Open AccessExperimental study of two-way hydraulic percussion device operation in vibro-impact drilling in rocks
Author(s) -
V.M. Kudryavtsev
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/773/1/012049
Subject(s) - percussion , throttle , piston (optics) , controller (irrigation) , drilling , mechanical engineering , volumetric flow rate , engineering , marine engineering , simulation , mechanics , acoustics , agronomy , physics , optics , wavefront , biology
The authors describe the physical model of a hydraulic percussion device with frequency adjustment using standard flow rate controller and impact energy adjustment using an original throttle control of flow distribution, which allows dragging the hammering piston before its back run. The operating cycle characteristics required for the analysis of this system dynamics are obtained in a series of tests. Recommendations on improvement of operation of the hydraulic percussion device are given.