Centrifugal machine for centrifugal tube test

The utility model relates to a centrifugal machine for centrifuge tube tests, which comprises a centrifugal box and a centrifugal rotor, a motor is arranged at the bottom of the centrifugal box, a connecting shaft in driving connection with the motor is arranged in the centrifugal box, the centrifugal rotor is arranged on the connecting shaft, a cavity is arranged in the centrifugal rotor, a rotating shaft is arranged in the cavity, and a driving bevel gear and a locking mechanism are arranged on the rotating shaft. A plurality of screws are arranged on the side wall of the cavity, driven bevel gears are arranged at the ends of the screws, internal thread bushings are arranged on the screws, the internal thread bushings are inserted into the centrifugal rotor, connecting rods are hinged to the internal thread bushings, pipe sleeves are hinged to the connecting rods, supporting rods are hinged to the pipe sleeves, and the supporting rods are arranged on the centrifugal rotor. The rotating shaft drives the inte