煤矿井下掘进工作面自移机尾设备上下坡适应性分析

Analysis on uphill and downhill adaptability of self-moving tail equipment in underground heading face of coal mine

针对低矮巷道掘进工作面环境下转载运输机和自移机尾在联合使用时出现的干涉碰撞等问题,对低矮巷道掘进工作面转载运输机和自移机尾适应性进行了分析,根据自移机尾结构特征、工作原理、工况特征,建立了自移机尾与转载输送机的运动学分析模型,分析不同工况下自移机尾与转载输送机的适应性。使用MATLAB软件对运动学分析模型完成仿真计算模型建立,并分析不同工况条件下转载机在自移机尾上滑移时与顶板干涉碰撞规律。研究结果表明,巷道坡度越大则同一型号设备相匹配的巷道高度越大。当巷道高度一定时,巷道坡度越大则能够匹配的机身长度越小。当巷道坡度一定时,机身长度越长则需要的巷道高度越大。通过在哈拉沟煤矿31107运输巷的掘进工作面自移机尾和转载机选型应用结果表明,所选设备在现场使用情况良好,自移机尾设备、转载机设备和现场工况适应性良好。

In response to the interference collision problems that occur when the transfer conveyor and the self moving machine tail are used together in the low roadway excavation working face environment,the adaptability of the transfer conveyor and the self moving machine tail in the low roadway excavation working face was analyzed.Based upon structural characteristics,working principles,and working conditions of the self moving machine tail,a kinematic analysis model of the self moving machine tail and the transfer conveyor was established to analyze the adaptability of the self moving machine tail and the transfer conveyor under different working conditions.The kinematics analysis model is established by using MATLAB software,and the collision law between the transfer machine and the roof is analyzed when the transfer machine slips on the tail under different working conditions.The results show that the greater the slope of the roadway is,the greater the height of the roadway matched by the same type of equipment is,when the height of the roadway is constant,the larger the slope of the roadway is,the smaller the length of the matching fuselage is,when the slope of the roadway is constant,the longer the length of the fuselage is,the greater the height of the roadway is.According to selection and application results of the self moving machine tail and transfer machine in the heading face of 31107 transportation roadway in Halagou Coal Mine,the results show that the selected equipment has great on-site usage,and the adaptability of the self moving machine tail equipment,transfer machine equipment and on-site working conditions is also good.