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Steel rail magnetic flux leakage detection device and method

A technology of magnetic flux leakage detection and magnet device, which is applied in the direction of material magnetic variables, etc., can solve the problems of low detection efficiency of manual hand-held detection equipment, inability to detect subsurface damage of rail head, low detection accuracy, etc., to achieve protection from Wear and tear, low equipment cost, and the effect of reducing labor intensity

Pending Publication Date: 2019-07-05
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Problems solved by technology

Among them, the detection efficiency of manual hand-held detection equipment is low, which cannot meet the needs of modern railways with rapid development.
High-speed visual inspection technology cannot detect subsurface damage of rail head, and the detection accuracy is low

Method used

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  • Steel rail magnetic flux leakage detection device and method
  • Steel rail magnetic flux leakage detection device and method
  • Steel rail magnetic flux leakage detection device and method

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0035] Such as Figure 1-Figure 4 As shown, a rail magnetic flux leakage detection device of the present invention includes a detection trolley 1 and a magnetic flux leakage detection device 3, wherein the detection trolley 1 is mainly used as a detection device and a carrier for staff, and is equipped with a power supply and a vehicle-mounted workstation. The detection car 1 mainly includes a ...

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Abstract

The invention belongs to the technical field of rail vehicle repair mechanical equipment and discloses a steel rail magnetic flux leakage detection device and method. The device comprises a detectiontrolley and magnetic flux leakage detectors, wherein the detection trolley comprises a vehicle-mounted workstation and a driving shaft box; each magnetic flux leakage detector comprises a supporting frame, screws, driving cases and magnetic flux leakage detector parts; and each magnetic flux leakage detector part comprises a magnet device and a Hall sensor, wherein the Hall sensor is used for converting a magnetic signal into an electric signal and transmitting the electric signal to the vehicle-mounted workstation, the electric signal is processed through the vehicle-mounted workstation, andtherefore the defect of a steel rail is judged. The invention furthermore discloses the corresponding detection method. According to the detection device and method, a worker drives the steel rail detection trolley, controls the magnetic flux leakage detectors installed at the two sides of the detection trolley to perform defect signal collection on the steel rail and then performs online processing on the signals through the vehicle-mounted workstation, so that real-time monitoring of steel rail defects is realized, maintenance measures are taken, and running safety of a high-speed railway isguaranteed.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle repair machinery and equipment, and more specifically relates to a rail magnetic flux leakage detection device and method. Background technique [0002] With the construction and operation of a large number of high-speed railways in my country, the total mileage of my country's railway operations has exceeded 130,000 kilometers, and railway transportation production has put forward new requirements for line maintenance operations. The original operation method of checking the line at intervals between trains has been replaced by the existing skylight operation method. However, the hand-push flaw detector with an operating speed of only 2km / h has low detection efficiency within 3-4h skylight time, and requires a lot of manpower to carry out segmented and simultaneous detection. Railway transportation is the main artery of transportation, logistics and national economy. Rail is the basic compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/83
CPCG01N27/83
Inventor 陈潇朱丹张琨张浩邱绍峰周明翔刘辉彭方进张俊岭罗小华
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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