KINEMATIC AND GEOMETRIC-MODELS OF GEAR DRIVES

A methodology is proposed for the modification of gear tooth surfaces that reduces the impact of gear drive misalignment, the shift of the b earing contact (accompanied in some cases with edge contact), and the occurrence of discontinuous functions of transmission errors. The prop osed approach is tested by computerized simulation of meshing and cont act for unloaded and loaded gear drives. Applications of geometry modi fications to the design of spur and helical involute gears, double-cir cular helical gears, face-gear drives, face-milled spiral bevel gears with constant tooth height and worm-gear drives are represented.