液压与气动2023，Vol.47Issue(12)：99-106,8.DOI:10.11832/j.issn.1000-4858.2023.12.014
液控单向阀配流高压马达配流阀口节流特性分析与流场仿真研究
Throttling Characteristics Analysis and Flow Field Simulation of Valve Port of High Pressure Motor Distribute by Pilot Operated Check Valve
摘要
Abstract
The throttling pressure loss and leakage of the valve distribution mechanism are important factors affecting the dynamic performance of the hydraulic motor.In this paper,the motion characteristics and flow field characteristics of the valve core in the flow distribution process of the hydraulic motor distributed by the hydraulic control check valve are studied.Based on the flow distribution hydraulic device of the hydraulic control check valve,the movement characteristics of the valve spool of the valve are analyzed.The hydraulic control check valve model is built by AMESim,and the response characteristics of the hydraulic control check valve are compared with that of the valve plate flow distribution.The throttling pressure drop and flow velocity in the process of valve opening are studied by using Fluent software.The results show when the hydraulic resistance hole and the small end diameter of the valve spool are fixed,the closer the ratio of the small end diameter of the valve spool to the diameter of the large end of the valve spool is 1,the response time of the valve spool is shortened.At high load pressures,the spool also responds faster.At the valve port input flow rate of 40 L/min,the pressure difference between the front and rear of the valve mouth is 1.3 MPa.The hydraulic control check valve distribution scheme is feasible for high pressure,low speed,and high torque hydraulic motor.关键词
液压马达/液控单向阀配流/CFD/配流特性/流场分析Key words
hydraulic motor/hydraulic control check valve distribution/CFD/distribution characteristic/flowfield analysis分类
机械制造引用本文复制引用
罗涛,郭桐,林添良,陈其怀,任好玲,刘建平..液控单向阀配流高压马达配流阀口节流特性分析与流场仿真研究[J].液压与气动,2023,47(12):99-106,8.基金项目
华侨大学引进人才基金(605-50Y19011) （605-50Y19011）
福建省自然科学基金面上项目(2021J01295) （2021J01295）
流体动力与机电系统国家重点实验室开放基金(GZKF-202026) （GZKF-202026）
福厦泉自创区协同专项(3502ZCQXT202002) （3502ZCQXT202002）
