Resistance and noise reduction type insulator and high-speed train pantograph with same

Abstract

The invention discloses a resistance and noise reduction type insulator and a high-speed train pantograph with the same, the insulator is located at the bottom of the pantograph, and a mounting underframe of the pantograph and a train roof are assembled together; the insulator has an elliptical cylindrical cross section, a long axis facing the incoming flow direction, and a short axis perpendicular to the incoming flow direction. The pantograph insulator adopts a centered through hole design, and centered through holes are symmetrically distributed along the central axis and penetrate through the whole insulator; the pantograph mainly comprises a carbon slide plate, a pantograph corner, a support rod, an upper arm, an insulator and the like, the carbon slide plate adopts a rectangular cross section design, and four edges on two sides of a windward side and a leeward side of the rectangular cross section adopt a fillet design. According to the invention, the pulsating pressure on the surface of the pantograph can be effectively reduced, the aerodynamic resistance and noise generated by the whole pantograph are obviously reduced, the original structure of the pantograph is reserved to the greatest extent, and the related structure is simple to manufacture and easy to realize.

Description

technical field [0001] The invention belongs to the technical field of electrified railway locomotives, and particularly relates to a drag-reducing and noise-reducing insulator and a high-speed train pantograph with the same. Background technique [0002] With the rapid improvement of high-speed train-related technologies, the convenience, speed, comfort and safety of high-speed trains attract more and more passengers to choose high-speed trains as a travel tool. However, with the gradual increase of the running speed of high-speed trains, the aerodynamic noise problem caused by this has gradually become a major problem that cannot be ignored in the process of train operation. The noise generated by high-speed trains during operation is mainly divided into three categories: electrical noise, wheel-rail noise and aerodynamic noise. Aerodynamic noise is caused by the interaction of various components and air on the shape of the high-speed train during the operation of the hig...

AI Technical Summary

Problems solved by technology

At present, some scholars reduce the resistance during train running by adding a shroud to the pantograph, and some scholars reduce the noise during operation by adding zigzag stripes to the surface of the pantograph support rod, but these methods reduce the Therefore, it is urgent to improve the flow field characteristics and aerodynamic noise characteristics around the pantograph by optimizing the corresponding geometric structure, reduce the aerodynamic noise generated by the pantograph, and reduce noise pollution.

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