METHOD OF REPLACING LIFTING CRANE CABLE Russian patent published in 2016 - IPC B66C17/00 B66B7/06 

FIELD: machine building.

SUBSTANCE: invention relates to methods of replacing lifting crane cable and can be used when exploitation of various types of cranes. Crane block suspension is lowered on prepared repair support to allow free rotation of movable tackle blocks. Winch drum fasteners holding one part of the cable are removed to throw said part down. Lifting mechanism is used to wind worn-out cable on winch drum so that dropped loose end does not enter the block suspension. Cable ends are interconnected to proceed with winding connected cables, providing rotation of the coil, in which there is a new cable, around its axis, passing new cable through the preset path. Lifted part of line of the new cable is secured by safety halyard, connection of cables is broken to remove worn-out cable clamps from the drum to throw it down. Part of the new cable, left in the coil is unwinded and the cable is simultaneously directed aside by placing on the working site. Process halyard attached to a truck is lowered down from said truck, connected to the second end of the new cable and lifted to cargo truck. Both ends of the new cable are fixed on the winch drum, safety and process halyards are removed and lifting mechanism is used to wind the new cable on winch drum.

EFFECT: reduced labor input is achieved.

4 cl, 2 dwg