SU1491798A1 - Load engaging device - Google Patents

Abstract

The invention relates to a lifting and transport equipment, in particular, to a load handling device. The purpose of the invention is to reduce the damage to heavy tubular pipes of different diameters. In the case of the load gripping device, drive curved gripping levers are installed, on the free ends of which clamping jaws are installed with the possibility of radial movement and fixation. A sleeve 16 is installed in the housing, in which a rod 18 is installed, fixed relative to the sleeve 16. 3 sludge.

Description

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The invention relates to a lifting machinery, namely, lifting devices for pipes of different diameters.

The purpose of the invention is to reduce the damageability of tons of pipes of different diameters.

Figure 1 shows the lifting device, side view, the initial position i in figure 2 is the same section; on fig.Z - section aa in figure 1.

The lifting device for pipes of different diameters includes a housing 1 suspended on a hook of a lifting mechanism by means of an earring 2, drive bent gripping arms 3 and 4 mounted in a housing on rollers 5 and 6, a driving movement of gripping arms 3 and 4 consisting of an electric motor 7 gearbox 8 and sprockets 9. The transverse plates 10 and 11 are the limiters of the limiting expansion of the arcuate jaws, which are pairwise interconnected by steps 12 and 13. At the free ends of the curved arms 3 and A, using clamps 14, the s jaws 15.

In the lower surface of the housing 1 there is a hole in which the sleeve 16 is installed with a spring 17. In the sleeve 16 a rod 18 is installed with a developed support surface 19 and fixed to the desired size of pipes with a clamp 20. To the top of the sleeve 16 is fixedly fixed. figurative stopper 21, the upper part of which is installed in guide 22 and interacts with the opening of plate 23 located at the ends of the gripping arms 3 and 4. Clamping tubes 15 capture the pipe 24.

Load handling device for tr works as follows.

In the initial position, the L-shaped stopper 21 under the action of the springs 17 enters the hole of the plate 23, thus preventing the extension of the arcuate gripping arms 3 and 4.

When lowering the lifting device for pipes of different diameter

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The support surface 19, resting on the surface of the pipe 24, drives the rod 18 and the L-shaped stopper 21 leaves the mesh of the plate 23 located on the gripping arms 3 and 4.

After that, the drive is turned on and the curved gripping levers 3 and 4 are moved until the inner surfaces of the clamping jaws 15 are in contact with the pipe 24. Due to the eccentricity of the movement centers of the gripping levers 3 and 4 and the geometric axis of the pipe 24 and the presence of a spring-loaded sleeve 16 in which the rod 18 is mounted with a developed bearing surface 19, a reliable, without damage, fixation of the pipe 24 with minor compressive forces occurs.

When using a load gripping device dp of a different diameter of pipes, the clamps 14 release the clamping jaws 15, which are set to the desired position, and the bar with a developed bearing surface 19 is fixed to a position corresponding to the height with the help of the clamp 20.

Claims (1)

Invention Formula A load gripping device comprising a housing with an arcuate guide and driving arcuate levers installed therein, characterized in that, in order to reduce the damageability of tons of differently sized tubular pipes, the housing is equipped with at least one opening, and the device is fitted vertically installed into the opening of the housing and a sleeve, spring-loaded relative to its lower surface, a load clamp, made in the form of a string with a lower support surface located in the sleeve with the possibility of a longitudinal feather relative to it and fixing, clamping jaws mounted on the ends of the arcuate gripping levers with the possibility of radial movement and fixing positions. /five l t 7 I / /