Offshore platform lifting system with high reliability and wide speed range

Abstract

The invention relates to an offshore platform lifting system, in particular to a platform lifting system with high reliability and wide speed regulation range. The system includes a lifting mechanism and a hydraulic mechanism driving the lifting mechanism; the lifting mechanism includes a housing, a first end cover is provided on one side of the housing, a hydraulic motor and a brake device are installed on the first end cover, and the hydraulic motor Connected to the first gear shaft, the brake device is connected to the second gear shaft, the first sun gear in the housing, the center of the first sun gear is provided with a central shaft, the central shaft is connected to the second sun gear and the third sun gear, the first sun gear The central shaft of the center shaft is provided with a first planetary gear, the second sun gear is provided with a second planetary gear, and the third sun gear is provided with a third planetary gear; the third sun gear is connected with a lifting gear. The invention improves the reliability of the system under the multiple protection measures of the pressure loss safety hydraulic brake; the speed adjustment range of the device is expanded, and the lifting speed adjustment range is 0-0.60m / min under the rated load.

Description

technical field [0001] The invention relates to an offshore platform lifting system, in particular to a platform lifting system with high reliability and wide speed regulation range. Background technique [0002] The offshore platform is an operation platform used for exploration and collection of offshore oil and gas resources. During the operation of the platform, the offshore platform needs to be lifted and lowered in some cases. The existing offshore platform is installed on four legs fixed on the seabed. There is a lifting rack on the legs, and the offshore platform is installed on the climbing device. The lifting of the offshore platform is realized by the relative vertical movement of the climbing device and the legs. The existing climbing device generally drives the climb directly through a hydraulic motor and a reduction mechanism. However, when this type of structure is working, the torque carried by the hydraulic motor, the reduction mechanism and the climbing gea...

AI Technical Summary

Problems solved by technology

[0002] The offshore platform is an operation platform used for exploration and collection of offshore oil and gas resources. During the operation of the platform, the offshore platform needs to be lifted and lowered in some cases. The existing offshore platform is installed on four legs fixed on the seabed. There is a lifting rack on the legs, and the offshore platform is installed on the climbing device. The lifting of the offshore platform is realized by the relative vertical movement of the climbing device and the legs. The existing climbing device generally drives the climb directly through a hydraulic motor and a reduction mechanism. However, when this type of structure is working, the torque carried by the hydraulic motor, the reduction mechanism and the climbing gear is very large, and each component bears a large load during work, so the stability of the component is greatly affected. Moreover, when the speed is adjusted, the load of the components will fluctuate, which will further affect the reliability of the work, so the range of speed adjustment during operation is relatively small.

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