Conveyor belt winding device and its constant tension control

ZHANG Li-dong1,2,3, KOU Zi-ming1,2,3, WU Juan1,2,3, JIN Shu-kui1,2,3, ZHANG Li-nan1,2,3
(1.College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
2.Shanxi Province Mineral Fluid Controlling Engineering Laboratory, Taiyuan 030024, China;
3.National-local Joint Engineering Laboratory of Mining Fluid Control, Taiyuan 030024, China)

Abstract: Aiming at the problems of unwinding or overloading of the winding motor caused by the unstable winding tension of the belt conveyor during the belt change process, the constant tension control of the belt winding machine was studied, a mathematical model of winding tension control was proposed, and a center winding type winding machine and a control strategy to achieve constant tension winding through PI frequency conversion speed control were designed through this model. The tape coiler model was simplified, Recurdyn-R2R2D was used to build a simplified dynamic simulation model of the tape coiler, and a constant tension control strategy was built in Colink aceording to the tension control model. Finally. the effect of constant tension winding was analyzed through Co-simulation of Recurdyn and Colink. The results indicate that the PI variable frequency speed regulation designed by the tension control model to realize the control strategy of constant tension winding can stabilize the unit tension at 5 N/mm2 during the winding process, and the maximum overshoot does not exceed 8%. It also can sense the sudden increase signal of winding tension to quickly control the stop of the winding machine to prevent the motor from overloading, which provides a reference for the design and field application of the conveyor belt winder.
Key words: belt conveyor; center winding type winding machine; Recurdyn-R2R2D; Colink; constant tension control