Anti-bending composite insulator of bullet train roof

Abstract

The invention relates to the field of bullet trains, in particular to an anti-bending composite insulator of a bullet train roof. The anti-bending composite insulator of the bullet train roof comprises a supporting body, wherein a plurality of umbrella skirts are arranged around the side wall of the supporting body and arrayed side by side in the axial direction, the umbrella skirts protrude out of the side wall of the supporting body in the radial direction, and the supporting body is a high-strength glass fiber epoxy resin bar. The composite insulator is good in acid, alkali and salt resistance and bending resistance, and the bending resistance is larger than 16KN. Preferably, the upper end of the supporting body is provided with an upper fitting used for being connected with a conducting rod, and the upper fitting is assembled at the upper end of the supporting body through a special device in an annular compression joint mode. The lower end of the supporting body is provided with a lower fitting used for installing the composite insulator on the bullet train roof, and the lower fitting is assembled at the lower end of the supporting body in a high-pressure compression joint mode. The composite insulator is good in shock resistance, impact resistance and brittle fracture resistance and can operate in various climates, working conditions and environments.

Description

technical field [0001] The invention relates to the field of motor vehicles, in particular to a bending-resistant composite insulator for the roof of a motor vehicle. Background technique [0002] With the opening of the world's first high-speed railway, Japan's Tokaido Shinkansen, on October 1, 1964, the development of high-speed EMUs has become increasingly widespread. After more than 40 years of continuous development, three technical systems of high-speed EMUs represented by the Japanese Shinkansen, the German ICE and the French TGV have basically been formed. Starting from the actual needs of each country, EMUs in each country have their own characteristics, which have played a very positive role in the development of high-speed railways in the world. [0003] France began to study TGV-PSE since 1976, and it was put into use in September 1981. In May 1990, the TGV-A325 train set reached a running speed of 515.3km per hour on the Atlantic line, creating a world record ...

AI Technical Summary

Problems solved by technology

[0008] However, since the motor car needs to operate safely in various climates, working conditions, and environments, the acid resistance and bending resistance of the composite insulator on the roof of the motor car are relatively high. However, the acid resistance and bending resistance of the existing composite insulators on the roof of the motor car The characteristics are difficult to meet the requirements, and it does not have good shock resistance, impact resistance and brittle fracture resistance, and it is difficult to adapt to various climates, working conditions, and environments.

[0009] In view of the above problems, there is an urgent need for a motor car roof bending composite insulator to solve the problems of poor acid resistance and bending resistance in the prior art

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