Step-type hydraulic bolt lifting mechanism

A lifting mechanism and step-by-step technology, applied in the field of self-elevating offshore platform lifting mechanisms, can solve problems such as plastic deformation of bolts, and achieve the effect of small shape and volume restrictions

Active Publication Date: 2016-06-29
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the bolts in the prior art are prone to plastic deformation, the embodiment of the present invention provides a step-by-step hydraulic bolt lifting mechanism

Method used

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  • Step-type hydraulic bolt lifting mechanism

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Embodiment

[0022] The embodiment of the present invention provides a step-by-step hydraulic bolt lifting mechanism, such as figure 1 and figure 2 As shown, the step-by-step hydraulic bolt lifting mechanism includes a leg 1, a moving ring beam 2 set on the leg 1, and a fixed ring beam 3 set on the leg 1. The cross section of the leg 1 is rectangular, and the dynamic Both the ring beam 2 and the fixed ring beam 3 are rectangular ring beams matching the pile leg 1; on the two opposite side walls of the pile leg 1, a plurality of horizontally arranged grooves are respectively opened along the length direction of the pile leg 1 1a, the position corresponding to the groove 1a on the moving ring beam 2 and the fixed ring beam 3 is respectively provided with a horizontal chute 6 that can communicate with the groove 1a, and the horizontal chute 6 is horizontally slid and provided with a slot that can be inserted into the groove 1a. The sliding block 7, the sliding block 7 is matched with the gr...

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PUM

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Abstract

The invention discloses a step-type hydraulic bolt lifting mechanism, and belongs to the field of self-elevating offshore platforms. The step-type hydraulic bolt lifting mechanism comprises a pile leg, a movable ring beam and a fixed ring beam, wherein a plurality of grooves are horizontally formed in two opposite side walls of the pile leg in the length direction of the pile leg respectively; horizontal chutes communicating with the grooves are formed in positions, corresponding to the grooves, on the movable ring beam and the fixed ring beam; sliding blocks, which can be inserted into the grooves in a clamped manner, are arranged in the horizontal chutes in a horizontally sliding manner, and are fitted with the grooves; the length of the sliding blocks is consistent with that of the square ring beams; horizontal oil cylinders are mounted at positions, corresponding to the sliding blocks, on the movable ring beam and the fixed ring beam respectively; the piston rods of the horizontal oil cylinders face to the pile leg, and are connected with the sliding blocks correspondingly; and the sliding blocks can extend into the grooves correspondingly. As the limitation on the shape and the size of the sliding blocks is low, the strength of the sliding blocks is much higher than that of a bolt, and plastic deformation of the sliding blocks in a user process can be avoided.

Description

technical field [0001] The invention relates to the field of self-elevating offshore platform lifting mechanisms, in particular to a stepping hydraulic bolt lifting mechanism. Background technique [0002] In marine engineering, the jack-up offshore platform has a wide range of applications. Because the offshore platform has the characteristics of self-navigation, fast positioning and protection from waves, it provides a stable working platform for offshore operations. [0003] All existing offshore platforms need to be equipped with lifting mechanisms. Among the existing lifting mechanisms of offshore platforms, rack and pinion lifting mechanisms and hydraulic pin lifting mechanisms are most widely used. Among them, the rack and pinion lifting mechanism requires high manufacturing precision and is expensive. On simple offshore platforms, users tend to use the hydraulic pin lifting mechanism. However, in the existing hydraulic pin lifting mechanism, due to the The force bet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B17/08
CPCE02B17/0809
Inventor 毛炳坤田崇兴程文池朱正都王鑫磊赵世琏龚云黄波陈佳俊
Owner WUHAN MARINE MACHINERY PLANT
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