Bulbous bow positioning tool and positioning and installing method of bulbous bow

Abstract

The invention discloses a bulbous bow positioning tool and a positioning and installing method of a bulbous bow, and relates to the field of ships. The positioning tool comprises a prefabricated platform, a base and a soft lining. The bulbous bow is placed on the upper side of the soft lining. The shape of the soft lining is matched with that of the bulbous bow. A movable device is arranged at thebottom of the prefabricated platform. The method includes the steps of S1, drawing a central line, an elevation line and a frame space line on each of the prefabricated platform, a ship body structure and the bulbous bow; S2, hoisting the bulbous bow on the soft limiting, and moving the bulbous bow to the butt joint position of the ship body structure and the bulbous bow; S3, drawing an installation position of an electronic device in the bulbous bow; S4, moving out the bulbous bow, and installing the electronic device at the installation position of the electronic device; S5, welding the bulbous bow and the ship body structure. The bulbous bow can be placed on the positioning tool, measurement is convenient, safety is high, the electronic device can be installed before the bulbous bow ismounted on a ship, and the advanced outfitting efficiency can be easily improved.

Description

technical field [0001] The invention relates to the field of ships, in particular to a bulbous bow positioning tool and a bulbous bow positioning and installation method, which is suitable for bulbous bow installation of surface ships. Background technique [0002] At present, the hoisting method is usually used in domestic and foreign bulbous bow positioning and installation methods. The basic process of hoisting and positioning is as follows: the bulbous bow is regarded as a segment, and a single crane or multiple cranes are used for hoisting. First of all, the bulbous bow is initially positioned, and the bulbous bow is hoisted to the position where it meets the hull structure. After checking the center line, elevation line and rib position line, draw the margin lines of the bulbous bow and the hull structure respectively , after removing a certain distance, cut the allowance; lift it again, check the position and try the combination, and formally weld after meeting the re...

AI Technical Summary

Problems solved by technology

However, this hoisting and positioning method has the following problems: (1) There are many high-altitude operations and great danger; (2) The bulbous bow is easily deformed and damaged during hoisting; (3) It is inconvenient to hoist and measure, and the positioning is difficult ,low efficiency

Moreover, electronic equipment such as communication and positioning are usually installed in the bulbous bow of surface warships, and the installation accuracy is very high. It is difficult to calibrate and locate when hoisting is used, and it is difficult to guarantee the accuracy requirements. The electronic equipment in the bulbous bow can only be installed after the ship

However, the installation of electronic equipment after the bulbous bow is installed on the ship not only has a small installation space and poor construction conditions, but also is not conducive to improving the pre-outfitting rate.

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