FIELD: mechanical engineering.
SUBSTANCE: invention relates to a node for a dosing system of a spreading machine for spreading of bulk material. The node contains the first element equipped with the first hole, the second element equipped with the second hole, and a drive connected to at least one of the first and the second elements and made with the possibility of provision of a moving force for relative movement between the first and the second elements for adjustment of a size of a dosing hole provided with an overlapping area, in which the first and the second hole are overlapped. The first and the second elements are movable by means of relative movement to the first position providing a dosing hole with the first hole size and the second position other than the first position and providing a dosing hole with the second hole size other than the first hole size. At the same time, a central section of the dosing hole is locally fixed, when the first and the second elements are moved between the first and the second positions. A dosing system for a spreading machine for spreading of bulk material, containing the above-mentioned node, and a spreading machine for spreading of bulk material, including the above-mentioned system with the node, are additionally provided.
EFFECT: invention provides improved quality of dosing of bulk material.
13 cl, 7 dwg
