Design, Analysis and Experiment Study of the Permanent Maglev Roller used in Belt Conveyor

The transport energy consumption of the belt conveyor can be reduced by using the maglev roller instead of the mechanical roller. In this research, the structure of permanent magnetic roller is studied. The mathematical model of the permanent magnetic bearing used in the roller is established by using the equivalent magnetic charge method (EMCM). Then the bearing characteristics of the permanent magnetic bearing are analyzed by using the finite element method (FEM). The structure parameters of the optimized magnetic levitation roller are obtained. Through the experiment study, the rotating resistance of the maglev roller can be reduced to 1.4N, which is far less than the design requirements of the mechanical rollers. And the radial round jump of the maglev roller is at 0.18-0.25mm, less than the radial round jump of the high quality mechanical roller. The analysis of the theory is verified.