Belt sway switch is mainly used in metallurgy, electric power, coal rock, mining and chemical industry transportation system, is an indispensable sensor for automatic control of conveyor, this product can be used for conveyor belt deviation detection, prevent due to belt deviation caused by material overflow and other faults. This product uses aluminum die-casting shell with waterproof, anti-ash, shock-proof and other advantages, easy installation, reliable switching performance, widely used in conveyor belt. Purpose: Two-stage deviation protection function, deviation warning signal can be connected to the automatic adjustment device, used to correct the deviation and distortion of the belt. The stop signal can be realized by connecting the two-stage deviation to the control line. Belt Sway Switches are products used to detect the amount of belt deviation, which can automatically warn and stop the conveyor belt in case of deviation. Deviation switch has two levels of Angle, commonly used is: Angle: 10, 12, 20. Secondary angles are: 30, 35, 45.
Deviation switch accident prevention and cause analysis
1) Purchase qualified products confirmed by the state to avoid belt deviation accidents caused by insufficient manufacturing accuracy of equipment.
2) Pay attention to the installation dimensional accuracy in the installation process:
a. If the belt is found to be out of alignment at the drum during installation and debugging, the levelness and equality of the drum should be corrected. The installation of the transmission drum and steering drum requires that the overlap between the width line and the Central Line of the belt should not exceed 2mm, the perpendicularity between the axis line and the Central Line of the belt should not exceed two-thousandth of the drum width, and the levelness of the drum shaft should not exceed 0.3/1000.
b. If it is found that the belt always runs sideways in no-load, the roller support should be adjusted.
c. If it is found that the belt does not run off in no-load, but runs off to one side in heavy load, it indicates that the belt has biased load, and the position of the coal drain bucket should be adjusted.
3) Strengthen daily maintenance:
a. Timely remove coal dust from the main parts of the roller, roller and feeding place of the conveyor to prevent the coal dust on the roller and roller from causing the belt to deviate.
b. Timely adjust the deviation of belt in operation, check the wear of belt edges and joints, and replace and repair the problems in time.
4) Install the monitoring device of belt deviation, once the belt deviation will send a warning signal to remind the maintenance personnel to take measures.
Cause analysis of Belt sway switch
The belt sway swich is very common for belt conveyor to run out of alignment. Often occur off-track accidents, will affect the service life of the conveyor, serious shutdown accidents or may lead to casualties. There are three main reasons for belt deviation: first, the equipment itself, such as the cylinder cylindricity error is large, idler rotation is not flexible, the axis parallelism error of the driving drum and driven drum is large; Second, installation and debugging, such as roller, roller, frame installation does not meet the standard requirements, in addition, there is a deviation of the coal outlet position, resulting in the belt load deviation; Three is the maintenance, mainly due to the cleaning is not timely, the roller of the conveyor roller is stained with coal dust, resulting in local diameter change of the belt deviation.
A brief introduction to the Belt sway switch
1. This product uses aluminum alloy casting shell, high strength, light weight.
2. The protection grade of the shell reaches IP65, which can work in harsh environment for a long time.
3. The machine adopts imported microswitch, sensitive action, high stability, reliable performance.
The working principle of belt sway switch is introduced, when there is an emergency on the scene of the belt conveyor, the steel wire rope can be pulled on the swing arm, so that the swing arm rotates with the motor CAM and induction microswitch, send out the stop signal.
