Research on Transmission Error of Dual-eccentric Gears

A transmission error analytical mothed of dual-eccentric gears is proposed. The relation among instantaneous node, transmission ratio error, and transmission error is deduced. In order to demonstrate the validity of the analytical method, the solid model is constructed in the dynamics simulation software RecurDyn and the simulation transmission error is obtained. By comparison, the simulation transmission error curve agrees well with the analytical one. On this basis, dynamic transmission error under meshing frequency varying load is explored and the relation between dynamic transmission error, the theoretical transmission error and backlash is studied simultaneously. Finally, the optimum initial phase has been given to decrease the transmission error under the circumstance of fixed eccentricity