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A Pipe Cutting Machine Based on External Datum

A pipeline cutting machine and external reference technology, which is applied in the field of ocean engineering, can solve the problems of long time-consuming cutting of machines and tools, large changes in pipe size, and low work efficiency, so as to ensure cutting efficiency and cutting quality, reduce impact and Vibration and the effect of improving cutting efficiency

Active Publication Date: 2020-07-28
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex environment of submarine pipeline maintenance work, large changes in pipeline size, and narrow working space, the existing submarine pipeline cutting machines have low efficiency and large volume, and the lowering and cutting of machines and tools takes a long time, resulting in low work efficiency.

Method used

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  • A Pipe Cutting Machine Based on External Datum
  • A Pipe Cutting Machine Based on External Datum
  • A Pipe Cutting Machine Based on External Datum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The main part of the tool is: the front end of the tool is a cutting mechanism with three knives. The main body of the mechanism is an incomplete gear turntable. rotate. The three tool holders are evenly distributed on the gear turntable, and each tool holder has two planetary gears with different heights. One planetary gear is directly meshed with the lead screw on the tool holder through a cross-axis helical gear, and one planetary gear is transformed through a set of gears. Backwards meshes with the lead screw on the tool holder through the cross-axis helical gear, so that when the turntable rotates counterclockwise and clockwise, different planetary wheels can be touched to make the tool intermittently feed. There is also a T-shaped ROV operating handle above the short planetary wheel, which can be manually retracted by the ROV after cutting or failure occurs. At the same time, an overrunning clutch is set between the planetary wheel and the planetary wheel shaft to...

Embodiment 2

[0028] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10As shown, it is mainly composed of a tool feeding mechanism 2, a tool holder 3, a driving mechanism 4, and a clamping mechanism 9. The three tool holders 3 are evenly distributed on the large turntable 11 at intervals of 120 degrees, and each tool holder has two planetary gears 303 with different heights, one of which directly passes through the large cross-axis helical gear 315, and the second small cross-axis The helical gear 316 drives the feed screw 308, and the other planetary gear 303 drives the feed screw 308 after the long planetary shaft 311 and the intermediate gear shaft 312 change directions. In this way, when the planetary gear is fed from different directions, the feed screw can be driven to rotate in an appropriate direction to complete the feed and improve the cutting efficiency. The heights of the two planetary wheels 303...

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PUM

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Abstract

The invention discloses a pipeline cutting machine based on an external reference, and belongs to the technical field of marine engineering. The pipeline cutting machine is composed of an underwater pipeline 1, a cutter feeding mechanism 2, a cutter holder 3, a driving mechanism 4, a driving motor 5, a clamping hydraulic cylinder 6, a rear frame 7, a gear cover 8, a clamping mechanism 9, a front frame 10, a large turntable 11, a guide rail bracket 12 and an arc-shaped guide rail 13; the clamping mechanism 9 is installed between the front frame 10 and the rear frame 7; an ROV carrying machine tool reaches the designated working position, and the underwater pipeline 1 is clamped by the clamping mechanism 9; the driving mechanism 4 fixed to the front frame 10 drives the large turntable 11 todo reciprocated rotation through the driving motor 5, and the cutter holder 3 is mounted on the large turntable 11; and in the rotation process, the cutter feeding mechanism 2 mounted on the cutter holder 11 enables a cutter to perform intermittent feed cutting at the suitable position. An automatic centering fixture of the pipeline cutting machine can adapt to pipelines with different pipe diameters, automatic centering can be carried out without external assistance, and the cutting efficiency and cutting quality are guaranteed.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to a pipe cutting machine based on an external reference. Background technique [0002] The underwater automatic pipe cutting machine has good pipe cutting quality, high efficiency, convenient operation, wide range of applicable pipe sizes, and compact and convenient structure. It is used in special fields such as the maintenance of submarine pipes. The underwater pipe cutting machine is usually carried to the working position by ROV for auxiliary operation and underwater operation. Due to the complex environment of submarine pipeline maintenance work, large changes in pipeline size, and narrow working space, the existing submarine pipeline cutting machines have low efficiency, large volume, and time-consuming lowering and cutting of machines and tools, resulting in low work efficiency. Contents of the invention [0003] The object of the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D21/00B23D33/04B23Q5/027B23Q5/22B23Q5/40
CPCB23D21/00B23D33/04B23Q5/027B23Q5/22B23Q5/40
Inventor 张岚茹聪王立权赵成强朱正斌
Owner HARBIN ENG UNIV