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Belt slipping detecting method and device for belt conveyor

A technology for belt conveyors and belt slippage, applied in conveyor control devices, conveyor objects, transportation and packaging, etc., can solve problems such as complex structure, belt slippage, belt crushing, etc., and achieve high response frequency, reliable work, The effect of low failure rate

Inactive Publication Date: 2014-09-10
河南永锦选煤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Belt slipping detecting method and device for belt conveyor
  • Belt slipping detecting method and device for belt conveyor
  • Belt slipping detecting method and device for belt conveyor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A belt conveyor belt slippage detection method, which realizes the detection steps of the belt conveyor belt slippage comprises:

[0024] 1) At least two sets of detection switches are fixedly installed on the bracket of the belt conveyor, and a stopper used in conjunction with the detection switch is provided on the inner edge of one end of the drive roller of the belt conveyor. The detection switch and the Corresponding to the stopper, it is installed on the outer frame of the driving drum;

[0025] 2) Taking each revolution of the drive drum as a cycle, set a time period t greater than the cycle time T, and use a counting or timing device to detect the output switch signals of the two sets of detection switches in real time;

[0026] 3) If the output switch signal sent by the detection switch is not detected within the time period t, it is judged that the belt is slipping, and an alarm or control signal is output through the delay relay.

Embodiment 2

[0028] The belt slip detection method of the belt conveyor described in this embodiment adopts the mode of parallel connection of two sets of detection switches, each parallel circuit is connected with an intermediate relay, and a time relay is connected in the control circuit of each intermediate relay, and it is completed in The output switch signals of two groups of detection switches are detected within the time period t, and the output contacts of the time relay are connected to an alarm circuit.

[0029] In the belt slipping detection method of the belt conveyor, the detection switch adopts a Hall proximity switch, a travel switch, an infrared sensor switch or a capacitance sensor switch, and whether the output switch signal of the detection switch reflects the running state of the drive drum.

[0030] The belt slipping detection method of the belt conveyor of the present invention uses the conduction delay and power-off delay characteristics of the time relay to set a ti...

Embodiment 3

[0033] see figure 1 , figure 2 , Figure 4 . A belt slipping detection device, comprising a detection switch, a DC24V intermediate relay, a time relay, and an alarm. The detection switches are at least two groups, powered by a switching power supply, and an intermediate relay is connected to each group of detection switch circuits. A time relay is connected in an intermediate relay control circuit, the control switch of the time relay is connected in parallel, and a time delay relay control circuit is connected, and the control switch output signal of the time delay relay is connected to an alarm or a belt conveyor power-off control circuit . The block used in conjunction with the detection switch is set on the inner edge of one end of the belt conveyor drive roller, and the detection switch is fixed on the belt conveyor frame through the mounting support. The detection switch and the detection block The blocks correspond to and are distributed on the contour line of the ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G43/04
Inventor 赵露露张伟峰葛志勇张云朝信延才陈云孙涛
Owner 河南永锦选煤有限公司
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