Armando S. Martins - Cumberland RI, US Dennis Shriner - Worcester MA, US Peter N. Osgood - Upton MA, US
Assignee:
Morgan Construction Company - Worcester MA
International Classification:
F16J015/32 F16C033/76 B21B031/07
US Classification:
277353, 277552, 384485, 72247
Abstract:
An inner seal ring is disclosed for use in an oil film bearing for a roll in a rolling mill. The roll has a neck with an intermediate section tapering from an end face to a reduced diameter end section contained within a sleeve. The sleeve is fixed in relation to the roll neck and is journalled for rotation in a bushing contained within a chock. A flexible neck seal is mounted on the intermediate section of the roll neck for rotation with the roll within a seal end plate fixed to the chock. The inner seal ring comprises a circular midsection with an annular face on one side and with inner and outer flanges projecting from an opposite side. The inner flange is configured to engage the neck seal, the outer flange is configured to coact in spaced relationship with the seal end plate to define a first labyrinth, and the annular face is contoured to coact in an abutting relationship with the roll end face in defining a second labyrinth.
Dennis H. Shriner - Blaine WA, US Eric L. Johanson - Worcester MA, US Peter N. Osgood - Westboro MA, US
Assignee:
Morgan Construction Company - Worcester MA
International Classification:
B21B 31/07
US Classification:
72245, 72237
Abstract:
An oil film bearing is disclosed for a rolling mill roll having a tapered neck leading to a reduced diameter end section. The bearing comprises an internally tapered sleeve received in a seated position on the tapered roll neck. The sleeve is journaled for rotation in a bushing fixed within a chock assembly. A tubular piston is received on and fixed relative to the reduced diameter end section of the roll. A cylinder is internally subdivided by the piston into first and second chambers. A sleeve ring abuts an end of the sleeve and a circular thrust component is interposed between and arranged to overlap adjacent segments of the sleeve ring and the piston. One or the other of the first and second chambers may be pressurized, whereupon pressurization of the first chamber will cause the cylinder to axially advance and act via the thrust component and the sleeve ring to urge the sleeve into its seated position, and pressurization of the second chamber will cause the cylinder to axially retract and act via the chock assembly and the bushing to withdraw the sleeve from its seated position.
Armando Martins - Cumberland RI, US Peter Osgood - Upton MA, US Dennis Shriner - Webster MA, US
International Classification:
F16C043/04
US Classification:
384/584000
Abstract:
An apparatus for retaining a bearing assembly on the neck of a roll in a rolling mill. The apparatus includes an adaptor element having outwardly projecting first lugs circumferentially separated by first flutes. Fasteners detachably secure the adaptor element to a distal end of the roll neck. A locking element, which comprises an integral component of the bearing assembly, has inwardly projecting second lugs circumferentially separated by second flutes. The locking element is rotatable between an unlocked position at which its second lugs are aligned with the first flutes of the adaptor element to accommodate axial shifting of the bearing assembly onto and off of the roll neck, and a locked position at which its second lugs are aligned with the first lugs of the adaptor element to axially retain the bearing assembly on the roll neck.
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