An automatic piling device for an offshore platform

Abstract

The invention provides an automatic piling device of an ocean platform, and belongs to the technical field of marine engineering. The automatic piling device comprises a mounting plate and a plurality of piling units arranged on the mounting plate and the lower surface of the mounting plate, wherein the piling unit comprises fixing cylinders fixed on the mounting plate, drill bits are connected in the fixing cylinders, the drill bits are connected with the fixing cylinders through splines, threaded holes are formed in the drill bits, driving rods are connected in the threaded holes in a threaded mode, at least one bevel gear I is fixedly arranged at the upper end of each driving rod, hydraulic cavities are formed on the fixing cylinders, the two ends of the hydraulic cavities communicate with a hydraulic input main pipe and a hydraulic return pipe respectively, the hydraulic input main pipe is connected with a hydraulic pump I, turbines which are in one-to-one correspondence with the bevel gears I are rotationally connected in the hydraulic cavities, shaft sleeves which are connected with the fixing cylinders through bearings are fixedly arranged outside the turbines, bevel gears II meshed with the bevel gears I are arranged on the shaft sleeves. The automatic piling device has the advantages of being capable of realizing remote piling.

Description

technical field [0001] The invention belongs to the technical field of ocean engineering, and relates to an automatic piling device for an ocean platform. Background technique [0002] Offshore platforms are structures that provide production and living facilities for drilling, oil production, container transportation, observation, navigation, construction and other activities at sea. According to structural characteristics and working conditions, they can be divided into three categories: fixed, movable and semi-fixed. The lower part of the fixed platform is directly supported by piles, expanded footings or other structures and is fixed to the seabed. According to the support situation, it is divided into two types: pile foundation type and gravity type. The movable platform floats in the water or is supported on the seabed, and can be displaced from one well to another. According to the supporting conditions, it can be divided into bottom type and floating type. In recent...

AI Technical Summary

Problems solved by technology

In recent years, a novel semi-fixed offshore platform is being studied, which can be fixed in deep water and has mobility. The typical semi-fixed offshore platform is a tension leg platform. The principle of this platform is to use semi-compliant and semi-rigid The platform generates a buoyancy much greater than the self-weight of the structure, which is balanced with the pretension, so as to provide a relatively stable and safe working environment for production, and its own upright buoy structure can also make it have good motion performance. However, this kind of platform Affected by waves, etc., there is movement, which is not conducive to the smooth and stable coordinate operation of the platform

[0003] The fixed platform requires subsea operations, which are difficult and risky, and it takes a long period to relocate the platform

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