Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia



Advanced Search

Fundamental and applied issues of mining

2020 year, number 2

EXPERIMENTAL STUDY OF PNEUMOPERCUSSION MECHANISM WITH THREE PNEUMATIC CHAMBERS

Yu. V. Vanag1,2
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk State Technical University, Novosibirsk, Russia
Keywords: Confined space, controllable chamber, pneumatic impact mechanism, impact frequency, impact energy

Abstract

The problems of preserving the performance of pneumopercussion devices while reducing their weight and dimensions for carrying out construction works in a confined space are considered. The results of calculating the dynamics of two variants of percussion devices with two and three pneumatic chambers are presented. It is shown that with the same radial dimensions and threshold impact energy of devices under study, the reserve of increasing the impact power is increasing the impact frequency due to multiple pneumatic chambers.