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IC693MDL655LT 如何选择转子的平衡方式,是一个关键问题。其选择有这样一个原则:
只要满足于转子平衡后用途需要的前提下,能做静平衡的,则不要做动平衡,能做动平衡的,则不要做静动平衡。原因很简单,静平衡要比动平衡容易做,省功、省力、省费用。
那么如何进行转子平衡型式的确定呢?需要从以下几个因素和依据来确定:
1.转子的几何形状、结构尺寸,特别是转子的直径D与转子的两校正面间的距离尺寸b之比值,以及转子的支撑间距等。
2.转子的工作转速
关转子平衡技术要求的技术标准,如GB3215、API610、GB9239和ISO1940等。
3.转子做静平衡的条件在GB9239平衡标准中,对刚性转子做静平衡的条件定义为:
如果盘状转子的支撑间距足够大并且旋转时盘状部位的轴向跳动很小,从而可忽略偶不平衡(动平衡),这时可用一个校正面校正不平衡即单面(静)平衡,对具体转子验证这些条件是否满足。在对大量的某种类型的转子在一个平面上平衡后,就可求得剩余偶不平衡量,并除以支撑距离。如果在不利的情况下这个值不大于许用剩余不平衡量的一半,则采用单面(静)平衡就足够了。
IC693MDL655LT
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IC693MDL655LT