| 差动式大直径多钻头组合钻具 |
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| 引用本文： | 胡定成.差动式大直径多钻头组合钻具[J].地质与勘探,1998,34(3):60-62. |
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| 作者姓名： | 胡定成 |
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| 作者单位： | 铁道建筑研究设计院 |
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| 摘 要： | 介绍一种新型大直径钻具－－－差动式多钻头组合钻具的结构原理、力学特性和关键技术等内容。
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| 关 键 词： | 钻头 组合钻具 差动式钻头 桩孔 |
A STUDY ON THE MULTI-HEAD LARGE DIAMETER DRILLBIT CONTAINING DIFFERENTIAL MECHANISM |
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| Hu Dingcheng.A STUDY ON THE MULTI-HEAD LARGE DIAMETER DRILLBIT CONTAINING DIFFERENTIAL MECHANISM[J].Geology and Prospecting,1998,34(3):60-62. |
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| Authors: | Hu Dingcheng |
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| Institution: | Hu Dingcheng |
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| Abstract: | A multi-head large diameter drillbit containing differential mechanism were designed. The structure drilling process,mechanical properties and key techniques of this new kind of drillbit were introduced. |
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| Keywords: | differential mechanism drillbit |
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