Nondestructive testing device for engine compressor blade

Abstract

The invention relates to an engine compressor blade nondestructive testing device, which comprises a connecting rod, one end of the connecting rod is connected with a probe, the rod body part of the connecting rod is provided with a grab handle, the grab handle can slide on the rod body, and the probe can prevent the grab handle from sliding out; the probe comprises a detection coil and is used for detecting whether a current signal in the coil is changed or not; a detection surface is arranged on the probe; the detection surface is provided with an inclined groove part and an inclined angle part which are connected in a clamped mode, and a movable constraint is formed between the inclined groove part and the inclined angle part through a spring. According to the nondestructive testing device for the engine compressor blade, through the arrangement of the connecting rod, the probe and the grab handle, no surface pretreatment needs to be carried out on a detected object, a coupling agent does not need to be applied, and non-contact rapid detection is achieved; and the chute part and the bevel angle part are connected through the spring, so that convenient and rapid detection can be carried out without disassembly, cracks are successfully detected, and the nondestructive detection device for the engine compressor blade is sensitive in response and good in detection effect.

Description

technical field [0001] The invention belongs to the technical field of non-destructive testing, and in particular relates to a non-destructive testing device for an engine compressor blade. Background technique [0002] The establishment and development of the basic principles of eddy current testing technology originated from the discovery of early electromagnetics. In 1824, Gabe discovered that the copper plate would hinder the swing of the hanging magnet. In 1828, Foucault pointed out that eddy currents exist in a copper disk moving in a strong inhomogeneous magnetic field and are accompanied by thermal effects. But there are still many doubts. Until 1831, Faraday discovered the phenomenon of electromagnetic induction, that is, a changing magnetic field can generate an electric field, and summed up the law of electromagnetic induction. Until now, the phenomenon of electromagnetic induction has been used to explain the important objective laws on which the basic principl...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art, to provide a non-destructive testing device for engine compressor blades, to solve the problem of detecting the engine compressor blades in the prior art without disassembling the blades. The problem of inconvenient use of the detection of the front and back of the blade

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