具有新型密封结构的三位四通纯水液压换向阀的实验研究

Experimental study on a three-position four-way water hydraulic directional valve with a novel sealing structure.

作者信息

Zhang Xi, Fan Xijie, Liang Jiawei, Chen Kailu, Gao Daoying, Wang Zeqian, Xu Hongyu, Gao Miaomiao

机构信息

School of Mechanical and Electrical Engineering, China University of Mining & Technology-Beijing, Beijing, 100083, China.

出版信息

Sci Rep. 2025 Jul 1;15(1):20561. doi: 10.1038/s41598-025-05506-y.

DOI:10.1038/s41598-025-05506-y

PMID:40594402

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12214617/

Abstract

Water is a clean and pollution-free medium, making it an excellent alternative to hydraulic oil as a transmission medium. However, the widespread application of water hydraulic systems is currently hindered by poor sealing performance and the complex structure of control components. To address these challenges, this study introduces an innovative 4/3 water hydraulic directional valve. The proposed valve adopts a contact-type dynamic sealing structure, which offers superior sealing performance and the ability to withstand a wider range of high pressures. Additionally, it features a simple structure and low manufacturing cost. A prototype was developed and subjected to rigorous performance testing. The experimental results demonstrate that the valve realizes reliable directional control functions, exhibits excellent dynamic characteristics, and ensures safe and reliable control of hydraulic cylinders. Under different pressure conditions, the valve maintains ideal sealing performance both in the neutral and working positions after directional switching. The development of the novel 4/3 water hydraulic directional valve not only enriches the range and application scope of water hydraulic components but also shows significant potential for advancing hydraulic transmission technology from oil-based to water-based systems.

摘要

水是一种清洁且无污染的介质，使其成为替代液压油作为传动介质的极佳选择。然而，水压系统目前的广泛应用受到密封性能不佳以及控制元件结构复杂的阻碍。为应对这些挑战，本研究引入了一种创新型的4/3水介质方向阀。所提出的阀采用接触式动态密封结构，具有卓越的密封性能以及承受更广泛高压范围的能力。此外，它结构简单且制造成本低。开发了一个原型并进行了严格的性能测试。实验结果表明，该阀实现了可靠的方向控制功能，展现出优异的动态特性，并确保了液压缸的安全可靠控制。在不同压力条件下，该阀在方向切换后的中位和工作位均保持理想的密封性能。新型4/3水介质方向阀的开发不仅丰富了水介质液压元件的种类和应用范围，还显示出在推动液压传动技术从油基系统向水基系统发展方面的巨大潜力。