脂润滑条件下塑料齿轮稳态温度场仿真与试验研究

为预测塑料齿轮的脂润滑条件下的稳态温度,建立了考虑温度-模量效应和摩擦热流-滞后热通量多热源效应的塑料齿轮运行温度场有限元数值模型,研究了塑料齿轮稳态温度场的分布规律以及载荷和转速水平对稳态温度的影响.研究结果表明,稳态温度场的温度沿着齿廓内法线方向逐渐降低,在内法线方向0.5 mm深度处的温度约为表面温度的90％,稳...

Simulation and Experimental Study of Steady-state Temperature Field of Plastic Gears under Grease Lubrication Conditions#br#

In order to predict the steady-state temperature of plastic gears under grease lubrication conditions， a finite element numerical model of plastic gear operating temperature field was established based on the temperature-modulus effect and the friction heat flux-hysteresis heat flux multi heat source effect. The distribution of plastic gear steady-state temperature field and the influences of load and speed levels on steady-state temperature were studied. The results show that the temperature of steady-state temperature field decreases gradually along the normal direction of the tooth profiles， and the temperature in the depth of 0.5 mm in the inner normal direction is about 90% of the surface temperature， and the steady-state temperature increases with the increasing of loads or speeds gradually. And the operating temperature tests of POM-POM gear pairs were carried out under grease lubrication conditions and the test results are in good agreement with the simulation ones. This study may pave way to the transmission design of heavy-loading plastic gears.