Support roll for flattener

Abstract

The invention discloses a supporting roll used in a straightening machine, including a supporting roll set used for supporting a straightener roll; the roll shape of the middle section of the body of the supporting roll is a quartic or quadratic polynomial curve along the diametric direction; the invention can eliminate the stress concentration occurring in the contact process of the roll set, relieve the local abrasion of the supporting roll, prolong the service life of the roll set and achieve the purposes of prolonging on-machine time, reducing shutdown polishing time and lowering production cost.

Description

technical field The invention relates to a backing roll for a straightening machine, in particular to a backing roll for a hot straightening machine for wide and thick steel plates. Background technique At present, the hot straightening machine equipment used in the production of wide and thick plates in the world is mainly a quadruple 9-roller reversible straightening machine. The straightening thickness range is 10~100mm, and the straightening temperature of the steel plate is generally between 400~900°C. The steel plate is generally straightened for 1~3 passes on the hot straightening machine, and the yield strength of the straightened steel plate in the hot state is up to 1000Mpa. The straightening speed is determined according to the thickness of the steel plate, and the speed range is 0-2.5m / s. With the functions of roll bending, lateral tilting, longitudinal tilting, individual adjustment of entrance / exit rolls and dynamic roll gap adjustment, it can eliminate vario...

AI Technical Summary

Problems solved by technology

However, when the problematic roll surface needs to be ground, it must be stopped, thus affecting the work efficiency

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