Planetary gear with little play
AssigneeAlpha Getriebebau GmbH
InventorMichael Butsch
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Abstract
The invention relates to a planetary gear with little play that comprises, for one stage of reduction each, at least one sun wheel (4, 7), an elastically deformable internal geared wheel (11), wheels (6, 9) that are rotatably received by a planetary carrier (5, 8) and that act on the one hand on the sun wheel and on the other hand on the internal geared wheel (11), thereby transmitting power, and a housing. The aim of the invention is to provide a planetary gear that is simple in design and reliable in operation. To this end, the elastically deformable internal geared wheel is configured as an outer wall zone of the housing.
Claims12
A planetary gear with little play comprising, for one stage of reduction each, at least
- one sun wheel;
- an elastically deformable internal geared wheel;
- planetary wheels that are rotatably held by a planetary carrier and that act on the one hand on the sun wheel and on the other hand on the internal geared wheel, thereby transmitting power;
- and
- a housing,
- characterised in that
- the elastically deformable internal geared wheel (11) is configured as an outer wall region of the housing.
The planetary gear according to any one of the preceding claims,
- characterised in that
- the internal geared wheel (11′), of which there is at least one, comprises slots to increase its elastic deformability.
The planetary gear according to any one of the preceding claims,
- characterised in that
- at its second end, the elastically deformable internal geared wheel (11) is welded to a second face wall (3) which delimits the gear housing axially to the outside.
The planetary gear according to any one of the preceding claims,
- characterised in that
- the axis of the sun wheel (4, 4′;
- 7) extends eccentrically in relation to the axis of the internal geared wheel (11;
- 11′).
Dependencies are inferred from the claim text.