Bract leaf returning corn harvester

Abstract

The invention relates to a corn harvester, in particular to a corn harvester for returning bracts to a field, and belongs to the technical field of farm machinery. The corn harvester comprises a frame, a bract chopping device and a straw smashing device, wherein the bract chopping device is arranged on the frame, and is arranged above the straw smashing device; the bottom of the bract chopping device is connected with a discharge pipe; a discharge opening of the discharge pipe is arranged in a gap between the straw smashing device and the frame on the front side, and corresponds to a blanking opening of the straw smashing device. According to the corn harvester, the bracts can be chopped and crushed completely and thoroughly and are really returned to the field.

Description

technical field [0001] The invention relates to a corn harvester, in particular to a corn harvester for returning bract leaves to the field, and belongs to the technical field of agricultural machinery. Background technique [0002] At present, the corn harvester includes the functions of stalk cutting, ear picking, peeling, threshing, and straw treatment. When harvesting, the ears are picked under the growth state of the corn, and the ear stalks are pulled off, so that the ears enter the peeling device and the corn bracts are removed. The leaves are stripped off, and the stripped corn bracts are discharged directly into the farmland. Due to the large volume and slow decomposition of uncrushed bracts, it is difficult to return to the field as fertilizer, and it is easy to block the sowing port of the planter, affecting farmers' cultivation. [0003] In order to improve this problem, some harvesters are equipped with a bract chopping device. Although it plays a certain role ...

AI Technical Summary

Problems solved by technology

Due to the large volume and slow decomposition of uncrushed bracts, it is difficult to return them to the field as fertilizer, and it is easy to block the sowing port of the planter, affecting farmers' cultivation

[0003] In order to improve this problem, some harvesters are equipped with a bract chopping device. Although it plays a certain role in chopping the bracts, there are still many deficiencies. The power conveyed by the bracts is insufficient, and it is easy to cause blockage. Moreover, the moving knife is a large fan. When rotating at high speed, the fan will become a strong resistance for the bracts to pass through, and it is easy to cause blockage of the bracts, and the processing capacity is small. On the other hand, the bracts after the chopping are directly discharged and returned to the field, because the bracts of the chopping are in strips, after directly returning to the field, it will still have adverse effects on the cultivation of the peasants, and the processing is not thorough enough, and because the car body Due to limited space, it is difficult to add additional crushing equipment to further crush the bracts

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