Belt conveyor longitudinal tear detector and detection method

Abstract

The invention relates to a belt conveyor longitudinal tear detector. On the basis of the characteristic that the overall width of the belt correspondingly changes when the longitudinal tear of the belt occurs, a laser positioning technology and an ultrasonic ranging technology are utilized to measure whether the longitudinal tear of the belt occurs and to implement alarm and stop of the belt. On the basis of the belt stress distribution characteristics, a specially designed belt offsetting bracket can pull the belts on the two sides apart to increase the width change, so that the longitudinal tear can be detected more easily. The detection system provided by the invention is composed of a belt offsetting bracket, an ultrasonic sensor, a data processing unit and a computer terminal alarm display, wherein the ultrasonic sensor detects the overall width of the belt; the microprocessor acquires the width data and transmits the width data to the computer terminal through a communication interface, and the computer judges whether the width exceeds a preset value; and if the width exceeds the preset value, the computer terminal sounds the alarm and stops the belt. The historical data can be stored for two years. The detection system provided by the invention not only can prevent the longitudinal tear of the belt conveyor, but also can detect the offsetting and damage condition of the belt. The detection system provided by the invention can work independently or be combined with an existing protection system.

Description

technical field [0001] The present invention relates to a belt conveyor detector and a detection method, in particular to a device that can detect accidents at the initial stage of belt conveyor longitudinal tearing and implement an alarm to avoid large-scale damage to the belt Belt conveyor longitudinal tear detector and detection method. Background technique [0002] Belt conveyors are widely used in ports, mines, steel mills, power plants and other fields. The conveyor belt is an important part of the belt conveyor. The conveyor belt mainly includes ordinary canvas core belts, synthetic fiber core belts, steel rope core belts, etc. With the development of belt conveyors towards high speed, large scale, ultra-long distance, and large inclination angle, steel cord belts are also more and more widely used. Since steel cord belts are expensive and are often used in high-speed, long-distance situations, once the belt is torn in the longitudinal direction, that is, the belt t...

AI Technical Summary

Problems solved by technology

[0007] The embedded method detection device has great limitations in practical application: first, this type of protection device is complex in process and high in cost; second, it cannot be applied to the detection of a large number of belts that have been installed and running; third, due to the long-term Continuous movement will inevitably produce continuous stress of rolling and shearing, which will cause metal wires, coils or other embedded materials to suffer wear and tear, resulting in misjudgment of detection

However, in a sense, since there is a compatibility problem between the insert and the rubber, if it is not handled properly, it will reduce the strength of the belt

4. Since the detection substance is embedded in the belt, higher requirements are put forward for the maintenance of the belt user

[0013] In summary, there is still no ideal detection method and practical device that can effectively prevent longitudinal tearing.

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