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Hoisting device for loop wheel machine

A hoisting device and crane technology, applied in the directions of transportation and packaging, load hanging components, and load trolleys, can solve problems such as damage to the hoisting equipment, damage to the suspended objects, and fewer lifting points, and achieve an increase in the force area. Large, high safety, the effect of increasing the force area

Active Publication Date: 2009-12-09
YANTAI RAFFLES SHIPYARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, hoisting cranes are widely used in hoisting projects. The hoisting device of the existing cranes generally adopts a winch fixed on the beam of the crane. The hoist is wound with a single fixed pulley and hook pulley through a wire rope, and the hook pulley The lifting device with this structure can meet the needs of most occasions, but when the large crane lifts heavy objects over 10,000 tons, the current lifting device cannot be used due to structural limitations. To meet the needs, the force of the existing lifting device is relatively concentrated, the lifting point is less, and the problem of lifting equipment damage is prone to occur during the lifting process. Concentrated force, easy to cause damage to the hanging objects

Method used

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  • Hoisting device for loop wheel machine
  • Hoisting device for loop wheel machine
  • Hoisting device for loop wheel machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, a kind of crane hoisting device, refer to figure 1 , more than three hoisting machines 1 are fixed on the crane beam 4, the hoisting machines 1 are distributed along the direction of the crane beam 4 and their heights are successively lowered from the ends of the crane beam 4 to the center, and fixed on the other side of the middle part of the crane beam 4 There are upper guide pulleys 5 equal in number to the winch 1, and the height of the upper guide pulleys 5 is successively lowered from the end of the near side crane beam 4 to the center, and the lower part of the crane beam 4 is provided with the same number of lower guide pulleys as the number of upper guide pulleys 5 6. The fixed pulley block 7 is fixed on the crane beam 4 below each lower guide pulley 6. In this embodiment, 4 sets of fixed pulley blocks 7 are used. Each hoist 1 is respectively opposite to the upper guide pulley 5 and the lower The guide pulley 6 and the fixed pulley group 7 are wou...

Embodiment 2

[0018] Embodiment 2, a kind of crane hoisting device, refer to figure 1 , figure 2 , image 3 , on the basis of Embodiment 1, the lifting hook 3 is that the hook body 10 is composed of more than two levels of balance beams 11 axially connected, and the top of the last level of balance beams 11 is provided with a connecting shaft hole 12, and other levels of balance beams 11 is provided with three connecting shaft holes 12 distributed in a triangle, and the two connecting shaft holes 12 at the bottom corner of the upper level balance beam 11 are respectively connected with the connecting shaft holes 12 at the top corner of a lower level balance beam 11. The bottom corners of the beams 11 are respectively connected with a hook 13. In this embodiment, three-stage balance beams 11 are connected to each other. The first-stage and second-stage balance beams 11 are provided with three connecting shaft holes 12 distributed in a triangle. The two connecting shaft holes 12 at the bot...

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Abstract

The present invention discloses one kind of slinging equipment of crane. The slinging equipment consists of winches, steel cables, hoisting hooks and crane crossbeams. There are three or more winches, each of which is connected through one steel cable to the upper and lower lead pulleys, fixed pulley block and sling dog assembly. The sling dog assembly comprises fixed hooks with sling and sling dog body comprising over two equalizing beams connected through axles. The present invention has the features of great hoisting tonnage, even stress, high safety and reliability, and simple structure.

Description

technical field [0001] The invention belongs to the technical field of hoisting equipment, in particular to a hoisting device of a large-tonnage crane used for building an offshore platform. Background technique [0002] At present, hoisting cranes are widely used in hoisting projects. The hoisting device of the existing cranes generally adopts a winch fixed on the beam of the crane. The hoist is wound with a single fixed pulley and hook pulley through a wire rope, and the hook pulley The lifting device with this structure can meet the needs of most occasions, but when the large crane lifts heavy objects over 10,000 tons, the current lifting device cannot be used due to structural limitations. To meet the needs, the force of the existing lifting device is relatively concentrated, the lifting point is less, and the problem of lifting equipment damage is prone to occur during the lifting process. Concentrated force may easily cause damage to the suspended objects. Contents ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C11/16
Inventor 章立人兰公英张谭龙韩华伟姜效瑜滕瑶
Owner YANTAI RAFFLES SHIPYARD