Auxiliary roller support device

Abstract

The invention discloses an auxiliary roller support device. The auxiliary roller support device is composed of a pressing member and a downwards pressing mechanism for pressing the pressing member against the surface of a roller, wherein the pressing member is arranged on the downwards pressing mechanism; the downwards pressing mechanism tightly presses the pressing member against the roller to timely supplement the abrasive gaps formed between the pressing member and the roller and further to ensure effective support to the roller. By means of the auxiliary roller support device, roller bearings only bear a part of rolling force, so that the nominal diameter of the roller can be reduced, the dimension of an entire rolling machine transmission system comprising the auxiliary roller support device can be reduced, the vertical spacing of the diameter of every frame of the rolling machine can be reduced, the longitudinal dimension of the rolling machine can be more compact, the time of a piece to be rolled passing through the rolling machine can be shorter, the maintenance cost due to replacement of the transmission system can be reduced, and meanwhile, the effects of increasing the finish rolling temperature and shortening the length of out-of-tolerance parts of the wall thickness of head walls and end walls can be achieved.

Description

technical field [0001] The invention belongs to the field of rolling equipment for metal pipes or wire rods, and in particular relates to an auxiliary support device for rolls. Background technique [0002] At present, in the rolling production line, the rolling mill is the main deformation equipment, and the continuous rolling mill is generally equipped with several rolling stands, and the rolls are installed in the stands through bearings. During the rolling process, the rolling force is transmitted to the bearing seat through the bearing, and then transmitted to the hydraulic pressing system by the bearing seat. Due to the large rolling force, it is necessary to select a bearing with a larger diameter and width to ensure the life and strength of the bearing. To avoid interference, it is necessary to select rolls with larger nominal diameters accordingly, which not only increases the rolling torque, but also increases the distance between stands, which in turn leads to a d...

AI Technical Summary

Problems solved by technology

During the rolling process, the rolling force is transmitted to the bearing seat through the bearing, and then transmitted to the hydraulic pressing system by the bearing seat. Due to the large rolling force, it is necessary to select a bearing with a larger diameter and width to ensure the life and strength of the bearing. In order to To avoid interference, it is necessary to select rolls with larger nominal diameters accordingly, which not only increases the rolling torque, but also increases the distance between stands, which in turn leads to a decrease in the steel pipe yield, a large equipment volume, and an increase in investment

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