DOUBLE-KNIFE CUTTING APPARATUS DRIVE Russian patent published in 1994 - IPC

FIELD: agricultural engineering. SUBSTANCE: drive has a drive shaft with a double- stage crank on which crankpins bearings with housings are mounted, the housings are connected to brackets mounted on backs of the knives on both sides of the crank. The brackets are made with necks which also have bearings with housings, the necks are pivotally connected by one of their ears to matching housings of the double-stage crank, and by the second ones - to double-arm levers in pairs by flexible preliminary stressed links. All the housings are fitted on the bearings by flexible elastic bushes. EFFECT: improved operational reliability. 4 dwg