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An oil pipeline welding counterpart

A technology for oil pipelines and counterparts, used in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve problems such as inability to perform axial adjustment, obstruction of welder operations, affecting axial adjustment and connecting thread life, etc. Achieve the effect of avoiding slow adjustment and stable support

Active Publication Date: 2020-11-10
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the external counterparts currently on the market are simple in structure, on the one hand, they have a certain resistance to the welder's operation during use, and on the other hand, they cannot be adjusted axially, and the applicable pipe diameter is also relatively single.
[0005] Chinese patent document CN106826080B discloses "A Pipeline Welding External Mouth", which can realize the functions of axial adjustment and automatic welding. When the change is large, it takes a long time to twist the adjusting bolt, and the work efficiency is low. The rotating block on the gear ring will be jammed and shaken due to friction, which will affect the welding quality and other problems.
In addition, in this patent, since the adjusting bolts do not rotate synchronously, it is easy to appear that the oil pipeline adjusted to the final adjusting ring is not in the center of the adjusting ring, so that the axial fine-tuning nut is not aligned due to the bolts on both sides when adjusting. However, the additional torque affects the axial adjustment and the life of the connecting thread

Method used

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  • An oil pipeline welding counterpart
  • An oil pipeline welding counterpart
  • An oil pipeline welding counterpart

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 , figure 2 and image 3 As shown, the oil pipeline welding counterpart includes an adjusting ring 1, a fixing ring 2 and an axial adjusting rod 3. The adjusting ring 1 is composed of an upper adjusting ring 101 and a lower adjusting ring 102, and the fixing ring 2 is composed of an upper fixing ring 201 and a lower adjusting ring. The fixed ring 202 is composed of the adjusting rod 3 including the first bolt 301 and the second bolt 303. The fixed ring 2 is provided with a number of limit grooves 206. The bolt 303 is connected with the first bolt 301, and the first bolt 301 and the second bolt 303 are connected through the axial fine-tuning nut 302. It is characterized in that: there are several adjusting bases 104 distributed on the upper adjusting ring 101, and the adjusting bases 104 are connected There is a quick adjustment mechanism, which is convenient for quick adjustment of the relative position between the adjustment bolt and the surface of the ...

Embodiment 2

[0040] like Figure 4~6 As shown, the difference between this embodiment and Embodiment 1 is that the quick adjustment mechanism includes an adjustment sleeve 105 and an adjustment bolt 106 . The adjusting bolt 106 is threadedly connected with the adjusting sleeve 105 , and a pair of positioning heads 110 are arranged on the outer surface of the adjusting sleeve 105 . The adjustment base 104 is provided with a through hole 107, and the through hole 107 is a pair of guide grooves 108 matched with the positioning head 110 in the axial direction. 108 communicates with the annular groove 109, and a pair of limit stops 111 are arranged in the annular groove 109.

[0041] When in use, first turn the adjusting sleeve 105 to slide the positioning head 110 to the position of the guide groove 108, then twitch the adjusting sleeve 105 to slide the adjusting sleeve 105 in the through hole 107 on the adjusting base 104 to achieve quick adjustment of the adjusting bolt 106. The purpose of...

Embodiment 3

[0044] like Figure 7 As shown, the main slider 118 is connected to the T-shaped slot 103 through the T-shaped slider 116, and the feed adjustment rod 112 is threaded on the main slider 118. Length, suitable for different pipe diameters. One end of the feed adjustment rod 112 located in the main slider 118 is flexibly connected with the second return spring 113, the second return spring 113 is fixedly connected to the check pin 114, and the end of the check pin 114 away from the second return spring 113 is provided with a There is a cam 115 which reduces the friction at the tip of the test pin 114 . A scale 117 is also provided on the heart-testing needle 114, which is convenient for judging the position change.

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Abstract

The invention discloses a petroleum pipeline welding line-up clamp. The petroleum pipeline welding line-up clamp comprises an adjusting ring, a fixing ring and an axial adjusting rod, the adjusting ring consists of an upper adjusting ring and a lower adjusting ring, the fixing ring consists of an upper fixing ring and a lower fixing ring, the adjusting rod comprises a first bolt and a second bolt,a plurality of limiting grooves are formed in the fixing ring, circular arc braces are distributed on the adjusting ring and the fixing ring correspondingly and are connected with the first bolt andthe second bolt correspondingly, and the first bolt and the second bolt are connected through an axial fine-adjusting nut.

Description

technical field [0001] The invention relates to the field of petroleum machinery, in particular to a welding counterpart for petroleum pipelines. Background technique [0002] The oil pipeline system, that is, the pipeline system used to transport oil and petroleum products, is mainly composed of oil pipelines, oil stations and other auxiliary related equipment. For transportation equipment, compared with railway and highway oil transportation, which are also land transportation methods, pipeline oil transportation has the characteristics of large transportation volume, good airtightness, low cost and high safety factor. [0003] Oil pipelines must use a certain link to form a complete system. There are three main types of pipe connection methods: threaded, welded and flanged. For lines with high pressure and strict sealing requirements, welding is basically used. When welding the pipes, it is necessary to use a counterpart in advance to ensure the stability of the positi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/053
Inventor 尹立孟苏子龙徐永庚王刚许章亮
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY