凿岩机的缸体,中间部分磨损较多,两头磨损较少。通常,用内圆磨床来将它修复,使气缸前后的直径保持一致。然后,配以稍大的活塞,或将原活塞镀铬,便可继续使用。但是,一般矿山的凿岩机修理点是没有内圆磨床的。我们创造了一种简易的研磨工具(附图),可以代替内圆磨床来修复缶体,已使52台报废的凿岩机修复后重新投入生产。该工具是利用凿岩机导向套和活塞之间, Drill cylinder, the middle part of the more wear and tear less wear on both ends. Normally, it is repaired with an internal grinder to keep the cylinder front and back in the same diameter. Then, with a slightly larger piston, or the original piston chrome, you can continue to use. However, the general mining drill point is no internal grinding machine. We created a simple grinding tool (with photos) that could replace the internal grinder to repair the body, which had repaired 52 scrap rock drills and put them back into production. The tool is the use of rock drill between the guide sleeve and the piston,