截齿排列方式对采煤机工作性能的影响

赵丽娟; 刘旭南; 刘鹏

doi:10.13433/j.cnki.1003-8728.2014.1216

截齿排列方式对采煤机工作性能的影响

doi: 10.13433/j.cnki.1003-8728.2014.1216

1.
辽宁工程技术大学机械工程学院, 阜新 123000;
2.
中传重型装备有限公司西安综采设备研究院, 西安 710000

基金项目:

中国煤炭工业科技计划项目(MTKJ2009-264)资助

详细信息

作者简介:
赵丽娟(1964- ),教授,博士生导师,研究方向为机械系统动力学分析与控制和数字制造技术与信息化,zzz2120@126.com。

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出版历程
- 收稿日期: 2013-05-29
- 刊出日期: 2014-12-05

Influence of Picks Arrangement Mode on Shearer's Working Performance

1.
Code College of Mechanical Engineering, Liaoning Technical University, Fuxin 123000;
2.
Fully Mechanized Mining Equipment Institute of China Transmission Heavy Equipment Co., Ltd., Xi'an 710000

摘要

摘要: 应用Matlab软件开发了顺序式、棋盘式排列的采煤机螺旋滚筒负载计算程序,得到了滚筒截煤及含夹矸煤层的瞬时负载曲线、相应的切削图及块煤率.建立了不同截齿排列方式的采煤机的刚柔耦合模型,并针对10种典型工况进行了可靠性分析.研究表明:采煤机滚筒采用棋盘式排列截割坚固性系数为3.11的无夹矸煤时,牵引速度可以达到9m/min.与顺序式相比,平均截割比能耗降低17.8%,方正率提高21.9%,煤的切屑面积将提高1.85倍;而采用顺序式截齿排列方式时,输出轴应力超过许用应力,可靠性不高;而当采煤机截割含夹矸煤层时,应首选顺序式滚筒,以减少单齿受力,使截割工作稳定可靠.通过对顺序式排列滚筒叶片螺旋升角的优化,确定了其最佳螺旋升角为9°.
- 工作性能 /
- 截割比能耗 /
- 切屑面积 /
- 方正率 /
- 截齿排列方式
Abstract: Applying Matlab software,the shearer spiral drum's load calculation program of sequential and punnett arrangements has been developed. The instantaneous load curves,corresponding chips diagram and lump coal rate of drum cutting coal and coal seam contain dirt band have been gotten. The shearer's rigid-flexible coupling models of different picks arrangements have been built and reliability analysis has been done under ten typical working conditions. Result shows that: when the shearer is cutting coal seam,whose consistency coefficient is 3.11,without dirt band by using punnett drum,the haulage speed can reach 9m/min; compared with the sequential,the mean specific energy consumption for cutting will reduce 17.8%,the squareness will increase 21.9% and chip's area of coal will increase by 1. 85 times; when the shearer using sequential picks arrangement mode,the output shaft's stress exceeds allowable stress; when the shearer is cutting coal seam contained dirt band, the sequential arrangement drum should be chosen preferentially,to reduce the force affected on a single pick and to make the cutting stable and reliable; by further spiral angle optimization analysis on the blade of this sequential drum,the best spiral angle of 9癶as been decided.
- calculations /
- chips area /
- coal /
- computer simulation /
- computer software

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参考文献(18)

[1]	高进,贺海涛厚煤层综采-次采全高技术在神东矿区的应用[J]煤炭学报,2010,35(11);1888-1892 Can J,He H T.Application of fully mechanized full seam one passing mining technology to thick seam in Shendong mining area[J]Journal of China Coal Society,2010,35(11):1888-1892(in Chinese)
[] 刘春生,靳立红基于截槽非对称条件镐形截齿的截割力学模型[J]煤炭学报,2009,34(7);983-987 Liu C S,Jin L H.The cut mechanical model of pick-shaped cutter under conditions of dissymmetrical slotting [J].Journal of China Coal Society,2009,34 (7): 983-987(in Chinese)
[3]	赵丽娟,何景强,许军,等截齿排列方式对薄煤层采煤机载荷的影响[J]煤炭学报,2011,36(8);1401-1406 Zhao L J,He J Q,Xu J,et al.Elfecta of pick arrangement on the load of shearer in the thin coal seam[J].Journal of China Coal Society,2011,36(8):1401-1406(in Chinese)
[4]	e.3.xo3xx,s.3.MenaMeq,s.s.TOx.PA3PYIIIEHHE YTlIEhI BbIEMOLIHbIMH MAIIIHHAMH[M] MocxBa,1984:141-186
[5]	Somanchi S,Kecojevic V,Kozminski T.Advance design of lacing and breakout patterns for shearer drums[J] Mining Technology IMM Transactaions Sectaion A,2005, 114(2):118-124
[6]	李晓豁,吕明,史秀宝,DO TRUNG HIEU两种不同截齿排列截割头性能的比较[J]辽宁工程技术大学学报,2010,29(1):136-138 LI X H,Lii M,Shi X B.Comparing and research on performance of two cutting heads with different kinds of pick arrangement[J]Journal of Liaoning Technical University,2010,29(1):136-138(in Chinese)
[7]	Du C L,Liu S Y,Cui X X,et al.Study on pick arrangement of shearer drum based on load lluctauation[J].Journal of China University of Mining&Technology,2008,18(2): 305-310
[8]	赵丽娟,马永志基于多体动力学的采煤机截割部可靠陛研究[J]煤炭学报,2009,34(9):1271-1275 Zhao L J,Ma Y Z.Reliability research on shearer cutting unit based on multi-body dynamic、[J]Journal of China Coal Society,2009,34(9):1271-1275(in Chinese)
[9]	赵丽娟,董萌萌含硫化铁结核薄煤层采煤机工作机构载荷问题[J]煤炭学报,2009,34(6);840-844 Zhao L J,Dong M M.Load problems of working mechanism of the shearer in containing pyrites and thin coal seam [J].Journal of China Coal Society,2009,34 (6); 840-844(in Chinese)
[10]	李晓豁掘进机截割的关键技术研究[M]北京:机械工业出版社,2007 Li X H.Research on road header'、cutting key technology[M].Beijing;China Machine Press,2007(in Chinese)
[11]	屈中华滚筒采煤机螺旋滚筒的参数优化设计研究[D] 沈阳:东北大学,2008 Qu Z H.Optimization design resign research for parameter of the shearer screw drum[D]Shenyang; Northeastern University,2008(in Chinese)
[12]	程雪,杜长龙,李建平采煤机滚筒与块煤率的关系分析[J]煤矿机械,2008,29(12);76-77 Cheng X,Du C L,Li J P.Analysis of shearer drum and lump coal percentage[J].Coal Mine Machiner,2008,29 (12);76-77(in Chinese)
[13]	徐建文,曹伟康,田素川,等采煤机滚筒参数对块煤率的影响[J]现代矿业,2010,4(4);62-64 Xu JW,CanWK,Tian S C,et al.The inlluence of drum parameters of coal shearer on lump coal rate[J] Monden Mining,2010,4(4);62-64(in Chinese)
[14]	田金凤,祁恒军,毛淑兰,等采煤机截齿可靠性和寿命分析[J]煤矿机械,2002,(2); 26-27 Tian J F,Qi H J,Mao S L,et al.Analysis of the reliability and life_span of the shearer's pick[J]Coal Mine Machiner,2002,(2);26-27(in Chinese)
[15]	刘春生,于信伟,任昌玉滚筒式采煤机工作机构[M]哈尔滨:哈尔滨工业大学出版社,2010 104-118 Liu C S,Yu XW,Ren C Y.Working mechanism of drum shearer[M]Harbin:Harbin Engineering University Press,2010:104-118(in Chinese)
[16]	马正兰变速截割采煤机关键技术研究[D]北京:中国矿业大学,2009 Ma Z L.Study on key technology of shearer with variable speed cutting [D [.Beijing ; China University of Mining& Technology,2009(in Chinese)
[17]	廉自生,刘楷安采煤机摇臂虚拟样机及其动力学分析[J]煤炭学报,2005,30(6);801-804 Lian Z S,Liu K A.Virtual prototype of shearer ranging arm and its dynamic、analysis[J].Journal of China Coal Society,2005,30(6):801-804(in Chinese)
[18]	赵丽娟,刘旭南,曹拓纵轴式掘进机横摆运动参数的优化设计[J]煤炭学报,2012,37(12);2112-2117 Zhao L J,Liu X N,Cao T.Horizontal swing movement parameters optimization design of longitudinal road header[J]Journal of China Coal Society,2012,37 (12);2112-2117(in Chinese)