摘要
为了进一步提高电液激振器的激振频率和控制精度,并降低其加工和安装难度,提出了2D高频激振阀的新结构和控制方法。通过增加2D阀阀芯沟槽与阀套窗口的沟通次数,改进与无刷直流伺服电机连接的高速齿轮箱传动机构,设计混合式直线步进电机与堵头连接以控制阀芯轴向位移,实现了对2D高频激振阀的结构优化。经理论以及实验研究表明:新型2D高频激振阀的结构简单,控制精度高,激振频率最高可达3 000 Hz。
To extend greatly the working frequency bandwidth, improve highly the control accuracy, and reduce the processing and installing difficulty in the electro-hydraulic vibration exciter controlled by 2D valve, a new structure and control method of the electro-hydraulic exciter are presented. By increasing the number of the grooves of the 2D valve spool and the windows of the 2D valve sleeve, improving the high-speed gear box transmission structure which is connected with a servo motor, designing a link structure of the hybrid stepper linear servo motor fixed with plug to control the axial displacement of 2D valve spool, the optimization structure of 2D high-frequency excited valve is realized. The theoretical and experimental study results are clarified that the new structure of electro-hydraulic vibration exciter controlled by the 2D valve is simpler, its control accuracy is higher, and the excited frequency is up to 3 000Hz.
出处
《流体传动与控制》
2012年第1期15-18,共4页
Fluid Power Transmission & Control
关键词
电液激振器
2D高频激振阀
激振频率
electro-hydraulic vibration exciter
2D valve
excitation frequency
