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Device to detect inner base fatigue cracks of coupler traction table

A fatigue crack detection device technology, applied in the direction of material magnetic variables, etc., can solve the problems of low reliability of fatigue crack detection, and achieve the effects of fast detection speed, low detection cost and high reliability

Inactive Publication Date: 2018-05-29
CRRC YANGTZE TONGLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the deficiencies of the prior art, the object of the present invention is to provide a device for detecting fatigue cracks at the inner root of the coupler drawer, which overcomes the defect of low reliability in the detection of fatigue cracks at the inner root of the coupler drawer in the prior art

Method used

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  • Device to detect inner base fatigue cracks of coupler traction table
  • Device to detect inner base fatigue cracks of coupler traction table
  • Device to detect inner base fatigue cracks of coupler traction table

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Embodiment Construction

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0026] like Figure 1-4 The shown device for detecting fatigue cracks at the inner root of the coupler traction platform includes a magnetic pole core 3, a dense-turn magnetized coil 7 wound around the outside of the magnetic pole core, a magnetization power supply device 2 connected to the dense-turn coil, and a yoke switch 18 ;

[0027] The dense-turn coil 7 is connected to the magnetization power supply device 2 through the yoke power supply line 17 and the single-pole yoke input port 16 .

[0028] The magnetizing power supply device 2 includes a magnetizing power input port 10, an autotransformer 11, a main transformer 12, a switch 13, a magnetizing power output port 14, an...

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Abstract

The invention discloses a device to detect inner base fatigue cracks of a coupler traction table. The device comprises a magnetic pole core, a dense-turn magnetized coil wound outside the magnetic pole core, a magnetizing power device connected with the dense-turn magnetized coil, and a yoke switch; the dense-turn magnetized coil 7 is connected with the magnetizing power device 2 through a yoke power line 17 and a single-pole yoke input port 16; the magnetizing power device comprises a magnetizing power input port, an autotransformer connected with the magnetizing power input port and a main transformer connected with the autotransformer; the main transformer is connected with a magnetizing power output port through a switch; the magnetizing power output port is connected with the dense-turn magnetized coil through the single-pole yoke input port and the yoke power line. The device has high reliability to detect crack defects and also has the advantages of high detection speed, low detection cost and the like.

Description

technical field [0001] The invention relates to the technical field of fatigue crack detection devices, in particular to a fatigue crack detection device for the inner root of a coupler traction platform for railway rolling stock. Background technique [0002] A long train running on the railway is usually connected by a railway locomotive with traction power and dozens of railway vehicles without traction power. The connection between railway rolling stock is achieved by interlocking between the couplers mounted on the rolling stock and those mounted on the rolling stock. On the contrary, the separation between the locomotive and the vehicle can be realized by mutual unlocking between the couplers. The coupler for railway rolling stock (hereinafter referred to as the coupler) is used to realize the connection between the locomotive and the vehicle or the vehicle and the vehicle, and to transmit the traction and impact force, and to maintain a certain safety distance betwee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/83G01N27/84
CPCG01N27/83G01N27/84
Inventor 丁守立
Owner CRRC YANGTZE TONGLING CO LTD