An intermediate conveying device of a harvester for preventing grass blocking and returning grass

Abstract

The invention discloses a harvester intermediate conveying device with a grass blocking and returning preventing function. The device comprises driving chain wheels, driven chain wheels, a feeding drive shaft, a driven drive shaft, conveying row chains, grass-returning-preventing thumbing teeth and a conveying groove body. The conveying row chains are connected between the driven chain wheels andthe driving chain wheels, multiple fixing plates are evenly distributed on the conveying row chains, multiple conveying thumbing teeth are installed on the fixing plates, the conveying thumbing teethon the adjacent fixing plates are staggered, and the grass-returning-preventing thumbing teeth are installed on the upper portion of the conveying groove body in a bolt fastening or welding mode. In this way, crop straw can be effectively conveyed through the staggered conveying thumbing teeth, the gaps between the ends of the conveying thumbing teeth and a bottom plate of the conveying groove body can be small, the ends of the conveying thumbing teeth stretch into the crop straw, the grass-returning-preventing thumbing teeth cooperate with the conveying thumbing teeth for use, and blockage caused when the crop straw enters the upper space of the conveying groove body is avoided.

Description

technical field [0001] The invention relates to the technical field of harvesters, in particular to an intermediate conveying device of a harvester for preventing grass from blocking and returning grass. Background technique [0002] The combine harvester is a machine that connects the harvester and the thresher with an intermediate conveying device. It can complete multiple operations such as cutting, threshing, separation and cleaning in the field at one time, so as to directly obtain clean grains. Therefore, its production efficiency very high. With the continuous improvement of the degree of agricultural mechanization in our country, the proportion of combine harvesters in harvesting operations will gradually increase. In many industrially developed countries abroad, the grain harvesting is done with a combine harvester. [0003] In the full-feed harvester, the grain stalks and ears are all fed into the threshing device for threshing. The grain is fed from one end of ...

AI Technical Summary

Problems solved by technology

When the conveyor chain (belt) is tensioned, the gap between the rake teeth and the bottom plate is too large. At this time, the L-shaped or U-shaped scraper cannot penetrate into the interior of the crop straw but can only act on the surface of the crop straw. The crop stalks entering the tank are under less force from the L-shaped or U-shaped scraper, and the bottom crops only rely on other crops to move, and the transportation is not thorough. Over time, the accumulation of crops at the bottom of the tank increases, which will cause blockage. Easily damaged conveyor chain row (belt) and V-shaped transmission belt

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