ECOLOGICAL VERSION TRACTOR Russian patent published in 2004 - IPC

FIELD: mechanical engineering; agricultural tractors. SUBSTANCE: proposed tractor contains flat frame, driving axle, driving and support wheels with tires, cabin with controls, engine and transmission plant with transfer case, hydraulic cylinders and draft and lift hitch levers. Tractor is additionally furnished with stern and side spatial frames with propellers-rippers. Stern spatial frame with built-in driving axle is installed for rocking in longitudinal axial plane under action of hydraulic cylinder located on flat frame around pins secured on flat frame. Side spatial frames are installed fro rocking in longitudinal vertical plane around sleeves of driven shafts of their final drives under action of hydraulic cylinders located on cross beam of flat frame. Built0in driving axle of stern spatial frame and final drives of side spatial frames are connected to transfer case. Propellers-rippers are made in form of flexible members with catches installed with tilting in direction of their movement. EFFECT: reduced mass of tractor, increased capacity owing to improved traction properties, reduced energy consumption for tillage, reduced or eliminated compaction and grinding of soil layer. 2 dwg