Method for assembling tracks of permanent magnetism in use for high-temperature superconductor magnetic suspension vehicle

Abstract

The present invention relates to an assembly method of permanent-magnet trackway for high-temperature superconducting magnetic suspension train. It is characterized by that on the magnetic pole gathering frame and every permanent-magnet block the aligned through positioning holes are cut according to the predefined position; making mounting frame whose section form is identical to that of magnetic pole gathering frame be connected with said magnetic pole gathering frame, pushing the permanent-magnet block to predefined mounting position along the mounting frame, making screw bolt be passed through the predefined positioning hole and using said screw bolt to make fixation; filling the magnetic pole gathering frame with full permanent-magnet blocks so as to obtain the trackway unit; using mounting cover and supporting frame to connect all the trackway units.

Description

technical field [0001] The invention relates to an assembly method of a permanent magnet track for a high-temperature superconducting maglev vehicle. Background technique [0002] Following the successful development of the first manned HTS maglev test vehicle in China on December 31, 2000, Germany, Russia and other countries have also manufactured HTS maglev vehicles one after another. This kind of maglev vehicle system in the form of high-temperature superconducting bulk materials not only has the characteristics of no friction and low energy consumption of conventional maglev trains, but also has the unique advantages of simple pollution-free control. This type of high-temperature superconducting maglev experimental vehicle developed in China has accumulatively carried more than 27,000 people in the past six years, running smoothly for as long as 40km, and the overall system performance remains above 95% of the original. In principle, this high-temperature superconductin...

AI Technical Summary

Problems solved by technology

The permanent magnet blocks are fastened and fixed in the pole-gathering frame by multiple screws on both sides. During the fastening and fixing process, due to the strong magnetic force between the permanent magnet blocks, even a jack cannot guarantee that the permanent magnet blocks will not be displaced. And deviation, extremely difficult assembly, low efficiency, poor installation accuracy

After the installation is completed, the tightness and fixation of the permanent magnet block in the magnetic pole frame is not reliable. During the operation, due to vibration and the interaction between the permanent magnet blocks, the permanent magnet block may become loose, which affects the high-speed stability and safety of the maglev train. Running; Second, each track unit is installed and spliced ​​on the support frame

When splicing the new track unit with the track unit already installed on the support frame, due to the strong interaction force between the permanent magnet blocks, it is very difficult to align and close together, the installation efficiency is low, and the joints are uneven and the flatness is not high

The magnetic field of the permanent magnet track suddenly decreases at the bad joint, destroying the continuity of the magnetic field in the direction of the track extension, forming running resistance to the high-temperature superconducting maglev vehicle, and seriously affecting the running stability and speed of the high-temperature superconducting maglev vehicle. The formation of fatal system defects has seriously affected the overall performance of the high-temperature superconducting magnetic levitation vehicle, making it difficult to achieve the theoretical ultra-high speed of the high-temperature superconducting magnetic levitation vehicle

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