DN80二通插装式伺服阀动态特性优化研究  

Optimization of Dynamic Characteristics for DN80 2-way Cartridge Servo Valve

作　　者：陈逸嘉 冯永强 龚益飞 李文雷 赵静一[2] 陈博 CHEN Yi-jia;FENG Yong-qiang;GONG Yi-fei;LI Wen-lei;ZHAO Jing-yi;CHEN Bo(Youweili Hydraulic Technology Co.,Ltd.,Haimen 226100,China;School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,China;Xuzhou Xugong Excavation Machinery Co.,Ltd.,Xuzhou 221122,China)

机构地区：[1]油威力液压科技股份有限公司,江苏海门226100 [2]燕山大学机械工程学院,河北秦皇岛066004 [3]徐州徐工挖掘机械有限公司,江苏徐州221122

出　　处：《液压气动与密封》2023年第3期30-33,29,共5页Hydraulics Pneumatics & Seals

摘　　要：针对国产DN80二通插装式伺服阀阶跃响应时间长的问题,提出先导控制腔优化方法以提高动态特性。首先建立先导控制腔三维数模,利用Fluent软件详细分析了主阀芯不同开口度的液动力分布情况,将先导控制腔的直径优化为90 mm;然后结合仿真软件AMESim对DN80二通插装式伺服阀进行动态特性研究。仿真结果表明:先导腔结构参数优化后减小了液动力,提高了动态响应特性。最后对优化后的DN80二通插装式伺服阀进行实验测试,其阶跃响应时间由40 ms缩短至23 ms,显著提高的了动态特性,验证仿真与优化的准确性。Aiming at the problem of long step response time of domestic DN80 two-way cartridge servo valve,an optimization method of pilot control cavity was proposed to improve the dynamic characteristics.Firstly,the 3D digital model of the pilot control cavity is established,Fluent software was used to analyze the hydrodynamic distribution of the main spool with different opening degrees in detail,and the diameter of the pilot control chamber was optimized to 90mm;Then the dynamic characteristics of DN80 two-way cartridge servo valve are studied by AMESim.The simulation results show that the hydraulic force is reduced and the dynamic response is improved after the structural parameters of the pilot cavity are optimized.Finally,the optimized DN80 two-way cartridge servo valve was tested experimentally.The step response time was shortened from 40ms to 23ms,which significantly improved the dynamic characteristics and verified the accuracy of simulation and optimization.

关 键 词：二通插装伺服阀 液动力 动态特性 阶跃响应 

分 类 号：TH137[机械工程—机械制造及自动化]