Method for improving installation precision of guide rails on bulkhead plate of transverse bulkhead

Abstract

The invention discloses a method for improving installation precision of a guide rail on a bulkhead plate of a transverse bulkhead, the method is based on an auxiliary tool, and the auxiliary tool comprises a right-angle part; a rectangular part, the first end of the rectangular part is perpendicularly connected to one right-angle side of the right-angle part, and the second end of the rectangular part extends in the direction away from the right-angle part; the method comprises the steps of arranging wall plates of the transverse bulkhead horizontally; defining a guide rail center line on the wall plate; defining offset lines at predetermined distances on two sides of the center line of the guide rail; placing a guide rail; adjusting guide rail position, when the right-angle point of the right-angle part is aligned with the two offset lines from the two sides of the guide rail respectively, attaching the second ends of the rectangular part to the outer walls of the two sides of theguide rail respectively, wherein the measured fall values of the bottom edge of the rectangular part and the two sides of the guide rail are equal.

Description

technical field [0001] The invention belongs to the field of shipbuilding, and in particular relates to a method for improving the installation accuracy of guide rails on a bulkhead panel of a transverse bulkhead. Background technique [0002] As the current container ships become larger and larger, the sections of the transverse compartments are also increasingly divided. Since the internal levels of the sections of the transverse compartments cannot be completely consistent, there is a margin for the connecting ribs of the guide rails, and the connecting ribs of the guide rails need to be Repair and cutting, and ensure that the installation size accuracy of the guide rail with a length of nearly 20M and a width of 20M is within ±2mm, and there are dimensional and quality problems with the guide rail of the transverse compartment, which requires a large number of scaffolding corrections during the loading stage, resulting in a lot of cost waste and seriously affecting the do...

AI Technical Summary

Problems solved by technology

[0002] As the current container ships become larger and larger, the sections of the transverse compartments are also increasingly divided. Since the internal levels of the sections of the transverse compartments cannot be completely consistent, there is a margin for the connecting ribs of the guide rails, and the connecting ribs of the guide rails need to be Repair and cutting, and ensure that the installation size accuracy of the guide rail with a length of nearly 20M and a width of 20M is within ±2mm, and there are dimensional and quality problems with the guide rail of the transverse compartment, which requires a large number of scaffolding corrections during the loading stage, resulting in a lot of cost waste and seriously affecting the dock. cycle

[0003] In addition, due to the existence of two surfaces in the section of the transverse compartment of a container ship, when the section of the compartment is placed in a horizontal state and the guide rails are installed, there will be two upper and lower wall panels, so the upper and lower panel will be exposed to direct sunlight, resulting in The temperature of the wall panels is inconsistent, and the temperature of the upper panel is much higher than that of the lower panel. According to the principle of thermal expansion and contraction, the upper panel surface will expand more than the lower panel in the direction of width and length. Under the conditions of no direct sunlight, small direct sunlight, and strong direct sunlight, the internal level of the segment will have obvious "convex" changes, resulting in distortion of the horizontal height data after the guide rail is installed

Therefore, the guide rail needs to be carried out in the state of no sunlight or less direct sunlight, so a large number of waiting periods are required

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