机床与液压
機床與液壓
궤상여액압
Machine Tool & Hydraulics
2015年
18期
18-23
,共6页
聚四氟乙烯%接触表面位移%热弹性%油膜厚度
聚四氟乙烯%接觸錶麵位移%熱彈性%油膜厚度
취사불을희%접촉표면위이%열탄성%유막후도
Polytetrafluoroethylene%Contact surface displacement%Thermoelasticity%Film thickness
以摆动马达为例,研究了摆动马达叶片与缸套接触处动密封的油膜厚度。针对该处组合式密封结构建立了一个数学模型,通过计算各部分的变形量从而计算出密封间隙的油膜厚度。该数学模型中考虑了密封压力、相对滑行速度以及密封件的物理特性等对油膜厚度的影响,从而为动密封性能的改进提供依据。
以襬動馬達為例,研究瞭襬動馬達葉片與缸套接觸處動密封的油膜厚度。針對該處組閤式密封結構建立瞭一箇數學模型,通過計算各部分的變形量從而計算齣密封間隙的油膜厚度。該數學模型中攷慮瞭密封壓力、相對滑行速度以及密封件的物理特性等對油膜厚度的影響,從而為動密封性能的改進提供依據。
이파동마체위례,연구료파동마체협편여항투접촉처동밀봉적유막후도。침대해처조합식밀봉결구건립료일개수학모형,통과계산각부분적변형량종이계산출밀봉간극적유막후도。해수학모형중고필료밀봉압력、상대활행속도이급밀봉건적물리특성등대유막후도적영향,종이위동밀봉성능적개진제공의거。
This paper studies the film thickness of dynamic seals at the contact of vanes and cylinder which are used in swing motor.A mathematical model is established for the combined seal structure,and the film thickness in sealing gap is gotten by calculating the amount of each part’s deformation.The established mathematical model takes these factors,such as sealing pressure,relative sliding velocity as well as the physical characteristics of the seal on the film thickness,into account,which provides evidences for improving the dynamic sealing perform-ance.