Fixed lower header capable of uniform straw smashing

Abstract

The invention discloses a fixed lower header capable of uniform straw smashing. The fixed lower header is fixed on a front axle of a harvester and comprises a lower header main frame, a lower cutting mechanism, a straw smashing mechanism and a transmission mechanism, wherein the lower header main frame also comprises a fixation rod; the included angle between cutting edges on two sides of a cutting blade is 60 DEG, and sawteeth are disposed on the cutting edge of each side; the straw smashing mechanism is installed in storage space which is formed through enclosing of a base, a blocking cover, a first seal plate and a second seal plate, a chamfer is disposed on an extending end of the straw smashing blade to form a cutting edge, and the chamber is located on the outer side of the straw smashing blade; and an adjustment gap is formed in the top of a sway arm. The fixed lower header capable of the uniform straw smashing disclosed by the invention has the advantages that straw parts left after cereal reaping can be cut and smashed, so a feeding amount of the harvester can be reduced, machine losses and threshing loads are reduced, and threshing effects are enhanced; stubble cutting heights can be kept consistent, and stubble cutting is low and smooth, so ploughing becomes easy; and straw smashing is uniform.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a fixed lower cutting platform with evenly crushed straw. Background technique [0002] At present, the country advocates that the straw should be returned to the field after harvesting, and then deeply plowed into the soil to fertilize the field. It is strictly forbidden to burn the straw. At the same time, the straw should be chopped and collected or returned to the field or not crushed. Also harvest the stalk portion of the grain. The cutting devices of today's harvesters are all composed of single-layer headers, which harvest the ears and stalks of the grain together, feed the cut grain stalks and ears of grain into the harvester, complete threshing and discharge the stalks . The disadvantages are that the cut stalks are long, the feeding amount is large, which affects the threshing effect, the machine is damaged, the energy consumption is high, and the effic...

AI Technical Summary

Problems solved by technology

The disadvantages are that the cut stalks are long, the feeding amount is large, which affects the threshing effect, the machine is damaged, the energy consumption is high, and the efficiency is low; The long straw is not easy to decompose after being returned to the field and becomes the base fertilizer

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