Planetary gear for drive unit, has sun wheel, planetary wheels and internal wheel, where wheels exhibit bearing surface eccentricities that are arranged and formed so that bearing surfaces of wheels are rolled up on top of each other

摘要

The gear (3) has a sun wheel, two planetary wheels (9) and an internal wheel (10), where each of the sun wheel and the planetary wheels exhibit a circular outer circumference. The internal wheel exhibits a circular inner circumference. The wheels are provided with a smooth bearing surface, where each wheels exhibit eccentricity of the bearing surface. A power is transmitted between the wheels in such a manner that the bearing surfaces rest exactly against a contact point. The eccentricities are arranged and formed so that the bearing surfaces are rolled up on top of each other.