Unloading device, agricultural machinery with the same and unloading method

Abstract

The invention discloses an unloading device, agricultural machinery with the same and an unloading method. The unloading device comprises a grain tank and a horizontal auger. The grain tank is provided with a first unloading hole through which grains are arrayed to the horizontal auger. The unloading device further comprises an unloading valve which controls opening and closing of the first unloading hole. According to the unloading device, opening and closing of the unloading hole of the grain tank are controlled through the arranged unloading valve, when unloading is of no need, the unloading valve can close the unloading hole at any time, the grains in the grain tank are prevented from being arrayed to the horizontal auger, the grains in the grain tank can be prevented from being accumulated on the horizontal auger and a back unloading cylinder, accordingly, when the unloading hole is continuously opened for unloading, the horizontal auger and the back unloading cylinder cannot be blocked, the horizontal auger can still rotate to convey grains, working efficiency is improved, in addition, the size of an opening of the unloading hole of the grain tank can be controlled through the unloading valve, and therefore unloading speed can be adjusted.

Description

Technical field [0001] The invention belongs to the technical field of agricultural machinery. Specifically, the invention relates to a grain unloading device for a grain combine harvester. Background technique [0002] Existing agricultural machinery, such as the harvester, is equipped with a grain tank for temporarily storing grains during harvesting, and there is also a horizontal auger at the bottom of the grain bin. The grains are transported by the horizontal auger and at the same time directly above the horizontal auger. There is an inverted V-shaped folded plate, and there is a certain gap between the folded plate and the side wall of the grain box, so that the grain enters the horizontal auger through the gap. Generally, the gap between the folded plate and the side wall of the grain bin is adjusted before harvesting to control the speed of unloading grain. If the gap is too large, the horizontal auger will be blocked; if the gap is too small, it will affect the unloadin...

AI Technical Summary

Problems solved by technology

However, in some cases, the unloading of the grain does not completely unload the grain at one time. At this time, it is necessary to pause and wait for the grain to be unloaded again. Since the horizontal auger and the rear unloading cylinder are full of grains, when the unloading clutch is turned on, it is easy to Blockage occurs, resulting in damage to the transmission parts of the auger, which eventually leads to failure to unload grain

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