Ultrasonic automatic detection system of tubing with variable wall thickness and step

Abstract

The invention relates to an ultrasonic automatic detection system of tubing with a variable wall thickness and step, and belongs to the detection technical field. The detection system comprises a track, a computer measurement and control system, a carrier roller and a carrier roller transmission device, wherein traveling wheels are arranged between the track and an automatic detection trolley, a fault detection water tank is arranged under the track, the carrier roller is arranged at the bottom of the detection water tank and connected with a reducer output shaft of the carrier roller transmission device, and the automatic detection trolley crosses on the track. According to the detection system, a water immersion ultrasonic method and a vortex method are adopted to automatically detect the tubing with the variable wall thickness and step, 100% detection is achieved through tubing rotation and linear movement of a probe along with a drive device, sound incident angles needed by detection is reached through drive and adjustment of the probe, and the computer technology is used for controlling a mechanical system, detection processes and data processing and output.

Description

technical field [0001] The invention relates to an ultrasonic automatic detection system for pipes with variable wall thickness and variable steps, belonging to the technical field of detection. Background technique [0002] For pipes with variable wall thickness and variable steps, the contact method is used for ultrasonic flaw detection, such as the Chinese patent (publication number CN201653987U), the utility model name is a gantry traveling flaw detector, application number: 201020134675.2, which discloses a gantry traveling flaw detector , which is characterized in that it includes a track, a portal frame, a travel wheel, a driving gear, a travel reducer, a roller, a weld probe holder, a base metal probe holder, an ultrasonic base metal flaw detector, an ultrasonic weld flaw detector, and a flaw detector. Machine control system, the rails are arranged in parallel on the base frame, there are idlers between the rails, the idler is connected with the idler transmission de...

AI Technical Summary

Problems solved by technology

[0004] 2. There are the same problems as the water immersion method when the contact method ultrasonic is used to detect the variable wall thickness and variable step pipe. In addition, there are still errors in the positioning and quantification of the contact method detection, so it is difficult to accurately locate and quantify

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