SU91221A2 - Construction Hoist - Google Patents

Description

Basically auth. St. L 71540 describes a construction elevator, the lifting and lowering carriage of which is equipped with a retractable monorail and a crane truck moving along it, moving simultaneously.

In the described hoist, in order to increase its operational performance, the retractable monorail and the crane truck, not essential for it, move consequently, which is achieved by using a common endless haul rope and mounting the running wheels on bearings with different friction coefficients: the running wheels of the crane truck on rolling bearings, monorail wheels — on sliding bearings.

By using a datap device, a more convenient loading process is achieved, since, by moving the trolley, it is possible to see the load lying in any position below the monorail; the possibility after gripping loads and starting lifting load the load to the center of the carriage (under the load hook), which forces the tension of the ropes caused by the load on the load and, consequently, reduces their wear; the engine power of the traveling mechanism is reduced, since the resistance to movement of the monorail and crane truck is overcome consequently.

FIG. 1 shows the facade of the carriage of the described lift: FIG. 2-scheme zasasovk t tgo rope; in fig. 3-scheme of the extension of the monorail and crane truck.

To the frame of the carriage 1 of the elevator prt | kreg le1ta frameworks 2 with rollers 3 for moving the retractable powertrain 4, which consists of two two-level beams. Going Pizh1T to the sticks of the monorail beam is moved by the crane and the cart ;; 5. to which: cargo is. The carriage 1 moves along the path 1LA 0C 1m to the ropes 6 groups of cables 7.

The movement mechanism of the monorail and crane trolley incorporates a drum 8. electric winch or hoist, on which several turns of rope 9 are wound, the ends of which go successively but deflecting blocks 10 fixed on the frame of the carriage 1, then bend around 4 blocks horizontally fixed on the ends of the monorail 11 and descend but protrude U1Sweet vertical blocks 12 to the crane calf 5, where they are fastened to a double-sided strap 13 fixed on the cheeks of the trolley with the aid of the bolt 14.

Driving wheels 15 of the crane truck 5 are planted on the underside of the hacheni. and the running wheels 3 of the cage 2 on the sliding surfaces. Blocks 10, 11, 12 are mounted on rolling bearings.

The mechanism works in the following way: since the resistance of the monorail reposition is always greater than that of the crane trolley 5, iipn the rotation of the drum 8 of the crane trolley 5 moves along the monorail, which remains 5 without movement until then. until the trolley does not pack 1 stsi 1 end of the monorail, for example, at point B, after which it begins to move, ii the same nairaleppi and monorail, together with the trolley, D1 and the clamps 1 with the branch of the rope 9.

You; 1t the crane truck and is located in the following nose-barter: guests: I-nodёm cargo nrn crane truck installed iodine carriage; P i Til — the beginning and the end of the extension of the monorail with the crane body; to; o in the opening of the building; IV-reverse movement of the crane truck; V-beginning of the monorail extension from the opening; VI-end of the monorail extension.

. A lift for construction work according to the certificate .N 71540, characterized in that, in order to ensure the subsequent displacement of the crane trolley on the monorail but monorail but nodule-onus carriage, the transport wheels were used for moving the xx tire, and the jove wheels were used for moving wheels. monorails are mounted on lifters with various friction coefficients.

2. Vypoleni form of the elevator n. 1, characterized in that for the purpose of the first truck crane is neremegtsenn, its travel wheels are mounted on the rolling rail, and the monorail wheels on the sliding pods.

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