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Production technology of hatch coaming and hatch cover

A manufacturing process and hatch coaming technology, which is applied to the manufacturing process of hatch coamings and hatch covers, can solve the problems of difficult control of manufacturing precision, inconvenient manufacturing, etc. The effect of efficiency

Inactive Publication Date: 2009-02-11
江苏熔盛重工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the hull has a certain height, especially for large ships, hatch coaming and hatch covers must be continuously carried by gantry cranes, which brings great inconvenience to manufacturing
In addition, in the high-altitude operation, especially on the water surface, due to natural factors and the difficulty of the operator's operation, it is difficult to control the production accuracy

Method used

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  • Production technology of hatch coaming and hatch cover
  • Production technology of hatch coaming and hatch cover
  • Production technology of hatch coaming and hatch cover

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0013] Such as figure 1 As shown, first copy the actual main deck linetype of the dock where the hatch cover 1 is located to the platform 2, and then position the positioning line above the platform 2 according to the shape and height of the hatch enclosure 3, and then place the hatch enclosures one by one. The wall 4 is positioned and welded, and the precision inspection is carried out to remove the margin; then the feet 5 at the four corners of the hatch enclosure 3 are evenly numbered and symmetrically welded.

[0014] Assembling hydraulic equipment, piping and electrics etc. on the welded hatch coaming 3, and then hoisting the hatch cover 1, installation, and commissioning, this assembly is a conventional process, and will not be repeated here.

[0015] Finally, the whole hatch coaming 3 and the hatch cover 1 that have been made are hoisted onto the dock at one time, and are fixedly connected with the dock.

specific Embodiment 2

[0016] Such as figure 2 , 3 As shown, the other steps are the same as those in Example 1. In the positioning of the hatch coaming 3, tire frame 6 and tire frame beam arch 7 are made on platform 2 according to the shape of main deck and main deck beam arch. 6. It is made of C20 channel steel and supported by vertical and horizontal diagonal braces. After the tire frame 6 and the tire frame beam arch 7 are manufactured, the accuracy is tested, the margin is removed, and the hatch circumference 3 is positioned and welded on its periphery.

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Abstract

The invention discloses a manufacture technology for a hatch coaming and a hatch cover. The manufacture technology mainly comprises steps of the positioning of the hatch coaming, the surplus cutting, welding, then the assembly of the hydraulic equipment, pipelines and the electrical equipment, and then the hoisting of the hatch cover, the installation and the final debugging; the hatch coaming and the hatch cover adopt the following steps that firstly the actual main deck line type of the position of a dock where the hatch cover is positioned is copied onto a platform, and then positioning, the accurate detecting and welding are carried out according to the shape and the height of the hatch coaming on the platform; then the hydraulic equipment, the pipelines and the electrical equipment are assembled, after that, the hatch cover is hoisted; and finally the whole manufactured hatch coaming and the hatch cover are hoisted in a hatch position for one time and to be fixedly connected with a boat. Through the technology, the hoisting frequency of a gantry crane is reduced during the hoisting process, the hoisting time is reduced, and the hoisting efficiency is improved; the construction on the platform enlarges the usable operating region, and simultaneously the construction is more convenient and securer.

Description

technical field [0001] The invention relates to a shipbuilding process, in particular to a process for manufacturing a hatch coaming and a hatch cover that reduces high-altitude operations and facilitates precision control. Background technique [0002] In the existing shipbuilding process, the making of the hatch coaming and the hatch cover is all done directly on the dock. Because the hull has a certain height, especially large ships, the hatch coaming and the hatch cover will be constantly carried by the gantry crane, which brings great inconvenience to the manufacture. In addition, in high-altitude operations, especially on water surfaces, it is difficult to control the production accuracy due to natural factors and operational difficulties for operators. Contents of the invention [0003] The invention relates to a manufacturing process of a hatch coaming and a hatch cover which reduces high-altitude operations and facilitates precision control. [0004] In order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B9/00B63B19/14B63B3/54
Inventor 谭杰许融明周颖刘正齐翟毅薛亮
Owner 江苏熔盛重工有限公司
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