Jaw crusher with a hydraulic cylinder overload arrangement

Details Jaw crusher with a hydraulic cylinder overload arrangement Jaw crusher with a hydraulic cylinder overload arrangement

2008-03-11

2008-03-11

Self, Shelley M. (Department: 3725)

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

C241S269000

Reexamination Certificate

active

07341213

ABSTRACT:
A jaw crusher (10) includes a fixed jaw (16) and a swing jaw (18), which define a crushing chamber (26). The swing jaw (18) is mounted for cyclic movement in the direction of the fixed jaw (16), for crushing material between the two jaws. A cross beam (42) is adjustably received in apertures (40) provided in the walls (12, 14) of the frame (11). A toggle plate (54) is operatively arranged between the rear of the swing jaw (18) and the front of the cross beam (42). An hydraulic cylinder arrangement (60) includes a pair of cylinders mounted one on either side of the frame (11) in a respective aperture (40), in operative engagement with the rear of the cross beam (42). In use, the cylinders are pressurised to a predetermined value to provide an adjustable, pre-loaded reaction against the toggle plate (54), in line with the side walls.

REFERENCES:
patent: 3946955 (1976-03-01), Bond
patent: 3984058 (1976-10-01), Archer et al.
patent: 4361289 (1982-11-01), Georget et al.
patent: 4749132 (1988-06-01), Hagiwara et al.
patent: 4927089 (1990-05-01), Altmayer
patent: 5725166 (1998-03-01), Nakayama et al.
patent: 5857630 (1999-01-01), Hamaguchi et al.
patent: 0433500 (1991-06-01), None
International Search Report dated Jul. 18, 2003.

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