High-efficiency cleaning device for turbo multi-duct blower

Abstract

The invention discloses a high-efficiency cleaning device for a turbo multi-duct blower. The device mainly comprises a material conveying uniform distribution device, a grain and impurity conveyer device, a cleaning device and a transmission device, and meets the requirement on high-efficiency cleaning of crops in a large feed quantity; the turbo multi-duct blower is large in flow, uniform in air speed at an air outlet, stable in airflow, high in anti-attenuation capacity, compact in structure and high in energy efficiency ratio; through the vibration of a material vibrating screen and multiple winnowing of the turbo multi-duct blower, clean grains fall into a grain auger and enter a grain box, and partial impurities fall into a secondary impurity auger, are uniformly distributed by a return plate and enter a screen surface to realize recleaning. The high-efficiency cleaning device can meet the requirement on high-efficiency high-performance cleaning operation of wheat, rice, rape, corn, soybean and other crops in the feed quantity of 5-8kg / s, and is small in cleaning loss, low in impurity rate, high in operating efficiency and compact in structure.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery cleaning device manufacturing, specifically a turbine multi-channel fan high-efficiency cleaning device, which can be widely used in high-performance cleaning operations of rice, wheat, rape, corn, soybeans and other crops. Good working performance, high working efficiency and compact structure. Background technique [0002] Most of the existing combine harvesters adopt wind screen type cleaning device. Most of the fans used are right-angle four-blade single-channel centrifugal fans, which have disadvantages such as unstable internal flow field, uneven wind speed at the air outlet, fast wind speed attenuation, and low energy efficiency ratio, which cannot meet the requirements of large feeding volume (≥5kg / s). Harvest needs. With the continuous increase of the feeding amount, the layer thickness of the extruded material is also increasing. During the primary air selection process ...

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to solve the technical shortcomings of the above-mentioned cleaning device and provide a high-efficiency cleaning device for turbine multi-channel fans, which can meet the feeding amount of 5-8kg / s wheat, rice, rapeseed, corn, soybean and other crops harvesting requirements, can solve the stratification problem of large feeding amount, improve screening efficiency, and has the characteristics of compact structure, high energy efficiency ratio, large flow rate, etc.

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