Two-roll tandem pipe mill and roll framework locking device thereof

Abstract

The invention discloses a two-roll tandem pipe mill and a roll framework locking device thereof. The roll framework locking device comprises a pressing device and a side locking device. Rolls of the roll framework include a first roll and a second roll parallel to each other. After the roll framework is mounted into a main base, the side locking device is used for longitudinally locking the rolls of the roll framework, and the pressing device is used for pressing from the first roll to the second roll of the roll framework. The side locking device comprises a locking cylinder and a pressure-bearing backing plate, wherein the locking cylinder is arranged at the back end of the main base, and an extending end of the locking cylinder is a locking press head, a first bevel is formed on the locking press head, and a second bevel matched with the first bevel to lock the rolls longitudinally is formed on the pressure-bearing backing plate arranged at the back end of the roll framework. By the roll framework locking device, the problem of keeping horizontal rolling balance of the roll framework of the two-roll tandem pipe mill in the prior art is solved, stability of the roll framework in rolling is guaranteed effectively, and steel pipe rolling quality is improved further.

Description

technical field [0001] The invention relates to a two-roll continuous pipe rolling mill, in particular to a rolling stand locking device for a two-roll continuous rolling pipe mill and a two-roll continuous pipe rolling mill with the roll stand locking device. Background technique [0002] With the rapid development of continuous rolling technology, the continuous rolling mill has completely replaced the traditional skew rolling mill and has become the development direction of steel pipe rolling equipment. [0003] Existing continuous pipe rolling mills include two-roll continuous pipe rolling mills and three-roll continuous pipe rolling mills. Due to the large three-way transmission transmission mechanism and complex structure of the three-roll continuous pipe rolling mills, it is difficult to manufacture roll stands. The production cycle is long, and the installation and commissioning takes a long time, which leads to high production cost and large installation investment ...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the object of the present invention is to provide a roll stand locking device for a two-roll continuous pipe mill to overcome the single vertical pressing of the two-roll continuous pipe mill in the prior art. The technical problem that the rolling balance of the roll stand in the horizontal direction cannot be guaranteed

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