The utility model discloses a
turbine rotor fulcrum bearing mounting device which comprises a
chassis, and a locking
assembly, a first supporting
assembly, a first mounting
assembly, a second supporting assembly, a second mounting assembly and a third supporting assembly are sequentially arranged from one end to the other end of the
chassis. The locking assembly is provided with sleeve teeth used for being matched with a spline of the rotating shaft. The first supporting assembly, the second supporting assembly and the third supporting assembly are all used for supporting a rotating shaft of the
turbine rotor. The first mounting assembly and the second mounting assembly are both used for mounting the
torque multiplier. The first supporting assembly, the second supporting assembly and the third supporting assembly are arranged for supporting from different positions of the rotating shaft, the locking assembly is arranged for ensuring that the rotating shaft cannot rotate around the axis of the rotating shaft, and the first mounting assembly and the second mounting assembly are arranged for mounting the
torque multiplier; by means of the two torsion multipliers which can correspond to the two fulcrum bearings respectively, the two fulcrum bearings can be installed, the
turbine rotor does not need to be turned over in the installation process, and safety is higher.