A Manual Ultrasonic Flaw Detection Scanning Device Used for Defect Detection of Train Wheels

A defect detection and scanning device technology, applied in measuring devices, using sonic/ultrasonic/infrasonic waves to analyze solids, and using sonic/ultrasonic/infrasonic waves for material analysis, etc. Small detection sensitivity and other problems, to achieve the effect of stable detection effect, adjustable probe spacing, to avoid missed detection of defects

Active Publication Date: 2016-08-10
BEIJING LEAD TIME SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional manual ultrasonic detection of train wheel defects uses a single probe for detection and adopts a self-generating and self-receiving detection mode. Small, often missed detection, directly affects the quality of wheel defect detection, and threatens the safety of railway traffic

Method used

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  • A Manual Ultrasonic Flaw Detection Scanning Device Used for Defect Detection of Train Wheels
  • A Manual Ultrasonic Flaw Detection Scanning Device Used for Defect Detection of Train Wheels
  • A Manual Ultrasonic Flaw Detection Scanning Device Used for Defect Detection of Train Wheels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as Figures 1 to 4 As shown, the manual ultrasonic flaw detection scanning device used in the detection of train wheel defects provided by this embodiment includes a scanning arm 1, a carrier mounting frame 2, a probe fixture 3, and a scanning auxiliary positioning mechanism 4, etc. The scanning arm 1 is installed with a sleeve structure, and the length can be adjusted telescopically. The scale line is set on the sleeve, which is convenient to accurately set the overall length of the linear guide rail. The sleeves can be locked by a self-locking switch, and grooves are set on the outer surface of the sleeve. It is used to prevent the rotation between the inner and outer sleeves; the carrier mounting frame 2 is respectively installed at both ends of the scanning arm 1 and fixed by screws. The carrier mounting frame 2 can be a concave or U-shaped structure, etc. Fixture installation crossbeams 5 with scales are respectively arranged at the exit, and the fixture insta...

Embodiment 2

[0024] Compared with Embodiment 1, the telescopic mechanical structure of the scanning arm in this embodiment is the inner and outer tie rods, which are fixed together by bolts. The numbers of the inner and outer tie rods are even and symmetrical to each other. When the inner rod overlaps the outer rod, it shrinks. When the inner rod is pulled out of the outer rod, it is stretched to adjust the length of the scanning arm.

[0025] Compared with the existing technology, it makes up for the deficiency of the defect detection of the probe in the spontaneous and self-receiving mode during the manual operation of the traditional wheel defect. The detection sensitivity of crack defects is high, and at the same time realizes the two-way scanning of the radial and oblique cracks of the spokes, avoiding missed detection of defects. The scanning device has the advantages of convenient manual operation, adjustable probe spacing, fixed relative position, and stable detection effect. It pl...

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Abstract

The invention discloses a manual ultrasonic flaw detection scanning device for defect detection of train wheels, which comprises components such as a scanning arm, a carrier mounting frame, a probe fixture, and a scanning auxiliary positioning mechanism. The scanning arm adopts a retractable mechanical structure, its length can be adjusted, and it has an automatic locking function. The carrier mounting frames are respectively installed at both ends of the scanning arm, and the probe fixtures are respectively mounted on the carrier mounting frames The fixture is installed on the crossbeam, which can be moved and fixed on the fixture installation beam according to the detection needs. The scanning auxiliary positioning mechanism is installed on the inner side of the carrier mounting frame and rolls along the top of the rim during the detection process, which can scan stably device. The present invention can be used in the ultrasonic detection mode of sending and receiving and spontaneous receiving at the same time, and has the advantages of convenient manual operation, adjustable probe distance, fixed relative position, stable detection effect and the like.

Description

technical field [0001] The invention relates to the field of train wheel detection, specifically a manual ultrasonic flaw detection and scanning device for defect detection of train wheels. Background technique [0002] The detection of train wheel defects is divided into two types: automatic detection and manual detection. Automatic detection generally uses mechanical auxiliary equipment to automatically realize the relative movement between the workpiece and the probe, and is equipped with a multi-channel ultrasonic flaw detector to achieve high-speed and rapid detection. Defects detected by automatic flaw detection often require manual scanning to assist detection to determine the equivalent size and position of the defect. Therefore, manual detection still plays an important role in the detection of train wheel defects. [0003] The traditional manual ultrasonic detection of train wheel defects uses a single probe and adopts a self-generating and self-receiving detection...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/06G01N29/26
Inventor 彭建平房瑞晓王祯杜路泉覃勤
Owner BEIJING LEAD TIME SCI & TECH
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