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Mechanical equipment monitoring method and monitoring device

A technology of mechanical equipment and monitoring device, applied in the field of monitoring

Pending Publication Date: 2018-04-20
浙江中自庆安新能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a monitoring method and a monitoring device for mechanical equipment to solve or alleviate one or more technical problems in the prior art

Method used

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  • Mechanical equipment monitoring method and monitoring device
  • Mechanical equipment monitoring method and monitoring device
  • Mechanical equipment monitoring method and monitoring device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] see figure 1 This embodiment provides a monitoring device for monitoring the state change of the mechanical equipment 10 . The monitoring device in this embodiment includes a sensor 100 , a data collection device 200 and a first server 300 .

[0048] The sensor 100 is used to measure a state analog signal of the mechanical device 10 , for example, the sensor 100 may include a vibration sensor 110 installed on the mechanical device 10 to measure a vibration signal in the state simulated signal. Usually, the vibration signal of mechanical device 10 comprises displacement signal, velocity signal or acceleration signal, therefore, vibration sensor 110 can comprise displacement sensor, is used for measuring displacement signal; Vibration sensor 110 can also comprise velocity sensor, is used for measuring velocity signal; The sensor 110 may also include an acceleration sensor for measuring acceleration signals.

[0049] Preferably, the sensor 100 may also include a temperat...

Embodiment 2

[0056] This embodiment provides a monitoring method for the mechanical equipment 10, which is applied to the monitoring device of the first embodiment.

[0057] Step S10, the mechanical equipment 10 enters the first working state, including the vibration mechanism 11 and the key phase mechanism 12 entering the first working state;

[0058] Step S20, the sensor 100 measures the state analog signal of the mechanical equipment 10;

[0059] Step S30, the data acquisition unit 200 converts the state analog signal into a state digital signal;

[0060] Step S40, the first server 300 receives the status digital signal;

[0061] Step S50, the second server 400 receives the status digital signal from the first server 300 through the remote network;

[0062] Step S60 , the client receives the status digital signal from the second server 400 .

[0063] Preferably, the monitoring method of the present embodiment also includes:

[0064] Step S70 , the first server 300 or the second server...

Embodiment 3

[0066] This embodiment provides a monitoring method for mechanical equipment, which is applied to the monitoring device in Embodiment 1, such as figure 2 As shown, the monitoring method of this embodiment includes step S110, step S120, step S130, step S140 and step S150.

[0067] Step S110, receiving a key phase signal and a vibration signal of the mechanical device in the first working state.

[0068] Step S120, using the key-phase signal as a phase reference, and obtaining a first vibration vector of the mechanical device in the first working state according to the vibration signal, where the first vibration vector is composed of a first amplitude and a first phase;

[0069] Such as image 3 Shown is a schematic diagram of the first vibration vector V1, in which the key-phase signal is used as the vector standard of vibration, the phase of the key-phase signal changes from 0 degrees to 360 degrees in one cycle, and the inner angle of circle C changes from 0 degrees to 360...

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Abstract

The invention at least provides a mechanical equipment monitoring method which comprises the steps: receiving a key phase signal and a vibration signal of mechanical equipment under some work state; utilizing the key phase signal as a phase standard and obtaining a vibration vector of the mechanical equipment under the work state according to the vibration signal, wherein the vibration vector comprises an amplitude and a phase; learning normal vibration vector space of the mechanical equipment under the work state based on a plurality of the vibration vector data; when the vibration vector exceeds the normal vibration vector space, sending an alarm signal and learning a normal vibration vector space under the next work state. By means of the technical scheme, the mechanical equipment monitoring method disclosed by the embodiment of the invention can perform vector analysis on the vibration signal, further can monitor a startup and shutdown process and a normal operation process, can autonomically learn and trace the state of the mechanical equipment and achieves the purpose of finding equipment fault early.

Description

technical field [0001] The invention relates to the monitoring field, in particular to a monitoring method and a monitoring device for mechanical equipment. Background technique [0002] For mechanical equipment, the vast majority of faults are closely related to mechanical movement or vibration, and vibration detection has the characteristics of direct, real-time and wide coverage of fault types. Vibration is the most effective physical quantity to detect the state change of mechanical equipment. Traditional vibration monitoring and early warning is based on scalar, that is, based on the total vibration energy and the energy magnitude and change trend of each multiplier frequency component to detect the state change of mechanical equipment. At the same time, the traditional vibration monitoring and early warning focuses on the state changes of the machine during normal operation, but ignores the state changes of the equipment during the start-up and shutdown process, witho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00
CPCG01H17/00
Inventor 尹旭晔林子晗
Owner 浙江中自庆安新能源技术有限公司