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对硬岩截割后镐形截齿磨损进行了研究,通过分析截齿在截割头上的排列位置,对截齿进行编号,采用称重和分类法得出各截齿截割后的破坏程度,并从截齿的结构和受力角度出发,找出硬岩截割各位置截齿常见失效形式及其失效原因,并从经济角度证明了新型进口截齿的优越性。从截齿的制作工艺、选择与安装、截割工作方面提出了一些建议,从而提高截齿的使用寿命。
The wear of pick-shaped pick after hard rock cutting is studied. By analyzing the arrangement position of pick on the cutting head, the picks are numbered, and the damage of each pick after cutting is obtained by weighing and classification Based on the structure and force of the picks, the common failure modes of the picks at hard rock cutters and their failure causes are found out. The advantages of the new type of picks are proved economically. From the production of picks, selection and installation, cutting work put forward some suggestions to improve the service life of picks.