Estimation and improvement method of mesh efficiency of cylindrical gears
Estimation and improvement method of mesh efficiency of cylindrical gears
复制标题
圆柱齿轮啮合效率的估算与改进方法
DOI：
10.1299/kikaic.78.1250
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
S. Matsumoto
中科院分区：
文献类型：
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作者：
Kunihiko Morikawa;Ryuta Nishihara;S. Matsumoto
为了提高汽车变速器的传动效率，更需要对齿轮的尺寸和齿面进行修形，以降低齿轮啮合功率损失。在我们的研究中，我们开发了预测程序，并检查了一些减少网格功率损耗的方法。为了准确预测变速器齿轮的啮合功率损失，需要估算齿轮啮合面的摩擦系数。但在混合润滑条件下，如齿轮啮合条件下，还没有一个高精度的摩擦系数计算公式。作者之一提出了新的摩擦系数估算公式。本文证实了所提出的估算公式的有效性，并通过几个齿轮副试验验证了应用所提出的摩擦系数估算公式的啮合功率损失预测程序。通过该预测程序和一些实验，讨论了齿轮尺寸、齿面修形、齿面粗糙度和传动条件对啮合功率损失的影响。
For the purpose of improving the efficiency of automotive transmission, there is a greater need to modify even the gear dimensions and tooth surface for reducing gear mesh power loss. In our study, we developed the prediction program and examined some reduction methods of the mesh power loss. To predict the mesh power loss of transmission gears accurately, it is necessary to estimate the friction coefficient at tooth meshing surface. But there was no formula with high accuracy for useful estimation of friction coefficient under mixed lubrication condition such as gear meshing condition. The one of authors proposed the new estimation formula of friction coefficient. In this paper, the usefulness of proposed estimation formula is confirmed and the prediction program of mesh power loss applying the proposed estimation formula of friction coefficient is also validated by several gear pair tests. From this prediction program and some experiments, the influence of gear dimensions, tooth surface modification, tooth surface roughness and driving condition on mesh power loss is discussed.