工程设计学报
工程設計學報
공정설계학보
JOURNAL OF ENGINEERING DESIGN
2014年
1期
51-55
,共5页
热楔力%动压效应%滑靴%油膜厚度%功率损失
熱楔力%動壓效應%滑靴%油膜厚度%功率損失
열설력%동압효응%활화%유막후도%공솔손실
thermal wedge force%dynamic pressure effect%slipper%thickness of oil film%power loss
为了分析A11VO190恒功率轴向柱塞泵滑靴副的摩擦特性，建立了剩余压紧力滑靴的数学模型。在考虑由热膨胀引起的热楔力和由阶梯结构引起的动压效应的基础上，根据空间力系平衡原理，利用软件M atlab计算滑靴在排油区的动态特性，得到滑靴在斜盘不同位置的油膜厚度。在此基础上推导出滑靴副摩擦功率损失和泄漏功率损失的计算公式，并对比不同负载压力和主轴转速对油膜厚度和功率损失的影响。结果表明：负载压力增大，油膜厚度减小，功率损失增加；转速增大，油膜厚度增大，功率损失也随之增加。
為瞭分析A11VO190恆功率軸嚮柱塞泵滑靴副的摩抆特性，建立瞭剩餘壓緊力滑靴的數學模型。在攷慮由熱膨脹引起的熱楔力和由階梯結構引起的動壓效應的基礎上，根據空間力繫平衡原理，利用軟件M atlab計算滑靴在排油區的動態特性，得到滑靴在斜盤不同位置的油膜厚度。在此基礎上推導齣滑靴副摩抆功率損失和洩漏功率損失的計算公式，併對比不同負載壓力和主軸轉速對油膜厚度和功率損失的影響。結果錶明：負載壓力增大，油膜厚度減小，功率損失增加；轉速增大，油膜厚度增大，功率損失也隨之增加。
위료분석A11VO190항공솔축향주새빙활화부적마찰특성，건립료잉여압긴력활화적수학모형。재고필유열팽창인기적열설력화유계제결구인기적동압효응적기출상，근거공간력계평형원리，이용연건M atlab계산활화재배유구적동태특성，득도활화재사반불동위치적유막후도。재차기출상추도출활화부마찰공솔손실화설루공솔손실적계산공식，병대비불동부재압력화주축전속대유막후도화공솔손실적영향。결과표명：부재압력증대，유막후도감소，공솔손실증가；전속증대，유막후도증대，공솔손실야수지증가。
To analyze the friction characteristics of slipper pair in A 11VO190 constant power axial piston pump ,a mathematical model of overclamped slipper was created .In considering the ther-mal wedge force caused by thermal expansion and the dynamic pressure effect caused by step structure ,according to the equilibrium of spatial force system principle ,the slipper's dynamic characteristics in oil delivery region was calculated by the software Matlab ,and the thickness of oil film at different position of the swash plate was obtained .The formula of friction power loss and leakage power loss was then deduced ,and the effects of load pressure and spindle turning speed on film thickness and the power loss were compared .It is shown that the thickness decrea-ses with the increasing of load pressure ,while the power loss is on the contrary .Both film thick-ness and power loss increase with the increasing of turning speed .
