| 摘要 |
<p>The invention concerns a soil tillage roller with helical elements, comprising a carrier frame (2) provided with two vertical lateral supports (3, 4), and at least two helical elements (5, 6) of similar pitch mounted each on a horizontal central shafts (7 and 8 respectively) whereof the ends co-operate with bearings arranged on said corresponding vertical lateral supports (3, 4). The helical elements (5, 6) are produced in a metal strip inclined relative to the vertical by an angle ranging between 5° and 85°, and are located one behind the other offset by a half-pitch. The central shafts (7, 8) are spaced apart form each other by one helical element minus the width of the strip.</p> |
