A grass discharging crushing and throwing device matched with a multi-drum threshing device

Abstract

The invention provides a grass discharging, smashing and scattering device matched with a multi-roller thresher. The grass discharging, smashing and scattering device comprises a transverse axial flow roller, a concave grid and a smashing and scattering device; the concave grid comprises a side plate, a grass outlet bottom plate, a first grass guide plate and a second grass guide plate; the transverse axial flow roller is characterized in that a plurality of threshing parts surround a threshing roller shaft by a wide support disk, and the transverse axial flow roller comprises the threshing parts, the wide support disk, a transverse axial flow roller shaft and hook face swath boards; the transverse axial flow roller shaft penetrates through the concave grid and is fixed on the side plate of the concave grid through a support seat; the wide support disk is fixed on the transverse axial flow roller shaft; the plurality of threshing parts surround the transverse axial flow roller shaft, are fixed on the wide support disk, and are parallel to the transverse axial flow roller shaft. By adopting the grass discharging, smashing and scattering device, an effect of cutting up stalks is improved, power consumption in cutting up is reduced, and scattering width is remarkably increased, thus meeting the need of a rice-wheat combine-harvester with great feed quantity on stalk smashing and whole-width scattering, and realizing comprehensive utilization of the stalks.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a grass-discharging, crushing and spreading device matched with a multi-drum threshing device. Background technique [0002] With the development of agricultural mechanization, domestic agricultural products have basically realized the mechanization of harvesting, but in rural areas, during the harvest season, on the one hand, the grain is collected and returned to the warehouse, and on the other hand, the straw is disposed of. Straw treatment methods are generally incineration, crushing, landfill or composting, but incineration will seriously pollute the environment. With the continuous improvement of people's environmental protection awareness, environmental protection issues have attracted more and more attention from the whole society, and straw incineration is also a government department. Processing that is expressly prohibited. The straw crushing and returning to the...

AI Technical Summary

Problems solved by technology

Although this kind of grass discharge device improves the grass discharge efficiency and can realize the expansion of the grass discharge width, it is limited by the length of the threshing drum, the number of movable knives and fixed knives in the threshing drum is limited, and the crop crushing accuracy is not high. In addition, The crushing of crops in the threshing drum will cause the crushed crop stems to enter the cleaning device and increase the cleaning load, which cannot meet the needs of grass discharge and crushing under the condition of large feeding amount, and the oblique weeding plate realizes the expansion of grass discharge width limited

[0005] A shredder suitable for self-propelled combine harvesters disclosed in Chinese patent CN204031820U is provided with a housing that is matched with the grass outlet of the combine harvester, the shredder assembly is installed in the housing, and the shredder There is a guide plate to realize the discharge of grass on the ground and can spread the broken straw evenly on the ground. Although this scheme is easy to disassemble and assemble, and can realize the even spreading of the straw to the ground, but the straw discharged from the threshing drum When entering the grinder, the crop stem is parallel to the grinder, the crushing accuracy of the crop stem is not high, the power consumption of the grinder is large, and the width of the straw discharge cannot be effectively expanded

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