Rolling stand roll neck seal
AssigneeSiemens Industry, Inc.
InventorRaymond P. Dauphinais
Life of this patent
Estimating the term…
Abstract
A rolling mill roll neck is sealed by interposing a seal between a roll flinger having a first axial surface and an opposing second axial surface of a roll housing retaining plate. The seal is biased into contact against one of the axial surfaces with a pressurized fluid source, such as compressed air. As the seal wears during roll neck operation the pressurized fluid maintains biasing contact between the seal and the axial surface. The remainder of the intact seal is remains pressed into contact with the mating, opposing axial surface, for example that of a roll flinger or a retaining plate. Advantageously the seal is housed in a stationary retaining plate that is in opposed axial relationship with a rotating flinger.
Claims20
A rolling mill roll neck sealing apparatus, comprising:
- a roll having a circumference and axial length;
- a first axial retaining element circumscribing the roll having a first axial surface;
- a seal circumscribing the roll, having a first axial seal face in contact the first axial surface and a second axial face;
- a cavity in communication with the seal, for communication with a pressurized fluid source that biases said seal first axial face into contact with said first axial surface.
A rolling mill roll neck sealing apparatus, comprising:
- a roll having a circumference and axial length;
- a first flinger circumscribing the roll having a first axial surface;
- a retaining plate circumscribing the roll having a second axial surface in opposed, spaced relationship with the first axial surface;
- a first seal circumscribing the roll and interposed between the first and second axial surfaces, the seal having a first axial seal face in contact with one of the axial surfaces and a second axial face;
- a first cavity defined between the first seal second axial face and the other one of said axial surfaces, for communication with a pressurized fluid source that biases said first seal first axial face into contact with said one of the axial surfaces.
A method for sealing a rolling mill roll neck, comprising:
- interposing a first seal between a roll first flinger having a first axial surface and a retaining plate having a second axial surface in opposed spaced relationship with the first axial surface;
- and
- biasing the first seal against one of the axial surfaces with a pressurized fluid source.
Dependencies are inferred from the claim text.