| 摘要 |
A drive unit for oscillatingly driven mowing sickles has a first transmission unit { 1 } with a first housing ( 5 ) defining a first axis ( 6 ). A rotor ( 7 ) is rotationally supported in the first housing ( 5 ) around the first axis ( 6 ). A first internal gear wheel ( 10 ) is fixed in the first housing ( 5 ) and provided with internal teeth. A toothed pinion ( 14 ) is rotationally supported in the rotor ( 7 ) around a second axis ( 12 ). The second axis ( 12 ) is radially off-set to the first axis ( 6 ). The toothed pinion ( 14 ) forms the output element of the drive unit and meshes with the first internal gear wheel ( 10 ). A second transmission unit ( 2 ) has an output ( 34 ) non-rotationally connected to the rotor ( 7 ) of the first transmission unit ( 1 ). The second transmission unit ( 2 ) is formed as a step-down gear. A motor ( 4 ), with an output shaft ( 45 ), rotationally drives the second transmission unit ( 2 ). The rotational speed N1 is reduced by the second transmission unit ( 2 ), formed as a step-down gear, to the rotational driving speed N 2 of the first transmission unit ( 1 ).
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