重庆大学学报2016，Vol.39Issue(4)：8-15,8.DOI:10.11835/j.issn.1000-582X.2016.04.002
插装式电液比例流量放大阀特性分析
Chatactetistics of electto-hydtaulic ptopottional catttidge insetted valve based on flow amplifiet
摘要
Abstract
Absttact:Cartridge inserted valves are widely used in hydraulic applications because of their large flow capacities,simple structure and low cost.In this paper,a two-stage cartridge inserted proportional throttle valve was investigated.The main stage of the two-stage poppet type proportional throttle valve is based on flow amplification principle,and a single-stage servo proportional direction valve is used in its pilot stage.We first established a simplified mathematical model,and obtained the qualitative expressions under simplified conditions.Then,we set up a simulation model of the proportional throttle valve by means of SimulationX,and verified the correctness of the model with experimental data.Finally,we used the verified simulation model to analyze the performance of the proportional throttle valve.The results show that there is a dead zone and time lag of the output flow and the flow gain of the main stage is variable.The performance of the proportional throttle valve is affected by the underlap and the area gradient of the feedback slot,the volume between the pilot and the main stages,and flow capacity of the pilot stage,etc.关键词
流量阀/节流阀/插装阀/流量放大器Key words
flow valve/throttle valve/cartridge inserted valve/flow amplifier分类
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黄家海,郭晓霞,李陶陶,权龙,张勇,王胜国..插装式电液比例流量放大阀特性分析[J].重庆大学学报,2016,39(4):8-15,8.基金项目
国家自然科学基金资助项目（51175362，51205271）；高等学校博士学科点专项科研基金资助项目（20121402120002）。Supported by the National Natural Science Foundation of China （51175362，51205271）and Specialized Research Fund for the Doctoral Program of Higher Education （20121402120002）． （）
