A Self-Adaptive Device for Adjusting the Gap Between Roller Bearing Housing and Frame

Abstract

The invention belongs to the technical field of steel rolling machinery, and in particular relates to an adaptive device for adjusting the gap between a roll bearing seat and a frame. It includes a groove formed on the outer side of the frame column to match the cylinder body of the disc spring hydraulic cylinder, a working hole that runs through the frame column and cooperates with the piston rod of the disc spring hydraulic cylinder, and a magnetostrictive displacement sensor. The self-adaptive device of the invention eliminates the side clearance between the roll bearing seat of the rolling mill and the stand column, and improves the static stability of the rolling mill. The stability and natural frequency of the rolling mill are greatly improved, and the chattering phenomenon of the rolling mill is reduced. The invention of the self-adaptive device can ensure that the upper and lower work rolls will not run crosswise relative to the upper and lower back-up rolls in the structural design of the four-high mill roll system, thereby eliminating the drawbacks of the work rolls clamping the strip and moving axially.

Description

technical field [0001] The invention belongs to the technical field of steel rolling machinery, and in particular relates to an adaptive device for adjusting the gap between a roll bearing seat and a rack. Background technique [0002] At present, the four-high rolling mills used in my country's hot rolling mills generally have the phenomenon that the work rolls clamp the strip and move axially. After field investigation, it was found that the axial baffle plate and its fixing bolts of the work rolls of a 3000mm medium and heavy plate mill in a steel factory were often broken and damaged, and could not be used for a long time; It moves axially to maintain production. The axial movement of the work roll linkage roll drive device, universal joint shaft, motor shaft, etc. can even be directly measured with a steel ruler. For a long time, we have focused on solving the wear-resistant problem of the rack liner, but the effect is not obvious, and the root of the problem cannot b...

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to provide a device that uses the self-adaptive principle to control the gap between the roll bearing seat and the frame, which can overcome the static instability of the existing rolling mill and the axial movement of the strip clamped by the work roll

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