Structure identification method of vulcanized joints of steel wire rope core conveyer belt of coal mine

Abstract

The invention discloses a structure identification method of vulcanized joints of a steel wire rope core conveyer belt of a coal mine. The method comprises steps of 1, acquiring vulcanized joint magnetic flux leakage signals; 2, de-noising the vulcanized joint magnetic flux leakage signals; 3, selecting de-noising magnetic flux leakage sampling effective sequences; 4, carrying out signal smoothing processing; 5, acquiring a local extreme point of a magnetic flux leakage smooth signal z(i); 6, determining positions of a maximum value point and a minimal value point of the magnetic flux leakage smooth signal z(i); 7, removing interference abnormal local extreme points; and 8, identifying orders of the vulcanized joints of the steel wire rope core conveyer belt. According to the invention, the orders of the vulcanized joints of the steel wire rope core conveyer belt are judged through the quantity of effective maximum value points or effective minimal value points of the magnetic flux leakage signals of the vulcanized joints; the firm foundation is laid for quantitative detection of twitching of vulcanized joints of the steel wire rope core conveyer belt; the method is simple to operate, and easy to achieve and produces favorable effects; and the method has important meaning for prevention of occurrence of fracture accidents of the vulcanized joints of the steel wire rope core conveyer belt.

Description

technical field [0001] The invention belongs to the technical field of vulcanized joint structure identification, and in particular relates to a method for identifying the vulcanized joint structure of a coal mine steel cord conveyor belt. Background technique [0002] In coal production, coal mine steel cord belt conveyor is an important transportation equipment. The long-distance steel cord conveyor belt is formed by lapping vulcanized joints of multi-section steel cord conveyor belts. With the development of long-distance, large-capacity, and high-speed belt conveyors in coal mines in my country, joint fracture accidents occur from time to time. The consequences of the fracture of the core conveyor belt are very serious, which will not only cause huge economic losses to the coal mine, but also cause casualties, and cause great harm to the production and safety of the coal mine. The joint of the steel cord conveyor belt is the weakest link with the lowest tensile strength ...

AI Technical Summary

Problems solved by technology

The long-distance steel cord conveyor belt is formed by lapping vulcanized joints of multi-section steel cord conveyor belts. With the development of long-distance, large-capacity, and high-speed belt conveyors in coal mines in my country, joint fracture accidents occur from time to time. The consequences of the fracture of the core conveyor belt are very serious, which will not only cause huge economic losses to the coal mine, but also cause casualties, causing great harm to the production and safety of the coal mine

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