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Crane lifting mechanism and centralizing guide device

A technology of guiding device and hoist, applied in the direction of lifting device, etc., can solve problems such as shaking and inaccurate positioning, and achieve the effect of high rigidity, overcoming shaking and good stability

Active Publication Date: 2013-12-11
SICHUAN HONGHUA PETROLEUM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For horizontally placed risers, the lifting height reaches about 16m. Therefore, the rigidity and stability of the hoisting mechanism of the crane are very important for accurate positioning during hoisting and transportation. Lifting the riser with a steel rope has problems such as shaking and inaccurate positioning when lowering

Method used

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  • Crane lifting mechanism and centralizing guide device
  • Crane lifting mechanism and centralizing guide device
  • Crane lifting mechanism and centralizing guide device

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0025] An embodiment of the present invention is a crane lifting mechanism and a righting guide device, which includes a traveling mechanism 13 and a lifting guide mechanism 14;

[0026] The lifting guide mechanism 14 includes: a lifting hydraulic motor 3, a righting guiding device frame 4, an adjusting gasket 5, a guide wheel 6, a lifting rod 7, and a rack 8, and the lifting hydraulic motor 3 and the righting guiding device frame 4 are installed on On the mobile trolley 2 of the walking mechanism 13, the rack 8 is fixed vertically and symmetrically on both sides of the lifting rod 7, and the lifting rod 7 vertically passes through the frame 4 of the righting guide device, and on the The upper and lower ends of the righting guide device frame 4 are provided with the guide wheels 6, the guide wheels 6 support the lifting rod 7 and limit the movement of the lifting rod 7 in the...

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Abstract

The invention relates to the technical field of deepwater offshore oil drilling and particularly relates to a crane lifting mechanism and centralizing guide device. The device comprises a lifting guide mechanism and a walking mechanism, wherein the lifting guide mechanism consists of a first gear, a lifting hydraulic motor, a lifting rod and racks; the walking mechanism consists of an anti-tipping part, a travelling trolley, a walking guide device and a trolley walking hydraulic motor; the lifting guide mechanism adopts the meshed gear and rack transmission principle, and a centralizing guide device frame is additionally arranged. Compared with an existing method of hoisting a marine riser with a steel rope, the device has the advantages of being high in rigidity and better in stability, and overcoming the problem that the marine riser shakes during hoisting and the positioning is inaccurate during decentralization under working environments of a deepwater floating-type marine drilling platform and a drilling ship.

Description

technical field [0001] The invention relates to the technical field of deep-water offshore oil drilling, in particular to a crane lifting mechanism and a righting guide device. Background technique [0002] Drilling riser is one of the important links in the entire deepwater offshore oil drilling equipment, and its hoisting and handling cranes have always been monopolized by developed countries such as Europe and the United States. At present, the hoisting mechanism of the riser crane in use generally adopts wire rope hoisting and hydraulic cylinder hoisting. The lifting mechanism is generally a telescopic structure or a wire rope directly lifts the hoisting beam. The riser is placed horizontally or vertically on the main deck of the drilling platform or drilling ship. The riser crane is mainly responsible for lifting the riser from the storage area on the main deck to the riser catwalk and lifting the riser from the catwalk to the riser storage area on the main deck. For...

Claims

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Application Information

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IPC IPC(8): B66F11/00
Inventor 李志刚梁会高高杭周珍珍吕岩
Owner SICHUAN HONGHUA PETROLEUM EQUIP
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