Balancing weight connection structure capable of reducing blade high-cycle fatigue test article frequency

The invention belongs to the technical field of engine testing and particularly relates to a balancing weight connection structure capable of reducing the blade high-cycle fatigue test article frequency. The balancing weight connection structure capable of reducing the blade high-cycle fatigue test article frequency is characterized by being composed of a bolt (1), a blade test article (2), a nut (3), a blade basin face balancing weight (4), a blade back face balancing weight (5) and a locking sheet (6). The blade basin face balancing weight (4) and the blade back face balancing weight (5) are connected with the blade test article (2) through the bolt (1) and the nut (3). The locking sheet (6) is located among the balancing weights, the nut and a bolt head. In the time of assembly, the locking sheet is locked with the balancing weights, the nut and the bolt head respectively. According to the balancing weight connection structure capable of reducing the blade high-cycle fatigue test article frequency, the bla