Winnowing piece

Abstract

The invention discloses a winnowing piece, and belongs to a crop seed impurity removal machine. The winnowing piece comprises winnowing plates; winnowing holes are formed in the winnowing plates; thewinnowing holes in every two vertically adjacent winnowing plates are mutually staggered in position; the winnowing plates comprise the winnowing holes, lower plates and middle plates; the middle plates and the lower plates are sequentially connected; the winnowing holes are evenly formed in the middle plates; a separating strip is arranged between every two adjacent winnowing holes in each middleplate; the winnowing holes in the middle plates are the same in size and shape, and the distances between the adjacent winnowing holes are the same, that is, the separating strips are the same in size and shape; the included angle between the plane where the middle plates on the winnowing plates of the winnowing piece are located and the direction of wind blown by a fan is an acute angle; the included angle between the plane where upper plates on the winnowing plates of the winnowing piece are located and the plane where the middle plates are located is an obtuse angle; the winnowing plates of the winnowing piece are mutually in parallel; and the distances between the vertically adjacent winnowing plates are the same, and the winnowing holes in every two vertically adjacent winnowing plates are mutually staggered in position. According to the winnowing piece, impurities in cereals can be removed, and moldy or non-plump seeds are removed.

Description

[0001] The application of the present invention is a divisional application, the application number of the parent application: 2016106474655; the name of the parent application: a wind selection part and its wind selection method; the application date of the parent application: 2016-08-09. technical field [0002] The invention relates to the field of machinery for removing impurities from crop seeds, in particular to a wind selection part. Background technique [0003] When traditional crop seeds are harvested, impurities such as chaff, chaff, dust, and soil in the grain will be removed by manual operation or high-altitude throwing, and the wind will blow away the chaff and soil in the grain. It is difficult to remove impurities such as heavy stones that exist in the grain drying process, and the manual operation is labor intensive, high in cost, and low in work efficiency. [0004] With the development of agricultural automation, automated combine harvesters have replaced ...

AI Technical Summary

Problems solved by technology

Its shortcoming is that this patent is used to solve the separation of impurities such as heavy stones and seeds, and the deflector provided in this technical solution forms a plurality of exhaust outlets in the exhaust air duct, so as to form a whirlwind , using the principle of cyclone suction to separate the heavy stones and other impurities in the seeds from the seeds, and cannot remove the lighter impurities of the seeds, as well as the mildewed and unfulfilled seeds

Images