Scanning device for rail seam inspection

Abstract

The invention discloses a scanning device for rail seam inspection. Two ends of a rectangular support frame (1) are provided with 'n' shaped fixing pins (7); two ends of a slide rail (2) are fixed on two ends of the rectangular support frame (1); a first probe case fixed mount (3), a second probe case fixed mount (4) and a third probe case fixed mount (5) are arranged on the slide rail (2) and can slide freely along the slide rail (2); two ends of the rectangular support frame (1) are provided with a rotating shaft (11) of an inhaul cable respectively; and the inhaul cable (6) is winded on two rotating shafts (11) of the inhaul cable along the direction of the slide rail. The scanning device has a simple structure and convenient operation, and adopts mechanical scanning to replace the prior manual inspection of seam inspection, thereby greatly improving the accuracy of rail inspection, and realizing inspections on a plurality of seams.

Description

technical field [0001] The invention relates to a scanning device for flaw detection of track welds. Background technique [0002] At present, domestic railway bureaus generally use two methods to detect welds. One is to scan the welds with a single probe. This scanning method cannot find the plane defects of the weld rail waist, which is likely to cause missed inspections; The second is to use a multi-probe array scanning method. Although this scanning method is theoretically feasible, it is easy to cause missed detection due to the rough detection surface and poor coupling. [0003] At the same time, in the traditional flaw detection method, manual scanning is used, that is to say, scanning is performed by hand-held scanning equipment. The manual scanning method is inaccurate in positioning and the pressure on the probe is uneven, which is prone to missing detection. Contents of the invention [0004] The object of the present invention is to provide a track weld seam f...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic railway bureaus generally use two methods to detect welds. One is to scan the welds with a single probe. This scanning method cannot find the plane defects of the weld rail waist, which is likely to cause missed inspections; The second is to use multi-probe array scanning method. Although this scanning method is theoretically feasible, it is easy to cause missed detection due to rough detection surface and poor coupling.

[0003] At the same time, in the traditional flaw detection method, manual scanning is used, that is to say, scanning is performed by hand-held scanning equipment. The manual scanning method is inaccurate in positioning and the pressure on the probe is uneven, which is prone to missing detection.

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