Belt conveyor is a kind of machine that could transport materials continuously with friction drive. Belt conveyor mainly consists of frame, conveyor belt, roller, drum, tensioning device and transmission. Belt conveyor could finish the process that materials are conveyed from initial feeding point to final emptying point in certain transportation line. Belt conveyor could transport not only bulk materials, but also packed freight. Besides the pure material handling, belt conveyor also coordinates various industrial enterprises' requirements of manufacturing process and eventually forms orderly production line of conveyer system.
There are many protective devices for keeping the equipment operating normally in the course of reclaimer operation. An ordinary reclaimer should have following devices: material level limit, pitching and rotating limit, walking encoder and buffer stopper, sound-light alarming device, scramming device, ultrasonic anti-crash device, overheat protection system of motor reducing gear, under speed and tearing warning device of arm belt, PLC interlocking device and other protection devices. Tractive effort the belt conveyor design needs is transferred through rubbing action between driving pulley of driving device and conveyor belt. So the friction drive forms. To ensure the transmitting of acting force and traction components' no slipping on the driving wheel, the following conditions must be met. (1) The traction components should have enough tension. (2) There should be certain roughness on the contact surface of traction belt and driving pulley. (3) Traction belt should have an enough surrounding angle on the driving wheel. 进行编辑.
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