Link chain drive, as well as method to drive the drive chainwheel of a link chain

摘要

Link chain drive comprises a drive chain sprocket (A) for a link chain (G), and a drive system driving with non-uniform rotation the drive chain sprocket to compensate for variations in speed of the link chain. The drive system consists of two wheels coupled together by an endless flexible tension device (Z), and a moving tension element (20) which acts on the load strand of the tension device to change the effective length of the load strand. Independent claims are also included for alternative link chain drives, and for link chain guides.