Space interference-resistant arrangement for multiple hanging points crane hoisting wire rope

Abstract

The interference allocation of the crane steel cable comprises the main beam, active pulley set, static pulley set, rolling machine, featuring in the guide pulley at the top space, cover at both ends having roll bracket with different heights, linking line of both ends of the main beam roller barrel vertical central line with the center line of the guide pulley forming the same small deviation angle with the center line of the main beam, consistent in deviation angle of the each rolling machine at the same end, with the main beam both ends opposite in deviation angle with the main beam. The interference distribution is simple, convenient, efficient, safe, and reliable.

Description

technical field [0001] The present invention relates to a hoisting machine, in particular to a multi-lift point crane used for hoisting when offshore drilling platforms are docked in sections, and the spatial interference-proof arrangement of multi-hoisting systems on other similar cranes. Background technique [0002] The segmental docking of offshore drilling platforms puts forward strict requirements for the multi-lifting point cranes. The lifting capacity must be super large (combined lifting can reach 20,000 tons), the lifting height should be super high (up to 103m), and the main girder span should be large ( The span is 125m); in order to increase the lifting height and reduce the high construction cost brought by the high-grade (C50 grade) concrete support of the crane with super large lifting capacity, the main girder needs to adopt the level of the lower flange plate and the middle height of the upper cover plate The main beam structure is low on both sides, and th...

AI Technical Summary

Problems solved by technology

[0003] However, the number of hoisting mechanisms and winding systems of traditional cranes is small, generally 1 to 2 sets, and there is no staggered layout, which can be realized only by plane layout, but it is impossible to complete super-heavy lifting on the platform; so only multiple The lifting point crane is used to realize it, but the arrangement of multiple sets of hoisting mechanisms and wire rope winding systems within the narrow width of the main girder is basically impossible for the general arrangement type

Multi-lifting point cranes are usually used to lift super-large loads. The height of the main girder is relatively large, while the width between the webs of the main girder is small. Mutual interference; the research on the anti-interference layout scheme of the hoisting wire rope winding system of multi-lift cranes is a key problem to be solved urgently

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