PLATFORM-MAKER Russian patent published in 2013 - IPC A01C11/00 A01C5/00 A01G23/00 

FIELD: agriculture.

SUBSTANCE: invention relates to forestry industry, in particular to devices for forming recess-platform around stumps and their purification from the soil within the depth of the platform. The platform-maker comprises a frame with working bodies placed on it, drive and transmission. The frame is made reverse-rotational at an angle of ±410°. The working bodies are made as rotors with radially located rippers-purifiers on the horizontal axis of rotation. The rotors are connected to the frame by means of hinged four-link suspensions with double-rod hydraulic cylinder located between them, changing the distance between the rotors, depending on the diameter of the stump. The rippers-purifiers are made flexible, of round section.

EFFECT: constructive implementation enables to reduce the dynamic loads and to increase the reliability of operation of tree-planting machines due to removal of the abrasive environment and providing lowering of the stumps below the level of soil surface by milling machines because of the intense wear of their working bodies.

2 cl, 3 dwg