SU183353A1 - LOADING TRAILERS FOR MAJOR-SIZED LOADS - Google Patents

Description

Lifting beams for large-sized loads are known, comprising a beam with lifting devices moved along it with screws.

In contrast to the known traverses of this type, the proposed traverse automatically captures the load with releases that have protrusions for interacting with the load handling devices, and is mechanically released from the load after being transported by a crane. , external, non-working shoulders of which are spring-loaded, and internal ones, which are used to grip outlets, can turn, overcoming the force of the springs, under the influence of eschnego force and release the captured cargo issues.

FIG. 1 shows two lifting beams, posted on the slings to the hooks of the crane beam; in fig. 2 - traverse construction (cut).

The lifting beam / consists of the following main components: beams 2, load gripping devices 3, devices for combining the center of gravity of the cargo with the axis of the crane hook, the troso-block system for mechanical unraveling of the cargo and the construction tons.

from gripping paired double-arm levers in the form of cams rotating on axles 5, which are fixed in arms 6; springs 7, fixed at one end for the cams, and the other for brackets S; steel support .9. A threaded hole is made in the upper part of the support along the axis for screwing in the shaft 10. In the lower part of the onors there is an opening for the tube // of the shaft 12.

A device for aligning the weight center of the load with the axis of the crane hook and adjusting the position of the load gripping devices is installed on the upper plane of the beam. It consists of two shafts 10 with a trapezoidal thread for screwing into the movable stops, a decoupler 13, a handle 14, bearing 15 and a handle 16.

The tros-block system for mechanically unraveling cargo includes a shaft 12 with tongs 17, on which tubes 11 with tongue slots are mounted. At the ends of the shaft there are handles 18 for its rotation. Tubing cables 19 are connected with gripping cams 4.

The lifting rods 20 (see Fig. 1) are steel bars with strips 21 connected to the beam and the rings 22 to illuminate the cross bar to the hooks 23.

At the upper ends of the outlets 24 of the load 23, protrusions 26 are made (welded sleeves or sleeves on the threads can be used).

Lifting traverse works as follows.

Traverses / suspended from the hooks of the crane are lowered onto the outlets of the load. When the lower inclined planes 27 of the gripping cams come into contact with the protrusions 26 of the outlines, the inner shoulders of the cams, overcoming the resistance of the springs 7, turn on the axles 5 and gradually raise the slivers by semicircular grooves 28 along the projections.

When the cams are below the protrusions 26, the internal shoulders of the cams will assume a horizontal position. The crane operator includes balancing beams 29 (see Fig. 1) with traverses on the rise. Having passed the free area, the inner shoulders of the gripping jaws are hooked onto the shoulders of the projections 26, and the outer shoulders abut the lower plane of the beam 2. The load rises.

When the load is laid on the structure, the balancing beams 29 with traverses are lowered. At the same time, the inner shoulders of the cams move down from the shoulders of the projections downward, and a gap is formed between them and the internal shoulders of the cams. Thereafter, the lowering of the beam beams with traverses stops.

The worker (slinger) pivots the gripping cams from horizontal to vertical position, and the protrusions of the outlets come out of the cams, and the cams are mechanically brought to their original position.

Thereafter, the slinging and lifting cycle is repeated.

With the help of a device for aligning the center of gravity of the cargo with the axis of the crane and adjusting the position of the load handling devices, the latter can be set in accordance with a different arrangement of outlets. In addition, if it is necessary to move only one lifting device to one side or the other, then the shafts 10 can be separated and, by rotating the shaft 16 of the shaft W, 0, move the gripping device with cams.

Subject invention

5 1. A lifting beam for large-sized loads, containing a beam with lifting devices moved along the beam by means of screws, characterized in that, in order to automate the capture of loads with outlets equipped with protrusions for interacting with lifting devices, and to mechanize the release of these loads after being transported by crane, each lifting device is completed

5 in the form of paired double-shouldered arms having the shape of cams, the external, non-working shoulders of which are spring-loaded, while the internal ones used to grip the outlets can be rotated, overcoming the spring force, under

0 by the influence of external forces and release trapped cargo releases.

2. A traverse according to claim 1, characterized in that in order to influence the inner shoulders of the gripping cams into the load gripping devices

5, a shaft is mounted which actuates a troso-block system associated with gripping jaws.

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