油液混合动力液压挖掘机动臂势能回收系统

吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊1): 150-154.

油液混合动力液压挖掘机动臂势能回收系统

赵丁选¹, 陈明东^1,2, 戴群亮³, 章二平³, 徐春博¹

1. 吉林大学机械科学与工程学院, 长春 130022;
2. 青岛农业大学建筑工程学院, 山东青岛 266109;
3. 广西柳工机械股份有限公司, 广西柳州 545007

收稿日期:2010-11-12 出版日期:2011-09-01 发布日期:2011-09-01
作者简介:赵丁选(1965 ),男,教授.博士生导师.研究方向:工程机器人.流体传动与控制.E-mail:zdx@mail.jlu.edu.cn.
基金资助:
“863”国家高技术研究发展计划项目(2009AA044403)

System of arm potential energy recovery in hybrid hydraulic excavators

ZHAO Ding-xuan¹, CHEN Ming-dong^1,2, DAI Qun-liang³, ZHANG Er-ping³, XU Chun-bo¹

1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
2. College of Architecture Engineering, Qingdao Agricultural University, Qingdao 266109, China;
3. Guangxi Liugong Machinery Co Ltd, Liuzhou 545007, China

Received:2010-11-12 Online:2011-09-01 Published:2011-09-01

摘要/Abstract

摘要：

针对油电混合动力系统价格昂贵、功率密度小的缺点,在对普通液压挖掘机典型工况特性进行分析的基础上,提出了一种以蓄能器为储能元件,由液压缸、换向阀、单向阀和蓄能器组成的油液混合动力液压挖掘机动臂势能回收系统,建立了相关数学模型。以实测液压挖掘机动臂下降参数为依据,对该能量回收系统节能效率进行了仿真分析,论证了数学模型和方案的正确性。通过与普通挖掘机动臂下降过程能耗比较,该能量回收系统回收效率较高,在满足实际工作要求下节能比率达14.8%。

关键词: 动力机械工程, 液压挖掘机, 油液混合动力, 蓄能器, 动臂势能, 节能

Abstract:

Facing the disadvantage of high cost and low power density for electric hybrid hydraulic excavators,an arm potential energy recovery in hydraulic hybrid excavators,which is made up of cylinder,reversing valve,check valve and accumulator,was put forward based on the analysis of unique working condition in hydraulic excavators,and its mathematical models were built.Energy saving rate of the system was simulated on the basis of measured parameter,Compared with ordinary hydraulic excavators energy consumption,the system has high energy saving rate,and the energy saving rate is up to 14.8% when meet the working requirment.

Key words: power machinery and engineering, hydraulic excavators, hydraulic hybrid, accumulator, arm potential energy, energy saving

中图分类号:

TH137

赵丁选, 陈明东, 戴群亮, 章二平, 徐春博. 油液混合动力液压挖掘机动臂势能回收系统[J]. 吉林大学学报(工学版), 2011, 41(增刊1): 150-154.

ZHAO Ding-xuan, CHEN Ming-dong, DAI Qun-liang, ZHANG Er-ping, XU Chun-bo. System of arm potential energy recovery in hybrid hydraulic excavators[J]. 吉林大学学报(工学版), 2011, 41(增刊1): 150-154.

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