Small size combine harvester

Abstract

The invention discloses a small size combine harvester which is high in adaptability and threshing rate, convenient to lift, thorough in sorting, simple in structure and convenient to demount and mount. The small size combine harvester comprises a header device, a middle conveying device, a threshing device, a grain conveying device, an operating device, a lifting device, a walking device, a grain sorting device and a power device. According to the small size combine harvester, the angles between elastic claws of reels and crops to be harvested can be adjusted through eccentric wheels, harvesting is more thorough, and waste of grains is reduced; a threshing drum is good in threshing effect, smooth in crop straw discharging and more thorough in threshing; the height adjusting range of the harvester meets the harvesting operation demands of grain in various height states, and meanwhile the harvester is simple in structure and convenient to use; a walking speed changing box is higher in reliability, convenient to assemble, reasonable in gear shifting, light and easy to carry; a fan device capable of sucking in impurities while blowing out the impurities is adopted in a sorting device, losses of the grains in the harvesting process of the harvester can be reduced, and the grains are sorted more thoroughly.

Description

technical field [0001] The invention relates to an agricultural machine, in particular to a small combine harvester. Background technique [0002] For hilly areas and some small plots of land, the realization of agricultural machinery is indispensable for the support of small-scale agricultural machinery, and the current small-scale agricultural machinery is often to achieve simple or single function, or a reduced version of large-scale machinery, which often leads to poor harvest quality. High, poor adaptability, and more and more unable to meet farmers' needs for high-quality agricultural machinery. [0003] Existing small combine harvesters generally mainly include a header part, an intermediate conveying device, an intermediate conveying part, an operating part, a threshing part, a grain feeding device, a cleaning device, an operating panel, a lifting part, a walking part, a grain cleaning part, a power part, which has the following defects; [0004] 1. Header part: ma...

AI Technical Summary

Problems solved by technology

[0005] 2. The threshing part: it is mainly separated from the drum. For the threshing device of the harvester, the unreasonable design of the device will affect the threshing effect

However, the hydraulic lifting cannot blindly increase the stroke to increase the lifting height; the cable lifting system can not meet the requirements except that the stroke cannot meet the requirements, and the lifting process is laborious;

[0008] 5. Walking part: At present, the known small harvester gearbox mainly has two structures: one is composed of a housing, a transmission gear, a differential, and a braking device for the left and right output shafts. The structure is relatively complicated, and the braking device It is easy to fail due to water ingress; the second is composed of housing, transmission gear, steering gear, output shaft, etc., and the strength of the output shaft of the housing has problems, which is not easy to assemble

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