The air leg rock drill is a highly efficient rock drilling machine. It is widely used in rock tunneling and drilling blastholes in various rock drilling operations. It is an important machine in stone works such as mining, railway, transportation and water conservancy construction.
The air leg rock drill pushes the piston to reciprocate by the compressed air. When the stroke is stroked, the piston hits the tail of the drill. When the return stroke, the piston drives the drill to rotate to realize the rock breaking and drilling. The replacement of the pneumatic air leg rock drill with the full hydraulic drill is an inevitable trend in the development of coal mine rock roadway. However, more than 90% of the rock roadway excavation construction is mainly based on air-leg rock drilling.
The air leg rock drill is a hand-held, semi-mechanized (manual operation, manual movement equipment) product with a large amount of surface. The operation and maintenance are convenient and the price is low, but the drilling speed is low, the operation noise is large, the number of people is large, the efficiency is low, the labor intensity is large, and accidents such as mechanical personal accidents and roof safety are prone to occur.
© Shandong China Coal Group. © 2016
Address:No. 11, North of Kaiyuan Road, High-tech Zone, Jining City, Shandong Province, China
Executive Editor: Linda Zhang