SU1009968A1 - Hook suspension - Google Patents

Abstract

HOOK POLUSKES, soctrial hull, made of two necks with holes, in which is placed the axis on which the blocks are installed, characterized in that with increasing productivity and reliability by accelerating the process of calming oscillations of the load during lifting and laying it on the installation site and reduce dynamic inertial loads, it is provided with plates attached to the outer side surfaces of the neck with guiding windows, coaxial holes in the cheeks, placed in the guide windows of the plates with sliders, eplennymi blocks on the axles and the dampers.

Description

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lO) OO The invention relates to the load gripping bodies of cranes, namely, hooks, draw povers. . Closest to the invention by. the technical essence and the achieved result is a hook suspension comprising a body made of two cheeks with holes in which the axis on which the blocks are mounted is located. The disadvantage of this device is the low performance of the crane and the unreliability of its elements. The purpose of the invention is to increase productivity and reliability by speeding up the process of calming the oscillation of the load during lifting and pointing it to the installation site and reducing the dynamic inertial loads. The goal is achieved by the fact that the hook suspension, comprising a body made of two cheeks with holes in which the axis on which the blocks are mounted, is fitted, with plates attached to the outer side surface of the cheeks, has coaxial holes in the cheeks, placed in the guide windows of the plates, with sliders fixed on the axles of the blocks, and shock absorbers. FIG. Figure 1 shows the hook suspension pe of the vertical axis of symmetry (dashed lines correspond to the displacement of the slide when the guides are horizontal, and the dot-and-dash offset of the slide when the guides are inclined), side view; in fig. 2 shows section A-A in FIG. one; in fig. 3 section bb in fig. one; in fig. 4 one of the plates with a guide window; in fig. 5 and FIG. 6 is a sectional view BB in FIG. 1 at the two extreme positions of the ram; in fig. 7 - shock absorber. The hook suspension includes a hook 1 with a crossbeam 2, which is hingedly fixed in the holes of the cheeks 3. In the upper part of the cheeks 3 there are holes in which axles 4 are placed with support 6 blocks of cargo rope 7 supported by nipples 5. To the outer side surfaces of the cheeks 3, plates 8 are attached with guide windows, coaxially with holes in the cheeks, by means of bolts 9. At the ends of the axes 4, slider plates 1O are installed in the said windows. Elong gaskets 11 and shock absorbers 12 are attached to the thoriams of the guiding windows of the plates 8. From the axial movements, the sliders and the axles 4 are fixed by locking strips 13 attached to the plates. The proposed suspension works as follows. In the absence of a load on the hook 1, the tension of the load rope is insignificant and under the action of shock absorbers 12 working in compression, the slide blocks 10 together with the axles 4 and blocks 6 move back to the extreme position as far as the stops of the slide blocks 10 into the gasket 11. The process of lifting the load from the ground is accompanied by a gradual by increasing the tension of the rope 7, under the action of which the blocks 6 on the axis with the axles 4 and the sliders 10 move towards the axis of symmetry of the suspension, deforming the shock absorbers 12. As a result, the distance between the blocks 6 decreases, and the time When the cargo winch engine is turned on until the load is lifted off the ground, it increases, which helps reduce the acceleration and amplitude of the load oscillation. With the disappearance of the inertial force, the tension of the rope 7 decreases and the distance between the axes 4 of the blocks 6 increases slightly. Calming the oscillations of the load is accomplished by rubbing the sliders Yu pressed to the plates 8 by the tension of the rope 7. The friction force and the load on the shock absorber are adjusted depending on the load capacity and drive characteristics by simultaneously rotating the plates 8 relative to the cheeks 3. For example, when installing the plates 8 at an angle of 45 ° to the horizontal direction of the rope 7; the load on the shock absorber 12 will be maximum, and the friction between the sliders 10 and the plates 8 will be minimal. When the load is lifted from the weight by the force of inertia of the load and suspension, the tension of the rope 7 increases during the start-up of the engine of the lifting mechanism, which is accompanied by the displacement of blocks 6 and the choice of the additional length of the rope, and consequently, a decrease in load dynamics and amplitude of load oscillations. Calm oscillations after the end of the transient process of lifting the load with weight or braking it on the weight is carried out by friction of the sliders 1O on the plate 8 as well as when lifting the load from the ground. The use of the proposed device allows to reduce the amplitude of

31009968 .4

Scientific research institutes and speed up the process of calming down the kopek inertial loads, which help the load to lift and roll up the gun, increases the productivity of the crane and

in place of the card, reduce the reliability.

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Claims (1)

HOOK SUSPENSION, comprising a housing made of two cheeks with holes in which an axis is placed on which blocks are mounted, characterized in that, in order to increase productivity and reliability by accelerating the process of calming the oscillation of the load when lifting and aiming it at the installation site and reduce dynamic inertial loads, it is equipped with plates attached to the outer side surfaces of the shears with guide windows, coaxial holes in the cheeks, sliders placed in the guide windows of the plates, fixed ennymi block-axes, and shock absorbers.