FIELD: mining.
SUBSTANCE: invention relates to jaw crushers and may be used in mining and construction industries. Jaw crusher comprises bed, fixed and movable jaws, flywheel, moving jaw suspension axis in its lower part, supporting by bearings on bed side walls, eccentric shaft, crank rod, spacer plates, V-belt drive, electric motor, hinged joints spacer plates connection with crank rod, bed and moving jaw. At that, fixed and moving jaws are bent in lower part at angle of 150° towards fixed jaw, and eccentric shaft cam is increased to value, providing at each cycle of crank rod motion up and down double reduction of angle between spacer plates to 180° with continuation of its movement further to both sides on 9-10°.
EFFECT: jaw crusher allows twice increase quantity of crushing movements of movable jaw, crusher performance.
1 cl, 1 dwg
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