JAW CRUSHER Russian patent published in 2016 - IPC B02C1/02 

FIELD: construction.

SUBSTANCE: group of inventions relates to jaw crusher. Fixed (5) and movable (3) jaws form variable crushing gap between them. Lever beam (13) has support for piston rod system (25). Lever plate (11) is located between lever beam and moving jaw. First support (15) of lever plate is located between lever plate and moving jaw. Second support (17) of lever plate is located between lever plate and lever beam. Positioning device (23) has movable piston rod system (25) for movable jaw positioning. Moving piston rod system is located on lever beam piston rod system support (21). Pressing device (35) contains compression element (37). Pressing device has first (39) and second (41) alignment elements to apply pressing force to lever plate supports and to support of piston rod system. First and second mounting elements are connected with moving jaw and moving piston rod system respectively. Lever plate pressing is performed by application of pressing force between movable jaw (3) and movable piston rod system (25).

EFFECT: providing lever plate retention in stable position, as well as elimination of dead travel between positioning device and lever beam.

10 cl, 4 dwg