基于CFD的液压滑阀阀芯均压槽的研究  

The Research of the Pressure-equalizing Groove for Hydraulic Slide Valve Based on CFD

作　　者：罗艳蕾[1] 吴健兴[1] 陈伦军[1] 路芳[1] 

机构地区：[1]贵州大学机械工程学院,贵州贵阳550025

出　　处：《液压气动与密封》2013年第1期13-15,共3页Hydraulics Pneumatics & Seals

基　　金：贵州省重大专项字(2009)6003;贵州省科学基金项目J字[2010]2017

摘　　要：该文首先对液压滑阀阀芯偏心且倒锥时受到的卡紧力进行数学建模,然后介绍了3种不同形状的液压滑阀阀芯均压槽,并用Fluent软件对阀套与阀芯之间的流场进行模拟仿真。最终分析结果表明,在液压滑阀阀芯上加开均压槽虽然会导致滑阀缝隙泄漏量略有增加,但能有效减少阀芯受到的径向不平衡力,避免阀芯发生卡滞现象。In this paper,the mathematical model of the radial force that the valve core of the hydraulic slide valve suffered when it is eccentric and pour tapered is built firstly,then three kinds of different shapes of pressure-equalizing grooves of hydraulic slide valve core are introduced,and the flow field between the valve core and the valve cover is simulated with Fluent software.The final analysis results show that,opening pressure-equalizing grooves in the hydraulic slide valve core will lead to slide valve aperture＇s leakage a little increase,but it can effectively reduce the unbalanced radial force the valve core suffered,and avoid the valve core clamping stagnation.

关 键 词：CFD 均压槽 卡紧力 模拟仿真 

分 类 号：TH137.52[机械工程—机械制造及自动化]