液压与气动Issue(12)：70-75,6.DOI:10.11832/j.issn.1000-4858.2017.12.012
液压挖掘机动臂势能复合式再生系统的研究
Compound Regeneration System of Boom Potential Energy for Hydraulic Excavator
摘要
Abstract
In order to improve the energy utilization rate of hydraulic excavator,we propose a new method for recovering the boom potential energy by directly connecting the return chambers of boom cylinder to an accumulator through the rotary motor.When the boom is dropping,part of the potential energy is converted into the hydraulic energy of accumulator.When the boom is lifting,the hydraulic energy of accumulator is converted into the potential energy of boom,and the other part is converted into electricity,stored in the super capacitor.The hydraulic energy of accumulator is used to support the torque of hydraulic motor so that the input power of rotary motor is reduced.By adjusting the motor displacement,we control the lifting and the dropping speeds of the boom,and make the system achieve the holding pressure through two hydraulic check valves.This method has high recovery efficiency due to without throttling and overflow losses.The feasibility of this method is verified by the simulation,which provides a reference for the practical application of boom energy recovery.关键词
势能回收/节能回路/液压蓄能器/挖掘机动臂Key words
potential energy recover/energy saving circle/hydraulic accumulator/excavator boom分类
机械制造引用本文复制引用
贺福强,杜希亮,周金松,姚学练,韩雄..液压挖掘机动臂势能复合式再生系统的研究[J].液压与气动,2017,(12):70-75,6.基金项目
贵州省科技厅重大科技专项(黔科合重大专项字[2016]3014) （黔科合重大专项字[2016]3014）
创新基地项目(贵大研CXJD[2015]003) （贵大研CXJD[2015]003）
