Unilateral positioning method for secondary docking of ship in dock

A side positioning and ship technology, applied in the direction of berth, ship parts, ship construction, etc., can solve the problems of difficult to guarantee positioning accuracy, asymmetric cable length, low safety factor, etc., to improve positioning accuracy, improve the scope of application, and ease the use of The effect of pressure

Active Publication Date: 2012-03-21
CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Traditional vertical winches and winches have large inertia when positioning, and it is difficult to control the accuracy
Moreover, due to the wide dock width, one side of the hull is far away from the dock wall, and the wire rope connection is longer, resulting in a low safety factor
[0005] 2. If figure 1 As shown, when there are other ships in the dock, especially when they are side by side, it is easy to cause interference during positioning; The four cables in the mid-side area of ​​the dock will interfere with each other, or the cables will collide with the side-by-side hull structure/equipment/outfitting, and the length of the cables on the left and right sides of each half-ship is extremely asymmetrical, which is extremely unfavorable for the adjustment and positioning accuracy of the half-ship. Positioning accuracy is difficult to guarantee
[0006] And patent 200410066741.6 and patent 200810039748.7 announced the fl

Method used

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  • Unilateral positioning method for secondary docking of ship in dock
  • Unilateral positioning method for secondary docking of ship in dock
  • Unilateral positioning method for secondary docking of ship in dock

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Example 1

[0046] The single-side positioning method of the secondary pier of the ship in the dock is realized through the following steps:

[0047] 1) Fill the dock with water to make the undocked ship out of the dock;

[0048] 2) When the ship that needs to drop the pier for the second time meets the safe floating state, the ship that needs to drop the pier for the second time is towed to the predetermined position near the dock side by the dock side pilot trolley and the vertical winch;

[0049] 3) Arrange limiting device 3 in the dock, the limiting device 3 is installed at the bottom of the dock and is fixedly connected with the inner wall of the dock wall to limit the position of the ship; and a retracting device 4 is arranged, and the retracting device connects the ship and the dock wall , used for towing and retracting ships.

[0050] 4) Set up measuring instruments on the dock wall to measure the positioning of the ship that needs to drop the pier twice, reco...

Example Embodiment

[0055] Example 2

[0056] The single-side positioning method of the secondary pier of the ship in the dock is realized through the following steps:

[0057] 1) Fill the dock with water to make the undocked ship out of the dock;

[0058] 2) as figure 2 As shown, when the ship that needs to drop the pier for a second time meets the safe floating state, that is, after the water level in the dock is greater than the maximum floating draft of the hull, bow and stern by more than 500mm, the ship that needs to drop the second pier will be towed by the dock side pilot trolley and the vertical winch. to the predetermined position close to the side of the dock;

[0059] 3) Arrange limiting device 3 in the dock, the limiting device 3 is installed at the bottom of the dock and is fixedly connected with the inner wall of the dock wall to limit the position of the ship; and a retracting device 4 is arranged, and the retracting device connects the ship and the dock wall , used for towing...

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Abstract

The invention provides a unilateral positioning method for secondary docking of a ship in a dock, and belongs to the field of undulation and secondary docking unilateral positioning in a dock during ship building. Through utilization of a stop device, a furling device and the like, the unilateral positioning method for secondary docking of a ship in a dock is suitable for multiple types of ships,is easy for operation and is convenient for dismounting and mounting. The unilateral positioning method for secondary docking of a ship in a dock can solve the problem that based on the traditional ship movement method, a safety factor is low and positioning precision is difficult to be guaranteed. The unilateral positioning method for secondary docking of a ship in a dock has the advantages of simple operation and fast positioning, and can be widely utilized for the field of ship building.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a single-side positioning method for floating and secondary pier falling in a shipbuilding process. Background technique [0002] In order to improve the utilization rate of the dock, the series of ships often adopt the two-and-a-half-line serial construction method during the construction process. For shipyards that undertake the construction of more ship types, half-ship construction will also occur during the construction of ships in different docking periods. Because the construction period is different, the completed ship must be undocked first, and the unfinished ship must be floated first, and then the pier will continue to be built. All of these need to control the positioning accuracy of the ship and the pier while the hull is floating. The back of the pier meets the accuracy requirements of the pier, or meets the construction accuracy requirements of the half-ship...

Claims

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Application Information

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IPC IPC(8): B63C3/00B63B9/06
Inventor 李家林
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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