锥型阀芯液动力计算与补偿方法研究  

Calculation and compensation method of static hydraulic force on poppet valve

作　　者：张东旭 沈坚 王淼 吕学明 ZHANG Dong-xu;SHEN Jian;WANG Miao;L Xue-ming(Atos Hydraulics(Shanghai)Co.,Ltd.,Shanghai 201400,China;China Heavy Machinery Industry Association,Beijing 100070,China;Chengdu Gongyuan Technology Co.,Ltd.,Chengdu 610000,China)

机构地区：[1]阿托斯液压(上海)有限公司,上海201400 [2]中国重型机械工业协会,北京100070 [3]成都工元科技有限公司,四川成都610000

出　　处：《重型机械》2024年第1期89-93,共5页Heavy Machinery

摘　　要：为研究锥型电磁换向阀的弹簧无法推动阀芯的故障现象,利用动量定理计算出阀芯的静态液动力理论值,并提出了一种阀芯优化方案。基于计算流体力学(Computational Fluid Dynamics,CFD)平台计算出阀芯优化前后的压力云图和速度矢量图,通过分析仿真结果确定了最优的阀芯几何参数。结果表明在相同工况下,优化后阀芯的射流角增加,压力损失降低。To study the fault of the spring of taper solenoid directional valve unable to push the valve core,the theoretical value of the static hydraulic force for the valve core was calculated using the momentum theorem,and an optimization scheme for the valve core was proposed.The paper calculates the pressure cloud map and velocity vector map before and after optimizing the valve core by CFD(Computational Fluid Dynamics),the optimal geometry parameters of valve core are determined based on analysis results.The simulation result shows the jet angle of optimized poppet increased and the pressure drop reduction at the same situation.

关 键 词：锥型电磁换向阀 液动力 CFD 阀芯优化 

分 类 号：TH137.52[机械工程—机械制造及自动化]