A turbine rotor (50) for aircraft turbomachinery, in particular a counter rotating impeller, comprises:-The rotor disk (52),-Circovirus (54);-A blade (56) mounted between the disk and the virus, each blade having a foot on the disk side and a top on the virus side,The blade is characterized in that the top of the blade is connected with a first ring (60), the first ring (60) includes an external spline (63b) which is meshed with the internal spline (63A) of the impeller to ensure the rotation torque transmission between the impeller and the blade,And the blade foot is connected with a second ring (62), which comprises an internal spline (64b) engaged with the external spline (64a) of the disc, so as to ensure the torque transmission between the blade and the disc.Abstract figure: Figure 3
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