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Rotating shaft fault detection system and method based on vision measurement

A visual measurement and fault detection technology, which is applied in the direction of measuring devices, optical testing of flaws/defects, and material analysis through optical means, can solve problems such as expensive testing costs, low efficiency, and susceptibility to noise interference, and achieve high-efficiency measurement, Efficient and convenient detection, the effect of efficient analysis of the dynamic characteristics of the shaft

Inactive Publication Date: 2021-05-07
FUZHOU UNIV
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Problems solved by technology

The methods of crack detection and location can be summarized into two types: direct test method and vibration test method. The direct test method mainly relies on technologies such as ultrasonic, infrared, X-ray and electric potential to identify cracks, although this method has been applied in many fields. , but due to factors such as high test cost, low efficiency and susceptibility to noise interference, this method is currently only suitable for offline detection

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  • Rotating shaft fault detection system and method based on vision measurement
  • Rotating shaft fault detection system and method based on vision measurement
  • Rotating shaft fault detection system and method based on vision measurement

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Please refer to figure 1 , the present invention provides a rotating shaft fault detection system based on visual measurement, including a drive controller 1, a drive motor 2, a coupling 3, a left end bearing 4, a rotating shaft 5, a counterweight disc 6, a crack 7, and a right end bearing 8 , high-speed camera 9, computer 10. Different types of digital signals generated in the drive controller 1 control the drive motor 2 to rotate at a rated speed. The drive motor 2 is connected to the rotating shaft 5 through the coupling 3. The rotating shaft 5 is supported by the left end bearing 4 and the right end bearing 8 respectively. The rotating shaft 5 The length is 620 mm, the diameter is 10 mm, the material elastic modulus is 210000 N / mm², and the material density is 7850 g / mm 3 . A counterweight disc 6 is arranged in the middle of the rotating s...

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Abstract

The invention relates to a rotating shaft fault detection system based on visual measurement, which is characterized by comprising a rotating shaft unit, a visual measurement unit and a data processing unit which are connected in sequence, the rotating shaft unit comprises a driving controller, a driving motor, a coupling and a rotating shaft which are connected in sequence; a stripe pattern is sprayed on the rotating shaft; and the visual measurement unit acquires a stripe image on the surface of the rotating shaft and transmits the stripe image to the data processing unit in real time for processing, so that multi-dimensional vibration information of the rotating shaft is acquired. According to the invention, more efficient measurement and dynamic characteristic analysis of the rotating shaft are realized, and more efficient and convenient detection of cracks of the rotating shaft is realized.

Description

technical field [0001] The invention relates to the field of vibration non-destructive testing, in particular to a visual measurement-based rotating shaft fault detection system and method. Background technique [0002] There are a large number of rotating equipment in the engineering field. During the high-speed rotation of the crankshaft, due to the synergistic effect of gravity and unbalanced forces, cracks are easily damaged. If the crack defect is not detected in time, once the shaft system is broken, the safety of workers and economic interests will be seriously damaged. Therefore, it is necessary to regularly check the operation status of the rotating shaft, find crack defects as early as possible, and take effective protective measures to ensure the safe and stable operation of the rotating shaft system. The methods of crack detection and location can be summarized into two types: direct test method and vibration test method. The direct test method mainly relies on ...

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Application Information

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IPC IPC(8): G01N21/88
CPCG01N21/8851
Inventor 钟舜聪徐帖钟剑锋林云粦
Owner FUZHOU UNIV
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