Method for drawing costal scute in shipbuilding

Abstract

The invention relates to a floor pull-in method in shipbuilding, which includes the following steps: the shape of a floor and a through hole of the floor are cut according to the accuracy requirements of ships; a longitudinal frame is manufactured according to the accuracy requirements; inner hulls are pieced together by welding and the longitudinal frame is installed by welding; a first floor ispulled in the inner hull and is welded to form an inner hull component; the inner hull component is measured and the first floor is rigidly reinforced; a hoisting ring is arranged on the inner hull component; an outside plate component is made and fixed on a moulding bed, a hoisting apparatus is used for hauling the hoisting ring to overturn the inner hull component and to cause the upper throughhole of the floor to be aligned with a longitudinal frame terminal of the outside plate component, and then a second floor of the inner hull component is pulled in; a welding technique is determined,and the inner hull component and the outside plate component are welded to form whole ship sections. On the basis of a single floor pull-in method, the method can further improve the pull-in accuracyof floors, thus greatly reducing the quantity of patches required in shipbuilding in sections and improving the production efficiency of building in sections.

Description

technical field [0001] The invention relates to shipbuilding, in particular to a method for pulling in ribs for shipbuilding. The method is used in straight and segmental manufacturing of ships, which can greatly save repairing plates and improve construction efficiency. Background technique [0002] At present, there are two main rib installation methods commonly used in the ship straight section manufacturing process: [0003] 1. The rib insertion method, that is, the R-shaped incision where the size of the through hole of the rib is larger than that of the face plate of the longitudinal, and then the rib is inserted into the segment of the longitudinal, and finally the repair plate is welded. This traditional assembly method requires a lot of patching, which wastes a lot of steel, welding materials and labor, and the assembly efficiency is low, which reduces the fatigue strength of the hull structure. [0004] 2. Pull-in method of single-sided ribs, that is, the through ...

AI Technical Summary

Problems solved by technology

The above method is the basic step of pulling in single-sided floors. In the practice of shipbuilding, although the method of pulling in single-sided floors has improved compared with the method of inserting ribs, it still cannot meet the requirements of ship construction progress, and has low efficiency and The problem of wasting patch panels requires technical improvement on the pull-in method of single-sided ribs to achieve accurate and efficient construction of ship sections

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