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摆线针轮传动接触乏油润滑特性分析
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国家自然科学青年基金资助项目(51705043);湖北汽车工业学院博士科研启动基金资助项目(BK201701).


Analysis of Starved Lubrication Characteristics for a Cycloid Drive
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    摘要:

    摆线针轮行星传动啮合过程中供油量变化影响传动效率和接触疲劳特性。引入部分油膜厚度比例,以入口油膜厚度来表征乏油程度,建立摆线针轮有限长线接触乏油润滑数值模型,研究在齿宽方向上入口油膜厚度不均匀分布对压力和膜厚分布的影响。结果表明:乏油条件下,随着入口供油量增加,入口油膜厚度的不均匀分布对齿宽方向上的压力和膜厚分布的影响减小;随着速度的增加,齿宽方向压力和膜厚分布受入口油膜厚度不均匀分布的影响增加;随着载荷的增加,齿宽方向压力和膜厚分布受入口油膜厚度不均匀分布的影响程度减小。

    Abstract:

    A cycloid drive belongs to precision drive and its varying oilsupply layer during meshing process influences the transmission efficiency and the contact fatigue.The variable to describe the starved degree,i.e.,the fractional film content,was incorporated in Reynolds equation.A numerical finite line starved lubrication model was built and the effect of inlet oil film thickness of uniform distribution on the pressure and film thickness profile was investigated.The results show that under the starved lubrication condition,as the oilsupply layer increases, the effect of shape of inlet oil film thickness on the pressure and film profile is decreased.As the speed increases,the effect of shape of inlet oil film thickness on the pressure and film distribution is increased.However,as the load increase,the effect of shape of inlet oil film thickness on the pressure and film profile is decreased.

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孙章栋,任爱华,王红霞,宋俊.摆线针轮传动接触乏油润滑特性分析[J].润滑与密封,2019,44(7):69-77.
. Analysis of Starved Lubrication Characteristics for a Cycloid Drive[J]. Lubrication Engineering,2019,44(7):69-77.

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  • 在线发布日期: 2020-03-12
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