JAW CRUSHER Russian patent published in 1995 - IPC

FIELD: mining, building and other branches of industry. SUBSTANCE: jaw crusher comprises a bed 1, movable jaw 3, stationary jaw 2, spacer plate 5 and hydraulic system. The later s provided with a bank of hydraulic cylinders 6 communicating by the head end with a pressure relay, throttle, hydraulic seal, safety hydraulic valves and has a control line connected across a time relay with the crusher drive and loading mechanism. The rod end of the hydraulic cylinders communicates through hydraulic control valve with a hydraulic station. Besides, the hydraulic system comprises a hydraulic seal, hydraulic control valve with control lines connected directly to the pump, bank of hydraulic cylinders 6 and hydraulic station. EFFECT: improved design. 2 dwg