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| Research on the lubricating property of filtering gear reducer |
| QIN De-cheng,WANG Jia-xu,YANG Rong-song, ZHANG Lin-chuan |
| School of Manufacture Science and Engineering, Sichuan Univercity, Chengdu 610065, China |
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Abstract In order to analyze the influence of meshing position, load and rotating speed on the lubrication properties of filtering reducer, an internal-meshing lubrication model of filtering reducer was established, the Newton-Raphson(FEM) method was employed to solve the elastohydrodynamic lubrication equations. The complete numerical solution was obtained by a numerical calculation method with Matlab software. The film pressure and film thickness of lubricant between the two teeth of the reducer at different meshing positions, loads and rotating speeds had been calculated. The lubrication condition of different meshing positions, loads and rotating speeds was analyzed. The effects of meshing position, normal load and rotating speed on lubrication features were obtained. The results show that the values of hydrodynamic film thickness at engaging-in region, engaging-out region and pitch point are different; the thinnest film thickness occurs at the pitch point; the film thickness becomes larger with the increase of rotating speed and the decrease of load. The hydrodynamic pressure also becomes larger with the increase of load, but changes little when the rotating speed increases.
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Published: 15 April 2012
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滤波减速器润滑特性研究
为了研究啮合位置、载荷、转速等因素对滤波减速器润滑特性的影响, 建立了滤波减速器的内啮合润滑模型,将牛顿(有限元)法应用到弹流润滑方程组的求解中,利用Matlab软件，采用数值计算方法,实现了弹流润滑方程组的完全数值解,得到了滤波减速器轮齿在不同啮合位置、不同载荷以及不同转速下啮合轮齿表面油膜压力和油膜厚度值,分析了不同啮合位置、不同载荷以及不同转速下轮齿所处的润滑状态,得到了啮合位置、载荷以及转速等因素对轮齿润滑特性的影响规律.结果表明：在轮齿的啮入、啮出及节点处,润滑薄膜厚度值不一样,节点处的润滑膜厚值最小；载荷增大时,轮齿表面油膜压力会变大,而油膜厚度会变小；转速增高时,油膜厚度会变大,而油膜压力变化不大.
关键词：
滤波减速器,
牛顿法,
润滑,
啮合位置,
载荷,
转速
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