液压挖掘机动臂闭式油路节能系统

›› 2012, Vol. 42 ›› Issue (05): 1140-1144.

液压挖掘机动臂闭式油路节能系统

陈明东^1,2, 赵丁选¹, 倪涛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

收稿日期:2011-09-21 出版日期:2012-09-01 发布日期:2012-09-01
通讯作者: 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 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).

Boom energy-saving system with closed oil circuit in hydraulic excavator

CHEN Ming-dong^1,2, ZHAO Ding-xuan¹, NI Tao¹

1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
2. College of Architecture Engineering, Qingdao Agricultural University, Qingdao 266109, China

Received:2011-09-21 Online:2012-09-01 Published:2012-09-01

摘要/Abstract

摘要： 通过对液压挖掘机典型工况特性分析,提出了一种液压挖掘机动臂闭式油路节能系统,阐述了配置蓄能器动臂闭式油路系统的节能原理。在其工作原理基础上建立了液压元件及电气元件的数学模型。在典型挖掘循环中,分析了系统中蓄能器、电动机和负载3个主要功率部件的运行状况。理论分析和仿真结果表明:液压挖掘机动臂闭式油路节能系统运行状况良好,与普通阀控液压挖掘机动臂驱动方式相比,该系统节能率约为33.1%,为液压挖掘机整机节能提供了参考。

关键词: 流体传动与控制, 液压传动与控制, 液压挖掘机, 混合动力, 动臂势能, 闭式油路

Abstract: By the characteristic analysis of the typical working conditions of the hydraulic excavator, a boom energy-saving system with closed oil circuit was proposed and the energy-saving principle of the system with the energy accumulator was discussed. The mathematical models were built for the hydraulic and the electric components according to their working principles. The working conditions of its 3 main power components, the accumulator, the electromotor, and the load in the typical excavator working cycle were analyzed. The results of the theoretical analysis and the simulation showed that the boom energy-saving system with closed oil circuit works steadily. Compared with the traditional valve-controlled system of the hydraulic excavator, the energy-saving rate of the proposed system reached, providing an encouraging reference for the energy-saving of the hydraulic excavator.

Key words: turn and control of fluid, hydraulic transmission and control, hydraulic excavators, hybrid power, boom potential energy, closed oil circuit

中图分类号:

TH137

陈明东, 赵丁选, 倪涛. 液压挖掘机动臂闭式油路节能系统[J]. , 2012, 42(05): 1140-1144.

CHEN Ming-dong, ZHAO Ding-xuan, NI Tao. Boom energy-saving system with closed oil circuit in hydraulic excavator[J]. , 2012, 42(05): 1140-1144.

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