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Variable permanent magnet hybrid electromagnetic suspension system

A hybrid electromagnetic and permanent magnet technology, which is applied in electric vehicles, electric traction, transportation and packaging, etc., can solve the problems of increased suspension air gap, increased track cost, and high track accuracy requirements, so as to reduce power consumption and increase control Degree of freedom, the effect of expanding the suspension air gap

Active Publication Date: 2020-03-24
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, due to the energy consumption problem during operation, the further increase of the suspension air gap is affected.
On the other hand, due to the small suspension air gap, the train has high requirements on the accuracy of the track, and the error is generally within 2mm, which increases the cost of the track

Method used

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  • Variable permanent magnet hybrid electromagnetic suspension system
  • Variable permanent magnet hybrid electromagnetic suspension system
  • Variable permanent magnet hybrid electromagnetic suspension system

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Experimental program
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Effect test

Embodiment approach 1

[0018] Embodiment 1: Combining figure 1 and figure 2 The composition of this embodiment includes a guide rail 1, a suspension coil 2, an inner electromagnet core 3, a fastening screw 4, a right-angle connecting plate 5, a movable permanent magnet 6, a movable permanent magnet fixture 7, a rack 8, a gear 9, Motor output shaft 10, disc motor 11 and outer electromagnet core 12. The guide rail 1 is made of soft magnetic material and has an F-shaped structure. The inner electromagnet core 3 and the outer electromagnet core 12 are soft magnetic silicon steel sheet materials, which are combined with the movable permanent magnet 6 to form a U-shaped structure iron core, and the inner electromagnet core 3 and the outer electromagnet core 12 use a right-angle connecting plate 5 Fixed connection with fastening screw 4. The movable permanent magnet 6 is a permanent magnet magnetized in the horizontal direction, and is located in the middle of the inner electromagnet core 3 and the out...

Embodiment approach 2

[0020] Embodiment 2: Combining image 3 and Figure 4 , on the basis of Embodiment 1, the disc motor 11 is changed to a linear motor 15, and the structure of the gear 9 and the rack 8 is canceled, and the movable permanent is directly driven by the linear motor 15 through the linear motor connecting shaft 14 and the fastening nut 13. The magnet fixture 7 drives the movable permanent magnet 6 to move, reduces the motion inertia of the system, improves the dynamic response performance of the system and the positional accuracy of the movable permanent magnet 6 .

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Abstract

The invention provides a variable permanent magnet hybrid electromagnetic suspension system. The variable permanent magnet hybrid electromagnetic suspension system comprises a guide rail, a suspensioncoil, an inner electromagnetic iron core, a fastening screw, a right-angled connecting plate, a movable permanent magnet and an outer electromagnetic iron core; the guide rail is made of a soft magnetic material and has an F-shaped structure; the inner electromagnetic iron core and the outer electromagnetic iron core are made of soft magnetic silicon steel sheet materials, are jointly combined with the movable permanent magnet to form a U-shaped structure iron core, and are fixedly connected through a right-angle connecting plate and a fastening screw; the movable permanent magnet is positioned in the middle of the U-shaped structure iron core and can be driven to move up and down; and the suspension coil is wound on the inner electromagnetic iron core or the outer electromagnetic iron core. The variable permanent magnet hybrid electromagnetic suspension system has the characteristics of low power consumption, large suspension air gap, safety and reliability, and is suitable for the electromagnetic suspension system for the maglev train.

Description

technical field [0001] The invention relates to an electromagnetic suspension system, in particular to an electromagnetic suspension system for a maglev train. Background technique [0002] The maglev train is a new type of non-contact ground rail transportation, which cancels the wheels that traditional vehicles rely on for transmission, thereby realizing non-adhesive traction and non-contact operation. Therefore, it has the characteristics of low noise, low vibration, wide speed range, fast acceleration and deceleration, strong climbing ability, and low maintenance cost. It is also known as an ecologically pure land green vehicle. For the conventional maglev train, the levitation force is all provided by the electromagnet. Since the levitation coil has a certain resistance, the levitation needs to consume a lot of power, so the levitation air gap should not be too large, generally about 8~10mm, otherwise the levitation power It increases proportional to the square of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L13/04
CPCB60L13/04B60L2200/26
Inventor 刘鹏吴钢王义金徐沛聪唐佳王静何海涛
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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