Belt slipping detecting method and device for belt conveyor

Abstract

The invention relates to belt slipping detection for belt conveyors and discloses a belt slipping detecting method for a belt conveyor. The method includes the steps of firstly, detecting switches and a retaining block are fixed on the rotary drum and the support of the belt conveyor; secondly, a time period t is set by using each rotation circle of the transmission rotary drum as a cycle; the output signals of two groups of detecting switches are monitored in real time, and if the output signals transmitted by the detecting switches cannot be detected in the time period t, a user can judge that belt slipping occurs. A belt slipping detecting device comprises the detecting switches, intermediate relays, time relays and an alarm. The detecting switches are powered by a switch power supply. One intermediate relay is connected into each group of detecting switch loop. One time relay is connected into each intermediate control loop. The control switches of the time relays are parallelly connected and connected into a delay relay control loop. The control output signals of a delay replay is connected with the alarm or the power-off control loop of the belt conveyor.

Description

technical field [0001] The invention relates to a detection method and a detection control device for belt slippage of a belt conveyor. Use the proximity switch to detect the running status of the conveyor drive roller. Background technique [0002] Belt conveyors are widely used in material transfer in fields such as agriculture, chemical industry, electric power, coal and mines. In order to prevent safety accidents caused by conveyor failures, technicians designed deviation protection and pull rope switch devices. However, during the operation of the conveyor, due to the difference in the state and moisture content of the material, sometimes the belt will be crushed, causing the belt to slip and not work. This situation will cause the machine head motor to drive the machine head drum to run idly, consuming electric energy for no reason. But it is important to note that if the belt stalls to cause material to accumulate, in different situations, different serious consequ...

AI Technical Summary

Problems solved by technology

However, during the operation of the conveyor, due to the difference in the state and moisture content of the material, sometimes the belt will be crushed, causing the belt to slip and not work

This situation will cause the machine head motor to drive the machine head drum to run idly, and consume electric energy for no reason.

But it is important to note that if the belt stalls to cause material to accumulate, in different situations, different serious consequences may occur

[0003] At present, technical personnel have proposed detection and alarm devices for belt slippage. The detection and judgment methods are different, and the product structures are also different, but most of them have complex structures and high costs.

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