Ocean platform crane

Abstract

An ocean platform crane comprises a foundation pillar (3), a slewing bearing (4) and a rotary table (5). The foundation pillar (3) is of a hollow structure with two ends open, the bottom of the foundation pillar (3) is fixed onto a platform (1), a through hole is arranged in the middle of the rotary table (5), the rotary table (5) is rotatably matched with the foundation pillar (3) through the slewing bearing (4), the inner diameter of the through hole of the rotary table (5) and the inner diameter of the foundation pillar (3) are larger than the outer diameter of a pile leg (2), the lower portion of the pile leg (2) penetrates through the rotary table (5) and the foundation pillar (3), and safety gaps are reserved between the pile leg (2) and the inner wall of the rotary table (5) and between the pile leg (2) and the inner wall of the foundation pillar (3). The foundation pillar is of the hollow structure with the inner diameter larger than the outer diameter of the pile leg, and the pile leg is arranged in the foundation pillar, so that valuable space of the platform is saved, structural arrangement on the platform is facilitated, a boom cannot contact with the pile leg when the crane slews, normal operation of the crane is guaranteed, and structural safety of the crane and the pile leg is protected.

Description

technical field [0001] The invention relates to a fixed offshore platform crane, which belongs to the technical field of cranes. Background technique [0002] The fixed offshore platform provides a convenient and stable offshore operation and living place for human beings to develop and utilize marine resources. The fixed offshore platform consists of a platform and a number of legs that can be raised and lowered to provide support. Generally, there are three legs, which are respectively located at the load-bearing end points of the platform. The legs are longer in length and generally have a higher height out of the upper plane of the platform. Cranes are also arranged on the offshore platform for loading and unloading goods and lifting personnel, which are important production and safety equipment on the platform. Cranes are generally also arranged around the platform, so they are closer to the legs of the platform on the platform. During the operation of the crane, whe...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the fact that the distance between the existing offshore platform crane and the legs extending out of the platform is too close, the boom is easy to touch the legs when the crane is working, which affects the normal operation of the crane, and may damage the structure of the boom or legs due to collision and other defects and deficiencies, a new type of offshore platform crane is provided. The base column of the crane is a hollow structure with an inner diameter slightly larger than the diameter of the legs. The legs are arranged in the base column and integrated with the crane, which not only saves valuable space on the platform, It is convenient for the structural layout on the platform, and can avoid the collision between the jib and the pile legs when the crane is rotating, so as to ensure the normal operation of the crane and protect the structural safety of the crane and pile legs

Images