Small Combine Harvester Efficient Harvesting Threshing Assembly

Abstract

The invention discloses an efficient harvesting and threshing assembly of a small combined harvester. The efficient harvesting and threshing assembly comprises a framework, a reel assembly, a cutter assembly, a grain lifter, a conveying roller, a threshing cylinder, a sundry removing cylinder and a cylinder cover. Both the threshing cylinder and the sundry removing cylinder are arranged in an inner cavity of the cylinder cover, the sundry removing cylinder is positioned above the threshing cylinder, the cylinder cover is provided with a feed inlet, and the conveying roller is arranged between the cutter assembly and the cylinder cover and is used for longitudinally feeding cut seedlings and spikes into the feed inlet along the harvester. The efficient harvesting and threshing assembly of the small combined harvester has the advantages that the seedlings and spikes do not need to be transversely conveyed and are prevented from being transversely accumulated, and the efficient harvesting and threshing assembly not only is high in conveying quantity within unit time, but also is simple in structure and low in dead weight and idle resistance; the efficient harvesting and threshing assembly can perform harvesting operation at a high advancing speed as compared with an existing harvesting and threshing device, so that the harvesting efficiency can be greatly improved, the labor intensity of grain harvesting personnel, the grain harvesting cost and time consumption can be further reduced, and human resources can be saved.

Description

technical field [0001] The invention relates to an accessory of a combine harvester, in particular to a high-efficiency harvesting and threshing assembly of a small combine harvester. Background technique [0002] 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. It is the harvesting and threshing part located at the front end of the combine harvester. It is composed of a header and a threshing assembly. The header includes a cutter, a grain holder, a reeling mechanism and a seedling conveying mechanism. The common reeling mechanism has a reeling tooth There are two types of structures, the ear conveying mechanism is set on the rear side of the cutter, the ear is cut off by the cutter, and then the cut ear is sent to the threshing assembly for threshing through the ear conveying mechanism; the existing The width of the cutting table in the technology is ...

AI Technical Summary

Problems solved by technology

[0002] 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. It is the harvesting and threshing part located at the front end of the combine harvester. It is composed of a header and a threshing assembly. The header includes a cutter, a grain holder, a reeling mechanism and a seedling conveying mechanism. The common reeling mechanism has a reeling tooth There are two types of structures, the ear conveying mechanism is set on the rear side of the cutter, the ear is cut off by the cutter, and then the cut ear is sent to the threshing assembly for threshing through the ear conveying mechanism; the existing The width of the cutting table in the technology is usually designed to correspond to at least the width of two field ridges, so that at least two ridges of grain can be harvested in one trip. Therefore, the seedling conveying mechanism also widely adopts the structure combining the horizontal screw auger and the conveying chain. The spiral auger gathers the cut seedlings horizontally at the entrance of the conveying chain, and then uses the conveying chain to transport the seedlings longitudinally to the threshing assembly for threshing. Due to the many parts and complex structure of the conveying chain, the idling resistance is relatively large , so the width of the conveyor chain is generally controlled within 30 cm to prevent its own weight and idling resistance from being too large, and to ensure the dynamic performance of the small combine harvester, but at the same time it also greatly limits the conveyor chain. Conveying capacity and efficiency, The speed of the combine harvester needs to be strictly controlled during the harvesting operation, resulting in the generally low harvesting efficiency of the existing small combine harvesters

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