| 摘要 |
<p>The purpose of the invention is to create a forestry winch suitable for attachment to a tractor, by which coiling of a towing cable (2) should be performed in a controlled manner, which means that each disposable windings of said cable (2) on the surface of a winding drum (1) should be arranged side by side relatively to each other and without any transpositioning or overlapping, and that each overloading of said towing cable (2) and other components of a driving assembly due to towing of too heavy load should be excluded. To this aim, the winch is furnished-with-a-directing assembly (4), which is arranged between an upper pulley block (3) and said winding drum (1) and is freely rotatable or least pivotable at certain angle around the vertical geometric axis (40), wherein said winch moreover includes a dynamometer (46) suitable for measuring of tensioning force (F) within said towing cable (2), so that also the winding drum (1) can be controlled depending on each measured loading of the towing cable (2).</p> |
