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Multifunctional vibration test bench

A vibration test and test bench technology, applied in the mechanical field, can solve problems such as inability to judge the type of fault, different amplitude and characteristic spectrum, lack of cases and experience, etc.

Pending Publication Date: 2022-03-25
HUNAN CHONGDE IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This has resulted in insufficient cases and experience accumulated by research or analysts to determine the true type of failure
[0004] 1.2 Each type of fault has a corresponding characteristic frequency and spectrum, but the amplitude and characteristic spectrum corresponding to different fault degrees are not exactly the same, or the fault spectrum after multiple faults overlap is not exactly the same, it is difficult to comprehensively analyze Analysis and research on the characteristics of various types of faults

Method used

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  • Multifunctional vibration test bench
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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the technical solution in the application, the technical solution in the embodiment of the application will be clearly and completely described below, obviously, the described embodiment is only a part of the embodiment of the application , but not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0026] It should be noted that when an element is said to be "fixed" or "disposed on" another element, it may be directly on another element or indirectly disposed on another element; when an element is referred to as "connected" It may be directly connected to another element or indirectly connected to another element.

[0027] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only ...

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Abstract

A multifunctional vibration test bench provided by the present invention comprises a rotating shaft and a power device of the rotating shaft, the rotating shaft sequentially passes through a coupler, a first bearing, a balance disc, a second bearing and a third bearing, the first bearing is correspondingly provided with a snap ring for axially fixing the first bearing and a bearing seat for radially fixing the first bearing, and the power device of the rotating shaft is connected with the power device of the rotating shaft. A radial loading device for changing the load of the second bearing is mounted on the second bearing; and a bearing seat of the third bearing is mounted on the base. Compared with the prior art, the multifunctional vibration test bench provided by the invention can simulate a simulation experiment of comprehensive fault characteristics of shaft misalignment, bearing fault, unbalanced fault characteristics, influence characteristics of radial load and vibration amplitude, and common fault characteristics in the four rotating devices in a laboratory. The method is used for research of rotating machinery vibration fault theories and methods, and is of great significance to theoretical research and practical operation of vibration analysis.

Description

technical field [0001] The invention relates to the field of mechanical technology, in particular to a multifunctional vibration test bench. Background technique [0002] There are many types of rotating machines, such as generators, steam turbines, centrifugal compressors, water pumps, fans, and electric motors. The main functions of such machines are completed by rotating actions, collectively referred to as machines. Rotor unbalance, shaft misalignment, gear faults, bearing faults, etc. are common faults in rotating machinery faults. For researchers who are new to the field of vibration, it is necessary to conduct theoretical analysis and research on these faults. However, in most sites, the occurrence of various faults is very random, and it is difficult for researchers to verify in the first place. Most of the existing vibration test benches can only study and simulate 1-2 types of faults. For engineers The training efficiency is low, and the diagnosis of faults is als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02
CPCG01M7/022G01M7/025
Inventor 刘渊马海波刘毅朱杰周少华
Owner HUNAN CHONGDE IND TECH