材料填充对滤波减速器啮合力与润滑特性的影响

发布时间：2018-06-16 00:08

本文选题：滤波减速器 + 材料填充　；参考：《四川大学学报(工程科学版)》2016年05期

【摘要】：为提高滤波减速器寿命,设计在齿上开槽,并在槽内填充紫铜、硬铝合金、尼龙1010、丁晴橡胶的新型结构。建立了滤波减速器在不同位置啮合的有限元模型,计算了不同填充材料齿轮在不同啮合位置的啮合力。在此基础上建立了考虑齿面粗糙度的滤波减速器混合润滑模型,分析了转速对不同填充材料滤波减速器润滑特性的影响。有限元模型计算结果表明:材料填充可以增加滤波减速器轮齿啮合对数,有效减小啮合力,齿面最大接触力随着填充材料弹性模量的减小而减小。润滑计算结果表明,材料填充可以增大齿面间平均油膜厚度,有效提高滤波减速器润滑性能。在转速小于1 500 r/min时,通过材料填充可以降低接触面积比,转速大于1 500 r/min时,材料填充对接触面积比的影响不明显;在啮入啮出点时,转速大于1 500 r/min时,材料填充可以降低滤波减速器齿面最大接触应力,转速小于1 500 r/min时,最大接触应力随填充材料弹性模量的变化规律不明显;节点啮合时,丁晴橡胶和尼龙1010可以显著降低齿面最大接触应力。
[Abstract]:In order to improve the life of the filter reducer, a new type of structure was designed, in which the teeth were slotted and filled with copper, hard aluminum alloy, nylon 1010 and butadiene rubber. A finite element model for meshing of filter reducer in different positions is established, and the meshing forces of gears with different filling materials are calculated. On this basis, the mixed lubrication model of filter reducer considering tooth surface roughness is established, and the influence of rotating speed on the lubricating characteristics of filter reducer with different filling materials is analyzed. The results of finite element model show that the material filling can increase the meshing logarithm of the gear teeth of the filter reducer and reduce the meshing force effectively. The maximum contact force of the tooth surface decreases with the decrease of the elastic modulus of the filling material. The results of lubrication calculation show that the material filling can increase the average oil film thickness between tooth surfaces and effectively improve the lubricating performance of filter reducer. When the rotational speed is less than 1 500 r/min, the contact area ratio can be reduced by material filling. When the rotational speed is greater than 1 500 r/min, the contact area ratio will not be affected obviously by the material filling, and when the speed is larger than 1 500 r/min, the contact area ratio will be decreased when the rotational speed is less than 1 500 r/min. The material filling can reduce the maximum contact stress on the tooth surface of the filter reducer. When the rotational speed is less than 1 500 r/min, the maximum contact stress changes with the elastic modulus of the filling material is not obvious. Butadiene rubber and nylon 1010 can significantly reduce the maximum contact stress on the tooth surface.
【作者单位】：四川大学空天科学与工程学院;重庆大学机械传动国家重点实验室;四川大学制造科学与工程学院;
【基金】：国家自然科学基金资助项目(51435001;51375506)
【分类号】：TH132.46

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