Pneumatic rock drill support method Pneumatic rock drill manufacturer

1. Product introduction of pneumatic rock drill
It is an impact drilling machine powered by compressed air. According to the propulsion mode, it is divided into hand-held rock drills, air leg rock drills, telescopic upward rock drills and guide rail rock drills.
2. Product classification of pneumatic rock drills
The common classification in engineering is based on the support method of rock drills.
Hand-held rock drill This type of rock drill is light in weight, generally below 100cm, and can be operated by holding it by hand during work. Various small diameter and shallow blast holes can be drilled. Generally, only downward holes and nearly horizontal holes are drilled. Because it relies on manual operation, has high labor intensity, small impact energy and torque, and slow rock drilling speed, it is rarely used in underground mines now. Rock drills belonging to this category include models such as , , and so on.
Steam leg rock drill This type of rock drill is installed on the gas leg for operation. The gas leg can play a supporting and propulsive role, which reduces the labor intensity of the operator. The rock drilling efficiency is higher than the former, and the drilling depth can be ), diameter) horizontal or with a certain inclination angle, widely used in mines. Models such as,,,, etc. all belong to this type of rock drill.
Upward-facing (telescopic) rock drill. The air legs of this type of rock drill are on the same longitudinal axis as the main machine and are connected into one body. Therefore, they are also called telescopic rock drills and are specially used for drilling.
). The upward blast hole is mainly used for rock drilling operations in stopes and patios. The general weight is about 100, and the drilling depth is about 100%, and the hole diameter is about 100%. Type rock drill belongs to this category.
Guide rail rock drill This type of rock drill has a heavy machine weight (generally 100 kg) and is generally installed on the guide rail of a rock drilling rig or column frame, so it is called a guide rail type. It can drill blast holes horizontally and in all directions. The hole diameter is generally above the hole depth, and the deepest can be reached. ,,, and other models belong to this category.
3. Working principle of pneumatic rock drill
When the rock drill is working, the air pressure alternately enters the rear chamber and front chamber of the cylinder, pushing the piston to move back and forth. Similarly, the compressed air also acts on the rear cover or front cover of the cylinder, causing the rock drill to move backward or forward. Therefore, the rock drill vibrates and generates drilling force.
4. Machine composition of pneumatic rock drill
Pneumatic rock drill mainly consists of cylinder piston assembly, gas distribution device, drill rotary mechanism, control valve and flushing and blowing mechanism. Pneumatic rock drills are supported by human hands during operation. They are called hand-held rock drills. Those that use pneumatic legs are called air-leg rock drills. Those that use pneumatic column guide rails are called column guide rail rock drills. There are also rock drills with a frame. A rock drilling rig equipped with one or more rock drills is called a rock drilling rig.