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针对底抽巷抽采瓦斯保护煤巷掘进的施工要求,设计了底抽巷全断面履带钻机,介绍了钻机在研制过程中针对多自由度变幅机构关键部件选型、铰接式给进装置设计、对开式夹持器等关键技术的研究。钻机在义煤集团孟津矿和阳煤集团平舒矿分别进行了现场工业性试验,试验表明该型钻机在底抽巷施工全断面钻孔效率高、安全可靠,具有显著的技术优势。
Aiming at the construction requirements of underground gas drainage tunnel with gas protection coal roadway, the paper designed a full section crawler drilling machine with bottom pumping tunnel, and introduced the key components selection and articulated feeding device design of drilling rig during the development process , Open clamper and other key technologies. Drilling rigs have carried out on-site industrial tests respectively at Mengjin Mine of Yi Coal Group and Pingshu Mine of Yangquan Coal Group. The tests show that the drill has the advantages of high efficiency, safety and reliability in drilling in all sections of bottom tunneling with obvious technological advantages.