| 摘要 |
A micro gear system, operating according to the principle of a strain wave gear system, a Wolfrom gear system, or a similar planetary gear system comprises at least one sun wheel ( 14 ) and at least two planet wheels ( 16 ) meshing with the sun wheel ( 14 ). The sun wheel ( 14 ) is rotatably fixed to drive shaft ( 20 ) placed along a longitudinal axis ( 18 ) of the gear system. The planet wheels ( 16 ) indirectly or directly mesh with a toothing which is rotatably fixed to a drive shaft ( 28 ) placed centrally along the longitudinal axis of the gear system. The drive shafts ( 20,28 ) are embodied as hollow shafts ( 30,32 ) having continuous bore holes ( 34,36 ) such that information or fluid media can be directed through the gear system. A sealing system ( 42 ) comprising a labyrinth seal ( 44 ) which includes a plurality of annular grooves ( 46 ) is disposed between the hollow shafts ( 30,32 ).
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