并联换向阀周向稳态液动力分析  

Circumferential Steady Flow Torques Analysis of Reversing Twin-valve

作　　者：熊城炜 陈德馨 刘毅[2,3] 邹铭轩[2] 王涛 XIONG Chengwei;CHEN Dexin;LIU Yi;ZOU Mingxuan;WANG Tao(School of Mechanical Engineering,Anhui University of Science&Technology,Huainan 232001,China;Zhejiang University Ningbo Institute of Technology,Ningbo 315100,China;Ningbo Research Institute,Zhejiang University,Ningbo 315100,China)

机构地区：[1]安徽理工大学机械工程学院,安徽淮南232001 [2]浙大宁波理工学院,浙江宁波315100 [3]浙江大学宁波研究院,浙江宁波315100

出　　处：《重庆理工大学学报（自然科学）》2021年第1期104-110,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(51605431);宁波市自然科学基金项目(2019A610162)。

摘　　要：为解除液压执行元件进回油口间的联动,降低工作过程中系统的总液动力矩,提出了一种基于双阀芯结构的负载口独立控制式并联换向阀。通过建立其数学模型及液动力模型,求解分析了该阀在3种不同工作条件下的稳态液动力特性。研究结果表明:通过2个阀芯之间的并联式配合关系,在阀芯旋转位移和轴向位移联合控制下,可降低系统总稳态液动力矩。双阀芯并联式控制方法为电液系统中负载口独立控制技术提供了新思路,其液动力矩的模型分析对此类换向阀的设计具有指导意义。In order to release the linkage between the inlet and outlet of hydraulic valves and reduce the total steady flow torques of the system in the working process,an independent metering control directional control valve based on the twin-valve structure is proposed.After establishing its mathematical model and hydrodynamic model,the steady flow hydrodynamic characteristics of the valve under three different working conditions are analyzed.The results show that under the joint control of the angular displacement and linear displacement of the spool,the total steady flow torque of the system can be reduced with the parallel relationship between the two spools.The double-spool parallel control method provides a new idea for the independent metering control technology in the electro-hydraulic system.The analysis of the hydraulic torque has guiding significance for the design of such reversing valve.

关 键 词：负载口独立控制 换向阀 双阀芯并联式控制 稳态液动力 数学模型 

分 类 号：TH137.523[机械工程—机械制造及自动化]