Underwater mounting method of ship steering system

Abstract

The invention discloses an underwater mounting method of a ship steering system. The method particularly comprises the following operation steps: S1: pre-mounting: mounting a rudder stock bearing sleeve on a stern, sleeving a rudder stock with a rudder stock lower stop sheath, and fixing a rudder blade at the bottom of the rudder stock, S2: adjustment: adjusting levelness of a ship body by adjusting ballast water after the ship body completely floats on water, S3: hoisting, and S4: debugging. According to the method, part of spare parts are assembled in advance to form a preassembling body; the preassembling body can be quickly mounted after the ship is launched; the mounting efficiency of the steering system is improved; at the same time, the ship floats on the water through a water bodyin a dock; an inclination of the ship body is adjusted through the ballast water; level state maintaining of the ship body is facilitated; since the ship body is located in the dock, the ship body isnot disturbed by an outside water body and is more stable; the mounting difficulty of the steering system is reduced; the method is applicable to the steering system mounting of various ships and is wide in application scope and simple to operate; and the overwater mounting can also be performed.

Description

technical field [0001] The invention belongs to the technical field of ships, and more particularly relates to a method for underwater installation of a ship rudder system. Background technique [0002] The rudder is an important structure that controls the forward direction of the hull. According to the position of the rudder stock axis close to the width of the rudder blade, it can be divided into three types: ordinary rudder, balanced rudder and semi-balanced rudder. Ordinary rudders are also called unbalanced rudders. The rudder area of ​​this kind of rudder is all located behind the axis of the rudder stock. When turning the rudder, the center of the rudder pressure is far away from the axis of the rudder stock. Therefore, a steering gear with a large output power is required to provide sufficient steering torque; Part of the rudder area is located in front of the axis of the rudder stock, and the height of the entire rudder is evenly distributed. When turning the rud...

AI Technical Summary

Problems solved by technology

[0003] When installing the rudder system of a ship, the existing installation operation method is usually installed on the water surface, which requires the use of external equipment to adjust the level of the hull. The construction is difficult, the installation efficiency is low, and the time of entering the water is affected.