Abstract:
The invention relates to machine construction, namely to precessional planetary transmissions. Precessional planetary transmission, which contains a housing (1) with a flange (2), in which are placed a satellite wheel (4) with two conical crown gears (6, 7), a driving shaft with a crank (12), installed on bearings (13), a driven shaft (14), installed on bearings (15), and two central conical gears, fixed (3) and movable (5), which interact with the satellite wheel (4) by means of the crown gears (6, 7); the satellite wheel (4) is rigidly mounted on a satellite carrier (8), placed on a spherical support (9), located on the driven shaft (14) with the possibility of axial movement, in the center of precession O thereof, coaxial with the movable wheel (5); the satellite wheel (4) is equipped with a half-shaft (10), at the end of which bearings (11) are mounted, kinematically connected to the driving shaft with a crank (12); in the driving shaft with a crank (12), on the side, an inner cylindrical surface is made inclined at a nutation angle θ to the axis of the central wheels (3, 5), in which the half-shaft (10) of the satellite wheel (4) is installed with the possibility of axial movement, so that the satellite wheel (4) together with the satellite carrier (8) floats axially with a positioning with clearances between the central wheels (3, 5) with the center of mass merged with the center of precession O. The technical project is developed and the industrial prototype is experimentally researched.