| 冲击螺杆马达研制 |
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| 引用本文： | 王四一,李泉新,刘建林,赵江鹏,杨冬冬.冲击螺杆马达研制[J].煤田地质与勘探,2019,47(5):225-231. |
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| 作者姓名： | 王四一 李泉新 刘建林 赵江鹏 杨冬冬 |
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| 作者单位： | 中煤科工集团西安研究院有限公司 |
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| 基金项目： | 国家重点研发计划任务（2017YFC0804102-2） |
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| 摘 要： | 针对常规单弯螺杆马达钻进硬岩层效率低、钻头和钻具消耗大的问题，采用在马达万向轴与钻头之间增加冲击机构的方法，研制了冲击螺杆马达，其具有冲击和定向双重功能。介绍了冲击螺杆马达冲击机构结构组成和工作原理、关键零部件设计、分析了冲击螺杆马达的特点。对φ89 mm冲击机构进行了室内试验，测得其冲击力峰值达到5 000~9 000 N，与理论计算结果基本一致，由硬质合金与轴承钢组成的复合结构的冲锤和砧体的耐磨性能达到了工业性使用要求。在晋煤集团寺河煤矿进行了现场工业性试验，钻进效率较常规单弯螺杆马达提高20%~30%。
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| 关 键 词： | 螺杆马达 冲击机构 硬岩 定向钻进 钻进效率 |
| 收稿时间： | 2019-03-27 |
Development of impact screw motor |
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| Abstract: | Aiming at the problems of low efficiency and high consumption of bits and drilling tools in drilling hard rock with conventional single bend screw motor, an impact screw motor is developed by adding an impact mechanism between the universal shaft of a common screw motor and the drill bit. The impact screw motor has dual functions of impact and orientation. The structure and the working principle of impact mechanism, the design of key components and the characteristics of the impact screw motor are introduced. Laboratory tests were carried out on the φ89 mm impact mechanism, and the peak impact force was measured to be 5 000-9 000 N, which was in agreement with the theoretical calculation results. The wear resistance of the hammer and anvil of the composite structure composed of cemented carbide and bearing steel meets the requirements of industrial application. Field industrial tests have been carried out in Sihe coal mine of Jincheng Coal Group,drilling efficiency is 20%-30% higher than that of conventional single bend screw motor. |
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