液压与气动2026，Vol.50Issue(4)：22-27,6.DOI:10.11832/j.issn.1000-4858.2026.04.003
新型组合密封结构设计与密封性能分析
Structure Design and Sealing Performance Analysis for New Combined Seal
摘要
Abstract
To address the severe wear and leakage of conventional combined seals in servo motors under dynamic sealing conditions,a novel combined seal configuration is proposed by exploiting the complementary characteristics of an X-ring,an O-ring and a rectangular ring.A two-dimensional axisymmetric finite-element model is established in ANSYS and used to compare the proposed design with the conventional structure under identical parameters.Based on the contact-stress distribution,the Reynolds equation is inversely solved to obtain the oil-film thickness distribution,from which the leakage rate and friction force are calculated.In addition,an L9(34)orthogonal design is conducted,with leakage rate as the response to quantitatively evaluate the effects of compression ratio,medium pressure and friction coefficient.The results indicate that the proposed structure yields a more reasonable stress distribution,with a 6.9%reduction in leakage and a 2.5%reduction in friction.The orthogonal analysis further shows that medium pressure is the dominant factor,followed by compression ratio,whereas the friction coefficient has the weakest influence.关键词
伺服马达/组合密封/动密封/结构优化Key words
servo motor/combined seals/dynamic seals/structural optimizations分类
机械制造引用本文复制引用
王晓晶,楚修远,袁孙梦..新型组合密封结构设计与密封性能分析[J].液压与气动,2026,50(4):22-27,6.基金项目
国家自然科学基金(52375037) （52375037）
北京建筑大学杰出青年基金(GDRC20220801) （GDRC20220801）
北京建筑大学研究生创新基金(PG2024142) （PG2024142）
北京建筑大学培育项目专项资金(X24026) （X24026）
