Up-and-down swinging type grain screening device

Abstract

The invention discloses an up-and-down swinging type grain screening device. The grain screening device comprises a base, a screening vehicle, a crankshaft, connecting rods, a driving mechanism and avertical plate arranged on the base; one end of the screening vehicle is hinged to the vertical plate; the bottom of the other end of the screening vehicle is hinged to the upper ends of the connecting rods; the lower ends of the connecting rods are hinged to the crankshaft; the crankshaft is connected with the driving mechanism; a detachable screening frame is arranged on the screening vehicle; and an impurity collecting cover is arranged below the screening vehicle. The grain screening device is used for filtering dust and tiny impurities in grains and drives a motor to drive the crankshaftto rotate after being started, the screening vehicle is driven to shake up and down through the connecting rods, the driving mechanism adopts a gear motor, the structure is compact, the occupied areais small, and the stability is high. According to the grain screening device, screens having different sizes of meshes can be changed according to the particle sizes of screened articles, the grain screening device is applicable to screening of various grains, high in working efficiency and good in screening effect, and the manpower and the time are greatly saved.

Description

technical field [0001] The invention belongs to the technical field of agricultural appliances, and in particular relates to an up and down swing type grain sifting device. Background technique [0002] At present, agricultural production has gradually realized automated production, getting rid of the traditional manual planting and harvesting methods, greatly saving labor, improving production efficiency, and liberating farmers from heavy physical labor. , Hull removal and impurity removal must be carried out before harvesting and peeling for primary processing. Large-scale processing plants generally have special equipment, and the cost of use is relatively high. For small and medium-sized farms, there is no condition to use mechanized equipment, and most of them use manual sifting, which is time-consuming and labor-intensive and the screening quality is not good. Contents of the invention [0003] Purpose of the invention: Aiming at the deficiencies in the prior art, t...

AI Technical Summary

Problems solved by technology

[0002] At present, agricultural production has gradually realized automated production, getting rid of the traditional manual planting and harvesting methods, greatly saving labor, improving production efficiency, and liberating farmers from heavy physical labor. , Hull removal and impurity removal must be carried out before harvesting and peeling for primary processing. Large-scale processing plants generally have special equipment, and the cost of use is relatively high.

For small and medium-sized farms, there is no condition to use mechanized equipment, and most of them use manual sifting, which is time-consuming and labor-intensive and the screening quality is not good.

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