RU2007119356A - DOUBLE CRUSHING JACK CRUSHER - Google Patents

Claims (2)

1. A jaw crusher having a bed, a flywheel, movable and fixed crushing cheeks, an axis of articulated suspension of the movable cheek, supported by bearings on the side walls of the bed, an eccentric drive, a connecting rod, V-belt drive, and parts for attaching the connecting rod to the movable cheek and connecting rod, characterized in that the movable cheek has a suspension point in the lower half of the bed at a height equal to 1/3 of its full length and at the suspension point both cheeks have a bend with respect to the central axes of the cheeks, directed towards the installation of the fixed cheek, so that in the process The movement of the movable cheek creates the upper and lower crushing chambers, in which the crushing of the material occurs alternately, then in the upper chamber - large crushing, then in the lower chamber - small crushing, excluding idling. 2. Jaw crusher according to claim 1, characterized in that the movable cheek has a recess on the inner surface opposite the point of its suspension, which increases the distance between the cheeks in the transition zone of the crushed material from the upper chamber to the lower.