| 摘要 |
PURPOSE:To prevent contact between the primary side and the secondary side of a linear induction motor by a mechanism wherein fixed common magnetic rails to magnets for supporting disposed at the on-car side and the primary side or the secondary side of the linear induction motor are arranged at the ground side. CONSTITUTION:A row of magnets 12 for supporting and the primary side 13 of a linear induction motor are arranged on a straight line in the progressive direction at the on-car side. Common magnetic rails 14 functioning as magnetic rails for supporting to the magnets 12 for supporting and the secondary side to the primary side 13 are mounted at the ground side. The magnetic pitches of the magnets 12 for supporting are halved to magnetic pole pitches at the primary side while the common magnetic rails 14 are formed by laminated cores 15 and cage type secondary circuits 16, and the secondary circuits 16 are made up to ensure that a winding factor to a progressive magnetic field at the primary side 13 is approximate 1. Thus, braking force does not work among the secondary circuits 16 and the magnets 12 for supporting. Vertical sucking force amont the primary side 13 and the secondary circuits 16 functions as supporting force. |
