液压与气动2025，Vol.49Issue(3)：81-89,9.DOI:10.11832/j.issn.1000-4858.2025.03.010
基于耦合流动的卷扬液压回路动态特性研究
Research on Dynamic Characteristics of Hydraulic Circuit of Winch Based on Coupled Flow
摘要
Abstract
When the winche of automobile crane are lifting and lowering,the micro-motion characteristics of its hydraulic control circuits are closely related to the smoothness and safety of the whole machine.The winch hydraulic system is taked as the research object,and its micro-motion characteristics is analyzed,which is based on the parallel research method of system simulation,real-time joint simulation of the system and components,and experimental test.The results show that the original main valve stem experienced a throttling inflection point due to a sudden change in valve port area gradient.This study effectively improved the throttling characteristics of the main control valve by optimizing the structure of the throttle valve port and return valve port.The original large diameter three port valve exhibited a"quick closing,quick opening"response state due to excessive spring preload and relatively low stiffness.This study effectively improved the problem of pressure overshoot in the winch system circuit by scaling the three port valve diameter proportionally,reducing the preload force of the pressure reducing spring,and reasonably matching its stiffness parameters and optimizing its valve port area curve.关键词
卷扬液压回路/动态特性/实时联合仿真/性能改善/试验测试Key words
winch hydraulic circuit/dynamic characteristics/real-time co-simulation/performance improvement/experimental test分类
机械制造引用本文复制引用
高名乾,贺建强,李固,冀宏,郭敏杰..基于耦合流动的卷扬液压回路动态特性研究[J].液压与气动,2025,49(3):81-89,9.基金项目
广西科技计划项目(AB22035040) （AB22035040）
