中国机械工程 ›› 2026, Vol. 37 ›› Issue (9): 2251-2258.DOI: 10.3969/j.issn.1004-132X.2026.09.017

• 机械基础工程 • 上一篇    

非轴对称双列深沟球轴承密封单元接触特性影响机理与失效准则

李佳琪1(), 邱明1(), 董艳方1, 曲琼2, 刘强2   

  1. 1.河南科技大学机电工程学院, 洛阳, 471003
    2.洛阳轴承集团股份有限公司, 洛阳, 471000
  • 收稿日期:2025-05-12 出版日期:2026-09-25 发布日期:2026-10-21
  • 通讯作者: 邱明
  • 作者简介:李佳琪,女,2000年生,硕士研究生。研究方向为滚动轴承设计与性能分析。E-mail:15137938932@163.com
    邱明*(通信作者),女,1969年生,教授、博士研究生导师。研究方向为滚动轴承设计与性能分析。E-mail: qiuming@haust.edu.cn。
  • 基金资助:
    国家自然科学基金(52275186)

Influence Mechanism of Contact Characteristics and Failure Criterion for Sealing Units in Non-axisymmetric Double-row Deep Groove Ball Bearings

LI Jiaqi1(), QIU Ming1(), DONG Yanfang1, QU Qiong2, LIU Qiang2   

  1. 1.School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang,Henan,471003
    2.Luoyang Bearing Group Co. ,Ltd. ,Luoyang,Henan,471000
  • Received:2025-05-12 Online:2026-09-25 Published:2026-10-21
  • Contact: QIU Ming

摘要:

借助有限元方法对双列深沟球轴承密封单元进行三维分析,采用多元回归分析和主成分分析,揭示了密封圈内径、密封圈圆角半径、卡环内径和内圈圆角半径对密封单元接触特性影响程度的强弱;探究了这4种参数对双列深沟球轴承密封单元接触特性的影响机理。结果表明:结构参数对密封单元接触特性的影响程度由大到小依次为密封圈内径、内圈圆角半径、密封圈圆角半径、卡环内径;改变前3个因素会改变密封圈与内圈接触部位的接触形貌,进而改变单一因素的梯度变化规律。优化后最小有效接触应力提高16.28%,摩擦力降低30.95%。通过试验验证了有限元计算方法及密封单元接触特性计算结果的准确性。

关键词: 双列深沟球轴承, 密封单元, 接触特性, 多元统计分析, 失效准则

Abstract:

A 3D analysis of the sealing unit of a double-row deep groove ball bearing was carried out using finite element method. The degree to which the inner diameter of the sealing ring, the sealing ring fillet radius, the inner diameter of the retaining ring, and the inner ring fillet radius affect the contact characteristics of the sealing unit was revealed through multiple regression analyses and principal component analyses. The mechanisms by which these four parameters influence the contact characteristics of the double-row deep groove ball bearing sealing unit were also explored. Results show that the influence of structural parameters on the contact characteristics of the sealing unit decreases in the order: sealing ring inner diameter, inner ring fillet radius, sealing ring fillet radius, and retaining ring inner diameter. Changes in the first three parameters alter the contact morphology at the sealing ring-inner ring interface, thereby modifying the single-factor response trends. After optimization, the minimum effective contact stress increases by 16.28%, while the frictional force decreases by 30.95%. The accuracy of the finite element method and the calculated contact characteristics was verified by experiments.

Key words: double-row deep groove ball bearings, sealing unit, contact characteristic, multivariate statistical analysis, failure criterion

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