Device intended to improve the ground adherence of tractors carrying ground-working tools

摘要

Agricultural machines. Device for improving the ground adherence of a tractor comprising a jack 7-17 constituting a third-point bar in a three-point lifting device on which is hitched a plough provided with a gauge wheel provided with electrical means for controlling, from the vertical forces which it undergoes, a hydraulic distributor 50-51 in order to feed the jack 7-17 in order to shorten the third-point bar or, on the contrary, to connect the latter to a feed tank 31 in order to obtain the extension of the said third-point bar characterised in that it comprises at least one pressurised oil accumulator 40-41 inserted between the distributor 50-51 and a constant-rate pump 30. IMAGE