摘要
针对目前对主轴性能的检测大都是单一性能检测,开展微型气动涡轮主轴综合实验,以准确分析其性能。采用高精度传感器同时测量主轴转速、振动加速度、径向跳动和温度,研究主轴在启动、稳定运行和停止阶段性能参数变化规律及其耦合关系。结果表明:启动阶段,转速增加,径向跳动增大,前端温差先降低后趋于平稳,最大下降0.35℃,后端温差先降低后逐渐上升,最大下降0.15℃;稳定运行阶段,主轴最高转速达到1.105023×105 r/min,主轴转速、振动加速度和温度变化趋势一致,径向跳动减小;停止阶段,主轴转速迅速下降,内部流场失去平衡使主轴出现剧烈振动,径向出现不稳定跳动,前后端温度上升,为微型气动涡轮主轴性能和结构参数间相互关系的研究提供实验验证方法。
In view most of the current test on the performance of spindle are single performance test,the comprehensive experiments of the micro pneumatic turbine spindle were carried out to accurately analyze its performance.High-precision sensors were used to simultaneously measure spindle speed,vibration acceleration,radial runout,and temperature.The variation patterns and coupling relationships of spindle performance parameters during startup stage,stable operation stage and stop stage were investigated.The results show that during startup stage,as the spindle speed increases,the radial runout increases;the temperature difference at the front-end first decreases and then tends to be stable,showing a maximum decrease of 0.35℃,while the rear-end temperature difference decreases and then tends to be stable,with a maximum decrease of 0.15℃.During the stable operation stage,the maximum spindle speed reaches 1.105023×105 r/min;the changing trends of the main shaft speed,vibration acceleration and temperature are consistent,while radial runout decreases.During the stop stage,the spindle speed decreases rapidly,causing severe vibration due to imbalance internal flow,radial unstable runout,and an increase in temperatures at both front and rear ends.It provides test method for the research on the relationship between performance of micro pneumatic turbine spindle and structure parameters.
作者
王晴
高翔
金杰
章聪
冯娟
王鹏峰
陈源
李运堂
WANG Qing;GAO Xiang;JIN Jie;ZHANG Cong;FENG Juan;WANG Pengfeng;CHEN Yuan;LI Yuntang(College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou Zhejiang 310018,China;College of Modern Science and Technology,China Jiliang University,Jinhua Zhejiang 322002,China)
出处
《机床与液压》
北大核心
2025年第13期84-89,共6页
Machine Tool & Hydraulics
基金
浙江省自然科学基金重点项目(LZ23E050002)
浙江省博士后科研择优项目(ZJ2023121)。
关键词
微型主轴
气动涡轮
性能实验
耦合关系
micro spindle
pneumatic turbine
performance experiment
coupling relationships
