一、为什么会产生相角动平衡机的目的,本来是指示不平衡重量的所在处;也就是说,对於工作物不平衡的角度位置,能藉动平衡机找出。但因动平衡本身的构造关系,火花所指示的位置并不代表不平衡重物所在的角度位置,如玲奋火花式动平衡机,火花所指示的地位一般系属不平衡重物的对向轻端。使用动平衡机的人,对这点必须明确。换言之,这机的相角,亦即火花退後一般为180°。相角的产生,系由於转子在动平衡机上转动及摆动时,转子不仅受不平衡重量的离心力的影响,同时亦受到转子本身的惯性力、空气阻力或摩擦力、以及摇摆架的弹性恢复力等的作用。这几个力 First, why the purpose of generating a phase angle dynamic balancing machine would have been to indicate the location of the unbalanced weight; that is to say, the unbalanced working position can be found by balancing machines. However, due to balancing the structural relationship between itself, the position indicated by the spark does not represent the angle position where the unbalanced heavy objects are located. For example, the position of the spark-type dynamic balancing machine indicated by the spark generally belongs to the direction of unbalanced heavy objects Light end. The use of dynamic balancing machine, this point must be clear. In other words, this machine’s phase angle, that is, the spark back is generally 180 °. When the rotor rotates and swings on the balancing machine, the rotor is affected not only by the centrifugal force of the unbalanced weight, but also by the rotor’s own inertial force, air resistance or friction force, and elastic restoring force of the swing frame And so on. These few forces