Vertical transmission device for vertical roller of rolling mill

Abstract

The invention relates to a vertical transmission device for a vertical roller of a rolling mill. The device is characterized in that: a beam opposite to a vertical roller shaft on each side is provided with the vertical transmission device for the vertical roller, which consists of a motor base, a motor, a coupling, a reduction box, a roller change mechanism of a hydraulic cylinder elevating spline shaft, a spring and a shaft coupling; an output shaft of the reduction box is a spline shaft; the upper and lower shaft ends of the spline shaft extend out of the reduction box; the upper shaft end of the spline shaft is connected with the roller change mechanism of the hydraulic cylinder elevating spline shaft; a spline shaft section in the reduction box is connected with a spline sleeve; the outer side of the spline sleeve is connected with a gear; the bottom end of the spline sleeve extends out of the bottom of the reduction box; the spring and the shaft coupling are arranged on a spline shaft section below the spline sleeve; and the upper section of the vertical roller shaft is connected to the inside of the shaft coupling. The device has the characteristics that: the device has a reasonable design and a compact structure, realizes active transmission of the vertical roller, can balance stress of a horizontal roller and the vertical roller in the rolling processes, has high steel pipe rolling and molding quality, is extremely convenient to use, a roller is convenient to change rapidly, and the like.

Description

technical field [0001] The invention belongs to rolling mill equipment, in particular to a vertical transmission device for rolling mill vertical rolls. Background technique [0002] At present, in the rolling mill in the steel pipe rolling process, usually the upper and lower horizontal rolls are driving rolls driven by their own transmission mechanisms, and the two vertical rolls on both sides of the horizontal roll are also called vertical rolls on both sides. Vertical rollers are passive rollers driven by horizontal rollers. Such a transmission structure will cause unbalanced stress on the horizontal roll and the vertical roll during the rolling process, resulting in uneven metal flow in the rolled steel pipe, thereby reducing the quality of the rolled steel pipe product. Therefore, in view of the shortcomings of the above-mentioned rolling mill, research and development of a kind of driving rolls that make the two vertical rolls on both sides also adopt the drive rolls...

AI Technical Summary

Problems solved by technology

Such a transmission structure will cause unbalanced stress on the horizontal roll and vertical roll during the rolling process, resulting in uneven metal flow in the rolled steel pipe, thereby reducing the quality of the rolled steel pipe product.

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