Study on the motor controlled deviation adjusting principle of a high-speed belt driving system

A mathematic model of a high-speed belt driving system is presented, which considers the mechanical influence of the system's inertial forces, diameters of pulleys and outputting power on the high-speed belt, and gives the relational expression about forces, kinematics parameters and physics parameters. At the same time, a conclusion about planar belt driving system that the summation of all wrap angles is a fixed value is presented. According to the analysis results, a motor controlled variable deviation adjusting mechanism for the abrasive belt was designed. The results of the simulation and the experiment prove that the mechanism can control the belt's transverse swing initiatively and effectively by shifting the motor's moving speed. The trouble of the abrasive belt's pulling out from the grinder can be avoided. Furthermore, the wear of the abrasive belt can be uniform and its lifetime can be prolonged. On the other hand, the mechining quality of workpieces can be improved.