FIELD: machine building.
SUBSTANCE: invention relates to planetary mechanisms. Roller-screw reduction gear comprises first and second power links with threaded sections, threaded screw and threaded rollers. Threaded sections of the reducer parts have different thread directions. Power links are installed with possibility of mutual rotation. Corresponding threaded sections of the parts of the reduction gear are interacting with each other. Number of threads of adjacent threaded sections of power links is different. Drive mechanism comprises a roller-screw reduction gear and an electric motor with an output shaft installed with the possibility of transfer of rotation to the threaded screw of the reduction gear. Motor housing is fixed relative to one of power links. Hinge assembly comprises roller turn reduction gearbox, first and second parts. First part is rigidly fixed on one power link of the reducer, and the second one - on the other one.
EFFECT: higher torque while reducing overall dimensions of the reduction gearbox.
26 cl, 11 dwg
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