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我矿将军寨坑口,对БA—100型潜孔钻机作了改进,使纯凿岩时间提高1倍,凿岩速度由平均2～3(米/工班),提高到8～9(米/工班),中小齿轮、轴承和电动机的使用寿命从约15天延长到半年左右,而操作人员却从3人减为2人。扭转了钻凿天井中心孔落后于吊罐掘进的局面。一、钻头的改进在原塔形一字钻头母体上镶焊柱齿合金(见图1),钻头使用寿命由1.2米延长到近10米,钻进一个40米高的吊罐中心孔,从原来需换钻头34次减少到4～6次,提高了纯凿岩时间。
I general mine Zhaikou mouth, on the B-100 DTH drilling rig made an improvement, so that the pure rock drilling time increased by 1 times the drilling speed by an average of 2 to 3 (m / work) to 8 to 9 (m / Working class), the service life of small and medium-sized gears, bearings and motors was extended from about 15 days to about half a year, while the number of operators was reduced from 3 to 2. Reversing the central hole drilling shaft lagging behind the tunneling situation. First, the improvement of the drill In the original tower-shaped drill bit body welded stud alloy (see Figure 1), drill life extended from 1.2 meters to nearly 10 meters, drilling a 40-meter-high hanging pot center hole from the original Need to change the bit 34 times reduced to 4 to 6 times, raising the pure rock drilling time.