Device for preventing roll system transmission slippage and restraining torsional vibration of four-high mill

Abstract

The invention discloses a device for preventing roll system transmission slippage and restraining torsional vibration of a four-high mill. An upper supporting roll belt wheel is arranged on a supporting roll long roll neck at the left end of an upper supporting roll, a lower working roll belt wheel is arranged on a working roll long roll neck at the left end of a lower working roll, and a lower supporting roll belt wheel is arranged on a supporting roll long roll neck at the right end of a lower supporting roll; an upper working roll belt wheel is installed on a working roll long roll neck atthe right end of an upper working roll, a left transmission belt is wound among the upper supporting roll belt wheel, the lower working roll belt wheel and a tensioning wheel, and a right transmissionbelt is wound among the lower supporting roll belt wheel, the upper working roll belt wheel and the tensioning wheel; when the upper working roll drives the upper supporting roll through friction transmission to slip, the lower working roll belt wheel and the upper supporting roll belt wheel are directly driven by the left transmission belt, and the left transmission belt prevents slipping between the upper supporting roll and the upper working roll; and similarly, the right transmission belt prevents slipping between the lower supporting roll and the lower working roll, torsional vibration of the mill is restrained by preventing roll system transmission slipping, 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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