Large corn combine harvester operation, corn stalks in the blade type small sub-furrowing under the action of sub-furrowing, by the chipping knife from the ground 3-6cm in the forward will be chipped corn stalks, relying on the rotating power of the chipping knife and the inertia of the weight of the stalks themselves to the longitudinal width of the conveyor belt, by the left and right side of the outer fallback fence and is located in the outer fallback fence within the more than one of the inner fallback fence *** with the same role to prevent the straw from falling sideways. The upper part of the straw is supported by a support rail. The upper part of the straw is automatically adjusted by the hydraulic lifting cylinder of the straw support device according to the height of the corn stalks, and the straw support device holds the tip of the straw and supports it backward; under the action of the chipping knife, conveyor belt, outer anti-fall guardrail, inner anti-fall guardrail and the straw support device***, the straw will be transported to the transverse conveyor belt, and the straw will be tightly adhered to the three triangular belts of the upper, middle and lower parts of the belt, and there are three rows of the conveyor teeth of the upper, middle and lower parts of the conveyor belt and transverse conveyor belt***. *** Under the same action, the straw is conveyed to the longitudinal long conveyor belt. Straw automatically into the knife automatically adjust the compaction under the conveyor belt, so that the straw automatically forward movement, straw into the knife large mouth feed hopper pinch continue to enter the knife on the feed straw wheel, under the feed straw wheel between the upper and lower feed straw wheel will be squeezed off the cob into the knife corn collection box. Straw and then forward movement knife after the upper feed straw wheel, after the lower feed straw wheel between, and under their role in conveying the knife fixed blade below, by the high-speed rotation cut off the knife and fixed knife cheat *** with the role of the straw according to the requirements of the length of the cut off, chopped straw is thrown into the knife transverse propulsion winch, by the transverse propulsion winch will be cut off after the delivery of the knife straw collection box, the collection of low impurity rate of the straw, the straw collection box under the baler The straw collection box is equipped with baler or filling machine. The stubble left by the cutting knife is then chopped up by the stubble knife and spread to the rear.

The combing combine harvester adopts the pre-cutting threshing harvesting process, and its working principle is to comb off the grains growing on the stalks in the field directly and convey them to the compound threshing separation and cleaning device for the subsequent operation, and at the same time, use the hay-cutting device to cut off the combed off stalks and convey them to the side or the back side of the strip laying. Thus, it has its unique advantages: novel structure, small power consumption, high productivity, reliable operation, good wet stripping performance, small total loss rate and crushing rate.