Manual-automatic integrated anchor rod nondestructive testing excitation device and use method

Abstract

The invention relates to the technical field of nondestructive testing, and particularly discloses a manual-automatic integrated anchor rod nondestructive testing vibration excitation device and a using method.The vibration excitation system comprises a small motor fixed to a vibration exciter shell, a shifting arm rotating disc fixedly connected to the output end of the small motor and an actuating arm rotationally matched with the shifting arm rotating disc; two crescent convex lines are arranged on the shifting arm rotating disc in a central symmetry mode, a clamping groove is formed in the side, close to the shifting arm rotating disc, of the actuating arm, a force adjusting rod used in cooperation with the crescent convex lines is installed in the clamping groove in a sliding mode, and the excitation system drives the actuating arm to rotate to impact the firing pin; the signal receiving system comprises a positioning column, a stress wave signal receiving sensor fixed on the positioning column, a firing pin inserted in the middle of the positioning column and used for receiving the collision of the end part of the actuating arm, and a reset spring sleeved outside the firing pin, and one end of the reset spring is fixed on the positioning column; the problems that in existing anchor rod stress wave nondestructive testing, excitation is not stable, the excitation strength is not consistent each time, and the detection result is affected are solved.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing, and specifically discloses a manual-self-integrated non-destructive testing vibration excitation device for a bolt and a use method thereof. Background technique [0002] In the project, a large number of new anchors and existing anchors have defects inside the anchors due to construction, environment and other factors, which make the anchoring structure of the anchors hidden, and pose a threat to life, health and engineering safety. Eliminate hidden dangers. Due to its own characteristics of large aspect ratio and concealment, it is difficult to comprehensively and accurately detect the internal defects of the anchor rod structure by traditional methods. Therefore, the non-destructive testing method based on stress wave emerges as the times require, which can excite the anchor rod. It is one of the joint links of stress wave nondestructive testing. [0003] At present, there ar...

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Problems solved by technology

[0004] In view of this, in order to solve the problem of unstable excitation existing in the existing stress wave non-destructive testing of anchor bolts, each excitation strength is inconsistent, which affects the detection results, a manual-automatic integrated non-destructive inspection excitation device for bolts and The method of use has the advantages of stable excitation, which ensures that the excitation force is consistent each time in the detection, and can reduce the interference on the detection results; it also has the characteristics of manual and automatic integration, excitation / reception signal integration, portability, and simple and easy operation.

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