期刊文献+

机械化采样破冻煤层钻头设计研究

DESIGN STUDY OF FROZEN-LAYER DESTROYING DRILL BIT FOR MECHANICAL SAMPLING
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摘要 经过系统的理论分析计算和多次试验 ,采用最新螺旋面钻头设计方法 ,以完善的制造工艺 ,利用合金钢和高速钢提高刚性和强度 ,研制了能满足高寒冷地区破冻煤层取煤样的螺旋钻头。该钻头能实现 - Through systematic theoritical analysis and calculation, as well as test of many times, an auger type drill bit for destroying frozen-layer to take coal sample in highly cold region has been developed at last by adopting design method of the newest auger-surface drill bit, combining with perfect manufacture technology, and using alloy steel and high-speed steel to enhance rigidity and solidity. The developed drill bit can be satisfactorily used to take sample from frozen coal layer under temperature of below -30℃?
出处 《热力发电》 CAS 北大核心 2002年第6期16-18,共3页 Thermal Power Generation
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  • 1杨广勇.金属切削原理与刀具[M].北京理工大学出版社,1993..

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