| 摘要 |
<p>Apparatus for lifting and/or moving operations of drilling equipment on a surface (40), comprising a suspension device with a lifting arm, wherein the lifting arm comprises at least a first polygon (10) and a second polygon (20) that can be connected to one another, the first polygon (10) comprising: - a first beam (1) rotatably connected to a second beam (2); - the second beam (2) is rotatably connected to a third beam (3); - the third beam (3) is rotatably connected to a fourth beam (4); - the fourth beam (4) is rotatably connected to the first beam (1), where the fourth beam (4) is configured with a bend having an angle (4"') of less than 180 degrees and further where the fourth beam (4) is configured with a first set of connecting means (P1) for cooperative connection to the second polygon (20).</p> |
