综采工作面顶板探煤厚钻机强度分析  

Strength Analysis of Thick Coal Drilling Rig for Roof Exploration in Fully Mechanized Mining Face

作　　者：刘伟 贺昌斌 柴树刚 谢苗[2] 刘治翔[2] LIU Wei;HE Chang-Bin;CHAI Shu-Gang;XIE Miao;LIU Zhi-Xiang(China Coal Pingshuo Group Co.,Ltd.,No.1 Underground Mine,Shuozhou Shanxi036000,China;Research Institute of Mineral Resources Development and Utilization Technology and Equipment,Liaoning University of Engineeringand Technology,Fuxin Liaoning123000,China)

机构地区：[1]中煤平朔集团井工一矿,山西朔州036000 [2]辽宁工程技术大学矿产资源开发利用技术及装备研究院,辽宁阜新123000

出　　处：《机电产品开发与创新》2022年第4期149-152,共4页Development & Innovation of Machinery & Electrical Products

摘　　要：为保证综采工作面回采煤层煤炭资源的最大限度回收,利用现有钻探技术及装备结合井下的工作环境,设计出满足综采工作面回采煤层探顶煤厚需求的新型钻机。该综采工作面顶板探煤厚钻机的动力源为综采工作面现场的乳化液和气源。乳化液为钻机的油缸提供动力,气源为钻机和行走马达等提供动力。钻机采用架式回转机构,可以实现钻机水平与竖直在一定角度的自由回转。该钻机能进行折叠回收减小存放体积,能够在煤矿井下空间狭小的工况条件下应用。使用有限元分析软件对钻进工况下钻机的强度、变形和屈曲进行分析,结果可知机械手各工况下的强度、变形以及屈曲均满足相关工作要求。通过现场测试可知:工作面顶板探煤厚钻机测得19111工作面顶板煤厚平均值为12.8m,与前期人工钻探深度基本一致,满足工作要求。每个钻孔时间在5min左右,测试期间测试的总时长在70min左右。通常每个工作面每次钻孔仅需要钻探3-5个孔位,因此钻探需要耗时30~40min,相比传统人工钻孔效率提高30%左右。In order to ensure the maximum recovery of coal resources in fully mechanized mining face,a new type of drilling rig is designed to meet the needs of top coal thickness exploration in fully mechanized mining face by using existing drilling technology and equipment combined with underground working environment.The power source of the roof thick coal drilling rig of the fully mechanized mining face is the emulsion and gas source of the fully mechanized mining face.The emulsion provides power for the cylinder of the drilling rig,and the gas source provides power for the drilling rig and walking motor.The rig adopts frame-type rotary mechanism,which can realize the horizontal and vertical free rotation of the rig at a certain angle.The drilling rig can be folded and recovered to reduce the storage volume,and can be used under the condition of narrow underground space in coal mine.The finite element analysis software is used to analyze the strength,deformation and buckling of the drilling rig under drilling conditions.the results show that the strength,deformation and buckling of the manipulator meet the relevant work requirements.Through the field test,it is known that the average coal thickness of 19111 working face roof measured by coal thick drilling rig is 12.8m,which is basically consistent with the previous manual drilling depth and meets the working requirements.Each drilling time is about 5min,and the total testing time during testing is about 70min.Usually only 3-5 holes need to be drilled in each face,so drilling takes 30-40min,which is about 30%more efficient than traditional manual drilling.

关 键 词：探煤厚钻机 综采工作面 气动钻机 强度计算 

分 类 号：TP028.8[自动化与计算机技术]