一种大流量高速开关阀的研究与设计  

DESIGN AND STUDY OF A NEW KIND OF LARGER FLOW RATE HIGH-SPEED ON-OFF VALVE

作　　者：石延平[1] 刘成文[1] 张永忠[2] 

机构地区：[1]淮海工学院机械工程系,连云港222005 [2]中国矿业大学机电与材料工程学院,徐州221008

出　　处：《机械工程学报》2004年第4期195-198,共4页Journal of Mechanical Engineering

基　　金：江苏省教育厅自然科学基金资助项目(03KJD460035)

摘　　要：介绍了一种新型的大流量高速开关阀,它采用二级控制,先导阀采用特殊心结构,并以超磁致伸缩驱动器作为电-机转换装置,大大提高了阀的切换速度及开关频率;主阀采用球阀结构,密封性好,响应速度快。试验结果表明,该阀切换时间为8～10 ms,最大输出流量达到120 L/min。与压电晶体式高速开关阀比较,能够获得更大的输出流量,而耗电功率却大大降低,是一种很有前途的高速开关阀。A new kind of high-speed on/off valve is recommended. It has two-stages structure, in which a special valve spool and a giant magnetostrictive actuator as electric- mechanism switchover sets are used for the pilot stage, so the switch speed and frequency of the valve are greatly increased. The second stage of the valve has a ball valve, so its sealing property and respond speed is well. The result of experiment shows that the time of switch is 8- 10 ms and the maximum flow has get to 120 L/min. Comparing with the piezoelectric high-speed on-off valve, this valve can get a more output flow and the fall of consume of electric power and is a kind of up-and-coming high speed on-off valve.

关 键 词：液压控制系统 超磁致伸缩驱动器 PWM 高速开关阀 二级控制 

分 类 号：TP271.31[自动化与计算机技术—检测技术与自动化装置]