A high-efficiency corn cob threshing device

Abstract

The invention relates to a high-efficiency corn cob threshing device, which belongs to the technical field of agricultural machinery. The device includes a broken core mechanism located on the upper part of the frame and a threshing mechanism at the lower part; the threshing mechanism includes a threshing drum, a concave screen, a cleaning fan and a material guide plate, and the threshing drum is supported by axially spaced webs and distributed circumferentially. The sub-shaft is covered with discontinuous threshing springs, and the threshing nails looped on the sub-shaft are arranged between adjacent threshing springs. The hinges of the forward-extending left and right hinged plates and the rear-extended left and right hinged plates of the broken core mechanism are respectively fixedly connected with the synchronous meshing gear, and the cantilever end is connected with the corresponding tension spring; each hinged plate supports the driving shaft through Saddle rollers driven by universal joints. The invention integrates broken cores and threshing, performs high-efficiency broken core treatment before corn threshing, and effectively reduces corn grain threshing damage together with the threshing mechanism after broken cores, and provides a feasible technical approach for solving high-humidity corn low-damage threshing .

Description

technical field [0001] The invention relates to a corn threshing device, in particular to a low-damage and high-efficiency corn cob threshing device, which belongs to the technical field of agricultural machinery. Background technique [0002] Corn has multiple uses such as food, feed, industrial processing, and edible oil, and is widely planted. However, due to the tight stubble and the high moisture content of corn ears during the harvest period, most corn in China uses ear picking, peeling, and harvesting. The segmented harvesting mode of boxing, transportation, drying, and threshing has many operating links and high costs, and the dehydration process of corn ears and grains is limited by the weather and the site. If the drying and threshing cannot be done in time, mildew, rot, and Germination and other phenomena, reducing the yield and quality. According to the technical conditions of corn harvesting machinery GB / T 21962-2008, the grain moisture content suitable for ear...

AI Technical Summary

Problems solved by technology

[0005] After careful analysis, it was found that the reasons for more damage after threshing of corn are: the clamping mechanism of the core breaking process only relies on the elastic deformation of the elastic roller to adapt to the different diameters of corn ears and the difference in diameter of different parts on the same ear, which cannot be maintained. Stable and continuous clamping force, it is difficult to ensure the stability of corn cobs, which will affect the effect of cob breaking; and the core cob combined with the circle drill and the central twist drill is difficult to adapt to corn cobs of different thicknesses, and there will be a certain procedure Corn kernels are damaged by wounding; especially the threshing process after core crushing adopts multi-channel mechanisms such as rubbing initial removal, flexible threshing separation, etc., which increases the probability of damage to corn kernels

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