KR101027925B1 - Portable balancing apparatus and mechanical vibration analyzing system using the same - Google Patents

Abstract

The present invention relates to a mobile balancing device for vibration analysis and a vibration analysis system using the same. The mobile balancing device according to the present invention includes: a sensing unit installed in a measurement target device to detect vibration of the measurement target device and output an analog vibration detection signal in the form of an analog signal; A DAQ board provided with a first USB connection port for receiving the analog vibration detection signal output from the sensing unit, converting the digital vibration detection signal in the form of a digital signal, and outputting the digital vibration detection signal through USB communication; A second USB connection port connected to the first USB connection port is provided to enable communication with the DAQ board through the USB communication, and a vibration for analyzing the digital vibration detection signal received through the second USB connection port. A computer terminal on which an analysis program is installed; An accommodating space for accommodating the DAQ board and the computer terminal is formed, and the portable case includes a carrying case accommodating and installed in the accommodating space to support the DAQ board and the computer terminal. Accordingly, the computer terminal and the DAQ board communicate with each other through universal serial bus (USB) communication, and history management of the measurement target device is easy.

Description

PORTABLE BALANCING APPARATUS AND MECHANICAL VIBRATION ANALYZING SYSTEM USING THE SAME}

The present invention relates to a mobile balancing device for vibration analysis and a vibration analysis system using the same. More particularly, the computer terminal and the DAQ board communicate with each other through a universal serial bus (USB) communication, and history management of the measurement target equipment is easy. One mobile balancing device and a vibration analysis system using the same.

As the development of the industry accelerates, vibration analysis technology attracts much attention. Vibration analysis technology is one of the core technologies of the industry which is classified as a national strategic material as one of essential technologies widely used in the machinery industry. It is an essential technology for the development of high precision equipment and maintenance to maintain the specified accuracy. The equipment to which this technology is applied is generally called a balancing device.

Such a balancing device can be divided into a factory balancing device which brings the measured equipment to the place where the balancing device is located on the basis of mobility and a mobile balancing device that allows an engineer to carry the balancing device in the field and work in the field. have.

Here, the rotor, ball bearing, shaft, roller bearing, gear, sliding bearing, etc., which are installed in the equipment to be measured and are accompanied by vibrations during operation The same component is a device that is difficult to separate and installed in the field, and the mobile balancing device is useful because vibration analysis work must be performed in the field for its maintenance.

However, in the conventional mobile balancing device, the engineer should go to the present situation where the device to be directly measured with the mobile balancing device is installed and perform vibration analysis, that is, the state of the device to be measured with the analyzed data, and if necessary, perform calibration work. The disadvantage is that the operator must have expertise in vibration analysis.

In addition, in managing the measurement target equipment by using a conventional mobile balancing device, the history or vibration analysis data of the measurement target device is stored in the mobile balancing device, and the measurement is performed due to the replacement of the mobile balancing device or the operator replacement. There is a problem that it is difficult to effectively share the existing history or vibration analysis data for the target equipment.

Accordingly, the present invention has been made to solve the above problems, the mobile terminal and the DAQ board is communicated through the USB (Universal Serial Bus) communication, the mobile balancing device and easy to manage the history of the measurement target equipment using the same The purpose is to provide a vibration analysis system.

According to the present invention, a mobile balancing device for vibration analysis, comprising: a sensing unit installed in the measurement target equipment to detect the vibration of the measurement target equipment to output an analog vibration detection signal in the form of an analog signal; A DAQ board provided with a first USB communication unit for receiving the analog vibration detection signal output from the sensing unit, converting the digital vibration detection signal in the form of a digital signal, and outputting the digital vibration detection signal through USB communication; A second USB communication unit connected to the first USB communication unit to communicate with the DAQ board through the USB communication, and a vibration analysis program for analyzing the digital vibration detection signal received through the second USB communication unit; An installed computer terminal; An accommodating space for accommodating the DAQ board and the computer terminal is formed and includes a carrying case accommodating and installed in the accommodating space to support the DAQ board and the computer terminal. Achieved by a mobile balancing device.

Here, the shock absorbing member may be installed in at least one region of the inner wall surface of the carrying case.

In addition, the outer surface of the carrying case may be provided with a waterproof material.

The vibration analysis program may provide a device registration screen for registering information on the measurement target device and a measurement screen for displaying data generated through analysis of the digital vibration detection signal.

On the other hand, the object is in accordance with another embodiment of the present invention, the mobile balancing device; And an analysis server having a vibration analysis database for storing information on the history of the measurement target device from the mobile balancing device and a vibration analysis information for the measurement target device analyzed by the mobile balancing device through a network. It can be achieved by a vibration analysis system characterized in that.

Here, the analysis server may transmit the data stored in the vibration analysis database to the mobile balancing device through a network at the request of the mobile balancing device.

As described above, according to the present invention, the DAQ board and the computer terminal are interconnected through USB communication, thereby enabling the use of universally used USB communication for the computer terminal, thereby limiting the selection of the computer terminal when the computer terminal is replaced. Can be reduced.

In addition, the vibration analysis information measured and analyzed by the mobile balancing device and the history information of the corresponding measurement object are integrated and managed in the vibration analysis database of the analysis server, and if necessary, re-transmitted to the mobile balancing device, Even if there is a replacement or a replacement of the operator, it is possible to effectively manage the existing history or vibration analysis data for the equipment to be measured.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is a perspective view of a mobile balancing device 1 according to the invention, and FIG. 2 is a control block diagram of the mobile balancing device 1 according to the invention. 1 and 2, the mobile balancing device 1 according to the present invention includes a sensing unit 40, a DAQ board 30, a computer terminal 20, and a carrying case 10.

The sensing unit 40 is installed in the measurement target device to detect the vibration of the measurement target device and outputs an analog vibration detection signal in the form of an analog signal. Here, the sensing unit 40 is a vibration sensor for detecting the actual vibration for the vibration analysis of the measurement target equipment, a rotating body that causes vibration in the measurement target equipment, such as a rotor (Rotor), ball bearing (Ball bearing) ), A shaft, a roller bearing, a roller bearing, a gear, and a sliding bearing, such as a sliding bearing, may include an RPM sensor that detects the rotational speed of the rotating body.

The DAQ board 30 receives the analog vibration detection signal output from the sensing unit 40 and converts the received analog vibration detection signal into a digital vibration detection signal in the form of a digital signal.

Here, as shown in FIG. 2, the DAQ board 30 includes a plurality of channel connection units 31a and 31b connected to sensors of the sensing unit 40 to receive various sensing signals output from the sensing unit 40. And 31c) and an A / D converter 32 for converting a sense signal in the form of an analog signal into a digital signal. The A / D converter 32 performs a function of converting an analog vibration detection signal into a digital vibration detection signal.

The digital vibration detection signal converted by the DAQ board 30 is transmitted to the computer terminal 20. The DAQ board 30 and the computer terminal 20 according to the present invention are provided to communicate through USB communication. That is, as shown in FIG. 2, the DAQ board 30 includes a first USB communication unit 33 for USB communication with the computer terminal 20, and the computer terminal 20 includes the first USB communication unit 33. It includes a first USB communication unit 33 for communication with.

In this way, the DAQ board 30 and the computer terminal 20 are interconnected through USB communication, thereby enabling the use of USB communication that is commonly used for the computer terminal 20, and at the time of replacing the computer terminal 20. It is possible to reduce the limitation of the selection of the computer terminal 20.

Meanwhile, as described above, the computer terminal 20 includes a second USB communication unit 23, a vibration analysis program 21, a display unit 22, and a network unit 25 for USB communication with the DAQ board 30. And a main controller 24.

The vibration analysis program 21 analyzes the digital vibration detection signal received from the DAQ board 30 through the second USB communication. Here, the detailed description of the vibration analysis program 21 will be described later.

The display unit 22 displays an image on the screen under the control of the main controller 24, and displays various images provided by the vibration analysis program 21 on the screen. In addition, the network unit 25 communicates with the analysis server 100 to be described later, and may be connected to the analysis server 100 through wireless and wired Internet.

The carrying case 10 has an accommodation space in which the DAQ board 30 and the computer terminal 20 are accommodated. Here, the carrying case 10 may be provided in a form including the upper case 11 and the lower case 12, as shown in Figure 1, the upper case 11 and the lower case 12 One side may have a hinge structure and the upper case 11 may be provided to open and close the lower case 12.

In addition, the supporting space of the carrying case 10 supports the DAQ board 30 and the computer terminal 20 to block the movement of the DAQ board 30 and the computer terminal 20 during the movement in the carrying case 10. To support bracket 13 may be installed. In the present invention, the support bracket 13 is installed on the lower case 12 side of the carrying case 10 as an example, and the connection terminal to which the cable connected to the sensing unit 40 is connected to the support bracket 13 For example, it is prepared.

In addition, at least one region of the inner wall surface of the carrying case 10 is provided with a buffer member 14, when carrying and moving the balancing device according to the present invention, the internal components, such as the DAQ board 30 or a computer terminal (20) can be prevented from being damaged. 1 illustrates an example in which the shock absorbing member 14 is installed on the inner wall surface of the upper case 11, but between the support bracket 13 and the lower case 12 or between the support bracket 13 and the DAQ board 30. Alternatively, the shock absorbing member 14 may be installed between the computer terminals 20.

In addition, the outer surface of the carrying case 10 may be provided with a waterproof material, and when carrying the mobile balancing device 1 according to the present invention by carrying it, a climatic environment or a work environment in the field where the measurement target equipment is installed. Due to this, the penetration of water into the carrying case 10 may be prevented, thereby preventing damage to the internal configuration, for example, the DAQ board 30 or the computer terminal 20.

Hereinafter, the vibration analysis program 21 installed in the computer terminal 20 according to the present invention will be described in detail with reference to FIGS. 3 to 7.

The vibration analysis program 21 according to the present invention, as shown in FIG. 3, provides an equipment registration screen, and the equipment registration screen is displayed on the display unit 22 of the computer terminal 20. Here, information about the measurement target device is input through the device registration screen.

In FIG. 3, the company ID of the measurement target equipment, the name of the measurement target equipment, basic information of the measurement target equipment related to the size of the measurement target equipment, a rotor, a ball bearing, a shaft, and a roller bearing An example of a device registration screen provided to enable input of information on a used part installed in a measurement target device, such as a roller bearing, a gear, and a sliding bearing, is shown.

4 is a diagram illustrating an example of a measurement screen on which a time axis graph and a spectrum graph provided by the vibration analysis program 21 are displayed. Here, the digital vibration monitoring signal converted by the DAQ board 30 is displayed on the time axis graph and the spectrum graph in real time.

The time axis graph is a graph that displays the value of the digital vibration detection signal detected by the current sensing unit 40 and transmitted from the DAQ board 30 as it is. The value is based on the voltage value transmitted from the sensing unit 40. do.

In addition, the spectral graph is a graph showing a result of performing a fast fourier transform (FFT) on a digital vibration sensing signal detected by the sensing unit 40 and transmitted from the DAQ board 30, and processing a windowing function. Represented by

Here, since one screen of the spectrum graph is displayed only at a maximum 800 Hz range, it may be provided to check other frequency bands by using the left / right buttons, and the magnification may be provided to enlarge up to four. In addition, the spectral value may be enlarged or reduced so that the value is too small to be seen or may be edited so that the value of a specific region can be checked.

In addition, the vibration analysis program 21 may provide the measurement setting screen as shown in FIG. 5 so as to check basic information of the measurement target equipment currently being measured and set a type and a measurement axis of a graph that the operator wants to see. Can be.

In addition, the vibration analysis program 21 may provide a detailed measurement screen for enlarging only the spectral graph in the measurement screen illustrated in FIG. 4 to enable checking in more detail. 6 shows an example of a detailed measurement screen. Here, when the operator clicks the spectral graph portion on the screen above the measurement, a function for accurately displaying data corresponding to the frequency band at the bottom of the graph may be added to the measurement data.

In addition, the vibration analysis program 21 according to the present invention may provide a measurement result inquiry screen as shown in FIG. 7. Referring to FIG. 7, when the device is registered through the device registration screen, the used part of the measurement target device is checked as it is, and a result is output based on the checked part. Here, the RMS value for determining the overall vibration abnormality of the measurement target equipment and the RPM value measured at the vibration measurement of the measurement target equipment are displayed, and whether the pass (failed or failed) is displayed.

Hereinafter, a vibration analysis system according to the present invention will be described with reference to FIG. 8. As shown in FIG. 8, the vibration analysis system according to the present invention includes a mobile balancing device 1 and an analysis server 100.

The mobile balancing device 1 is connected to the analysis server 100 through a network such as a wired or wireless internet. Here, the configuration of the mobile balancing device 1 is as described above, and the main control unit 24 of the mobile balancing device 1 shown in FIG. 2 communicates with the analysis server 100 through the network unit 25. do.

As shown in FIG. 8, the analysis server 100 may include a network unit 105, an equipment history manager 101, a vibration analysis database 102, and a server controller 104 that controls the whole.

The network unit 105 communicates with the mobile balancing device 1 through a wired or wireless internet, and receives information on the history of the measurement target device and vibration analysis information about the measurement target device from the mobile balancing device 1. .

Here, the information on the history and the vibration analysis information transmitted from the mobile balancing device 1 is registered and measured in the manner described above by the vibration analysis program 21 installed in the computer terminal 20 of the mobile balancing device 1. It means the process of creating a piece of information.

The equipment history management unit 101 receives the information on the history received through the network unit 105 and the vibration analysis information from the server control unit 104 and stores it in the vibration analysis database 102. When the request is received from the mobile balancing device 1 through the network unit 105 and the server control unit 104, the equipment history management unit 101 stores data stored in the vibration analysis database 102, for example, a specific measurement. Information about the history of the target equipment and the previously measured and stored vibration analysis information may be transmitted to the mobile balancing device 1 through the network unit 105.

As such, the vibration analysis information measured and analyzed by the mobile balancing device 1 and the history information of the corresponding measurement object are integrated and managed in the vibration analysis database 102 of the analysis server 100, and the mobile balancing device as necessary. By retransmitting to (1), even if the mobile balancing device 1 is replaced or the operator is replaced, the existing history or vibration analysis data for the measurement target equipment can be effectively managed.

Although some embodiments of the invention have been shown and described, it will be apparent to those skilled in the art that modifications may be made to the embodiment without departing from the spirit or spirit of the invention. . The scope of the alias will be defined by the appended claims and their equivalents.

1 is a perspective view of a mobile balancing device according to the present invention,

2 is a control block diagram of a mobile balancing device according to the present invention;

3 to 7 are diagrams showing examples of screens provided by the vibration analysis program installed in the computer terminal of the mobile balancing device according to the present invention;

8 is a diagram showing the configuration of a vibration analysis system according to the present invention.

<Description of Major Numbers in Drawing>

1: mobile balancing device 10: carrying case

11: upper case 12: lower case

13 support bracket 14 buffer member

20: computer terminal 21: vibration analysis program

22: display unit 23: second USB communication unit

24: main control unit 30: DAQ board

32: A / D converter 33: the first USB communication unit

40: sensing unit 100: analysis server

101: equipment history management unit 102: vibration analysis database

104: server control unit

Claims (5)

In the mobile balancing device for vibration analysis, A sensing unit installed in a measurement target device to detect vibration of the measurement target device and output an analog vibration detection signal in the form of an analog signal; A DAQ board provided with a first USB communication unit for receiving the analog vibration detection signal output from the sensing unit, converting the digital vibration detection signal in the form of a digital signal, and outputting the digital vibration detection signal through USB communication; A second USB communication unit connected to the first USB communication unit to communicate with the DAQ board through the USB communication, and a vibration analysis program for analyzing the digital vibration detection signal received through the second USB communication unit; An installed computer terminal; An accommodating space for accommodating the DAQ board and the computer terminal is formed and includes a carrying case accommodating and installed in the accommodating space to support the DAQ board and the computer terminal. Mobile balancer. The method of claim 1, The at least one area of the inner wall surface of the carrying case is a movable balancing device, characterized in that the buffer member is installed. The method of claim 2, Mobile balancing device, characterized in that the outer surface of the carrying case is provided with a waterproof material. The method according to any one of claims 1 to 3, The vibration analysis program is a mobile balancing device, characterized in that to provide a device registration screen for registering the information on the measurement target equipment, and a measurement screen for displaying the data generated through the analysis of the digital vibration detection signal. A mobile balancing device according to claim 4; And an analysis server having information on a history of the measurement target device from the balancing device and a vibration analysis database for storing vibration analysis information about the measurement target device analyzed by the mobile balancing device through a network. Vibration analysis system.

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