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一、问题的提出双作用式叶片泵的定子内表面,一般由四段与转子同心的工作曲线和四段过渡曲线组成。而过渡曲线的性质将直接影响到叶片泵流量的均匀性、叶片运动的平稳性和有关表面的磨损状况。因此,可以说定子曲线的问题主要是过渡曲线的问题。在我国,双作用式叶片泵,目前采用的过渡曲线一般为下述两种:一种是保证叶片的径向加速度按等加速、等减速规律变化的曲线——抛物线型;另一种是由圆弧及其切线组合成的曲线——半缓和曲线型。有些资料曾对修正的阿基米德螺线和正弦曲线等做过论述,
First, the issue put forward Double-acting vane pump stator inner surface, generally by four sections and the rotor concentric working curve and four transition curves. The nature of the transition curve will directly affect the uniformity of the flow of the vane pump, the stability of the blade movement and the surface wear status. Therefore, it can be said that the problem of the stator curve is mainly the problem of the transition curve. In our country, the double-acting vane pump, the transition curve currently used is generally the following two kinds: one is to ensure that the radial acceleration of blades according to equal acceleration, deceleration and other changes in the curve of the curve - parabolic type; the other is from Arc and tangent of the combination of the curve - semi-mild curve. Some data have been discussed on the modified Archimedes spiral and sinusoidal, etc.,