Reduction gear and speed control for dredge pumps

Details Reduction gear and speed control for dredge pumps Reduction gear and speed control for dredge pumps

1979-12-21

1982-01-19

Krizmanich, George H.

Machine element or mechanism

Elements

Gear casings

74752C, 74752E, F16H 4704

Patent

active

043110665

ABSTRACT:
A high-speed drive shaft is connected to dredge pump shaft by a planetary gear, upon which a controlled speed is superposed, by branching power off the high-speed shaft for driving an auxiliary adjustable pump which, in turn, runs a hydrostatic motor whose rotary output is connected to the ring gear of the planetary gear via a transmission which includes two brakes and a speed-responsive clutch; one brake is also speed-responsive, the other one is responsive to motor pressure, to provide a possibly redundant system for preventing torque transmission to the motor, e.g., in case of dredge pump blockage.

REFERENCES:
patent: 3427899 (1969-02-01), Gunderson et al.
patent: 3714846 (1973-02-01), Louis et al.
patent: 3744344 (1973-07-01), Olsen et al.
patent: 3796111 (1974-03-01), Schauer
patent: 3969958 (1976-07-01), Miyao et al.
patent: 4019404 (1977-04-01), Schauer

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