Maintenance method of inner hole tubing of adjustable pitch propeller shaft system

Abstract

The invention discloses a maintenance method of an inner hole tubing of an adjustable pitch propeller shaft system, belonging to the technical field of installing a ship adjustable pitch propeller shaft system. The maintenance method comprises the following steps of: removing the first shaft section of the bow end of the variable pitch propeller shaft system from the variable pitch propeller shaftsystem; fixing A section of wire rope at the bow end of the tubing in the inner hole of the variable pitch propeller shaft system; integrally pumping out The inner hole tubing of the adjustable pitchpropeller shaft system out from the stern end of the adjustable pitch propeller shaft system, so that one end of the steel wire rope passes through the inner hole of the adjustable pitch propeller shaft system, and locating the other end of the steel wire rope at the bow end of the adjustable pitch propeller shaft system; Overhauling the inner hole tubing of CPP shaft system; Pulling the wire rope at the bow end of the inner hole tubing of the adjustable pitch propeller shaft system, and pushing the inner hole tubing of the adjustable pitch propeller shaft system at the same time, so that theinner hole tubing of the adjustable pitch propeller shaft system moves from the stern end of the adjustable pitch propeller shaft system to the bow end of the adjustable pitch propeller shaft systemuntil the inner hole tubing of the adjustable pitch propeller shaft system is integrally located in the inner hole of the adjustable pitch propeller shaft system; Removing the wire rope; Installing the first shaft section into the CPP shafting. The maintenance method is simple and easy to operate, and the maintenance cycle is short and the cabin structure does not need to be damaged, thus saving time and labor.

Description

technical field [0001] The invention relates to the technical field of installation of a controllable pitch propeller shafting system of a ship, in particular to a maintenance method for an inner hole oil pipe of a controllable pitch propeller shafting system. Background technique [0002] The pitch control propeller shaft system is usually a hollow shaft, and the inner hole of the shaft system is mainly used to install the oil pipe assembly. For a longer shafting, the oil pipe in the shaft will also be longer. In order to facilitate manufacturing, transportation and installation, the shafting and the oil pipe in the shaft are usually manufactured in sections. When assembling, connect each section of shaft and each section of oil pipe into a whole, so that the oil pipe is located in the inner hole of the shaft system. [0003] Since the shafting is installed in the cabin, the space in the cabin is limited, and it is very inconvenient when the oil pipe in the shaft fails and...

AI Technical Summary

Problems solved by technology

[0005] The above maintenance method needs to destroy the cabin body. After the oil pipe is repaired and installed in the cabin body, the cabin body needs to be repaired, which increases the maintenance cost, and the whole maintenance cycle is long, time-consuming and labor-intensive.

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