Synchronous rising and falling system of high-temperature superconducting maglev train and field cooling method

Abstract

The invention discloses a synchronous rising and landing system of a high-temperature superconducting maglev train and a cooling method. The synchronous rising and landing system comprises a synchronous rising and landing unit and an auxiliary supporting mechanism. In the field cooling process of the high-temperature superconducting maglev train, synchronous field cooling of a plurality of suspension Dewares can be achieved, the positioning precision between the suspension Dewares and a permanent magnet track is effectively improved, the defects of unbalanced bearing performance distribution, suspension force attenuation, transverse drifting, side rolling and the like caused by vertical and transverse positioning errors and asynchronous field cooling are overcome, the suspension guiding performance, stability, reliability and safety of the distributed and large-bearing-capacity high-temperature superconducting maglev train are improved, and the system and method have high application value in the fields of high-speed electromagnetic emission and maglev transportation.

Description

technical field [0001] The invention relates to the field of maglev trains, in particular to a high-temperature superconducting maglev train synchronous landing system and a field cooling method. Background technique [0002] In the course of the development of social civilization, human beings have never stopped pursuing speed. The maximum commercial operating speed of high-speed trains has reached 350 km / h. Further speed increase will be limited by the adhesion force of wheels and rails. Maglev trains use magnetic force to achieve contactless Support and guide, so as to obtain higher operating speed. Japan's low-temperature superconducting electric maglev train has achieved the highest test speed of 603 km / h, and the "hyperhigh-speed rail" in the United States has realized the manned test in a low-pressure pipeline for the first time, and its theoretical speed can reach 1,000 km per hour. The test prototype vehicle rolled off the production line in Qingdao. In addition, t...

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Problems solved by technology

At present, the relevant devices and field cooling technology are mainly based on small-scale, basic experimental research in the non-free suspension state. In the application of high-temperature superconducting maglev trains, there is a lack of automatic control systems dedicated to field cooling of high-temperature superconducting maglev trains. The technical solution adopts standard parts support or non-synchronous lifting mechanism to manually locate and lift the spatial position of the suspended Dewar, which has a large position control error. At the same time, it is difficult to ensure the cooling of the synchronous lifting field under the distributed placement of the suspended Dewar

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