Study On The Control System Of The Take-up System Of Belt Conveyor

With the developing of belt conveyor, to the high-speed, long distance, large capacity and high-power, the dynamic characteristics of belt conveyor systems have become increasingly prominent and can not be ignored, and take-up system is an important and indispensable component, which is directly related to the safe operation and belt's life. Therefore, to study the characteristics of take-up system of belt conveyor is very important for large capacity and long distance belt conveyor to run normally, and it is necessary to exploit a new style belt conveyor take-up system.This paper analyzes some traditional take-up system of belt conveyor, like work mode, structure principle, advantages and disadvantages. Base on the design highlights, design principles, and installation location of take-up system, through scheme argumentation the paper design a control-take-up system, which include the hydraulic system, the electrical control system and mechanical system. This paper better solves the formerly take-up system's drawbacks, which it can not be achieved in tension control continuously and so on. The new take-up system comes to a better tension control effect under external load, prolongs service life of belt conveyor, and improving work efficiency. The paper also includes selection and design for some main parts of hydraulic system and mechanical system. In the electrical control system, I chose the PLC control program to design the control scheme, and uses the S7-PLCSIM to simulate the control program. It laid the foundation for practical application of tensioning device.Traditional static analysis method is based on static or uniform state to analyze the force of the belt conveyor system, leading that the dynamic nature of tensioning device to the whole system has been neglected. Therefore, this paper takes this dynamic analysis method. Against the physics model of the take-up system, this paper uses the method which analyzes the whole model, and blocks models, then unified the models, to get and analyze the system model.It uses Simulink of MATLAB to simulate the take-up system, validating that the system is feasible. In the time from stop to start, then to run smoothly, the take-up system can drop the belt's strain from the start date to normal in a short time, it also can finish the process of belt's take-up and release in a short time. During the conveyor's process from start to normal, the take-up system ensure that the belt is suffered the fewer vibration which coursed by impulsion, achieving a good control effect.