Underwater rope saw cutting machine

A cutting machine and wire saw technology, applied in the field of underwater wire saw cutting machines, can solve the problems of uneven force on the feeding mechanism, limited underwater working depth, and unadjustable speed, and achieve strong practical value and safety guarantee. , moving simple effects

Inactive Publication Date: 2009-06-03
HARBIN ENG UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Based on the shortcomings of the existing wire saw cutting machine: the speed cannot be adjusted in the feeding mode, the force on the feeding mechanism is uneven, the underwater working depth is limited, the tension device lacks sensor measurement as a guarantee, and it is difficult to operate underwater. A novel wire saw cutting machine architecture is proposed

Method used

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  • Underwater rope saw cutting machine
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  • Underwater rope saw cutting machine

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Embodiment Construction

[0024] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0025] Combining Figure 1 and Figure 2, in the composition of the underwater wire saw cutting machine, 1 is the feeding device, 2 is the cutting mechanism, 3 is the buoy, 4 is the tensioning device, and 5 is the clamping device. When it works, the tensioning device 4 first tensions the diamond rope, and then the underwater pipeline is clamped by the clamping device 5. At this time, the feeding device 1 drives the cutting mechanism 2 to move downward until the entire pipeline is cut. Wherein the buoy 3 can carry out buoyancy adjustment by opening the valve and entering water.

[0026] Combining 3 and Fig. 4, 6 is a hydraulic motor in the composition of the feeding device, 7 is a transmission, 8 is a worm gear screw lifter, 9 is a lead screw, and 10 is a fixed bracket. When it works, the hydraulic motor 6 rotates and outputs to the transmission 7 and then to the wo...

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PUM

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Abstract

The invention provides an underwater rope saw cutting machine which comprises a feeding mechanism, a clamping mechanism arranged at the lower part of the feeding mechanism, and a cutting mechanism arranged on the feeding mechanism. Compared with various rope saw cutting machines in the prior art, the rope saw cutting machine of the invention has the most remarkable advantages that the underwater rope saw cutting machine utilizes the triangularly fixed feeding mechanism, thus enhancing working stability, measuring a tensioning mechanism of resultant force and changing buoyancy under the water by a pontoon, cutting away a damaged submarine pipeline in a manner of speed changing, being adapted to the requirements of various pipelines and causing the rope saw cutting machine to be more universal and operable; meanwhile, due to the adoption of a tensioning device of a force sensor, the tensioning force can be adjusted, no tensioning insufficiency or over-tensioning happens, and the safety is also ensured.

Description

(1) Technical field [0001] The invention relates to an underwater cutting operation equipment, especially an underwater wire saw cutting machine for cutting large-diameter or multi-material-filled pipelines such as damaged oil and gas pipelines on the seabed, and discarded jackets on offshore platforms. (2) Background technology [0002] Submarine pipeline repair is a marine project with high technical content, wide range of specialties, complex construction operations, high investment and high risk, requiring multiple types of senior professionals. Reasonable maintenance methods and necessary maintenance equipment should be adopted during the restoration process. Repair according to the maintenance process. [0003] my country started late in the research and development of submarine pipeline maintenance technology and equipment, and is currently able to carry out maintenance operations for submarine pipelines in shallow water areas. In order to ensure the safe production ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26D1/48B26D7/02B28D1/02B28D1/22
Inventor 王立权张波王刚张岚
Owner HARBIN ENG UNIV
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