拨车机驱动功率计算模型与牵引臂有限元强度分析

Computational model for the driving power of loaded car puller and FEM strength analysis of the traction arm

在充分分析重载车厢运行阻力、启动动载荷、风附加阻力、坡道附加阻力和弯道附加阻力的基础上,建立了拨车机启动过程中的阻力系统数学模型。结合大秦线2万t重列货车寻求拨车机电机功率匹配的最佳设计方案,为拨车机参数设计提供理论依据。针对拨车机工作过程中主要承载构件拨车臂,应用ANSYS软件进行强度分析,证明拨车臂的设计有一定的安全裕度。

On the basis of an in-depth analysis of the loaded car＇s parameters, like running resistance, dynamic load at the start, additional resistance from the wind, additional resistance from a ramp, and additional resistance at a curve, this essay establishes a mathematical model for the resistance system of the loaded car puller during a start. In finding an optimal design solution to choosing a matching motor power for loaded car puller intended for the handling of 20 000-ton loaded ear trains on the Datong-Qinhuangdao Line, it further provides a theoretical basis for the design of the loaded car puller＇s parameters. Then, aiming at the loaded car puller arm-the main load-bearing member of the loaded car puller, this essay uses ANSYS software to complete a strength analysis and then proves that the traction arm in use on the loaded ear puller ensures a certain amount of safety margin.