Research on Cutting Characteristics of Impact Cutter Teeth of Coal Mining Machine Based on EDEM
In order to solve the problems of large tooth wear and low cutting efficiency of coal mining machine when cutting hard coal seams,a new impact pre-cracking type cutter based on hydraulic drive is proposed,and the cutting characteristics of the cutting drum with and without impact of the cutter are investigated by simulation analysis method.The results show that the cutting eficiency of the coal miner is increased by 20.34％after adopting the new impact cut-off teeth,and the cutting force of the cut-off teeth is increased by 20％,which greatly improves the cutting efficiency and economy of the coal miner.
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