Vertical rolling mill adopting upper transmission mode

Abstract

The invention relates to a vertical rolling mill adopting an upper transmission mode. The vertical rolling mill comprises a main transmission device, a rack assembly, side press and balance devices, a roll system device and rack rolls, wherein two main motors in the main transmission device are arranged at the two sides of a transmission device support respectively, and connected with a speed reducer through a crowned tooth shaft coupler respectively, and each speed reducer is connected with two rolls through a cross shaft-shaped universal spindle; each roll is provided with a roll bearing seat, wherein a rolling wheel is arranged on the upper part of each upper roll bearing seat, a scraping plate is arranged at the outer side of each rolling wheel, and each roll bearing seat at the same side as the corresponding rolling wheel is provided with an outwards-bulged stop block; and the side press and balance devices are arranged at the two sides of each roll respectively. According to the vertical rolling mill disclosed by the invention, the main motors are placed at the two sides of the transmission device support, thus reducing the influence of elastic deformation caused by the weight of the upper part of a mill housing frame on the rolls; each scraping plate is additionally arranged at the rolling wheel of the corresponding roll bearing seat, and capable of replacing a conventional water-sweeping device; in addition, each stop block is arranged on the corresponding roll bearing seat, and capable of preventing the occurrence of a sliding-off accident; and the vertical rolling mill is compact in overall structure, convenient to adjust, high in product accuracy, and high in safety.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to an upper-drive vertical roller mill. Background technique [0002] At present, there are mainly two transmission forms of vertical rolling mills, namely horizontal transmission form and upper transmission form. Because the working environment of the upper transmission form is good, the influence of water and iron scale is eliminated, the fault frequency is greatly reduced, and it also brings great convenience to maintenance, so most vertical roller mills adopt the upper transmission form. However, most of the main motors of the commonly used upper-drive vertical roller mills are located above the reducer, which causes excessive force on the stand and affects the rolling quality to a certain extent. In addition, the sliding of the roll bearing housing in the frame requires a water sweeping device to remove the oxide scale on the slideway, which not only increases the equipm...

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Problems solved by technology

The roll chock is suspended on the frame through the rollers. Once the rollers are damaged, it will cause the accident that the whole roll system device will slide down.

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