A device for preventing slipping of roll train transmission and suppressing torsional vibration of four-high rolling mill

Abstract

The invention discloses a device for preventing the transmission slipping of the roll system and suppressing the torsional vibration of a four-high mill. On the long neck of the working roll, the pulley of the lower backup roll is installed on the long neck of the backup roll at the right end of the lower backup roll, the pulley of the upper working roll is installed on the long neck of the working roll at the right end of the upper working roll, and the left transmission belt is wound on the upper support Between the roll pulley, the lower work roll pulley and the tension pulley, the right transmission belt is wound between the lower support roll pulley, the upper work roll pulley and the tension pulley, and the upper work roll drives the upper support roll through friction transmission when slipping occurs , the pulley of the lower work roll and the pulley of the upper support roll are directly driven by the left transmission belt, and the left transmission belt prevents slippage between the upper support roll and the upper work roll; To prevent the roll train from slipping to suppress the torsional vibration of the rolling mill, the design is scientific and reasonable, the structure is simple, and the effect is remarkable.

Description

technical field [0001] The invention relates to a device for preventing the drive slip of a roll system and suppressing the torsional vibration of a four-high rolling mill, belonging to the technical field of torsional vibration control of the four-high rolling mill. Background technique [0002] With the development of the iron and steel industry, the number and capacity of various types of rolling mills and their drive motors are increasing, but accidents such as roll breakage, connecting shaft damage, and drive motor rotor parts damage caused by the torsional vibration of the rolling mill transmission system are repeated. Therefore, for a long time, many scholars at home and abroad have devoted themselves to the research of rolling mill torsional vibration, in order to reveal its mechanism, master its law, and then control it. [0003] The phenomenon of rolling mill torsional vibration is gradually recognized in the frequent damage accidents of transmission parts in the r...

AI Technical Summary

Problems solved by technology

The two transmission modes of the transmission system of the four-high rolling mill rely on the friction between the work roll and the back-up roll for transmission. , steel throwing, braking), the four-high mill’s work rolls and backup rolls will slip between the rolls, which will lead to unstable torsional vibrations in the rolling mill transmission system (such as transmission shafts, motor parts) , seriously damage the smoothness of the roll surface, which leads to the interruption of the production process

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