The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 1990
Filed:
Jun. 06, 1988
SMS Schloemann-Siemag Aktiengesellschaft, Dusseldorf, DE;
Abstract
The apparatus transmits a high shifting force reliably and has a simple and rapid assembly. The axial shifting occurs by a clamping device which is in releasable working connection with the roll stub shaft of a rolling-mill roll or the rotating shaft. The disengageable clamping junction is formed between the clamping device and roll stub shaft shaped to fit together. Especially the clamping device is formed as a compact unit comprising a clamping head with at least one axially precompressed compressible spring which acts on a plurality of clamping disks working as a clamping body. The clamping disks force a radially elastic clamping sleeve to grip the roll stub shaft. The clamping disks are releasable from a clamped position by a hydraulic pressurized medium against the action of the compressible spring. The clamping disks are supported axially on the one side on a portion of a housing of the clamping head and on the other side by an axially slidable hollow cylinder acted on by the compressible spring. The clamping sleeve is provided internally in the vicinity of the clamping disks acting on it with a shape which forms the disengageable clamping junction together with a complementary shape on the roll stub shaft.