高产高效工作面生产方式及其所用采煤机皆有其特殊性，要基于这些特殊性采取相应的措施，提高截齿的可靠性，降低齿耗占吨煤成本中的比例，提高采煤机有效工作时间。 High production and efficient face production methods and their use of coal mining machine has its own particularity, we should take appropriate measures based on these particularities to improve the reliability of picks, reduce the proportion of tooth consumption in the cost of coal, increase Shearer Effective working hours.