An electric winch crank having a main body which includes an electric motor; a gripping handle arranged at one end of the main body and able to pivot on same with respect to the main body; a coupling means to a winch, arranged at the opposite end of the main body; a transmission mechanism driven by the output shaft of the motor and enables rotation of the coupling means; a mechanical reducer interposed between the output shaft of the motor and the coupling means, the crank further comprising a braking system mounted on the output shaft of the motor; a control member located on the gripping handle for actuating the braking system via the electronic circuit and a rotating collector having a first portion rigidly attached to the gripping handle, connected to the control member, and a second portion rigidly attached to the main body and electrically connected to an electronic circuit.
Electric winch crank
Patent
Electronic Resource
Brake crank hydraulic driving system for drilling rig winch
European Patent Office | 2023
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