液体静压推力轴承设计与FLUENT仿真分析

发布时间：2018-05-05 02:10

本文选题：轴承振动检测仪 + 液体静压推力轴承　；参考：《机械设计与制造》2017年09期

【摘要】：轴承的振动检测是轴承生产检测中的重要环节,轴承振动检测仪是轴承振动检测的重要检测仪器。根据2010年4月起实施的新的滚动轴承振动测量方法,针对测量最大外径为200mm的深沟球轴承振动检测仪主轴系统轴向承载能力不足问题,基于经典流体力学公式,对其主轴系统中的关键部件液体静压推力轴承进行了详细设计与计算。所设计的推力轴承在最大轴向载荷990N作用时,轴向位移为2.6μm。在空载静止满足条件基础上,运用模拟仿真软件FLUENT对所设计的结构进行仿真分析,得出随主轴转速的提高油膜刚度程线性增加,而流量不随主轴转速的提高而改变。进一步分析得知,环形油腔推力轴承在主轴旋转时其动压效应主要产生在油腔及内外缘出油间隙处。该液体静压推力轴承,设计合理可靠,可供同类别产品主轴系统提供设计参考。
[Abstract]:Bearing vibration detection is an important link in bearing production detection. Bearing vibration detector is an important testing instrument for bearing vibration detection. According to the new vibration measurement method of rolling bearing implemented since April 2010, aiming at the problem of insufficient axial bearing capacity of the spindle system of measuring the maximum outer diameter of the deep groove ball bearing vibration detector (200mm), this paper bases on the classical hydrodynamic formula. The hydrostatic thrust bearing, a key component of its spindle system, is designed and calculated in detail. When the maximum axial load is 990N, the axial displacement of the thrust bearing is 2.6 渭 m. On the basis of no-load static condition, the designed structure is simulated and analyzed by using the simulation software FLUENT. It is concluded that the oil film stiffness range increases linearly with the increase of the spindle speed, but the flow rate does not change with the increase of the spindle speed. Further analysis shows that the dynamic pressure effect of annular oil cavity thrust bearing mainly occurs in the oil cavity and the inner and outer edge of the oil outlet clearance when the spindle rotates. The hydrostatic thrust bearing is reasonably and reliably designed and can be used as a reference for the design of the spindle system of the same kind of products.
【作者单位】：大连理工大学机械工程学院;
【基金】：创新研究群体科学基金资助项目(51321004)
【分类号】：TH133.36

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