TRACTOR UNIT Russian patent published in 2005 - IPC

FIELD: agricultural tractor units for presowing mechanical treatment of soil for mellowing thereof.

SUBSTANCE: tractor unit has caterpillar tractor, tractor-mounted tool, hitch formed as rotary frame pivotally attached with its front end on tractor carcass symmetrically with respect to left-hand and right-hand caterpillars and pivotally connected with its rear end to tractor-mounted tool by means of left-hand and right-hand tie-rods, which are hinged with their front ends to hitch rotary frame and with their rear ends to frame of tractor-mounted tool. Pivotal joints are adapted for angular displacement only in vertical plane. In order to prevent hitch from falling upon disconnecting of tractor-mounted tool from tractor, hitch rotary frame cooperates with its rear end with transverse supporting frame fixed on tractor base. In order to provide adaptive controlling of tractor unit path curvature, hitch is equipped with hydraulic control cylinder, one end of which is pivotally connected to hitch rotary frame and other end is connected to tractor carcass.

EFFECT: increased efficiency due to providing for changing of angle between longitudinal axes of plow and tractor carcass to thereby keep stabilized rectilinear advancement of tractor unit during performing of agricultural processes.

2 dwg