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Pipeline magnetic flux leakage detector clamping device

A clamping device and detector technology, used in special tubes, tube components, material magnetic variables, etc., can solve the problems affecting the accuracy of the detection results, the detection is not comprehensive enough, etc., to achieve high reliability, wide detection range, practicality strong effect

Inactive Publication Date: 2019-12-20
浙江越新检测技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing magnetic flux leakage detector clamping device can only move axially along the pipe wall when it walks in the pipeline, so the magnetic flux leakage detector fixed on it can only detect defects on one axis. There are certain limitations, and the detection is not comprehensive enough, which affects the accuracy of the detection results

Method used

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  • Pipeline magnetic flux leakage detector clamping device
  • Pipeline magnetic flux leakage detector clamping device
  • Pipeline magnetic flux leakage detector clamping device

Examples

Experimental program
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Effect test

Embodiment 1

[0025] see figure 1 , a clamping device for a pipeline magnetic flux leakage detector, comprising a sleeve 1 and a mounting seat 2, a plurality of mounting seats 2 are evenly distributed on the outer circumference of the sleeve 1, and the outer side of the mounting seat 2 is provided with a main end surface and a side end surface, A drive motor 3 is fixedly embedded in the sleeve 1, a main bevel gear 4 is installed at the output end of the drive motor 3, and a steering drive mechanism is installed between adjacent mounting seats 2;

[0026] see figure 2 , the steering drive mechanism includes a support rod 7, a transmission shaft 6 and a roller 16, the number of the support rod 7 is two, and one end of the support rod 7 is vertically installed on the side end surface of the mounting seat 2 and can be wound on the side end surface Its own center line rotates, and the other end of the rotating sleeve is provided with a roller shaft 15, and a roller 16 is fixedly installed on t...

Embodiment 2

[0037] see Figure 5 , in order to make the clamping device of the pipeline magnetic flux leakage detector applicable to the detection of pipeline magnetic flux leakage with different diameters, the steering drive mechanism should have a telescopic adjustment function. Therefore, this embodiment has made further improvements on the basis of embodiment 1. Improvement, the improvement is: the support rod 7 is an elastic telescopic rod, the transmission shaft 6 is composed of an upper transmission shaft and a lower transmission shaft, and a shaft sleeve 8 is sleeved at the connection between the upper transmission shaft and the lower transmission shaft. The shaft sleeve 8 is connected with the upper transmission shaft and the lower transmission shaft by a key, and the upper transmission shaft can freely expand and contract along the axial direction of the shaft sleeve 8;

[0038]In order to ensure the reliability of transmission between the shaft sleeve 8 and the upper transmissi...

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Abstract

The invention discloses a pipeline magnetic flux leakage detector clamping device. The device comprises a sleeve and a plurality of mounting bases. The multiple mounting bases are uniformly distributed on the periphery of the sleeve. A main end surface and side end surfaces are arranged on the outer side of each mounting base. A driving motor is fixedly embedded in the sleeve. A main bevel gear ismounted at the output end of the driving motor. Steering driving mechanisms are mounted between the adjacent mounting bases. A detecting assembly is fixed to the main end surface of each mounting base. According to the pipeline magnetic flux leakage detector clamping device provided by the invention, the driving motor drives the steering driving mechanisms, distributed circumferentially, to move,meanwhile, the rotating angle of supporting rods is adjusted, thus, the rolling trajectories of rollers can be changed, detecting probes spirally rotate along the inner wall while forwarding in the axial direction of a pipeline, accordingly, omnidirectional magnetic flux leakage detection is achieved, the detection range is wider, detection results are more accurate, and the reliability is higher; and the steering driving mechanisms can freely change according to pipelines with different pipe diameters, the application range is wide, and the practicability is higher.

Description

technical field [0001] The invention relates to the technical field of pipeline magnetic flux leakage detection, in particular to a clamping device for a pipeline magnetic flux leakage detector. Background technique [0002] Pipelines are an important way of long-distance transportation of oil and natural gas. Pipelines work under high pressure, long distances, and harsh external environments. Due to various reasons such as transmission medium corrosion, stress, construction damage, and natural disasters, various defects will occur on the pipe wall. , These defects are very harmful to the safe operation of the pipeline, and early detection of defects is an important means to guide pipeline maintenance work and maintain pipeline integrity. At present, the more common in-service detection method for pipeline defects is magnetic flux leakage detection technology. The principle of magnetic flux leakage detection is: when the ferromagnetic steel pipe is fully magnetized, the magn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/32F16L55/40G01N27/83F16L101/30
CPCF16L55/32F16L55/40F16L2101/30G01N27/83
Inventor 金杭飞
Owner 浙江越新检测技术有限公司
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