Diamond Steel Tube Mill

Abstract

The invention discloses a diamond-shaped steel pipe rolling machine, which comprises a horizontal machine frame, an U-shaped vertical machine frame, an arch-shaped adjusting frame and a transverse beam, wherein the horizontal machine frame comprises a base, a left support plate, a right support plate and a transverse rod, a first air pipe is arranged on the base, a second air pipe and a third air pipe are arranged on the transverse rod, the arch-shaped adjusting frame is arranged at the two ends of an upper roll, and the two ends of the arch-shaped adjusting frame are in vertical sliding fit with a vertical guide groove. The diamond-shaped steel pipe rolling machine has the advantages that air is blown to a left roll, a right roll, the upper roll, a lower roll and a steel pipe by the air pipe, so the rolling defect caused by the fact that the sand and other matters enter the combining surface of the roll and the steel pipe is avoided, the upper ends of roll shafts of the left roll and the right roll are supported by the left support plate, the right support plate and the transverse rod, and the stress property of each roll along the horizontal direction is greatly improved; the transverse beam is connected with the upper end of the U-shaped vertical machine frame, so the stress property of the vertical machine frame is greatly improved; the lifting of the upper roll is adjusted by a lifting rod, so the adjusting of the corresponding roll is convenient, and the consumed time is short.

Description

technical field [0001] The invention relates to rolling equipment, in particular to a rolling mill for rolling diamond-shaped steel pipes. Background technique [0002] The diamond-shaped steel pipe rolling mill includes a left roll, a right roll, a horizontal frame for installing the left and right rolls, an upper roll, a lower roll, and a vertical frame for installing the upper and lower rolls, and the horizontal frame and the vertical frame rolling line in turn arranged independently of each other. [0003] In the prior art, the rolls are not equipped with cleaning devices during the rolling process, so that during the rolling overshoot, it is easy for sundries such as gravel to enter the joint surface between the rolls and the steel pipe, resulting in rolling defects. [0004] And because the left and right rolls are vertically arranged on the horizontal frame, the left and right rolls will be subjected to the horizontal and longitudinal impact force of the steel pipe d...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the present invention is to provide a diamond-shaped steel pipe rolling mill to solve the problems of rolling defects caused by gravel entering the joint surface between the roll and the steel pipe, and poor mechanical performance of the horizontal and vertical stands.

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