Propeller static balancing instrument

The utility model relates to a propeller static balancing instrument. A lower platform is supported by a main base, a weighing sensor and a jack, and the weighing sensor and the jack are in contact with the lower platform. A hydraulic spherical bearing which is fixedly provided with a horizontal bracing plate is arranged on the lower platform, and an imbalance measuring module, a rotary positioning module and a horizontal positioning module are distributed on the horizontal bracing plate. The hydraulic spherical bearing is connected with a central positioning shaft, and an upper conical block and a lower conical block are arranged on the central positioning shaft. An oil supply pipe which is connected with a pump station system is connected with the hydraulic spherical bearing through the lower part of the main base, and an oil return pipe which is connected with the pump station system extends in an oil sump. Each sensor and each sensor module are connected with a data acquisition, processing and display device. The detection precision of the utility model is improved, the static imbalance numerical values and positions of the propeller can be directly displayed on a computer screen, and the change of the numerical values can be monitored in real time. The multiple working procedures, such as detecting, repairing, weighing, etc., can be completed by assembling the utility model only once.