【Keywords】coal-seam methane, nearly horizontal hole drilling, hydraulic correction, auto-orientation of jet stream
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For actual demand of nearly horizontal hole drilling of coal seam methane,the paper proposed a scheme of auto-orientation of jet stream of hydraulic correction combining with hydraulic correction technology and designed a correction system based on the scheme.
根据煤层气近水平孔钻进的实际需求,结合水力纠偏技术,提出了一种水力纠偏射流自动定向方案,并在此基础上设计了一种纠偏系统。
参考来源 - 近水平孔水力纠偏自动定向方案及其硬件实现·2,447,543篇论文数据，部分数据来源于NoteExpress
The three - meter checking device and hydraulic machine were developed to substitute the traditional three - legged divider plug gauge and correction by the thread rod.
设计的三表式检测装置和液压机具取代了传统的三脚规及塞片检测和人工操纵螺杆校正；
When used in correction mechanism of mechanical drive, hydraulic servo system manifests a long time of overshoot, large overshoot and poor correction accuracy.
当液压伺服系统用于机械传动的校正机构时，显得调整时间长，超调量大，校正精度不高。
Certain curving, the correction, cuts the machinery also to belong to hydraulic press one kind.
某些弯曲、矫正、剪切机械也属于液压机一类。
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