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近十年来,意大利大理石矿山开采技术有了较大的发展,现简介如下:一、大荒料的切割与分离在大理石矿山开采技术中,具有重要意义的新型工具是蒙的科罗(Mont colo)钻孔切割机。这种机器有双重作用,一是代做切割滑轮的支柱,二是用以在所开采的大石块各个方向上钻孔。该机由两根钢杆构成,这两根钢杆由支架和套管联在一起。其中一根(名叫鱼叉式)是固定的,其作用是在岩石上固定住全部机器,另一根是活动的,可做上下和旋转运动,起钻杆作用。运动的钢丝绳带动该机上的飞轮,飞轮又通过齿轮带动钻杆旋转,用手柄推动无限螺丝,使螺丝在固定钢杆上的齿条上转动,从而使钻杆上下运动。在鱼叉式钢杆顶端安有导向滑
The past 10 years, the Italian marble mining technology has made great development, are summarized as follows: First, the large block material cutting and separation In the marble mining technology, a new tool of great significance is Mont Colo (Mont colo) Drilling and cutting machine. This machine has a dual role, one is to do the cutting of the pulley props, and the other is used to drill in all directions in the mining of large stones. The machine consists of two steel rods, the two steel rod by the bracket and casing together. One of them (called a spear) is fixed, its role is to fix all the machinery on the rock, and the other one is active, up and down and can rotate, play the role of drill pipe. The moving steel wire rope drives the flywheel on the aircraft. The flywheel drives the drill rod to rotate through the gear. The infinite screw is pushed by the handle and the screw is rotated on the rack on the fixed steel rod to make the drill rod to move up and down. There is a guide slip on the top of the harpoon rod