Device for cutting oil pipe in pressure cavity working under pressure and process for pulling out cut oil pipe

By designing an oil pipe cutting device for pressure-operated operations in a pressure chamber and adopting hydraulically driven and gear-transmitted disc blade cutting technology, the problems of difficult construction, low efficiency and high cost in the existing technology are solved, and efficient and reliable oil pipe cutting is achieved.

CN120719940AActive Publication Date: 2025-09-30XIAN YUXING PETROLEUM MASCH NEW TECH DEV CO LTD
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Patent Information

Application Number
CN202511242407.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2025-09-30
Estimated Expiration
2045-09-02

AI Technical Summary

Technical Problem

Existing cutting devices are difficult to operate under pressure, have low efficiency, high cost and low reliability, and are unable to effectively cut oil pipes.

Method used

A device for cutting oil pipes in a pressure chamber during pressurized operation is designed. It adopts two cutting units, each of which includes a drive assembly, a feed assembly and a cutter head assembly. A hydraulic drive device and a gear transmission assembly are used to realize the rotary cutting of the disc blade. The guide rod and the feed and retract scale lines are combined to ensure the cutting accuracy.

Benefits of technology

It reduces construction difficulty and cost, improves cutting efficiency and reliability, and the disc blade is not easy to break. It can efficiently cut hollow or solid pipes and meet multiple cutting needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a cutting device for an oil pipe in a pressure cavity working under pressure and a cut oil pipe pulling-out process. The problems that an existing cutting device is large in construction difficulty, low in efficiency, high in cost and low in cutting reliability are solved. The pipe column to be cut in the vertical cavity is cut through the two cutting units arranged at the two ends of the blade stagnation cavity, each cutting unit comprises the driving assembly, the cutter feeding assembly and the cutter head assembly, the driving assembly is used for providing power for the cutter head assembly, and the cutter feeding assembly is used for driving the cutter head assembly to move; a hydraulic driving device of the driving assembly drives a transmission connecting piece to rotate, a transmission butt joint piece of the tool bit assembly is in transmission connection with the transmission connecting piece and can slide relative to the transmission connecting piece, the transmission butt joint piece is connected with the input end of the gear transmission assembly, and a disc blade is connected with the output end of the gear transmission assembly. Therefore, power can be transmitted to the disc blade through the gear transmission assembly.
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Citation Information

Patent Citations

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