Roller stand positioning system and method for continuous mill

Abstract

The invention discloses a roller stand positioning system and method for a continuous mill. The system comprises a main machine seat, a roller stand and a stand push and pull device, wherein the standpush and pull device is used for pushing the roller stand to the preset position on the main machine seat along the horizontal direction; a first horizontal positioning block and a first vertical positioning block are arranged on the side wall of the roller stand, and a second horizontal positioning block and a second vertical positioning block are arranged on the side wall of the main machine seat; and a climbing mechanism is arranged on the main machine seat and is used for lifting the roller stand. The roller stand positioning system and method for the continuous mill has high alignment precision. Moreover, all the positioning blocks are distributed on a rolling line centrally, and the stress line of the roller stand is more concentrated, so the rigidity of the roller stand and the main machine seat is ensured.

Description

technical field [0001] The invention relates to the technical field of steel pipe production, in particular to a rolling stand positioning system and method of a continuous rolling mill. Background technique [0002] The continuous rolling mill is a continuous rolling mill of industrial machinery, which can be used for steel strip rolling, seamless steel pipe production, etc. A continuous rolling mill usually consists of a main stand, multiple roll stands and stand push-pull devices. The frame push-pull device is used to push the rolling mill frame to a preset position on the main frame, and then the roll frame and the main frame are relatively fixed, so that the rolls rotate on a fixed axis for rolling. [0003] In the prior art, the roll frame and the main frame are positioned and fixed in the following manner: the roll frame is a regular hexagonal structure, two positioning plates are respectively arranged at the upper left vertex and the lower left vertex of the roll fr...

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Problems solved by technology

[0004] The inventors have found that the prior art has at least the following problems: when the roll frame is pushed into the main frame, sliding friction will occur between the contact surfaces of the roll frame and the main frame, resulting in wear and tear.

When the roll stand is pressed and fixed on the main frame, the height of its centerline may not be completely consistent with the centerline of the main frame due to wear and tear, which will cause the centerlines of multiple roll stands to be non-collinear, affecting the rolling effect

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