FIELD: mining engineering.
SUBSTANCE: jaw crusher includes housing with a stationary jaw, a movable jaw with a lower axis of its swings. In the upper part of the housing there is a swing drive of the movable jaw. On the back of the stationary jaw there is a plate parallel to it. The plate is fitted with strikers. The strikers pass through holes made in the stationary jaw. Each of the strikers has its own drive. The drive provides an impulse-percussion movement of the striker. The drive contains a mechanism for switching on and off depending on the position of the striker relative to the stationary jaw.
EFFECT: crushing performance is increased.
4 dwg
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