Ship stern propelling device based on magnetic force transmission

Abstract

The invention discloses a ship stern propelling device based on magnetic force transmission. The ship stern propelling device comprises an inner magnetic rotor, an isolating device and an outer magnetic rotor. The inner magnetic rotor comprises a shaft, an inner magnet and a clamp, the inner magnet is mounted on the shaft, and axial and circumferential limiting of the inner magnet are achieved through connection of the clamp and a key correspondingly. The isolating device comprises an isolating sleeve, a front bearing, a rear bearing, a stop catch ring and a pressing ring, the isolating sleeve is fixed to a ship body by bolts through the stop catch ring and the pressing ring, and radial supporting of the shaft end point and the two shaft shoulder points is provided by the front bearing and the rear bearing which are arranged in the isolating sleeve. The outer magnetic rotor is composed of an outer sleeve and an outer magnet, the outer sleeve is connected with an outer power machine, and the outer magnet is embedded to the outer sleeve. According to the ship stern propelling device based on magnetic force transmission, the technical problems that an existing propelling device is low in anti-pressure capacity, low in sealing reliability and limited in arrangement space under the severe using environment are solved.

Description

Technical field [0001] The invention belongs to the technical field of marine stern propulsion devices, and in particular relates to a stern propulsion device based on magnetic transmission, which is used to meet the miniaturized propulsion requirements of ships under high pressure-resistant sealing conditions. Background technique [0002] In a ship's propulsion device, the rotor structure needs to maintain flexible rotation and transmit torque on the one hand, and on the other hand, it needs to withstand seawater pressure. The traditional sealing form such as the sealing ring, although its softer material can realize the flexible joint with the rotor and provide pressure resistance, but it increases the rotation resistance, which requires higher power source output; its harder material, although it can It can achieve the purpose of flexible rotation and low friction resistance, but the test shows that its sealing reliability is not high and can only guarantee the short-term sea...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a ship stern propulsion device based on magnetic drive, which solves the technical problems of the existing propulsion device, such as poor pressure resistance, low sealing reliability, and limited layout space in harsh environments.

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