STONE-SPLITTING MACHINE Russian patent published in 1994 - IPC

FIELD: stone-producing industry. SUBSTANCE: machine for splitting stone and dividing it into blocks in quarries comprises revolving platform 1 mounted on crawler or wheeled chassis with hydraulic jack , cab with control console, body 4 with compressor (or trailer-mounted compressor) and receiver 5, and hydraulic pumping station 6. Fixed boom 7 installed above cab incorporates hydraulic cylinder for lifting and lowering of movable boom 9 which is connected to boom 7 by joint 10. Upper boom 9 has telescopically built-in support carriage 11 with rollers moving over guides of upper boom 9. Support carriage 11 is articulated to rod of hydraulic cylinder 12 which moves support carriage 11 while casing of hydraulic cylinder 12 is articulated to end axle of boom 9. Secured pivotally to support carriage 11 is the casing of hydraulic cylinder 13 whose rod is also pivotally connected with crosspiece 14 secured to body of pulsating air striker 15 for extending and adjusting setting angle of said striker which incorporates damper 16 for suppressing the striker recoil force. Lower part of upper boom 9 is provided with tubular guides 18 from which articulated hanger 19 is suspended on rollers. Said hanger is moved longitudinally by telescopic hydraulic cylinder 20. Telescopic hydraulic cylinder 21 with hydraulic grips is suspended from lugs of articulated hanger 19 . Said grips are brought together by hydraulic cylinders 23 whose rods are articulated with body lugs while their casings are articulated with casing lugs of hydraulic cylinder 21 provided for lifting and lowering hydraulic grips. Said cylinder 21 is, in turn, articulated with the lug of supporting articulated hanger 19. EFFECT: improved design. 4 dwg