SU1523517A1 - Arrangement for gripping tubes row-by-row - Google Patents

Abstract

The invention relates to a lifting and transport equipment, in particular to devices for the serial seizure of pipes. The aim of the invention is to expand the operational capabilities by providing operation in cramped conditions. The device for gripping tubes includes a frame 1, a traverse 8 and two shoulders gripping levers 4. In traverse 1, vertical holes 7 are made in which rods 6 are located, connected by straps 5 to the upper arms of gripping levers 4. Movement of rods 6 provides the ability to work in cramped conditions. 2 hp f-ly, 2 ill.

Description

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The invention relates to lifting and handling equipment, in particular to devices for seizing the pipes.

The aim of the invention is to expand the operational capabilities by providing operation in cramped conditions.

FIG. 1 shows a device for JQ pipe gripping, FIG. 2 is a section A-A and N. a of FIG. one.

The device for orderly gripping pipes comprises a frame 1 with extreme 2 and middle 3 vertical posts, 5 between which are articulated by the middle parts of a pair of two shoulders gripping arms 4. The upper arms of the arms 4 are rigidly connected 5 to the lower arms of the movable JQ rods 6 mounted in the vertical opening 7 of the crosspiece 8. The crossbar 8 has the possibility of vertical displacement relative to the frame 1 along the guides 9 and is connected with it by the mechanism 25 10 fixing their relative position. The device is hinged onto the hoist using eye 11. The horizontal guides 12 of the frame 1 are spring-loaded. Q 13 strips 14 with crossbars 15 pivotally connected with 16 L-shaped levers 16 additional telescopic bars with 17 and intermediate arms 18 traverse 8. The levers 16 are hinged to the frame 1.

The device works as follows.

In the initial position, before the gripping of the pipes, the frame 1 is in the lower position with respect to the crosspiece 8 and is held in this position by the fixing mechanism 10. When this movable rod 6 is located in the lower position relative to the traverse 8, the upper shoulders of each pair of gripping levers 4 divorced in opposite directions, and their lower shoulders are brought together. The slats 14 with the crossbars 15 are extended in opposite directions with respect to the frame 1, and the telescopic additional rods 17 and the intermediate levers 18 are stretched. In this position, the device is lowered onto the row of pipes being gripped. In this case, the vertical supports 2 and 3 and the lower shoulders of the gripping levers 4 pass between the captured pipes so that one side of each pipe is expanded.

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a vertical post 2 is laid, and the second is the lower shoulder of the gripping lever 4. When the device is further lowered, it rests on the pipes of the lower row with the lower shoulders of the gripping levers 4. In this case, the locking mechanism 10 separates the yoke B from the frame 1.

When the traverse 8 is lifted, the latter, along the guides 9, moves away from the frame 1 and, through the rods 6 and rod 5, acts on the upper shoulders of the gripping levers 5, turning them towards each other. The lower arms of the gripping arms 4 are consumed in opposite sides, slipping along the surface of the pipes of the underlying row, and wedging under the pipes to be gripped, press the latter to the legs 2 and 3, ensuring their grip. In parallel with this, the yoke 8 through the telescopic additional rods 17 and the L-shaped levers 16 acts on the crossbars 15, shifting them towards each other, thus ensuring the alignment of the pipes along the ends and the longitudinal centering of the device with respect to the pipes. The springs 13 are compressed. In this position, the device with pipes moves to the place of installation. When laying pipes into the gondola stack, it is necessary to provide a guarantee clearance between the crossbars 15 and the end of the gondola on one side and the end of the neighboring stack on the other side within 5-10 mm.

After stacking the pipes and further lowering the crosshead 8, the latter along the guides 9 approaches the frame -1 under the action of its own gravity. The vertical holes 7 of the crosspiece 8 slide along the rods 6, which remain fixed, since the lower arms of the gripping levers 4 are clamped between the pipes. The telescopic additional thrusts 17 are shortened, and the cross-pieces 15 under the influence of compressed springs 13 are extended in opposite directions up to the stop against the end of the gondola car or the end of the adjacent stack. In this case, the locking mechanism 10 again connects the yoke 8 with the frame,

When lifting the device, the lower shoulders of the gripping levers 4 are easily pulled out from under the pipes, since the oim are wedge-shaped, and under the action of gravity of the upper arms.

t g 5 and movable rods 6 rotate to their original position. In this case, the rods 6 move downwards relative to the traverse 8. When the device is raised beyond the gondola car, under the influence of the compressed springs 13, the cross member 15 moves in opposite directions to occupy the initial position.

operational capabilities by providing work in cramped conditions, the traverse is made with vertical holes, and the device is equipped with rods installed with the possibility of limited movement, at the lower ends of which there are common horizontal axes

In order to provide ease of lifting the device, made by the wars n, and the mechanism beyond the gondola car effort to align the ends of the pipes, the springs 13 should be possible. 2. The device according to claim 1, lt and l is less, m. e. determined by the condition that the mechanism for providing the extension of the crossbars 15, the alignment of the tubes includes the frames installed on the longitudinal beams and the guides rigidly connected with them, which are spring-loaded one against the other with cross-pieces at the ends for contact with the ends of the tubes 20 are HINGED

and, pipes in each stack of the gondola should be laid alternately.

Claims (3)

Claim 1. Device for ordering pipe gripping, comprising a frame with vertical posts, a traverse associated with a lifting machine and a frame with a mechanism for fixing their relative position, two shoulders gripping levers located between the legs of a frame and connected with it by means of common horizontal axes , on the upper arms of which are articulated rods connected to each other by common horizontal axes, which is distinguished by the fact that, in order to expand Attached at the ends of the longitudinal beams of the frame are L-shaped levers, pivotally connected to the ends of the crosshead and the ends of one arms of the G-circumference of the intermediate levers 25 and pivotally connected to the ends of the other arms of the L-shaped levers and crossbars additional bars. 3. The device according to PP. 1 and 2, about t - in that the intermediate levers and additional rods are made telescopic. 5 frames fixed on the longitudinal beams and guides rigidly connected with them, one spring-loaded one relative to another with cross-pieces at the ends for contact with the ends of the pipes, 20 articulated Q Attached at the ends of the longitudinal beams of the frame are L-shaped levers, pivotally connected to the ends of the crosshead and the ends of one arms of the G-circumference of the intermediate levers 25 and pivotally connected to the ends of the other arms of the L-shaped levers and crossbars additional bars. 3. The device according to PP. 1 and 2, about t - in that the intermediate levers and additional rods are made telescopic. 1