| 摘要 |
Torsional vibration dampers have a receptacle (1), which can be flanged onto a shaft, and a vibration-damping flywheel ring (2), which is elastically coupled to the circumference of the receptacle (1) via at least three rubber webs (3). At high speeds, there is a risk that the flywheel ring (2) will be displaced eccentrically with respect to the receptacle (1), as a result of a small unbalance. To prevent this radial displacement, at least three elastic spacers (5) are arranged in the gap (4) between the receptacle (1) and the flywheel ring (2), at equal intervals around the circumference of the receptacle (1), leaving free a narrow residual gap. Torsional vibration dampers of this type are intended particularly for motor vehicle transmissions. In order to dimension this residual gap precisely, and to achieve smooth running in the event of radial movements of the flywheel ring with respect to the receptacle, the spacers (5) are vulcanised onto the inner wall of the flywheel ring (2) and pocket-like cut-outs are formed in the spacers (5), into which there can be inserted flat shims (6) of material with a stable shape, such that the spacers (5) are extended in a smooth manner toward the receptacle (1), such that the residual gap is less than 0.2 mm. <IMAGE> |
