Due to the limitation of space and other conditions, the current detection methods for this section are extremely limited; how to detect whether there is corrosion, Broken wires and other diseases and the extent of the disease are the focus and difficulty of cable inspection at present; ray inspection is to make use of the different transmission properties of various ray sources on materials and the attenuation of rays of different materials to make the negatives sensitive to blackness. different images to observe; if there is a defect in the local area of ​​the workpiece, it will change the attenuation of the object ...

AI Technical Summary

Problems solved by technology

[0003] Radiation detection can be divided into X-rays, γ-rays, high-energy X-rays, neutron ray detection, etc. Among them, the penetrating power of X-rays and γ-rays is stronger than other rays, and it has the property of making phosphors emit light, so this can be used The properties of X-rays or γ-rays make the measured object produce visible images to detect the internal defects of the object; at present, only a small number of projects at home and abroad use X-rays to detect the defects of cables. Anchorage area cannot be detected

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