Miniature combine harvester

Abstract

The invention discloses a miniature combine harvester which is good in harvesting quality. The miniature combine harvester comprises a body and a cleaning mechanism arranged on the body. The miniature combine harvester is characterized in that the cleaning mechanism comprises a cyclone separator arranged on the combine harvester, a shell of the cyclone separator is divided into a cylindrical part and a conical part from top to bottom in the axial direction, and helical impellers are axially arranged inside the cyclone separator; a vertically-upward air outlet and a transverse feed port are formed in the cylindrical part, a discharge port is formed in the lower end of the conical part, and vent holes are formed in the shell wall, close to the discharge port, of the conical part; the feed port is connected with an output port of a threshing device, and the air outlet is connected with an input port of the threshing device. Some cereal grain which is not plump and moves along with airflow can be secondarily cleaned, and the cereal grain is prevented from being discharged as impurities. Accuracy of impurity removal is improved, and the cleaning effect is improved.

Description

technical field [0001] The invention relates to an agricultural harvesting machine, in particular to a small combine harvester. Background technique [0002] Harvesters are one of the agricultural machinery supported by my country. Due to the late development of agricultural machinery in my country, the technical level is relatively backward compared with developed countries. In addition, the supporting technology of my country's harvester industry is backward, resulting in the low technical level of the overall harvester industry. The basic technical requirement of the harvester is to ensure the smooth and efficient operation of the grain under the condition that the technical indicators stipulated by the state are met. [0003] Since 2013, a number of harvester manufacturers in my country, especially in the south, have successively launched small combine harvesters for hilly and mountainous areas. However, due to immature technology, weak manufacturers’ technology, and poo...

AI Technical Summary

Problems solved by technology

[0003] Since 2013, a number of harvester manufacturers in my country, especially in the south, have successively launched small combine harvesters for hilly and mountainous areas. However, due to immature technology, weak manufacturers’ technology, and poor quality control of parts, they have poor field adaptability. , Grain adaptability is poor, harvesting efficiency is low, labor intensity is high, harvesting quality is poor, there have been a lot of returned goods and machines, and even manufacturers have closed

[0004] Typical harvesters generally have the following disadvantages: in the cleaning mechanism on the machine body, the cleaned grains are directly output, and the impurities will be blown out, but the larger particles of impurities (such as small stones) mixed in the grains, etc. It will enter the output grains, and the grains with less full grains will be blown out as impurities because they are too light. In this way, the cleaning mechanism of single winnowing is not thorough enough to remove impurities or the error of removing impurities is large, and the cleaning effect is not good.

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