Combined grain harvester for threshing before cutting

Abstract

The invention discloses a preceding reaping threshing combined cereal harvester. The preceding reaping threshing combined foxtail millet harvester comprises a threshing structure, a cereal cleaning, conveying and combined transmission structure, a straw conveying mechanism and a mowing structure. The preceding reaping threshing combined foxtail millet harvester which makes straws stand still or fallen straws erected to stand still, and only makes grains stripped off, subjected to dreg removal and then collected is adopted to replace an existing whole-feed type harvester and an existing half-feed type harvester. The problems are solved that by means of the existing half-feed type harvester, grains are missed and wasted before threshing, the structure is complex, the cost is high and the energy consumption is too high; the special requirement that in an actual cropping system, only the straws which are not cut off can be buried into soil to serve as a fertilizer is met; the preceding reaping threshing combined foxtail millet harvester can operate in a paddy field, a muddy field, a hill area and a mountainous area and walk with no difficulties in a road-free sloping field within 45 degrees; even working in the paddy field deep muddy surface, the preceding reaping threshing combined cereal harvester does not sink; moreover, only one third of power of an existing harvester is needed, the preceding reaping threshing combined cereal harvester can complete the same amount of work; by means of the preceding reaping threshing combined cereal harvester, the bad manners that farming cannot be conducted, so that farmers set fire to burn up the straws are avoided.

Description

technical field [0001] The invention relates to a special agricultural machine for harvesting rice and wheat, in particular to a pre-cut threshing combined grain harvester. Background technique [0002] Existing harvester on the market at home and abroad has two classes of full-feeding type and half-feeding type at present, all will enter threshing process after straw is cut off earlier. Because the straw is cut first, the full-feed harvester needs a linear speed of about 17 meters to remove the grains, which consumes too much power; although the linear speed of the half-feed harvester is not high, the structure is too high. It is complicated, has a high loss rate, and the purchase cost is too high, so it is becoming more and more unpopular in the market. Contents of the invention [0003] The object of the present invention is to provide a combine grain harvester for threshing before harvesting, so as to solve the problems raised in the above-mentioned background technol...

AI Technical Summary

Problems solved by technology

Because the straw is cut first, the full-feed harvester needs a linear speed of about 17 meters to remove the grains, which consumes too much power; although the linear speed of the half-feed harvester is not high, the structure is too high. Complicated, with a high loss rate and high purchase cost, it is becoming less and less popular in the market

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