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一、节流小孔的作用原理斜盘式输向柱塞液压马达柱塞及沿靴中心均设有节流小孔。该小孔不仅将压力油引到球面和平面间进行润滑，更重要的是，在滑靴端面与斜盘表面间形成能承受一定负载的动力油膜，使滑靴浮起，从而极大地减少两表面间的摩擦，减小二者的磨损，提高其使用寿命?
First, the role of throttle orifice principle Swash plate type plunger hydraulic motor plunger and along the center are equipped with throttle orifice. The small hole not only leads the pressurized oil to lubricate between the spherical surface and the flat surface but more importantly forms a dynamic oil film capable of bearing a certain load between the end surface of the sliding shoe and the swash plate surface to float the sliding shoe so as to greatly reduce two The friction between the surface to reduce the wear and tear of both to improve its service life?