Device and method for winding and unwinding a parallel wire strand horizontally

A device for horizontally winding and unwinding cable strand comprising:

• a guiding device (1) of cable strand (10) for guiding a cable strand moving up and down during winding operation;
• a cable strand winding and unwinding device (4) for winding or unwinding the cable strand as a cable strand roll;
• a rotating platform device (2) for supporting and rotating the cable strand winding and unwinding device (4) in unwinding operation;
• a rail wagon (3) for supporting and moving the cable strand winding and unwinding device (4) in winding operation,
• a tray (5) for containing cable strand roll thereon and able to lift both the tray and the cable strand roll;
• a controlling device for controlling actions of the guiding device, the cable strand winding and unwinding device;
• the guiding device (1) comprises:
• a guide frame (11) constituted by a base (111) and a supporting frame (112), an electric cable hoist (13) fit on the base (111), a fixed pulley (14) mounted at a top of the supporting frame (112), a lifting appliance (12) includes a crane (16) and a strand transfer control mechanism set in the crane, the crane (16) is pulled by said electric cable hoist (13), a wire rope (15) which connects from said electric cable hoist (13) to the top surface of said crane (16) bypass around said fixed pulley (14), the strand transfer control mechanism includes three rollers (17) and a spacing wheel (19), connecting three centers of the three rollers (17) becomes a triangle;
• the rotating platform device (2) located a side of the guiding device (1) comprises:
• an under-chassis, a turning axle (21) fixed to a centre of the under-chassis, a platform (22) set on the turning axle (21) and supported by revolving wheels (25), platform rails (23) laid on the platform (22) and connected to an external rail outside the platform;
• the rail wagon (3) comprising:
• wheels and a bedplate on the wheel through a supporting frame, the rail wagon (3) is on the platform rail (23) in order to remove a roll of wrapped cable strand from the rotating platform device (2);
• the cable strand winding and unwinding device (4) comprises:
• four pieces of bracing plate (41), there is a gap clearance between two adjacent bracing plates (41), four pair of top drawbars (42), each bracing plate (41) has two drawbars (42) which are located severally on a top of the bracing plate (41), in winding operation, bottoms of the bracing plates (41) provided with the drawbars are turnablely hinged with the bedplate of the rail wagon (3) by bolts, or in unwinding operation, bottoms of the bracing plates (41) provided with the drawbars are turnablely hinged with the platform (22) of the rotating platform device (2) by bolts;
• the tray (5) comprises:
• a circular ring sitting on the bedplate of the rail wagon (3), edge of the tray (5) has lifting points;
• and
• the controlling device comprises:
• a pressure sensor (181), a velocity measurement encoder (182) and an altitude measurement encoder (183), wherein the pressure sensor (181) and the velocity measurement encoder (182) are set at one side of roller (17);
• the altitude measurement encoder (183) is set at one side of fixed pulley (14);
• a programmable controller, which is used for linking and controlling the pressure sensor (181), the velocity measurement encoder (182), the altitude measurement encoder (183) and for hauling the wire rope (15) to pull up the crane (16), when the cable strand (10) being enlaced upwards in every turn, the programmable controller controls the electric cable hoist (13) to pull the crane (16) up to move along the guide frame (11) upwards a distance which is equal to a diameter of the cable strand (10), when the cable strand (10) being enlaced downwards in every turn, the programmable controller controls the electric cable hoist (13) to pull the crane (16) down to move along the guide framer (11) downwards a distance which is equal to diameter of the cable strand (10).