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一、概 述由地矿部勘探技术研究所设计研制，无锡钻探工具厂生产的YZ-54-Ⅱ型阀式正作用液动冲击器，自83年通过鉴定后，经过一年来的推广使用，显示了它具有强大的生命力。目前已有地质、建材系统二十九个单位来人来函商洽定购该冲击器百余套。据不完全统计，1984年仅湖北一队、五队、七队，河南四队，安徽建材队的10个机台，共完成冲击回转进尺2527.10m，完工钻孔20个，平均机械钻速比回转钻提高15～76％，钻孔质量均达到设计要求。82—84年用YZ-54-Ⅱ型冲击器完成的工作量总计为6000.61m。由于冲击回转钻进技术的推广与应用，提高了钻探工程的效率与质量，“打滑”地层钻进难的问题基本得到解决，生产成本下降，从而获得了显著的经济效果。
I. Overview YZ-54-Ⅱ valve type positive type hydraulic impactor, designed and developed by the Institute of Exploration Technology of the Ministry of Geology and Minerals, and produced by Wuxi Drilling Tool Factory, has been approved for use since the year of 83 and has been used for a year It has a strong vitality. At present, twenty-nine units of geological and building materials systems have come to negotiate and order over one hundred sets of the impactor. According to incomplete statistics, in 1984, only 10 machines from Hubei First Team, Five Teams, Seven Teams, Henan Four Teams and Anhui Building Materials Teams completed a total of 2527.10m impact and rotation drilling and 20 drilling holes with an average ROP ratio Rotary drilling increased 15 ~ 76%, drilling quality meet the design requirements. 82-84 years with YZ-54-Ⅱ type of impactor to complete the workload of a total of 6000.61m. Due to the popularization and application of impact rotary drilling technology, the efficiency and quality of drilling engineering are improved. The difficult problem of “slippery” strata drilling is basically solved, and the production cost is reduced, thereby obtaining remarkable economic results.