Locating mounting method for rudder carrier base on ship

Abstract

The invention relates to a method for positioning and mounting a rudder carrier substrate in a vessel, which includes the following steps: (1) an upper rudder carrier substrate, a rudder stock bearing chock and a rudder pin bearing chock are machined in a workshop. The margin of the upper rudder carrier substrate is retained. (2) the rudder stock bearing chock and the rudder pin bearing chock are arranged on a vessel body and have borings, centers line of the rudder stock bearing chock and the rudder pin bearing chock is made to be the central line of the rudder stock. (3) The upper rudder carrier substrate is roughly positioned on the vessel. The distance between the upper plane of the upper rudder carrier substrate and the upper plane of the rudder pin bearing chock is measured. The margin of the upper rudder carrier substrate is cut. (4) After the distance between the upper plane of the upper rudder carrier substrate and the upper plane of the rudder pin bearing chock is precisely measured, the upper rudder carrier substrate is welded on the deck plane of a steering gear room; (5) the positioning work of the upper rudder carrier substrate is finished through welding. The method for positioning and mounting a rudder carrier substrate in a vessel in the invention transfers the work originally processed on the vessel body to the workshop, thus greatly increasing the precision and efficiency of the machining, reducing the application of great amount of special equipment and increasing the boring efficiency, therefore, the speed of constructing the whole vessel is increased.

Description

technical field [0001] The invention relates to shipbuilding, in particular to a method for positioning and installing a rudder support base on a ship, especially a 74,500-ton bulk carrier. Background technique [0002] In shipbuilding, the rudder system is installed and positioned, and machining work is generally done on the hull. Taking the installation of the rudder system of a 74,500-ton bulk carrier as an example, the rudder system supporting the rudder stock mainly includes the upper rudder bearing base, the rudder stock bearing seat and the rudder pin bearing seat. The arrangement on the ship is shown in Figure 1. 1 is a schematic diagram of the rudder system layout of a 74,500-ton bulk carrier. [0003] In the prior art, the boring of the rudder system of a 74,500-ton bulk carrier generally needs to be divided into two sets of borings. What needs to be processed are the upper surface and inner circle of the upper rudder bearing base; the inner circle of the rudder ...

AI Technical Summary

Problems solved by technology

[0004] Since the center line of the processed rudder stock bearing seat and the center line of the rudder pin bearing seat should be used as the reference for the second platooning, and the machining accuracy of the rudder support base is relatively high, it is troublesome to perform machining work on the hull, such as machining The installation and disassembly of the equipment is cumbersome. In addition, the base of the rudder bearing needs to have 18 bolt holes that need to be drilled together with the rudder bearing, and 9 of them belong to reaming holes. Processing quality is difficult to be guaranteed

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