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Automatic large pipeline cutting machine

A cutting machine and cutting mechanism technology, applied in the direction of metal sawing equipment, sawing machine, metal processing equipment, etc., can solve the problems of unsuitable submarine pipelines, low quality requirements for end faces, and inability to meet the cutting requirements of submarine pipelines, etc.

Inactive Publication Date: 2016-05-11
HEBEI UNIV OF TECH
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  • Abstract
  • Description
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Problems solved by technology

[0003] The patent No. 03211351.X of China’s authorized patented pipe automatic cutting machine, the cutting torch installed is a thermal cutting method, which is suitable for pure steel pipes and the environment where the quality of the end face is not high, and it is not suitable for submarine pipes with multi-layer mixed materials , and cannot meet the cutting requirements of submarine pipelines

Method used

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Embodiment

[0033] The large-scale pipeline automatic cutting machine provided by the present invention comprises a cutting mechanism 1, a lifting mechanism 2, a circular traveling mechanism 3, an installation base plate 4 and a circumferential track 5; the circumferential traveling mechanism and the lifting mechanism are all installed on the installation base plate, and the circumferential track surrounds the pipeline to be cut 6 Circumferential installation, the circular walking mechanism moves along the circular track and drives the installation bottom plate to move circularly along the pipeline to be cut; the cutting mechanism is installed at the end of the lifting mechanism.

[0034] The circular track is a cylindrical circular track formed by splicing arc-shaped guide rails 51. The arc-surface guide rails 51 are connected and fixed by fastening screws 52. The inner surface of the circular track is in close contact with the outer surface of the pipe to be cut. There are convex ribs on...

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Abstract

An automatic large pipeline cutting machine is characterized by comprising a cutting mechanism, a lifting mechanism, a circumference walking mechanism, an installing bottom plate and a circumference rail; the circumference walking mechanism and the lifting mechanism are both installed on the installing bottom plate, the circumference rail is installed around the circumference of a pipeline to be cut, the circumference walking mechanism moves along the circumference rail and drives the installing bottom plate to move along the circumference of the pipeline to be cut; and the cutting mechanism is arranged at the tail end of the lifting mechanism.

Description

technical field [0001] The invention relates to an automatic cutting machine, in particular to an automatic cutting machine for submarine pipelines. technical background [0002] With the continuous development of modern science and technology, the oil and gas in the ocean has been continuously developed. Since the submarine pipeline can be continuously transported on the seabed through a sealed pipeline, it is also the fastest, safest, most economical and reliable offshore oil and gas transportation method. During the laying and maintenance of submarine pipelines, the pipelines need to be cut to meet the actual application requirements. There are two types of submarine pipelines: single-layer pipelines include concrete protection layer, anti-corrosion insulation layer, and steel pipe layer; double-insulated pipelines include: anti-corrosion insulation layer, steel casing, polyurethane foam, and steel pipe layer. In the existing cutting technology, the underwater dry cutti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D45/12B23D47/08B23D47/02
CPCB23D45/12B23D47/02B23D47/08
Inventor 关玉明燕唐邱子桢赵越李军
Owner HEBEI UNIV OF TECH
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