公开(公告)号：US6083352A

公开(公告)日：2000-07-04

申请号：US183924

申请日：1998-10-30

申请人： Jorma Snellman ,  Erik Brox ,  Lars Gustavsson ,  Juha Mikko Tapani Kivimaa

发明人： Jorma Snellman ,  Erik Brox ,  Lars Gustavsson ,  Juha Mikko Tapani Kivimaa

IPC分类号： D21F3/02 ,  D21F3/00 ,  B29C43/46 ,  D21H11/00

CPC分类号： D21F3/0218

摘要： A shoe press for applying pressure to a moving web of paper or the like includes a press shoe extending along a full width of the web being carried through a nip defined between the shoe and a backing member, a support for the shoe, and a plurality of articulated hydraulic loading cylinders arranged between the support and the shoe for urging the shoe toward the backing member to apply pressure to the web. Each loading cylinder includes a single piston and first and second cylinders attached to the shoe and to the support, respectively. The opposite end portions of the piston are slidably received within the cylinders so as to define working chambers in the cylinders which are pressurizable by hydraulic fluid for urging the two cylinders away from each other. The piston engages the cylinders at seals which enable the piston to pivot with respect to both cylinders about axes parallel to and perpendicular to the machine direction so as to enable the loading cylinders to accommodate deformations and thermal expansion of the shoe in the cross-machine direction and to allow the shoe to pivot about an axis perpendicular to the machine direction.

摘要翻译： 用于向移动的纸幅等施加压力的靴式压榨机包括沿着幅材的整个宽度延伸的压榨靴，该压榨靴通过限定在鞋和背衬构件之间的辊隙，鞋的支撑件和多个 布置在支撑件和鞋之间的铰接液压加载缸，用于将鞋推向背衬构件以向腹板施加压力。 每个装载缸分别包括单个活塞和连接到鞋和支撑件的第一和第二缸。 活塞的相对端部可滑动地容纳在气缸内，以便限定气缸中的工作腔室，该工作腔室可由用于将两个气缸彼此远离的液压流体加压。 活塞在气缸密封处接合，使得活塞能够相对于两个气缸围绕平行于机器方向并垂直于机器方向的轴线枢转，以使加载气缸能够容纳鞋的跨机器方向的变形和热膨胀 并且允许鞋子围绕垂直于机器方向的轴线枢转。