轴颈倾斜对稳态滑动轴承性能的影响

发布时间：2018-05-24 20:21

本文选题：倾斜轴颈 + 质量守恒模型　；参考：《机械设计与制造》2017年05期

【摘要】：在稳定状态下,当滑动轴承轴颈倾斜时,应用质量守恒模型,分析不同的轴颈倾斜角和倾斜方位对轴承的压力分布、最小油膜厚度、油膜最大压力、轴承的承载能力、摩擦系数以及空穴分布的影响。计算结果表明:与轴颈不倾斜时相比,当轴颈倾斜时,随着倾斜角增大,最小油膜厚度减小,油膜压力峰值增大,最小油膜厚度和油膜压力峰值的位置向轴承端部移动,轴承承载能力增大,摩擦系数变化微小,空穴区域形状由半圆形转变成新月形,倾斜角对轴承上述参数的影响大于倾斜方位的影响。较大的倾斜角可能会引起轴瓦磨损和振动,对轴承稳定运行有害,应尽量避免。
[Abstract]:In the stable state, when the journal bearing is inclined, the mass conservation model is applied to analyze the pressure distribution of the bearing, the minimum oil film thickness, the maximum oil film pressure, the bearing capacity of the bearing, the friction coefficient and the hole distribution. The calculation results show that the axle neck is not inclined when the journal is not inclined. When the angle of the neck is inclined, the minimum oil film thickness decreases and the peak of oil film pressure increases. The position of the minimum oil film thickness and the peak of oil film pressure moves to the end of the bearing. The bearing capacity of the bearing increases and the friction coefficient changes slightly. The shape of the cavity is changed from semicircle to crescent shape, and the influence of the inclination angle on the above parameters of the bearing is greater than that of the bearing. The larger inclination angle may cause the wear and vibration of the bearing bush, which is harmful to the stable operation of the bearing and should be avoided as far as possible.
【作者单位】：武汉科技大学机械自动化学院;
【基金】：国家自然科学基金(51175332) 武汉科技大学冶金装备及其控制教育部重点实验室开放基金(2013A15)
【分类号】：TH133.31

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