液压机械混合动力无级变速箱动力学特性分析  

Dynamics characteristics analysis of hydraulic-machine hybrid continuous transmission

作　　者：杨化林[1] 巩康[1] 冯闯 

机构地区：[1]青岛科技大学机电工程学院,青岛266061 [2]颐中(青岛)烟草机械有限公司,青岛266021

出　　处：《现代制造工程》2016年第4期104-107,115,共5页Modern Manufacturing Engineering

基　　金：山东省博士后创新基金资助项目(201202005)

摘　　要：针对某公司全新设计的一种液压机械无级变速箱，为了分析工作过程中其齿轮所受到的啮合力以及接触应力是否满足要求，首先在一个恒定的输入转速下对变速箱进行动力学仿真，将仿真得到的输出齿轮的啮合力和啮合频率与理论值进行比较分析，然后将动力学仿真结果作为边界条件，再对齿轮对进行接触应力有限元分析。结果显示齿轮三向啮合力的仿真值为586．3、267．5、124．1N与理论值596．8、221．3、116．ON相差甚微，啮合频率仿真值为106．8Hz与理论值110．9Hz基本吻合，接触应力分析值在250-300MPa之间也与理论值285．14MPa基本一致，说明了齿轮模型的正确性以及动力学和有限元分析方法的合理性。A hydraulic-machine continuous transmission has been designed, in order to analyse whether the meshing force and contact stress can meet the expected requirements or not in the working process. Firstly the dynamics simulation of the transmis- sion was done using a constant input speed, the simulation results of meshing force and meshing frequency were studied and com- pared with the theoretical values. Then the simulation results acted as boundary conditions, the finite element analysis of gears a- bout contact stress was done. The results display that the simulation value of meshing force and meshing frequency is 586.3N, 267.5N, 124.1N and 106.8Hz which fit well with the theoretical values that is 596.8N ,221.3N, 116. ON and 110.9Hz, the sim- ulation value of contact stress is between 250MPa and 300MPa which also consistent with theoretical values that is 285.14MPa, which illustrate the gears model is correct and the method of dynamics and FEA is reasonable.

关 键 词：变速箱 啮合力 啮合频率 接触应力 

分 类 号：TH132.46[机械工程—机械制造及自动化]