Damping of vibrations of a viscoelastic patch pinion

摘要

Gear wheel (26) extending in an axial direction and a radial direction, comprising a disc or wing radial (30) carrying an annular rim axial (34), carrying said rim (34) gear teeth (40 ), wherein said disc (30) is provided with a damping device vibration (42) comprising a layer of viscoelastic material (44) and a counter-layer (46), the material layer being viscoelastic ( 44) arranged axially between the radial disk (30) and the counter-layer (46), and the layer of viscoelastic material (44) attached directly to the disc (30), being characterized in that the radial disc (30) has a frustoconical shape , wherein the vibration damping device (42) disposed on the inside of the frustoconical shape.