Manufacturing method of suspended balance rudder for high-speed boats

Abstract

The invention provides a method for manufacturing an underhung balanced rudder of a high speed craft. The connecting reliability of a rudder rod and a rudder blade is high, the weight of the whole balanced rudder can be lightened, and the method particularly meets the requirement on manufacture of the high speed craft with high weight requirement. The method comprises the following steps of (1) designing a rudder blade structural map and a rudder rod structural map; (2) manufacturing the rudder rod according to the rudder rod structural map; (3) manufacturing the rudder blade; (4) connecting the rudder rod with the rudder blade; (5) testing the airtightness of the rudder blade, wherein the rudder rod and the rudder blade are connected through welding the step (4); an outer plate of the rudder blade is divided into a port outer plate and a starboard outer plate and the rudder rod and the rudder blade are welded. Compared with key connection in the prior art, the welding connection is high in reliability; compared with press-fit connection in the prior art, the welding connection has the advantages that other connecting parts are not required, the integral weight of the balanced rudder is lightened, and the requirement on light weight of the high speed craft is met.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a manufacturing method of a suspended balance rudder for high-speed boats. Background technique [0002] The main structural components of the suspended balance rudder include a streamlined rudder blade and a rudder stock. The rudder blade includes port and starboard outer plates that form a streamlined blade surface, and upper and lower seals that close the upper and lower ports of the port and starboard outer plates. plate, and a plurality of horizontal and vertical partitions interlaced vertically and horizontally on the inner wall of the side plate, and one end of the rudder stock is embedded in the interior of the rudder blade and connected to the rudder blade. In the prior art, the rudder stock and the rudder blade are connected by a key or a press-sleeve connection, and the key connection is used. The connection between the rudder stock and the rudder blad...

AI Technical Summary

Problems solved by technology

In the prior art, the rudder stock and the rudder blades are connected by key or compression sleeve. If the key connection is used, the connection reliability between the rudder stock and the rudder blade is poor, easy to wear, and there are hidden dangers of accidents; the compression sleeve connection requires the use of bushings, etc. Steel castings are heavy and costly, and are not suitable for the production of light high-speed boats

Images