Combine harvester

Abstract

A combine capable of securing excellent sorting efficiency by a sorter even when the amount of grains is large, comprising a threshing part threshing reaped cereal stalks and a sorting part sorting the grains threshed by the threshing part. A grain flow-down guide body is disposed between a threshing cylinder installed in the threshing part and the sorter installed in the sorting part just below the threshing cylinder. The grain flow-down guide body comprises a grain flow-down guide face guiding the grains threshed by the threshing cylinder and leaking down to flow down to the center part of the sorter. Thus, even if the amount of the grainsis large, the excellent sorting efficiency by the sorter can be secured.

Description

[0001] Combine harvester Technical field [0002] The invention relates to a combine harvester. Background technique [0003] One solution of the current combine harvester is to have a threshing section for threshing the harvested grain stalks, and a sorting section for sorting the grains that have passed through the threshing section. The threshing drum is installed in the threshing section. A sorting body is arranged at a position directly below the sorting body, the sorting body is arranged on the sorting part, a feed tray is arranged at the front of the sorting body, and at the same time, a chaff sieve (for example, (Refer to Japanese Patent Laid-Open No. 2000-139183). [0004] In addition, a plurality of guides extending from the right end to the inner rear are provided on the feed tray, and each guide body guides the grains that have fallen to the right side of the feed tray to the center of the feed tray. In order to use the feed tray to properly sort the grains by specific...

AI Technical Summary

Problems solved by technology

[0005] But when utilizing the threshing part to threshing the crops with good threshing rate, as mentioned above, even if the grains that are temporarily deflected to the feeding tray and leaked by the guide body are guided, the amount of the grains that are leaked obliquely is large, Therefore, the guidance of the guide body to the vicinity of the central part is insufficient, and there is a problem that the specific gravity separation of the grains by the feed pan cannot be ensured well.

[0006] In addition, a receiving net (receiving net) is laid directly under the threshing drum, so that the grains leak through the receiving net onto the feeding tray, but since the mesh sizes of the receiving nets are exactly the same, the barbed grains (thorny grains) will not It is easy to drop, and there is a problem that the sorting of the prickly grains cannot be efficiently performed

Images