The deviation of the belt conveyor is very terroble. Serious deviation of the belt conveyor will cause transverse fracture, paralyzing the whole production line and possibly causing major safety accidents. So for the coal mine belt machine to take a variety of measures to prevent deviation, from the production of belt machine production, installation and commissioning and the whole process of production and operation to do a good job in the prevention of deviation, the use of modern high-tech to prevent deviation phenomenon for effective prevention, constantly improve production efficiency, ensure production safety, promote the improvement of economic benefits of the enterprise. Belt sway switch is mainly used for belt conveyor belt deviation test, to prevent the belt deviation caused by material overflow and other obstacles, is one of the necessary belt conveyor protection devices. When the belt deviation reaches the first level switch position, it indicates that the belt is slightly off-tracking, and there is a hidden trouble. The single-chip microcomputer will output the alarm signal to the monitor through the power supply carrier, but it will not stop. When the belt deviation reaches the position of the two-level switch, the belt will be in danger of turning over. It is necessary to output the alarm and stop power lock signal immediately. After troubleshooting, the equipment will work again. The new type of off-tracking protection device designed by us is a kind of intelligent control instrument, which can be put into use automatically, alarm in time and linkage control by drawing on the advanced technology of the same kind of products at home and abroad to update the old products and adopt the technology of proximity switch and single-chip microcomputer control, power supply carrier communication, terminal liquid crystal display and so on.
In the process of installing the belt sway switch, the limit switch shall be applied. At this time, if the conveyor belt of the conveyor deviates, the sensor will collide with the belt and act on the limit switch to stop the work of the conveyor. When installing the device, it shall be installed in pairs to ensure the symmetry of the device, and belt sway switch shall be installed at the starting, middle and bunching positions of the conveyor respectively. Anti-deviation protection devices shall also be installed if the conveyor has slope changes in the conveying process.
The installation of belt machine belt sway switch can also prevent the occurrence of off-tracking phenomenon, the reasons for the belt machine off-tracking can be detected, encountered off-tracking phenomenon can immediately alarm or shut down the belt machine, to prevent serious accidents, to ensure the safety of production and operation personnel safety. Alarm and shutdown are two - stage action functions of belt sway switch. Level is reported to the police, if the partial switch detects the belt conveyor running deviation trend, the partial on off will start to call the police, if such a trend of increase gradually in the running, make effective stick the Angle of the tilt Angle is greater than the secondary action, prevent partial switch will signal another group, two groups of signals are used for alarm and shutdown. After the staff checks and repairs the belt conveyor, once the belt is reset and works normally, the force rod will restore the normal Angle and the belt conveyor belt way switch will work normally.