Combined cleaning equipment of raw grain air sieve

Abstract

Combined cleaning equipment of a raw grain air sieve comprises a framework, a winnowing sieve, a crank and connecting rod mechanism, an air blast system, a transmission system, a dust collection cover, a vibration classifying sieve and a spiral light impurity conveyer. The winnowing sieve is a dustpan type groove, an included angle alpha is formed between the bottom of the winnowing sieve and the horizontal plane, the winnowing sieve, a supporting rocking bar and the framework form a four-bar linkage, the crank and connecting rod mechanism drives the four-bar linkage to form a crank four-bar linkage, the front end of the winnowing sieve corresponds to an inlet of the vibration classifying sieve, an included angle beta is formed between the bottom of the vibration classifying sieve and the horizontal plane, the rear end of the winnowing sieve corresponds to an inlet of the spiral light impurity conveyer, the transmission system is connected with a rotor of an air blower, the crank four-bar linkage and the spiral light impurity conveyer by belts, the air blast system is arranged under the winnowing sieve, the rotor of the air blower is mounted in an air bellow, the air bellow is connected with the winnowing sieve via flexible materials, the dust collection cover covers the winnowing sieve, the spiral light impurity conveyer, the air blast system, the transmission system and the crank four-bar linkage, and a grain inlet and a dust discharge opening are arranged on the upper portion of the dust collection cover. The combined cleaning equipment is high in yield and impurity removal rate.

Description

technical field [0001] The invention relates to the technical field of grain cleaning and impurity removal equipment, in particular to a combination cleaning equipment of raw grain air sieve. Background technique [0002] In recent years, combine harvesters or threshers are mostly used for grain harvesting. When harvesting, wheat and rice straw are harvested and collected together with wheat seedlings, rice seedlings, and rice heads. Although the combine harvester or thresher separates the straw, the raw grain The content of straw segments is still high; corn threshing has also been replaced by mechanical threshers, and corn raw grains contain a large amount of corn cob shell fragments. Existing cleaning equipment: Grain winnowing machine can only separate the stalks and seedling leaves in the raw grain, but it can't do anything to the core, rod shell, large and heavy impurities in the raw grain. Cylinder primary cleaning sieves, vibrating grading sieves, etc. cannot co...

AI Technical Summary

Problems solved by technology

Cylinder primary cleaning sieves, vibrating grading sieves, etc. cannot completely separate the straw segments, cores, stick shells, and seedlings from raw grains such as wheat, rice, corn, and soybeans, which brings considerable difficulties to grain storage and processing. Increased storage, processing, and logistics costs

Images