Abstract
A new type of non-circular planetary gear train is proposed, in which the planetary gear is internally meshed with the sun gear and the ring gear at the same time. The structural form and transmission principle are analyzed, and the design method of non-circular gear pitch curves and related parameters of the gear train are discussed. The input–output relationship under various working conditions of the gear train is deduced. The precise tooth profile of the non-circular gears is obtained by the Boolean operation of MATLAB, then the virtual prototype model of the planetary gear train is established, and the kinematics simulation is carried out in the ADAMS software. The simulation results verify the correctness of the transmission principle and the theoretical analysis of the motion law.
Highlights
The non-circular gear is a mechanism that can realize the non-uniform speed ratio transmission between the driving and driven gears.[1]
The design method of the pitch curves of the gear train based on internal high-order non-circular gears is proposed, and the boundary conditions of the design parameters are analyzed
When designing CDIMNPGT, the parameters of the two pairs of non-circular gear pitch curves are usually coordinated according to the condition of the equal center distance
Summary
The non-circular gear is a mechanism that can realize the non-uniform speed ratio transmission between the driving and driven gears.[1]. Keywords Non-circular planetary gear, double internal meshing, pitch curve, tooth profile, kinematics simulation
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