Study on On-line Detection Method of Heavy Duty Truck Gearbox Assembly Quality based on Wavelet Analysis

Zheng Zou; Rupeng Cao; Qing Qu; Zhezhan Tang; Kangqu Zhou; Wei Chen

doi:10.16578/j.issn.1004.2539.2021.03.006

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Study on On-line Detection Method of Heavy Duty Truck Gearbox Assembly Quality based on Wavelet Analysis

Theory·Reserach | 更新时间：2022-11-10

- Study on On-line Detection Method of Heavy Duty Truck Gearbox Assembly Quality based on Wavelet Analysis
- Journal of Mechanical Transmission Vol. 45, Issue 3, Pages: 35-39(2021)
- 作者机构：
  
  1.重庆理工大学机械工程学院，重庆 400054
  2.重庆庆铃汽车有限公司，重庆 400052
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2021.03.006
  CLC：
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邹政,曹汝朋,屈清等.基于小波分析的重载卡车变速箱装配品质在线检测方法研究[J].机械传动,2021,45(03):35-39.

Zou Zheng,Cao Rupeng,Qu Qing,et al.Study on On-line Detection Method of Heavy Duty Truck Gearbox Assembly Quality based on Wavelet Analysis[J].Journal of Mechanical Transmission,2021,45(03):35-39.
邹政,曹汝朋,屈清等.基于小波分析的重载卡车变速箱装配品质在线检测方法研究[J].机械传动,2021,45(03):35-39. DOI： 10.16578/j.issn.1004.2539.2021.03.006.

Zou Zheng,Cao Rupeng,Qu Qing,et al.Study on On-line Detection Method of Heavy Duty Truck Gearbox Assembly Quality based on Wavelet Analysis[J].Journal of Mechanical Transmission,2021,45(03):35-39. DOI： 10.16578/j.issn.1004.2539.2021.03.006.

摘要

为确定某型变速箱装配品质，从变速箱内部结构出发，简要介绍了变速箱常见装配故障，从理论上分析了变速箱在各挡位情况下各齿轮和轴承等零件的常见故障特征频率，并搭建声压信号采集平台，采集变速箱不同挡位运转时产生的声压信号，利用小波阈值去噪法对采集的原始声压信号进行去噪，并运用小波分析对去噪后的声压信号进行分解，对相应的频段信号进行谱分析，结合理论分析与实验分析的结果，获得变速箱的装配故障特征，为检查变速箱装配品质提供依据。该研究对变速箱装配品质检测具有一定的参考意义。

Abstract

In order to determine the assembly quality of a certain type of gearbox， the common assembly faults of gearbox are briefly introduced based on the internal structure of gearbox， the characteristics frequencies of common faults of each gear and bearing in each gear position of gearbox are theoretically analyzed， an acoustic signal acquisition experimental platform is built and used to collect the acoustic signals of targeted gearbox in different gears. The collected signals are further processed through using the wavelet threshold de-noising method and then decomposed by using the wavelet analysis. Through spectral analysis of the corresponding frequency band signals and combining the results of theoretical analysis and experimental analysis， the assembly fault characteristics of the gearbox are obtained， which provides a basis for checking the assembly quality of the gearbox. This research has a certain reference significance for gearbox assembly quality detection.

关键词

变速箱装配品质故障诊断小波分析

Keywords

GearboxAssembly qualityFault diagnosisWavelet analysis

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