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Mechanical equipment fault on-line diagnostic equipment and method

A technology for mechanical equipment and diagnostic devices, applied in electrical testing/monitoring, etc., can solve the problems of large size, high power consumption, poor anti-interference performance, etc., and achieve the effect of strong anti-interference, low power consumption and high reliability

Inactive Publication Date: 2009-11-25
TANGSHAN COLLEGE
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Problems solved by technology

At present, the fault diagnosis of mechanical equipment is generally implemented by general-purpose computers. The problems are large volume, high power consumption, and poor anti-interference performance, which are not suitable for installation in industrial sites; in addition, its calculation speed is difficult to meet the requirements of real-time fault diagnosis. It takes at least 1 to 2 minutes to complete a fault diagnosis with a general-purpose computer device, which cannot ensure the safe and reliable operation of mechanical equipment in time

Method used

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  • Mechanical equipment fault on-line diagnostic equipment and method

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Embodiment Construction

[0011] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

[0012] In the embodiment, the analog-to-digital conversion chip 2 whose model is AD7656AST is connected with the first-in-first-out memory chip 20 whose model is IDT72V235L15PF; The memory chip 20 is connected to control high-speed data acquisition; the microprocessor chip 15 of ARM9-S3C2440 is connected to the complex programmable logic device chip 5 to start data acquisition; the digital signal processing chip 7 of ADSP-TS201S is connected with the first-in-first-out Memory chip 20 links to each other, reads the data that collects; Digital signal processing chip 7 links to each other with microprocessor chip 15 through the dual-port RAM chip 9 that model is IDT70V24, carries out data exchange; Model is that the analog-digital conversion chip 1 of MAX1290ACEI and micro Processor 15 links to each other, transmits the data collected at low speed;...

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Abstract

The invention relates to a device and method for fault diagnosis of mechanical equipment, in particular to a device and method for online fault diagnosis when the mechanical equipment is running. The technical solution is: under the control of the complex programmable logic device (5), the vibration signals of the bearing seat and the shaft of the monitored equipment are collected, and the digital signal processing chip (7) is used to calculate the correlation dimension of the signal and analyze the axis trajectory. Under the control of the device (15), the temperature signal of the bearing seat is collected, and the data is exchanged between the digital signal processing chip and the microprocessor through the dual-port random access memory (9) quickly and reliably, and the operating condition of the equipment is judged according to the amplitude of each signal. An alarm is issued when the limit is preset, and equipment faults are diagnosed according to the correlation dimension and the axis trajectory. Due to the embedded computer structure, small size, low power consumption, and high reliability, it is suitable for industrial field installation and application. It can complete a device fault diagnosis within 5 seconds and provide users with sufficient information about the status of the device in real time.

Description

Technical field: [0001] The invention relates to a device and method for fault diagnosis of mechanical equipment, in particular to a device and method for online fault diagnosis when the mechanical equipment is running. Background technique: [0002] The performance of mechanical equipment will gradually deteriorate during operation, and failures will occur under certain conditions. The analysis and early prediction of the causes of these failures are very important to ensure the smooth progress of industrial production. At present, the fault diagnosis of mechanical equipment is generally implemented by general-purpose computers. The problems are large volume, high power consumption, and poor anti-interference performance, which are not suitable for installation in industrial sites; in addition, its calculation speed is difficult to meet the requirements of real-time fault diagnosis. , It takes at least 1 to 2 minutes to complete a fault diagnosis with a general-purpose comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
Inventor 雷振山赵晨光
Owner TANGSHAN COLLEGE
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