Ear-picking unit of harvester for maize

Abstract

The invention discloses an ear-plucking device of a corn harvesting machine, which comprises an upper snapping roll and a lower snapping roll revolving relatively, the front parts of the upper snapping roll and the lower snapping roll are respectively provided with a cone shape diversion section, the middle part of the upper snapping roll is equipped with a spiral convex rib and the rear part thereof is provided with at least two thrusting straight convex ribs, and the middle part of the lower snapping roll is a smooth cylindrical surface and the rear part thereof is provided with at least two thrusting straight convex ribs, and the diversion sections on the upper snapping roll and the lower snapping roll are respectively equipped with spiral guiding convex ribs with opposite directions of rotation; and the thrusting straight convex ribs of the upper snapping roll are symmetrical to the thrusting straight convex ribs of the lower snapping roll with opposite turning directions. The invention can smoothly and rapidly lead maize straws in for facilitating the picking of corn ears and reducing the corn kernel loss and breakage during picking.

Description

technical field [0001] The invention relates to an auxiliary device on an agricultural harvesting machine, in particular to a corn harvesting machine ear picking device on a corn harvester. Background technique [0002] The corn harvester is very popular because of its convenient operation and high working efficiency. The current ear picking device on the corn harvester mainly includes two upper ear picking rollers and lower ear picking rollers with a spiral rib structure. The first half of the lower ear-picking roller is different from the ribs of the second half, so that when the ear-picking device is working, the corn stalk is pulled by the ribs of the upper ear-picking roller and the second half of the lower ear-picking roller, The ear roller and the ribs on the front half of the lower ear-picking roller cooperate to pick off the ears of corn. However, since the front half of the upper ear roller and the lower ear roller are all provided with convex ribs for ear pickin...

AI Technical Summary

Problems solved by technology

However, since the front half of the upper ear roller and the lower ear roller are all provided with convex ribs for ear picking, this not only makes the ear picking roller heavier, but also greatly increases the clamping of the ear of corn and causes the loss of corn kernels. And grain broken, affecting mechanical performance

However, the structure of the ribs in the second half of the upper ear roller and the lower ear roller is complicated, which makes it inconvenient to make, and the grip of the corn stalk is not ideal, which affects the picking of the ears of corn; The front end of the ear roller mostly adopts a simple cone-shaped structure, which has poor guiding ability to the corn stalk, so that the corn stalk cannot be smoothly introduced into the ear picking device, which affects the picking of corn ears and reduces the corn harvester. mechanical properties

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