Small high-performance combine harvester

Abstract

The invention discloses a small high-performance combine harvester. The small high-performance combine harvester comprises a traveling assembly, an engine assembly, a header assembly, a threshing assembly, a grain outlet barrel assembly, a gearbox assembly, and a transmission control assembly, wherein the gearbox assembly is fixedly installed on the traveling assembly and is connected between the engine assembly and the traveling assembly in a transmission mode, the transmission control assembly is fixedly installed on the traveling assembly and is connected between the engine assembly and the header assembly, the threshing assembly and the grain outlet barrel assembly in a transmission mode, the threshing assembly comprises an axial-flow type threshing component and a secondary threshing component, and the secondary threshing component is fixed to a straw outlet of the axial-flow type threshing component and is used for conducting secondary threshing on straws discharged from the straw outlet. According to the small high-performance combine harvester, secondary threshing can be achieved, and compared with the prior art, the loss rate of grains can be lowered greatly, a threshing device can not be blocked by straws inside the threshing device, and the performance of the small high-performance combine harvester meets government standard requirements; the axial length of the whole threshing device is proper, the structure is simple, and the performance is excellent.

Description

technical field [0001] The invention relates to a combine harvester, in particular to a small high-performance combine harvester. Background technique [0002] The combine harvester is a harvesting machine that can complete the harvesting, threshing, and debris removal of cereal crops at one time, and then directly obtain grain from the field. Compared with manual harvesting, it can reduce threshing losses, reduce labor intensity, and save labor. It is a field operation. Indispensable agricultural machinery. [0003] At present, there are small combine harvesters on the market, which are cheap, flexible and convenient to move, and are suitable for harvesting operations in small fields. The front end of the walking car body is used for harvesting seedlings; the conveying device is usually set between the header and the threshing assembly to form a bridge for transporting the seedlings to the threshing assembly, linking harvesting and threshing together in an orderly manner. ...

AI Technical Summary

Problems solved by technology

In the prior art, some small combine harvesters are equipped with an axial-flow threshing device. One end of the threshing drum is provided with a straw outlet. During threshing, the seedlings flow along the axial direction of the drum and are finally discharged from the straw outlet. The flow path of the ear in the threshing device should not be too long, generally around a circle, to avoid blockage. The problem is that the path of the ear in the threshing state is relatively short, it is difficult to remove the net, and the loss rate of the grain is high. to the national standard

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