Axial flow threshing separation facility in tangential feeding type

Abstract

The invention relates to a tangential feeding axial flow threshing and separating device, which is used for taking off the grains of crops from the ear head. The threshing element adopts the composite structure of short grain rod and plate teeth, the short grain rod is installed on the grain rod seat, the plate teeth are located on one side of the grain rod seat, and the concave plate adopts two combined structures of grid screen and punching screen, which can be realized with the threshing drum. Threshing and separation of crops. The short-grain rod-plate teeth composite elements are arranged on the closed cylinder of the threshing drum in a spiral manner; by changing the short-grain rods and plate teeth of different sizes, changing the position of the plate teeth, and adjusting the motion parameters, the device can adapt to rice and wheat. , rapeseed, soybean and other crops threshing and separation requirements. The invention has high depuration rate, less entrainment, low grain damage rate, light stalk breakage, less short stalks and miscellaneous residues in the shedding, uniform distribution along the axial direction of the threshing drum, and strong adaptability to the environment. After simple adjustment, it can adapt to the threshing requirements of various crops, the structure is simple, and the processing and manufacturing are convenient.

Description

technical field [0001] The invention relates to a tangential feeding axial flow threshing and separation device for a harvesting machine, which is mainly used for detaching grains of various crops such as rice, wheat, rape and soybean from ears. Background technique [0002] At present, the harvesting mechanical threshing and separating devices mainly include a bar-shaped drum-type threshing device, a spike-toothed drum-type threshing device, and a bow-toothed drum-type threshing device. The grained rod drum type threshing device generally adopts an integral grid concave plate, which is mostly used in a cross-flow type threshing device. It mainly relies on kneading for threshing. The threshing flexibility is large, the stalks are lightly broken, and the removal rate is relatively low when removing difficult crops. , large entrainment loss, sensitive to wet crops, and poor adaptability. Spike-tooth threshing drum type threshing devices generally also use integral grid concav...

AI Technical Summary

Problems solved by technology

However, this device is not suitable for crops with a large ear width difference, and its supporting clamping and conveying device has a complex structure and high cost

Commonly used axial flow threshing devices have three types of concave plates: grid screen type, punching screen type, and woven screen type. Among them, the grid screen type concave plate has the strongest threshing and separation ability, but the stems are seriously broken.

In addition, the above-mentioned threshing and separating devices generally cannot adapt to the threshing requirements of various crops through simple adjustments.

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