| 摘要 |
A bogie apparatus includes a chassis, rotation bogie parts respectively disposed at both ends of the chassis, and a composite motion bogie part located at a middle portion of the chassis. Each of said rotation bogie parts includes a circular upper inner ring permanent magnet fixed on a lower surface or a bottom surface of the chassis. A first bogie located under the chassis and having a bogie body is also added. A circular lower inner ring permanent magnet disposed on an upper surface or a top surface of the bogie body of the first bogie may be included. The inner ring may have inner and outer diameters substantially identical to those of the upper inner ring permanent magnet, and aligned with the upper inner ring permanent with a predetermined distance therebetween.
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