FIELD: machine building.
SUBSTANCE: invention relates to 40-step coaxial reversible shaft-planetary transfer box. In gearbox four pairs of gears of constant engagement, freely located on parallel installed shafts, provide eight versions of transmissions. Simple three-link planetary mechanism implements five modes of movement: slow transmission, decelerating, direct, accelerating and fast transmissions.
EFFECT: improvement of operational properties due to reverse, considerable increase of number of forward and reverse gears.
1 cl, 2 dwg
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