Unit for producing medium diameter straight seam double-sided submerged arc welded steel pipe and steel pipe forming method

A double-sided submerged arc welding technology for steel pipes, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problems of inability to adjust, easy to form a peach-shaped tip, fixed deformation of the pipe body, etc., and achieve shape adjustment accuracy High, short time, adjustable deformation effect

Inactive Publication Date: 2012-02-08
赵春友
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing medium-diameter straight seam steel pipe ERW high-frequency electric resistance welded steel pipe body is formed with an upward joint, and the welding position is at the top of the pipe body. Fixed, cannot be adjusted, easy to form a peach-shaped tip after the tube is formed

Method used

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  • Unit for producing medium diameter straight seam double-sided submerged arc welded steel pipe and steel pipe forming method
  • Unit for producing medium diameter straight seam double-sided submerged arc welded steel pipe and steel pipe forming method

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Embodiment Construction

[0009] refer to figure 1 , it includes a lower beam 5, the two ends of the lower beam 5 are respectively fixed on the foundation bases 6 on both sides, two racks 7 are respectively fixed on the base bases on both sides, and a worm gear reducer is installed at each end of the lower beam 5 1. The two worm gear boxes are respectively connected to the worm gear box 4 installed in the middle of the lower beam through the connecting rods. The lower box 17 and the upper box 18 are installed on two racks and can slide up and down. There are two propulsion connection assemblies 3 fixed under the lower box, and the two propulsion connection assemblies have their own connecting screw 2 to connect with the worm wheel of the corresponding worm gear box 1 below, and the lower roller seat 12 is installed on the lower box And connected with the connecting plate 16, the lower roller base 12 is equipped with a swing connecting gear 11, a large gear 10 and a pinion 9 that are meshed in sequence,...

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Abstract

The invention relates to a unit and a forming method for preliminary forming processing of steel pipes. It is designed to solve the problem that the pipe body is easy to form a peach-shaped tip when the current similar units are formed. It includes a lower beam, a base, and a frame. There are worm gear reducers at both ends of the lower beam. There is a propulsion connection assembly under the box body, which has a connecting screw connected to the worm gear reducer, the lower roller seat is installed on the lower box body and connected with the connecting plate, and the lower roller seat has a swing connection gear, a large gear and The pinion, the pinion is connected with the worm gear reducer; there are worm gear reducers at both ends of the lower box, and the worm gear reducer is connected with the propulsion connection assembly by a screw; the upper structure of the upper box and the above lower box, etc. The substructure is basically the same. The advantage is that the mouth of the steel pipe is downward and there is no peach-shaped tip.

Description

Technical field: [0001] The invention relates to a unit and a forming method for preliminary forming processing of Φ219mm-Φ711mm steel pipes. Background technique: [0002] The existing medium-diameter straight seam steel pipe ERW high-frequency electric resistance welded steel pipe body is formed with an upward joint, and the welding position is at the top of the pipe body. It is fixed and cannot be adjusted. After the tube body is formed, it is easy to form a peach-shaped tip. Invention content: [0003] The technical problem to be solved by the present invention is to provide a kind of pipe body forming joint vertically downwards, the internal welding is welded on the horizontal position, the deformation amount of the pipe body can be adjusted when the pipe body is formed, and there is no peach-shaped tip and straight line after the pipe body is formed. A unit for producing medium-diameter straight seam double-sided submerged arc welded steel pipes and a steel pipe for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C37/08B23K9/00
Inventor 赵春友
Owner 赵春友
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