1.7 t小型液压挖掘机臂架势能再生系统研究  

Research on boom potential energy regeneration system of 1.7 t small hydraulic excavator

作　　者：贺湘宇[1] 胡薜礼 肖广鑫 谭丽莎 HE Xiang-yu;HU Bi-li;XIAO Guang-xin;TAN Li-sha(School of Automotive and Mechanical Engineering,Changsha University of Science&Technology,Changsha 410114,China)

机构地区：[1]长沙理工大学汽车与机械工程学院,湖南长沙410114

出　　处：《长沙理工大学学报（自然科学版）》2020年第4期106-113,共8页Journal of Changsha University of Science and Technology:Natural Science

基　　金：湖南省自然科学基金资助项目(2018JJ2441)。

摘　　要：液压挖掘机完成一个工作循环,需要依靠液压传动系统驱动臂架做频繁的往复运动。为了更好地解决臂架在下降过程中的能量损失问题,以1.7 t小型液压挖掘机为研究对象,提出了两种臂架势能再生系统模式。首先,分析和探讨了这两种臂架势能再生系统模式是否可行;其次,设计了这两种臂架势能再生系统模式及其液压回路原理图;最后,基于1.7 t小型液压挖掘机的实际工况数据,利用AMESim仿真平台对这两种臂架势能再生系统模式的工作性能和节能效率进行了深入的分析。研究结果表明:在相同的工况下,这两种液压挖掘机臂架势能再生系统模式的节能效率分别为22.1%和23.7%。Hydraulic excavator needs to rely on the hydraulic transmission system driving the boom to make frequent to-and-fro motion to complete a work cycle.In order to better solve the problem of energy loss in the falling process of the boom,a 1.7 t small hydraulic excavator was taken as the research object,and two modes of the boom potential energy regeneration systems were proposed.Firstly,the feasibility of the two modes of the boom potential energy regeneration systems was analyzed and discussed.Secondly,the schematic diagrams of the two modes of the boom potential energy regeneration systems and their hydraulic circuits were designed.Finally,based on actual working condition data of 1.7 t hydraulic excavator,AMESim simulation platform was used to deeply analyze the working performances and energy saving efficiencies of the two modes of the boom potential regeneration systems.The result of the research indicates that under the same working condition,the energy saving efficiencies of the two modes of the potential energy regeneration systems of the hydraulic excavator booms are 22.1%and 23.7%,respectively.

关 键 词：液压挖掘机 工程机械 液压传动系统 蓄能器 增压缸 势能回收 仿真模型 

分 类 号：U469.6[机械工程—车辆工程]