Parker-hannifin Corporation

Warn Industries, Inc.

Mark D Schuster

Roger Paul Gray

Oliver Heravi

Jason Scot Richardson

Randy C Karambelas

Richard C Hynes

Kirk Ayres Lola

Brook Cutshaw

Anthony J Wroblewski

Thomas J Larson

Alexander Milanese

Jim McBurnett

Ronald P Middendorf

A constant pulling force winch control system includes a sensor that senses a degree of winding of a winch cable around a winch drum, and a control system configured to control a winch motor to achieve a constant pulling force on the winch cable based on the degree of winding sensed by the sensor. The sensor may be a position sensor that measures a position of the winch cable relative to a centerline of the winch drum as the degree of winding. The position sensor may sense an angular position of a tension plate relative to a tensioner shaft to measure the degree of winding. The winch motor may be a hydraulic winch motor or an electric motor, and the control system is configured to control the power applied to the hydraulic winch motor to achieve the constant pulling force based on the degree of winding sensed by the sensor.

Constant pull winch controls

Hydraulic powered assembliesandare disclosed. The assemblyincludes a support unit, a hydraulic motor, and a driven memberthat is integral with the hydraulic motor. The hydraulic motorincludes a power groupthat includes six gerotor power units-. Each gerotor power unit-includes an inner rotorthat is fixed to a stationary through-shaftand an outer rotorthat is mounted for hypocycloidal movement relative to the inner rotor. The driven memberincludes segmentsthat support the outer rotorswithin the segments. The segmentscarry a winch cable receiving memberwhen the assemblyis used as a winch. The hydraulic powered assemblyis an alternative embodiment that includes two power groupsand. The power groupsandmay be symmetrical or asymmetrical.

Integrated hydraulic motor and winch

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Garfield, MN, United States of America

Mark D Schuster