BELT DRIVE AND DEVICE FOR TENSIONING Russian patent published in 2006 - IPC F16H7/12 

FIELD: mechanical engineering.

SUBSTANCE: belt drive comprises driving pulley, at least one driven pulley, belt that connects the driving pulley with the driven pulley, and device for tensioning provided with the lever for carrying the load caused by the belt and mounted for permitting rotation on the base, pulley that bears on the lever and cooperates with the belt of the drive, deflecting member that cooperates with the base, and damping member provided with the friction surface that cooperates with the base. The damping member interacts with the lever at the point of rotation, the deflection member interacts with the damping member at the first and second points of the contact so that the normal force is applied to the friction surface caused by the belt tension. The damping of movement of the lever by damping member is provided by asymmetric damping force so that the damping force that acts in the direction of loading is greater than that acting in the direction of unloading.

EFFECT: reduced level of vibration.

17 cl, 39 dwg