Research on bionic impact compacting bits

Bionic percussion-compact bits based on the theory of bionic nonsmooth was designed in order to improve the percussion-compact bits penetration rate and reduce the loss of impact. Through the numerical simulation analysis, the ground stress characteristics were revealed, then the bits were produced and used to do the field experiments. Biological dung beetle wastaken as bionic prototype, and regularly nonsmooth morphology shape was decorated on the percus-sion-compact bits'surface, and then the related tests were conducted. The results are that of single impact penetration bionic percussion-compact bits increased by about 45% compared with the conventional percussion-compact bits, and the impact energy needed for unit footage fell by 47%. the impact compaction borehole drilling cycle can be greatly shortened, and the cost of drilling is reduced and social and economic benefit are remarkable.