| 潜孔锤同心跟管钻具零件强度分析与研究 |
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| 引用本文： | 赵大军,吴晓寒,徐龙宪,于萍,计胜利.潜孔锤同心跟管钻具零件强度分析与研究[J].煤田地质与勘探,2006,34(1):79-80. |
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| 作者姓名： | 赵大军 吴晓寒 徐龙宪 于萍 计胜利 |
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| 作者单位： | 吉林大学建设工程学院, 吉林 长春 130026 |
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| 摘 要： | 介绍了适合卵砾石地层地震勘探孔施工用的潜孔锤同心跟管钻具的结构和工作原理。针对钻具使用中出现的套管螺纹和内外钻头冲击面强度低、寿命短的问题,采用有限元方法对钻具的零件进行了强度分析,并提出了提高套管螺纹和内外钻头寿命的方法。
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| 关 键 词： | 潜孔锤同心跟管钻具 套管螺纹 钻头 强度 |
| 文章编号： | 1001-1986（2006）01-0079-02 |
| 收稿时间： | 2005-07-13 |
| 修稿时间： | 2005年7月13日 |
Analysis and research on accessories intensity of DTH hammer drilling with concentric simultaneous casing |
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| ZHAO Da-jun,WU Xiao-han,XU Long-xian,YU Ping,JI Sheng-li.Analysis and research on accessories intensity of DTH hammer drilling with concentric simultaneous casing[J].Coal Geology & Exploration,2006,34(1):79-80. |
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| Authors: | ZHAO Da-jun WU Xiao-han XU Long-xian YU Ping JI Sheng-li |
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| Institution: | College of Construction Engineering of Jilin University, Changchun 130026, China |
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| Abstract: | The paper introduced the structure and principle of DTH hammer drilling with concentric simultaneous casing,which used in seismic exploration drill in gravel.In view of the problems such as low intensity,short lifespan of casing thread and the impact face of inner bit and outer bid in using process,the intensity of the accessories is analyzed with finite element technique.The paper proposed the methods of developing lifespan of casing thread and inner bit and outer bit. |
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| Keywords: | DTH hammer drilling with concentric simultaneous casing casing thread bit intensity |
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