渐开线重载齿轮传动的弹流润滑分析

Analysis of EHL of Heavy-duty Involute Gear Transmission

建立了重载齿轮传动的弹流润滑模型,采用多重网格法、多重网格积分法以及逐列扫描法,计算出压力、膜厚以及温度等。结果表明,固定润滑油黏度,随着润滑油黏度和齿面综合速度乘积的增大,平均膜厚单调增大,而次表面剪应力最大值单调减小。载荷越大,次表面剪应力最大值的X坐标位置越靠近出油口的位置。

A model is set up to analyze the elastohydrodynamic lubrication of the heavy - duty gear transmission, the pressure, film thickness and temperature, etc are calculated respectively by the multi - grid method, the multi - integration method and the column scanning method. The results show that with an increment of the lubricating oil vis- cosity and product of tooth surface integrated speed, the average film thickness increases and maximum surface shear stress monotonically decreases at the same time. The larger the load, the greater X coordinates of the maximum surface shear stress near the position of oil outlet in the premises of the lubricant viscosity.