Cone crusher bowl adjustment mechanism

Details Cone crusher bowl adjustment mechanism Cone crusher bowl adjustment mechanism

2006-01-03

2006-01-03

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Processes

Miscellaneous

C241S207000, C241S286000

Reexamination Certificate

active

06981665

ABSTRACT:
A rock crusher includes a bowl coupled to a frame and a head assembly coupled to the frame defining a crushing gap between the head assembly and the bowl. The rock crusher further includes a number of fixed displacement hydraulic motors adapted to rotate the bowl with respect to the frame and a hydraulic fluid source providing a flow rate of hydraulic fluid to the hydraulic motors. A hydraulic control valve is adapted to remove one of the hydraulic motors from operation, directing the hydraulic fluid to the remaining hydraulic motors. The flow rate of hydraulic fluid remains unchanged, thereby increasing the hydraulic fluid flow rate provided to and the speed of the remaining hydraulic motors.

REFERENCES:
patent: 3666188 (1972-05-01), Lippmann
patent: 4717084 (1988-01-01), Vendelin et al.
patent: 6513738 (2003-02-01), Braun et al.
Nordberg, “HP Series Cone Crusher Instruction Manual-Hydraulic Supplement”.
Nordberg, “Omnicone Crushers”, 1993 Nordberg Inc.
Nordberg, “Omnicone Crushers”, 1988 Norberg Inc.

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