WORKING TOOL SECTION OF COMBINED RIDGE FORMER Russian patent published in 2004 - IPC

FIELD: agricultural engineering, in particular, machines for preparing of soil for potato planting in ridges. SUBSTANCE: section has disk knife, mellower and ridge forming units, said parts being mounted in succession on frame. Ridge forming units are made in the form of two spherical disks with concave surfaces facing longitudinal axis of symmetry of section. Similar rolls-deformers are arranged in symmetry in front of mellower. Plane of rotation of rolls-deformers coincides with advancement direction of section. Front pair of rolls-deformers are arranged above mellower front edge so that their axes of rotation coincide with front edge of mellower in vertical plane. Rear pair of rolls-deformers are mounted on peripheral part of ridge former section and offset backward to value equal to radius of roll-deformer. Lower ends of spherical disks are positioned above rear edge of mellower, with space between their front ends being equal to width of mellower. Symmetrical profiled roll is arranged behind spherical disks, with plane of rotation of profiled roll coinciding with advancement direction. Width of profiled roll is equal to distance between lower ends of spherical disks. EFFECT: improved quality of preparing soil for potato planting on ridges and reduced power consumption. 3 cl, 3 dwg