Modeling and Simulation of Nonlinear Dynamic Characteristics of Gear Drive System in Shearer Cutting

摘要

In this paper, the nonlinear dynamic model of the shearer's gear transmission system is established by taking the gear transmission system of the shearer's cutting part as the research object. Considering the damping ratio, the meshing stiffness and the excitation frequency on the nonlinear dynamic The results show that: the smaller the damping ratio, the greater the nonlinear effect of the second-order planetary gear system on the sun wheel displacement response; the greater the meshing stiffness will cause the sun wheel displacement response to exhibit chaos; when the excitation frequency changes, the sun wheel of response is transformed from periodic to chaotic response and then back to quasi-periodic response. This kind of research method provides the theoretical support for the related nonlinear problem, and provides a reasonable analysis basis for design.