Outer Surface Elongation of Flexspline and Its Influence on Harmonic Drive Meshing
The accurate calculation of the backlash of harmonic reducers is crucial for the study of trans-mission performance,load capacity calculation,and tooth profile design of harmonic reducers.The current re-search is based on the neutral line no-elongation theory,calculating the assembly of flexible gear tooth profile.Considering the fact that gear teeth grow in the flexspline outer surface,assembly will make flexspline outer sur-face deform,leading to deviation of gear teeth.In this study,the method for solving the no-load clearance is pro-posed based on the flexspline outer surface deformation.The results show that the new method for calculating the flexspline assembly may present tooth profile interference,which should be considered in tooth profile de-sign or harmonic reducer design.The finite element method is used to verify the analytical solution,and the two results are basically consistent.
Flexible gear ring gearOuter surface elongationNo-load backlash
NETL
NSTL
万方数据
维普
