Coupling bionic self-leveled type vibratory cleaning device for harvesting of high-humidity corn kernels

Abstract

A coupling bionic self-leveled type vibratory cleaning device for harvesting of high-humidity corn kernels comprises a machine frame, a right hood, a left hood, an upper cleaning mechanism, a transmission mechanism, a lower cleaning mechanism, a front kernel conveying auger, a rear kernel conveying auger, a leveling shock-absorption seat, an air inlet, a rear kernel discharging outlet, a front kernel discharging outlet and a bottom hood. Micro-vibration of an upper cleaning screen and a lower cleaning screen in the horizontal direction and the vertical direction is achieved through horizontalshock-absorption springs and vertical shock-absorption springs, a bionic ridge-shaped hood of the upper cleaning screen avoids adhesion of high-humidity corn and an upper cleaning screen base body, and thus the cleaning loss rate of the high-humidity corn is lowered; a bionic ball-shaped hood of the lower cleaning screen prevents high-humidity corn cobs from penetrating through lower cleaning screen holes, and thus the cleaning rate is increased; the leveling shock-absorption seat enables the upper cleaning mechanism, the lower cleaning mechanism and the machine frame to be maintained horizontal through leveling balls and leveling ball seats, non-uniform distribution of the high-humidity corn on the surfaces of the upper cleaning screen and the lower cleaning screen due to inclination is prevented, and cleaning efficiency is prevented from being lowered due to unevenness of field landforms.

Description

technical field [0001] The invention relates to an agricultural machine, in particular to a coupling bionic self-leveling vibration cleaning device for harvesting high-humidity corn grains. Background technique [0002] Corn is the main food crop in my country, and corn harvesting machinery is the main model of agricultural machinery. The corn harvesting process can be divided into ear picking type and grain direct harvesting type. Harvesting machinery for corn grain direct harvesting includes working devices such as ear picking, peeling, threshing, and cleaning. Among them, the cleaning device has long-term problems such as mandrel blockage of the screen hole, bract leaf adhesion to the screen surface, and air field interference with the cleaning movement, resulting in The corn kernels do not penetrate the cleaning unit sufficiently, and large quantities of kernels are expelled from the cleaning unit, causing severe cleaning losses. In addition, the moisture content of cor...

AI Technical Summary

Problems solved by technology

[0003] At present, the cleaning device of corn grain direct harvesting machines at home and abroad mainly realizes the horizontal reciprocating motion of the screen surface through the four-bar mechanism. The mechanical properties are fully integrated, resulting in the existing cleaning device's sieve hole clogging and serious adhesion on the sieve surface, low seed penetration rate, uneven distribution of the cleaning mixture on the sieve surface, high cleaning loss rate, and large operating power consumption

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