Combine-harvester for rapes, rice and wheats

Abstract

The invention discloses a combine-harvester for rapes, rice and wheats. The combine-harvester for the rapes, the rice and wheats is capable of combining the functions of harvesting, threshing and grading of the rices and wheats and the rapes into a whole. The combine-harvester for the rapes, the rice and wheats comprises a rack, an actuating mechanism, a panicle-inlet mechanism, a threshing mechanism and a grain-shell separating mechanism, wherein the panicle-inlet mechanism is installed on the rack, the threshing mechanism is located at the back of the threshing mechanism, and the grain-shell separating mechanism is connected with a grain outlet of the threshing mechanism. The grain-shell separating mechanism comprises a vibrating grading sieve, a shell-blowing fan and a shell outlet, the vibrating grading sieve is composed of a vibrating grading sieve basket, an upper-layer sieve-piece angle-adjustable sieve and a lower-layer net-shaped sieve, wherein the upper-layer sieve-piece angle-adjustable sieve and the lower-layer net-shaped sieve are installed on the vibrating grading sieve basket. According to the combine-harvester for the rapes, the rice and wheats, due to the fact that the sieve-piece angle-adjustable sieve is added on the vibrating grading sieve basket, on one hand, impurities can be further graded, on the other hand, the sizes of sieve openings can be controlled by adjusting angles of sieve pieces, and the combine-harvester for the rapes, the rice and wheats is capable of achieving the grading of the rice and wheats and the rapes.

Description

technical field [0001] The invention relates to a combine harvester, especially for the harvesting, threshing and clearing of rapeseed and rice and wheat. [0002] Choose an integrated rapeseed, rice and wheat combine harvester. Background technique [0003] At present, most combine harvesters work by first cutting the stalks and then threshing, which consumes a lot of force, too low power, and has a high rate of grain loss; cutting the stalks first cannot return the stalks to the field, and only incineration is carried out. A series of environmental pollution problems have been brought about. Chinese patent 200820065192 discloses a kind of " environmental protection harvester ". The patent includes a power mechanism, an ear feeding mechanism, an ear sending roller, an axial flow threshing device, a vibration cleaning device, a grain collection bin and a rotary tillage mechanism. This patent realizes the function of threshing and cutting grass first, and then burying the...

AI Technical Summary

Problems solved by technology

This patent realizes the function of threshing and cutting grass first, and then burying the stalks in the soil, but there are still some disadvantages: the particle shell separation device is composed of a vibration cleaning device, a shell blower fan, and a shell outlet. Vibration cleaning The sieve of the device is a mesh sieve, so the selection is not sufficient, and a large amount of debris remains in the harvested crops. If the mesh of the mesh sieve is too small, the selection efficiency is too low, and it cannot meet the requirements of harvesting and threshing and cleaning at the same time.

In addition, the vibration cleaning device of this patent cannot take into account the cleaning of rice, wheat and rapeseed

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