The working principle and operating procedures of the rock drill
Rock drill is a simple, light and economical tunneling machine, widely used in road construction, infrastructure construction, mining and other industries, and it is an important machine in stone block mining. Rock drills are impact equipment, and at the same time they need to be used together with oil, water and gas. On the one hand, this puts high requirements on the reliability and safety of the equipment; on the other hand, it also brings about the operation and maintenance of the equipment. Certainly difficult. The scientific use and maintenance of rock drills is not only of great significance for ensuring safe production and preventing the occurrence of malignant accidents, but also of improving equipment performance, working life and production efficiency.
Working principle of rock drill
Rock drill is a tool used to directly mine stone. It drills blastholes in the rock so that explosives can be put in to blast the rocks to complete the mining of stone or other stonework. In addition, the rock drill can also be used as a destroyer to break hard layers such as concrete. According to their power source, rock drills can be divided into four categories: pneumatic rock drills, internal combustion rock drills, electric rock drills and hydraulic rock drills.
The rock drill works according to the principle of impact crushing. When working, the piston makes high-frequency reciprocating motion, constantly impacting the shank. Under the action of the impact force, the sharp wedge-shaped drill bit crushes the rock and chisels into a certain depth, forming a dent. After the piston retracts, the drill rotates through a certain angle, the piston moves forward, and when it hits the drill tail again, a new dent is formed. The fan-shaped rock block between the two dents is sheared by the horizontal force generated on the drill bit. The piston continuously impacts the drill tail and continuously inputs compressed air or pressurized water from the center hole of the drill to discharge the slag out of the hole, forming a circular hole with a certain depth.
