中南大学学报（自然科学版）2011，Vol.42Issue(5)：1321-1325,5.
仿生耦合孕镶金刚石钻头的试验及碎岩机理分析
Experiment and rock fragmentation mechanism of bionic coupling impregnated diamond bit
摘要
Abstract
Bionic coupling theory was applied on design of the drilling bit in order to improve the drilling efficiency and the life of impregnated diamond bit, and the bionic coupling impregnated diamond bit was developed.Rock fragmentation mechanism was expatiated, and rock powders were analyzed.The results show that the drilling efficiency is increased by 42.7％ and the life by 73.8％ compared with the conventional impregnated diamond bit.Specific pressure on the bionic coupling bit's crown is increased, which is helpful to self sharpening of the bit and crack propagation of rock, and the micro flow field is generated because of the existence of non-smooth surface.The size of rock dust particles crushed by the bionic coupling bit is larger than that broken by ordinary bits.关键词
仿生耦合/孕镶金刚石钻头/耦元/非光滑度/碎岩机理分类
矿业与冶金引用本文复制引用
王传留,孙友宏,刘宝昌,王银霞..仿生耦合孕镶金刚石钻头的试验及碎岩机理分析[J].中南大学学报（自然科学版）,2011,42(5):1321-1325,5.基金项目
国家高技术研究发展计划("863"计划)项目(2006AA06Z221) （"863"计划）
