Development and Experimental Research of ZYW-4000 G High-speed Drilling Machine
XIN Dezhong
Abstract：In order to improve the drilling efficiency in hard stratum in coal mines and solve the technical problem of borehole drilling in hard stratum, Model ZYW-4000G high-speed drilling machine was developed, which has the features of high drilling speed, large output torque, strong drilling ability and so on. This paper described the overall structure of this drilling machine and its key technologies, including the double-motor power head driving system, the hydraulic system and the adjusting system for the drilling posture. The drilling tests both in the hard stratum and coal seam indicated that this drilling machine was rational in structure and easy to operate and had a little heating. When this drilling machine is used with the relevant drilling tools to drill holes in the hard stratum and coal seam, its drilling efficiency is much higher than that of the ordinary drilling machines.
Keywords：high rotation ratehard rockdiamond drillingdrilling machine
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 27-30 )