适应复杂煤层救援钻进工艺的钻具快速拧卸装置

A rapid screw-off device for drilling tools suitable for rescue drilling of complex coal seams

针对煤矿事故中解救被困人员效率不高的钻井工艺问题,分析了影响快速钻进的因素。通过救援用车载钻机模块化和智能化技术,开发了一种钻具快速拧卸装置;装置可支持多种规格直径钻具快速通过并实现了节省辅助作业时间的高效对中、夹持、自动拧卸功能。对模块化平台的具体机械结构进行了优化,采用了井口平台自动调平策略,形成了一键自动化拧卸装置;快速拧卸钻具装置可与主机快速拼装,实现了节省救援时间,快速钻具拧卸的目的。

Aiming at the problem of low drilling technology in rescuing trapped persons in coal mine accidents, the factors affecting fast drilling are analyzed. By rescue vehicle rig modular and intelligent technology, we developed a fast twist drill discharge device. The device can support the rapid passage of various diameters of drilling tools and realize the efficient centering,clamping and automatic unwinding functions that save the time of auxiliary operation. The specific mechanical structure of the modular platform was optimized, and the automatic leveling strategy of the wellhead platform was adopted to form a one-key automatic unscrewing device. The quick screw-off device can be quickly assembled with the main engine, which saves the rescue time and achieves the purpose of quick screw-off of drilling tools.