Evaluation of Layout of Air Drill Hammer with Smooth Adjustment of Impact Impulse Frequency
I. V. TISHCHENKO, V. V. CHERVOV, B. N. SMOLYANITSKY
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: пневмомолот, упругий клапан, дренажный канал, частота ударов, энергия ударного импульса, плавная регулировка, air drill hammer, elastic valve, drainage line, blow frequency, impact impulse, smooth adjustment
Abstract
Design of an air drill hammer with the smooth adjustment of the percussion frequency at the constant blow energy is considered. The proposed and analyzed versions of air distribution system are based on using a mechanically closing elastic valve. The test data on experimental prototypes of the air drill hammer with the external distributing elements that set blow frequency are presented. The frequency adjustment ranges are determined.
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