Rack and pinion platform lifting system

A platform lifting, rack-type technology, applied in the field of offshore platforms, can solve the problems of reduced bolt life, hidden dangers, damage, etc., and achieve the effect of extending the service life, avoiding stress, and improving safety performance.
CN103850236BActive Publication Date: 2015-11-04WUHAN MARINE MACHINERY PLANT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN MARINE MACHINERY PLANT
Publication Date
2015-11-04

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Abstract

The invention discloses a gear rack type platform ascending and descending system, which belongs to the technical field of ocean platforms. The system comprises a pile fixing frame and a gear rack type lifting mechanism, wherein the pile fixing frame is used for being sheathed on a pile leg, the gear rack type lifting mechanism comprises an installing frame, a rack, a motive power device and a speed reducing device, the speed reducing device is arranged on the installing frame and is connected with the rack and the motive power device, the speed reducing device comprises a climbing pinion, a planetary reduction gearbox, a front flange and a back flange, the installing frame comprises a pair of installing plates in parallel opposite arrangement and a connecting plate for connecting the pair of installing plates, through holes used for allowing the climbing pinion to pass are correspondingly formed in the installing plates, force transmission mechanisms are arranged on the opposite surfaces of the pair of installing plates corresponding to each through hole, when the speed reducing device is arranged on the installing frame, the back flange is butted with the force transmission mechanisms of the installing frames positioned at the two sides of the back flange in the ascending and descending direction of the platform, and the front flange is butted with the force transmission mechanisms positioned at the two sides of the front flange in the ascending and descending direction of the platform.
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Description

technical field

[0001] The invention relates to the technical field of offshore platforms, in particular to a rack and pinion platform lifting system. Background technique

[0002] The lifting system is a key component of the offshore jack-up offshore platform, and the performance of the lifting system directly affects the safety performance and service life of the jack-up offshore platform. The lifting system is installed at the junction of the platform body and the legs of the offshore platform. It can make the legs and the platform body move up and down relative to each other, or fix the platform body at a certain position of the legs. Commonly used lifting systems are hydraulic and rack and pinion.

[0003] Among them, the rack and pinion lifting system mainly includes a motor, a reduction device, a mounting frame for installing the reduction device, and a rack installed on the legs, etc. The reduction device mainly includes: climbing pinion and a reduction gear connect...

Claims

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