Study on the Degradation State of In-Service Lubricating Oil in High-Speed Train Gearboxes
The high-speed train technology is developing rapidly and the operating mileage is constantly increasing in China.Gearbox is one of the main technologies for high-speed trains.In order to ensure the good working state of the transmission gears,the lubricating oil of the high-speed train gearbox should maintain excellent performance.Monitoring the oil performance of the high-speed train gearbox to determine its condition is an important task to ensure the safe operation of the high-speed train.Two types of high-speed train gearbox oils were selected as the research objects,and their new oil and used oil were analyzed,respectively.Parameters such as oil viscosity,total acid value,particle contamination,elements,friction and wear performance,and extreme pressure performance of the oil samples were analyzed to obtain the performance status of the high-speed train gearbox oils after one oil drain interval,which can provide support for high-speed train gearbox oil monitoring technology.(Charts10 Tables2 References11)
high-speed train gearbox oilparticle matterfriction and wearextreme pressure performance