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炮眼角度指示器,是为使所钻炮眼的角度(水平或倾斜角度)能符合爆破说明书的要求而设计制作的。该指示器结构简单、制作方便,铁、铝材料均可,各矿都可以自己制作,其结构如图所示。炮眼指示器的制作方法是将固定底座1与固定圆杆2焊接,固定刻度盘3焊接或铆在固定圆杆上,活动刻度盘4套在活动杆6上(可自由活动),控制活动盘的螺环5与活动杆为螺纹联接,垂直刻度盘7位于活动杆顶端由(M2×10 GB65-76)螺钉9与螺母8固定。使用时,首先放松控制螺环,使活动刻度盘、固定刻度盘及垂直到度盘的0～180度线(零位线)平行,并使固定盘的盘面与工
The gun-eye angle indicator is designed to make the angle (horizontal or inclined) of the drill-hole to be explored in accordance with the requirements of the blasting instructions. The indicator has the advantages of simple structure, convenient manufacture, iron and aluminum materials, all the mines can be made by themselves, and the structure is as shown in the figure. The making method of the borehole indicator is that the fixed base 1 is welded with the fixed round bar 2, the fixed dial 3 is welded or riveted on the fixed round bar, the movable dial 4 is sheathed on the movable bar 6 (freely movable), the control movable disc Of the screw ring 5 and the movable rod for the threaded connection, the vertical dial 7 is located at the top of the movable rod by (M2 × 10 GB65-76) screw 9 and the nut 8 is fixed. When using, first loosen the control screw ring so that the movable dial, the fixed dial and the vertical line to the 0 ~ 180 degree line (zero line) parallel, and the fixed disk surface and the work