| 摘要 |
FIELD: agriculture.SUBSTANCE: machine for seed presowing treatment includes bin, discharge chute and container. Latter consists of connected into a single process chain of two or more helical grinding drums in rigidly arranged one above other with opposite direction of helical lines. Drum inner surface is coated with rubber, and are installed in a closed on all sides transition covers, coated with rubber layer from inside box. Latter is elastically mounted on base with vibration exciter. Each of grinding drum perimeter represents multistart helical surface with helical grooves inside grinding drum. Helical grooves are made in form of curved pockets with centers of curvature located inside cross-section of grinding drum. Each drum is made of three and more twisted in longitudinal direction relative to longitudinal axis and bent in helical line in transverse direction on cylindrical mandrel rectangular strips to make grinding drum three and more inner curvilinear convex surfaces with curvature centers located inside grinding drum and forming laps inside grinding drum in form of screw blades throughout length of grinding drum from inlet to outlet.EFFECT: invention broadens technological capabilities, has simple design and higher efficiency.1 cl, 9 dwg |
