Claims
- 1. A shoe press for treating a traveling web of paper or board, comprising:
first and second press elements arranged to form an extended nip therebetween in which the web is pressed, the first press element comprising a press shoe movable along a pressing direction toward and away from the second press element, an impermeable belt arranged to travel in an endless loop and make sliding contact with a pressing surface of the press shoe, and a power transmission member structured and arranged to urge the press shoe in the pressing direction toward the second press element to press the web in the nip; and a shoe support device comprising a first support element arranged such that a support surface of the first support element faces an opposing support surface of the press shoe with a space being defined between said support surfaces, the shoe support device further comprising a second support element in the form of at least one rolling body arranged in the space between said support surfaces and in rolling contact with said support surfaces such that upon movement of the press shoe relative to the second press element the at least one rolling body rolls along said support surfaces and rotates about an axis of rotation that moves relative to and in the same direction as the press shoe.
- 2. The shoe press of claim 1, wherein said support surfaces of the first support element and press shoe extend parallel to said pressing direction along which the press shoe is moved to press the web.
- 3. The shoe press of claim 1, wherein the power transmission member is supported on a stationary support and the first support element is fixed relative to said stationary support.
- 4. The shoe press of claim 1, wherein the shoe support device further comprises support and journaling members for said at least one rolling body, the support and journaling members comprising at least one journaling pin for each rolling body for defining said axis of rotation.
- 5. The shoe press of claim 4, wherein the support and journaling members further comprise a link-arm system for supporting each rolling body via said at least one journaling pin.
- 6. The shoe press of claim 5, wherein the link-arm system is pivotally connected to a fixed member of the first press element and is pivotally connected to the press shoe.
- 7. The shoe press of claim 5, wherein the link-arm system comprises a link arm that supports the journaling pin via a resilient arrangement in said link arm to absorb stresses caused by rotary movements of the press shoe about a rotary axis that is perpendicular to a machine direction along which the web travels.
- 8. The shoe press of claim 4, wherein the support and journaling members comprise a power cylinder system for supporting each rolling body via said at least one journaling pin.
- 9. The shoe press of claim 1, wherein the support surfaces of the first support element and press shoe extend in a machine direction such that the shoe support device reacts lateral forces acting on the press shoe in a cross-machine direction during operation.
- 10. The shoe press of claim 1, wherein the support surfaces of the first support element and press shoe extend in a cross-machine direction such that the shoe support device reacts longitudinal forces acting on the press shoe in a machine direction during operation.
- 11. The shoe press of claim 10, further comprising a second shoe support device arranged to react lateral forces acting on the press shoe in a cross-machine direction during operation, the second shoe support device comprising at least a pair of support surfaces one of which is fixed relative to the press shoe and the other of which is stationary and which support surfaces extend in a machine direction and define a space therebetween, and at least one rolling body arranged in said space so as to roll along said support surfaces about a rotation axis that moves relative to and in the same direction as the press shoe.
- 12. The shoe press of claim 11, wherein the second shoe support device comprises support and journaling members for said at least one rolling body, the support and journaling members comprising at least one journaling pin for each rolling body for defining said axis of rotation.
- 13. The shoe press of claim 12, wherein the support and journaling members for the second shoe support device comprise a link-arm system for supporting each rolling body via said at least one journaling pin.
- 14. The shoe press of claim 13, wherein the link-arm system for the second shoe support device is pivotally connected to a fixed member of the first press element and is pivotally connected to the press shoe.
- 15. The shoe press of claim 12, wherein the support and journaling members for the second shoe support device comprise a power cylinder system for supporting each rolling body via said at least one journaling pin.
- 16. A shoe support device for a shoe press of a machine for manufacturing or treating a paper or cardboard web, wherein the shoe press includes first and second press elements arranged to form an extended nip therebetween in which the web is pressed, the first press element comprising a press shoe movable along a pressing direction toward and away from the second press element, an impermeable belt arranged to travel in an endless loop and make sliding contact with a pressing surface of the press shoe, and a power transmission member structured and arranged to urge the press shoe in the pressing direction toward the second press element to press the web in the nip, the shoe support device comprising:
a first support element arranged such that a support surface of the first support element faces an opposing support surface of the press shoe with a space being defined between said support surfaces, the shoe support device further comprising a second support element in the form of at least one rolling body arranged in the space between said support surfaces and in rolling contact with said support surfaces such that upon movement of the press shoe relative to the second press element the at least one rolling body rolls along said support surfaces and rotates about an axis of rotation that moves relative to and in the same direction as the press shoe.
- 17. The shoe support device of claim 16, further comprising support and journaling members for said at least one rolling body, the support and journaling members comprising at least one journaling pin for each rolling body for defining said axis of rotation.
- 18. The shoe support device of claim 17, wherein the support and journaling members further comprise a link-arm system for supporting each rolling body via said at least one journaling pin.
- 19. The shoe support device of claim 18, wherein the link-arm system is pivotally connected to a fixed member of the first press element and is pivotally connected to the press shoe.
- 20. The shoe support device of claim 18, wherein the link-arm system comprises a link arm that supports the journaling pin via a resilient arrangement in said link arm to absorb stresses caused by rotary movements of the press shoe about a rotary axis that is perpendicular to a machine direction along which the web travels.
- 21. The shoe support device of claim 17, wherein the support and journaling members comprise a power cylinder system for supporting each rolling body via said at least one journaling pin.
- 22. A shoe press for a machine for manufacturing or treating a paper or cardboard web, the shoe press comprising:
first and second press elements arranged to form an extended nip therebetween in which the web is pressed, the first press element comprising a press shoe movable along a pressing direction toward and away from the second press element, an impermeable belt arranged to travel in an endless loop and make sliding contact with a pressing surface of the press shoe, a support stand for supporting the press shoe, and a power transmission member structured and arranged between the support stand and the press shoe to urge the press shoe in the pressing direction toward the second press element to press the web in the nip; and a shoe support device arranged to react lateral forces acting on the press shoe in a cross-machine direction during operation, the shoe support device comprising at least first and second pairs of support surfaces one of which support surfaces of each pair is fixed relative to the press shoe and the other of which support surfaces of each pair is fixed relative to the support stand, and which support surfaces extend in a machine direction and define a space therebetween, and at least one rolling body arranged in the space between each pair of support surfaces so as to roll along said support surfaces about a rotation axis that moves relative to and in the same direction as the press shoe.
- 23. The shoe press of claim 22, wherein the shoe support device further comprises support and journaling members for each said rolling body, the support and journaling members comprising at least one journaling pin for each rolling body for defining said axis of rotation.
- 24. The shoe press of claim 23, wherein the support and journaling members further comprise a link-arm system for supporting each rolling body via said at least one journaling pin.
- 25. The shoe press of claim 24, wherein the link-arm system is pivotally connected to a fixed member of the first press element and is pivotally connected to the press shoe.
- 26. The shoe press of claim 22, wherein the first and second pairs of support surfaces are formed by first and second support elements spaced apart along the cross-machine direction and a third support element arranged between and spaced from the first and second support elements, the first pair of support surfaces being formed by the first support element and one side of the third support element, the second pair of support surfaces being formed by the second support element and an opposite side of the third support element, the first and second support elements being affixed to one of the press shoe and the support stand and the third support element being affixed to the other of the press shoe and the support stand.
- 27. A shoe support device for a shoe press of a machine for manufacturing or treating a paper or cardboard web, wherein the shoe press includes first and second press elements arranged to form an extended nip therebetween in which the web is pressed, the first press element comprising a press shoe movable along a pressing direction toward and away from the second press element, an impermeable belt arranged to travel in an endless loop and make sliding contact with a pressing surface of the press shoe, a support stand for supporting the press shoe, and a power transmission member structured and arranged to urge the press shoe in the pressing direction toward the second press element to press the web in the nip, the shoe support device reacting forces that act on the press shoe in a cross-machine direction and comprising:
at least first and second pairs of support surfaces, one of the support surfaces of each pair being fixed relative to the press shoe and the other of the support surfaces of each pair being fixed relative to the support stand, support surfaces of each pair extending in a machine direction and defining a space therebetween, and at least one rolling body arranged in the space between each pair of support surfaces so as to roll along said support surfaces about a rotation axis that moves relative to and in the same direction as the press shoe.
- 28. The shoe support device of claim 27, further comprising support and journaling members for each said rolling body, the support and journaling members comprising at least one journaling pin for each rolling body for defining said axis of rotation.
- 29. The shoe support device of claim 28, wherein the support and journaling members further comprise a link-arm system for supporting each rolling body via said at least one journaling pin.
- 30. The shoe support device of claim 29, wherein the link-arm system is pivotally connected to a fixed member of the first press element and is pivotally connected to the press shoe.
- 31. The shoe support device of claim 27, wherein the first and second pairs of support surfaces are formed by first and second support elements spaced apart along the cross-machine direction and a third support element arranged between and spaced from the first and second support elements, the first pair of support surfaces being formed by the first support element and one side of the third support element, the second pair of support surfaces being formed by the second support element and an opposite side of the third support element, the first and second support elements being affixed to one of the press shoe and the support stand and the third support element being affixed to the other of the press shoe and the support stand.
Priority Claims (1)
Number |
Date |
Country |
Kind |
0000899-5 |
Mar 2000 |
SE |
|
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is a continuation of International PCT Application No. PCT/SE01/00533 filed Mar. 15, 2001, incorporated herein by reference, which application designated inter alia the United States and was published under PCT Article 21(2) in English. This application also claims the benefit of U.S. Provisional Patent Application No. 60/200,203 filed Apr. 28, 2000, which is incorporated herein by reference.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/SE01/00533 |
Mar 2001 |
US |
Child |
10241917 |
Sep 2002 |
US |