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本文从全液压岩心钻机的调速性能、长行程给进、无塔升降、提高机械化、仪表化程度、简化钻机结构等方面与油压立轴式钻机的发展、局限性及国外对该类型钻机改造的新动向等做了较全面的对比。并对全液压岩心钻机的传动效率、成本、维护保养做了具体分析。同时还介绍了国内外这两类钻机在生产中取得的部分经济指标。从理论上和生产使用效果两方面肯定了全液压钻机是岩心钻机的发展趋向。
In this paper, the development and limitations of hydraulic vertical shaft drilling rig from the aspects of speed governing performance of full hydraulic core drilling rig, long stroke feeding, no tower lifting, enhancing mechanization, instrumentation degree and simplifying the structure of drilling rig are introduced. The new trend made a more comprehensive comparison. The author also made a concrete analysis on the transmission efficiency, cost and maintenance of the full hydraulic core drilling rig. At the same time, some economic indexes obtained by both types of rigs at home and abroad are also introduced. It is confirmed that the whole hydraulic drilling rig is the development trend of the core drilling rig from the aspects of theory and production and use effect.