砂轮在运转条件下的平衡技术日益得到推广和应用,其装置主要由平衡头和选频测振系统组成,前者用于对砂轮进行配重补偿,后者用于检测砂轮的不平衡量。因此,选频测振系统的选频特性和工作性能直接影响砂轮的平衡精度。砂轮失衡产生的离心力是砂轮架强迫振动的主要振源之一。当离心力激振时,砂轮架 The balancing technology of the grinding wheel under running condition is increasingly popularized and applied. The device mainly consists of a balance head and a frequency-selective vibration measuring system. The former is used to compensate the weight of the grinding wheel and the latter is used to detect the unbalance of the grinding wheel. Therefore, the frequency selection vibration measurement system frequency selectivity and performance directly affect the wheel balance accuracy. Wheel imbalance centrifugal force generated by the wheel frame forced vibration of one of the main sources. When centrifugal force exciting, wheel frame