In industrial and mining production, jaw crusher is the most common preliminary crushing equipment.It simulates animal jaw movement, crushing materials through the movements of moving jaw plate and fixed jaw plate.
Jaw crusher is mainly composed of fixed jaw plate, movable jaw plate, rack,top and bottom guard plates ,adjusting seat, moving jaw rod and other components . Working portion contains two jaw plates,one fixed jaw plate,which fixed vertically (or the upper slightly slanted upward ) in the front wall of the machine , and the other is a tilted movable jaw plate (moving jaw),forming a crushing chamber which has big top and small bottom . the next big small (working chamber) and the fixed jaw.
When jaw crusher works ,only half cycle for crushing , the other half cycle is used for discharging . Jaw crusher crushes the material through the cyclical movement of the movable jaw, crushing mode is to drive extruded type ,the belt and pulley is driven by a motor-drive , through the role of the eccentric shaft,make the movable jaw do stationary reciprocating motion . When the moving jaw rises, the angle between toggle plate and moving jaw becomes large, pushing moving jaw plate close to the fixed jaw plate , so that the volume of material becomes narrow and close to each other and then squeeze and grind tightly , cause multiple crushing such as extrusion, rolling, grinding.
