摘要
在掘进机与超前支护协同作业过程中,为避免超前支护与掘进机发生碰撞,要求掘进机与超前支护在各种工况下的转动角度保持在某一范围内。因此,分析了超前支护与掘进机在协同转弯工况下的碰撞情况,并根据发生碰撞时的几何关系,建立了超前支护与掘进机转动一角度后的移动步长数学模型,推导该步长的计算公式。并以最大移动步长为指标,研究了避免干涉前提下设备转角对移动步长的影响规律。研究表明:当仅掘进机转向移动时,掘进机的转角越大,可移动的范围越小;当掘进机铲板滞后于超前支护且超前支护先转向进给时,设备转角越小掘进机的最大移动距离越大;当掘进机铲板超前于超前支护且掘进机先转向进给时,设备转角越小超前支护的最大进给距离越大。
In order to avoid collision between the support and roadheader,in their collaborative operation process,it is required that the rotation angle of the two equipment be kept in a certain range under various working conditions.Collision between them under cooperative turning condition is analyzed.According to the geometric relationship of the collision,the mathematical model of moving step after the advance support and roadheader rotate one angle is established,and the calculation method of changing step is deduced.Taking the maximum moving step as the index,the influence of equipment rotation angle on moving step under the premise of avoiding interference is studied.The result shows that,when only the roadheader turns to move,the larger the rotation angle of the roadheader,the smaller the movable range;when the roadheader shovel plate lags behind the advance support and the support first turns to the feed,the smaller the equipment angle,the greater the maximum moving distance of the roadheader;when the roadheader shovel plate is ahead of the advance support and the roadheader turns to feed first,the smaller the rotation angle of the equipment,the greater the maximum feed distance of the advance support.
作者
巩永春
孙晓虎
李伟东
汪义龙
刘杰
谢苗
刘治翔
邹康
GONG Yongchun;SUN Xiaohu;LI Weidong;WANG Yilong;LIU Jie;XIE Miao;LIU Zhixiang;ZOU Kang(Huaneng Coal Technology Research Co.,Ltd.,Beijing 100071,China;Liaoning Technical University,Fuxin 123000,China)
出处
《煤炭工程》
北大核心
2023年第10期118-124,共7页
Coal Engineering
基金
华能集团总部科技项目(HNKJ20-H34)。
关键词
掘进机
超前支护装备
协同作业
干涉特性
roadheader
advance support equipment
collaborative work
interference characteristics
