纵轴式掘进机履带行走系统张紧力仿真研究

Simulation study on tension of track walking system in longitudinal roadheader

为了研究纵轴式掘进机钻进截割时的履带张力特性,结合拉格朗日第二类方程,应用离散体动力学模型法,建立了掘进机履带行走系统的动力学微分方程,仿真得出掘进机履带张力曲线,并对履带张力波动情况进行了分析。研究表明,随着掘进机履带张紧力的加大,履带之间的张力变大,张力波动也增大,该成果也为研究履带式车辆动力学问题提供了参考。

In order to study the tension characteristics of the track at the longitudinal roadheader cutting,the discrete element dynamic model method was used to build the dynamic differential equation of the track walking system in combination with the second kind of Lagrange equation.And then,the variation curve of the roadheader track tension was obtained,and the variation of the track tension was analyzed.The study showed that as the tension of the roadheader track increased,both the tension between tracks and the tension variation increased.The results offered references for studying the dynamical issues of the tracked vehicles.