KR20100006843U - Portable sensing device for defection of moter - Google Patents

Abstract

The present invention relates to a motor defect detection apparatus, the portable handle is installed, the case having an inner receiving space; A power supply unit installed inside the case and converting and supplying power input from the outside; A vibration sensing unit coupled to one side of the case and measuring vibrations and noises generated by the motor in contact with the motor in operation; A range setting unit provided at one wall of the case to adjust a range of vibration and noise measured by the vibration detecting unit; A signal processor configured as a circuit on a printed circuit board installed inside the case, for processing and converting signal values of vibration and noise of the motor input from the vibration detector; A display unit installed at one side of the case and configured to visualize the signal value processed by the signal processing unit to determine a defect of the motor; A sound generator for converting the signal value processed by the signal processor into a sound to listen to the sound and determine the coupling of the motor; And a data output unit configured to output signal values processed by the signal processing unit to the outside, and detect abnormal vibrations and noises detected from the motor under inspection through the vibration detection unit, thereby allowing the user to detect whether the motor is defective or not. Has the effect of making it easy to determine.

Motor, vibration, noise, vibration detection sensor, fault,

Description

Portable Motor Fault Detection Device {PORTABLE SENSING DEVICE FOR DEFECTION OF MOTER}

The present invention relates to a motor defect detection apparatus, and more particularly, to a motor defect detection apparatus that can easily determine the defect of the motor by measuring and analyzing vibration and noise generated when the motor is driven.

As is well known, a motor is a device that converts electrical energy into mechanical energy by using a force that a current-carrying conductor receives in a magnetic field. According to the type of power, it is classified into DC motor and AC motor, and AC motor is divided into three phase exchange and single phase exchange. Today, three-phase AC motors are mainly used.

Currently, motors are manufactured and used in very different shapes and sizes according to various applications. However, the inspection of the defect of the motor due to the mass production of the motor is the most essential and the biggest factor that lowers the production speed.

Therefore, most motor manufacturers are inspecting the motor by extracting some samples rather than performing a full inspection to determine whether the motor is defective.

In the conventional method of checking whether there is a defect in the motor, as it is checked through the waveform of the current flowing through the motor, or depending on the hearing of the inspector, there may be a difference in the inspection according to the surrounding environment and the inspector. Since it is performed directly, the inspection speed is lowered, which leads to a problem of lowering the overall production speed of the motor.

An object of the present invention for solving the above problems is to provide a motor defect detection device that is easy to carry and to measure and analyze the vibration and noise generated when driving the motor to quickly and easily determine the defect of the motor. .

Motor fault detection apparatus of the present invention for achieving the above object, the portable handle is installed, the case having an inner receiving space; A power supply unit installed inside the case and converting and supplying power input from the outside; A vibration sensing unit coupled to one side of the case and measuring vibrations and noises generated by the motor in contact with the motor in operation; A range setting unit provided at one wall of the case to adjust a range of vibration and noise measured by the vibration detecting unit; A signal processor configured as a circuit on a printed circuit board installed inside the case, for processing and converting signal values of vibration and noise of the motor input from the vibration detector; A display unit installed at one side of the case and configured to visualize the signal value processed by the signal processing unit to determine a defect of the motor; A sound generator for converting the signal value processed by the signal processor into a sound to listen to the sound and determine the coupling of the motor; And a data output unit configured to output signal values processed by the signal processor to the outside.

 The vibration sensing unit may include a vibration sensing sensor, and the vibration sensing sensor may be inserted into and extended to a sensor input terminal formed on an outer surface of the case.

 The range setting unit may include a plurality of setting buttons, and the plurality of setting buttons may be provided on the front panel of the case.

 The display unit may include an analog gauge or a digital gauge indicating numerical values of vibration and noise processed by the signal processor.

 The sound generating unit may include a speaker formed on an inner side surface of the case, and an earphone output terminal.

 The data output unit may include a data output terminal formed on one side of the case.

The motor defect detection apparatus of the present invention has an effect of detecting abnormal vibrations and noises detected from a motor through a vibration detection sensor, so that a user can easily determine whether the motor is defective or a defect portion.

In addition, the motor defect device of the present invention can conveniently check the vibration and noise measurement results detected by the motor through various methods such as analog gauges, dimming lamps, speakers, and earphones according to the site conditions, and whether or not the motor is defective. It has the effect of making it possible to determine a defect site.

In addition, the motor defect device of the present invention outputs the data on the vibration and noise values detected from the motor through the data output terminal to the storage and analysis device to effect the data to determine whether the defect and the defect area according to the motor type Have

In addition, the present invention, the motor defect device stores the data of the defects and defects according to the type of motor in the signal processing unit, so that the user can easily recognize the defects and defects of the motor under inspection to make data Has an effect.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. The drawings and description are to be regarded as illustrative in nature and not restrictive. Like reference numerals designate like elements throughout the specification.

1 is a schematic diagram showing the configuration of a portable motor defect detection apparatus of the present invention.

Referring to FIG. 1, the portable motor defect detecting apparatus 1 according to the present embodiment includes a case 10, a power supply unit 20, a vibration sensing unit 30, a range setting unit 40, and a signal processing unit 50. , A display unit 60, a sound generator 70, and a data output unit 80.

Figure 2 is a perspective view showing a portable motor defect detection apparatus according to an embodiment of the present invention, Figure 3 is a plan view showing an open state of the cover of the case of the motor defect detection device of Figure 2, Figure 4 is a view 2 is a front view of the motor defect detection device.

2 to 4, the case 10 includes a main body 11 and a cover 12. The main body 11 has an internal power supply unit 20, a range setting unit 40, a signal processing unit 50, a display unit 60, a sound generator 70, and a data output unit 80. It has an accommodation space. And the cover 12 is coupled to open and close to cover the upper opening of the main body 11, the handle 13 is provided to increase the portability of the device.

The power supply unit 20 is installed on the main body 11 front plate of the case 10 and is fixed to the on / off switch 21 for determining whether to supply power, and the inner side of the main body 11 rear plate of the case 10. It comprises a transducer 22 is installed.

The transducer 22 is connected to a power source via a power cable 23 and converted to the respective used voltages necessary for measuring the motor defect of the device, thereby detecting the vibration detection unit 30, the range setting unit 40, the signal processing unit 50, Supply to the display unit 60, the sound generating unit 70 and the data output unit 80, respectively.

Vibration sensing unit 30 is in contact with one side of the motor is configured to measure the vibration and noise generated when the motor 100 is driven. In the present embodiment, the vibration detecting unit 30 includes a vibration detecting sensor 31, and the vibration detecting sensor 31 is fitted to the sensor input terminal 35 formed on the front plate of the main body 11 of the case 10. Extending through the sensor cable 32.

The range setting unit 40 is configured to adjust a range of vibration and noise of the motor 100 measured by the vibration detecting sensor 31. In the present embodiment, the range setting unit 40 is composed of a plurality of selection buttons 41 protrudingly formed on the front of the case 10, so that each measurement button can set the measurement range of each vibration and noise. do.

The signal processor 50 is configured on a printed circuit board (PCB) 51 accommodating and installed in the main body 11 of the case 10, and receives a motor input from the vibration sensor 31. The vibration and noise signal values of 100) are converted and processed.

At this time, the vibration and noise generated when the defect occurs in the motor 100 has a difference compared with the vibration and noise generated during normal operation, and the signal value is converted and processed so that the user can recognize the difference.

In addition, the signal processor 50 stores and stores the types and parts of defects that are mainly generated according to the type of the motor 100 to be inspected, and then applies them to the types of vibration and noise of the motor 100 measured at the time of performing the test. Accordingly, it may be possible to easily determine whether or not the defect of the motor (100).

The display unit 60 visualizes the signal value processed by the signal processor 50 so that a user can determine whether the motor is defective and determine a defect site.

In the present embodiment, the display unit 60 includes an analog gauge 61 installed on the front surface of the main body 11 of the case 10, and a dimming lamp 62 installed on the top surface of the cover 12 of the case 10. do.

The analog gauge 61 rotates the needle to indicate vibration and noise signal values. The dimming lamp 62 blinks or generates light in accordance with the processed signal value so that the user can recognize the motor defect state, the defect site and the operating state of the device.

Of course, instead of analog gauges, it is natural to use digital gauges that numerically display vibration and noise signal values.

The sound generator 70 generates a sound so that a user may recognize whether the motor is defective or a defective part according to the signal value processed by the signal processor 50.

In the present embodiment, the sound generator 70 may include a speaker 71, an earphone output terminal 72, a volume control dial 73, and tone tone selection buttons 74.

The speaker 71 is attached to the inside of the main body 11 front plate of the case 10, and generates a sound signal according to the signal value processed by the signal processor 50 to determine whether the user of the motor 100 being inspected is defective. Make it recognizable.

The earphone output terminal 72 is installed at one side of the speaker 71 so that the earphone 75 can be used instead of the speaker 71. When the surroundings are noisy, the user can easily determine whether the motor is defective through the earphone 75. Do it.

On the other hand, since the earphone 75 may be transmitted through the user's ears, it is preferable to use a contact type earphone that is used in contact with an area adjacent to the ear without being plugged into the ear so as not to burden the ear.

The volume control dial 73 and the tone tone selection button 74 allow the user to select and select the volume level and tone level.

In addition, the sound generator 70 is configured to automatically block the sound output to the speaker 71 when the user connects the earphone 75 to the earphone output terminal 72.

The data output unit 80 includes a data output terminal 81 for outputting the signal values processed by the signal processing unit 50 to the outside.

In this embodiment, the data output terminals 81 may be connected to a computer and a data cable so as to store vibration and noise values of the motor measured in real time.

Therefore, the motor defect prevention apparatus 1 according to the present embodiment detects abnormal vibration and noise when the motor 100 defect occurs through the vibration detection sensor 31, so that the user can easily determine the defect of the motor.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited thereto, and the present invention may be modified or modified in various ways within the scope of the utility model registration claims and the invention and the scope of the accompanying drawings. Of course, this also belongs to the scope of the present invention.

1 is a schematic diagram showing the configuration of a portable motor defect detection apparatus of the present invention.

2 is a perspective view showing a portable motor defect detection apparatus according to an embodiment of the present invention.

3 is a plan view illustrating an open state of a cover of a case of the motor defect detecting apparatus of FIG. 2.

4 is a front view of the motor defect detecting apparatus of FIG. 2.

<Description of Main Reference Signs>

10: case 11: body

12: cover 20: power supply

21: on / off switch 21: converter

22: power cable 30: vibration detection unit

31: vibration detection sensor 32: sensor cable

35: sensor input terminal 40: range setting section

41: selection button 50: signal processing unit

51: printed circuit board 60: display unit

61: digital gauge 62: dimming lamp

70: sound generator 71: speaker

72: earphone output terminal 73: volume control dial

74: tone selection button 80: data output

81: data output terminal

Claims (6)

A case having a portable handle and having an inner accommodation space; A power supply unit installed inside the case to convert and supply power input from the outside; A vibration sensing unit coupled to one side of the case and measuring vibrations and noises generated by the motor in contact with a motor in operation; A range setting unit provided at one side wall of the case to adjust a range of vibration and noise measured by the vibration detecting unit; A signal processor configured as a circuit on a printed circuit board installed inside the case, for processing and converting signal values of vibration and noise of a motor input from the vibration detector; A display unit installed at one side of the case and configured to visualize a signal value processed by the signal processor to determine a defect of the motor; A sound generator for converting the signal value processed by the signal processor into a sound to listen to the sound and determine the coupling of the motor; And And a data output unit configured to output signal values processed by the signal processor to the outside. In claim 1, The vibration detecting unit includes the vibration detecting sensor, The vibration detection sensor is a motor defect detection device is coupled to the extension is inserted into the sensor input terminal formed on the outer surface of the case. In claim 1, The range setting unit is composed of a plurality of setting buttons, The plurality of setting buttons are provided on the front plate of the case motor defect detection device. In claim 1, The display unit, Motor fault detection device comprising an analog gauge or a digital gauge representing the vibration and noise value processed through the signal processor. In claim 1, The sound generator, Motor defect detection device comprising a speaker formed on one side of the case, and the earphone output terminal. In claim 1, The data output unit includes a motor fault detection device including a data output terminal formed on one side of the case.

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