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动平衡机的平衡精度不能满足工件平衡的要求

* 来源 : * 作者 : admin * 发表时间 : 2017-05-17 * 浏览 : 33
动平衡机校正工件不平衡要求超过了动平衡机本身最小可达剩余不平衡量的能力,也就是动平衡机的平衡精度不能满足工件平衡的要求.
Dynamic balancing machine to adjust the imbalance requirements of the workpiece more than the dynamic balancing machine itself can reach the minimum amount of residual unbalance, that is, the balance of dynamic balancing machine can not meet the requirements of the balance of the workpiece
经过平衡的转子在实际使用中会出现明显的振动,这并非转子自身不平衡所引起的,而是由于转子支承轴颈成椭圆或转子结构上存在着刚度的差异引起而产生的高次谐波,电磁激励引起的振动,带叶片转子在旋转过程中产生气涡流的影响,系统的谐振等而引起的.由于电网相连的其他设备频繁启动造成电源波动和噪声的影响或由于支承架滚轮与转子轴颈两者直径相近而产生的拍频干扰.
After the balance of the rotor will appear obvious vibration in actual use, this is not caused by an imbalance of the rotor itself, but because of the harmonic rotor bearing journal into ellipse or rotor structural differences caused by the stiffness caused by the vibration caused by the electromagnetic excitation, with rotor blades in the rotation process of gas vortex the system resonance caused by other devices connected to the grid. Due to frequent start caused by power fluctuation and noise due to frequency interference or support roller and the shaft neck of two similar diameter produced.
由于动平衡机校验无轴颈的转子而使用的工艺芯轴本身的不平衡或芯轴安装与支承处的同轴度误差,以及芯轴与转子配合的间隙误差而造成平衡后的转子在重复装校时或使用时又产生较大的不平衡.
But in the process of using the core shaft itself is not balanced or core shaft installation and support the coaxiality error due to the rotor dynamic balancing machine inspection shaft, and a core shaft and rotor clearance error caused by rotor balance and unbalance produced larger in the school or repeated use.