| 摘要 |
<p>The semi-mounted reversible plough has the beam (15) on which the shares (14) are mounted turning about the lengthwise axis of a drawbar (4) between two working positions 180 deg. apart and an intermediate position for travelling. The drawbar is coupled to the tractor by a hinge with a vertical axis (3), and supported at the rear end by a landwheel (17). The mounting frame (23) for the landwheel hinges on a vertical axis (22) at the rear end of the drawbar. The lengthwise plane of this frame is determined by a link (26) rocking in this plane, which extends through a set point on the beam.</p> |
