| 摘要 |
<p>1. Agricultural ground preparation apparatus comprising a tyned rotor (10) which breaks up or ploughs up the ground and which is drivable in a direction of movement which assists the travel of the apparatus, characterized in that the tynes (11) have respective holding arms (13) which are fixedly arranged on the rotor axle or rotor hub and also tyne pieces which carry out the working of the ground which are interchangeably held in the holding arms and which respectively form with the holding arms (13) an open angle in the direction of rotation, wherein the tyne pieces (14) have a tapered portion (100), which is inserted into a sleeve-like mount (18) on the holding arm (13), and are braced at the side remote from the rotor axle or hub of their thicker region (14') which adjoins the tapered portion (100), and which has a cross-section with an edge pointing in the direction of rotation of the rotor, against a bead-like reinforced edge (110) arranged on the holding arm (13) following the sleeve-like mount (18) ; and in that blades (12) are arranged at the free ends of the tyne pieces (14) which, as seen in the axial view of the tyned rotor (10), form an angle with a line which passes through the free end tangential to the rotor axis in such a way that the blades (12) attempt to lift the engaged earth during rotation (U) of the rotor (cutting action).</p> |
