With the belt conveyor to the long-distance, high-speed, high-power direction, with the exception of drive, the tensioning device is to guarantee the conveyor normal start, run, braking, and stopping the indispensable one of the important parts, immediate influence belt type conveyer's security reliability and stability.
Through the various belt conveyor tensioning device comparison and analysis tells us that according to the existing tension of all types of devices, it is difficult to achieve the best results of tension. Frequency of the use of design drag on the tape take-up of technology to conduct real-time control and automatic adjustment, but take-up of the fast response, thus reducing the impact of the belt, a belt and equipment to extend the service life, saving a conveyor operation Cost. The tensioning device structure is simple, easy maintenance, and to achieve long belt conveyor take-up requirements. The design departure from the system as a whole, the installation of mechanical tension transmission system in detail and identified on the programme, the winch, reducer, reel, and other major parts of the design, the main shaft, gear, such as the structure and Strength design, while the use of the equipment and maintenance of a brief discussion. Designed by the tensioning device can conveyor different operating conditions automatically adjust the size of tension, so that tape tension control in the best condition to ensure the conveyor security, stable, reliable operation.
Keywords: Belt conveyors ;Stretching device ;Tensioning force ;Frequency conversion