| 摘要 |
<p>The invention relates to an installation comprising a first part and a second part (3, 4) that can be moved in relation to said first part (5). The first part (5) has a strut-type part that extends in the direction of movement and is in particular elongated and the second part comprises at least two rotatably mounted discs (3, 4) that can be driven, each disc having a conical section and the rotational axes of the discs intersecting (3, 4). The tip of the cone or taper direction of the conical sections faces the intersection point and the rotational axes run perpendicular to the direction of movement. The strut-type part (5) is positioned between the conical sections of the discs (3, 4) and each disc (3, 4) has permanent magnets (20, 21) around its circumference in each conical section, the direction of magnetisation of each of said magnets pointing in an alternate direction to the direction of magnetisation of the neighbouring permanent magnet (20, 21) in the circumferential direction and in particular perpendicular to the surface of each conical section.</p> |
