摘要
根据刚度定义分析出变形量与刚度的线性关系,从啮合刚度的角度出发计算牵引齿轮的变形量,分别总结出以石川公式为基础的直齿轮啮合刚度求解方法以及以局部到整体或者傅里叶级数拟合为基础的斜齿轮啮合刚度求解方法。以SS8-Ⅱ型机车牵引齿轮为例通过分段法求解出时变啮合刚度、齿间载荷分配量以及最终所需的变形量,计算结果表明齿间载荷分配与已有根据经验公式及大量实验数据所得的曲线图大致一致,也表明这种方法对机车牵引齿轮的变形量的计算具有非常好的效果,为后续的牵引齿轮齿廓修形打下重要的基础,也对研究机车牵引齿轮传动平稳性具有重要的理论现实意义。
According to the definition of stiffness,the linear relationship between deformation and stiffness is analyzed,the deformation of the traction gear can be calculated from the perspective of meshing stiffness. The method to solve the meshing stiffness of spur gear based on Ishikawa formula and the method to solve the meshing stiffness of helical gear based on local to whole or Fourier series fitting are summarized. Taking the traction gear of SS8-Ⅱ locomotive as an example,time-varying meshing stiffness,the load distribution between teeth and the final required deformation are solved by the piecewise method.The result shows that the distribution of the interdental load is approximately the same as the curves obtained from empirical formulas and a large number of experimental data. It shows that this method has a very good effect on the calculation of the deformation of the locomotive traction gear and lays an important foundation for the follow-up modification of the traction gear tooth profile. It also has important theoretical and practical significance for studying the stability of locomotive traction gear transmission.
作者
雷蕾
丁海春
轩亮
LEI Lei;DING Hai-chun;XUAN Liang(School of Mechanical Engineering,Dalian Jiaotong University,Liaoning Dalian116028,China;School of Mechanical and Architectural Engineering,Jianghan University,Hubei Wuhan430056,China)
出处
《机械设计与制造》
北大核心
2020年第3期34-38,共5页
Machinery Design & Manufacture
基金
中国铁路总公司科研开发计划课题(基金项目编号:2017J009-H)。
关键词
时变啮合刚度
牵引齿轮
变形量
齿廓修形基础
Time-Varying Meshing Stiffness
Traction Gear
Deformation
Foundation of Tooth Profile Repairs
