FIELD: process engineering.
SUBSTANCE: proposed jar crusher is intended for crushing of initial material in mining and construction. This crusher comprises bed (7), fixed jaw (1) and moving jaw (2), moving jaw suspension hinge pin (14), spacer boards (5) and (6), con-rod (3), hinges between con-rod and spacer boards, flywheel (4), camshaft (8), V-belt transmission (13) and motor (12). Moving jaw has recess (15). Jaws are bent at lower part at 145° towards fixed jaw. Hinge pin at lower part thrusts by bearings against bed side walls. Spacer boards are fitted on con-rod at its top part by vortex of spacing angle directed upward. At con-rod downward travel impact if developed by the weight of spacer boards, con-rod and extra weight (19).
EFFECT: higher efficiency of crushing of super hard and abrasive materials without increase in motor output.
1 dwg
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