| 绳索取心钻杆负角度螺纹扭矩计算分析和测试研究 |
| 投稿时间：2016-03-04 修订日期：2016-03-04 点此下载全文 |
| 引用本文：高申友,孙建华,蔡纪雄,等.绳索取心钻杆负角度螺纹扭矩计算分析和测试研究[J].钻探工程,2016,43(5):45-50.GAO Shen-you,SUN Jian-hua,CAI Ji-xiong,et al. Calculation Analysis on Negative Angle Thread Torque of Wire-line Coring Drill Pipe and Test Research[J]. Drilling Engineering, 2016,43(5):45-50. |
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| 基金项目:“十二五”国家高技术研究发展计划（863计划）“4000 m地质岩心钻探成套技术装备”（编号：2014AA06A607） |
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| 中文摘要:分析了绳索取心钻杆负角度螺纹受力状态，以静力学和材料力学为基础计算了用于深孔绳索取心钻探的CNHT绳索取心钻杆螺纹应力情况和抗扭能力。同时，针对不同锥度和牙高的负角度螺纹进行了理论计算和静扭测试比对，理论计算结果与测试结果非常接近，确定了该计算方法的准确性，优化总结出抗扭能力较强的负角度螺纹参数。 |
| 中文关键词:绳索取心钻杆 负角度螺纹 最大扭矩 受力分析 静扭测试 |
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| Calculation Analysis on Negative Angle Thread Torque of Wire-line Coring Drill Pipe and Test Research |
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| Abstract:The analysis is made on the stress state of negative angle thread of wire-line coring drill pipe, the thread stress situation and anti-twist property of CNHT drill pipe used for deep hole wire-line core drilling are calculated based on static and material mechanics. Theoretical calculations and static torsion test were taken on negative angle thread with different taper and tooth height. It is found that theoretical results and test results are very close; by which, the accuracy of the calculation method is determined and the parameters of negative angle thread with strong anti-twist property are optimized and summarized. |
| keywords:wire-line coring drill pipe negative angle thread maximum torque stress analysis static torsion test |
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