| 摘要 |
<p>The device is entirely located on the plough and comprises a computer (13), with a memory containing the inherent parameters of the plough and the tractor; two position sensors (15, 16) sending a signal representing the angle of rotation of the frame (5) with respect to a coupling bar (4) of the tractor and respectively the angle of rotation of the support arm (9) of the wheel (8) with respect to the frame (5); a revolutions counter sending to the computer a signal representing the distance travelled; a computer (13) generating a control signal for the electrovalve (19) which regulates the retraction and extension of the jack (11) adjusting the height of the frame (5) with respect to the rear wheel (8), in order to obtain a progressive insertion and removal of the working tools at the start and end of a furrow. <IMAGE></p> |
