直齿圆柱齿轮齿面接触温度研究  

Study on the Tooth Surface Contact Temperature of Spur Gear

作　　者：沈佳志 苟向锋[1,2] 朱凌云 Shen Jiazhi;Gou Xiangfeng;Zhu Lingyun(School of Mechanical Engineering,Tiangong University,Tianjin 300387,China;Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学机械工程学院,天津300387 [2]天津工业大学天津市现代机电装备技术重点实验室,天津300387

出　　处：《机械传动》2020年第5期1-9,共9页Journal of Mechanical Transmission

基　　金：国家自然科学基金(51365025);天津市自然科学基金(18JCYBJC88800);天津市自然科学基金重点项目(16JCZDJC38500)。

摘　　要：针对齿面接触温度对齿轮啮合过程的重要影响,基于Blok闪温理论推导了直齿圆柱齿轮在4种不同润滑状态下的齿面接触温度计算公式,分析齿面接触温度沿啮合线的分布情况及转速、转矩、润滑油黏度和齿侧间隙对齿面接触温度的影响规律,实验测量不同工况下的齿面接触温度。数值计算结果和实验结果表明,齿面接触温度在进入啮合位置和齿顶处达到最高,而在节点附近接近于室温。弹流润滑状态下齿面接触温度随着润滑油黏度增大而升高;在混合润滑状态下则相反;边界润滑状态下润滑油黏度与齿面接触温度无关;随着转速、转矩和齿侧间隙增大,齿面接触温度升高。研究结果可为齿面接触温度的计算和实验测量提供依据。In view of the important influence of tooth surface contact temperature on gear meshing pro cess,the calculation formulas of tooth surface contact temperature of spur gear under four different lubrication conditions are established based on Blok flash temperature theory.The distribution of tooth surface contact tem perature along the meshing line and the effects of rotational speed,torque,lubricant viscosity and backlash on tooth surface contact temperature are analyzed.The tooth contact temperature under different working conditions is measured.The numerical results and experimental results show that the contact temperature of the tooth sur face reaches the highest at the meshing position and addendum and it is close to the room temperature near the pitch circle.It is found that the contact temperature of tooth surface increases with the increase of lubricant vis cosity under EHL condition,but it is opposite under mixed lubrication condition.The lubricant viscosity has no obvious effect on the contact temperature of tooth surface under boundary lubrication condition,and the contact temperature of tooth surface increases with the increase of rotational speed,torque and backlash.The research results can provide a basis for the calculation and experimental measurement of the contact temperature of tooth surface.

关 键 词：直齿轮 齿面接触温度 润滑 数值计算 实验测量 

分 类 号：TH132.417[机械工程—机械制造及自动化]