A longitudinal tear-seeking roller device for belt conveyors

Abstract

The invention discloses a longitudinal tearing crack-seeking roller device of a belt conveyor, which comprises a fixed frame (1) of the belt conveyor, a crack-seeking roller is arranged on the fixed frame (1), and a crack-seeking roller is mounted on the roller (2). A pressure-touch button (3) connected to the micro switch (4) is provided at the position corresponding to the crack-seeking roller (21); a connecting shaft (22) is provided at each of the two ends of the roller (2), and each of the The connecting shaft (22) is provided with an elastic supporting force device, and a conductive slip ring (5) is arranged on the elastic supporting force device; the micro switch (4) and the conductive slip ring (5) are all connected with the control system electrical connection. The present invention is equipped with a crack-seeking roller with an elastic supporting force device. Under the action of elasticity, the crack-seeking roller pushes into the gap of the tape, and the tape on both sides of the gap is pressed on the sensor button, and an alarm is sent through the signal transmission of the micro switch, so as to stop in time. Achieve tape longitudinal tear protection.

Description

technical field [0001] The invention relates to the technical field of detection and protection devices for belt conveyors, in particular to a longitudinal tear-seeking roller device for belt conveyors. Background technique [0002] At present, the transportation of bulk materials (such as coal and iron ore) in mines, docks and other places is mainly carried by belt conveyors. Because coal and iron ore are often mixed with iron and other sharp debris during the mining process, sharp objects may penetrate the tape during transportation, and large pieces of material may be stuck at the feeding point or transfer point, resulting in tape Due to the fast running speed of the belt conveyor, which has reached 5 m / s, once the longitudinal tear of the belt occurs, the entire belt may be completely torn within a few minutes, resulting in huge economic losses. [0003] Most domestic enterprises mainly adopt the material leakage type, that is, the tape is torn longitudinally, and the m...

AI Technical Summary

Problems solved by technology

Because coal and iron ore are often mixed with iron and other sharp debris during the mining process, sharp objects may penetrate the tape during transportation, and large pieces of material may be stuck at the feeding point or transfer point, resulting in tape In the event of accidents such as wear and tear, due to the high speed of the belt conveyor, which has reached 5 m / s, once the longitudinal tear of the belt occurs, the entire belt may be completely torn within a few minutes, resulting in huge economic losses.

[0003] Most domestic enterprises mainly adopt the material leakage type, that is, the tape is torn longitudinally, and the material on it leaks through the gap, and accumulates on the tray, or falls on the bottom tape. When the leaked material reaches a certain weight, press the switch. This type of detection device can only work when the tape is torn and there is material leakage. Due to the increase in the production capacity of the mine, the conveyor belt is widened and thickened. Even if the tape is torn through, there is still no material leakage. Such detection devices do not work, and when the feeder feeds a large amount of material, or when the tape deviates, scattered materials may fall onto the tray, causing malfunction

[0004] In the world, the induction type tape longitudinal tearing device is mainly used. This device needs to pre-embed closed coils at a certain distance when producing tapes. When the conveyor belt is running, it can judge whether the tape is intact or not Longitudinal tear failure occurs, this type of detection device needs to use special tape, which requires a large investment

In addition, repeated bending of the tape in the groove and reel, and the pre-embedded closed coil, will cause an open circuit and malfunction.

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