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Inner closed type radial flux magnetic transmission mechanism for underwater direct-driven propeller

A technology of radial magnetic flux and magnetic transmission, applied in the direction of permanent magnet clutches/brakes, electromechanical devices, electric components, etc., can solve the problems of regular inspection and maintenance, complex sealing structure and leakage, etc., to avoid overload damage, The effect of simple magnetic steel arrangement and simple process

Inactive Publication Date: 2016-06-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sealing method adopted by the underwater direct-drive propeller mainly adopts rotating dynamic seals such as mechanical seals or lip seals. The structure of this sealing method is complex and there is a certain amount of leakage. Regular inspection and maintenance are required for long-term use

Method used

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  • Inner closed type radial flux magnetic transmission mechanism for underwater direct-driven propeller
  • Inner closed type radial flux magnetic transmission mechanism for underwater direct-driven propeller

Examples

Experimental program
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Effect test

Embodiment 1

[0024] An inner closed radial flux magnetic force transmission mechanism for an underwater direct-drive propeller, which consists of: an outer rotor core 1, a plurality of outer rotor magnets 2, a spacer sleeve 3, a plurality of inner rotor magnets 4, an inner Rotor yoke 5, sealing ring 6, propeller end plate 7, outer rotor end plate 8, propeller prime mover shaft 9, inner rotor end plate 10,

[0025] The inner rotor yoke 5 is fixed with the prime mover shaft 9 of the propeller through the flat key 13, and one end of the outer surface of the inner rotor yoke 5 is processed with a plurality of dovetail grooves I11 in the axial direction. A plurality of dovetail slots I11 are evenly distributed along the outer surface of the inner rotor yoke 5, and a boss is provided at the middle of one end of each inner rotor magnet 4, and the boss of each inner rotor magnet 4 is matched with a fixed device. into the corresponding dovetail slot I11, the outer rings of the plurality of inner ro...

Embodiment 2

[0027] The inner closed radial flux magnetic force transmission mechanism for an underwater direct-drive thruster described in Embodiment 1, the inner rotor yoke 5 is a regular polygonal structure, preferably a regular hexagon, and the inner rotor yoke 5 Dovetail slot I11 is milled in the middle of each outer surface of the rotor, and the inner rotor yoke 5 is made of magnetically permeable metal material.

Embodiment 3

[0029] An internally closed radial flux magnetic force transmission mechanism for an underwater direct-drive propeller described in Example 1, the outer rotor core 1 is made of corrosion-resistant non-magnetic structural steel material, which avoids the use of traditional magnetic materials. The outer rotor is corroded due to exposure to water.

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Abstract

The invention relates to an inner closed type radial flux magnetic transmission mechanism for an underwater direct-driven propeller. According to the inner closed type radial flux magnetic transmission mechanism for the underwater direct-driven propeller provided by the invention, the opening end of the inner circumference surface of an outer rotor iron core (1) is equipped with multiple dovetail slots II (12) along a radial direction; the multiple dovetail slots II (12) are evenly distributed along the inner circumference surface of the outer rotor iron core (1); a piece of outer rotor magnetic steel (2) is matched and fixed in each dovetail slot II (12); an inner rotor end plate (10) is annularly sleeved on the prime motor rotation shaft (9) of the propeller and is fixedly connected with the outer end of an inner rotor magnet yoke (5); an outer rotor end plate (8) is fixedly connected with the outer end of the outer rotor iron core (1); the opening end of an isolation sleeve (3) is equipped with a connection flange plate (16); and the connection flange plate (16) of the isolation sleeve (3) and a propeller end plate (7) are in sealed connection. The mechanism provided by the invention is applied in the underwater direct-driven propeller.

Description

technical field [0001] The invention relates to an underwater direct-drive radial flux magnetic force transmission mechanism. Background technique [0002] The sealing method adopted by the underwater direct-drive propeller mainly adopts rotating dynamic seals such as mechanical seals or lip seals. The structure of this sealing method is complex and there is a certain amount of leakage. Regular inspection and maintenance are required for long-term use. Contents of the invention [0003] The object of the present invention is to provide an inner closed radial flux magnetic force transmission mechanism for underwater direct-drive propellers. The rotor magnet 2 adopts a block structure, and its number of pieces is twice that of the inner rotor magnet 4. The magnetic field formed by it is internally closed, so that there is no magnetic field leakage outside the outer rotor. The spacer 3 static sealing structure is adopted between the inner and outer rotors to realize no leaka...

Claims

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Application Information

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IPC IPC(8): H02K49/10H02K7/10
CPCH02K49/102H02K7/10
Inventor 赵博徐永向赵文峰邹继斌王骞王宝超李勇尚静胡建辉
Owner HARBIN INST OF TECH
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