METHOD FOR CONTROLLING OF TILLAGE DEPTH AND APPARATUS FOR PERFORMING THE SAME Russian patent published in 2007 - IPC A01B63/108 

FIELD: agriculture.

SUBSTANCE: method involves establishing carrier wheels of tillage tool at predetermined tillage depth; regulating position of upper and lower tie-rods of front tractor hitch relative to soil surface; after penetration of working devices into soil, positioning tillage tool frame and lower tie-rods in parallel with soil surface; positioning upper tie-rod is parallel with direction of action of soil draft upon working devices of tillage tool; controlling parallel position of upper tie-rod by zero value of mathematical expectancy of vertical acceleration measured in center of gravity of tillage tool; for cultivation, directing upper tie-rod end connected to tillage tool upward, for disking, directing this end downward relative to soil surface. Apparatus has front tractor hitch with upper and lower tie-rods and tillage tool frame with tine. Upper tie-rod is formed as hydraulic cylinder and double-armed lever. Hydraulic cylinder is pivotally connected to tine of tillage tool frame through stem and pivotally connected to one end of double-armed lever through body. Double-armed lever is pivotally mounted on pin of upper tie-rod of hitch and pivotally connected with its other end to tractor frame through hydraulic cylinder. Vertical acceleration sensor is positioned in center of gravity of tillage tool frame. Frame tine angular movement sensor is positioned on lower tie-rod. Acceleration and angular movement sensors are connected to inputs of control unit. Hydraulic distributor for hitch is connected to outputs of control unit.

EFFECT: improved quality of soil tillage process and reduced consumption of power for soil tillage process.

2 cl, 4 dwg