Hydraulic pipeline inner butt-jointing device

It is a hydraulic-type technology with internal counterparts, which is applied in the direction of auxiliary devices, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., and can solve problems such as inability to achieve nozzle shaping, failure to meet welding construction requirements, and poor nozzle quality. To achieve the effect of light weight, simple structure, and large jacking force
CN101480770AInactive Publication Date: 2009-07-15冯岩
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
冯岩
Publication Date
2009-07-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a hydraulic type aligning device inside a pipeline, which is used for the welding construction of a long-distance oil and gas transporting pipeline and mainly comprises a shell, a hydraulic power station, a sliding mechanism, an expanding mechanism, a running mechanism and a straightening mechanism. Furthermore, the hydraulic type aligning device inside a pipeline is characterized in that a jacket of a hydraulic station is internally fixed with the hydraulic power station, a jacket of a liquid tank is internally provided with a hydraulic cylinder, a main shaft is sleeved with a rear sliding sleeve and a front sliding sleeve, and the other end of a traction frame is fixed to the end part of the rear sliding sleeve. Furthermore, the rear sliding sleeve is driven by the hydraulic cylinder to reciprocate on the main shaft, each sliding sleeve adopts an articulated axle fixed with two main top plates and a parallel top plate, an isoceles triangle is formed by the two main top plates, and the parallel top plate is fixed with two support pillars and a jacking. The invention can realize pipe opening alignment, stable and reliable positioning, large pushing force and pipe opening shaping, and can slightly adjust the lifting height and enhance the centric precision of fitted up pipe openings. In addition, the invention has light weight, low price and simple structure.
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Description

technical field

[0001] The invention relates to the technical field of pipeline construction, in particular to the technical field of welding construction of long-distance oil and gas pipelines, and relates to a hydraulic pipeline internal counterpart for welding pipelines. Background technique

[0002] Pipeline transportation has become an emerging fluid transportation industry is booming. And the pipeline must be connected through welding one by one when the pipeline is welded. In order to ensure the quality of welding, the first thing to solve is that the nozzles are aligned and the positioning is stable and reliable. A variety of counterparts have been used in pipeline welding at home and abroad.

[0003] The counterparts used in pipeline welding construction are mainly divided into two types: external counterparts and internal counterparts. The function of the external mouthpiece is to align the ends of the two pipes that need to be welded from the outside of the pip...

Claims

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