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End-thickened steel-tube straightening device

A straightening machine and steel pipe technology, which is applied in the field of metal pipe finishing machinery and equipment, can solve technical difficulties and other problems, and achieve the effect of increasing the contact area

Inactive Publication Date: 2009-08-19
江苏诚德钢管股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the problem of end straightening of thickened tubing has always been a technical problem

Method used

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  • End-thickened steel-tube straightening device
  • End-thickened steel-tube straightening device
  • End-thickened steel-tube straightening device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as figure 1 , 2 As shown in Figure 3, on a rectangular base 1, two sets of rollers 2, 3 are arranged along the length direction.

[0016] Two steel pipe fulcrum seats 4, 5 that can slide along the length of the pedestal 1 are respectively arranged on the same side along the length direction of the base 1, and a semicircular concave arc surface is provided on one side of each steel pipe fulcrum seat 4, 5. The specific method can be as follows: Weld and fix two transition blocks 6, 7 on the base 1, and respectively open long grooves 8, 9 on the same horizontal line on the two transition blocks 6, 7, and each of the long grooves 8, 9 is connected to the base. 1 The length direction is parallel. The steel pipe fulcrum seats 4 and 5 are respectively arranged on the inner side of the corresponding transition blocks 6 and 7, and the semi-circular concave arc backs of the steel pipe fulcrum seats 4 and 5 are fixed with connecting bolts. The bolts are connected to the long gro...

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Abstract

The invention provides a method for straightening steel tubes with thickened end parts, which relates to the technical field of metal tube material processing in the metallurgy industry, in particular to finishing mechanical equipment for the metal tube materials. A base is provided with at least two sets of carrier rollers along the length direction; two steel tube pivot seats capable of sliding along the length direction of the base are arranged on the same side along the length direction of the base; jacking blocks which are positioned on the same plane as the two steel tube pivot seats are arranged on the other side of the base opposite to the steel tube pivot seats; and the rear ends of the jacking blocks are connected with hydraulic cylinders vertical to the length direction of the base. The method overcomes the defects of high labor intensity, low efficiency, poor quality and large deviation of the conventional manual pressure straightening machine, and has the characteristics of less investment, simple operation, high efficiency, high straightening precision, and the like.

Description

Technical field [0001] The invention relates to the technical field of metal pipe processing in the metallurgical industry, in particular to the finishing mechanical equipment of metal pipes. Background technique [0002] With the development of the world's industry, especially the development of the oil production industry, the oil well pipe manufacturing industry has also developed rapidly. However, as the difficulty of oil well exploitation continues to increase, the geological conditions continue to become worse. Due to the advantages of high-steel-grade thickened tubing with excellent sealing performance, reliable connectivity, and easy operation, the market for high-steel-grade thickened tubing has grown rapidly. The so-called thickened tubing refers to the need to thicken the two ends of the steel pipe during the production and processing of the steel pipe to form a dumbbell shape with thick ends and thin middle, so that the thickened tubing will inevitably have two ends w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/10
Inventor 张铮陈忠苏俊朱茂荣
Owner 江苏诚德钢管股份有限公司
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