CN-116331438-B - Precision control method for sectional installation of positioning pins of container ship and container ship

Abstract

The invention relates to a precision control method for sectional installation of a positioning pin of a container ship and the container ship, which are used for carrying out the positioning pin installation in a sectional stage, and comprise the steps of marking a 150M.K datum line after finishing sectional precision inspection of a transverse compartment; the method comprises the steps of taking a rib bit line perpendicular to a 150M.K datum line as a rib bit datum line, taking the 150M.K datum line and the rib bit datum line to obtain the plane position of a locating pin, taking a hatch coaming plate as a datum to measure and determine the height position of the locating pin, taking the 150M.K datum line as a datum to conduct transverse compartment segmentation total group, conducting compartment cover simulation total group after the accuracy of single compartment covers is qualified, adjusting the distance between locating pin holes of the single compartment covers by taking the actual distance between the locating pins as a datum, cutting allowance adjusting the gap between the single compartment covers as a standard gap, installing the locating pin in a segmentation stage, and conducting compartment cover positioning according to the locating pin. The invention advances the installation stage of the locating pin to the segmentation stage, thereby ensuring the installation precision of the locating pin and shortening the construction period.

Inventors

• DONG JIAWEN
• ZHANG WEI
• CUI ZHI
• XU KAI

Assignees

• 沪东中华造船(集团)有限公司

Dates

Publication Date

20260505

Application Date

20230330

Claims (2)

1. 1. The precision control method for the sectional installation of the positioning pin of the container ship is used for installing the positioning pin in a sectional stage and comprises the following steps of: Step1, after finishing the precision inspection of the cross-compartment section, marking a 150M.K datum line on the cross-compartment section by taking a midship folding seam 150M.K as a datum line, and taking a rib bit line perpendicular to the 150M.K datum line on the cross-compartment section as a rib bit datum line; Measuring and determining the height position of the positioning pin by taking a hatch coaming plate as a reference, wherein if at least two positioning pins exist on the same transverse compartment section, the first positioning pin obtains the plane position by taking the 150M.K reference line and the rib position reference line according to the theoretical position data of the positioning pin, the plane positions of the rest positioning pins are positioned by taking the first positioning pin as a reference, and the positioning precision of the positioning pins is controlled within +/-2 mm; step 3, carrying out transverse compartment sectional assembly by taking a 150M.K datum line as a reference, and controlling the distance of the locating pins between the folding joints when the transverse compartment sectional assembly is carried out, wherein the precision is controlled within +/-3 mm; Step 4, after the precision of the single-piece hatches is qualified, carrying out a hatches simulation total group, and adjusting the distance between the positioning pin holes of the single-piece hatches by taking the actual distance between the positioning pins as a reference, wherein the clearance between the cutting allowance adjusting single-piece hatches is a standard clearance, when the hatches simulation total group is adopted, the clearance between the single-piece hatches is 30+/-2 mm, and the temperature during measurement is lower than 30 ℃; And 5, installing a locating pin in a segmentation stage, wherein the hatch cover is directly installed according to the position of the locating pin, and the hatch cover clearance is controlled to be 30+/-5 mm.
2. 2. A container ship, characterized in that it is constructed according to the method of claim 1.

Description

Precision control method for sectional installation of positioning pins of container ship and container ship Technical Field The invention relates to the field of ship construction, in particular to a precision control method for sectional installation of a positioning pin of a container ship and the container ship. Background In the building process of the container ship, each hatch cover corresponds to one locating pin, and the hatch coaming accessories are required to be installed and marked after being lifted in place due to the insufficient integrity of the hatch coaming accessories in the segmentation stage, and then the hatch coaming is lifted off or lifted for the construction of the hatch coaming accessories, including the installation of the locating pins. Although the installation accuracy of the positioning pin can be ensured in this construction manner, this results in a longer construction period. In order to shorten the construction period, a new construction mode is proposed later, such as the construction mode of the prior art, for example, the construction method research of the locating pin of the hatch cover of the large container, zhang Libing, pages 144-147, and the international maritime forum corpus in 2014, which discloses that the installation time of the locating pin of the hatch cover is moved forward to the total group stage of the cross bulkhead section, so as to shorten the construction period. Disclosure of Invention In order to mount the locating pin in the stage of segmentation and meet the requirement of building precision, the invention provides a precision control method for the segmented mounting of the locating pin of the container and a container ship. The technical purpose of the invention is realized by the following technical scheme: the precision control method for the sectional installation of the positioning pin of the container ship is used for installing the positioning pin in a sectional stage and comprises the following steps of: Step1, after finishing the precision inspection of the cross-compartment section, marking a 150M.K datum line on the cross-compartment section by taking a midship folding seam 150M.K as a datum line, and taking a rib bit line perpendicular to the 150M.K datum line on the cross-compartment section as a rib bit datum line; Step2, obtaining the plane position of the locating pin by using a 150M.K datum line and a rib datum line according to theoretical position data of the locating pin, and measuring and determining the height position of the locating pin by using a hatch coaming plate as a datum; step 3, performing cross-compartment segmentation total assembly by taking a 150M.K datum line as a reference; step 4, after the precision of the single-piece hatch covers is qualified, carrying out hatch cover simulation total groups, and adjusting the distance between the positioning pin holes of the single-piece hatch covers by taking the actual distance between the positioning pins as a reference; and 5, installing a locating pin in a segmentation stage, and directly installing the hatch cover according to the position of the locating pin. Further, in step 2, if there are at least two positioning pins on the same transverse bulkhead section, the first positioning pin obtains a plane position according to the theoretical position data of the positioning pins by using the 150m.k reference line and the rib position reference line, and the plane positions of the remaining positioning pins are positioned by using the first positioning pin as a reference. Further, in the step 2, the positioning accuracy of the positioning pin is controlled within + -2 mm. Further, in the step 3, the distance between the locating pins between the folding joints when the transverse compartment sections are assembled is controlled within +/-3 mm. Further, in step 4, when the hatchcover simulates the total group, the gap between the individual hatchcovers is 30±2mm, and the temperature at the time of measurement is lower than 30 ℃. Further, in step 5, the hatch gap is controlled to be 30+ -5 mm. The invention also provides a container ship which is built according to the precision control method for the sectional installation of the container locating pin. Compared with the prior art, the invention has the beneficial effects that: 1. the invention advances the installation stage of the locating pin to the segmentation stage, thereby ensuring the installation precision of the locating pin and shortening the construction period; 2. for the positioning pins on the same transverse compartment section, the rest positioning pins take the position of the first positioning pin as a reference to perform plane position positioning, so that the possibility of error accumulation is reduced; 3. according to the invention, the hatch cover is subjected to simulation total group through the actual distance between the positioning pins, so that the assembly precision of the subsequ