| 摘要 |
A drive unit for a vehicle is provided for use as a robot in pipe systems, cavities or the like. The drive unit includes at least one ring-like outer wheel and at least one driven magnetic wheel. The outer and the magnetic wheels have axes parallel to each other and are arranged eccentrically to one another, and engage one another such that when rotating relative to the outer wheel, the magnetic wheel delineates with its wheel axis a concentric circle lying within the outer wheel. In such a drive unit, stronger magnetic adhesion is enabled by the outer and magnetic wheels being arranged one behind the other in an axial direction. The engagement between the outer and magnetic wheels is effected by a circular, concentric disk connected securely against rotation to the magnetic wheel and rolls with its outer peripheral surface on the inner peripheral surface of the outer wheel.
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