| 摘要 |
A force-limiting clutch is described for establishing a frictional connection between a flywheel and a main drive shaft of an agricultural pick-up baler. Swingable clutch members (25) are mounted on a clutch supporting disc (16) so that they are able to pivot about respective axes (28) which are spaced from and parallel to that of the drive shaft, and are pressed by means of pressure springs (31) against an inner face (18) of the driving flywheel. The swingable clutch members (25) are arranged and formed such that on the occurrence of an overload moment they pivot in the direction of rotation so that their friction surfaces (27) disengage from the inner face (18) of the flywheel. Through this arrangement, very strong disengagement forces result in a friction pair, so that the force-limiting clutch responds with only a slight overload moment even in the case of rusted-up friction facings (26) on the face rim of the clutch (18). The clutch is in series with a slip coupling (Fig. 1). <IMAGE> |
