At present, in order to prevent the deviation of the conveyor belt, it is necessary to set the belt sway switch on both sides. When the belt is deflected and comes into contact with the vertical roll of the belt sway switch, the vertical roll will automatically rotate. If the deviation angle of the belt will continue to increase, the vertical roll deflection caused by belt extrusion. When the deflection Angle of the pole exceeds 10 degrees, the first level switch that touches the belt sway switch will send out an alarm signal. When the deflection Angle of the vertical bar is more than 20 degrees, the two-stage switch touching the belt sway switch will send out the conveyor stop signal. In general, the first level switch signal is used for alarm. In order to give the alarm when the belt conveyor occurs light deviation. When the belt is seriously deviation, the belt conveyor will stop automatically. When the problem is solved, the vertical roll can be automatically reset. It will result the vertical roll rotating with the belt sway switch if the part of the belt has slightly deviation. The vertical roller often rotates and vibrates causing the retaining screw to loosen so that it falls off the output shaft of the belt sway switch. If the vertical bar falls off, the alarm signal cannot be sent out in time when the belt is slight deviation. When the belt conveyor deviated seriously, it can not stop in time, which may lead to serious wear and tear of the belt.
The belt sway switch provided by our company is specially designed to overcome the existing technical problems. Provide solutions based on the essence of the problem. The belt sway switch enhances vertical roller stability by setting up the retaining screw at the second end of the output shaft and mounting fasteners in the first threaded hole. Therefore, when the belt has deviated, the belt exerts a force along the output shaft on the vertical roller. Since the first nut of the first fastener is fixed on the shaft upward of the output shaft, the vertical roller will not fall off from the output shaft even if the belt deviating is repeatedly hit for a long time. Therefore, the belt sway switch can detect the belt deviation in time, and send out the corresponding alarm signal and shut down the belt machine, effectively avoiding serious wear and tear of the belt caused by the fall off of the vertical rod, thereby reducing economic losses.

Therefore, This belt sway switch has the advantage of structural stability and high safety, etc. It can be used in detection and protection all kind of belt conveyor. It is also suitable for the coal, metallurgy, chemical industry, grain, transportation and other industries, as well as in the harsh environment such as coal preparation plant, steel plant, thermal power plant, granary and port. The belt sway switch is the main characteristic of small volume, light weight, good sealing performance, convenient maintenance. In addition, after the contact point action, there is still a larger feeler level rotation buffer angle to protect itself, so that the belt sway switch is not easy to damage, the feeler level has the perfermance of longitudinal impact resistance. The feeler level is equipped with steel tube rolling protective sleeve, when the contact rod and tape friction plays a protective role, the use of fast plug outlet situation, simple structure, reliable, convenient.