Electromagnetic permanent magnetic hybrid levitation control type maglev train anti-suction device and maglev train

Abstract

The invention discloses an electromagnetic and permanent magnet hybrid suspension control type maglev train anti-tight-attraction device and a maglev train. The electromagnetic and permanent magnet hybrid suspension control type maglev train anti-tight-attraction device disclosed by the invention comprises a press contact switch, a hook, a spring and a magnetic circuit connecting block, wherein the press contact switch is internally embedded at the upper end part of a magnet yoke of an electromagnet; the hook is arranged on the outer side of the magnet yoke of the hybrid electromagnet; and the spring is arranged under the hook, and is used for connecting the hook and the magnetic circuit connecting block. The electromagnetic and permanent magnet hybrid suspension control type maglev train anti-tight-attraction device has a retracted state and a triggered state, when the press contact switch is not pressed, the electromagnetic and permanent magnet hybrid suspension control type maglev train anti-tight-attraction device is in the retracted state, and the magnetic circuit connecting block is hooked out by the hook, so that the magnetic circuit connecting block is located on the outer side of a left magnet yoke or the outer side of a right magnet yoke; and when the press contact switch is pressed, the electromagnetic and permanent magnet hybrid suspension control type maglev train anti-tight-attraction device is in the triggered state, the hook releases the magnetic circuit connecting block, and the magnetic circuit connecting block on the left magnet yoke and the magnetic circuit connecting block on the right magnet yoke are connected with the left magnet yoke and the right magnet yoke of the electromagnet at the lower ends of the yokes. Through the adoption of the electromagnetic and permanent magnet hybrid suspension control type maglev train anti-tight-attraction device disclosed by the invention, the phenomenon of tight attraction can be avoided under electromagnetic and permanent magnet hybrid suspension.

Description

technical field [0001] The invention relates to the technical field of maglev trains, in particular to an electromagnetic permanent magnetic hybrid levitation control type maglev train anti-deadlock device. The utility model also relates to a maglev train with the above-mentioned electromagnetic permanent magnetic hybrid levitation control type maglev train anti-sucking device. Background technique [0002] Maglev transportation is a low-noise and carbon-free transportation, and it is one of the important directions for future urban transportation development. Most of the maglev trains adopt the suction suspension design, which has the advantages of small turning radius, strong climbing ability, low noise, comfortable ride and safety. At present, the maglev device of the suction type maglev train mainly contains three types: 1, single use electromagnet to generate levitation force; 2, adopt electromagnet and superconductor to produce levitation force together; 3, adopt elec...

AI Technical Summary

Problems solved by technology

Its disadvantage is that it consumes a lot of energy and has limited load capacity; the method of using electromagnets and superconductors to generate levitation force is currently only relevant in the laboratory; its disadvantage is that it needs to consume a large amount of liquid nitrogen for operation, and the operation and maintenance costs are high.

Therefore, it is an economical and practical way to use the electromagnet and the permanent magnet to generate the levitation force together. The permanent magnet is arranged in the electromagnet, but the problem of this kind of electromagnetic permanent magnetic hybrid levitation is: the gap between the electromagnet and the track A certain distance must be maintained. If the distance is too large, the levitation force generated by the permanent magnet will change too much with the air gap, which will increase the difficulty of controlling the electromagnet. If the distance is too small, the magnetic force generated by the permanent magnet will easily suck the train to death.

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