Installation method of ship bow telescopic paddle based on omega sealing principle
An installation method and flange installation technology, which are used in ship parts, ship construction, transportation and packaging, etc., can solve problems such as reduced installation accuracy, rework, and difficulty in flatness processing, and achieve the effect of ensuring installation accuracy and shortening cycle times.
Active Publication Date: 2015-09-09
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 an installation method of a ship bow telescopic paddle based on an omega sealing principle. The installation is carried out at the finally-assembling period of fragments, so that the adverse impact on the installation precision of the telescopic paddle caused by the deformation of a ship body after the combination of the fragments at the fragment pre-installation period can be avoided, the installation precision of the telescopic paddle can be guaranteed, and the period for constructing a shipway can be shortened. In addition, the telescopic test of the entire stroke of the telescopic paddle can be completed before a ship enters the water, so that the problem that the ship needs to be returned to the shipway because the telescopic paddle cannot be normally folded and unfolded due to the installation precision or problems of the device can be avoided.
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 ...
Claims
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Inventor 戴雁航赖国栋
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY