고속철도 감속기유의 열화감지 기술 고찰

The main use of reduction gear oil of the KTX is to protect gear contact surface under considerably high speed and various track conditions from the severe lubrication conditions such as vibration, water and particulate contaminants, and temperature variation due to outdoor weather conditions. However, as time goes by, the severe lubrication conditions accelerate the degradation of the gear oil and cause the wear or damage of gear tooth contact surface. Therefore, the reduction gear oil of the high speed train has to be analyzed periodically. In this study, technology trend of oil aging monitoring has been investigated. Also, by using commercial oil sensors, feasibility study for adapting the sensors to the existing reduction gear unit of the high speed train has been performed.