掘进机截割中截齿磨损影响因素数值模拟分析  

Numerical Simulation Analysis of the Influencing Factors of Cutting Tooth Wear in the Cutting of the Roadheader

作　　者：付李芳 Fu Lifang(Wuyang Coal Mine of Shanxi Lu'an Environmental Protection Energy Co.,Ltd.,Changzhi Shanxi 046205)

机构地区：[1]山西潞安环保能源股份开发有限公司五阳煤矿,山西长治046205

出　　处：《机械管理开发》2021年第7期64-65,119,共3页Mechanical Management and Development

摘　　要：采用有限元仿真分析的方式,分别对不同截割速度与截割深度下的截齿应力进行分析。结果表明,截割深度增加,截齿的应力区域明显增加,截齿的合金头齿体连接位置处是受到应力最大的位置,且容易与煤岩产生接触,而造成磨损。在实际应用过程中,应避免合金头齿体连接位置处与煤岩产生接触,避免造成接触磨损,从而提高掘进作业的效率。The stress of the cutting teeth under different cutting speed and cutting depth is analyzed by the finite element simulation.The results show that the depth of cutting increases,the stress area of the cutting teeth increases obviously.The joint position of alloy head teeth is the position where the stress is the largest,and it is easy to contact with coal rock,which causes wear.In the practical application,the contact between the alloy head and the coal rock should be avoided,and the contact wear should be avoided so as to improve the efficiency of the excavation.

关 键 词：截齿磨损 截割速度 截割深度 截齿应力 

分 类 号：TK223.33[动力工程及工程热物理—动力机械及工程]