Stem cutting device for full-feeding combined harvester

Abstract

The invention relates to a stem cutting device for a full-feeding combined harvester, which comprises an independent movable cutter, a fixed cutter and an auxiliary movable cutter, wherein the independent movable cutter is arranged on an independent movable cutter shaft; the fixed cutter is matched with the independent movable cutter to take a cutting effect; the independent movable cutter rotates under the drive of a power mechanism; the auxiliary movable cutter is positioned at the rear section of a threshing and grass cutting roller and is arranged on a threshing rack bar of the threshing and grass cutting roller; and the auxiliary movable cutter is matched with the independent movable cutter to take a cutting effect. By position setting of the auxiliary movable cutter and the independent movable cutter, the auxiliary movable cutter and the independent movable cutter are matched to carry out primary cutting on stems, and the independent movable cutter and the fixed cutter are matched to carry out secondary cutting on the stems, so that the stems are cut more finely, the grass cutting effect is good and the stem cutting device is difficult to block. Moreover, mutual matching between the auxiliary movable cutter and the independent movable cutter also helps to discharge grass in the cutting-up process and is more beneficial for successfully carrying out cutting up so as to prevent blockage.

Description

technical field [0001] The invention relates to the technical field of harvesters, in particular to a stalk chopping device for full-feed combine harvesters. Background technique [0002] At present, the threshed stalks of the vertical axial flow full-feed combine harvester are usually directly discharged from the threshing chamber to the field. Because the discharged stalks are long, they are not easy to rot after falling into the field, which affects the growth of subsequent crops; To solve this problem, farmers often burn the stalks that fall into the field, which not only pollutes the environment, but also destroys the organic components of the stalks, so that the stalks cannot be returned to the field well. [0003] In order to return the discharged stalks to the field better, a stalk chopping device is usually installed at the grass discharge port of the threshing chamber. Existing full-feed combine harvesters usually use rotating movable blades to crush the stalks. S...

AI Technical Summary

Problems solved by technology

[0005] For this reason, what the present invention aims to solve is the technical problem of poor grass discharge and unsatisfactory grass-cutting effect caused by the chopping device on the existing vertical axial flow harvester being easily blocked. good combine harvester with stalk chopping device

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