Abstract: An arrangement in connection with supporting a press roll which press roll includes a support shaft extending through a rotating roll shell in the axial direction and being supported using at least one bearing element in at least one bearing point to a support frame, such as a bearing block, and which arrangement includes a torque support for preventing the rotation of the support shaft. At least one torque support has been arranged to at least one of the bearing points inside a bearing housing or equivalent.

Abstract: A method for changing the distribution of the loading pressure prevailing in the press nip of a shoe press, which shoe press includes a number of adjacent loading elements (K) acting on the press shoe (70), the first end of the elements being supported on the supporting beam (12) of the shoe press and the other end on the press shoe (70). The loading elements (K) are moved in the machine direction (MD) in the space between the press shoe (70) and the supporting beam (12) by acting on the loading element (K) at least at the end adjacent to the press shoe in such manner that the end adjacent to the press shoe is moved in the machine direction (MD) in relation to the press shoe (70), and that the end of the loading element adjacent to the supporting beam (12) can be caused to freely assume a position in relation to the supporting beam (12), preferably at least during the transfer.

Abstract: A loading unit for a shoe press, especially designed to apply a load to the shoe (70) of the shoe press, said unit comprising a first cylinder part and a first piston part disposed in the cylinder part (6, 71), a first piston part (1, 114) arranged in the cylinder part, in which piston part the surface (2) facing towards the inner wall of the cylinder part is so shaped as to permit mutual tilting of the piston part and the cylinder part. The piston part (1) and/or the cylinder part (6) are/is provided with means for arranging a loading element (K) and/or the press shoe (70) to be movable in the longitudinal direction (MD) of the machine and that the piston part (1) and/or cylinder part are/is provided with means (22) for reducing lateral forces between the loading element and the shoe press supporting beam (12) or equivalent.

Abstract: A yoke assembly for connecting and securing to each other rolls forming a nip in an extended nip press, whereby at least one of the rolls of the extended-nip press includes loading means for loading the endless-loop blanket of one roll against the other one of the extended-nip press rolls so as to establish the nip. The rolls are dismountably connected to each other and the yoke assembly includes rotatable connecting members for detachably connecting the rolls to each other by their bearing blocks. The connecting member includes a first clamping surface adapted slidably rotatable on the respective mating surface of a first roll bearing block so that the first clamping surface and the respective mating surface of the first roll bearing block to be connected therewith form a pivotal joint about which the connecting member can be rotatably disengaged from the mating surface of a second roll bearing.

Abstract: A method for changing the distribution of the loading pressure prevailing in the press nip of a shoe press, which shoe press comprises a number of adjacent loading elements (K) acting on the press shoe (70), the first end of said elements being supported on the supporting beam (12) of the shoe press and the other end on the press shoe (70). The loading elements (K) are moved in the machine direction (MD) in the space between the press shoe (70) and the supporting beam (12) by acting on the loading element (K) at least at the end adjacent to the press shoe in such manner that the end adjacent to the press shoe is moved in the machine direction (MD) in relation to the press shoe (70), and that the end of the loading element adjacent to the supporting beam (12) can be caused to freely assume a position in relation to the supporting beam (12), preferably at least during the transfer.

Abstract: A loading unit for a shoe press, especially designed to apply a load to the shoe (70) of the shoe press, said unit comprising a first cylinder part and a first piston part disposed in the cylinder part (6, 71), a first piston part (1, 114) arranged in the cylinder part, in which piston part the surface (2) facing towards the inner wall of the cylinder part is so shaped as to permit mutual tilting of the piston part and the cylinder part. The piston part (1) and/or the cylinder part (6) are/is provided with means for arranging a loading element (K) and/or the press shoe (70) to be movable in the longitudinal direction (MD) of the machine and that the piston part (1) and/or cylinder part are/is provided with means (22) for reducing lateral forces between the loading element and the shoe press supporting beam (12) or equivalent.

Abstract: A coupling apparatus (12) for a rod (7), such as a coating rod or the rod of a metering rod, used in a paper or board machine or equivalent, in which apparatus, there is between a first coupling element (5) and a second coupling element (6) a coupling piece (4) the length of which is changeable in the axial direction for connecting the rod to an actuator (1), in which coupling piece (4) the first coupling element (5) and the second coupling element (6) have been coupled for conveying rotational force, and in which apparatus, there is arranged between the first and the second coupling element, around the coupling piece (4) a protecting part (2) which functions as a preload element, and that the apparatus is installed on one or both sides of the rod.

Abstract: An apparatus in connection with a press roll which press roll comprises a rotating belt shell (1), a fixed advantageously non-rotatable support beam (2) axially extending through the belt shell and advantageously having a stub shaft at its each end, two belt-shell ends (3, 4) axially displaceable on the support beam, advantageously on each stub shaft, and fastening elements for fastening the edges on the side of each belt-shell end of the belt shell to each belt-shell end. The apparatus comprises a first support element (13), which is arranged movably to the support beam (2), most advantageously on its stub shaft, and supported by which support element (13) the belt-shell end (3, 4) is arranged bearing-mountedly, whereby the support element (13) and the support beam (2), most advantageously a stub shaft, are arranged to operate together as the moving devices of the axial displacement of at least one belt-shell end.

Abstract: An arrangement in connection with supporting a press roll which press roll comprises a support shaft (2) extending through a rotating roll shell (1) in the axial direction and being supported using at least one bearing element (14) in at least one bearing point (3, 4) to a support frame (5), such as a bearing block, and which arrangement comprises a torque support for preventing the rotation of the support shaft (2). At least one torque support (11) has been arranged to at least one of the bearing points (3, 4) inside a bearing housing (5) or equivalent.

Abstract: A shoe roll of a shoe press for use in a papermaking machine, the shoe roll including a blanket, or endless belt, which houses a shoe assembly that, in cooperation with an external backing roll, forms an extended nip proper. The shoe press includes an oil circulation piping system for removing the oil from the interior of the shoe roll and transferring the oil to an oil trap during the running of the machine, whereby the piping system also includes a suction fan connected thereto. The device is implemented by way of connecting an oil siphon to the oil circulation piping system, the oil siphon adapted to move towards and away from the blanket in the interior of the shoe roll so that, when the roll is stopped, the siphon removes the excess oil from the interior of the blanket by a pressure differential generated by of the suction fan.

Abstract: A method for tightening a shoe press roll mantle and/or reducing its wear, in which method the shoe press used comprises a press roll (1) and a backing roll, said press roll (1) comprising a rotating, liquid-impermeable roll mantle (2), a solid and preferably non-rotatable support beam (3) going axially through the roll mantle and having a stub shaft (4, 5) at each end of it, at least one press shoe supported by the support beam and having a concave surface part, elements for pressing the concave surface part against the roll mantle so that the mantle together with the backing roll can form a pressing zone, two roll mantle end pieces (6, 7) axially movable on each stub shaft, fastening elements for fastening the axial ends of the roll mantle to each roll mantle end piece, and at least one element for tightening the elastic roll mantle and/or moving it axially on each respective stub shaft.

Abstract: A method for setting a position of a shoe in an extended-nip press having a press roll and a backing roll, said press roll including a rotating endless-loop blanket of a flexible, liquid-impervious material, a rigid stationary roll support beam extending through an interior of endless blanket, a shoe element with a concave top face mounted above the roll support beam, and a loading element for loading the shoe element by pressing the top face thereof against the endless-loop blanket to make the blanket form a press nip zone in cooperation with the backing roll. The shoe element connects to the loading element by a detachable saddle element mountable between the shoe element and the loading element and by setting the position of the shoe element relative to the loading element through changing a mutual disposition of the saddle element and the shoe element.

Abstract: A yoke assembly is disclosed for connecting and securing to each other rolls (1, 2) forming a nip in an extended nip press, whereby at least one of the rolls (1) of the extended-nip press includes loading means (3), advantageously at least one loading shoe for loading the endless-loop blanket (4) of one roll (1) against the other one (2) of the extended-nip press rolls so as to establish a nip (N), wherein the lower roll (1) and the upper roll (2) are dismountably connected to each other and the yoke assembly connecting the rolls (1, 2) of the extended-nip press to each other includes rotatable connecting members (7, 8) by means of which the extended-nip press rolls (1, 2) are detachably connected to each other by their bearing blocks (5, 6).

Abstract: The invention relates to a press roll (1) comprising a flexible rotating endless-loop blanket (3) of a liquid-impervious material, two disc-shaped roll heads (4, 5), and a clamp element (14) filled with a pressurized medium for clamping the lateral rims (21) of the blanket (3) to the respective ones (4, 5) of the roll heads. The invention is implemented by adapting between the pressurized-medium-filled clamp element (14) and the blanket (3) an annular ring (18) serving to press the rim of the blanket (3) during the pressurization of said clamp element against the inner rim surface (15) of a sector plate (7) and, respectively, serving to contract the clamp element (14) when the pressure of the clamp element (14) is removed or lowered.

Abstract: A shoe roll (1) of a shoe press is disclosed for use in a paper-making machine, the shoe roll comprising a blanket, or an endless belt, which houses a shoe assembly that in cooperation with an external backing roll forms an extended nip proper and the shoe press including an oil circulation piping system (10, 11) performing the removal of oil from the interior of the shoe roll (1) to an oil trap during the running of the machine, whereby the piping system also comprises a suction fan connected thereto. The invention is implemented by way of connecting to the oil circulation piping (10, 11) an oil siphon (9) adapted movable along the blanket in the interior of the shoe roll (1) so that the excess oil can be removed by means of the siphon during the time the roll is stopped from the interior of the blanket by a pressure differential generated by of the suction fan.

Abstract: A method is disclosed for setting the position of the shoe in an extended-nip press, whereby the extended-nip press used in the method comprises a press roll (2) and a backing roll (1), said press roll (1) comprising a rotating endless-loop blanket (3) of a flexible, liquid-impervious material, a rigid and advantageously stationary roll support beam (4) that extends axially through the interior of the endless blanket (3), at least one shoe element (8) resting on the roll support beam (4) and having a concave top face, and a loading element (6) for loading the shoe element (8) by way of pressing the concave top face thereof against the flexible endless-loop blanket (3) so as to make the blanket (3) form a press nip zone (N) in cooperation with the backing roll (1).

Abstract: A method for tightening a shoe press roll mantle and/or reducing its wear, in which method the shoe press used comprises a press roll (1) and a backing roll, said press roll (1) comprising a rotating, liquid-impermeable roll mantle (2), a solid and preferably non-rotatable support beam (3) going axially through the roll mantle and having a stub shaft (4, 5) at each end of it, at least one press shoe supported by the support beam and having a concave surface part, elements for pressing the concave surface part against the roll mantle so that the mantle together with the backing roll can form a pressing zone, two roll mantle end pieces (6, 7) axially movable on each stub shaft, fastening elements for fastening the axial ends of the roll mantle to each roll mantle end piece, and at least one element for tightening the elastic roll mantle and/or moving it axially on each respective stub shaft.

Abstract: The invention relates to a press roll (1) comprising a flexible rotating endless-loop blanket (3) of a liquid-impervious material, two disc-shaped roll heads (4, 5), and a clamp element (14) filled with a pressurized medium for clamping the lateral rims (21) of the blanket (3) to the respective ones (4, 5) of the roll heads. The invention is implemented by adapting between the pressurized-medium-filled clamp element (14) and the blanket (3) an annular ring (18) serving to press the rim of the blanket (3) during the pressurization of said clamp element against the inner rim surface (15) of a sector plate (7) and, respectively, serving to contract the clamp element (14) when the pressure of the clamp element (14) is removed or lowered.

Abstract: An apparatus for displacing the roll mantle end pieces of shoe press, said shoe press comprising a press roll (1) and a backing roll, said press roll (1) comprising a rotating, liquid-impermeable roll mantle (2), a solid and preferably non-rotatable support beam (3) going axially through the roll mantle and having a stub shaft (4, 5) at each end of it, at least one press shoe supported by the support beam and having a concave surface part, elements for pressing the concave surface part against the roll mantle so that the mantle together with the backing roll can form a pressing zone, two roll mantle end pieces (6, 7) axially movable on each stub shaft, fastening elements for fastening the axial ends of the roll mantle to each roll mantle end piece. The apparatus comprises a multi-chamber cylinder unit (8) functionally connected to both roll mantle end pieces, said cylinder unit being disposed inside the support beam (3) and used to move both roll mantle end pieces (6, 7).

Abstract: An extended-nip press is disclosed comprising a press roll (2) and a backing roll (1), wherein the press roll (2) comprises a rotating endless-loop blanket (3) of a flexible, liquid-impervious material, a rigid and advantageously stationary roll support beam (4) that extends axially through the interior of the endless blanket (3), at least one shoe element (8) resting on the roll support beam (4) and having a concave top face, and loading means (6) for loading the shoe element (8) by way of pressing the concave top face thereof against the flexible endless-loop blanket (3) so as to make the blanket (3) form a press nip zone (N) in cooperation with the backing roll (1), said loading means (6) comprising a linear array of loading units (6′) aligned along the axial direction of the press roll (2), each one of the loading units comprising a functionally cooperating piston-cylinder unit.