Positioning device for secondary pier falling of ship in dock

A technology of positioning device and limit device, which is applied in the direction of berth, ship parts, ship construction, etc., can solve the problems of difficulty in ensuring positioning accuracy, low safety factor, and time-consuming work, so as to improve the scope of application, improve positioning accuracy, and disassemble convenient effect

Inactive Publication Date: 2012-02-22
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 middle area of ​​docking 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] However, the positioning devices for floating in the dock and the second falling p

Method used

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  • Positioning device for secondary pier falling of ship in dock
  • Positioning device for secondary pier falling of ship in dock
  • Positioning device for secondary pier falling of ship in dock

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The positioning device for the secondary falling pier of the ship in the dock includes a limiting device 3 and a retracting device 4; the limiting device 3 is installed at the bottom of the dock and is fixedly connected with the inner wall of the dock wall, and is used to limit the position of the ship; the retracting device is connected to the ship and dock walls for towing and stowing ships.

[0038] The second pier positioning process of the ship in the dock is as follows:

[0039] First, if figure 2 As shown, after the water injection in the dock reaches the safe floating condition, the ship 1 is towed to a predetermined position near the dock side by the dockside pilot trolley and the vertical winch, and the limiting device 3 and the retracting device 4 are arranged.

[0040] Then set up an optical measuring instrument (laser theodolite or total station) on the dock wall to measure and locate the ship 1 to be positioned, record and report the direction and distan...

Embodiment 2

[0044] The positioning device for the secondary falling pier of the ship in the dock includes a limiting device 3 and a retracting device 4; the limiting device 3 is installed on the bottom of the dock and is fixedly connected with the inner wall of the dock wall, and is used to limit the position of the ship; the retracting device 4 is connected Ships and dock walls for towing and stowing ships.

[0045] It also includes a dock wall trolley track fixed on the top of the dock wall along the ship's length direction; the limiting device 3 includes a positioning frame 5, a retractable support head 6 and a clamp; the positioning frame 5 is a frame structure, and it faces the dock. The side of the wall is fixed on the track of the trolley on the dock wall by a clamp, and it is connected to the telescopic support head 6 through a hydraulic oil pump toward the side of the ship, and its bottom is also connected and fixed with the pre-embedded steel bars at the bottom of the dock; the t...

Embodiment 3

[0053] The positioning device for the secondary falling pier of the ship in the dock includes a limiting device 3 and a retracting device 4; the limiting device 3 is installed on the bottom of the dock and is fixedly connected with the inner wall of the dock wall, and is used to limit the position of the ship; the retracting device 4 is connected Ships and dock walls for towing and stowing ships.

[0054] It also includes a dock wall trolley track fixed on the top of the dock wall along the ship's length direction; the limiting device 3 includes a positioning frame 5, a retractable support head 6 and a clamp; the positioning frame 5 is a frame structure, and it faces the dock. The side of the wall is fixed on the track of the trolley on the dock wall by a clamp, and it is connected to the telescopic support head 6 through a hydraulic oil pump toward the side of the ship, and its bottom is also connected and fixed with the pre-embedded steel bars at the bottom of the dock; the t...

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PUM

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Abstract

The invention provides a positioning device for floating and secondary pier falling of a ship in a dock in a ship building process, belonging to the field of ship manufacturing. The positioning device comprises a limiting device and a furling device; the limiting device is arranged at the bottom of the dock, is fixedly connected with an inner wall of a dock wall and is used for limiting the position of the ship; and the furling device is connected with the ship and the dock wall and is used for dragging and furling the ship. According to the invention, the problems of low safety coefficient, difficulty in guaranteeing positioning precision and the like of the traditional ship moving method are solved, the positioning device has the advantages of simplicity for operation, rapidness in positioning and the like, the limiting device and the furling device can be flexibly distributed according to the size of the ship, are easily mounted and dismounted and cannot occupy spatial positions of the dock, and the positioning device can be widely applied to the field of ship manufacturing.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a floating and secondary pier positioning device in a dock during shipbuilding. 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 close-up. [0003]...

Claims

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Application Information

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IPC IPC(8): B63C3/00B63B9/06
Inventor 李家林何琎李小虎
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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