Side supporting device of working roll of cold rolling machine

Abstract

The invention discloses a side supporting device of a working roll of a cold rolling machine. The side supporting device comprises a fixed device, a moving device, side-supporting roll swinging rod devices and side supporting roll systems, wherein oil motors, worm gear mechanisms and lead screw mechanisms are arranged on the fixed device which is provided with horizontal sliding grooves; the moving device is provided with thread holes matched with the lead screw mechanisms and sliding keys matched with the sliding grooves of the fixed device; each swinging rod device comprises two fixed arms, a swinging beam and two hydraulic cylinders; the two fixed arms of each swinging rod device are fixedly arranged at the inner side of a bending-roll moving block of a middle roll; the bending-roll moving block moves up and down along a bending roll fixed block which is fastened on a rack of the rolling machine; each side supporting roll system comprises two supporting seats, a side supporting roll and two rows of backlining rolls; the side supporting roll systems are fixed on the swinging beams of the swinging rod devices. The side supporting device disclosed by the invention has the beneficial effects that when ultrathin and ultrahard cold-rolled strip steel is rolled, the working roll can be prevented from bending in the horizontal direction, the rolling state is stable, the structure of the device is simple and novel, and the rolled product is good in quality.

Description

technical field [0001] The invention belongs to the technical field of metallurgical machinery, in particular to a side support device for a work roll of a cold rolling mill. Background technique [0002] Domestic common carbon steel strip rolling is mainly based on six-high cold rolling mills, but due to the large diameter of the work rolls of six-high cold rolling mills, it cannot meet the rolling of extremely thin strips, silicon steel and stainless steel. For ultra-thin strips, silicon steel and stainless steel rolling, most of them are rolled by 20-high rolling mills. The diameter of the work roll of the twenty-high mill is about Φ50, the small diameter of the roll has less contact area in the deformation zone, the rolling force is reduced, and it can roll ultra-thin and ultra-hard strip steel. However, the shortcomings of the 20-high rolling mill are: the processing of the frame and the roll system is complicated, the space in the rolling mill is small, the lubricatio...

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