煤层气排采螺杆泵定子磨损研究

Research on Wear of Stator of Screw Pump in CBM Drainage

通过对定子橡胶磨损宏观及微观形貌的研究,得出定子橡胶各位置磨损情况及特点。结果显示:在线接触区域(定子圆弧部分)的磨损主要为黏着磨损和磨粒磨损,而在靠近直线段的位置,随着接触几何由线接触变为点接触(直线部分),磨损形式逐渐转变为黏着磨损和疲劳磨损。

Study the wear between the stator of the screw pump in coal bed methane drainage by experiments method. It show the wear characteristic of the stator by the study of the stator rubber macroscopic morphologies and microstructure. It indicate the type of wear are mainly adhesive wear and abrasive wear when the rotor contact stator at the circle while the type of wear are mainly adhesive wear and fatigue wear.