齿式离合器结合过程动态特性的仿真

Simulative research on dynamic characteristics of meshing process of toothed clutch

为了分析齿式离合器齿轮在轴向结合过程中的动态冲击载荷,进而为工程设计提供参考,以存在转速差和轴向相对运动的内啮合齿轮副作为研究模型,采用系统动力学分析软件ADAMS分析了轮齿结合过程的动态特性,给出了完整结合过程的动态转矩、轴向力和转速等关键参数。分析了轮齿结合过程的机理,并基于数值仿真定量分析了主要结构参数和运行参数对内啮合轮齿轴向结合过程及其冲击载荷的影响。结果显示存在转速差和轴向相对运动的齿轮副在结合过程中产生较大的轴向力和转矩冲击值,并且轮齿转速差、结合速度和轴向推力等参数对冲击载荷具有较大影响,该结果可为相关离合器的设计提供依据。

For the sake of analyzing the dynamic impacting load in the process of axial meshing of toothed clutch gear and then provides reference for engineering design, taking the interior meshing gear pair that exists rotary speed difference and relative axial movement as the model of study and by adopting the systematic dynamics analytical software ADAMS the dynamic characteristics for the process of gear meshing was analyzed, and key parameters of dynamic torque, axial force and rotary speed etc. of the entire meshing process were presented. The mechanism of gear meshing process has been analyzed, and on the basis of numerical simulation the main structural parameters and the irfluences of the operational parameters on the axial meshing process of interior meshing gear and its impacting load were analyzed quantitatively. The result showed that the gear pair that existed rotary speed difference and relative axial movement would engender biggish axial force and torque impaction value during the course of engagement, and the parameters of difference of gear rotary speed, meshing speed and axial thrust force etc. bore biggish influences on the impaction load. This result could provide basis for the design of relevant clutches.