行星齿轮传动齿根动应力计算

摘要

The workload is big to calculate the gear root stress of the planetary gear transmission because of the big contact ratio, so the gear root dynamic stress was studied in the paper. At the same time, the sun gear in the differential stage of the power dividing planetary transmission was taken an example, the finite element model, meshing and loading method were analyzed in detail. File of load was formed by use of APDL language on Ansys software. It was used for controlling loading on locations of several contact lines in a meshing cycle. Method of calculation in the paper can obtain the gear root dynamic stress on a tooth meshing process precisely and quickly.%针对功率分流行星齿轮传动齿轮重合度大,齿根应力计算工作量大的问题,对齿根动应力的计算问题进行了详细的研究.并以功率分流差动级太阳轮为例,对模型的建立方法、网格的划分方法、载荷的施加方法进行了详细的分析.利用Ansys中的APDL语言形成载荷文件,来控制在1个啮合周期内若干对接触线位置上载荷的施加.本文的计算方法可以精确、快速地得到1个齿在啮合过程中齿根的动应力.