高速精密电主轴转子动力学研究进展  

Rotor Dynamics of High-Speed Precision Motorized Spindle

作　　者：蒋书运[1] JIANG Shuyun(State Key Laboratory of Mechanics and Control for Aerospace Structures,Nanjing University of Aeronautics and Astronautics Nanjing,210016,China)

机构地区：[1]东南大学机械工程学院,南京211189

出　　处：《振动.测试与诊断》2025年第2期211-218,406,共9页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(12172088,51635004,11472078,50775036,50475073)。

摘　　要：现代高速精密切削对电主轴动态性能的要求不断提高,结构的复杂化、运行的高速化、轴承的多样化向电主轴转子动力学设计提出了新的挑战。针对此问题,综合运用滚动轴承分析理论、流体润滑理论与转子动力学理论,建立滚动轴承电主轴、空气轴承电主轴、水润滑轴承电主轴与组合轴承电主轴转子动力学模型,并开发了计算软件。基于性能分析结果,设计了多款高速精密电主轴产品。结果表明:取得的电主轴转子动力学成果为电主轴动态设计提供了理论支撑,所设计的高速精密电主轴产品在国内高端数控装备中获得成功应用,解决了核心功能部件的国产化难题。The demand of modern high-speed precision cutting on the high dynamic performance of motorized spindle is increasing.,and the complexity of structure,the high speed of operation,and the diversity of bearings present new challenges to the rotor dynamics design of the motorized spindle.To solve this problem,the rotor dynamics models for the motorized spindle supported by rolling bearing,air bearing,water-lubricated bearing and combined bearings are established with using the rolling bearing analysis theory,the fluid lubrication theory and the rotor dynamics theory,and calculation software is developed.Based on the analysis results,a number of high-speed precision motorized spindles are designed.The results show that the obtained results of the rotor dynamics provide theoretical support for the design of motorized spindle.The designed high-speed precision motorized spindle have been applied in the domestic computer numerical control machine tools,solving the problem of localization of the core functional components.

关 键 词：电主轴 转子动力学 滚动轴承分析 润滑理论 

分 类 号：TH12[机械工程—机械设计及理论]