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Gearbox gear peeling fault detection method

A technology of fault detection and gearbox, applied in special data processing applications, instruments, electrical digital data processing, etc., to achieve the effect of solving the problem of parameter selection

Pending Publication Date: 2021-08-03
XIAN TECHNOLOGICAL UNIV
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  • Abstract
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Problems solved by technology

[0005] The invention provides a gear box gear spalling fault detection method, which solves the problems existing in the existing detection method

Method used

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  • Gearbox gear peeling fault detection method
  • Gearbox gear peeling fault detection method
  • Gearbox gear peeling fault detection method

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Embodiment Construction

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] see figure 1 , the basic scheme adopted in the present invention is:

[0025] According to the characteristics of the planetary gearbox, the present invention establishes a time-varying meshing stiffness calculation model for normal gear internal and external meshing gear pairs and external meshing gear pair tooth surface spalling faults, and obtains the time-varying meshing stiffness variation law of spalling fault gear pairs in different degrees . ...

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Abstract

The invention relates to a gearbox gear peeling fault detection method, which comprises the following steps: firstly, calculating meshing rigidity and TVMS, and establishing a kinetic model; then, collecting gear signals, and analyzing the signals through a GWO-TVF-EMD method; and finally, decomposing and analyzing the strength of the signal in an off-line manner to judge the strength of the peeling fault. According to the method, the pure torsion dynamic model of the planetary gear train is established, the model is solved to obtain the system vibration response characteristics, the system vibration response characteristics in the normal state and the different-degree peeling fault state are extracted, the influence of the change of the peeling fault degree on the system vibration response can be reflected, and then the evolution process of the gear peeling fault is evaluated. According to the method, the running state of the gear can be monitored, whether the gear has a peeling fault or not can be judged, the degree of the peeling fault of the gear can be recognized, and meanwhile the parameter selection problem existing in an original gear box vibration signal processing method is solved.

Description

technical field [0001] The invention belongs to the technical field of gear box fault detection, and in particular relates to a gear box gear spalling fault detection method. Background technique [0002] As an important part of modern mechanical equipment, the gearbox is responsible for the overall power transmission, power transmission, speed change and other functions of the machine. Compared with other gearboxes, the planetary gearbox has the advantages of light weight, large transmission ratio range and strong bearing capacity. , which can be used in industrial fields such as mining equipment, cranes and elevators, and is also widely used in high-precision manufacturing engineering fields such as wind turbines, thermal power plants, and aerospace. [0003] When the tooth surface of the planetary gear is peeled off, the change of the time-varying meshing stiffness (TVMS) of the planetary gear will have a certain impact on the dynamic vibration response of the planetary g...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06F30/20G06K9/00G06F119/14
CPCG06F30/17G06F30/20G06F2119/14G06F2218/08
Inventor 曹蔚苟臻元杨壮壮郭雅泓韩昭王栋
Owner XIAN TECHNOLOGICAL UNIV
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