KR200467190Y1 - Displacement measuring device for bore of bearing housing - Google Patents

Displacement measuring device for bore of bearing housing Download PDF

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Publication number
KR200467190Y1
KR200467190Y1 KR2020110006606U KR20110006606U KR200467190Y1 KR 200467190 Y1 KR200467190 Y1 KR 200467190Y1 KR 2020110006606 U KR2020110006606 U KR 2020110006606U KR 20110006606 U KR20110006606 U KR 20110006606U KR 200467190 Y1 KR200467190 Y1 KR 200467190Y1
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KR
South Korea
Prior art keywords
housing
bearing housing
plate
diameter
main
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Application number
KR2020110006606U
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Korean (ko)
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KR20130000696U (en
Inventor
이인환
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한전케이피에스 주식회사
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Priority to KR2020110006606U priority Critical patent/KR200467190Y1/en
Publication of KR20130000696U publication Critical patent/KR20130000696U/en
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Publication of KR200467190Y1 publication Critical patent/KR200467190Y1/en

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Abstract

The present invention relates to a device for measuring the inner diameter displacement of a bearing housing, comprising: a laser sensor having a light emitting portion and a light receiving portion located on the front surface; a main body housing having an opening so that the light emitting portion and the light receiving portion of the laser sensor are exposed on the front surface; It is coupled to each of the two sides to support the lower side of the main body housing is inserted into the inner diameter portion of the bearing housing, and includes a plate-like first and second horizontal holding plate for maintaining the body housing in a horizontal state. According to the present invention, the light emitting part and the light receiving part of the laser sensor are positioned at one end of the body housing having the same length as the radial length of the bearing housing, so that the displacement of the bearing housing can be measured by accurately measuring the distance from the center of the bearing housing to the inner diameter. It has an effect.

Description

Displacement measuring device for bore of bearing housing

The present invention relates to an inner diameter displacement measuring apparatus of a bearing housing, and more particularly, to an inner diameter displacement measuring apparatus of a bearing housing capable of accurately measuring the inner diameter of a bearing housing using a laser sensor.

In general, nuclear power plants have about 700 or more motors per unit, and the motor bearings are replaced periodically or at fault. Small and medium-sized motor bearing housings are mainly made of castings, so the processing accuracy is low. FAN motors are impacted by blowing pressure at start-up, resulting in deformation or wear of the bearing housings, resulting in loose bearings.

As such, the bearing outer ring and the inner diameter of the housing may have a tolerance of 0 to 0.03 mm. If the tolerance is large, vibration or noise occurs and the life of the bearing is shortened.

Therefore, when replacing the bearing of the motor, the internal diameter of the bearing housing is measured to determine whether it is still used.In order to measure the internal diameter of the housing, micrometers are used, and several micrometers must be used in combination with the size of the bearing housing. Because of the large deviation, the measurement should be repeated several times. In addition, there is a problem that the measurement value error occurs depending on the skill of the measurer and takes a long time.

An example of an inner diameter displacement measuring apparatus of a conventional bearing housing is Patent Application No. 10-2010-0042383 filed by the present applicant.

According to claim 1 of the present patent claims, 'the central shaft member having a first screw coupling portion in each direction from the center of the inner diameter portion of the tilting pad bearing toward the inner surface of the upper, lower, left and right pads, A length adjusting member coupled to the first screw coupling portion of the central shaft member, the length adjusting member being adjusted toward the pad according to the tightening length with the first screw coupling portion, and coupled to the length adjusting member to the inner side of the pad. The auxiliary device for measuring the inner diameter of the tilting pad bearing comprising a support member supporting the pad while being in close contact with the side surface.

However, such an inner diameter displacement measuring device of a bearing housing is a contact type inner diameter displacement measuring device in which a pad contacts an inner diameter portion of a bearing, and as described above, an error may occur depending on the skill of the measurer.

Patent Publication No. 10-2010-0042383

The problem to be solved by the present invention in view of the above problems is to provide an inner diameter displacement measuring apparatus of a bearing housing that can measure the inner diameter of the bearing in a non-contact manner.

In addition, it is easy to maintain the horizontal, and to provide an internal diameter displacement measuring device of the bearing housing that can easily find the center of the bearing housing.

The inner diameter displacement measuring apparatus of the bearing housing of the present invention for solving the above problems, the main body housing having a laser sensor positioned in front of the light emitting portion and the light receiving portion, the opening so that the light emitting portion and the light receiving portion of the laser sensor is exposed from the front surface; And plate-shaped first and second horizontal support plates coupled to both side surfaces of the main body housing to support the lower side of the main body housing inserted into the inner diameter of the bearing housing and to maintain the main body housing in a horizontal state. Include.

The inner diameter displacement measuring device of the present invention is fixed so that the light emitting part and the light receiving part of the laser sensor are positioned at one end of the body housing having the same length as the radial length of the bearing housing, thereby accurately measuring the distance from the center of the bearing housing to the inner diameter. There is an effect that can measure the displacement of the bearing housing.

In addition, the present invention can measure the displacement of the bearing housing in a non-contact manner, it is possible to measure the exact displacement irrespective of the operator's skill, there is an effect that can minimize the error.

1 is an exploded perspective view of an inner diameter displacement measuring apparatus of a bearing housing according to a preferred embodiment of the present invention.
Figure 2 is a perspective view of the coupled state of the inner diameter displacement measuring device of the bearing housing according to an embodiment of the present invention.
3 is a state diagram used in the displacement measuring apparatus of the inner diameter of the bearing housing according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the inner diameter displacement measuring apparatus of the subject innovation bearing housing will be described in detail.

1 is an exploded perspective view of the inner diameter displacement measuring apparatus of the bearing housing according to a preferred embodiment of the present invention, Figure 2 is a perspective view of the coupled state of FIG.

1 and 2, the inner diameter displacement measuring apparatus of the bearing housing according to the present invention includes a laser sensor 30 having a light emitting part 31 and a light receiving part 32 located in front, and the laser sensor 30. A main body housing 10 having an opening 12 so that the light emitting part 31 and the light receiving part 32 of the light emitting part 31 are exposed from a front surface thereof, and a horizontal state of the main body housing 10 coupled to both side surfaces of the main body housing 10, respectively. It consists of the first and second horizontal holding plates (21, 22) to maintain.

The main body housing 10 includes a front plate 11 having the opening 12 provided at a lower side thereof, and an upper plate 14 and a lower plate which are tightly fixed to upper, lower, rear and side surfaces of the laser sensor 30, respectively. 15), the back plate 16 and the side plate 13, the distance from the position of the light emitting portion 31 and the light receiving portion 32 of the laser sensor 30 to the outer surface of the back plate 16 is measured Make the same as the radius of the bearing housing to be.

This is because the present invention is not intended to measure the inner diameter of the various bearing housing, but to measure the displacement occurring in the inner diameter according to the use of the standardized bearing housing.

Hereinafter, the configuration and operation of the inner diameter displacement measuring device of the bearing housing according to the present invention configured as described above will be described in more detail.

First, the laser sensor 30 includes a light emitting unit 31 and a light receiving unit 32 on one surface, and receives the reflected light of the laser light emitted from the light emitting unit 31 at the light receiving unit 32 to measure the distance in wavelength. .

In addition, the laser sensor 30 includes a function of transmitting the measurement result via a wired or wireless.

The laser sensor 30 is fixed in the body housing 10. As described above, the main body housing 10 has its position fixed by the front plate 11, the upper plate 14, the lower plate 15, the back plate 16, and the side plate 13, and the main body housing 10. It is fixed so as not to flow in).

An opening 12 is positioned at a lower side of the front plate 11 of the main body housing 10 to expose the light emitting part 31 and the light receiving part 32 of the laser sensor 30.

The length from the front surface of the laser sensor 30 where the light emitting portion 31 and the light receiving portion 32 are positioned to the side surface of the back plate 16 is the same length as the radius of the bearing housing to be measured. It is possible to accurately position the light emitting portion 31 and the light receiving portion 32 in the bearing housing inner diameter center by closely contacting the back plate of the body housing 10 to the inner diameter of the bearing housing without having to find the inner diameter center.

First and second horizontal holding plates 21 and 22 are coupled to the outer side of the two side plates 13 of the main body housing 10, respectively.

The first and second horizontal holding plates 21 and 22 are metal plates having a bent surface that is bent by 90 degrees, and preferably have a predetermined thickness so that warpage and deformation do not occur.

The first and second horizontal holding plates 21 and 22 may be horizontally maintained while being inserted into the inner diameter portion of the bearing housing to be measured by the main body housing 10. The sum of the lengths of the horizontal holding plates 21 and 22 is larger than the inner diameter of the bearing housing to be measured.

3 is a state diagram used in the displacement measuring apparatus of the inner diameter of the bearing housing according to an embodiment of the present invention.

Referring to FIG. 3, the first and second horizontal support plates 21 and 22 are positioned so that the lower side of the main housing 10 is inserted into the inner diameter of the bearing housing 40. .

At this time, the back plate 16 of the main body housing 10 is in close contact with the inner diameter portion of the bearing housing 40, so that the light emitting portion 31 and the light receiving portion 32 is located in the center of the inner diameter as described above.

In this state, the reflected light reflected from the laser beam of the light emitting part 31 of the laser sensor 30 on the inner diameter wall surface of the bearing housing is received by the light receiving part 32 to measure the inner diameter radius of the bearing housing.

The measured radius is transmitted to the PDA (PDA) 50 and displayed as a numerical value that can be recognized by the user.

The displacement can be confirmed by comparing the measured radius with the radius of the original bearing housing, and by checking whether the displacement is greater than the tolerance range, it is determined whether to replace the bearing.

10: body housing 11: front panel
12: Opening 13: Side plate
14: top 15: bottom
16: back plate 21: the first horizontal support plate
22: second level holding plate 30: laser sensor
31: light emitting part 32: light receiving part
40: bearing housing 50: PD

Claims (4)

  1. A laser sensor in which the light emitting unit and the light receiving unit are located in front;
    An opening is provided in the lower side to expose the light emitting part and the light receiving part, and the top plate, the side plate, the bottom plate, and the back plate which are in close contact with the top, side, bottom and back surfaces of the laser sensor to prevent the flow of the laser sensor. A main body housing composed of a plate, wherein a distance from a position of the light emitting portion and the light receiving portion to an outer side of the rear plate is equal to a length of an inner diameter radius of a bearing housing; And
    First and second horizontal plates that are coupled to both side surfaces of the main body housing to support the main body housing while the lower side of the main body housing is inserted into the inner diameter of the bearing housing and maintain the main body housing in a horizontal state. Internal diameter displacement measuring device of the bearing housing including a retaining plate.
  2. delete
  3. The method of claim 1,
    Internal diameter displacement measuring apparatus of the bearing housing further comprises a PD to display the measurement results of the laser sensor.
  4. The method of claim 1,
    Each of the first and second horizontal holding plates,
    An internal diameter displacement measuring apparatus of a bearing housing, wherein the bent surface bent at 90 degrees is a metal plate coupled to two sides of the main body housing.
KR2020110006606U 2011-07-21 2011-07-21 Displacement measuring device for bore of bearing housing KR200467190Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020110006606U KR200467190Y1 (en) 2011-07-21 2011-07-21 Displacement measuring device for bore of bearing housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020110006606U KR200467190Y1 (en) 2011-07-21 2011-07-21 Displacement measuring device for bore of bearing housing

Publications (2)

Publication Number Publication Date
KR20130000696U KR20130000696U (en) 2013-01-30
KR200467190Y1 true KR200467190Y1 (en) 2013-05-31

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003148902A (en) * 2001-11-09 2003-05-21 Nsk Ltd Measuring device for bearing housing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003148902A (en) * 2001-11-09 2003-05-21 Nsk Ltd Measuring device for bearing housing

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