Conceptual Design of Controllable Soft Start Device with Differential Planetary Gear-Trains

Abstract

This paper presents a new driving system for realize the function of soft-starting and soft-stopping of belt conveyor. This device consists of planetary gear box, tow motors and controlling system. The basic concept is to combine differential planetary gear trains and converter technique. So, by controlling the angular velocity of inner gear the belt conveyor can realize the function of soft-starting and soft-stopping. During the working period this system has four different modes. By means of components libraries and virtual assembly the virtual model of CCSD is obtained. The kinematical and dynamic simulations are performed. By analysis the resisting force of belt conveyor we can obtain the curve of output-load properties of the controllable soft start equipment. As a result the dynamic force, the torque of each constrain, the ideal power of controlling motor, the ratio of main motor and controlling one were obtained.