一种MEMS的微小滚动体动平衡测试系统
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摘要
针对微小滚动体质量小、驱动难度大、不平衡量微小等特点,提出了基于MEMS的微小滚动体动平衡测试系统,分析摆架参数对动平衡测试系统振动特性的影响,把MEMS加速度传感器对称嵌入到摆架支撑上,来测量摆架振动加速度,并用经打孔处理的电路板直接作为摆架支撑,优化后的摆架质量更小,测试系统的成本更低,灵敏度更高,操作更加简便。试验数据表明,该测试系统能够实现微小滚动体动平衡检测,且具有性能稳定、灵敏度高、成本低、适用范围广等特点。
Aiming at the characteristics of small mass,small driving force and small unbalance,this paper puts forward a MEMS-based dynamic balancing testing system.The influence of swinging parameters is analyzed on the vibration characteristics of the dynamic balance testing system. The MEMS acceleration sensor is symmetrically embedded on the support of the swing frame and measure the swing vibration acceleration. The circuit board is directly used as the support of the frame with punching processing. After optimization,the pendulum is lower quality,lower cost,higher sensitivity and easier operation. The test data show that the testing system proposed in it can realize the dynamic balance detection of small rolling elements,and has the characteristics of stable performance,high sensitivity,low cost and wide application range.
Aiming at the characteristics of small mass,small driving force and small unbalance,this paper puts forward a MEMS-based dynamic balancing testing system.The influence of swinging parameters is analyzed on the vibration characteristics of the dynamic balance testing system. The MEMS acceleration sensor is symmetrically embedded on the support of the swing frame and measure the swing vibration acceleration. The circuit board is directly used as the support of the frame with punching processing. After optimization,the pendulum is lower quality,lower cost,higher sensitivity and easier operation. The test data show that the testing system proposed in it can realize the dynamic balance detection of small rolling elements,and has the characteristics of stable performance,high sensitivity,low cost and wide application range.
引文
[1]刘曦泽,段滋华,李多民.转子动平衡技术的研究现状和进展[J].广东石油化工学院学报,2012(3):69-72+80.(Liu Xi-ze,Duan Zi-hua,Li Duo-min.Research status and developmentof rotor balancing technology[J].Journal of Guangdong Institute of Petr-ochemical Technology,2012(3):69-72+80.)
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[6]姜海军,李济顺,李丽红.轴承滚子不平衡量测试方法[J].轴承,2014(7):51-55.(Jiang Hai-jun,Li Ji-shun,Li Li-hong.Detecting method for unbalanceof bearing rollers[J].Bearings,2014(7):51-55.)
[7]王景龙.软支撑平衡机在刚性接轴动平衡试验上的应用[J].设计与计算,2011(4):35-37.(Wang Jing-long.Application of balancing machine with soft support indynamic balance test of spindle rigidity[J].Design and Calculation,2011(4):35-37.)
[8]李菊丽,张志远,郭华锋.刚性转子动平衡的关键技术分析[J].制造技术与机床,2010(11):89-94.(Li Ju-li,Zhang Zhi-yuan,Guo Hua-feng.Analysis on key technologiesof rigid rotors dynamic balance[J].Manufacturing Technology&MachineTool,2010(11):89-94.)
[9]伍良生,晁慧泉,张仕海.基于最小二乘法的转子不平衡振动信号的提取[J].机械设计与制造,2012(2):194-196.(Wu Liang-sheng,Chao Hui-quan,Zhang Shi-hai.Extraction of unbal-ance vibration signal of rotor based on least square method[J].Mechan-ical Design And Manufacturing,2012(2):194-196.)
[2]周永举,韩捷,雷文平.全矢动平衡放法在卧螺离心机上的应用研究[J].机械设计与制造,2014(9):195-197.(Zhou Yong-ju,Han Jie,Lei Wen-ping.Application research of fullvector dynamic balancing on horizontal screw centrifuge[J].MechanicalDesign and Manufacturing,2014(9):195-197.)
[3]郑建彬,黎明发,陈庆虎.超微型转子动平衡测试机不平衡量提取[J].中国机械工程,2003,14(6).(Zheng Jian-bin,Li Ming-fa,Chen Qing-hu.Extraction for unbalance insuper miniature-rotor dynamic balance measurement device[J].ChinaMechanical Engineering,2003,14(6).)
[4]林桂平,廖明夫,刘展翅.基于动平衡的转子动力学模型的验证方法[J].机械科学与技术,2014,12(33):1921-1924.(Lin Gui-ping,Liao Ming-fu,Liu Zhan-chi.The validation method ofthe rotor dynamic model based on the rotor balance[J].Mechanical Scie-nce And Technology,2014,12(33):1921-1914.)
[5]隋新,刘春阳,李济顺.新型圆柱滚子动平衡测量机用摆架的设计[J].轴承,2014(8):39-42.(Sui Xin,Liu Chun-yang,Li Ji-shun.Design of new swing frame for dy-namic balancing measuring machine of cylindrical rollers[J].Bearings,2014(8):39-42.)
[6]姜海军,李济顺,李丽红.轴承滚子不平衡量测试方法[J].轴承,2014(7):51-55.(Jiang Hai-jun,Li Ji-shun,Li Li-hong.Detecting method for unbalanceof bearing rollers[J].Bearings,2014(7):51-55.)
[7]王景龙.软支撑平衡机在刚性接轴动平衡试验上的应用[J].设计与计算,2011(4):35-37.(Wang Jing-long.Application of balancing machine with soft support indynamic balance test of spindle rigidity[J].Design and Calculation,2011(4):35-37.)
[8]李菊丽,张志远,郭华锋.刚性转子动平衡的关键技术分析[J].制造技术与机床,2010(11):89-94.(Li Ju-li,Zhang Zhi-yuan,Guo Hua-feng.Analysis on key technologiesof rigid rotors dynamic balance[J].Manufacturing Technology&MachineTool,2010(11):89-94.)
[9]伍良生,晁慧泉,张仕海.基于最小二乘法的转子不平衡振动信号的提取[J].机械设计与制造,2012(2):194-196.(Wu Liang-sheng,Chao Hui-quan,Zhang Shi-hai.Extraction of unbal-ance vibration signal of rotor based on least square method[J].Mechan-ical Design And Manufacturing,2012(2):194-196.)