Threshing device of millet combine harvester

Abstract

The invention discloses a threshing device of a millet combine harvester, and belongs to the technical field of crop harvesting. The threshing device of the millet combine harvester provided by the invention comprises a threshing roller, a threshing roller top cap which is arranged on the threshing roller, lattice concave boards which are arranged below the threshing roller, wherein the threshing roller comprises a closed conical front tube and an opened back tube; the opened back tube comprises a roller shaft which is coaxially connected with the closed front conical tube, amplitude discs which are connected to two ends of the roller shaft and a plurality of threshing toothed bars which are uniformly distributed on the roller shaft and connected to the amplitude discs; each of parts of the plurality of threshing toothed bars is equipped with a rasp-bar toothed bar and a plurality of grass discharging teeth, and each of parts of the plurality of threshing toothed bars is equipped with a combined toothed bar and a plurality of grass discharging teeth; and each combined toothed bar consists of a plurality of threshing teeth and a plurality of arc elastic teeth which are arranged alternately at intervals. The threshing device of the millet combine harvester provided by the invention has a simple structure, takes rolling and grinding as the main functions, has a certain brushing function, and effectively reduces screen sticking by green stems and leaves.

Description

technical field [0001] The invention relates to the technical field of crop harvesting, in particular to a millet combine harvester threshing device. Background technique [0002] In recent years, with the promotion of domestic high-quality hybrid millet and the substantial increase in market demand for miscellaneous grains, millet production has begun to be emphasized and expanded, and farmers' production income and planting enthusiasm have also greatly increased. However, the biggest "bottleneck" affecting millet production at present is harvesting. [0003] Millet is a small crop with green and mature stalks, drooping ears, small grains and light grains. It is difficult to separate the grains from the stalks during harvesting, the grains are not easy to remove, the loss rate of entrainment and cleaning is high, and the damage is serious. [0004] At present, there are three types of models used for millet harvesting, one is a crawler machine that uses a single vertical a...

AI Technical Summary

Problems solved by technology

However, the roller must be disassembled when the integral concave plate structure is disassembled, which is inconvenient to disassemble and assemble, and the concave plate structure will wear to different degrees at different positions as the usage time increases, and the entire concave plate needs to be replaced, resulting in high maintenance costs.

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