多转速下隔膜压缩机传动部件强度分析  

Strength Analysis of Diaphragm Compressor Transmission Components at Various Speeds

作　　者：谌小倩 孙崇洲 张霄 何志龙[1] 杨能源 CHEN Xiao-qian;SUN Chong-zhou;ZHANG Xiao;HE Zhi-long;YANG Neng-yuan(School of Energy and Power Engineering,Xi′an Jiaotong University,Xi′an 710048,China;GUANGDONG FORAN TECHNOLOGY Co.,Ltd.,Foshan 528000,China)

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710048 [2]广东佛燃科技有限公司,广东佛山528000

出　　处：《压缩机技术》2025年第1期7-12,共6页Compressor Technology

摘　　要：氢能产业快速发展,隔膜压缩机市场迎来重大发展机遇,高速化是隔膜压缩机的重要发展方向,转速提升后对传动部件强度造成的影响直接关系到压缩机的性能和寿命。基于Ansys Workbench软件,将瞬态动力学运用在隔膜压缩机传动部件中,分析等效应力随转角的变化,并研究转速对等效应力的影响。结果表明曲轴、十字头销的最大等效应力在转角290°下出现,连杆的最大等效应力在转角180°下出现,十字头体、十字头衬套的最大等效应力在转角360°下出现。在300~700 r/min的转速范围内,曲轴的最大等效应力会随着转速的提高而逐渐减小。在等效应力的基础上进行疲劳分析,结果表明:该传动部件的强度符合设计要求。With the rapid development of hydrogen energy industry,the diaphragm compressor market has ushered in a major development opportunity,and high-speed is an important development direction of diaphragm compressors.At the same time,the impact on the strength of transmission components after the increase in speed is directly related to the performance and life of compressor.In this paper,based on Ansys Workbench,the transient dynamics was applied to the diaphragm compressor transmission components.The variation of the equivalent stress with the rotation angle was analyzed,and the effect of rotational speed on equivalent stress was also studied.The results show that the maximum equivalent stress of the crankshaft and crosshead pin occurs at the rotation angle of 290°,the maximum equivalent stress of the connecting rod occurs at the rotation angle of 180°,and the maximum equivalent stress of the crosshead body and crosshead bushing occurs at the rotation angle of 360°.In the speed range of 300~700 r·min-1,the maximum equivalent stress of the crankshaft gradually decreases with the increase of speed.Fatigue analysis was carried out on the basis of equivalent stress,and the strength of the transmission component meets the design requirements.

关 键 词：隔膜压缩机 传动部件 瞬态动力学 等效应力 疲劳分析 转速 

分 类 号：TH457[机械工程—机械制造及自动化]