YBX系列变量叶片泵,具有节省功率,油液温升较低,工作可靠性较好,连接安装尺寸符合ISO标准等优点,在国内不少行业中得到了应用。但是,该系列泵的噪声较高,不少用户都提出希望降低其噪声的要求。我们在广州机床研究所的协助下,针对YBX型泵在结构上存在不可避免的瞬时流量和调节内力的周期性变化,会引起定子的机械振动,从而产生噪声这一原因,采取了一些措施,对定子轴 YBX series variable displacement vane pump has the advantages of saving power, lower temperature rise of oil liquid, better working reliability and connection and installation dimensions conforming to ISO standards. It has been applied in many industries in China. However, the pump noise is high, many users have put forward the hope of reducing the noise requirements. With the help of Guangzhou Machine Tool Research Institute, YBX type pump has the inevitable instantaneous flow in the structure and adjusts the periodic change of internal force, which will cause the mechanical vibration of the stator, so as to produce noise. Some measures are taken, On the stator shaft