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Marine Electromagnetic Actuator

An electromagnetic actuator, marine technology, applied in the direction of shock absorber, magnetic spring, spring/shock absorber, etc., can solve the problems of long time delay, poor heat dissipation performance, small actuator output force, etc., to improve heat dissipation effect of ability

Active Publication Date: 2017-10-24
CHINA SHIP DEV & DESIGN CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inertial electromagnetic actuator has the following disadvantages: the electromagnetic force coefficient is small, the output force of the actuator is small, the heat dissipation performance is poor, and the engineering application is limited; the time delay is long, and the time between the control signal and the output active control force long delay

Method used

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  • Marine Electromagnetic Actuator
  • Marine Electromagnetic Actuator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see figure 1 and figure 2 , a marine electromagnetic actuator, comprising an annular magnetic steel support body 2 and an annular magnetizer 1; the cross section of the magnetizer 1 is U-shaped, and the heights of the two ends of the U-shaped magnetizer are inconsistent; one end of the magnetizer 1 is connected to the magnetic The steel support body 2 is connected, and the other end of the magnetizer 1 and the magnetic steel support body 2 are successively provided with a coil frame 5 and a permanent magnet 3, and the permanent magnet 3 is fixedly connected with the magnetic steel support body 2; the coil frame 5 is wound with Coil 4, there is a gap between the coil 4 and the permanent magnet 3; the coil skeleton 5 is connected to the force transmission frame 6; the permanent magnet 3 is spliced ​​by a plurality of permanent magnet units, and the whole is ring-shaped, placed on the magnetizer 1 and the magnetic steel Between the support body 2; multiple permanent magn...

Embodiment 2

[0036] Embodiment 2 is different from Embodiment 1 in that there are two permanent magnets, which are arranged on both sides of the actuator; each permanent magnet is spliced ​​by multiple permanent magnet units, and is an arc structure; each A permanent magnet corresponds to a coil and a coil bobbin.

Embodiment 3

[0037] Embodiment 3 is different from Embodiment 1 in that there are multiple permanent magnets, the permanent magnets are uniformly distributed in the circumferential direction, and there are gaps between adjacent permanent magnets. The permanent magnets are evenly arranged along the circumferential direction to ensure more uniform magnetism and further enhance the actuator's operating force; the use of multiple permanent magnets can better control the curvature of the magnetic steel and ensure that it fits better with other structures. When a certain permanent magnet fails, it only needs to be replaced, and the operation is very convenient.

[0038] The invention has the advantages of compact structure, high rigidity, small structural flux leakage, and the uniform distribution of permanent magnets along the circumferential direction can enhance the output force; the permanent magnet adopts a multi-piece splicing method, which can make its magnetism more uniform and convenient...

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Abstract

The invention discloses an electromagnetic actuator for a ship. The electromagnetic actuator comprises a ring-shaped magnetic steel supporting body and a ring-shaped magnetizer, wherein the section of the magnetizer is U-shaped; one end of the magnetizer is connected with the magnetic steel supporting body; a coil framework and magnetic steel are sequentially arranged between the other end of the magnetizer and the magnetic steel supporting body; a coil is winded around the coil framework; a clearance is formed between the coil and the magnetic steel; the coil framework is connected with a force transfer frame; first spring sheets and second spring sheets are respectively arranged on the two sides of the force transfer frame; the first spring sheets are connected with the magnetizer; the second spring sheets are connected with the magnetic steel supporting body; a first baffle is arranged outside the magnetic steel supporting body; a second baffle is arranged outside the magnetizer; a first air vent is arranged on the magnetizer; and a second air vent is arranged on the magnetic steel supporting body. The electromagnetic actuator provided by the invention is good in heat dissipating effect, high in electromagnetic force coefficient and large in activation force.

Description

technical field [0001] The invention relates to a longitudinal active control device of a ship's propulsion shafting, in particular to a ship's electromagnetic actuator. Background technique [0002] Due to the high reliability of passive vibration isolation, passive control is usually used to isolate the vibration source. However, with the continuous development of science and technology, the vibration requirements for the environment and equipment are getting higher and higher, and passive vibration isolation can no longer fully meet people's needs. Therefore, active control of structural vibration through active components has attracted more and more attention. [0003] Actuator is an important device for active vibration control. Its function is to control the vibration response of the system by applying control force to the control object according to the determined control law. Electromagnetic actuators are suitable for occasions with medium and low frequencies and lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F6/00
CPCF16F6/00F16F2222/06
Inventor 黄志伟何雪松徐志云曾革委吴方良
Owner CHINA SHIP DEV & DESIGN CENT
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