BEARING ANALYSIS DEVICE FOR RAILWAY VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a bearing diagnosis device for a railway vehicle which can suppress the enlargement of the device and the complication of wiring even if a bearing for one vehicle becomes a diagnosis object, and does not need a calculation processing unit which is high in the performance of calculation for diagnosing an abnormality of the bearing.SOLUTION: In order to integrate individual detection outputs of temperature sensors and vibration sensors for one vehicle as a detection output for one vehicle, cables which are connected to the temperature sensors and the vibration sensors attached to an axle of the vehicle, and individual bearings of a drive unit and a main electric motor are coupled and integrated, and connected to an axle sensor input part and a drive/main electric motor sensor input part. Also, in order to dispense with a calculation processing unit which is high in the performance of a calculation capacity for a CPU unit, diagnosis processing is applied to the bearings only when there is a symptom phenomenon in an abnormality diagnosis of the bearings.SELECTED DRAWING: Figure 5