华南理工大学学报（自然科学版）
華南理工大學學報（自然科學版）
화남리공대학학보（자연과학판）
Journal of South China University of Technology (Natural Science Edition)
2015年
7期
136-141,146
,共7页
轴向柱塞泵%滑靴副%油膜%热力学特征
軸嚮柱塞泵%滑靴副%油膜%熱力學特徵
축향주새빙%활화부%유막%열역학특정
axial piston pump%slipper pair%oil film%thermodynamic characteristic
采用控制体方法根据能量守恒定律推导并建立了集中参数的轴向柱塞泵滑靴副间隙油膜热力学模型，求解了间隙油膜的瞬时温度。结果表明：滑靴副的轴功损失与柱塞腔压力和缸体转速呈正相关，且轴功损失转化为热能；增加油液内能，引起油膜温度升高，改变了滑靴副与油膜之间的传热速率。滑靴材料选用多元复杂黄铜，其导热率大，热阻较小，起到了良好的散热和耐磨效果。
採用控製體方法根據能量守恆定律推導併建立瞭集中參數的軸嚮柱塞泵滑靴副間隙油膜熱力學模型，求解瞭間隙油膜的瞬時溫度。結果錶明：滑靴副的軸功損失與柱塞腔壓力和缸體轉速呈正相關，且軸功損失轉化為熱能；增加油液內能，引起油膜溫度升高，改變瞭滑靴副與油膜之間的傳熱速率。滑靴材料選用多元複雜黃銅，其導熱率大，熱阻較小，起到瞭良好的散熱和耐磨效果。
채용공제체방법근거능량수항정률추도병건립료집중삼수적축향주새빙활화부간극유막열역학모형，구해료간극유막적순시온도。결과표명：활화부적축공손실여주새강압력화항체전속정정상관，차축공손실전화위열능；증가유액내능，인기유막온도승고，개변료활화부여유막지간적전열속솔。활화재료선용다원복잡황동，기도열솔대，열조교소，기도료량호적산열화내마효과。
A thermodynamic lumped parameter model for oil film in slipper pair clearance of axial piston pump is constructed by means of the control volume method on the basis of the law of conservation of energy , and the instan-taneous temperature of oil film is thus solved .The results show that the shaft work losses of slipper pair are positive-ly correlated with the piston chamber pressure and the cylinder speed , and the losses are converted into heat ener-gy;and that, the increase of internal energy of oil causes oil temperature to rise and changes the heat transfer rate between slipper pair and oil film .In addition, the multi-element complex brass is selected as the material of slip-per , because it has a high thermal conductivity and a low thermal resistance , which results in good heat dissipation and excellent wear resistance .
