Structure between driving transmission and roll
AssigneeMetso Drives Oy
InventorsJaana Pienmäki, Timo Kukko, Asko Majori
Life of this patent
Estimating the term…
Abstract
The invention concerns a connecting structure (10) between a driving transmission (11) and a roll (100) driven through it. The driving transmission (11) includes an input shaft (12) in the drive, whereby through the input shaft (12) the drive is transferred to toothed gears and further to the roll jacket (100a) of the driven roll (100) to rotate it. The roll (100) includes a central static shaft (100b) and a bearing (G) to support it. In order to allow axial and radial motions of the roll's (100) roll jacket when the driving transmission (11) is in the fixed position, a seal (25) including a sliding ring (30) is fitted in between the driving transmission (11) and the roll (100).
Claims25
An arrangement in a paper machine, comprising:
- a roll having a roll shaft and a roll jacket;
- a driving transmission arranged to drive said roll and including an input shaft coupled to said roll jacket such that rotation of said input shaft causes rotation of said roll jacket;
- and
- a connecting structure arranged to connect said driving transmission to said roll jacket such that said roll jacket is axially and radially movable when said driving transmission is in a fixed position, said connecting structure comprising
- a seal arranged between said driving transmission and said roll, said seal including
- a seal case defining a seal cavity and rotatably coupled to said input shaft, and
- a sliding ring arranged in said seal cavity of said seal case to define a free space between said sliding ring and a bottom of said seal cavity, said sliding ring being slidable in a radial direction in said seal cavity;
- and
- a seal part connected to said roll jacket, said seal part defining a stop face for limiting radial movement of said sliding ring in the radial direction away from the bottom of said seal cavity.
A connecting structure for connecting a roll and a driving transmission which drives the roll, the driving transmission including an input shaft and the roll having a roll shaft and a roll jacket coupled to the input shaft such that rotation of the input shaft causes rotation of the roll jacket around the roll shaft, the connecting structure being arranged to enable axial and radial movement of the roll jacket when the driving transmission is in a fixed position, the connecting structure comprising:
- a seal adapted to be arranged between the driving transmission and the roll, said seal including
- a seal case defining a seal cavity and being adapted to be rotatably coupled to the input shaft, and
- a sliding ring arranged in said seal cavity of said seal case to define a free space between said sliding ring and a bottom of said seal cavity, said sliding ring being slidable in a radial direction in said seal cavity;
- and
- a seal part adapted to be rotatably connected to the roll jacket, said seal part defining a stop face for limiting radial movement of said sliding ring in the radial direction away from the bottom of said seal cavity.
Dependencies are inferred from the claim text.