【摘要】 单叶片螺旋离心泵虽然具有较强的抗缠绕和抗堵塞能力,但由于叶片的非轴对称布置,易导致其质量不平衡,机组在运行过程中,由于叶轮质量不平衡,将产生剧烈振动,引起严重故障。另外,单叶片螺旋离心叶轮的轴向长度与其外径尺寸的比值较大,在进行动平衡试验时,需进行双面配重,且受半开式结构的影响,消除叶轮不平衡量极为困难,阻碍了单叶片螺旋离心泵的推广应用,而传统的和基于模型试验的叶轮配重方法精度均较低,且需消耗大量的时间和精力。提出了基于参数化建模和虚拟样机仿真技术相结合的配重方法,该方法不仅方便快捷、成本低,且精度很高,可推广应用,促进产业发展。更多还原

【Abstract】 Single-blade screw centrifugal pump has strong anti-winding and anti-clogging ability,but the non-axisymmetric structure of blades can lead to mass imbalance which will cause extreme vibrations and serious fault during operation. What’s more,the ratio of axial length to diameter of the impeller is large,and it needs to balance weight on both sides during the dynamic balance test. Eliminating the imbalance of the impeller is extremely difficult because of semi-open structure,which hinders the popularization and application of single-blade screw centrifugal pump. However,the traditional and experiment-model method for impeller counterweight have poor accuracy,and need a lot of time and effort. One modified counterweight method was proposed based on combination of parametric modeling and virtual prototype simulation technology. Due to its convenience,low cost and high accuracy,the method can be generalized and promote industrial development.更多还原