中南大学学报（自然科学版）2016，Vol.47Issue(5)：1527-1532,6.DOI:10.11817/j.issn.1672-7207.2016.05.011
装载机转向液压系统的热平衡分析与比较
Analysis and comparison for thermal balance of steering hydraulic system of loader
摘要
Abstract
Based on the lumped parameter method to establish simulation model of heat transfer in the loader full hydraulic steering system,high-speed cartest conditions were simulated.For several typical mode of operation,the thermal balance simulation of two kinds of steeringhydraulic systemwasdone by using heat transfer model.Theloss of two hydraulic steering systems wascompared.Theresultsshowthattheresults validatedthe simulation modelis accurately credible.Atpresent,theI-shaped shovel loading cycle is widely used in the thermal balance industrial test of loader, which is not the maximum heat load condition of the hydraulic system ofloader.Thethermalbalance temperature and the ambient temperature difference of the coaxial flow amplifying steering hydraulic system loader in the T-shaped operation is 74.3℃;thethermalbalance temperature and the ambient temperature difference between the flow amplification and steering hydraulic system loader in the V-shaped operation is 62.64℃.关键词
转向液压系统/传热/仿真/装载机Key words
steering hydraulic system/heat transfer/simulation/loader分类
机械制造引用本文复制引用
王剑鹏,秦四成,杨立光,石有胜..装载机转向液压系统的热平衡分析与比较[J].中南大学学报（自然科学版）,2016,47(5):1527-1532,6.基金项目
国家科技支撑计划项目(2013BAF07B04)(Project(2013BAF07B04)@@@@supported bytheNational Key Technology Support Program of China) （2013BAF07B04）
