Giant rice centrifugal cleaning funnel sieve device and harvester

Abstract

The invention provides a giant rice centrifugal cleaning funnel sieve device and a harvester. The giant rice centrifugal cleaning funnel sieve device comprises a centrifugal cleaning funnel sieve, andthe centrifugal cleaning funnel sieve comprises a spindle, blades, a screw flow guide plate, a concentrator bowl body, a funnel sieve and an outer shell. In operation of the giant rice centrifugal cleaning funnel sieve, a threshing mixture separated in threshing by a threshing device falls into the concentrator bowl from a funnel, and by high-speed rotation of the concentrator bowl body, grains are separated out through pores of the concentrator bowl body under the centrifugal action while other residues are left in the concentrator bowl body, enter a residue discharging pipeline along the screw flow guide plate and are discharged into farmland, and the clean grains are pushed to a grain storage tank by a grain conveying screw. The giant rice centrifugal cleaning funnel sieve device and the harvester have advantages that adaptability to characteristics of large thickness of stalks and large quantity of leaves in the giant rice threshing mixture is realized, cleaning of the giant ricethreshing mixture can be realized while an air screen type cleaning device is substituted, and accordingly vibration of the whole device is reduced, and a great working environment is provided for a driver.

Description

technical field [0001] The invention belongs to the research field of harvesters, and in particular relates to a giant rice centrifugal cleaning funnel screen device and a harvester. Background technique [0002] The biological characteristics of the newly bred "giant rice" high-yield and high-quality rice varieties are quite different from those of ordinary rice. The existing rice combine harvesters in China can basically meet the quality requirements of ordinary hybrid rice harvesting operations. Higher requirements are placed on the adaptability requirements of the combine harvester. As the "digestive system" of the combine harvester, the cleaning device's performance directly affects the working performance and efficiency of the whole machine. Wait for the debris to clear out of the machine to obtain clean grains. At present, the cleaning devices of combine harvesters are divided into two categories: airflow type and wind screen type, and there are more wind screen typ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention provides a giant rice centrifugal cleaning funnel sieve device, which uses the centrifugal principle to separate the giant rice discharge mixture discharged into the centrifugal cleaning funnel sieve into clean grains and residual mixture, thereby solving the problem of stalk It is difficult to clean the mixture of giant rice with thick leaves and many leaves, so as to improve the cleaning rate of giant rice

Images