Working Condition Analysis and Development of Subway Gearbox Lubricating Oil
As a modern underground transportation vehicle,subway reduces the pressure on the ground traffic.The bogie gearbox is a key component of the subway train,and its working performance directly affects reliability,stability and safety in subway operation.The performance of the lubricating oil of the subway gearbox is a factor that affects the service life of the subway bogie and safety of the vehicle.In this paper,the lubricating parts,working conditions,common failure modes,evaluation methods of lubricating oil in subway gearbox are introduced,and development of subway gearbox lubricating oil is illustrated.Based on investigation on base oil,composite agent and friction improver,the developed lubricating oil for sub-way gearbox is composed of synthetic base oil(mPAO65+adipate),9.0％special composite agent for rail gear oil,and 0.65％friction reducer.The developed lubricating oil has performances equivalent to those of imported gear oil and has pas-sed type test verification of the gear box manufacturer.
subwaygearbox lubricating oilsynthetic base oiltemperature rise test
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