Chassis structure of vehicle body of magnetic levitation vehicle

Abstract

The invention discloses a chassis structure of a vehicle body of a magnetic levitation vehicle. The chassis structure of the vehicle body of the magnetic levitation vehicle aims at solving the problems that the existing chassis structures of vehicle bodies of vehicles are large in welding amount, multiple in part and insufficient in strength. The chassis structure of the vehicle body of the magnetic levitation vehicle comprises a square-shaped chassis frame which is formed by two chassis end beams and two chassis side beams through fixed connection; the two chassis side beams are connected through a long floor; the front end and the rear end of the long floor are connected onto the two chassis end beams; the lower portion of the chassis frame is provided with a plurality of groups of sliding platform beams; two ends of every group of sliding platform beams are fixed on the corresponding chassis side beams; the lower surface of every group of sliding platform beams is provided with a guide groove; the connecting positions of the two chassis end beams and the long floor are provided with horizontal damper installing bases. According to the chassis structure of the vehicle body of the magnetic levitation vehicle, the structural stiffness is large, the accuracy of the flatness and straightness of the sliding platform beams is high, the sound insulation effect is good, welding seams are less, and the chassis equipment is convenient to suspend.

Description

technical field [0001] The invention relates to a novel vehicle body underframe structure suitable for magnetic levitation vehicles, belonging to the technical field of rail vehicle manufacturing. Background technique [0002] At present, the chassis of domestic maglev vehicles mostly adopts a frame structure, such as figure 1 As shown, that is, the underframe is a frame composed of welded skeleton beams intersected by crossbeams 12 and longitudinal beams 13. A honeycomb aluminum floor 14 is inlaid in the middle of the frame, and all underframe equipment is suspended on the crossbeams. The part is non-integral. The disadvantages of this scheme are: the rigidity of the car body is relatively weak, the flatness and straightness of the lower surface of the slide beam are not easy to guarantee (because the left and right slides are separated), the sound insulation effect of the car body is not good, and the parts The large quantity and large amount of welding are not conduc...

AI Technical Summary

Problems solved by technology

[0002] At present, the chassis of domestic maglev vehicles mostly adopts a frame structure, such as figure 1 As shown, that is, the underframe is a frame composed of welded skeleton beams intersected by crossbeams 12 and longitudinal beams 13. A honeycomb aluminum floor 14 is inlaid in the middle of the frame, and all underframe equipment is suspended on the crossbeams. The part is non-integral. The disadvantages of this scheme are: the rigidity of the car body is relatively weak, the flatness and straightness of the lower surface of the slide beam are not easy to guarantee (because the left and right slides are separated), the sound insulation effect of the car body is not good, and the parts The large quantity and large amount of welding are not conducive to the implementation of automatic welding. In addition, the static strength and fatigue life of the honeycomb aluminum floor cannot be accurately evaluated

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