| 摘要 |
The present invention relates to a linear motor-driven, guided independent-wheel truck which assures stable running at speeds of over 217.7950 m/h (350km/h), meaning that the running is stable not only below 217.7950 m/h (350km/h) but also over 217.7950 m/h (350km/h) and wherein a mounting frame is attached via suspension links to the underside of the truck frame in the longitudinal direction, and on said mounting frame is mounted a vehicle coil, which constitutes a linear motor, and guide wheels, with the vehicle coil so positioned that through electromagnetic coupling with the third rail laid in the direction of the longitudinal axis within the track, it is able to drive the truck by the linear motor, and the guides located respectively on the underside of the mounting frame at the front and rear relative to its travel direction and are located for guiding in contact with both sides of the third rail, and by means of said guides, independent wheels, or preferably cylindrical wheels, are fitted to the underside of the truck frame, closer to the longitudinal axis of the truck, in symmetrical positions about the travel direction of said truck frame and elastically attached in the vertical direction but rigidly in the horizontal direction, with said guides and independent wheels respectively located at the front relative to the travel direction and coupled together by guide arms, whereby the intersection of the two guide arms is designed to form a point at a location beyond the guide, on the axis of the direction of the truck's movement and, thus, by adopting independent wheels, and by coupling the independent wheels via guide arms, thereby to provide the function of counteracting a lateral displacement of the truck during running and recovering or reinstating the longitudinal axial position of the truck, and through minimization of the compounding of the freedom of motion in the running truck by the wheel-rail frictional force (creep force), present the occurrence of hunting; and by employing the linear motor drive system, a truck with stability during fast running and no difficulty of adhesion drive can be realized. |
