Method for pairing and lengthening steel cylinders

A pairing and cylinder technology, applied in the direction of manufacturing tools, welding equipment, auxiliary welding equipment, etc., can solve the problems of high production cost, high difficulty, low operation efficiency, etc., to improve the quality and work efficiency of the pairing, Efficient and safe, reducing the difficulty of operation

Active Publication Date: 2009-12-16
CHINA MCC 2 GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has disadvantages such as high difficulty, low operating efficiency, high production cost, poor safety, and the need to remove the "curved ruler" and grind the solder joints after the assembly is completed.

Method used

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  • Method for pairing and lengthening steel cylinders
  • Method for pairing and lengthening steel cylinders
  • Method for pairing and lengthening steel cylinders

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] From figure 1 and figure 2 It can be seen that the pairing has been completed or the first cylinder section 2 is located on the driving roller frame 3 and the passive roller frame 4, while the cylinder section 1 to be assembled is located on the special roller frames 5 and 6 for the pairing, and the pairing points are located on the two roller frames. The lowermost side of the barrel joint.

[0014] Combine below Figure 3 to Figure 6 The specific implementation is described as follows:

[0015] 1. Preparations before group alignment

[0016] A. Generally speaking, the diameters of the outer circles at the joints of the two barrel joints to be assembled should be the same. However, since the barrel joints often have deviations during the rolling, longitudinal seam welding, etc., it is necessary to Measure the difference in circumference and calculate the amount of misalignment at the interface of the two joints, so as to avoid the quality problem of local misalignm...

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PUM

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Abstract

The invention relates to a method for pairing cylinders, in particular to a method for pairing steel cylinders. The invention solves the technical problems of large working difficulty, low efficiency, high cost, poor safety, removal of curve ruler bend and smoothening of welding spots after the pairing is finished, and the like. In order to solve the technical problems, the invention adopts the technical scheme that the method comprises the following steps: by using a driving roller rack (5) and a driven roller rack (6) as a support body and a rotating power source of a paired cylinder section (or first cylinder section) (1), pairing special roller racks (3, 4) as a support body of a cylinder section to be paired; adjusting a staggered joint between cylinder section connectors and straightness of a bus by adjusting the positions of rollers of the paired special roller racks; and when the clearance, alignment tolerance, flatness and the like of the connectors are adjusted to accord with the requirement, tack-welding the connectors, and later finishing the back sealing weld of the connectors so as to finish a pairing process of one cylinder section. The structure of the steel cylinders is shown as the picture.

Description

technical field [0001] The invention relates to a method for making and assembling cylinders, in particular to a method for assembling steel cylinders. Background technique [0002] Usually, due to the limited capacity of the rolling equipment, the cylindrical pressure vessel and the conical tower of the wind power generator are connected by a cylindrical joint group with a length of no more than 3 meters. The traditional lengthening method is to use a jack to tighten the two sections of the tube section from the outside on the mold made of channel steel or I-steel, and use a jack on the inside or use a "curved ruler bend" to make a wedge on the tube. Methods align and grow into a whole. This method has the disadvantages of high difficulty, low operating efficiency, high production cost, poor safety, and the need to remove the "curved ruler" and grind the solder joints after the assembly is completed. Contents of the invention [0003] In order to overcome the above disa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B11/00B23K37/053
Inventor 者中林秦明诗赵智峰付英杰王军
Owner CHINA MCC 2 GRP CO LTD
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