Vertical roller device of universal rolling mill

Abstract

The invention relates to a vertical roller device of a universal rolling mill. The vertical roller device is characterized in that the vertical roller device is composed of four portions including a vertical roller, cylindrical bearings, a thrust bearing and a mandrel, the vertical roller is fixed on the mandrel through the cylindrical bearing and the thrust bearing, spacer rings are arranged between double-flange inner sleeves of the upper cylindrical bearing and the lower cylindrical bearing, shaft rings of the thrust bearing are fixed between the upper spacer ring and the lower spacer ring, two seat rings are fixed between outer sleeves of the upper cylindrical bearing and the lower cylindrical bearing, an upper gland and a lower gland are fixed on the vertical roller and presses the outer sleeves of the cylindrical bearings, and framework sealing rings are arranged between the outer sides of transparent covers and the inner sides of the glands to form the integral-type vertical roller device of the universal rolling mill. The vertical roller device has the advantages of high universality, simplicity in processing and manufacturing, flexibility in mounting, convenience in use and adjustment, stability in rolled piece control and capability of bearing bigger rolling force, production equipment accidents like damage to a vertical roller bearing and cracking of the vertical roller in the process of rolling production can be avoided, production accidents like falling of rolling materials, waste products and steel piling are reduced, and product quality is improved.

Description

technical field [0001] The invention relates to the technical field of section steel production, in particular to a vertical roll device for a universal rolling mill, which is special equipment for hot-rolling H-section steel. Background technique [0002] At present, in the production process of H-beam in the domestic metallurgical industry, the hot steel billet produced by the continuous casting machine is conveyed by the roller table and sent to the walking beam heating furnace to heat the billet to 1100°C-1150°C. After the billet comes out of the furnace, it is dephosphorized by high-pressure water, and the billet is transported to the reversible rough rolling mill through the roller table, and reversibly rolled for 3-7 passes, and rolled into a near-net shape cross section. The rolled piece is transported to the flying shear through the roller table. After passing the inspection, the flying shear performs automatic head cutting, and the cut rolled piece enters the unive...

AI Technical Summary

Problems solved by technology

In the production process of H-shaped steel, the special equipment for producing H-shaped steel is used for rolling. The vertical roll device of the core technology is limited by the structural space, and at the same time it has to bear the large rolling of the metal deformation of the H-shaped steel flange. Therefore, the structural design is very difficult, so the vertical roller device will become a weak link that restricts the entire H-beam production line. During production, there will often be production equipment accidents such as vertical roller bearing damage and vertical roller cracking, and a large number of rolling failures will occur. materials and waste products, and even lead to stacking steel production accidents, increased consumption of bearings and vertical rollers, affecting product quality, reducing the pass rate and yield, increasing production costs, and affecting the economic benefits of the enterprise

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