Ship shafting alignment technology with permanent magnet type journal-sticking shaft generator

Abstract

The invention discloses a ship shafting alignment technology with a permanent magnet type journal-sticking shaft generator. The ship shafting alignment technology comprises the steps that S1, a theoretical value is calculated according to a shafting alignment calculation sheet; S2, a permanent magnet is temporarily removed from a rotor shaft of the permanent magnet type journal-sticking shaft generator, a shafting state at the time is adjusted to meet a shafting state without the permanent magnet on the shafting alignment calculation sheet firstly, and then the stator end position of the permanent magnet type journal-sticking shaft generator is adjusted, so that the centerline of the stator end is consistent with the centerline of the rotor shaft; and S3, the permanent magnet is mounted onthe rotor shaft, the stator end of the permanent magnet type journal-sticking shaft generator is finely adjusted, and the shafting state is made to meet the final shafting state on the shafting alignment calculation sheet. The mounting quality of a ship shafting is met, the construction cost of a shipyard is saved, and meanwhile, the shipbuilding cycle of the shipyard is reduced.

Description

technical field [0001] The invention belongs to the technical field of installation of ship equipment, and in particular relates to a ship shaft alignment process with a permanent magnet shaft-holding shaft generator. Background technique [0002] In the new generation of 10,000-ton ro-ro ships, permanent magnet shaft-holding shaft generators are more and more favored by ro-ro ship designers because of their compact structure, outstanding efficiency, low rotor inertia and low weight. However, permanent magnet shaft-holding shaft generator manufacturers have strict requirements on the installation distance between the stator and rotor. Once the requirements are not met, the shaft generator will not be able to generate electricity normally during the ship's navigation; The end face of the stator and the end face of the rotor of the shaft-holding shaft generator cannot guarantee that they are in the same gap on the entire circumference, so there will be a permanent magnetic for...

AI Technical Summary

Problems solved by technology

However, due to the existence of the permanent magnetic force, the rotor shaft has been undergoing displacement changes in all directions during the adjustment process with the change of the magnitude and direction of the permanent magnetic force, and the state of the entire shaft system has been changing with the change of the permanent magnetic force. Changes, on-site workers have to go through many repeated adjustments to install the shafting in place, and on the new generation of 10,000-ton ro-ro ships, the lightest shaft will also weigh several tons, the workload of on-site workers is very large and the cycle longer

Images