Grain flexible bionic stripping threshing device

Abstract

The invention discloses a grain flexible bionic stripping threshing device. A feeding brush roller and a stripping threshing cylinder are fixed on a rocker arm, a fine-threshing sorting bin is fixed on a machine frame below the back portion of a rough-threshing stripping cylinder, an impurity conveying auger and a grain conveying auger are fixed on the tail portion of the machine frame, by rotating of the front-arranged feeding brush roller, grain ears are moved to a feeding opening, rigidness-flexibility-combined stripping teeth are evenly distributed on the surface of a metal cylinder in the radial direction, the ears are subjected to flexible combing brushing of a rough-threshing brush of a concave plate on a brush during a rotating process, a rough-threshing process is completed, two layers of fine-threshing tooth-shaped belts and two layers of fine-threshing hole-shaped belts form a three-level fine-threshing working space, fine-threshing flexible rollers are evenly distributed in the space respectively, six-time different-direction fine threshing is completed, and grains and shells are output respectively. The grain flexible bionic stripping threshing device is simple and reasonable in structure and high in universality, a key threshing part is exquisite and scientific, stripping loss is low, grain surface damage is low during a threshing process, threshing rate is high, and stripping-threshing-sorting comprehensive efficiency is high.

Description

technical field [0001] The invention relates to an agricultural machine, in particular to a flexible bionic ear picking and threshing device for rice and wheat. Background technique [0002] At present, rice and wheat harvesting technology is mainly divided into two types: semi-feeding and full-feeding. Some countries have also explored the harvesting technology of threshing before cutting. The feeding method adopts the method of cutting first and then feeding and threshing, and the stalks are not separated before threshing. [0003] The semi-feeding harvester has very poor versatility for wheat operations, and a large number of harvest omissions are lost due to the height of the wheat; when the semi-feeding harvester is harvesting rice, it must be cut by a belt-clamping hoist and cutter, increasing the It reduces the structural complexity and manufacturing cost of the whole machine, and at the same time, when the humidity of the straw is high, it is easy to cause problems ...

AI Technical Summary

Problems solved by technology

[0003] The semi-feed harvester has very poor versatility for wheat operations, and a large amount of harvesting omissions is caused due to the height of the wheat; the semi-feed harvester must cut rice through a belt-clamped grain lifter and cutter when harvesting rice, increasing It reduces the structural complexity and manufacturing cost of the whole machine, and at the same time, when the humidity of the straw is high, it is easy to cause problems such as entanglement and blockage of the straw at the clamping belt.

The full-feed harvesting machinery needs to thresh the straw and ear heads at the same time, which increases the degree of mixing of the straw and ear heads. This process of mixing and threshing first and then separating and cleaning increases the difficulty of separation and cleaning. The cleaning process also causes losses such as seed splashing

Before cutting, threshing directly cuts and picks the head of the ear. Due to the fast speed of the picking device, high hardness, and great impact on the head of the ear, a large number of grains are splashed at the moment of picking the ear, and the removal rate of the grain is low and the surface is seriously damaged.

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