【摘要】 对某型卧螺离心机空载、负载以及高速动平衡机上的螺旋进行了振动测试,分别从幅频图、幅值谱、轴承座中心轨迹分析了卧螺的振动特征,得到了低转速下螺旋径向刚度不对称引起二倍频共振的结论,该结论对于卧螺的防振设计、动平衡具有较强的现实意义。最后给出了负载下卧螺的振动特性。更多还原

【Abstract】 Vibration tests were carried on the characteristics of the decanter centrifuge under no-load, load condition and the screw on the high speed dynamic balancing machine. Amplitude-frequency drawings, amplitude spectrum and the trace of bearing block center were analyzed in each case. At a low rotating speed, the results indicate that the two-times frequency causing by the asymmetrical screw is the main vibration characteristic of the decanter centrifuge. The conclusion have a certain significance for the design and the dynamic balancing technique of the decanter centrifuge. Finally, the characteristics of the centrifuge under load condition are given.更多还原