Design And Performance Research Of Soft Start-up Equipment On Giant Belt Conveyor

With the development of technology, the belt conveyor is becoming more and more widely used in various industries. A lot of these mechanical equipments are big votary inertia or have to start-up with overloaded. The impact of starting is the main reason why damage the machine or shorten its life. And the best solution way is to use a soft start-up technology. On the basis of analyzing the way and research status quo of start-up technology on the overloaded machine, the mechanical-electronic soft start-up technology is decided to use as the start way on giant belt conveyor that designed.In the soft start-up equipment, the mechanism is very important. It has been designed with the planet differential gear train as the core, and the Sine-shaped acceleration control curve has been determined as the start-up curve. The thesis analyzed the mechanism's working principle, kinematics and dynamics performance. Because of the complexity of the whole system, a virtual prototype of the device is established using the software Pro / E. which will ensure the physical prototype's exactly design. The kinematics and dynamics simulation analysis is carried through the movement analysis module.The control system has been designed with PLC as the core. The thesis has determined the model of the motors, the frequency converter that the key spare parts. According to the requirements of the work process, the control system's program have been designed for soft start-up and stop.On the basis of all aspects of mathematical model, the simulation experiment is made using MATLAB/SIMULINK. The result showed that the soft start-up system meet the movement requirement, the controllable output can be achieved In the case of overloading.