Manufacturing and mounting method of full-rotating rudder paddle base

Abstract

The invention discloses a manufacturing and mounting method for the foundation of a total-gyration rudder propeller. The method is as follows: a pre-processed steel plate is cut into four pieces of sector-shaped rings of the same size and a welding groove is cut; then a base faceplate is formed and after being annealed the base faceplate is planished with mechanical tools; after testing, the front, back, left and right marks are marked; the upper and lower sections and inner and outer circles of the base faceplate are processed; the scale is removed and the requirement by drawing is satisfied and a seam position should be taken into account simultaneously; after the size is checked, templates are fixed on the base faceplate according to the marks on the faceplate for drilling and facing; just two welding seams are welded on the base faceplate and the inner and outer sides of the left and right base cylinder to avoid full welding; the base is lifted before the total closing of a stern and is positioned well and reinforced after the total closing of the stern; and the level is checked once when one welding seam is welded till the final welding seam is completed in the welding process. The invention adopts the section blanking to displace the integral blanking so as to conserve the material cost and simultaneously overcome the technical problems of the focused stress in the base processing and manufacturing process, the welding distortion, etc..

Description

technical field [0001] The invention relates to a production and installation method of a marine equipment installation base, in particular to a production and installation method of a full-rotation rudder propeller device base for an electric propulsion guard ship. Background technique [0002] Azimuth rudder and propeller devices usually adopt electric propulsion, and electric propulsion is one of the design directions of small and medium-sized ship power devices in the future. The full-turn rudder and propeller device can convert the power of the motor into the best thrust, and the underwater part rotates 360°, so that the propulsion power can be used for ship manipulation, which is simple and efficient. Its advantages are: 1. Since the thrust direction of the propeller can be changed freely, the ship can achieve maximum maneuverability; 2. Since the rudder, stern shaft frame and stern tube are omitted, the shape of the stern is simple and the hull resistance is reduced. ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the characteristics of large thickness (80mm) and large diameter (Φ2520 / Φ3400) of the circular panel of the base of the rudder paddle device, the waste of the remaining material caused by the whole piece of blanking, and the problems of welding secondary deformation and installation deformation. Provides a manufacturing and installation method for the base of a full-turn rudder propeller device

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