Combined harvester

Abstract

The invention discloses a combined harvester, which comprises a conveying trough used for conveying materials, a conveying and rubbing roller group arranged at the discharge end of the conveying trough and a cutting device located at the discharge side of the conveying and rubbing roller group, wherein the conveying and rubbing roller group includes a first conveying roller group and a second conveying roller group which are sequentially arranged along a material conveying direction, the first conveying roller group is close to the conveying trough, and the rotating speed of the second conveying roller group is greater than the rotating speed of the first conveying roller group. The combined harvester has a rubbing effect on the material in the conveying process, thereby facilitating volatilization of material moisture, and thus facilitating the subsequent cutting, namely, facilitating material cutting and the subsequent material conveying.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, and more specifically, relates to a combine harvester. Background technique [0002] Ramie belongs to the genus Ramie of the family Urticaceae and is a perennial herb. Ramie contains nutrients such as protein, lysine, carotenoids, riboflavin and calcium. It is a very ideal plant protein feed crop, and its nutrient content is higher than that of other pastures. Forage ramie is a specially selected forage ramie variety. Its biological yield is high. It can be harvested 8-10 times a year and can produce fresh stems and leaves up to 150,000kg / hm 2 , equivalent to 18t dry material. [0003] The industrialization of forage ramie has made some progress, but the level of mechanized harvesting is relatively lagging behind, which has become an important factor restricting its industrial development. The mechanization level of feed ramie is low. One of the important reasons is that ramie i...

AI Technical Summary

Problems solved by technology

[0003] The industrialization of feed ramie has made some progress, but the level of mechanized harvesting is relatively lagging behind, which has become an important factor restricting its industrial development

The mechanization level of feed ramie is low, one of the important reasons is that ramie is a bast fiber crop, its stems and leaves contain a lot of fibers, the fibers contain hemp bones, and the fresh stems of ramie have more water, which leads to the cutting of ramie. It is difficult to crush, and the ramie segment after cutting is relatively large, which will also affect the subsequent material transportation

[0004] In addition, the ramie combine harvester also has problems such as poor feedability of the header, high moisture content of ramie and easy blockage of the discharge port, etc.

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