主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2023, Vol. 48 ›› Issue (10): 129-133.DOI: 10.16638/j.cnki.1671-7988.2023.010.027

• 测试试验 • 上一篇    下一篇

机械旋转轴类件的油封结构参数对油封性能的 影响分析

周中华   

  1. 中海油田服务股份有限公司
  • 出版日期:2023-05-30 发布日期:2023-05-30
  • 通讯作者: 周中华
  • 作者简介:周中华（1994—），男，初级工程师，研究方向为机械设计制造及其自动化，E-mail:493740746@qq.com。

Analysis of the Influence of the Oil Seal Structure Parameters of the Mechanical Rotating Shaft Parts on the Oil Seal Performance

ZHOU Zhonghua   

  1. China Oilfield Services Company Limited
  • Online:2023-05-30 Published:2023-05-30
  • Contact: ZHOU Zhonghua

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摘要： 油封结构设计的合理性对于油封综合性能有着较大影响。文章利用 ABAQUS 软件建立 油封的有限元分析模型，采用有限元方法对油封在静态和动态下的密封性能进行模拟，探讨 油封结构参数对曲轴油封的性能的影响，进而为结构设计提出理论基础。结果表明，在所分 析的油封结构参数范围内，曲轴油封唇口两侧的接触压力呈不对称分布，随着油侧唇角、过 盈量和理论接触宽度 R 值的增大，曲轴油封的最大接触压力呈现减小趋势；随着气侧唇角、 弹簧劲度系数和腰厚的增大，曲轴油封的最大接触压力呈现增大趋势；随着过盈量、弹簧劲 度系数和腰厚的增大，曲轴油封的单位周长径向力呈现增大趋势。建议安装过盈量 δ 为 0.78 mm， 油封腰厚为 0.09 mm 左右的油封，可缓解油封唇口磨损，弹簧的劲度系数为 0.869 N/mm 左右 具有良好的密封性能；气侧唇角 β 为 30°左右可延长油封使用寿命。

关键词: 曲轴油封结构；油封结构参数；ABAQUS 软件；机械旋转轴类件

Abstract: The rationality of oil seal structure design has a great impact on the comprehensive performance of oil seal. In this paper, ABAQUS software is used to establish the finite element analysis model of the oil seal, and the finite element method is used to simulate the sealing performance of the oil seal under static and dynamic conditions, and the influence of the structural parameters of the oil seal on the performance of the crankshaft oil seal is discussed, and then a theoretical basis is put forward for the structural design. The results show that the contact pressure on both sides of the crankshaft oil seal lip is asymmetrically distributed within the range of the analyzed oil seal structural parameters, and the maximum contact pressure of the crankshaft oil seal decreases with the increase of the oil side lip angle, interference and theoretical contact width R value; the maximum contact pressure of crankshaft oil seal increases with the increase of air side lip angle, spring stiffness coefficient and waist thickness; and with the increase of interference, spring stiffness coefficient and waist thickness, the radial force per unit circumference of crankshaft oil seal increases. Ecommended installation interference δ at 0.78 mm, the waist thickness of the oil seal is around 0.09 mm, which can alleviate the wear of the oil seal lip, and the stiffness coefficient of the spring is about 0.869 N/mm, which has good sealing performance; air side lip angle β the service life of oil seal can be extended at about 30°.

Key words: Crankshaft oil seal structure; Oil seal structural parameters; ABAQUS software; Mechanical rotating shaft parts