BULK MATERIAL SOWING MACHINE Russian patent published in 2004 - IPC

FIELD: agricultural engineering. SUBSTANCE: machine has body with dosing shutter and fertilizer guide. Trimmer with rocking mechanism is mounted under fertilizer guide. Rocking mechanism is made in the form of four-link member. Trimmer is composed of drive and driven drums embraced with endless belt, whose upper run is flexure pressed by pressing drum made in the form of roll with sides. Pressing drum is made grooved, with grooves being formed of chevron type and working protrusions being arranged in Archimedes' spiral diverging from mid portion of drum roll to both sides. Pressing drum is alternatively made in the form of roll with continuous surface. Pivotal four-link member includes crank fixed on drive reducer shaft. Connecting rod is pivotally attached with its one end to crank and is pivotally attached with its other end to rocker arm, whose other end is rigidly connected with rocking movable trimmer frame. Rocker arm is provided with set of openings for adjustment of trimmer rocking amplitude. Connecting rod has two stems with tightening member or two planks with mounting openings at ends to be joined. Planks are secured with one another by means of pair of fastening bolts. Additional rocking of trimmer with respect to vertical rocking axis causes bulk material particles to be uniformly distributed over sector transverse to machine advancement direction. EFFECT: increased efficiency and uniform distribution of bulk material over field surface. 7 cl, 12 dwg