An installation method of bow telescopic propeller based on ω sealing mechanism
An installation method and a technology for installing flanges, which are applied to ship components, ship construction, transportation and packaging, etc., can solve the problems of lower installation accuracy, rework, long berth cycle, etc., and achieve the effect of ensuring installation accuracy and shortening the cycle
Active Publication Date: 2017-05-17
CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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Problems solved by technology
It also saves the processing of the ordinary sealing ring slot, and only needs to process the flatness of the structural base plane where the Ω sealing ring is placed. The processing difficulty is less than that of the slot processing, but because the structural base is in the shape of a large diameter , there are still some difficulties in its flatness processing
[0005] There are usually two options for installing telescopic propellers. One is to install telescopic propellers after the main hull of the ship is formed. This can ensure the installation accuracy of telescopic propellers, but it will lead to a longer period of ship construction.
The second is to choose to install telescopic propellers in the segmented pre-installation stage, which can reduce the installation period of the berth. However, due to the adverse effect of hull deformation on the installation accuracy of telescopic propellers after the segments are closed, it is easy to reduce the installation accuracy, resulting in the failure of telescopic propellers after the ship is launched. Normal lowering to work position, resulting in rework
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[0033] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0034] figure 1 It is a schematic flow chart of a method for installing telescopic propellers at the bow of a ship based on the Ω sealing mechanism proposed by the embodiment of the present invention; figure 2 It is a schematic front view diagram of the installation structure of the hull general section and telescopic paddles in the embodiment of the present invention; image 3 yes figure 1 Schematic diagram of the top view structure of the base of the mobile milling machine tool involved in step S200 ( image 3 The angle of view is equivalent to figure 2 top view from the right perspective); Figure 4 yes figure 2 The magnified image at A in the middle; Figure 5 yes figure 1 Step S200 involved in the use of laser point-picking method to detect the flatness of the structura...
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The invention relates to a method for installing telescopic propellers at the bow of a ship based on the Ω-sealing mechanism, which is installed at the stage of segmented assembly and general assembly, so there is no such thing as the segmental pre-installation stage, which is caused by the deformation of the hull after the segments are closed. The reverse effect brought by the installation accuracy ensures the installation accuracy of the telescopic propeller and shortens the period of building the berth. In addition, the present invention completes the telescopic test of the entire stroke of the telescopic propeller before the ship is launched, avoiding the problem that the ship needs to be re-arranged due to the failure of the telescopic propeller to be retracted normally after the ship is launched due to installation accuracy or equipment problems. .
Description
technical field [0001] The invention relates to the field of ship bow telescopic propulsion propellers, in particular to an installation method of ship bow telescopic propellers based on the Ω sealing mechanism. Background technique [0002] As the main scale of marine engineering ships becomes larger and larger, the requirements for maneuverability are higher and higher, and the dynamic positioning capabilities of DP2 and DP3 are generally required, it is increasingly unsatisfactory to simply equip the bow of the ship with lateral thrusters, and more and more It is more and more required to be equipped with retractable propulsion paddles (hereinafter referred to as telescopic paddles) that can be retracted freely. [0003] Generally speaking, the O-ring or rectangular sealing ring is used to ensure watertightness between the mounting flange of the telescoping propeller and the mounting surface of the base on the ship. O-ring or rectangular sealing ring is a kind of rubber ...
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IPC IPC(8): B63B9/00
Inventor 戴雁航赖国栋
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY