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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

赵丽娟, 刘旭南, 刘鹏. 截齿排列方式对采煤机工作性能的影响[J]. 机械科学与技术, 2014, 33(12): 1838-1844. doi: 10.13433/j.cnki.1003-8728.2014.1216
引用本文: 赵丽娟, 刘旭南, 刘鹏. 截齿排列方式对采煤机工作性能的影响[J]. 机械科学与技术, 2014, 33(12): 1838-1844. doi: 10.13433/j.cnki.1003-8728.2014.1216
Zhao Lijuan, Liu Xu'nan, Liu Peng. Influence of Picks Arrangement Mode on Shearer's Working Performance[J]. Mechanical Science and Technology for Aerospace Engineering, 2014, 33(12): 1838-1844. doi: 10.13433/j.cnki.1003-8728.2014.1216
Citation: Zhao Lijuan, Liu Xu'nan, Liu Peng. Influence of Picks Arrangement Mode on Shearer's Working Performance[J]. Mechanical Science and Technology for Aerospace Engineering, 2014, 33(12): 1838-1844. 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
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。

Influence of Picks Arrangement Mode on Shearer's Working Performance

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

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