A high-speed leak-free grain harvester

Abstract

The invention provides a high-speed leakage-proof harvester. The high-speed leakage-proof harvester comprises a header, an inclined conveyor, a thresher, a grain tank and a grass tank, wherein the thresher comprises an axial flow roller, a grid concave plate and a top cover, 6-8 rasp bars are arranged at intervals at the left section of the axial flow roller circumferentially, 4-6 separating plates are arranged at intervals at the right section circumferentially, and 2-3 gaps are formed in the left end of each separating plate; and a helical conveyor is arranged below the grid concave plate, a gap is formed in a material flinging plate of a first distribution helical conveyor of the helical conveyor, and four gaps are formed in a material flinging plate of a second distribution helical conveyor. With adoption of the scheme and according to the principle of aerodynamics, the airflow direction is changed, an airflow cleaning effect is maximized, the problems that a large quantity of wheat grains are remained in wheat bran after harvesting and grain leakage is serious, and the cleanness of the wheat grains is low and large quantity of residues are remained are solved, clean wheat grains are achieved, residue quantity after cleaning is reduced, and the problem that a re-thresher is prone to blockage is solved.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a high-speed non-leaking grain harvester. Background technique [0002] Winter wheat is planted in most parts of northern my country. According to statistics, the planting area of ​​6 major wheat producing areas including Henan, Shandong, Hebei, Anhui, Jiangsu, and Shaanxi is 290 million mu. Mu, a total of 318 million mu of wheat is planted. In order to improve the harvesting efficiency, about 310 million mu of wheat oil recovery combine harvesters are harvested nationwide. [0003] The combine harvester, known as the Combine in the early 1950s, is a harvesting machine that can complete the harvesting, threshing, separating stalks, removing debris and other processes of cereal crops at one time, and directly obtains grains from the field. [0004] A common self-propelled combine harvester consists of headers, inclined conveyors, threshers, engines, chassis, transmission syst...

AI Technical Summary

Problems solved by technology

Since the separation plate is an integral steel plate, the load on the harvester is relatively large, the consumption of diesel oil is large, and the stalks are easily crushed excessively, so that the amount of debris is too large. During the falling process of wheat grains and debris from the bottom plate to the vibrating screen, The wind flow of the fan cannot completely separate the wheat grains from the debris, and some wheat grains and debris are blown out together, resulting in a high loss rate of wheat grains

On the other hand, due to the great disparity in maturity and humidity of the crops, it is easy to cause the blockage of the axial flow drum, thereby affecting the working efficiency of the axial flow drum, and when harvesting wet wheat, the harvester is prone to stop and go and insufficient horsepower The problem

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