Pull-line scanning device

Abstract

The invention relates to a pull-line scanning device. The device comprises a probe scanner and a pull-line assembly located on the probe scanner. The pull-line assembly comprises a first motor, a second motor, a first pull-line and a second pull-line. One end of the first pull-line is wound on the first motor. One end of the second pull-line is wound on the second motor. The other ends of the first pull-line and the second pull-line are connected with the probe scanner respectively. When the device is used, the first motor drives the first pull-line to extend or shorten, and the second motor drives the second pull-line to extend or shorten, thereby driving the probe scanner to move. Compared with the prior art, the pull-line scanning device provided by the invention has the advantages of simple structure, large probe moving space, more comprehensive detection range, fast probe moving speed and improved detection efficiency. A fan and a pressure sensor are arranged on a probe fixing base. The fan matches the pressure sensor, so that a probe and a workpiece have appropriate pressure. The detection quality is good. The motors control the probe to accurately move.

Description

Technical field [0001] The invention relates to a scanning device, in particular to a pull-wire scanning device. Background technique [0002] In marine ships, special equipment, pressure vessels, boilers, long-distance pipelines and other fields, there are often horizontal and vertical welds that are several meters long that require non-destructive testing. In this type of vertical weld testing, the During manual inspection, the labor intensity of workers is high, and inspection and maintenance costs are too high. [0003] At present, magnetic wall-climbing robots are commonly used to detect vertical surfaces, but the existing magnetic wall-climbing robots are complex in structure and slow in movement, and need to solve a series of problems such as adsorption, driving, steering, and obstacle crossing, and magnetic wall-climbing robots When used to detect equipment with different surface conditions such as marine vessels, special equipment, pressure vessels, etc., the applicabilit...

AI Technical Summary

Problems solved by technology

[0002]In marine ships, special equipment, pressure vessels, boilers, long-distance pipelines and other fields, there are often horizontal and vertical welds that are several meters long that need to be nondestructively tested. In the inspection of weld seams with a length of several meters on the vertical surface, the labor intensity of workers is high when manual inspection is used, and the inspection and maintenance costs are too high

[0003]At present, magnetic adsorption wall-climbing robots are commonly used to detect vertical surfaces, but the existing magnetic adsorption wall-climbing robots are complex in structure and slow in motion. There are a series of problems such as steering and obstacle surmounting, and when the magnetic adsorption wall-climbing robot is used to detect equipment with different surface conditions such as marine ships, special equipment, and pressure vessels, the applicability is poor, and the surface trajectory data is difficult to fully record

[0004] Chinese patent CN201621272718.7 discloses a magnetic adsorption wall-climbing robot. The robot includes a chassis on which a front axle is fixed. A set of drive wheel assemblies that can be independently adjusted in speed. The drive wheel assembly is equipped with a magnetic adsorption unit. The guide wheel assembly is installed in the middle of the rear of the chassis. The guide wheel assembly is equipped with a magnetic adsorption unit. Keep at least two contact parts. The structure of the magnetic adsorption wall-climbing robot is complex. Due to the strong adsorption force of the magnetic adsorption unit, the stability of the guidance and steering is poor, the movement is slow during use, the detection takes a long time, and the movement track data is not fully recorded.

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