探析粗糙齿面纹理方向对齿轮弹流润滑的影响  

Analysis of the Effect of Tooth Surface Rough Texture on Gear Elastohydrodynamic Lubrication

作　　者：李荣荣[1] 张蕾[1] 李群[2] 

机构地区：[1]河南城建学院,河南平顶山467036 [2]太原理工大学机械工程学院,山西太原030024

出　　处：《机械传动》2013年第10期110-114,共5页Journal of Mechanical Transmission

摘　　要：首先采用粗糙度轮廓测量分析仪测得了试件表面粗糙度,接着用傅立叶变换非线性逼近法建立了齿面粗糙度函数,然后将此函数叠加到油膜厚度方程中建立了齿轮传动混合弹流润滑模型。基于此模型,在齿轮传动参数固定不变的条件下,通过改变横、纵纹理方向的粗糙度值共进行了46组混合弹流润滑数值计算。结果表明,随着油膜比厚K的增大,纵向条纹下粗糙齿面平均膜厚与光滑齿面平均膜厚比值hav/has逐渐增大最后趋近于1,而横向条纹与之相反逐渐减小最后也趋近与1。最后,借助回归分析理论,建立了hav/has与油膜比厚K之间的定量关系。Firstly, the surface roughness data of a test - piece are measured by a roughness profile measuring an- alyzer. By using of the Fourier transform nonlinear approximation method, the measured data are used to build a rough- ness function which is then added to the oil film thickness equation and a gearing mixed elastohydrodynamic lubrication model is established. Based on this model,46 groups numerical calculation of mixed elastohydrodynamic lubrication are carried out through changing the date of roughness when gearing parameters and other lubricant parameter are fixed. The computing results show that, with the film ratio k increased, the ratio of the vertical stripes average film thickness hay/has is gradually increased and in the last approaching to 1, on the contrary, the transverse stripe decreased and in the last approaching to I. At the end, the quantitative relationship between hay/has and the film ratio ）, are created based on the regression analysis of the above 46 groups calculational results.

关 键 词：实测粗糙度数据 混合弹流润滑 齿轮传动 油膜比厚 

分 类 号：TH132.41[机械工程—机械制造及自动化]