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齿面凹坑参数对面齿轮等温弹流润滑的影响
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Influence of Tooth Surface Pits of Facegears on Isothermal Elastohydrodynamic Lubrication
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    摘要:

    根据微分几何基本理论求出面齿轮曲率半径,由齿面相对运动求得面齿轮传动过程中卷吸速度,建立面齿轮等温弹流润滑模型,通过FORTRAN语言编程计算出齿面油膜厚度,分析凹坑直径和深度对油膜膜厚的影响,并通过实验验证理论计算的准确性。研究结果表明:齿轮从啮入到啮出过程中,油膜厚度沿啮合轨迹逐渐增大;当齿面凹坑直径在50~200 μm时有增加油膜厚度的作用,其中凹坑直径为100 μm时效果最优;当齿面凹坑深度在5~20 μm时均有增加油膜厚度的效果,存在最优深度为10 μm。

    Abstract:

    The curvature radius of gear was calculated according to the basic theory of differential geometry,and the entrainment velocity was calculated during facegear meshing process by the relative movement of the tooth surface.The isothermal elastohydrodynamic lubrication model of the facegear was established.The oil film thickness of the tooth surface was calculated through the FORTRAN language programming,and the influence of the pit diameter and depth on the film thickness was analyzed.The accuracy of theoretical calculation was verified by experiments.The results show that from the beginning of the facegear meshing process to disengagement,the film thickness is increased gradually along the meshing track.When the pit diameter of the tooth surface is from 50 μm to 200 μm,the oil film thickness is increased,and the optimum pit diameter is 100 μm.When the pit depth of the tooth surface is from 5 μm to 20 μm,the oil film thickness is increased,and the optimum depth is 10 μm.

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何国旗.齿面凹坑参数对面齿轮等温弹流润滑的影响[J].润滑与密封,2017,42(2):67-72.
. Influence of Tooth Surface Pits of Facegears on Isothermal Elastohydrodynamic Lubrication[J]. Lubrication Engineering,2017,42(2):67-72.

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  • 在线发布日期: 2018-05-25
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