| 摘要 |
<p>An extended nip (N) is formed between a counter roll (50) and a shoe roll (10), which shoe roll (10) comprises a stationary support structure (12) and a flexible shell (30) rotating around it. The shell (30) is supported at its inner surface on the support structure (12) by means of a press shoe (11) and associated loading members (14, 20, 114, 120) spaced from one another in a direction transverse to the machine direction and situated in at least one row. The loading members comprise a first cylinder (14) supported on the support structure (12) and a piston (20, 120) disposed in the first cylinder, in which connection the press shoe (11) and the shell (30) surrounding it can be loaded against the counter roll (50) by means of said loading members. The first cylinder (14) is disposed in a cylindrical base part (13) so as to be movable in a plane perpendicular to the centre axis of the first cylinder (14), which base part (13) is attached to the support structure (12). The first cylinder (14) is additionally relieved in the radial direction by means of a pressure medium supplied into a pressure chamber (18, 118) of the first cylinder (14), by which pressure medium the press shoe (11) is also loaded.</p> |
