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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
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86-571-87041360,87239525
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No.9 Gaoguannong,Daxue Road,Hangzhou,China
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meem_contribute@163.com
Abstract: Aiming at the problem of the high cost of vibration signal monitoring and the inapplicability of the simple vibration amplitude monitoring device to motor fault diagnosis, a vibration monitor for motor bearing was developed. Firstly, the overall design of bearing vibration monitor was carried out, including the function, overall architecture and communication instruction code of the vibration monitor were designed. Then, the hardware selection research of the vibration monitor was carried out, and the hardware circuit schematic diagram of the vibration monitor which based on STM32F407ZGT6 chip was designed. The main program, analog to digital (AD) conversion acquisition program and controller area network (CAN) bus communication program of the vibration monitor was developed, which forming the special software of the vibration monitor. Finally, the system function of the vibration monitor test in laboratory environment was carried out,and the field application test was carried out on the fan motor of an air shaft in a coal company. The experimental results show that the acquisition accuracy of the vibration monitor is high, and the average error of the amplitude and frequency of the collected signal is 2.57% and 0.76% respectively. The experimental results show that the vibration monitor can collect and store the running data of motor bearing stably for a long time, which can provide data support for the research of motor bearing fault diagnosis.
Key words: STM32; motor bearing; vibration monitor; controller area network(CAN) bus communication; mining motor