The installation of the rubber rings is to improve the density for first; and the regular inspection for second, timely replacement of damaged conveyor idler. For the conveyor belt with a larger drop, it is recommended to install the buffer gas holder. In the purchase according to the characteristics of the buffer idler of a few notes: conveyor idler radial runout, roller flexibility, axial runout, conveyor idler, waterproof, dustproof performance of conveyor idler axial bearing properties, buffer idler impact performance.

(1) temperature protection of buffer idler

Belt conveyor belt friction conveyor idler and its temperature exceeds the limit, installed close to the detection device of driving drum a over temperature signal, the receiver receives the signal, the 3S delay, the executive part of the action, cut off the motor power supply, automatic conveyor stops, play with temperature protection.

(2) speed protection of conveyor idler group

If the conveyor failure occurs, such as motor burns, mechanical transmission part is damaged, the belt or chain breaks, slipping belt, conveyor is installed in the SG accident on the motivation of sensor magnetic switch can not be closed or not according to the normal speed of the control system will be closed by the inverse time characteristic of a certain delay, speed protection circuit function so, execute action, cut off the motor power supply, in order to avoid the accident.