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Large-diameter seamless steel pipe sizing-reducing mill

A technology of seamless steel pipe, fixed and reduced diameter, applied in the direction of metal rolling stand, metal rolling mill stand, metal rolling, etc., to achieve the effect of easy adjustment and positioning, reliable use, and reduced volume

Active Publication Date: 2007-11-28
TAIYUAN TONGZE HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to design a large-diameter sizing machine that is simple and compact in structure, small in size, light in weight, easy to adjust and position, and easy to install, aiming at the fact that the above existing sizing machine technology cannot meet the needs of large-diameter seamless steel pipe production equipment. Caliber seamless steel pipe sizing machine

Method used

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  • Large-diameter seamless steel pipe sizing-reducing mill
  • Large-diameter seamless steel pipe sizing-reducing mill
  • Large-diameter seamless steel pipe sizing-reducing mill

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Embodiment Construction

[0017] The specific embodiments are described below with reference to the drawings.

[0018] Figure 1 shows a large-diameter seamless steel pipe sizing machine. It includes at least two racks 1 and rollers 2 arranged along the steel pipe rolling direction, and a transmission device. The basic guide rail 3 is a V-shaped guide rail. The basic guide rail under each rack is composed of two mutually perpendicular basic guide rails parallel to the rolling direction of the steel pipe and perpendicular to the rolling direction of the steel pipe; The direction corresponds to the V-shaped positioning groove 9; the V-shaped groove is directly seated on two mutually perpendicular foundation rails, and the rack and the V-shaped groove are fixed on the basic rail with bolts and nuts, and the racks are connected together. There are three rolls in each stand. The rolls are equipped with bearings and are installed in the stand. Each roll is connected to a transmission device through an extended sh...

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Abstract

The present invention relates to a sizing reducing mill for large-diameter seamless steel pipe. It includes at least more than two machine frames and rolls which are arranged along steel pipe rolling direction and driving device. It is characterized by that the machine frame is placed on the basic guideway, and fixed on the basic guideway by means of bolts and nuts, all the machine frames are connected together by means of connecting device, every machine frame interior is equipped with three rolls, every roll is connected with driving device by means of extended shaft or sleeve.

Description

Technical field [0001] The invention belongs to seamless steel pipe continuous rolling production equipment of metallurgical enterprises, and specifically relates to a seamless steel pipe sizing and reducing machine. Background technique [0002] At present, in the seamless steel tube continuous rolling production equipment of metallurgical enterprises, the sizing machine is one of the key finishing equipment for seamless steel tube continuous rolling production. After hot rolling, the steel pipe needs to be reduced, rounded and sized by a sizing reducer, and finally rolled into a seamless steel pipe product. The sizing machine in the φ140, φ100, and φ76 seamless steel tube continuous rolling mills includes a stand, a stand installed in the stand, three roll devices in the stand, a motor, a reducer, and a drive shaft to form a transmission device, etc. . When the sizing machine is changing rolls, first, manually unscrew the fixing screws of each frame or open the hydraulic lockin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B31/02B21B31/06B21B19/10
Inventor 冀文生
Owner TAIYUAN TONGZE HEAVY IND
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