Rigid cage guide defect detection method and detection method based on laser light screen scanning

Abstract

The invention discloses a rigid cage guide defect detection device based on laser light screen scanning. The detection device comprises a driving device, a rotary arm, an encoder, a laser device and a camera, wherein the rotary arm is arranged on the upper end face of a No.2 cage guide by virtue of a support and is close to the inner side face of the No.2 cage guide; the rotary arm is rotatably arranged with the support by virtue of a shaft and is driven by the driving device; the encoder is arranged on the shaft; and the laser device and the camera are arranged in the front of the rotary arm. By locating the laser device at the top end of the cage guide and by scanning the cage guide in a perpendicular direction by virtue of a laser light screen, and by shooting through the camera and splicing images, an image spectrum of the cage guide varying with height can be obtained, so as to rapidly and accurately determine the type and the position of a cage guide defect; the detection device is applicable to the defect detection of a vertical shaft hoisting rigid cage guide, and the detection device is simple in structure, reliable and portable, high in data accuracy, wide in practicability and remarkable in economic benefit.

Description

technical field [0001] The invention relates to a rigid tank road defect detection device and method based on laser light curtain scanning, which are suitable for coal mine vertical shaft lifting. Background technique [0002] Shaft hoisting is the main form of coal mine production, and rigid tank road is an important part of the shaft hoisting system. The tank road is the running track of the hoisting container (skip and cage) in the shaft hoisting, and its health status determines the stability and safety of the hoisting container during the hoisting process. Due to wellbore deformation, installation errors and frictional impact damage, rigid tanks are prone to defects such as deformation and bending, causing warping and protrusions on the rigid tanks, posing a major threat to the safe operation of the lifting container, and even causing tanks to be stuck and other serious accidents. [0003] The traditional tank road detection mostly uses inclinometer, steel wire suspen...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the current detection of rigid tanks mainly has the following problems: first, the use of traditional tank detection methods takes up more manpower and production time; Transmission and other issues, under the influence of the harsh environment of the wellbore and the interference of infinite transmission attenuation in the narrow and long space, will bring large maintenance and production costs. The accuracy and reliability of the data collected by the sensor will have a serious impact, affecting the accuracy of tank inspection

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