IMPACT DEVICE Russian patent published in 2009 - IPC E21C37/00 

FIELD: mining.

SUBSTANCE: invention relates to devices for treatment of materials by impact action ensured by power of compressed gas and can be used, particularly in mining for destruction of geological material and milling of oversize. Device contains casing with internal cylinder, with installed in it piston with operating tool, source of compressed gas communicated to over-piston cylinder capacity, piston unit holding in initial position and by facility of damping. Into device it is introduced from two and more identical pistons with operating tool, located each in its working cylinder, and is outfitted by collector, located between source of compressed gas and over-piston volume of cylinders and communicated channel with source of compressed gas and channels with simultaneous discharge capacity with each over-piston volume, volume of collector chamber is selected from the condition of smooth feeding of gas to pistons. Additionally enabling of each piston is implemented ensured by opening of native closure systems, and number of units of keeping and facilities of damping corresponds amount of piston.

EFFECT: reliability enhancement of splitting of bulky extensive objects with forecasted direction of object destruction, providing of required effort necessary for split each particular object.

4 dwg