GYD-300型全液压动力头工程钻机的研制

Development of GYD-300 Fully Hydraulic Driving Head Engineering Rig

摘要:

GYD-300型全液压动力头工程钻机为全液压驱动，动力头反循环式机型。液压系统采用插装阀集成结构，电液复合操作。使用PC控制监测系统，适时检测孔底各相关压力，对不同地层进行范围设置，实现钻进过程中孔底的自动、手动恒压钻进。重点介绍了该钻机的结构特点、实验情况、主要技术参数等。

Abstract:

GYD-300 fully hydraulic driving head engineering rig is a model of fully hydraulic driving and driving head reverse circulation. Hydraulic system is operated by electro-hydraulic with integrated structure of cartridge valve. PC monitoring system was used to monitor pressure at the bottom of borehole; according to the monitoring data of different formations to set different drilling pressure, so automatic and manual constant pressure drilling were realized. The paper introduced the rig on its structural feature, experiment and main technical parameters.