Horizontal roller system axial locking device for extra-large universal rolling mill

Abstract

The invention provides a horizontal roller system axial locking device for an extra-large universal rolling mill. The axial locking device comprises a horizontal roller memorial archway and a verticalroller memorial archway, wherein the vertical roller memorial archway is connected to the horizontal roller memorial archway, and an axial locking bearing seat used for installing a roller is installed on the horizontal roller memorial archway; a locking mechanism used for fixing the axial locking bearing seat is arranged at the joint of the horizontal roller memorial archway and the vertical roller memorial archway; and the locking mechanism comprises a locking assembly and a driver used for driving the locking assembly to work. According to the axial locking device, the axial locking of thehorizontal roller system is completed by arranging the locking mechanism, and the problems that in the axial locking of a rough rolling machine, fixing bolts are loosened during use and threads are damaged due to long-time use are solved; an adjusting assembly is arranged on the locking mechanism, and the problem that an axial locking gap in the universal rolling mill cannot be adjusted is solved; and the monitoring of the locking condition of the horizontal roller system can be realized through proximity switches, and the production efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of rolling mill equipment, and in particular relates to an axial locking device for a horizontal roll system of an extra-large universal rolling mill. Background technique [0002] Hot-rolled H-shaped steel is widely used due to its excellent mechanical properties in civil construction, industrial construction, bridge construction, petroleum industry, high-rise buildings, underground railways, mine roadways and industrial steel structural parts. With the rapid development of my country's economy, the output and quality requirements of H-beams are increasing day by day, which puts forward higher requirements for the universal rolling mills used to produce H-beams. For universal rolling mills, the stiffness in the horizontal direction of the rolling mill is affected by the axial locking of the horizontal roll system of the rolling mill. The axial locking of the horizontal roller system requires a reasonable gap between...

AI Technical Summary

Problems solved by technology

The axial locking of the horizontal roller system requires a reasonable gap between the locking part of the roller system and the locking mechanism. When the axial direction cannot be completely locked, the gap will be too large, resulting in a large axial bounce.

Affect the quality of the rolled piece and damage the rolling mill equipment

[0003] The roughing mill and the universal finishing mill used in the existing semi-continuous rolling process of section steel use two different horizontal rolls for axial locking, the roughing mill uses hydraulic locking, and the universal rolling mill uses bolts and hydraulic nuts to fix the platen In the actual use of hydraulic locking, some problems have been found. Because the rolled piece will produce a large impact when passing through the rolling mill, resulting in vibration, the bolts that fix the axial locking pressure plate during long-term use will be damaged. Slowly loosen, resulting in a larger gap between the inclined liner of the pressure plate and the inclined liner of the roller system, and a larger axial bounce, and the long-term use may cause damage to the thread of the fixing bolt due to the large impact

However, when the bolts and hydraulic nuts are locked, generally the locking gap cannot be adjusted, and the springing of the rolling mill in the axial direction cannot be precisely controlled.

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