装载机铲斗铲装速度对铲装阻力的影响研究  

Study on the Influence of Shovel Loading Speed of Loader Bucket on Shovel Resistance

作　　者：黄中一 徐武彬[1] 李冰[1] 温超 HUANG Zhong-yi;XU Wu-bin;LI Bing;WEN Chao(School of Mechanical and Traffic Engineering,Guangxi University of Science and Technology,Guangxi Liuzhou 545006,China)

机构地区：[1]广西科技大学机械与交通工程学院,广西柳州545006

出　　处：《机械设计与制造》2023年第1期40-44,共5页Machinery Design & Manufacture

基　　金：广西自然科学基金(2018GXNSFBA281195);广西科技计划项目(桂科AC16380032);柳州科学研究与技术开发计划项目(2016C050202);柳州科学研究与技术开发计划项目(2017BC20201);广西高等教育本科教学改革工程项目(2016JGZ139);广西研究生教育创新计划项目(GKYC201806)。

摘　　要：铲斗插入物料过程是装载机循环作业中能量消耗最大的一个环节,插入速度对铲斗作业阻力起着明显的影响,但现阶段作业阻力研究缺乏插入速度对其影响的研究。基于离散元素法,从散体力学的角度获取更为精确可重复性的作业阻力,并以此为依据揭示插入速度对作业阻力的影响,提出一种获取插入深度、插入速度对作业阻力影响的关系方程式的方法,并根据关系方程式对插入过程的速度进行规划,获得一条高效节能的速度曲线,驱动装载机作业。通过对优化速度前后的作业阻力和能量损耗进行分析,得出使用该方法优化的速度曲线驱动铲斗插入料堆过程,能耗减小8.65%,为装载机减阻节能和自动化控制研究提供新思路。The process of bucket insertion is the most energy-consuming part of the loader’s cycle operation.The insertion speed has a significant impact on the bucket work resistance.However,the study of the influence of the insertion speed is lacking in the field of work resistance currently.Based on the discrete element method,a more accurate and reproducible work resistance is obtained from the perspective of the loose mechanics to find out the influence of the insertion speed on the work resistance and the method of obtaining the working depth and the insertion speed on the work resistance.The method of relational equations,and the speed of the insertion process is planned according to the relational equation,and an efficient and energy-saving speed curve is obtained to drive the loader operation.By analyzing the working resistance and energy loss before and after the optimized speed,the speed curve driven by the method is used to drive the bucket into the pile reactor,and the energy consumption is reduced by 8.65%,which implicates for the drag reduction,energy saving and automatic control of the loader.

关 键 词：铲斗 装载机 铲装过程 高效节能 速度曲线 

分 类 号：TH16[机械工程—机械制造及自动化] TH164