Kernel threshing device used on corn harvester

Abstract

The invention discloses a kernel threshing device for a corn harvester, and relates to the technical field of agricultural technical devices. The kernel threshing device comprises a threshing mechanism and a threshing support, wherein the threshing mechanism is fixedly installed at the upper end of the threshing support, three threshing bins are sequentially arranged in the threshing mechanism according to a certain angle, a threshing shaft is arranged in each threshing bin, spiral blades or shifting plates are arranged at one ends of the first threshing shaft and the second threshing shaft, columnar threshing teeth are evenly distributed on the rest portions of the threshing shafts according to a certain angle and distance, a threshed corncob smashing and returning device is further arranged at a cob outlet of the third threshing bin, the threshing bins are adopted, corncobs are placed into the threshing bins from corncob inlets, and after entering the threshing bins, the corncobs pass through the threshing shafts in the threshing bins the corncobs are pushed by the spiral blades and rubbed by the threshing teeth to be threshed, the rubbing linear speed is low, the impact force is small, therefore, the crushing loss is small, the threshing efficiency is high, the yield of crops is increased, and waste of corn kernels is avoided.

Description

technical field [0001] The invention relates to the technical field of agricultural technology, in particular to a grain threshing device used on a corn harvester. Background technique [0002] At present, the threshing work of crops is basically mechanized, especially the threshing of corn is generally performed after harvesting in the sun, and after the moisture content of the corn reaches a certain value, it is threshed by a fixed thresher; in recent years, some grain harvesters have also appeared on the market. However, the general models are large and expensive, and are not suitable for harvesting corn kernels in small and medium-sized plots. Moreover, the current mechanized devices for threshing tend to cause damage to corn kernels during threshing, which reduces the yield of corn, and the threshing effect is not good. The efficiency is low, and the threshed corn kernels are mixed with some impurities, which reduces the quality of the corn. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] At present, the threshing work of crops is basically mechanized, especially the threshing of corn is generally performed after harvesting in the sun, and after the moisture content of the corn reaches a certain value, it is threshed by a fixed thresher; in recent years, some grain harvesters have also appeared on the market. However, the general models are large and expensive, and are not suitable for harvesting corn kernels in small and medium-sized plots. Moreover, the current mechanized devices for threshing tend to cause damage to corn kernels during threshing, which reduces the yield of corn, and the threshing effect is not good. good, low efficiency, and at the same time, the threshed corn kernels are mixed with some impurities, which reduces the quality of corn

Images