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The core of the belt conveyor components, including tensioning devices, brakes and drive.
tensioning device
The tensioning device is a belt conveyor important and indispensable part of it can to ensure sufficient tension of the belt conveyor drive roller separation point, to prevent the conveyor belt slipping, and the ability to compensate for the excessive operating conditions when the conveyor belt of plastic deformation, maintain normal operation of the conveyor of the required minimum tension force, thus ensuring the normal operation of the belt conveyor. The tensioning device performance of a direct impact on the performance of the whole of the belt conveyor, belt conveyor is particularly important.
The tensioning device earlier, the 1940s of the last century, the Soviet Union and Japan have begun to use in a foreign country, our use of the tensioning device is relatively long time, theoretical research and design methods to be further improved. Throughout the course of development of the tensioning device in China, has gone through mechanical tension, semi-automatic tensioning and automatic tensioning three phases, the mechanical tension is mainly fixed winch-type and hammer two kinds of tension, including fixed winch style tensioner only manual adjustment, can not guarantee that the conveyor belt tension constant, while the heavy hammer tension response is slow, costly and operationally inconvenient problem; semi-automatic tensioning mainly refers to the hydraulic winch tensioning device, such tensioning device to the basic realization of the conveyor belt tension constant, while the corresponding speed, lower cost, but there are also large energy consumption equipment badly worn and the high failure rate disadvantage; automatic tensioner hydraulic automatic control mainly refers to tension device, according to the belt conveyor in the start-up phase and the normal and stable operation of stages of different conveyor belt tension, to determine the reasonable control of the tension model, using the hydraulic integration to achieve automatic control of its tension, in order to achieve belt conveyor at startup, braking and stability of the operational phase of constant tension, greatly extending the life of the conveyor belt.
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