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Underwater installation method for main thruster

An installation method and thruster technology, applied in transportation and packaging, ship parts, ships, etc., can solve the problems of disrupting the production rhythm of shipbuilding enterprises, increasing shipbuilding construction costs, and prolonging the construction period, so as to avoid the production rhythm and reduce the cost of ships. Maintenance cost, effect of reducing docking cost

Inactive Publication Date: 2015-05-06
CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional main propeller installation is generally carried out in the dock, but due to some special reasons, the ship to be installed with the main propeller has been undocked and the ship is floating. At this time, if the traditional main propeller installation method is used, it needs to be reinstalled Only when the ship is docked can the installation of the main propeller be completed. However, re-docking will not only incur a large docking cost and disrupt the production rhythm of the shipbuilding enterprise, but also lead to an extension of the construction period and increase the cost of shipbuilding construction.
In addition, when the main propeller is reinstalled after overhaul, the ship is in a floating state in the waters outside the dock. If the main propeller is re-docked and installed, it will also cause a large docking fee and disrupt the production rhythm of the shipyard. Prolong the construction period and increase the construction cost of shipbuilding

Method used

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  • Underwater installation method for main thruster
  • Underwater installation method for main thruster
  • Underwater installation method for main thruster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1-3 Shown, a kind of main thruster underwater installation method comprises the following steps:

[0036] 1) Adjust the floating state of the carrier ship according to the installation space requirements of the main propeller, and reserve a certain installation space at the installation position of the main propeller;

[0037] 2) Design and manufacture an auxiliary buoyancy tank according to the external dimensions and weight of the main thruster underwater part of the main thruster to be installed;

[0038] 3) Use the lifting device to hoist the main thrust gearbox to the installation position, and make a fixed connection. The installation of the main thrust gearbox specifically includes the following steps;

[0039] a) hoisting the main propulsion gearbox into the auxiliary pontoon, and moving the auxiliary pontoon to the installation space below the carrier ship;

[0040] b) Adjust the floating state of the auxiliary pontoon, after aligning the main...

Embodiment 2

[0053] The underwater installation method of the main thruster comprises the following steps:

[0054] 1) Adjust the floating state of the carrier ship according to the installation space requirements of the main propeller, and reserve a certain installation space at the installation position of the main propeller;

[0055] 2) Design and manufacture an auxiliary buoyancy tank according to the external dimensions and weight of the main thruster underwater part of the main thruster to be installed;

[0056] 3) According to the installation position of the main propulsion gearbox, an installation hole is opened on the deck, and the main propulsion gearbox is hoisted from the installation hole into the cabin of the carrier ship by a lifting device, and the fixed connection of the main propulsion gearbox is completed;

[0057] 4) hoisting the underwater part of the main propulsion into the auxiliary buoyant tank, and moving the auxiliary buoyant tank to the installation space below...

Embodiment 3

[0063] An underwater disassembly method of a main propeller, according to the reverse process of embodiment 1, with the help of the auxiliary buoyancy tank, the main propeller underwater part and the main propeller gearbox can be disassembled, and the carrier ship is in a floating state The disassembly of the main propeller is realized without entering the dock, which saves docking costs and is conducive to improving construction efficiency and reducing costs.

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Abstract

The invention relates to the technical field of ship equipment installation, in particular to an underwater installation method for a main thruster. According to the underwater installation method for the main thruster, by the aid of an auxiliary buoyant box, the main thruster can be installed in a floating state after a ship is undocked, the ship does not need to be docked, the docking cost of the ship is reduced, the production rhythm of a ship enterprise is also prevented from being disturbed, the construction period is shortened, and the shipbuilding construction cost can be better lowered. The reversion process of the underwater installation method is adopted, the main thruster can be disassembled conveniently, the docking cost can be reduced as well, the construction period is shortened, the construction efficiency is improved, and the ship maintaining cost is lowered.

Description

technical field [0001] The invention relates to the technical field of installation of marine devices, in particular to an underwater installation method of a main propeller. Background technique [0002] The main propeller of an electric propulsion ship is generally composed of a main propulsion gearbox, a main propulsion underwater part and a motor, and there is a coupling between the main propulsion gearbox and the motor. The traditional installation of the main propeller is generally carried out in the dock, but due to some special reasons, the ship that needs to be installed with the main propeller has been undocked and the ship is in a floating state. Only when the ship is docked can the installation of the main propeller be completed. However, re-docking will not only incur a large docking cost and disrupt the production rhythm of the shipbuilding enterprise, but also lead to an extension of the construction period and increase the cost of shipbuilding construction. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B9/00
Inventor 严平根冯仕清陈标烘徐波
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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