基于电液能量回收的挖掘机节能系统仿真评价与试验  

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

作　　者：龚俊[1,2] 何清华[1,2] 张大庆 刘昌盛[1,2] 赵喻明[1,2] 胡鹏[1,2] 

机构地区：[1]中南大学高性能复杂制造国家重点实验室,长沙410083 [2]山河智能装备股份有限公司,国家级企业技术中心,长沙410100

出　　处：《吉林大学学报（工学版）》2016年第2期479-486,共8页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家科技支撑计划项目(2014BAA04B00)

摘　　要：以液压挖掘机节能为目的,结合挖掘机的工况特点,设计了一种挖掘机电液能量回收系统方案。为了从理论上分析能量回收系统性能,并找出改善系统燃油经济性的有效途径,建立了液压挖掘机电液能量回收系统的仿真模型并进行仿真分析。以某型20吨级液压挖掘机为试验平台,对电液能量回收系统进行了试验研究。仿真与试验结果表明:在单动作条件下,电液能量回收系统的最高能量回收效率为40%,搭载该系统的挖掘机在标准工况下,能实现17.6%的节能效果,并不降低原系统其他性能。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.

关 键 词：机械设计 挖掘机 能量回收 系统建模 

分 类 号：TH122[机械工程—机械设计及理论]