Comparative Analysis of Meshing Performance of Spiral Bevel Gears Generated by Duplex Helical and SGM Method

Abstract

In order to get a deeper understanding of duplex helical method, the mathematical model of spiral bevel gear pair by duplex helical method was established and two models of gear pairs generated by duplex helical method and SGM method respectively were built for meshing performance analysis. The duplex helical method for pinion generating was introduced in detail through the process of the pinion modeling. The meshing performance of the gear pairs modeled was analyzed by finite element analysis software. The results show that the meshing performance of the gear pair by SGM method is superior to that by duplex helical method. The contact pressure, contact force and transmission error of the gear pair by SGM method are preferable while severe edge contact happens to that by duplex helical method and its contact path is discontinuous. For duplex helical method, tooth modification should be done to get better meshing performance.