该机是由转盘带动钻具旋转钻进的回转钻机。
适用于轻型回转钻机钻进软岩、中硬岩、硬岩等各类地层，钻头采用多点破碎，效率较高。
For soft rock, the hard rock, hard rock and other strata, multi-point drill bit broken efficient.
本文针对钻机回转机构的各零部件进行一定分析。
The paper analyses each parts of rotary mechanism of rotary drill rig.
介绍了旋喷钻机钻进过程中几个重要工作参数的检测方法，包括钻机的钻进深度、动力头的回转速度以及摆喷的角度等。
Described the methods of detecting for some vital operating parameters of the jet-grouting drilling rig when it worked, including the drilling depth, the rotating speed and the swinging Angle.
目前，潜孔钻机普遍采用冲击回转凿入系统，用以产生回转力矩，对岩石产生剪切作用而成颗粒分离。
Currently, the DTH RIGS use generally a percussion rotary penetration sys-tem to generate the rotating torque that produces a shearing action for breaking rock.
履带式液压钻机，采用新型液压技术，耗气量低，回转扭矩大，移孔变位方便。
Crawler hydraulic drill, and USES the new type of hydraulic technology, low gas consumption, rotary torque, move the hole deflection is convenient.
改装是在XY - 44型矿用钻机基础上，增设了自动回转塔架部分，从而使钻机功能更加完善。
This modification in the XY-44 Mine drilling rig based on the addition of automatic revolving tower of the drilling rig so that the function will be more perfected.
0a型冲击-回转反循环工程钻机是以冲击钻进为主、回转钻进为辅的多功能钻机，可适应软、硬岩石等不同地层钻进的要求。
GCF-20A reverse circulation percussive rotary drill rig is a multi function drill rig with percussive drilling as the main means and rotary drilling as supplemented.
钻机可适用多种钻进工艺方法，如合金回转钻进螺旋钻进潜孔锤钻进跟管钻进等。
8 the rig is suitable for various drilling methods such as carbide bit drilling, auger drilling, DTH hammer drilling, follow - up casing drilling, etc. 3.
GCF -2 0a型冲击-回转反循环工程钻机是以冲击钻进为主、回转钻进为辅的多功能钻机，可适应软、硬岩石等不同地层钻进的要求。
GCF-20A reverse circulation percussive rotary drill rig is a multi function drill rig with percussive drilling as the main means and rotary drilling as supplemented.
GFC-120型钻机为自走式动力头回转反循环钻机，用于降水井和护坡桩基础孔以及小型水井的施工。
Rig GFC-120 is a kind of self moving reverse circulation rotary rigs. It is mainly used to drill side foundation holes and small water wells.
GFC-120型钻机为自走式动力头回转反循环钻机，用于降水井和护坡桩基础孔以及小型水井的施工。
Rig GFC-120 is a kind of self moving reverse circulation rotary rigs. It is mainly used to drill side foundation holes and small water wells.
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