增压风机电机主轴裂纹分析  

Crack Analysis of Booster Fan Motor Spindle

作　　者：李会义 徐祖红 聂勤文 周纯 柴振界 容芷君[2] 但瑞 徐静雯 但斌斌[2] Li Huiyi;Xu Zuhong;Nie Qinwen;Zhou Chun;Chai Zhenjie;Rong Zhijun;Dan Rui;Xu Jingwen;Dan Binbin(Wisco Resources Group Ezhou pellet Co.,Ltd.,Ezhou 43600;Key Laboratory of Metallurgical Equipment and Control,Ministry of Education,Hubei Wuhan University of Science and Technology,Wuhan 430081;Jingchu Institute of Technology intelligent manufacturing School,Jingmen 448000;Hubei University Manchester United College,Wuhan 430062)

机构地区：[1]武钢资源集团鄂州球团有限公司,湖北鄂州436000 [2]武汉科技大学冶金装备及其控制教育部重点实验室,湖北武汉430081 [3]荆楚理工学院智能制造学院,湖北荆门448000 [4]湖北大学曼城联合学院,湖北武汉430062

出　　处：《冶金设备》2025年第1期57-62,共6页Metallurgical Equipment

基　　金：湖北省重点研发计划项目(2023BAB046,2022BAA059);武汉市重点研发项目(2023010402010603,2024010702030103)。

摘　　要：风机电机主轴是动力传输和负载承载的关键部件,直接影响风机系统的稳定性、寿命、效率和振动特性。本文通过主轴强度有限元分析和集中惯量模型的扭转振动模态分析以及谐响应分析,确定电机主轴断裂的主要原因为变频器V/F控制下的扭矩脉动。提出以矢量控制替换V/F控制的改进控制方法,以此提高动态响应精度,减少扭矩波动,降低扭振风险,显著提升电机主轴的可靠性和寿命。Fan motor spindle is the key component of power transmission and load bearing,which directly affects the stability,life,efficiency and vibration characteristics of fan system.Based on the finite element analysis of spindle strength,torsional vibration mode analysis and harmonic response analysis of the concentrated inertia model,the main reason of motor spindle fracture is determined to be the torque pulsation under the control of inverter V/F.An improved control method based on vector control replacing V/F control is proposed to improve dynamic response accuracy,reduce torque fluctuation,reduce torsional vibration risk,and significantly improve the reliability and life of motor spindle.

关 键 词：电机主轴 裂纹 有限元 扭振 

分 类 号：TF046.4[冶金工程—冶金物理化学]