SU819042A1 - Crossbeam for handling loads with offset gravity center - Google Patents

Description

one

The invention relates to hoisting machines and relates to load handling devices for lifting loads with a different location of the center of gravity.

The traverse is known for goods with a displaced center of gravity, containing a rectangular frame equipped with lifting gear, and devices for changing the lengths of the slings (1.

The known traverse cannot be used when lifting tons of zheloves, whose center of gravity can be located at any point of the plane parallel to the frame plane with a constant size of the pressed product, due to the complexity of the design of the device for changing the lengths of the slings.

The purpose of the invention is to simplify the construction of the traverse.

For this purpose, the fixtures for changing the lengths of the slings contain brackets fixed in the corners of the frame to its longitudinal beams with openings in which removable fingers are placed connected to one end of each of the slings. In addition, each sling is made of a closed rope folded in half.

FIG. 1 - traverse balancer, general view; in fig. 2 - side view; in fig. 3 is a top view; in fig. 4 is an axonometric image of the sling retailer. The traverse comprises a rectangular welded frame 1, made of longitudinal 2 and transverse 3 box-section beams.

Four lines 4 are attached to frame 1,

each of which is made of a closed rope, folded in half with the formation of 4 strands. Slings 4 are held at the corners of frame 1, where round ends of beams 5 of beams 2 go around. To prevent slings 4 from falling off from rounded ends 5, fences 6 are installed on them. Lower ends of slings 4 are attached to removable fingers 8 by loops 7 9 brackets installed

rows of holes 10. On the upper plane of the beams 2, the guide cheeks 11 are installed, which are a continuation of the inner walls of the beams 2. The cheeks 11 have a flange (bent edge) 12 in the plane,

perpendicular to the rounding of the ends of 5 beams 2.

On the lower plane of the frame 1, four lifting bodies 13 are installed to which the cargo is attached. The slings 4 are visited on the load hook 14 of the crane.

In the drawings, they are designated by letters: A, B, C, D — the ends of the slings corresponding to the loops 7; O - traverse building center 1; Oi - the geometric center of the frame; C. t. - the center of the t tin of cargo; b - longitudinal displacement of the building center “O (in the plane of the longitudinal beams 2); e is the transverse displacement of the center of the strop "O (in the plane of the transverse beams 3).

Work with the crosshead is carried out as follows.

The frame 1 is hung by the slings 4 on the hook 14 of the crane, is fed by this crane to the load and is connected to it by means of the bodies 13. Then, lowering the hook 14 of the crane, the slings 4 are relaxed. The slings 4 from the ends of the 5 longitudinal beams 2 are prevented by fences 6.

To set the required displacement of the center of the overhang "O relative to the geometric center" Oi, the frame traverse determines the necessary positions of the fingers 8 in the holes 10 of the brackets 9.

The position of the fingers 8 will depend not only on the magnitude of the displacement of the center of the load tin, but also on the direction of this displacement:

only longitudinal;

only transverse;

both longitudinal and transverse.

After installation of the fingers 8, the traverse in one of the positions of the line 4 provided by the special table is tightened and the load is lifted. With a correctly determined center of gravity of the load and the position of the fingers 8, the load rises almost horizontally.

If an error is detected in the determination of its center of gravity when the load is lifted (the load rises with a skew), the axes of the traverse frame are adjusted by re-shifting them to the side, which reduces the load skew.

After cargo operations are performed, the traverse is disconnected from the cargo by disconnecting the organs 13.

Claims (2)

1. A traverse for goods with a displaced center of gravity, containing a hook frame mounted on a hook by means of slings using a slings, equipped with load gripping devices, and devices for changing the lengths of slings, in order to simplify the design, devices for changing lengths the slings contain brackets fixed in the corners of the frame to its longitudinal beams with openings in which removable fingers are placed connected to one end of each of the slings. 2. Traverse under item 1, characterized in that each sling is made of a closed rope folded in half. Sources of information taken into account in the examination 1. Patent of Great Britain No. 1281027, cl. In 8H, 1970 (prototype). iO