Lifting device for combine-harvester secondary sickle

The utility model relates to a combine harvester used for the header lifting appliance of the auxiliary cutter of a harvester. A sector-shaped gear ring which has the same center with the header axle of a main cutter is arranged on the chassis of the harvester, and the sector-shaped gear ring is engaged with a pinion which is arranged on the header of the main cutter. The pinion is connected with a wheel through the axle, one end of a chain is fixed on the wheel, and the other end is connected with the hinged channel plate of the auxiliary cutter. When the main header is operated, the pinion rotates under the action of the gear ring, and the wheel winds the chain or a soft rope to realize the automatic lifting of the auxiliary cutter according to the action of the main header. The utility model carries out cutting in the form of ground proximity and shape imitation without other operations to meet the requirements for the lifting of the auxiliary cutter for the operation of the harvester.