The invention relates to a helicopter automatic inclinator spherical hinge bearing comprehensive
fatigue testing machine which comprises a support, a base, an inner ring parallel mechanism, an outer ring parallel mechanism, a
power transmission mechanism and a
control system. The helicopter automatic inclinator spherical hinge bearing comprehensive
fatigue testing machine is characterized in that the base is fixed on the support, stand columns are arranged on the same circumference of the base at intervals, an upper cover is arranged on top ends of the stand columns, a main shaft is arranged between the base and the upper cover, the inner ring parallel mechanism is composed of an inner ring upper platform, a joint bearing, a first twist preventing arm, and an
electric power booster, the outer ring parallel mechanism is composed of an outer ring lower platform, a first bearing, a first gear, an outer ring upper platform, an adjustable
pressure controller, and a second twist preventing arm, the
power transmission mechanism comprises a motor and a second gear fixed on a
motor shaft, the motor is fixed on the base, and the second gear is meshed with the first gear. The helicopter automatic inclinator spherical hinge bearing comprehensive
fatigue testing machine has the advantages of being capable of realizing fatigue experimental tests on a ball hinge bearing, a joint bearing, a double-row contact bearing, and the like in a
helicopter rotor system.