首页|中型挖掘机泵控系统与阀控系统的能效对比

中型挖掘机泵控系统与阀控系统的能效对比

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
为降低传统液压挖掘机动力系统的能量消耗,提出一种单定量泵控缸的分布式直驱液压系统,开展中型挖掘机泵控系统与阀控系统的能效对比.首先,对双泵双回路阀控液压系统和分布式泵控液压系统的原理进行分析;随后,在MATLAB/Simulink中建立机械多体动力学模型、泵控液压系统模型和速度前馈PID位置反馈控制器;根据GB/T 36695-2018中的典型挖掘机循环,分别进行阀控系统实验和泵控系统仿真;最后将实验结果和仿真结果进行对比分析.结果表明:在同一工况下,两者的工作装置能耗基本相当(泵控系统比阀控系统高8.5％),但泵控系统效率(62.1％)是阀控系统效率(23.5％)的2.6倍,泵控系统总能耗降低了 62.4％.
Comparison of Energy Efficiency Between Pump-controlled System and Valve-controlled System on a Medium Excavator
In order to reduce the energy consumption of conventional hydraulic excavator,a distributed direct-drive hydraulic system with a single variable pump-controlled cylinder is proposed.Taking a medium hydraulic excavator as a test case,pump-controlled technology is adopted to replace the dual-pump dual-circuit valve-controlled technology.Firstly,the principles of the valve-controlled system and the proposed pump-controlled system are analyzed.Subsequently,mechanical models,hydraulic system models,and a speed feedback PID position feedback controller are established and combined in MATLAB/Simulink.Experimental tests for the valve-controlled system and simulations for the pump-controlled system are conducted under the same excavation cycle conditions.The results indicate that under aidentical operating condition,the energy consumption of the working apparatus in the two systems is fundamentally similar(pump-controlled system is 8.6％higher than valve-controlled system);However,the efficiency of the pump-controlled system at 62.1％is 2.6 times that of the valve-controlled system at 23.5％.As a result,the total energy consumption of the pump-controlled system is lowered by 62.4％.

hydraulic excavatorenergy savingpump-controlled systemvalve-controlled systemtypical digging cycle

国钰、张树忠、王亚兵、许弘焜、王博瑞

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福建理工大学福建省智能加工技术及装备重点实验室,福建福州 350108

液压挖掘机 节能 泵控系统 阀控系统 典型挖掘循环

福建省自然科学基金2022年省级科技创新重点项目资助先进运动控制福建省高校重点实验室年度开放基金福建理工大学海洋研究专项基金

2021J0110512022G02007MU-AMC202302GY-Z23087

2024

10.11832/j.issn.1000-4858.2024.07.015

液压与气动
北京机械工业自动化研究所

液压与气动

CSTPCD北大核心
影响因子：0.453
ISSN：1000-4858
年,卷(期)：2024.48(7)
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