Control method for zero adjusting rollers in universal type rolling mill

Abstract

A control method for the zero regulation of rollers on universal steel rolling mill features that both vertical roller and hydraulic drive system are used for the axial movement and aligning of upper horizontal roller, and the bearing holder of upper roller and its clamping plate, clamping cylinder, locating cylinder, and lug are used for the zero-regulating and aligning between upper and lower horizontal rollers.

Description

technical field [0001] The invention relates to a debugging method of metallurgical equipment, more specifically, the invention relates to a method for controlling roll zero adjustment of a universal section steel rolling mill. Background technique [0002] The reversible universal section steel rolling mill adopts the rolling method of four rollers (namely upper horizontal roller, lower horizontal roller, driving side vertical roller and non-driving side vertical roller). In order to obtain the rolling zero position of the four-roller and eliminate the influence of the mechanical gap on the rolling precision, the pressing and pressing of the rolling mill need to be zero-adjusted, that is, to make the four-roller of the rolling mill press against each other and align without rolling workpieces. [0003] At present, the following problems generally exist in the zero adjustment of the reversible universal section mill with dynamic axial adjustment of the top roll at home and a...

AI Technical Summary

Problems solved by technology

In this way, the time for the horizontal roller to complete the initial pressing is very long

[0005] Second, due to the wear of the wear-resistant liner of the rolling mill arch, the wear of the wear-resistant liner of the bearing seat of the vertical roll and the upper horizontal roll, and the combined action of the iron oxide scale oil stain adsorbed on the wear-resistant liner of the rolling mill arch after rolling, the The sliding resistance of the bearing housings of the vertical roll and the upper horizontal roll in the rolling mill archway is greatly increased, so that the vertical rolls on both sides of the rolling mill cannot push the upper horizontal roll to move axially

[0008] Fifth, usually the upper horizontal roller is zero-adjusted and pressed against when its connecting shaft balance is put in, so due to the effect of the connecting shaft balance of the upper roller, the transmission side of the upper roller is always affected by the shaft-connected balance during the zero-adjusting and pressing process. As a result, the pressing head cannot give the correct pressure value of the horizontal roller due to the uneven force, which can easily lead to accidents of the upper and lower horizontal rollers

[0010] The above-mentioned zero-adjustment control method for the reversible universal section steel mill with the dynamic axial adjustment of the upper roll using the existing technology has low efficiency, long adjustment time, low adjustment accuracy and difficult control, and poor fault tolerance

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