A load-bearing apparatus (100) comprises a winch apparatus (110), and a load-bearing spoolable medium (120) for connecting to a load, the load-bearing spoolable medium comprising a plurality of load-bearing elements (121-123); wherein at least a portion of the load-bearing spoolable medium is spooled about the winch apparatus. The provision of multiple load-bearing elements may help reduce the diameter appropriate for the winch apparatus, while maintaining the necessary load bearing capacity for supporting, paying in and/or paying out the load. The load-bearing apparatus may comprise a tension control apparatus (151-153) for controlling, applying and/or adjusting the tension of the load-bearing spoolable medium.

A hitch mount for a hoist including a main member having a proximal end and a distal end, the proximal end configured to couple with a vehicle hitch, a hoist mounting bracket at the distal end of the main member, a pulley mounted on the main member between the proximal end and the distal end, and a rope lock mounted on the main member between the pulley and the distal end.

A large-scale tool hoisting device for offshore electric power construction is provided. A steel cable retracted to winches is dried using the heat in the operating cabin, thereby preventing the steel cable from being in a wet state for a long time and being corroded by seawater. For different loads at the terminal of the steel cable, a transmission ratio between a drive wheel and a control wheel is changed through the sliding of the drive wheel. Without changing the rotational speed of the drive motor, the moving speed of the steel cable is effectively and correspondingly improved by reducing the pulling force of the steel cable, or a large pulling force can be provided for the steel cable by reducing the moving speed of the steel cable. The transmission ratio can be changed in the hoisting process.

A large-scale tool hoisting device for offshore electric power construction is provided. A steel cable retracted to winches is dried using the heat in the operating cabin, thereby preventing the steel cable from being in a wet state for a long time and being corroded by seawater. For different loads at the terminal of the steel cable, a transmission ratio between a drive wheel and a control wheel is changed through the sliding of the drive wheel. Without changing the rotational speed of the drive motor, the moving speed of the steel cable is effectively and correspondingly improved by reducing the pulling force of the steel cable, or a large pulling force can be provided for the steel cable by reducing the moving speed of the steel cable. The transmission ratio can be changed in the hoisting process.

The invention relates to a winch automation device comprising: a motor (12) intended to engage a capstan drum (2) of the winch; a supervision member (15) of the motor able to fix the torque applied by the motor to the capstan drum (2); a memory (22) integrating a set of pre-recorded manoeuvres (29, 32, 33), each manoeuvre being associated with at least one limit force (30, 31); means (28) for measuring the force engaged on the winch; and a human-machine interface (26a), connected to the supervision member, and comprising: motor-actuation means (35-37); manoeuvre selection means (34); and at least one display (27) able to convey to a user of the winch information regarding the force engaged on the winch and information regarding the expected limit force for the selected manoeuvre.