煤岩特性对掘进机截割头载荷的影响分析  

Influence analysis of coal and rock properties on roadheader cutting head load

作　　者：李媛媛[1] 王海艳[1] 朱青青[1] 董丽[1] 钟佩思[2] 

机构地区：[1]青岛黄海学院机电工程学院,山东青岛266427 [2]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《工矿自动化》2016年第10期26-29,共4页Journal Of Mine Automation

基　　金：山东省自然科学基金资助项目(ZR2015EM042)

摘　　要：针对煤岩条件对掘进机截割头载荷的影响问题,提出采用有限元仿真方法对截割头截割过程进行动态仿真分析。以煤岩普氏系数为煤岩特性参数,经仿真得到不同煤岩条件下的截割头动态载荷,通过分析得到了截割头三向力随煤岩普氏系数的变化规律,即截割头载荷随煤岩普氏系数的增加而增大,且当煤岩的普氏系数增大到一定程度时,截割头的牵引阻力将成为截割头的最大载荷,而侧向力一直处于较低的水平。For influence of coal and rock conditions on roadheader cutting head load,finite element simulation method was proposed to simulate dynamic cutting process of cutting head.Dynamic cutting loads were gotten under different coal and rock conditions by taking firmness coefficient as coal and rock property parameter,and relationship between three-axis force of cutting head and firmness coefficient wasderived.The analysis results show that cutting head load increases along with increasing of firmness coefficient,and traction resistance of cutting head is the largest load when firmness coefficient of coal and rock increases to a certain value,while side resistance is always at a low level.

关 键 词：掘进机 截割头 煤岩特性 载荷分析 普氏系数 

分 类 号：TD421[矿业工程—矿山机电]