文档介绍：太原理工大学
硕士学位论文
便携式轴承故障检测仪的研究与设计
姓名:李珊珊
申请学位级别:硕士
专业:机械制造及其自动化
指导教师:梁义维
20100601
太原理工大学硕士研究生学位论文
便携式轴承故障检测仪的研究与设计
摘要
滚动轴承是***广泛使用的配套件和基础件,被人们称为机械的
关节,它的运行状态是否正常往往直接影响整台机器的性能(包括精度、
可靠性及寿命等),因此滚动轴承故障诊断具有重要的现实意义。本文针对
目前国内便携式轴承故障检测仪普遍存在着价格昂贵、功能单一等局限性,
设计了低成本、低功耗、功能强的便携式轴承故障检测仪。
本文设计的便携式轴承故障检测仪基于低功耗的 MSP430F149 单片机开
发,具有时域参数指标法和冲击脉冲法两种滚动轴承故障诊断方法。本检
测仪采用峭度和有效值作为检测滚动轴承有否故障的时域参数指标,兼顾
了滚动轴承故障检测的敏感性和稳定性。本文对传统的冲击脉冲法进行了
改进,提高了检测速度,并且易于单片机实现。
本文介绍了以 MSP430F149 为核心的系统的研制过程,主要包括电源模
块、信号调理模块、单片机控制模块等几大模块的硬件电路设计和软件编
程。
基于单片机,按照时域参数指标法和冲击脉冲法方法研究设计的检测
系统构成较为简单,提高了滚动轴承故障诊断的实时性和诊断结果的可靠
性,同时不要求操作人员具有专业知识,减少了人为差错,使系统的可接
受性得到了提高。
关键词:滚动轴承,故障诊断,时域参数,冲击脉冲,单片机
I
太原理工大学硕士研究生学位论文
RESEARCH AND DESIGN OF PORTABLE
BEARING FAULT DETECTOR
ABSTRACT
The rolling bearing is accessory and basic part which widely used in
machinery industry. It is known as mechanical joints, which affect the
performance of the whole machine (including accuracy, reliability and service
life, etc.). Rolling bearing Fault Diagnosis therefore has important practical
significance. The paper developed a portable bearing fault detector with low cost,
low power consumption and strong function to solve the problems like high
price, simplex function and others.
The portable bearing fault detector based on low power consumption
MSP430F149 is developed in the paper. The detector used in rolling bearing
fault diagnosis method is time-domain parameter index method and the Shock
Pulse Method. The system test whether the failure of rolling bearings used in
time domain parameter is the kurtosis and RMS. Kurtosis and RMS take into
account the sensitivity and stability in the detection of rolling bearing failure.
The paper improved traditional Shock Pulse Method. The new method can
improve the detection speed and easy-to-MCU.
The core of system is MSP430F149. All processes of the development of
the system, which is consists of these main modules: power sup