FIELD: mining and construction industries. SUBSTANCE: invention refers to devices for perforation of holes in rock mass and in man-made formations. Gear includes body with working and auxiliary chambers with mechanism of periodic pulse effusion of compressed air, pick anchored in head part of body. Working and auxiliary chambers are separated by differential control valve mounted for periodic shutting of exhaust holes of working chamber which are directed at angle of 90 degrees relative to longitudinal axis of body. EFFECT: increased rate of perforation of holes in rock mass under action of reactive force of high-pressure compressed air running out of mechanism of periodic pulse effusion, provision for uninterrupted process of action on rock mass. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR MAKING HOLES IN SOLID MASS | 2001 |
|
RU2191236C2 |
| DEVICE FOR PUNCHING OF HOLES IN HARD ROCKS | 2001 |
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| PNEUMATIC CARTRIDGE | 2001 |
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| LOCALISATION DEVICE OF EXPLOSIONS OF METHANE-AIR MIXTURE AND (OR) PULVIRISED COAL | 2010 |
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|
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| PNEUMATIC CARTRIDGE | 0 |
|
SU1802117A1 |
| GAS DYNAMIC CARTRIDGE | 0 |
|
SU1809049A1 |
| PNEUMATIC CARTRIDGE | 0 |
|
SU1802116A1 |
