The invention discloses a gear matched type
threshing and screening device for
sunflower seeds. The gear matched type
threshing and screening device comprises a base, a
threshing tank, a conical threshing
barrel, a threshing head and a screening tank. The threshing tank is arranged on the base, the conical threshing
barrel is horizontally arranged inside the threshing tank, a threshing cavity is arranged inside the conical threshing
barrel, the threshing head is arranged inside the threshing cavity, and the screening tank is slidably mounted on at least two groups of support slide bars. The gear matched type threshing and screening device has the advantages that
rubbing effects can be realized by threshing protrusions on the threshing head and threshing protrusions inside the threshing cavity, and accordingly threshing can be carried out for the
sunflower seeds; the gear matched type threshing and screening device with V-shaped
grinding cavities is long in threshing
stroke as comparedwith common threshing devices, accordingly, effective threshing can be carried out, threshing effects can be improved, and the purity of the
sunflower seeds can be guaranteed; a second connecting rodcan be driven by a third connecting rod to move in the left-right directions, accordingly, the screening tank can be driven to move in the left-right directions, the
sunflower seed sieving speeds canbe greatly increased, and the work efficiency can be greatly improved.