Research on a new energy-recovery system for hybrid hydraulic excavators

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Zhang, Daqing^1 ; Gong, Jun^2^3 ; Zhao, Yuming^1 ; Liu, Changsheng^1 ; Hu, Peng^1 ; Tang, Zhongyong^1

National Enterprise RandD Center, Sunward Intelligent Equipment CO. Ltd., Changsha, China^1

Department of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Xiangtan, China^2

State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, China^3

关键词: Energy recovery system;    Energy saving and emission reductions;    Hydraulic excavator;    Model and simulation;    New energies;    Regeneration system;    Working device;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/4/042003/pdf
DOI  :  10.1088/1755-1315/300/4/042003

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Hydraulic excavators, especially medium and large excavators, waste a lot of energy during the frequent lifting-lowering process of its boom. Recovery and regeneration the wasted energy is an important means to achieve energy saving and emission reduction of excavators. In this paper, a potential energy recovery and regeneration system based on a multi-cylinder structure working device is invented. Firstly, the theoretical analysis of the system, and the modeling and simulation research are carried out. Results show that under the same boom-single-action conditions, the energy-saving efficiency of the excavator equipped with energy recovery system can reach 33%, it has important reference significance for evaluating the energy efficiency of the new system.