摘要
为充分认识先导式阀门的优势,有效提升先导式阀门的使用性能,从先导结构的驱动部件、弹簧组件、阀芯和阻尼孔四个方面,整理了先导式阀门的最新发展;从压力控制、流量控制和方向控制三个方面介绍了先导结构控制先导式阀门所实现的不同功能;从静态特性和动态特性两个角度分析了不同先导结构对先导式阀门性能的影响。结果表明:先导式阀门的阀芯形式、阻尼孔位置对阀门性能影响较大;对于流量控制和方向控制的控制策略还需进一步创新;先导式阀门的动态、静态特性指标之间存在一些不统一的地方。未来,新型特种先导式阀门开发、先导结构参数对阀门动静态特性影响的量化分析将是重要的研究方向。
In order to deeply understand the advantages of pilot control valves,as well as to effectively improve the performance,the recent developments of pilot control valves are summarized,divided into the drive components,spring components,valve core and damping hole;the different functions of pilot control valves controlled by the pilot structure are introduced from pressure control,flow control and direction control;the influence of different pilot structures on the performance of pilot control valves is analyzed from static and dynamic characteristics.The results show that,the valve core and the orifice position have great effects on the performance of valves,further innovations are needed in control strategies and principles for flow and direction control.There is a certain contradiction between the dynamic and static characteristics of pilot control valves.In future,novel special functional pilot control valve development,the quantitative analysis of pilot structure parameters effects on dynamic and static characteristics will be important research directions.
作者
钱锦远
姚怀宇
吴嘉懿
金志江
QIAN Jin-yuan;YAO Huai-yu;WU Jia-yi;JIN Zhi-jiang(Institute of Process Equipment, Zhejiang University, Hangzhou, Zhejiang 310027)
出处
《液压与气动》
北大核心
2021年第3期14-24,共11页
Chinese Hydraulics & Pneumatics
基金
国家自然科学基金(51805470)。
关键词
先导式阀门
先导结构
动静态特性
阀芯
阻尼孔
pilot control valves
pilot structure
dynamic and static characteristics
valve core
damping hole
