CN112550599A

CN112550599A - Ship integral segmented embedded installation method

Info

Publication number: CN112550599A
Application number: CN202011339783.8A
Authority: CN
Inventors: 王前进; 龚容; 刘渊
Original assignee: Hudong Zhonghua Shipbuilding Group Co Ltd
Current assignee: Hudong Zhonghua Shipbuilding Group Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-03-26

Abstract

The invention discloses a ship integral subsection embedded installation method, which comprises the following steps: rebuilding a new subsection, and pre-embedding equipment needing to be modified or additionally installed into the newly built subsection; cutting an opening with the same size as the new section in the area to be modified or additionally installed; preparing a plurality of self-made hoisting trolleys which can be lifted, walked and adjusted left and right; paving a track on the ground for the trolley to walk, arranging the trolley on the track, and hoisting the finished new subsection use crane to the trolley; a power point is arranged in front of the track, the hoisting trolley is slowly dragged to the position right below the installation point through a winch and a chain block and is embedded into the main hull, and the subsection is completely embedded into the main hull by using the fine adjustment function of the cross-sliding bedplate of the hoisting trolley; synchronously starting up and down adjustment functions of the multiple trolleys to jack the new sections to the installation positions; assembling and welding the new sections.

Description

Ship integral segmented embedded installation method

Technical Field

The invention belongs to the technical field of ship construction, and particularly relates to a ship integral segmented embedded installation method.

Background

After the ship is finished and delivered, the ship needs to be modified or additionally provided with equipment for various reasons, and particularly the additional installation work amount of large-scale equipment is huge. The method is characterized in that a ship needs to enter a dock platform to destroy an outer plate and an internal structure of an original ship, a traditional hoisting process combining a crane and a chain block is adopted, a main ship body needs to be welded with a hoisting ring as a bearing point, so that the ship body deforms due to stress, then modified or additionally installed equipment is installed at a needed position, and then the internal structure and the outer plate of the ship are repaired. However, the method has the disadvantages of narrow construction space, high operation difficulty, influence on working efficiency and certain negative influence on installation precision, and meanwhile, a large amount of cutting, polishing, electric welding, painting and other work exists in subsequent work, so that great potential safety hazards exist in construction in the narrow space; on the other hand, the construction time in the dock is longer, the dock period is influenced, and the construction cost is increased.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a ship integral subsection embedded installation method.

In order to achieve the purpose, the invention adopts the following technical scheme:

a ship integral subsection embedded installation method comprises the following steps: rebuilding a new subsection, and pre-embedding equipment needing to be modified or additionally installed into the newly built subsection; cutting an opening with the same size as the new section in the area to be modified or additionally installed; preparing a plurality of self-made hoisting trolleys which can be lifted, walked and adjusted left and right; paving a track on the ground for the trolley to walk, arranging the trolley on the track, and hoisting the finished new subsection use crane to the trolley; a power point is arranged in front of the track, the hoisting trolley is slowly dragged to the position right below the installation point through a winch and a chain block and is embedded into the main hull, and the subsection is completely embedded into the main hull by using the fine adjustment function of the cross-sliding bedplate of the hoisting trolley; synchronously starting up and down adjustment functions of the multiple trolleys to jack the new sections to the installation positions; assembling and welding the new sections.

Preferably one end of the track extends into the opening and the other end of the track extends outside the hull.

Preferably, the trolley comprises a moving groove, the traverse table is arranged in the moving groove, the traverse table can move in the moving groove, and the moving direction of the traverse table is in the horizontal plane and perpendicular to the track.

Preferably, the trolley is provided with a base, the bottom of the base is provided with steel wheels, the steel wheels are matched with the rails, the upper portion of the base is provided with an oil pressure driven lifting structure in the vertical direction, and the lifting end of the lifting structure is fixedly connected with the moving groove.

Compared with the prior art, the invention has the beneficial effects that: when the ship structure is reconstructed and installed, the main ship body is free from any force, so that the main ship body is free from any deformation; the method has the advantages of simple operation, safety, high efficiency, no deformation of the ship body, perfect joint control, node lifting, loss reduction and labor intensity reduction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic flow chart of the installation method of the present invention.

Fig. 2 is a schematic view of the overall structure of the trolley of the present invention.

1-transversely moving the bedplate; 2-moving the trough; 3-a lifting structure; 4-a base; 5-orbit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

As shown in fig. 1-2, the present embodiment provides a ship integral segment embedded installation method. The self-made steel wheel type crane trolley and the steel rail are adopted, the friction force is small, the self-made crane trolley has the functions of moving back and forth, left and right and up and down, and the main hull is not touched to finish the hoisting process. The invention relates to a novel hoisting process suitable for installing and hoisting large-scale equipment under special working conditions by embedding a main hull in sections.

Step one, a new subsection is built again, and equipment needing to be modified or additionally installed is embedded into the newly built subsection;

step two, cutting an opening with the same size as the new section in the area needing to be additionally installed;

step three, preparing three self-made hoisting trolleys which can be lifted, walked and adjusted left and right, laying segmented bracket tools, cranes, windlasses, chain blocks and other conventional hoisting tools;

fourthly, paving a track on the ground and an upper track of the trolley, and hoisting the finished new subsection crane onto the trolley;

step five, starting a power point, a winch and a chain block arranged at the front end, slowly dragging the self-made hoisting trolley to the position right below a mounting point, embedding the self-made hoisting trolley into the main hull, and completely embedding the segments into the main hull by using a transverse bedplate fine adjustment function of the hoisting trolley; (ii) a

Step six, synchronously starting up the vertical adjustment function of the three self-made hoisting trolleys to jack the new subsection to the installation position;

and step seven, assembling and welding to complete all installation.

Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.

Claims

1. A ship integral subsection embedded installation method is characterized by comprising the following steps: rebuilding a new subsection, and pre-embedding equipment needing to be modified or additionally installed into the newly built subsection; cutting an opening with the same size as the new section in the area to be modified or additionally installed;

preparing a plurality of self-made hoisting trolleys which can be lifted, walked and adjusted left and right;

paving a track on the ground for the trolley to walk, arranging the trolley on the track, and hoisting the finished new subsection use crane to the trolley;

a power point is arranged in front of the track, the hoisting trolley is slowly dragged to the position right below the installation point through a winch and a chain block and is embedded into the main hull, and the subsection is completely embedded into the main hull by using the fine adjustment function of the cross-sliding bedplate of the hoisting trolley;

synchronously starting up and down adjustment functions of the multiple trolleys to jack the new sections to the installation positions;

assembling and welding the new sections.

2. The marine vessel integral section embedment mounting method as claimed in claim 1, wherein one end of said rail extends into said opening and the other end of said rail extends outside of the hull.

3. The ship integral segment embedded installation method of claim 2, wherein the crane trolley comprises a moving groove, the traverse table is arranged in the moving groove, the traverse table can move in the moving groove, and the moving direction of the traverse table is in a horizontal plane and perpendicular to the rail.

4. The ship integral segment embedded installation method according to claim 3, wherein the trolley is provided with a base, steel wheels are arranged at the bottom of the base and are matched with the rail, an oil pressure driven vertical lifting structure is arranged at the upper part of the base, and a lifting end of the lifting structure is fixedly connected with the moving groove.