A feeding structure for steel pipe flaw detection

Abstract

A feeding structure for steel pipe flaw detection is disclosed. The structure includes a steel pipe transmission device for driving a steel pipe to move along the axial direction and a steel pipe feeding straightening device arranged at the feeding end of the steel pipe transmission device. The structure is characterized in that the steel pipe feeding straightening device comprises straightening rollers arranged in pairs; the circumferential surfaces of the straightening rollers have an arc shape with a concave middle; and two straightening rollers in each pair of the straightening rollers arearranged at two sides at the left-right direction of a steel pipe movement path, with axes of the two straightening rollers being staggered and inclined along the steel pipe movement direction, so that the two straightening rollers are respectively in contact with the steel pipe surface in a symmetrical spiral line manner. The feeding structure can achieve straightening during feeding before steel pipe flaw detection to improve flaw detection effects and has a simple structure and good straightening effects.

Description

technical field [0001] The invention relates to a steel pipe flaw detection device; in particular, it relates to a steel pipe flaw detection feeding part structure. Background technique [0002] Steel pipe is an important steel material widely used. Due to various factors in the production process of steel pipe, defects such as longitudinal cracks, transverse cracks, folding, and delamination often exist on the steel pipe wall. If the steel pipe is defective, it will break during use and cause accidents, and even cause serious consequences, which may cause major economic losses or even casualties. For this reason, steel pipes for important purposes require complete non-destructive testing equipment to conduct online flaw detection on steel pipes. To ensure the quality of steel pipes leaving the factory, the existing flaw detection methods mainly include ultrasonic flaw detection and eddy current flaw detection inspection methods. The existing steel pipe flaw detection line ...

AI Technical Summary

Problems solved by technology

In the actual automatic flaw detection process, because the steel pipe is in the transmission process of detection, the probe of the existing ultrasonic automatic flaw detection device is usually directly fixed on the probe bracket, and the probe bracket is fixedly connected with the flaw detection water tank, because there are many types of steel pipes, The fixed setting of the probe cannot meet the flaw detection requirements of various types of steel pipes

At the same time, in the process of steel pipe flaw detection, when the defect position of the steel pipe passes through, it is easy to touch the probe and cause the probe to vibrate and warp, resulting in a change in the amplitude of the defect signal. If it cannot be adjusted in time, it will also affect the reliability and accuracy of flaw detection. sex

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