FIELD: agriculture.
SUBSTANCE: tool includes a hub with needles attached thereto that form a frontally mounted disk. Each needle has a round cross section with its end sheared askew to form a cutting blade. A hard alloy material is melted onto the shear surface. The needles shear is directed backwards while the shear angle is less than or is equal to that of the disc frontal installation.
EFFECT: design solution enables improved resistance to wear and provide for a self-sharpening mode of needle disks.
3 dwg
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RU2704847C1 |
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|
RU2399178C1 |
