EXPERIMENTAL STUDY OF THE OPERATION MODES OF TWO-WAY HYDRAULIC PERCUSSION DEVICE PRODUCING VIBRO-IMPACT ON ROCK MASS
L. V. Gorodilov, V. G. Kudryavtsev
Chinakal Institute of Mining, Siberian Branch Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Гидроударная система, давление задержки, расход, частота, предударная скорость, распределитель, Hydraulic percussion system, pressure of delay phase, frequency, pre-impact speed, distributor
Abstract
A physical model of a hydraulic percussion device is presented, in which the frequency is regulated by a standard flow rate controller, and impact energy - by an original distributor with throttle control, which allows delaying the striker before the start of the reverse phase. A series of experiments is conducted with recording of the characteristics of the work cycles required for the analysis of the system dynamics. Recommendations for possible improvements of the hydraulic percussion device performance are given.
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