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:
Mar. 28, 2000
Filed:
Oct. 22, 1998
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A roll replacing method and a roll replacing system for a chockless rolling mill, in which bearings for supporting the ends of work rolls are supported at an eccentric position of rotary bushes on housings, and the rotary bushes are turned to set a roll gap, includes, pulling out the chockless rolling mill from a rolling line onto a pullout track extending perpendicularly to the rolling line; fixing the housing on a drive side onto the pullout track at a nearest position, moving a support trestle perpendicularly to the pullout track, and fitting the support trestle between the pullout track and the upper and lower work rolls to support these work rolls on the support trestle; separating the housing on a work side, the trestle, and the upper and lower work rolls, as a unit, from each other and from the drive-side housing, and moving them onto the pullout track until they come to a halt; and moving the trestle and the upper and lower work rolls as a unit onto a roll replacement track perpendicular to the pullout track, to replace the upper and lower work rolls as a unit by spare upper and lower work rolls as a unit, or to replace the trestle and the upper and lower work rolls, as a unit, by a spare trestle and spare upper and lower work rolls as a unit.