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Tower body structure and welding method of a marine crane

A technology for cranes and towers, which is applied to the tower structure of marine cranes and its welding field. It can solve the problems of inability to apply large-scale marine cranes and poor load capacity, achieve strong protection effects, ensure uniformity, and reduce self-weight. Effect

Active Publication Date: 2018-12-14
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 of poor load capacity and inapplicability to large-scale offshore cranes in the prior art, the embodiment of the present invention provides a tower body structure of an offshore crane and a welding method thereof

Method used

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  • Tower body structure and welding method of a marine crane
  • Tower body structure and welding method of a marine crane

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Embodiment 1

[0045] The embodiment of the present invention provides a tower body structure of a marine crane, see figure 1 , the offshore crane includes a boom assembly 110, a pulley block 120 and a wire rope 130, the wire rope 130 is fixed on one end of the boom assembly 110 around the pulley block 120, the other end of the boom assembly 110 is fixed on the bottom of the tower body structure 200, and the pulley block 120 is installed on the top of the tower body structure 200 .

[0046] see figure 2 , the tower body structure includes a tower body lower structure 210, a tower body middle structure 220 and a tower body upper structure 230 connected in sequence, the tower body lower structure 210, the tower body middle structure 220 and the tower body upper structure 230 all include eight side plates, Such as Figure 3a-Figure 3d As shown, the tower body structure is an octagonal platform shape, and the eight side plates of the tower body lower structure 210, the tower body middle struc...

Embodiment 2

[0073] The embodiment of the present invention provides a welding method for the tower body structure of a marine crane, which is suitable for welding the tower body structure provided in Embodiment 1, see Figure 8 , the welding method includes:

[0074] Step 201: Bending the steel plate according to the size of the upper structure of the tower body, and welding multiple steel plates to form the upper structure of the tower body.

[0075] In this embodiment, the tower upper structure includes eight side plates.

[0076] Step 202: Bending the steel plate according to the size of the middle structure of the tower body, and welding multiple steel plates to form the middle structure of the tower body.

[0077] In this embodiment, the middle structure of the tower body includes eight side plates, and the thickness of the side plates of the middle structure of the tower body is greater than the thickness of the side plates of the upper structure of the tower body.

[0078] Step 2...

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Abstract

The invention discloses a tower body structure of an ocean engineering crane and a welding method of the tower body structure and belongs to the technical field of marine machinery. The tower body structure comprises a tower body lower structure, a tower body middle structure and a tower body upper structure, which are connected in sequence; each of the tower body lower structure, the tower body middle structure and the tower body upper structure comprises eight side plates; the tower body structure is of an eight-prism platform shape; the eight side plates are located on eight side faces of the tower body structure with the eight-prism platform shape; a cavity with the eight-prism platform shape is formed inside the eight side faces; the thickness of the side plates of the tower body lower structure and the side plates of the tower body middle structure, and the thickness of the side plates of the tower body upper structure are gradually reduced; the tower body structure further comprises an upper reinforcing annular rib, a middle reinforcing annular rib, a lower reinforcing annular rib, eight first reinforcing longitudinal ribs, four second longitudinal ribs and four third longitudinal ribs, which are arranged in the cavity; the reinforcing annular ribs are transversely arranged on the tower body structure; and the reinforcing longitudinal ribs are longitudinally arranged on the tower body structure. The tower body structure disclosed by the invention can be applicable to large-size ocean engineering cranes.

Description

technical field [0001] The invention relates to the technical field of marine machinery, in particular to a tower body structure of a marine crane and a welding method thereof. Background technique [0002] Offshore crane is a hoisting machinery provided by the ship for loading and unloading cargo, mainly including tower body structure, driver's cab, boom assembly, pulley block, wire rope and other structures. Among them, the tower structure is mainly used to carry other structures of the crane. [0003] The existing tower structure includes a lower cylindrical structure, a middle circular platform structure and an upper cylindrical structure. The upper and lower ends of the middle circular platform structure are respectively connected with the upper cylindrical structure and the lower cylindrical structure. The diameter of the lower cylindrical structure is larger than The diameter of the upper cylindrical structure; the upper and lower reinforcing ring ribs are welded on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/62B23K31/02
CPCB23K31/02B66C23/62
Inventor 任攀姬红斌
Owner WUHAN MARINE MACHINERY PLANT