Ultrasonic phased array detection device and method for automobile third-generation hub bearing outer ring

An ultrasonic phased array and hub bearing technology, which is used in measurement devices, the use of sonic/ultrasonic/infrasonic waves to analyze solids, and the testing of mechanical components to improve detection efficiency, improve imaging accuracy and computing speed, and enhance detection sensitivity.

Pending Publication Date: 2021-06-25
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an ultrasonic phased array detection method for the outer ring of the third-generation wheel bearing of the automobile in view of the above-mentioned existi...

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  • Ultrasonic phased array detection device and method for automobile third-generation hub bearing outer ring
  • Ultrasonic phased array detection device and method for automobile third-generation hub bearing outer ring
  • Ultrasonic phased array detection device and method for automobile third-generation hub bearing outer ring

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Embodiment Construction

[0029] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Such as figure 1 As shown, the ultrasonic phased array detection device for the outer ring of the third-generation wheel hub bearing of the automobile includes an ultrasonic detector 1, a water tank 2, a six-degree-of-freedom manipulator 3, an ultrasonic phased-array probe 4, and a rotating support. The ultrasonic detector passes through the six-degree-of-freedom manipulator Connected with the ultrasonic phased array probe, the rotating support includes a four-jaw chuck 6 and a rotating tray 7. The rotating tray is installed inside the water tank, and the four-jaw chuck is installed on the rotating tray, which is used to clamp the outer surface of the wheel hub bearing to be tested. Circle 5.

[0031] Such as image 3 As shown, the present invention adopts the water immersion method to place ...

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Abstract

The present invention provides an ultrasonic phased array detection device and method for an automobile third-generation hub bearing outer ring, a phased array probe is arranged on the side wall of the hub bearing outer ring, and a six-degree-of-freedom mechanical arm with the probe is used for conducting ultrasonic phased array detection on the hub bearing outer ring along the section of the hub bearing outer ring, and a phased array probe array element self-transmitting and self-receiving mode is adopted to obtain a reflection echo signal of the hub bearing outer ring defect and transmit the reflection echo signal to a computer. Computer writing software carries out data storage and signal processing on the received reflection echo signals, and finally, a frequency domain synthetic aperture focusing imaging algorithm is used for carrying out defect imaging on the hub bearing outer ring. According to the method, a water immersion ultrasonic phased array detection method is adopted, and the problems are solved that ultrasonic scattering of a small-angle, small-size, thin-wall and complex curved surface of the hub bearing is serious, and the defect detection blind area is large, and the defect detection capability of the hub bearing is improved.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic nondestructive testing, and in particular relates to an ultrasonic phased array testing method for the outer ring of a three-generation wheel hub bearing of an automobile. Background technique [0002] The main function of the hub bearing is to bear weight and provide precise guidance for the rotation of the hub. It bears both axial load and radial load, and is a very important component. [0003] Its advantage is that it uses electronic control to focus, which can not only control the axis, deflection direction, focus position and focus size of the sound beam generated by the probe very flexibly and conveniently, but also ensure the accuracy easily. In non-destructive testing, ultrasonic phased array technology can improve signal-to-noise ratio, detection sensitivity and detection efficiency. [0004] The cross-section of the outer ring of the third-generation automobile wheel bearing contain...

Claims

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Application Information

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IPC IPC(8): G01N29/04G01N29/44G01M13/045
CPCG01M13/045G01N29/04G01N29/44
Inventor 汪小凯戴殊同华林李一轩关山月
Owner WUHAN UNIV OF TECH
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