Method and device for detecting symmetry of hot strip roll chock liner

Abstract

The invention discloses a hot rolling roller-containing bearing seat liner symmetry detection method and device. The detection method comprises a step of suspending a support roller and bearing seats when the bearing seats are in a roller-containing state, since the bearing seats are heavy (usually larger than 7t per piece) and symmetrical in the structure, line contact is formed by the bearing seats, the bearing, and the bus on the support roller, the axis of the support roller are in the symmetrical surfaces of bearing seat inner holes, then the origin of a coordinate system is established on the support roller axis, a laser tracker is used to carrying out multi-point detection on a bearing seat linear, and the symmetry numerical value after the assembly of the hot rolling roller-containing bearing seat liner is obtained. Compared with an existing roller-containing indirect detection method, the detected roller system symmetry is high, according to the a detection result, the deviation of the support roller axis from the bearing seat inner hole symmetrical surfaces is smaller than 0.05mm, the requirement of the symmetry design value 0.2mm after the assembly of the hot rolling roller-containing bearing seat liner is completely satisfied, compared with a method of removing the support roller and carrying out directly measuring by the bearing seat inner holes, the detection efficiency can be improved by more than 3 times, and the fast pace requirement of hot rolling production line roller changing is satisfied.

Description

technical field [0001] The invention belongs to the technical field of steel rolling machinery and equipment, and in particular relates to a detection method for the symmetry degree of the chock liner of a hot strip roll, and also relates to a detection auxiliary device used in the method. Background technique [0002] In a hot-rolled strip mill, the symmetry of the lining plate after the assembly of the belt roll bearing housing has a great influence on the stiffness of the rolling mill. According to the design requirements, the symmetry of the lining plate is based on the axis of the inner hole of the bearing housing, and the bearing housing with a roll In this state, the inner hole cannot be directly measured, so the measurement of the symmetry of the bearing seat liner becomes difficult. Due to the advantages of high precision, small size, and portability, laser trackers are more and more widely used in the detection of space dimensional accuracy of metallurgical equipme...

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Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a method and device for detecting the symmetry of the chock liner of a hot rolling strip roll, which can detect the symmetry of the liner plate of the chock strip roll when the chock is in the state of the strip roll , reduce the number of spare rolls in the roll system, improve the detection efficiency and accuracy, and solve the technical problem of low detection accuracy of the symmetry of the belt roller bearing housing liner

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