微耕机的振动测试试验与分析  

Vibration test and analysis of micro-cultivator machine

作　　者：吉庆山[1] 程俊男 李俊韬[2] 王玉龙 田金灵 张学敏[2] 

机构地区：[1]邢台职业技术学院,河北邢台054035 [2]中国农业大学工学院,北京市100083

出　　处：《中国农机化学报》2017年第8期44-49,共6页Journal of Chinese Agricultural Mechanization

基　　金：北京市农业监理总站"北京市微耕机安全检验技术规范"制定项目

摘　　要：以北京地区常见的某款微耕机为研究对象,通过测试与有限元仿真相结合的方法,对其振动特性进行探索性研究。采用CBOOK2001便携式数据采集器、CM3508TM8通道动态信号调理模块及加速度传感器对微耕机的扶手架在不同环境、不同工况下进行测试,并且对扶手架进行时域和频域分析,得到扶手架在各工况下的振动信号的特性值和频谱图。根据分析结果建议:微耕机在使用过程中定期更换发动机安装座处的减震垫,且在实际生产加工中优化机架结构使其固有频率避开发动机激励频率。Vibration characteristics of a kind of micro-cultivator commonly used in Beijing was exploratory researched,based on experimental tests and finite element simulation.Characteristics of handles under different ground conditions and operating modes were tested,by using portable data collector（CBOOK2001）,channel dynamic signal conditioning module（CM3508TM8）,and acceleration sensor.Eigen-value and frequency spectrogram of handle＇s vibration signals were obtained,under different operating modes,based on time and frequency domain analysis.According to the analysis,several suggestions are proposed,like replacing the cushions at engine support regularly,optimizing the rack structure during the actual production and processing,so as to keep the engine inherent frequency avoiding its excitation frequency.

关 键 词：微耕机 振动 测试 扶手架 

分 类 号：S222.3[农业科学—农业机械化工程]