双通道反循环水龙头的设计与应用  

Design and Application of reverse circulation swivel with two channels

作　　者：刘建林[1] 王清岩[1] 殷琨[1] 郑俊华[1] 

机构地区：[1]吉林大学建设工程学院,吉林长春130026

出　　处：《凿岩机械气动工具》2007年第4期15-17,共3页Rock Drilling Machinery & Pneumatic Tools

基　　金：中国地质调查研究院项目(项目编号200120170130)

摘　　要：为利用GSD—II型钻机实施贯通式潜孔锤反循环连续取芯(样)钻进工艺,对该钻机动力头的主轴结构进行了改进,设计了与之配套的专用反循环水龙头。本文介绍了所设计的反循环水龙头的结构组成及其现场使用情况。In order to put the technique of coring continually by reverse circulation with hollowthrough DTH hammer in to practice with the GSD-Ⅱ drill, the shaft of GSD- Ⅱ drill＇ s motor head is improved. The special reverse circulation swivel that matches with the improved shaft is developed. The construction and application of the swivel are introduced in this paper.

关 键 词：GSD-Ⅱ型钻机 反循环水龙头 设计与应用 

分 类 号：P634.5[天文地球—地质矿产勘探]