粗糙齿面接触应力与齿轮转速关系的理论探析  

Theoretical Analysis of the Relationship Between Contact Stress on Rough Tooth Surface and Gear Speed

作　　者：陶昆[1] 亓秀梅[1] 高创宽[2] 

机构地区：[1]太原理工大学机械工程学院,山西太原030024 [2]杭州万向职业技术学院,浙江杭州310023

出　　处：《机械传动》2017年第5期1-4,共4页Journal of Mechanical Transmission

基　　金：国家自然科学基金(50975189)

摘　　要：通过实测获得了具有横向纹理的表面粗糙度数据,借助傅立叶非线性变换,形成了近似真实分布的齿面粗糙度函数;将此函数叠加到油膜厚度方程中,构建了渐开线直齿圆柱齿轮传动混合弹流润滑模型。基于该模型,分别针对中、重载齿轮传动,通过改变小齿轮转速之值,共进行了约130组数值计算。结果表明,增大齿轮转速可有效改善齿轮润滑状态、降低齿面接触应力;然而,当转速增至一定值后,接触应力随转速的下降幅度十分缓慢。The surface roughness data of test- piece with transverse roughness profiles are measured. With the help of the Fourier approximation, the measured data are used to form a roughness function which is then added to the oil film thickness equation and a model of mixed elastohydrodynamic lubrication for an involute spur gear transmission is established. Based on this model, nearly 130 groups numerical calculations are carried out through changing the pinion speeds for medium and heavy - duty gear transmissions respectively. The computing results show increasing the pinion speed can effectively improve the gearing lubrication state and reduce the contact stress on rough surface. However, decreasing of the contact stress is very slowly with the addition of the pinion speed when the speed exceeds a certain value.

关 键 词：真实粗糙齿面 齿轮转速 接触应力 

分 类 号：TH132.41[机械工程—机械制造及自动化]