Original title: Types and models of rock drills In infrastructure construction, mine excavation and other construction sites, there is a basic process-drilling. Before the Industrial Revolution, people used to cut a hole in the rock by hand with a chisel. Now, with the development of science and technology, we have rock drills, which greatly improve the efficiency of work. Rock drill is commonly used in daily mining, rock splitting and other drilling tools. It drills holes in the rock stratum, and then puts explosives to blast the rock, so as to complete the mining of stone or other stone projects. I. Type and model of rock drill There are many different classifications of rock drills, and different rock drills have different application scenarios, so I have made a summary of the classification of rock drills. Let’s take a look. (1) According to the different operation modes, it can be divided into hand-held rock drill, air-leg rock drill and upward rock drill. ① Hand-held rock drill uses compressed air as power to drill holes, commonly known as pneumatic drill. The weight is light, generally below 25 25, rock drilling tools , and small diameter and relatively shallow holes can be drilled. But now it is seldom used in underground mines, because it needs to be operated by manpower, the impact energy is small, and the drilling speed is relatively slow. Handheld rock drills are mainly y3, y26 and other models. (2) The air-leg rock drill works against the rock drill by the air leg, which plays the role of support and propulsion, reduces the labor intensity of the operator, and has higher drilling efficiency than the hand-held rock drill, so it is widely used in mining operations. Expand the full text Air-leg rock drills are mainly yt23, yt24, yt25, yt28, ytp26 and other models. (3) The upward rock drill is also called telescopic upward rock drill. The air leg of this kind of rock drill is connects mainly used in construction sites without power and gas sources. There are mainly two types of internal combustion rock drills: YN27C and YN27. (2) The hydraulic rock drill uses high-pressure oil as the power to drive the piston to impact the drill, with an independent rotary mechanism, the piston is controlled by the valve to reciprocate,overburden drilling systems, and the drilling speed is more than twice as high as that of the pneumatic rock drill. Hydraulic rock drill is commonly used yyt28 full hydraulic rock drill. ③ Pneumatic rock drill is an impact drilling machine powered by compressed air, which can be divided into hand-held rock drill, air-leg rock drill and telescopic upward rock drill according to the propulsion mode. Return to Sohu to see more Responsible Editor:. wt-dthtools.com
Type and model of rock
