The anti-skid switch of the chain scraper conveyor is a protection device used to detect the slip between the conveyor belt and the driving roller and alarm. When the conveyor belt slides, it can be used to automatically trigger an emergency stop. Slippage is a serious failure phenomenon. The reasons may be overload, belt jam, belt break, drum jam, abnormal motor speed, etc. If it is not stopped in time, it may cause serious damage to the equipment, fire and serious personal injury accidents.
There are many types of slide switches, and their working principles and detection methods are also different. For example, according to the detection method, there is a touch wheel slide switch that directly detects the conveyor belt speed and compares it with the set standard speed, and has a slide switch that detects the speed of the driven wheel and compares it with the set standard speed , And detect the drum speed at the same time. Contrast sliding switch, compared with the speed of the conveyor belt; According to the internal working principle, there are magnetoresistance, magnetoelectricity, photosensitive, etc. Part of the sliding switch device also provides real-time signal display and output of conveyor belt line speed or drum speed.
At present, the problems frequently encountered in the installation and use of sliding switches widely used in chain scraper conveyor are as follows: There are many types of chain scraper conveyor sliding switches, and the application is often improperly selected. Some products are difficult to adapt to the harsh environmental conditions on site, such as dust, humidity, vibration, etc. Some products are difficult to install on site, such as split products with speed probes and control boxes. On-site installation and wiring are troublesome.
Many products of scraper chain conveyor judge slip by comparing the difference between the actual speed of the conveyor belt and the rated standard speed. Therefore, it must have the function of avoiding the start and stop process of the scraper chain conveyor, and it is impossible to judge the start and stop of the scraper chain conveyor. Slippage occurred during this process. However, during the start of the scraper chain conveyor, due to the acceleration, it is necessary to overcome a large static friction and the possibility of clogging that may occur.
