重载车辆传动装置旋转润滑缝隙油道通流特性  

Flow Characteristics of Rotating Gap Oil Duct of Heavy Vehicle Transmission

作　　者：宫燃[1] 刘宇航 张玉东[2] 许晋[2] 张真宇 GONG Ran;LIU Yuhang;ZHANG Yudong;XU Jin;ZHANG Zhenyu(School of Automotive and Traffic Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China;China North Vehicle Research Institute,Beijing 100072,China)

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013 [2]中国北方车辆研究所,北京100072

出　　处：《兵工学报》2022年第12期3000-3007,共8页Acta Armamentarii

基　　金：国家自然科学基金项目(51675238)。

摘　　要：旋转缝隙油道是重载车辆传动装置润滑系统的主要结构形式,传动系统高速旋转时,由于润滑油受到外力的作用,存在润滑油供油不足的风险,需要掌握传动装置润滑系统旋转缝隙油道内各主要参数对旋转缝隙油道通流特性的影响。为此建立旋转缝隙油道通流量的理论模型,探讨润滑系统旋转缝隙油道的润滑机理以及通流特性,分析油液温度、入口压力和旋转缝隙油道转速对润滑流场的影响规律,并利用传动装置旋转缝隙润滑油道试验台进行试验分析与结果验证。研究结果表明:随着转速的增加,靠近入口的3组径向圆管出口流量呈现小幅增加的趋势,而缝隙出口的流量随着转速增加显著减少;入口压力的增大使旋转缝隙油道各出口流量呈现增加的趋势,但缝隙出口流量增加更加显著;通过试验结果与理论计算结果进行对比,表明了车辆传动装置旋转缝隙油道通流量的理论计算模型的有效性,为传动装置润滑系统的精确供油设计提供理论依据。Rotating gap oil duct is the main structure of a vehicle’s transmission lubrication system.However,when the transmission system rotates at a high speed,due to the effect of external forces,there is a risk of the insufficient oil supply.Therefore,it is necessary to investigate the influence of various parameters on the flow characteristics of the rotating gap oil duct in the lubrication system of the transmission.In this study,a theoretical model of the flow rate of the rotating gap oil duct is proposed,and the lubrication mechanism and flow characteristics of the rotating gap oil duct are discussed.The effects of the oil temperature,the inlet pressure and the rotating speed on the lubrication oil flow field are analyzed.The lubricating oil flow test is carried out using the rotating gap oil duct test rig for the transmission lubrication system.It is found that with the increasing input shaft speed,the oil flow at the three groups of the radial outlets near the inlet increases slightly,while the oil flow at the gap outlet decreases significantly;with the increasing inlet pressure,the oil flow at each outlet increases,but the flow at the gap outlet increases more significantly.The test results are consistent with the theoretical calculation results,indicating the effectiveness of the theoretical calculation method for the flow rate in the rotating gap oil duct.The proposed method provides a theoretical basis for the accurate oil supply design of the transmission lubrication system.

关 键 词：车辆传动装置 旋转缝隙油道 通流特性 旋转缝隙油道试验 

分 类 号：TH117[机械工程—机械设计及理论]