A stern shaft equipment outside the engine room

Abstract

The invention relates to a rotating stern shaft device outside the engine room, which is installed on the stern shaft nut on one side of the propeller, and its structure includes a drum, a positioning cylinder, an end cover, a winch, and a steel wire rope. , The roller sleeve is installed on the outside of one end of the positioning cylinder, the end cover is installed on the roller at the other end of the positioning cylinder, the positioning cylinder is movably arranged between the roller and the cover plate, one end of the wire rope is wound on the drum, and the other end of the wire rope is connected to the hoist. Install the positioning cylinder on the stern shaft nut at one end of the propeller through the positioning bolt, so that the roller can rotate relative to the positioning cylinder; screw the transmission bolt into the round hole on the outer circle of the stern shaft nut to fix the roller and the stern shaft nut relatively; The wire rope wound on the drum groove is pulled by the hoist to drive the stern shaft to rotate, and the runout of the stern tube seal is detected. The operation is convenient, the installation is firm, the rotation effect is good, and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of ship building, in particular to a device for rotating a stern shaft outside the engine room. Background technique [0002] The power plant of an ordinary civil ship includes a main engine, an intermediate shaft, a stern shaft, a stern tube, a stern tube seal, and a propeller. Generally, the ship is built in the berth or dock. The stern tube is installed first, and then the stern shaft, stern tube seal and propeller are installed, and then the intermediate shaft and the main engine are hoisted in the engine room, and the intermediate shaft and the main engine are initially positioned; before the ship is launched, It is necessary to rotate the stern shaft to check the runout of the stern seal sleeve, etc., and then adjust and install the main engine and intermediate shaft after the ship is launched. [0003] However, when some ships are built, since the main engine has not been supplied before the ship is ...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem that the main engine cannot be rotated before the ship is launched, the invention provides a device for rotating the stern shaft outside the engine room. On the one hand, it can meet the needs of the stern tube seal runout detection. On the other hand, the operation is simple and fast. Technical purpose of the present invention is achieved through the following technical solutions:

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