工程机械动臂势能回收节能技术研究  

Research on the Boom Energy Regeneration System Based on Construction Machinery

作　　者：林添良[1,2] 叶月影[1] 付胜杰[1] 

机构地区：[1]华侨大学机电及自动化学院,厦门361021 [2]浙江大学流体动力与机电系统国家重点实验室,浙江省杭州310027

出　　处：《流体传动与控制》2014年第2期8-14,共7页Fluid Power Transmission & Control

基　　金：国家自然基金项目(51205140);高校产学合作科技重大项目(2013H6015);国家863重点项目(2010AA044401);流体动力与机电系统国家重点实验室开放基金(GZKF-201111)

摘　　要：首先分析了工程机械各执行机构的可回收能量分布以及可回收工况的特性。针对传统工程机械不具备能量储存单元的特点,分析了流量再生回路的工作原理和技术瓶颈。分析了两种剧烈工况和平缓工况时的电气式能量回收方案的工作原理、关键技术以及和汽车领域能量回收技术的异同点。最后讨论了基于液压蓄能器的不同能量回收再利用的能量回收方案的典型结构和难点。Duo to the energy crisis, the improvement on the efficiency of the hydraulic excavator is highly demanded. The potential energy and kinetic energy at the times of lowering and slewing stoppage of the excavator are also dissi-pated as heat. So it is required to make maximum use of regenerative energy for further improvement of fuel con-sumption. This paper first analyzes the proportion of regeneration energy for each actuator, the energy saving effects and the special working style of a 20 t hydraulic excavator. Then, two energy regeneration systems without the ener-gy accumulator in a hydraulic excavator are introduced. With the batteries or the capacitors in an electric hybrid pow-er system, methods that how to regenerate the potential energy of the boom and the braking energy of the swing are proposed. And also, the difference between the hybrid powered automobile vehicle and the hybrid powered excava-tor is studied. At last, the paper discusses the hydraulic accumulator energy regeneration system based on the tradi-tional hydraulic excavator or the hydraulic-hybrid hydraulic excavator. And the challenges of the energy regenera-tion system in hydraulic hybrid hydraulic excavator facing the researchers are put forwards.

关 键 词：工程机械 能量回收 混合动力 节能技术 

分 类 号：TH137[机械工程—机械制造及自动化]