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Method and apparatus for railway wheel ultrasonic testing apparatus

一种超声、车轮的技术，应用在铁路车辆测试、机械设备、使用声波/超声波/次声波分析固体等方向，能够解决车轮旋转偏移、不稳定等问题

Active Publication Date: 2012-12-26
AMSTED RAIL CO INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These instabilities result in a rotational offset of the wheel from the axial centerline about the geometric center of the wheel in the test fixture

Method used

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  • Method and apparatus for railway wheel ultrasonic testing apparatus
  • Method and apparatus for railway wheel ultrasonic testing apparatus
  • Method and apparatus for railway wheel ultrasonic testing apparatus

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Embodiment Construction

[0029] Although this specification refers to testing of railway wheels, it should be understood that the testing apparatus and methods disclosed herein are equally applicable to other cast and forged wheels used in industries unrelated to the railway industry. Accordingly, the description of the new method and apparatus in relation to train wheels is for convenience only.

[0030] Ultrasonic testing equipment for train wheels

[0031] exist figure 1 in the front view of and figure 2 An embodiment of an ultrasonic testing device is shown in side view. Ultrasonic test equipment is designed to be used by Figure 9 Non-damaging evaluation and internal topography measurements of the structure of an exemplary type of railway wheel 100 are shown.

[0032] In one embodiment, the ultrasonic testing apparatus includes an ultrasonic testing fixture 11 and an ultrasonic sensing assembly 90 for capturing and rotating a wheel. Additionally, in some embodiments, a CPU (such as a progra...

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Abstract

A method and apparatus (10) for collecting ultrasonic test data from a railway wheel with an ultrasonic testing apparatus are described. The railway wheel (100) is supported by two drive rollers (150, 152), each having an indentation (190, 192) which engages with and rotates the wheel. An indexing transducer moves across the rotating wheel, collecting ultrasonic test data while a fixed transducer correlates a reference position on the wheel to the collected test data. To maintain the accuracy of the reference position to the collected test data, it is desirable to maintain the rotational stability of the wheel (100), minimizing any dynamic instability caused by dimensional tolerances in the wheel. To mitigate instabilities resulting from dimensional tolerances, the indentation of the drive rollers, which engage and drive the flange of the wheel, are variably spaced using a resilient member to maintain frictional contact between the wheel (100) and the drive roller (150, 152). This allows the indentation to accommodate the varying dimensional tolerances of the wheel flange, mitigating the possibility of dynamic instability resulting from departure of the wheel flange from the indentation.

Description

[0001] Cross References to Related Applications [0002] This application is related to US Patent No. 5,864,065, issued to Prorok on January 26, 1999, entitled "Test Apparatus for Railroad Wheels," which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to ultrasonic testing, and more particularly, in one embodiment, to ultrasonic testing of railway wheels. Background technique [0004] Railroad wheels are usually forged or cast steel, and despite strict quality control measures, may contain defects resulting from the manufacturing process. These defects can potentially include voids, cracks, and impurities that can weaken the wheel and potentially lead to wheel failure. Ultrasonic testing has been commonly used to detect such defects. [0005] Ultrasonic analysis of train wheels by fixed position transducers typically only examines the wheel and its underlying structure at discrete, single locations around the peri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/32G01N29/04
CPCG01M17/10F16H55/56G01N2291/2696G01N29/27G01N29/225
Inventor J·R·奥利弗J·D·奥利弗
Owner AMSTED RAIL CO INC
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