矿用镐型截齿失效机理及改进措施研究  

Study on Failure Mechanism and Improvement Technology of Picktype Cutter Used in Mine

作　　者：薛丽军 Xue Lijun(Huozhou Coal Power Group Huoyuan Tongxin Industrial Investment Co., Ltd., HuozhouShanxi 031400)

机构地区：[1]霍州煤电集团霍源通新产业投资有限公司,山西霍州031400

出　　处：《机械管理开发》2019年第3期285-286,共2页Mechanical Management and Development

摘　　要：采煤机目前采用的镐型截齿失效较为严重,分析了截齿磨损、刀头脱落、刀头崩刃、截齿完全变形和折断等失效机理。分别从截齿材料、耐磨性和截齿的安装角度等方面提出了技术改进措施。优化改进后,镐型截齿强度增强,损失率降低,使用寿命延长,镐型截齿性能得到显著改善。The pick-type cutter used in shearer at present has serious failure. The failure mechanism such as cutter wear and tear, tool head shedding, edge collapse, complete deformation and fracture of cutter are analyzed in this paper. The technical improvement measures are put forward from the aspects of the material, wear resistance and installation angle of the cutter. After optimization and improvement, the strength of pick-type cutter is enhanced, the loss rate is reduced, the service life is prolonged, and the performance of pick-type cutter is significantly improved.

关 键 词：镐型截齿 失效机理 激光熔覆 安装角度 

分 类 号：TD265[矿业工程—矿井建设]