| 摘要 |
A friction clutch includes a driving gearwheel, a clutch hub, and a clutch cage. The clutch cage and the clutch hub are coupled together by way of non-positive frictional forces in the clutch cage. A driving disc is fixed to the clutch cage, and a gearbox input shaft is in toothed or splined engagement with the clutch hub. Torsional springs are interposed between the clutch cage and a driving gearwheel to permit the driving gearwheel to rotate within a limited range of motion with respect to the clutch cage. The driving gearwheel meshes with a primary gearwheel on a crankshaft. The crankshaft drives rotation of the gearbox input shaft through the driving gearwheel, the torsional springs, the clutch cage, and the clutch hub. A friction device is interposed between a collar of the driving gearwheel and the driving disc. The friction device damps torsional vibrations by non-positively coupling the driving gearwheel with the driving disc in the radial direction.
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