Study On The Key Technology Of The Hydraulic Tapping Machine Of Blast-furnace

The choke point of full-hydraulic tapping machine is the hydraulic drilling machine. The hydraulic drilling machines of domestic large blast-furnace is mostly import from German, although their capability is excellent, but they' re expensive, and their spare parts are costly. So the study on the key technology of the hydraulic drilling machine of blast-furnace is of great significance.Through contrast the disfigurement of drilling machine, this paper introduced the principle and theory of design of the drilling machine, optimized the configuration and dimension, test the material and heat treatment of the key parts, the best capability was achieved at last.This paper was a summary of scientific research of domestic tapping machine of No.4 blast-furnace, at the same time expound the theory of hydraulic impactor, introduced the testing method of drilling machine. This paper can offer references to those who work in the design department or academe of tapping machine.