Ocean platform lifting device

Abstract

The invention discloses an ocean platform lifting device, and belongs to the field of ocean engineering equipment. The device comprises a pile fixing frame, a fixed ring beam, a movable ring beam, power units and chord pipes. The pile fixing frame is fixedly connected with the fixed ring beam. The fixed ring beam and the movable ring beam are sequentially arranged from top to bottom in the axial direction of a pile leg. Each power unit comprises a power piece and a gear. The power pieces are fixedly arranged on the fixed ring beam. The output ends of the power pieces are rotationally matched with the gears. One end of each chord pipe is connected to the movable ring beam. The other ends of racks penetrate the fixed ring beam. The racks engaged with the gears are arranged on the chord pipes. According to the ocean platform lifting device in the embodiment, the chord pipes with the racks are installed on the movable ring beam, meanwhile, the pile fixing frame and the power units matched with the racks are installed on the fixed ring beam, the racks in the chord pipes and the gears in the power units are engaged, the movable ring beam and the fixed ring beam alternately move along the pile leg through engagement of the racks and the gears in the ocean platform lifting process, and therefore an ocean platform can rapidly rise and fall, and accordingly the operation efficiency can be improved.

Description

technical field [0001] The invention relates to the field of ocean engineering equipment, in particular to an ocean platform lifting device. Background technique [0002] The bolt lifting device is widely used in offshore platforms, and it can cooperate with the legs of the self-elevating offshore platform to drive the hull to move up and down along the legs. [0003] The existing bolt lifting device includes: a solid pile frame, a moving ring beam, a fixed ring beam, a first bolt arranged on the fixed ring beam, a second bolt arranged on the moving ring beam, and a fixed ring beam connected to the moving ring beam. The lifting cylinder, the pile-fixing frame is fixedly connected with the offshore platform, the pile-fixing frame, the movable ring beam and the fixed ring beam are all sleeved on the pile legs, the first pin and the second pin can extend into the pin holes on the pile legs, and pass through the first The pins and the second pins are alternately inserted into t...

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: the lifting of the offshore platform is realized through the expansion and contraction of the lifting cylinder. Although the stability is good, the lifting speed is slow, which seriously affects the operating efficiency. Therefore, in order to make the marine Under the premise that the lifting and lowering of the platform is stable, safe and meets the technical requirements, it is of great significance to increase the lifting speed of the offshore platform

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