Analysis of lubricating oil demand flow of a torpedo reducer gear
Torpedo reducer has the characteristics of short-time and harsh working conditions.In order to accurately calculate the lubricating oil demand flow of gear during operation,a gear lubricating oil quantity calculation method based on the thermal-elastohydrodynamic(TEHD)lubrication model and the tooth surface gluing theory was put forward.The helical gear TEHD lubrication model was established to obtain the parameters such as the gear rolling speed and the oil film thick-ness of the gear tooth surface,and the thermal generating power of the gear was calculated.Based on the gear solid surface temperature calculated by TEHD lubrication model,combined with the critical temperature of gear bonding,the maximum allowable temperature rise of lubricating oil within the given parameters was determined,and the lubricating oil flow of gear pair was further calculated.Compared with the calculation result of traditional mechanical manual,the calculated oil supply of reducer gear can save 63.8％of oil flow.The experimental results show that this method is more suitable for the calcula-tion of lubricating oil demand flow of reducer gear under short and severe working conditions.
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