Modeling And Simulating Research Of AMT Driving Belt Conveyor

The belt conveyor is the most important translation equipment which can carry categories of materials, but its drive system is expensive, complex and difficult to maintain. Automatic mechanical transmission takes an important role in Automatic Transmission, due to its high transfer efficiency, low cost, easiness to manufacture and convenience to maintain. Based on this, a program of belt conveyor cranking up is firstly put forward. In this program, three-phase asynchronous motor produces power, AMT transmits power, and ECU controls automatic shifting. This program is feasible by computer simulation.Main characteristics of diaphragm spring clutch are systematically analyzed in this dissertation, including loading behavior of diaphragm spring, connecting and torque-transferring behavior of clutch. The mathematic describe of any stage of the shifting progress is done, and the dynamic models of synchronizer and actuator are built. The CEMA computing method of belt tension and power is introduced, so the belt tension and power is introduced can be calculated. The torque formula and intrinsic mechanical characteristic of three-phase asynchronous motor are introduced.One-parameter-controlled shifting regularity is adopted in this program. The thesis employs the simulation software Matlab/Simulink to build a simulation model for AMT driving belt conveyor. In this model, shifting logic controller controls the active state of shifting regularity model. The simulation includes three cases: one gear, three gears and five gears. The simulation results show that the work of slipping of five gears is smaller than it's rating, and the maximum acceleration of belt meets requirements. In small power and low velocity occasion, the AMT of five gears is feasible. The system of AMT is competitive in the drive system market, due to its low cost, simple structure, high transfer efficiency and convenience to maintain.