掘进机截割减速器太阳轮限位副载荷计算

Load Calculation of Limit Pair of Sun Gear on the Roadheader Cutting Reducer

在EBZ-260型掘进机的实际应用中,存在着截割减速器太阳轮限位板-限位销的严重磨损问题。根据经典摩擦理论,太阳轮限位副接触面必承受载荷。载荷是影响磨损程度的最重要因素之一。为解决限位板-限位销磨损问题,通过Solid Works软件对EBZ-260型掘进机截割减速器第一级太阳轮进行三维精确建模,模拟真实的载荷情况,利用Solid Works Simulation对三维模型进行有限元静力学分析。进而得出第一级太阳轮花键齿部变形,带入轴向力计算模型计算得出太阳轮所受轴向力。最后分析了影响轴向力的其它因素,得出第一、二级太阳轮输出端受到的轴向总力的函数表达式,并应用MATLAB编程图形化显示。确定了太阳轮限位板-限位销磨损原因,为对磨损的进一步研究提供了精确的载荷数据。

During the practical application of EBZ - 260 type roadheader, the stopper plate and pin of sun gear on the cutting reducer of roadheader shall be worn seriously. According to the classical friction theory, the contact surface of limit pair of sun gear must be subject to the load. The load is one of crucial factors that influ- ence the wear loss. In order to solve the wearing problem of stopper plate and pin, the software SolidWorks is used to conduct accurate 3D modeling against the first - stage sun gear on cutting reducer of EBZ - 260 type roadheader, and the actual load condition is simulated. The Software SolidWorks Simulation is used to conduct finite element statics analysis against the 3D model, so as to obtain the deformation of spline tooth of first - stage sun gear, which shall be brought into the calculation model to calculate the axial force suffered by the sun gear. Finally, other factors influencing the axial force are analyzed and the function expression of general axial force endured on the output end of the first - stage and second - stage sun gear is obtained, which shall be displayed in the MATLAB programming graph. Therefore, the determination of the wear loss causes of stopper plate and pin of sun gear is defined, and it shall provide accurate load data for further study on wearing problem.