摘要
为提高螺旋滚筒切削煤岩装煤率,将振动冲击技术应用于采煤机截割臂,应用TRIZ理论设计出一种以双排五星液压马达为主要驱动装置的轻量化振动冲击截割臂,应用离散单元法对螺旋滚筒轴向振动频率进行单因素数值模拟试验,确定该因素在正交试验中的水平范围;对滚筒转速、轴向振动频率以及工作振幅三种因素进行正交试验,得到其对装煤性能的影响规律。结果表明:螺旋滚筒装煤率呈现随转速增加而降低的趋势,并得到装煤性能优选方案的装煤率为54.56%。
In order to increase the coal loading rate of the spiral drum during coal and rock cutting, the vibration impact technology is applied to the shearer cutting arm, and a lightweight vibration impact cutting arm with a double-row five-star hydraulic motor as the main driving device is designed using TRIZ theory.The discrete element method is used to analyze the single-factor numerical simulation experiment of the axial vibration frequency of the spiral drum to determine the horizontal range of this factor in the orthogonal experiment;the three factors of drum speed, axial vibration frequency and working amplitude are orthogonalized, and influence of the three factors on the coal loading performance are analyzed.The results show that the coal loading rate of the spiral drum decreases with the increase of speed, and the coal loading rate of the optimal coal loading performance scheme is 54.56%.
作者
王成军
严晨
WANG Cheng-Jun;YAN Chen(School of Artificial Intelligence,Anhui University of Science and Technology,Huainan 232001,China;School of Mechanical Engineering,Anhui University of Science and Technology,Huainan 232001,China;State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines,Huainan 232001,China)
出处
《煤炭工程》
北大核心
2022年第6期188-192,共5页
Coal Engineering
基金
安徽高校协同创新项目(GXXT-2019-048)
国家创新方法工作专项(2018IM010500)
深部煤矿采动响应与灾害防控国家重点实验室(安徽理工大学)自主研究课题资助(SKLMRDPC19ZZ01)。
关键词
截割臂
轻量化设计
振动冲击
TRIZ
离散单元法
cutting arm
lightweight design
vibration impact
TRIZ
discrete element method
