CS231664B1 - Auxiliary device for cable cranes - Google Patents

Abstract

The invention solves the problem of minimizing the dead space under a rope crane. The rope (4) is guided from the drum (7) by transfer pulleys (18) and pulleys of the suspension block (5). Between the drum there is a horizontal guide track (10) for the sliding carriage (14) with a separate drive (15) and with catch pulleys (9). Above the horizontal guide track (1OJ the rope (4) is guided by guide pulleys (6), guide pulleys (17) and stabilizing pulleys (8) placed above each other.

Description

HAVLAS STANISLAV IQg ·, CHOMUTOV

Attachments of rope cranes

The invention solves the minimization of the deaf space under the rope crane. The rope (4) is guided from the drum (7) by the transfer rollers (18) and the pulley blocks (5). A horizontal guide track (10) for the sliding carriage (14) with a separate drive (15) and with picking rollers (9) is located between the damper. Above the horizontal guide track (10J), the rope (4) is guided by superimposed guide rollers (6), guide rollers (17) and stabilizer rollers (8).

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The invention relates to an additional device of rope cranes which solves the length of the stopway.

Rope cranes in which the load handling device is outfitted by the cat have, after reaching the bumpers, have limited travel range of the lifting device on both sides, the size of which is determined by the design of the cat. This limitation adversely affects the handling space, so that the crane runway contradiction over its entire length is not utilized. There are oblique strokes with side effects. Existing rope cranes do not address the minimization of the range of the suspension equipment.

These drawbacks are overcome by an additional device of rope cranes in which the rope is guided from the drum by the transfer pulleys and pulley blocks of the invention. SUMMARY OF THE INVENTION A horizontal guide track with a self-propelled sliding carriage, on which the deflection rollers are mounted, is arranged between the transfer pulleys and the pulley pulleys, with the stabilizing pulleys, guide pulleys and the rollers arranged above one another for the rope. guide rollers.

An advantage of the rope crane accessory according to the invention is that it allows to minimize the travel range of the hitch and thus to eliminate deaf spaces, while respecting the applicable crane standards. The existing range of the hitch to a distance of 2 m from the face of the crane tower columns has been shortened to 0.5 m, which results in efficient use of storage areas and areas. The design of the attachment depends on the design of the cats, which are used more types, with regard to the strength calculations. With regard to the fact that the nominal capacity of the rope cranes is largely used during handling, the function of the attachment can be dimensioned and operated at a lower capacity than the nominal capacity of the rope cranes. The design of the additional device according to the invention positively influences the design of the cat's designs, where the dimensions of the cat's own will not have to be reduced to the same extent as before. 231 884

The attached drawing shows a diagram of an additional device according to the invention, wherein in Fig. 1 is a front view and Fig. 2 is a side view of the same device.

On the supporting structure of the trolley 2, a lower part 7 is suspended, which moves together with the trolley 2 between the bridges 2 of the rope crane. The rope X is guided from the drum J of the cat 2 by the guide rollers 8 through the guide rollers 17 and the stabilizing rollers 8 to the lower part in which the horizontal guide track 10 is disposed. The deflection pulleys for the rope 4 are brought from the stabilizing pulleys 8 and are guided below the lower part 1 where the suspension pulley 2 is suspended from it. in the lower part 1 and further with the stabilizing pulleys 8 and the transfer pulleys 18 for firmly fixing the rope end χ. The horizontal guide track 10 has both a lower and an upper guide 11, the upper guide 11 being alternatively omitted. * end positions of the pulley block 2, the cat 2 is supported by the bumpers 12 against the stops on the edges of the 2 crane tracks. The spacing of the suspension block 2 of the row of columns 13 of the crane track is minimal.

The rope carrying the suspension pulley 2 is guided in a pair of guide pulleys 6 moving along the drum J and deflecting la 'no X, and by a pair of guide pulleys 11 occupying a fixed position in space and therefore its path can be rectified in fixed bearing pulleys 8 and further χ cable run between the diverting pulleys 2 on the sliding carriage 14. the deflection pulley 2 P ^ i assume the largest displacement to the right extreme right position, and thus deflection of suspension blocks 2 ⁰ largest mean value from the unloaded position and opacity when swinging to the left. The sum of the greatest deflection on both sides indicates the overall increase in the travel range of the suspension block 2 compared to the existing types of cats. In the present case, the pulling device of the carriage 14 is formed by an electric motor 15 and an endless chain 1.6. Depending on the type of the cat, the 2lz® suspension pulley can be deflected by electric motors with gear and brake mechanisms carried on the carriage 14 or on the carriage structure 2 by forcibly moving the carriage 14 on the rack or pull chains or hydraulic cylinders. The height of the attachment is controlled from the cab of the crane operator.

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Claims (1)

BACKGROUND OF THE INVENTION A cable crane apparatus in which a rope is guided from a drum by transfer pulleys and suspension pulley pulleys, characterized in that a horizontal guide track (10) is located between the transfer pulleys (18) and the suspension key pulleys (5). ) with a sliding carriage (14) provided with a separate drive (15) and deflection rollers (9), wherein above the horizontal guide track (10) the cable (4) is guided by guide rollers (6), guide rollers (17) and the stabilizing rollers (8). 1 drawing