LYC Run-up for the First Chinese Standard Metro Train
On June 28th a blue-white-yellow metro train 's slow exit ' from the workshop of zhengzhou zhongche sifang rail vehicle co., ltd. in xingyang-the first chinese standard metro train to be driven off by LYC bearings ! This is the first vehicle product born under the technical platform of China ' s standard subway train, and also the first standard subway project for demonstration and application, which marks a major breakthrough in the field of subway vehicle technology in China.
Bearing is the key component of metro vehicles. The bearing used in the first standard metro train in China is provided by the shaft. As a well-known domestic bearing R & D and manufacturing enterprise, Luo shaft has long been engaged in the maintenance and manufacturing of subway bearings, and has certain R & D, maintenance, manufacturing and other technical accumulation. It has a professional technical R & D team of subway bearings, and has first-class domestic technology, equipment and R & D and manufacturing capabilities in the stable mass manufacturing of subway bearings.
The research and development of the roller bearing is carried out in parallel with the serialized Chinese standard subway train test project, led by China Zhongche, which fully adopts the positive independent design concept and has completely independent intellectual property rights. Since 2018, the size and structure type of bearing interface have been determined according to the vehicle design framework and technical requirements. According to the working conditions and technical analysis, a total of A type axle box bearing design and B type axle box bearing design are provided. At the same time, combined with the high transmission accuracy of gearbox output end, the high precision P5 design of bearing is fully integrated into the green environmental protection design concept to meet the design requirements of the main engine. The developed products have been subjected to strict bench tests such as dust prevention, waterproofing, thermal performance and durability. The test results fully meet the requirements of design and train operation, and have the capacity of batch matching.
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