Self-elevating drilling platform and automatic uniform-load planet differential lifting device thereof

Abstract

The invention discloses a self-elevating drilling platform and an automatic uniform-load planet differential lifting device of the self-elevating drilling platform. The automatic uniform-load planet differential lifting device comprises multiple lifting units. Each lifting unit comprises a motor, a main speed reducer, a planet mechanism, an idler pulley, a first climbing gear, a driven gear, and a second climbing gear, wherein the motor is provided with a motor shaft, the main speed reducer is provided with an input shaft and an output shaft, the input shaft is connected with the motor shaft, the planet mechanism comprises a planet speed reducer and an inner and outer gear ring device, the output shaft is connected to the planet speed reducer, the inner and outer gear ring device is not connected with the main speed reducer, the first climbing gear is connected with the planet speed reducer, the idler pulley is meshed with the inner and outer gear ring device, the driven gear is installed on a connecting shaft, the driven gear is meshed with the idler pulley, the second climbing gear is fixedly connected to the connecting shaft, and the second climbing gear and the first climbing gear are equal in rotation speed and opposite in direction. The automatic uniform-load planet differential lifting device is safe in structure, high in reliability, high in operation stability, and high in automatic uniform-load ability.

Description

technical field [0001] The invention relates to the technical field of jack-up drilling platforms, in particular to an automatic load-equalizing planetary differential lifting device for jack-up drilling platforms. Background technique [0002] With the increasing demand for oil energy in the global market and the continuous depletion of land oil energy, countries all over the world have shifted oil extraction from traditional land to oceans rich in oil and gas resources. [0003] Jack-up drilling platforms have always been the mainstream equipment for offshore oil exploitation in various countries because of their strong positioning ability, long life, low cost and high reliability. The lifting device that can realize the platform rising or falling in the drilling platform is one of the key components of the whole platform. For a long time, the research and development of safer and more reliable lifting devices has gradually become the focus of the marine equipment manufac...

AI Technical Summary

Problems solved by technology

Since the two climbing gears 96 and 97 are driven by their respective drive systems, there are problems of high cost, poor load sharing capacity and poor running stability, which shortens the life of the lifting device

[0005] In summary, due to the shortcomings in the design of the traditional lifting device, it has high cost and short life, poor load sharing capacity and operation stability, troublesome installation, manufacturing and maintenance, and low reliability of equipment operation, especially the lifting device during the platform lifting process. Insufficient load sharing capacity will lead to easy damage to the equipment itself

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