基于ABAQUS的油封密封性能研究

发布时间：2018-07-22 11:17

【摘要】：利用ABAQUS有限元分析软件模拟和分析旋转轴唇形油封在静态和动态2种状态下的密封性能。通过轴向推动建模方法,建立静态条件下油封的二维有限元模型,并分别对有无弹簧2种情况下的过盈量、弹簧劲度系数及理论接触宽度对油封静态密封指标接触压力和接触宽度的影响进行分析。在动态条件下建立油封的三维有限元模型,并分析旋转轴转速和唇口与轴之间的摩擦因数对油封摩擦力和摩擦扭矩的影响。分析结果表明,过盈量相同的情况下,带弹簧的油封密封性能高于不带弹簧的油封,且油封的密封性能随弹簧劲度系数的增加而提高,随理论接触宽度的增大而降低;密封的摩擦扭矩随摩擦因数的增加而增大,但轴的转速变化对其影响不大。
[Abstract]:Abaqus finite element analysis software is used to simulate and analyze the seal performance of rotary shaft lip seal under static and dynamic conditions. The two-dimensional finite element model of the oil seal under static condition is established by the method of axial driving modeling, and the interference amount of the oil seal under two kinds of conditions with or without a spring is calculated respectively. The effects of spring stiffness coefficient and theoretical contact width on contact pressure and contact width of oil seal static seal were analyzed. Three-dimensional finite element model of oil seal was established under dynamic conditions. The effects of rotational speed of rotary shaft and friction coefficient between lip and shaft on friction force and friction torque of oil seal were analyzed. The results show that the seal performance of oil seal with spring is higher than that of oil seal without spring, and the seal performance of oil seal increases with the increase of spring stiffness coefficient and decreases with the increase of theoretical contact width. The friction torque of seal increases with the increase of friction coefficient, but the change of shaft speed has little effect on it.
【作者单位】：天津科技大学机械工程学院;天津市轻工与食品工程机械装备集成设计与在线监控重点实验室;
【基金】：国家自然科学基金项目(51075300)
【分类号】：TH136

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