The Development of HZCLQ120 Multifunctional Hydraulic Down-the-Hole Rock Drilling Rig
Hui Jun Wen, You Xin Luo, Heng Shu Li, Yu Cun Zhou · Advanced materials research · 2012
As drilling deep, large diameter, high drilling efficiency, adapting to a wide range of rocks, the down-the-hole drill is widely used currently as a large-scale rock drilling equipment. Integrated with the hydraulic rotary cutting pneumatic impacting drill and the down-the-hole hammer, the HZCLQ120 multifunctional hydraulic down-the-hole rock drilling rig was developed. The technical principle, main innovations, technical specification and test results were introduced. The new drilling rig can be widely used in rock blasting of railway, highway, water and electricity, mining, and urban construction.