刨煤机刨刀冲击动态响应仿真分析  

SIMULATION ANALYSIS OF IMPACT DYNAMIC RESPONSE OF A COAL PLOW BIT

作　　者：康晓敏[1] 王伟超[1] KANG XiaoMin;WANG WeiChao(School of Mechanical Engineering,Liaoning Technical University,Fuxin 123000,China)

机构地区：[1]辽宁工程技术大学机械工程学院,阜新123000

出　　处：《机械强度》2021年第6期1472-1478,共7页Journal of Mechanical Strength

基　　金：国家自然科学基金项目(51104082)资助。

摘　　要：刨刀是刨煤机的关键零部件之一,是刨煤机直接接触煤岩的工作部分。刨刀刨煤时,由于煤层条件复杂恶劣,尤其是遇到硬质包裹体等坚硬矿物时,刨刀受力急剧增加。刨刀受到冲击,容易发生刀头脱落、刀身折断等故障,消耗量非常大。因此研究刨煤过程中刨刀受到冲击时的动态响应至关重要。采用有限元仿真分析方法,针对刨煤机刨刀受到冲击时的动态响应进行深入研究,为刨刀材料选择、刨刀结构设计与优化、提高刨刀可靠性以及合理选择刨削速度等刨煤机工况参数方面提供理论依据,对我国采煤机械设计以及煤炭行业的发展具有重要意义。The plow bit is one of the key parts of the coal plow, and is the working part of the coal plow that directly contacts the coal and rock. When plowing the coal, due to the complex and tough coal seam conditions, especially when encountering hard minerals such as hard inclusions, the force on the plow bit increases sharply. The plow bit is impacted, which easily results in the failure of plow bit, such as plow bit head losing, plow bit body broken. And the consumption of plow bit is very large. Therefore, it is important to study the dynamic response of the plow bit when it is impacted during plowing. In this paper, the finite element simulation analysis method is used to conduct in-depth research on the dynamic response of the plow bit under impact. It provides theoretical references for the material selection of plow bit, the design and optimization of plow bit structure, the improvement of plow bit reliability, and the reasonable selection of the working parameters such as plow speed. It is of great significance to the design of China’s coal mining machinery and the development of coal industry.

关 键 词：刨煤机 刨刀 冲击 动态响应 

分 类 号：TD421[矿业工程—矿山机电]