Air-blowing type double-duct lifting and separating device

Abstract

The invention relates to an air-blowing type double-duct lifting and separating device (b). The air-blowing type double-duct lifting and separating device (b) comprises a fan, a collection hopper and a grain and impurity separating device. The fan is connected with two air inlet pipes. One air inlet pipe is connected with an air inlet in the grain and impurity separating device, the other air inlet pipe is connected with the collection hopper, and the other end of the collection hopper is communicated with a feeding opening of the grain and impurity separating device. A spiral conveying device is arranged at the bottom of the grain and impurity separating device. The air-blowing type double-duct lifting and separating device has the advantages of being simple and reasonable in structure, high in practicability, convenient to manufacture, mount and maintain, and good in using effect.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and relates to a wind-blown double-air duct lifting and separating device used on a combine harvester. Background technique [0002] The existing rice combine harvesters include full-feed and half-feed combine harvesters, most of which use grain reel, grain divider, header, walking mechanism, grain conveying device, threshing mechanism, grain screening mechanism, grain lifting mechanism, etc. Mechanisms and other complex working structures, the large and medium-sized combine harvesters of the above structure are not suitable for the actual production conditions of the mountainous and hilly landforms in southern and southwest China due to their complex structure, large volume, heavy weight, and high price; Small combine harvesters have low work efficiency and low work efficiency, can't achieve the effect of large and medium-sized harvesters, and can't adapt to the needs of different...

AI Technical Summary

Problems solved by technology

[0002] The existing rice combine harvesters include full-feed and half-feed combine harvesters, most of which use grain reel, grain divider, header, walking mechanism, grain conveying device, threshing mechanism, grain screening mechanism, grain lifting mechanism, etc. Mechanisms and other complex working structures, the large and medium-sized combine harvesters of the above structure are not suitable for the actual production conditions of the mountainous and hilly landforms in southern and southwest China due to their complex structure, large volume, heavy weight, and high price; Small combine harvesters also have low work efficiency and low work efficiency, and cannot achieve the effect of large and medium-sized harvesters, and cannot adapt to the needs of different purchase groups and regions with different geographical conditions.

Images