China News Service, Beijing, May 28 (Reporter Zhou Yin) The 4,800 sets of "simplified" catenary suspension systems developed and produced by China Railway Electrification Bureau High-speed Railway Electric Company will be sent from Baoji, Shaanxi to Yantong, Jiangsu, on the 28th. The installation and application on the entire line of high-speed rail marks a key step for Chinese standard high-speed rail equipment in the field of independent innovation.
According to the China Railway Electrification Bureau, the domestic high-speed rail catenary suspension system has generally used a multi-country, multi-standard wrist arm structure, which has many components and complex connection structures. In production casting and installation construction, it will cause a small safety margin for positioning space. 1. The problem of tight fastening.
The "simplified" catenary suspension system developed by High-speed Railway Electric Company reorganized the overall structure with "simple, unified and standard" as the design principle, unified technical parameters, simplified the equipment structure, reduced the types of parts, and improved The service life of key parts and components Compared with the original device, the "simplified" catenary suspension system reduces the number of wrist arm parts by 39%, the thread pair by 57%, and the tightening torque type by 50%. However, the stability of product manufacturing and parts The integration level has been comprehensively improved to meet the operational requirements of the high-speed rail power supply system, while also greatly improving the efficiency of construction and operation and maintenance, providing a basis for unified standard equipment and intelligent identification of component failures.
Lin Jian, Chief Engineer of High-speed Railway Electric Company, introduced that Yantong High-speed Railway is the first line in China that adopts simplified products. The products currently used have passed the technical review of China National Railway Group Co., Ltd. Chongli branch line and other lines trial.
Yantong High-speed Railway connects Yancheng City and Nantong City in Jiangsu Province with a design speed of 350 kilometers per hour. "Is of great significance to the promotion of the rejuvenation of Central Jiangsu and Northern Jiangsu. (Finish)