装载机液压系统能量损失分析与节能方案设计  

Energy loss analysis and energy saving design of loader hydraulic system

作　　者：郭雷 朱一帆 GUO Lei;ZHU Yifan(Hunan Biological And Electromechanical Polytechnic,Changsha,Hunan 410000,China;Zoomlion Heavy Industry Science and Technology Co.,Ltd.,Changsha,Hunan 410000,China)

机构地区：[1]湖南生物机电职业技术学院,湖南长沙410000 [2]中联重科股份有限公司工程起重机分公司,湖南长沙410000

出　　处：《农业工程与装备》2024年第3期10-13,共4页AGRICULTURAL ENGINEERING AND EQUIPMENT

基　　金：湖南省教育厅资助科研项目(24C1016);湖南生物机电职业技术学院校级大学生科技创新项目(24YXS01)。

摘　　要：为解决装载机动臂下降时液压系统的能量损失问题,通过市场调查与文献分析,进行了液压系统节能方案的研究。以应用较为广泛的轮式装载机为例进行了能量损失分析和节能方案对比,综合现有节能方案的优点,设计了“液压蓄能器—马达—发电机”能量回收系统。该系统利用蓄能器缓冲冲击压力并延长能量回收时间,利用马达将动臂重力势能转化为电能存储于蓄电池,提高了能量回收效率;采用双回路补油设计,减少了阀门使用数量,提升了系统响应速度,有效降低了能量损失,实现了能量回收系统的自动化、智能化管理,为装载机的节能设计提供了新思路。To address the energy loss issue in the hydraulic system during the descent of a loader arm,a study was conducted on the capacity loss and potential energy-saving methods of the hydraulic system,utilizing both literature research and investigative analysis.Taking the commonly used wheel loader as an example,energy loss analysis and a comparison of energy-saving schemes were performed.Based on the strengths and weaknesses of existing energy-saving approaches,an"accumulator-motor-generator"energy recovery system was designed.This system employs an energy storage device to cushion the impact pressure and prolong the duration of energy recovery.Additionally,it incorporates a motor to convert potential energy into electrical energy,which is then stored in a battery,thereby enhancing energy recovery efficiency.By adopting a dual-circuit oil replenishment design,the system reduces the number of valves required,enhances system response speed,effectively minimizes energy loss,achieves automation and intelligent management of the energy recovery process,and offers novel insights into the energy-saving design of loaders.

关 键 词：装载机 液压系统 能量损失 节能研究 

分 类 号：TH243[机械工程—机械制造及自动化]