Hot rolled steel plate five-roll straightening machine

Abstract

The invention discloses a hot rolled steel plate five-roll straightening machine and aims to provide hot rolling steel plate finishing machinery equipment in metallurgical industry. The hot rolled steel plate five-roll straightening machine has a function of straightening a hot rolled steel plate. The machine is provided with a base device, an upper roller device, a lower roller device, a rollinggap adjustment driving device, a straightening roller driving device and other main components; according to the technical scheme, the upper roller device can make lifting movement stably and reliablyas the upper roller device is limited during the lifting motion; a clamping mechanism is arranged at a work station of the upper roller device, so that the upper roller device is secure, reliable andsmall in vibration in the straightening process; a rolling gap is adjusted by combining a spiral pair and a wedge mechanism, so that the adjustment is reliable and the self-locking performance is good; and the rolling gap can be automatically adjusted by a driving line switching mechanism and a controlling device. The machine is simple in structure, easy to manufacture, convenient to repair and good in economical efficiency.

Description

technical field [0001] The invention relates to a finishing mechanical equipment for hot-rolled steel plates in the field of metallurgy, in particular to a five-roller straightening machine for hot-rolled steel plates. Background technique [0002] Known five-roller straightening machine for hot-rolled steel plate is the special equipment for metal plate leveling, which is used for leveling steel plate and uneven plate. The plate straightening machine reversely bends and rotates the plate and applies pressure through the straightening rollers set on it, so that the plate is squeezed to change the straightness and achieve the purpose of straightening. Usually there are two rows of straightening rollers on the straightening machine, the number is different, there are five rollers, seven rollers, eleven rollers, etc. Generally, the thicker the plate, the fewer the number of rollers, the larger the straightening rollers, and the better the rigidity. The products of hot-rolled p...

AI Technical Summary

Problems solved by technology

The straightening rollers of the five-roller straightening machine commonly used in China are usually arranged with three straightening rollers at the bottom and two straightening rollers at the top. When driving, some of them use the upper two as driving rollers, and some use the lower three straightening rollers. The rolls are active rolls, and some rolls are active rolls, and each straightening roll is driven individually or in groups. The adjustment method of the size of the roll gap is that the lower roll is fixed to adjust the upper roll, and the upper roll is fixed to adjust the lower roll. The roll gap adjustment device mostly uses hydraulic pressure as the power, and uses the expansion and contraction distance of the hydraulic cylinder to directly control the size of the roll gap, or uses the hydraulic cylinder to push the wedge mechanism to control the size of the roll gap. The above-mentioned roll gap adjustment device has insufficient roll gap adjustment accuracy. , Inconvenient control, Difficult manufacture and maintenance etc.

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