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作 者:王鑫 王涛 赵晨 Wang Xin;Wang Tao;Zhao Chen(Deepal Automobile Technology Co.,Ltd.,Chongqing 400020)
出 处:《汽车技术》2023年第10期51-57,共7页Automobile Technology
摘 要:为研究油冷电驱系统的润滑特性,分析了某油冷电驱系统的飞溅润滑特性和极端姿态下低速润滑不良现象,并针对强制润滑和油泵吸空现象进行了分析。结果表明:低速润滑不良、高速润滑良好是飞溅润滑的主要特性,随倾角增大,上坡工况流量逐渐下降,下坡工况相反,左倾20°时无飞溅润滑效果并存在吸油口吸空现象,右倾20°时低速搅油效果差,左、右倾工况下飞溅润滑油量表现相反;强制润滑可综合考虑电机和减速器的流量需求和比例;油泵吸空将导致强制润滑失效,解决吸空问题需同时考虑效率的降低。To study the lubrication characteristics of oil-cooled electric drive system,this article analyzed the splash lubrication characteristics of an oil cooled electric drive system and the phenomenon of poor low-speed lubrication under extreme attitudes,analyzed the forced lubrication and suction phenomenon of oil pump.The results show that the main characteristics of splash lubrication are poor lubrication at low flow rates and good lubrication at high flow rates;As the inclination angle increases,the flow rate shows a downward trend in uphill condition,while the flow rate in downhill conditions is just the opposite;The left tilt of 20°shows no lubrication effect and oil suction port is empty,while the right tilt of 20°shows poor oil stirring effect at low speed,while splash lubrication oil amount at left and right tilt is just the opposite.Forced lubrication can comprehensively consider the flow demand and proportion of the motor and reducer in the electric drive.The risk of empty suction of oil pumps will lead to forced lubrication failure.The solution of empty suction shall also consider the reduction of efficiency.
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