U-shaped capsule concave-convex coupling type outer windshield and rail vehicle

Abstract

The invention discloses a U-shaped capsule concave-convex coupling type outer windshield and a rail vehicle. The outer windshield includes a front windshield, a rear windshield, a front mounting seat and a rear mounting seat. The front windshield is connected to the front mounting seat. The rear windshield is connected to the rear mounting seat, and the U-shaped capsule shapes of the front windshield and the rear windshield both have left-right symmetrical straight wall parts and an arc-shaped part between the tops of the straight wall parts, and the straight wall parts include The thickness of the bottom portion decreases gradually, the thickness of the middle portion remains constant, and the top portion of the side thickness gradually decreases from the inner side. The arc portion of the front windshield includes a first arc-shaped front end and an arc-shaped boss section. The front windshield The arc-shaped convex platform section is in contact with the arc-shaped concave platform section of the rear windshield in a concave-convex coupling manner. The outer windshield can realize the smooth connection of the end walls of adjacent car bodies, improve the lateral deformation stiffness of the outer windshield, reduce the vibration of the windshield, reduce the driving resistance of the vehicle, reduce the noise of the passenger compartment, and increase the service life of the product.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a U-shaped capsule concave-convex coupling type outer windshield of a rail vehicle. The invention also relates to a rail vehicle provided with the U-shaped capsule concave-convex coupling type outer windshield. Background technique [0002] As an important component of high-speed trains, the rubber windshield structure of high-speed trains is installed at the junction of the ends of the two carriages, making the surface of the car body smooth and smooth, and playing an important role in reducing drag and noise for high-speed trains. Moreover, the rubber outer windshield has good flexible deformation ability, and can provide displacement between two cars when the train passes through a curve. [0003] Countries such as Japan, France and Germany have relatively early application of windshields, while the structure of windshields in China has developed rapidly, from the rubbe...

AI Technical Summary

Problems solved by technology

Similarly, in the process of optimizing the windshield of Japan’s FASTECH360S EMU, such problems caused by wind pressure loads also appeared. When the train’s running speed exceeds 300km / h, the outer windshield appears upturned.

[0009] Secondly, due to the particularity of the installation position of the outer windshield, its structural deformation and vibration under the action of aerodynamic loads make the aerodynamic force distribution at the end connection of the carriage uneven, which seriously affects the stability of the train operation and the safety of the outer windshield structure.

[0010] Furthermore, when the outer windshield has a large valgus flexion, a large gap is formed between the two car bodies, resulting in a discontinuous connection between the car body and the end of the car, and there is a certain driving resistance, which affects the dynamic performance of the vehicle.

More importantly, the windshield gap outside the vehicle body increases, the vibration of the windshield accelerates, and the huge noise generated by the aerodynamic load is transmitted into the passenger compartment through the gap, affecting the comfort of passengers

Images