吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (2): 479-486.doi: 10.13229/j.cnki.jdxbgxb201602022

• Orginal Article • Previous Articles     Next Articles

Evaluation and testing of electric-hydraulic energy regeneration system of excavator

GONG Jun1, 2, HE Qing-hua1, 2, ZHANG Da-qing2, LIU Chang-sheng1, 2, ZHAO Yu-ming1, 2, HU Peng1, 2   

  1. 1.The State Key Laboratory of High Performance Complicated Manufacturing, Central South University, Changsha 410083 , China;
    2.The National Enterprise R&D Center, Sunward Intelligent Equipment Co.,Ltd.,Changsha 410100, China
  • Received:2014-07-14 Online:2016-02-20 Published:2016-02-20

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Abstract: In order to save energy in hydraulic excavator, the excavator working condition is analyzed and an electro-hydraulic energy regeneration system is designed. To theoretically analyze the characteristics of the energy regeneration system, a simulation model is built and numerical analysis is carried out. To verify the simulation results, the energy regeneration system is equipped in a 20-ton excavator and large number of tests is conducted. Both simulation and test results show that in single operation, the maximum energy regeneration efficiency of the electro- hydraulic energy regeneration system can reach 40%. When equipped with this system, the excavator can save energy by 17.6% without loss of its original operating characteristics.

Key words: mechanical design, excavator, energy regeneration, system modeling

CLC Number: 

  • TH122
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