| 摘要 |
The invention relates to a tool unit (1), having a drive means (2) that comprises a drive motor (3) and a drive shaft (4), which can be rotated by the drive motor (3) in a forward direction (12) and a reverse direction (13) about a drive rotation axis (14), having a drive means (5) that comprises an output shaft (6), which can be connected in a rotationally fixed manner to a machining tool (17) and can be rotated in a rotation direction (15) about an output rotation axis (16), having a planetary gear mechanism (8) that is arranged between the drive and output shafts (4, 6) and has a plurality of planetary gear components, the drive shaft (4) being coupled in a rotationally fixed manner to a first one of the planetary gear components, and a device (10) for switching between a first and a second gear ratio of the planetary gear mechanism (8) by changing the direction of rotation (12, 13) of the drive means (2). |
