Meshing evaluation method for rocker-pin jointed silent chain transmission system based on the multi-factor coupling characteristic

Abstract

Due to the multi-factor coupling characteristic, the meshing performance of rocker-pin jointed silent chain transmission system cannot be evaluated by conventional design method, and the design effectiveness and feasibility cannot be assured. In this study, the influence of the relations between the contact point and the involute meshing limitation on the system meshing is analyzed. Through building the polygonal action model for the transitional meshing state, the algorithms to calculate the fluctuation value of chain in different directions are obtained. Based on the classical testing system, the methods to analyze the fluctuations in the system tension side and loose side are proposed. Combined with a set of specific examples, the system meshing performances are evaluated by coupling method. Dynamics experiment results show that the real meshing performances of rocker-pin jointed silent chain transmission system are matched with the evaluation results. This study not only improves the effectiveness and feasibility of rocker-pin jointed silent chain design, but also provides a direction to optimize the system parameters.