Synchronous different-amplitude embedment kneading type grain repeated husking and impurity removal vibrating screen

Abstract

The invention discloses a synchronous different-amplitude embedment kneading type grain repeated husking and impurity removal vibrating screen. The synchronous different-amplitude embedment kneading type grain repeated husking and impurity removal vibrating screen comprises a machine frame, a transmission mechanism, a first synchronous vibrating mechanism and a second synchronous vibrating mechanism. The transmission mechanism is installed on the front portion of the machine frame, the first synchronous vibrating mechanism and the second synchronous vibrating mechanism are installed in the middle of the machine frame, and the second synchronous vibrating mechanism is arranged on the top of the first synchronous vibrating mechanism in an embedded mode. A transmission shaft is installed on the machine frame through bearings, and first eccentric wheels and second eccentric wheels are fixedly arranged on the transmission shaft. Outer rockers are hinged to outer lifting lugs, and inner rockers are hinged to inner lifting lugs. A first vibrating frame is hinged to the outer rockers through lifting arms, and a second vibrating frame is hinged to the inner rockers. Third kneading materialguide pieces and first kneading material guide pieces are arranged in a crossed mode, and fourth kneading material guide pieces and second kneading material guide pieces are arranged in a crossed mode. A circular screen face is fixedly arranged at the bottom of the first vibrating frame. The synchronous different-amplitude embedment kneading type grain repeated husking and impurity removal vibrating screen is high in screening efficiency, good in repeated husking effect, high in cleaning rate of separated objects, low in impurity rate, simple in structure and high in reliability.

Description

technical field [0001] The invention relates to an agricultural machinery cleaning vibrating screen, in particular to a synchronous different-width nested rubbing type grain re-removing and impurity-removing vibrating screen. Background technique [0002] Cleaning is an important part of crop harvesting and grain processing. The cleaning operation is to separate the grain grains from the extruded matter through a vibrating sieve. For the separated grains, the cleanliness has an important impact on subsequent storage, transportation, processing and other links. The grain cleaning rate is the main index to measure the quality of the cleaning operation. Practice has proved that the performance of the vibrating screen is an important guarantee for achieving a high cleaning rate. Therefore, it is of great practical significance to improve the structure of the vibrating screen and expand the function of the vibrating screen. [0003] During the cleaning operation, the operating ob...

AI Technical Summary

Problems solved by technology

Unremoved components are caused by insufficient threshing of crops by the threshing device, which accounts for a relatively large proportion of the exfoliated materials. The unremoved components mainly include coated grains and broken ears. Through the vibrating sieve, they are mixed in the isolate, resulting in an increase in the impurity content of the isolate, which seriously reduces the cleaning quality; the broken ears are large in size and cannot pass through the vibrating sieve. There are a lot of grains on the ears, if the broken ears are discharged out of the machine, it will cause a large grain loss

Therefore, in order to improve the cleaning rate of isolates and reduce the loss of cleaning, during the cleaning operation, the vibrating screen not only separates the cleaned grains from the extruded materials, but also carries out the cleaning of unremoved components such as coated grains and broken ears. Effective treatment, however, in the currently commonly used cleaning devices, the vibrating screen cannot re-remove the coated grains and broken ears, and cannot fundamentally improve the cleaning efficiency and reduce the impurity content of the isolates

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