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Time spectrum phase fault diagnosis device

A technology of phase failure and diagnosis device, which is applied in the direction of measuring device, vibration test, machine/structural component test, etc. It can solve the problems of loose foundation or base, unbalanced and misalignment of large units, and achieve the effect of improving accuracy

Inactive Publication Date: 2015-11-25
SHANDONG IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method is effective in most cases, in some special cases, it will cover up the vibration phenomenon, causing misunderstanding and misjudgment by technicians. The combination of phase and vibration can more accurately diagnose the imbalance and misalignment of large units. , loose foundation or base, and other abnormal faults

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  • Time spectrum phase fault diagnosis device

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Embodiment Construction

[0051] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions protected by the present invention will be clearly and completely described below using specific embodiments and accompanying drawings. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

[0052] This embodiment provides a time spectrum phase fault diagnosis device, please refer to figure 1 shown, including:

[0053] At least two vibration collection modules 1 for obtaining the mechanical vibration of the device under test;

[0054] A rotor speed acquisition module 4 for obtaining the rotor speed of the device under test;

[0055] A phase processing module 2 for generatin...

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Abstract

The invention discloses a time spectrum phase fault diagnosis device. Time domain analysis, spectrum analysis and phase analysis are effectively combined so that types and causes of equipment faults can be rapidly analyzed. There are multiple types of faults causing one-time rotating speed frequency in equipment spectrum, such as imbalance, misalignment, severe loosening and resonance, and phase analysis is an effective means for distinguishing the faults. Vibration of most equipment, such as a blower, a motor and a speed reducer, is low-frequency vibration mainly, and judgment accuracy can be greatly enhanced by application of phase analysis.

Description

technical field [0001] The invention relates to the field of time spectrum phase fault diagnosis, in particular to a time spectrum phase fault diagnosis device. Background technique [0002] In the process of equipment fault diagnosis, vibration amplitude, frequency and phase are the three elements of vibration. It is not comprehensive to ignore any one element. Many faults are closely related to phase. However, due to the limitations of equipment and technical means, when monitoring the vibration of the unit, the frequency spectrum of the vibration is mostly used as the basis for fault diagnosis. Although this method is effective in most cases, in some special cases, it will cover up the vibration phenomenon, causing misunderstanding and misjudgment by technicians. The combination of phase and vibration can more accurately diagnose the imbalance and misalignment of large units. , loose foundation or base, and other abnormal faults. Contents of the invention [0003] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02
Inventor 王鲁济
Owner SHANDONG IRON & STEEL CO LTD