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Large-tonnage platform loop wheel machine

A large-tonnage, crane technology, used in cranes, walking bridge cranes, transportation and packaging, etc., can solve the problems of poor crane stability, troublesome construction, and inappropriate hoisting, so as to meet the requirements of large-tonnage hoisting and improve safety. Stability, the effect of increasing the lifting tonnage

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

AI Technical Summary

Problems solved by technology

[0002] Due to the relatively large weight of offshore platforms, the current construction of offshore platforms generally adopts segmented construction, using small cranes or offshore floating cranes to hoist in segments, and then assembled and welded into one. Low, high risk, at the same time, due to the complex offshore operation environment, the segmental hoisting is greatly affected by the environment, and the hoisting is prone to inadequacy when the weather conditions are complex, making the mutual positioning of the segmented platforms inaccurate, causing troubles to the construction, and this Due to the many welding points of the built platform, the welding quality cannot be guaranteed, which will affect the overall quality of the platform, and the construction period and construction cost will also be greatly affected
The existing small cranes are generally built on the translational track, and the hoisting position is adjusted through the overall movement, so the stability of the crane is poor, and it cannot meet the requirements of large-tonnage hoisting

Method used

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  • Large-tonnage platform loop wheel machine
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  • Large-tonnage platform loop wheel machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, a kind of large-tonnage platform crane, refer to figure 1 , figure 2 , there are four columns 1 fixed on the ground, the opposite two columns 1 have the same height, the height of the two columns 1 near the dock door is higher than the height of the two columns 1 far away from the dock door, and the two ends of the crossbeam 3 are respectively arranged on the opposite sides. On the two tall columns 1, the cross-section of the beam 3 is box-shaped and adopts a variable-section welded structure. A set of hoisting mechanisms 8 composed of a hoist 4, a pulley block 5 and a hook 7 are provided on both sides of each beam 3. The lifting device 8. The hoisting device structure of the existing crane is adopted, and an operating room 2 is arranged between the two columns 1 on the same side, and the electrical control system controls the electrical device of the whole crane, which constitutes a structure of the present invention.

Embodiment 2

[0023] Embodiment 2, a kind of large-tonnage platform crane, refer to figure 1 , figure 2 , image 3 , Figure 4 , on the basis of Embodiment 1, a crossbeam translation device is provided at the connection between the crossbeam 3 and the column 1, and the device is fixed with sliding oil cylinder hinge supports 9 on both sides below the end of the connection between the beam 3 and the column 1, The plane where the sliding oil cylinder hinge support 9 is located is perpendicular to the axial direction of the crossbeam 3, and two sets of hydraulic cylinders 10 vertical to the axial direction of the crossbeam 3 are arranged in the middle of the sliding oil cylinder hinge support 9, and the two ends of the hydraulic cylinder 10 are respectively fixed on two sliding On the cylinder hinge support 9, a locking device 11 is provided between the two sets of hydraulic cylinders 10, and a locking track 12 parallel to it is provided between the two sets of hydraulic cylinders 10. The u...

Embodiment 3

[0024] Embodiment 3, a kind of large-tonnage platform crane, refer to figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , on the basis of Embodiment 2, a maintenance crane 17 is respectively provided at both ends of each beam, a hoist crane 18 is provided inside each beam, and anchoring is provided between each column 1 and the beam 3 on it device and windproof cable 19, the anchoring device is that both sides below the crossbeam 3 ends are respectively fixed with anchoring brackets 20, and two anchoring brackets 20 are fixed inside the screw elevator base 21 along the outside of the beam direction, and the screw elevator base 21 is provided with a spiral The anchor plate 28 is fixed by the lower pin of the screw lift 22, the screw lift 22 is connected with the outer hand wheel 23 of the anchor bracket 20, and the lifting mechanism is 3-8 winches 4, and the winches 4 are distributed along the direction of the crane beam 3 And the height is successively l...

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Abstract

The invention discloses a large-tonnage platform crane, which is composed of a column, an operating room, a beam, a hoist, a pulley block, a steel wire rope, a hook and an electrical control system. The two columns are at the same height, and the height of the two columns near the dock door is higher than the height of the two columns away from the dock door. The two ends of the beam are respectively set on the two opposite columns of the same height. The cross-section of the beam is box-shaped and adopts a variable-section welding structure. There is a set of lifting mechanisms on both sides of each beam. The present invention has the advantages of large lifting tonnage, large span, high lift, many lifting points, stable lifting and translation, adopting a beam translation structure, and can adapt to the requirements of various lifting points. features.

Description

technical field [0001] The invention belongs to the technical field of hoisting equipment, in particular to a large-tonnage crane used for building offshore platforms. Background technique [0002] Due to the relatively large weight of offshore platforms, the current construction of offshore platforms generally adopts segmented construction, using small cranes or offshore floating cranes to hoist in segments, and then assembled and welded into one. Low, high risk, at the same time, due to the complex offshore operation environment, the segmental hoisting is greatly affected by the environment, and the hoisting is prone to inadequacy when the weather conditions are complex, making the mutual positioning of the segmented platforms inaccurate, causing troubles to the construction, and this Due to the many welding points of the built platform, the welding quality cannot be guaranteed, which affects the overall quality of the platform, and the construction period and construction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C17/06
Inventor 章立人兰公英张谭龙韩华伟姜效瑜滕瑶
Owner YANTAI RAFFLES SHIPYARD
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