基于合流阀与优先阀的宽体矿用自卸车液压系统优化设计

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中图分类号：U462 收稿日期：2025-09-20

DOI： 10.19999/j.cnki.1004-0226.2025.11.006

Optimized Design of the Hydraulic System for Wide-body Mining Dump Trucks Based on Confluence Valves and Priority Valves

Yuan XixianYuan ChunhuiYang JiLei JunLi HongruHuang Xunwei Hydraulic Research Institute，Hubei Jiaheng TechnologyCo.，Ltd.，Shiyan442512，China

Abstract：Aimingattheproblemsofenergywaste，oiltemperaturerise，pipeburstrisk，andlowliftingeficiencyinthehydraulic systemofof-roadwide-bodyminingdumptrucksithaloadcapacityexceding80tons，thistudyproposesanoptimizedhdraulic systemdesignbasedonconfluencevalvesandpriorityvalves.Bymergingtheoilsupplyof thesteeringsystemandtheliftingsystem andntroducinganoveflowprotetionmechansm，tesystemachevesreducedibration，protetioofthesteingciit，aed anti-burstperformance，andimprovedenergyeficiencyTestresultsshowthattheimprovedsystemsignificantlyincreasesthlifting speed under dual-pump confluence when the lifting pressure does not exceed 20MPa ，reduces energy consumption by more than 15% ， andefectivelyavoidspipeburstrisksthroughtheone-wayvalvedesignoftheair-controledistributionvalve.Thisreseachprovides practical references for the design of hydraulic systems in heavy-duty mining vehicles.

Keywords：Hydraulic system;Confluence valve;Priority valve;Anti-burst design;Energy savin

1前言

非公路宽体矿用自卸车是大型露天矿山开采中的关键运输设备，其载重能力通常超过 80t ，部分车型甚至达到 100t 以上。（剩余6516字）