| 岩心钻机改进的一些设想 |
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| 引用本文： | 李世忠.岩心钻机改进的一些设想[J].探矿工程,2000(5):11-13,19. |
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| 作者姓名： | 李世忠 |
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| 作者单位： | 中国地质大学（北京）工程技术学院,北京 |
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| 摘 要： | 分析了岩心钻机的功用、结构、效能、从钻进工艺的要求出发，通过实践试验，分析了岩心钻机的驱动、传动系统的问题，论述了钻机型式；最后提出按浅，中、深不同孔深分挡考虑岩心钻机型式的意见。
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| 关 键 词： | 岩心钻机 交流电磁调速 交流变频调速 |
| 修稿时间： | 2000/7/15 0:00:00 |
SomeConcepts on Modification of Core Drills |
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| LI Shi-zhong.SomeConcepts on Modification of Core Drills[J].Exploration Engineering(Drilling & Tunneling),2000(5):11-13,19. |
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| Authors: | LI Shi-zhong |
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| Abstract: | This paper reviews the use, structure and capability of the core drill. The problems with the drive and transmission systems of the core drill are examined through field tests in the view of the requirements of the drilling process. The versions of core drills are introduced. It is suggested that the version of core drill be considered in shallow, medium deep and deep catalogues. |
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| Keywords: | core drill speed control by alternate magnetic speed control by frequency variation full hydraulic top drive |
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