Pipeline self-adaptive chain type cutting device

The self-adaptive chain-type pipe cutting device driven by a hydraulic motor uses mold springs and adjusting bolts to adjust the chain length and tension, solving the problems of chain breakage and path deviation during the cutting of deformed or uneven pipes, and achieving a safe and reliable cutting effect.

CN223933371UActive Publication Date: 2026-02-24LOGISTICAL ENGINEERING UNIVERSITY OF PLA
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Patent Information

Application Number
CN202520355169.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-24
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Existing chain-type pipe cutting machines cannot adaptively adjust the chain length and tension when cutting deformed or uneven pipes, which can lead to the chain breaking or the tension being too loose, causing the cutting path to deviate and making it unable to return to the starting point.

Method used

The pipe adaptive chain cutting device, driven by a hydraulic motor, adjusts the chain length and tension using a mold spring and adjusting bolts. Combined with a retractable mold spring and adjusting plate, it ensures that the chain is tightly bound to the pipe and uses abrasive water jet for cutting.

Benefits of technology

It enables adaptive adjustment of chain length and tension in the event of pipe deformation or unevenness, avoiding chain breakage and path deviation, and ensuring the safety, reliability and quality of the cutting process.

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Abstract

The utility model discloses a pipeline self-adaptive chain type cutting device, and belongs to the technical field of cutting control. Comprising a hydraulic motor which is connected with a speed reducer and provides power for the speed reducer. The speed reducer is installed on an adjusting plate through a support in the adjusting assembly, a telescopic mold spring is arranged between the adjusting plate and the bottom plate, a pull rod is sleeved with the mold spring, and the upper end and the lower end of the pull rod are connected with the adjusting plate and the bottom plate respectively; trundles are arranged on the lower end face of the bottom plate and placed on the pipeline. An output shaft of the speed reducer is connected with a gear, a chain is mounted on the gear, and the other end of the chain is hooped on the pipeline; a tool bit is installed on the upper end face of the bottom plate through a connecting assembly, and the pipeline can be cut through abrasive water jet. According to the chain type pipeline cutting machine, the mold spring is used, the chain length and the chain tensioning degree actually needed by the chain type pipeline cutting machine are adjusted in a self-adaptive mode according to the pipeline curvature radius and the curved surface flatness condition, and it is guaranteed that the cutting process and quality are safe and reliable under the flammable and explosive dangerous environment condition.
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