板状阀芯旋转式四通换向阀  

A Rotary Reversing Valve with Plate Spool

作　　者：韩冬[1] 龚国芳[1] 刘毅[1] 廖湘平[1] 

机构地区：[1]浙江大学流体动力与机电系统国家重点实验室,浙江杭州310027

出　　处：《机床与液压》2014年第5期1-3,34,共4页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(51275499);国家自然科学基金创新研究群体科学基金项目(51221004);国家"973"重点基础研究发展规划资助项目(2013CB035404)

摘　　要：设计一种新型板状阀芯旋转式四通换向阀,介绍其工作原理和阀口特征,对该液压转阀的静态特性、受力情况和频响特性进行详细分析。研究结果表明:该液压转阀结构新颖,轴向液动力小,过流面积和旋转阀芯角位移严格呈正比,线性度好,增益恒定;调整合适的阻尼系数可以兼顾转阀工作的稳定性和快速性。A new rotary reversing valve with plate spool was designed. Based on it＇s working principle and unique orifice struc-ture,static characteristics,stress conditions and frequency response characteristics were analyzed. The results indicate that axial hy-drodynamic force of the rotary valve with unique structure is very small. Besides,flowing area and rotating displacement are strictly positive with good linearity and constant gain. So as to guarantee stability and rapidity of the rotary valve,suitable damping coefficient is adjusted.

关 键 词：液压转阀 板状阀芯 阀口结构 频响特性 

分 类 号：TH137[机械工程—机械制造及自动化]