【摘要】 根据大量实验室钻削实验的测试结果 ,分析了岩石硬度系数、钻头直径、切削用量以及钻头几何角度对钻削力的影响 ,建立了钻削力的经验公式 ,给出了各修正系数的参考值 .工业生产测试结果表明 :XYZ系列岩石钻头与国内同类型产品相比具有钻削力降低、磨损小、不崩刃等优点 ,钻削扭矩和轴向阻力平均降低 16 %和 6 %左右更多还原

【Abstract】 Based on a lot of experiments, the authors discussed the effect of hardness coefficient for rock, bit diameter, drilling parameter and geometric angles for bit on drilling force. The paper also derived drilling force experimental formula and gave reference values of all kinds of correction factors. The results show that XYZ series rock bit have some advantages such as low drilling force, wearing small and not cracking knife blade, and the drilling torque and axial resistance force average reduce about 16% and 6%.更多还原