The feasibility of combining vibration process with bit drilling is discussed. The vibropercussion drilling charts are developed. Conventional drilling coupled with vibropercussion effect of indenters provides predestruction of bottomhole rocks. The proposed chart of two-circuit vibroprocess ensures multiple amplification of impact owing to hydraulic booster and hydraulic accumulator. The system is operated by rotating piston which supports frequency and duration of impacts, as well as sequence of actuation of indenters. The control chip ensures hands-off operation and selection of vibro-drilling parameters versus specific conditions of bottomhole. The sleeve (piston) is geared by stepper micro-motor operating at the speed consistent with frequency of indenter. The impact force is supported by the amplitude adjustment by the motor operation in the smooth or pulsed step mode. The drill assembly has a charging device. The system can operate in hands-off and manual mode. The unattended operation control consists in optimization of variables: frequency, amplitude, additional static load in the form of a drilling sting, impact force and bit rotation frequency.

For citation: Pelipenko N. A., Ignatenko I. M. Vibropercussion polyindenter drilling assembly. MIAB. Mining Inf. Anal. Bull. 2019;(9):195-203. [In Russ]. DOI: 10.25018/0236-1493-2019-09-0-195-203.



Vibropercussion drilling, amplitude, frequency, impact force, hands-off model, pistonindenter, hydraulic booster, hydraulic accumulator, model control switches, indenter actuation sequence, control chip.

Issue number: 9
Year: 2019
ISBN: 0236-1493
UDK: 622.24.051.49
DOI: 10.25018/0236-1493-2019-09-0-195-203
Authors: Pelipenko N. A., Ignatenko I. M.

About authors: N.A. Pelipenko, Dr. Sci. (Eng.), Professor, e-mail:, I.M. Ignatenko, Cand. Sci. (Eng.), Director, Institute of Earth Sciences, e-mail:, Belgorod State National Research University, 308015, Belgorod, Russia. Corresponding author: N.A. Pelipenko, e-mail:


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