SPANNVORRICHTUNG MIT MECHANISCHER DÄMPFUNG FÜR EINEN ZUGMITTELTRIEB

The invention relates to a clamping device having mechanical damping for a traction engine drive, having a fixed, bowl-shaped base part (6) and a clamping roller carrier (1) having at least one clamping roller (2) and rotatably supported by a sliding bearing (4) on a centrally disposed bearing spindle (5) by means of a hub-shaped bearing part (3), wherein the clamping roller carrier (1) is pretensioned against the base part (6) by means of a torsional spring (9) disposed in the ring space (8) formed between the inner contour of the wall (7) of the bowl-shaped base part (6) and the hub-shaped bearing part (3) of the clamping roller carrier (1) and concentrically encompassing the bearing part (3). Furthermore, according to the invention, the torsional spring (9) in said clamping device is designed as a tabless spring on at least one end thereof, and supports itself by means of the at least one tabless spring end on a first frictional element (11) in the form of a brake shoe, and by means of the other spring end on a bowl-shaped base part (6) of the clamping device, wherein the first frictional element (11) is pivotally supported on the clamping roller carrier (1) by means of a lever arm (12) extending in turn through a cutout (13) in the wall (7) of the base part (6) and is pressed by the spring force by means of the torsional spring (9) against the inner contour of the wall (7) of the bowl-shaped base part (6).