Steel rail appearance geometric dimension and surface defect detection device

Abstract

The present invention discloses a steel rail appearance geometric dimension and surface defect detection device and belongs to the railway management technical field. The steel rail appearance geometric dimension and surface defect detection device comprises a measuring device, a cabinet and a console; the measuring device comprises a rigid support, a measuring cross beam, laser sets and steel rail four-directional locators; the laser set A, the laser set B and the laser set C are arranged on the rigid support along the entering direction of a steel rail; the steel rail four-directional locator I is arranged at the right side of the laser set A; the steel rail four-directional locator II is arranged between the laser set A and the laser set B; the steel rail four-directional locator III is arranged between the laser set B and the laser set C; the steel rail four-directional locator IV is arranged at the left side of the laser set C; the cabinet is connected with the measuring device; and the console is connected with the cabinet. According to the steel rail appearance geometric dimension and surface defect detection technology, the three sets of lasers, namely, eight two-dimensional laser sensors, are adopted to collect the contour data of the steel rail.

Description

technical field [0001] The invention relates to the technical field of railway management, in particular to a rail appearance geometric dimension and surface defect detection device. [0002] Background technique: [0003] At present, high-speed railways adopt the track laying form of seamless rails. The straightness of welded joints of seamless rails will directly affect the straightness of rails. Qualified rails on the one hand increase the difficulty and cycle of fine adjustment of the rails, on the other hand it is difficult to ensure the long-term stability of the rails. Therefore, the straightness of the welded part of the seamless rail is an important factor to ensure the overall straightness of the seamless line. In the welding operation of seamless rails, the appearance and geometric dimensions of the rails, especially the rail top width, rail bottom width, rail height, straightness and twist, are important factors affecting the straightness of the rail after weldin...

AI Technical Summary

Problems solved by technology

[0005] 2) Straightness and twist of the rail ends: the top flatness, side straightness or twist of the two rail ends welded together directly affects the straightness and twist of the welded rails, which It will increase the workload of grinding after welding, and at the same time put forward higher requirements for the straightening process after welding, increase the straightening cycle, and will also reduce the quality of the finished rail

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