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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.

Active Publication Date: 2015-11-04
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem in the prior art that when the force is too large, the life of the bolts will be reduced or even damaged, resulting in potential safety hazards, the embodiment of the present invention provides a rack and pinion platform lifting system

Method used

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  • Rack and pinion platform lifting system
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  • Rack and pinion platform lifting system

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Embodiment

[0035] An embodiment of the present invention provides a rack and pinion platform lifting system, see Figure 1 to Figure 5 , the system includes: a pile frame for being sleeved on the pile leg 10 and a rack and pinion lifting mechanism 20, the rack and pinion lifting mechanism 20 includes a mounting frame 30, a rack 40 fixed on the pile frame, The power unit 50 and the deceleration unit 60 , the deceleration unit 60 is installed on the installation frame 30 and connects the rack 40 and the power unit 50 .

[0036] The reduction device 60 includes: a climbing pinion 102 meshed with the rack 40, a planetary reduction box 103 connected to the power unit 50, a front flange 104 and a rear flange 105, and the front flange 104 and the rear flange 105 are correspondingly provided with Mounting hole 105a, one end of the gear shaft of the climbing pinion 102 passes through the mounting frame 30 and is rotatably connected with the front flange 104, and the other end of the gear shaft pa...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B17/08
Inventor 朱正都刘智雄郝喆毛炳坤
Owner WUHAN MARINE MACHINERY PLANT
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