ZDY1450LG型全液压坑道钻机及其关键技术  

Development and key technology of fully hydraulic dril rig ZDY1450LG

作　　者：姚亚峰 梁春苗 宋海涛 彭涛 

机构地区：[1]中煤科工集团西安研究院有限公司,陕西西安710077

出　　处：《煤田地质与勘探》2015年第6期124-127,共4页Coal Geology & Exploration

摘　　要：针对松软煤层螺旋钻进中大转矩工况下转速较低、孔内排粉不利、限制钻孔深度的问题,研制了一种高转速、长行程的ZDY1450LG型全液压履带钻机。叙述了该钻机新设计的常闭式氮气液压卡盘、伸缩缸式给进装置、防卡钻保护功能、变幅调角装置、螺旋钻杆扶正装置等关键技术。通过型式试验和工业试验验证表明,该钻机具有调整孔位和操作简单、运输方便等优点,且各关键部件设计合理,可靠性强,能提升钻机性能,提高钻进效率,减少钻孔事故。Aiming at features of spiral drilling technology in soft coal seam, a high speed and long stroke crawler drill rig ZDY1450LG has been developed. Key technologies such as closed nitrogen hydraulic chuck, extensional cylinder feeding device, anti-sticking protection function, angle adjustment device, centralizing device of helix drilling rod were stated. The type test and industrial test has verified that the rig can adjust the hole, has simple op-eration and convenient transportation, key components and the design are reasonable and reliable, improves the drilling performance and efficiency, reduces drilling accidents.

关 键 词：全液压坑道钻机 螺旋钻进 转速 关键技术 

分 类 号：P634[天文地球—地质矿产勘探]