基于综合截割性能优化的采煤机变速截割控制  

Variable Speed Cutting Control of Shearer Based on Cutting Performance Optimization

作　　者：刘永刚[1,2] 侯立良 秦大同[1,2] 闫忠良[2] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]重庆大学汽车工程学院,重庆400044

出　　处：《东北大学学报（自然科学版）》2018年第1期118-122,137,共6页Journal of Northeastern University(Natural Science)

基　　金：国家重点基础研究发展计划项目(2014CB046304)

摘　　要：针对目前滚筒采煤机在生产过程中采用单一牵引调速影响截割性能的问题,对采煤机的变速截割进行了探索研究.考虑变速截割的可行性及可靠性,按截割阻抗的大小对煤层硬度进行了平均划分;综合考虑不同截割性能指标的要求,对其进行加权平均作为优化目标,对截割运动参数进行了优化;在此基础上,对由截割阻抗变化引起的不同工况的调速策略进行了比较分析,得到了截割性能最优的变速截割调速控制策略.研究结果可为采煤机高效变速截割奠定理论基础.Variable speed cutting of shearer was studied,in order to solve the practical problem that the cutting performance of the drum shearer decreases when changing the hauling speed only.Considering the feasibility and reliability of variable speed cutting,the hardness of the coal seam was divided into several ranges by its cutting impedance. Aiming at the weighted average optimization of lump coal rate,cutting energy consumption rate and productivity,the cutting motion parameters of shearer were optimized. Besides,variaous speed control strategies of conditions caused by cutting impedance change were compared,and the speed control strategies for the best cutting performance of different conditions were obtained. The results provide a good reference for the research of high efficiency variable speed cutting.

关 键 词：采煤机 参数优化 截割性能 变速截割 调速控制 

分 类 号：TD421[矿业工程—矿山机电]