Shoe press for paper or board machine - has cylinder part of piston cylinder arrangement used to urge shoe against counter=roll housed in support beam side of shoe

摘要

The cylinder (210B) part of the piston cylinder arrangement used to urge the shoe against the counter-roll is housed in the support beam side of the shoe. - The shoe press contains a press shoe (200) and a counter-roll (312) that combine to form an extended nip (N) for a paper or board web (W) and an endless press sleeve (311). A horizontal support beam (309) and a hydraulic piston-cylinder arrangement (210) for urging the press shoe against the counter-roll are mounted midway in the shoe press stand. A work region (201) in the piston-cylinder arrangement is supplied with hydraulic fluid. DESCRIPTION OF DRAWING(S) - Figure 1 shows a cross-sectional view of the shoe press looking in the running direction of the web. (101) Hydrostatic pocket; (102) Channel; (103) Profiled pipe; (104) Press shoe length side; (105) Screws; (105') Threaded holes; (107) Flanges; (108) Hole and choke passage; (200) Press shoe; (201) Piston cylinder arrangement work region; (202) Channel; (203) Hydraulic fluid pipe; (204) Press shoe length side; (205) Screws; (205') Threaded holes; (206) Hydraulic fluid channel; (207) Flanges; (208) Choke channel; (210) Piston cylinder arrangement; (210A) Piston; (210B) Cylinder; (211) Hydraulic fluid chamber; (212) Boring; (213) Choke passage; (214) O-ring; (309) Support beam; (311) Press sleeve; (312) Counter-roll; (A) Distance between highest point in shoe press and near side of support beam; (B) Distance between press shoe side of beam and the opposing side of the press shoe; (C) Press shoe height; (F) Press fe (N) Press nip; (W) Paper web.