JP4969299B2 - Rotor centering measuring apparatus and rotor centering method - Google Patents

Description

  The present invention relates to a rotor centering measuring apparatus and a rotor centering method.

  When measuring the amount of displacement of the rotor, sensors for detecting displacement are attached to each of the measurement parts of the rotor, and the measurement data at each measurement part is displayed on a display device, or the measurement data is analyzed by a computer (computer). Rotor centering measurement is performed, and the obtained measurement value is used for rotor centering.

  Patent Document 1 incorporates a displacement sensor that is provided at a measurement site of a measurement object and that measures the displacement of the measurement site, and transmits measurement data by radio waves. Data transmission / reception switching means for receiving measurement data transmitted from the wireless data communication means and reading in real time, and calculation for calculating the displacement of the measured object by processing the measurement data read by the data transmission / reception switching means A wireless displacement measuring system characterized by comprising processing means is described.

  Patent Document 2 also describes a rotor centering measuring device.

JP 2002-5646 A JP-A-4-190107

  Conventionally, as described above, the measurement data transmitted from the measurement wireless data communication means has been received, and the displacement of the measured object, that is, the rotor, has been obtained by arithmetic processing by the arithmetic processing means. At the time of the rotor centering measurement, the cylinder cage was engaged with the cylinder gauge at four positions on the top, bottom, left, and right of the rotor with the measuring body, and the four points on the top, bottom, left and right were measured every 90 ° (degree) rotation of the rotor. For this reason, a total of 16 measurements of 4 points × 4 times are required. In addition, there is a displacement in the axial direction between the four surfaces of the top, bottom, left, and right, and the amount of movement in the axial direction is derived relative to the reference surface or relative to the reference surface as the rotor rotates. Measurement errors caused by the derived axial movement differences were included. Conventionally, in order to reduce this measurement error, the measurement results for four times are averaged and the average value is adopted for the rotor centering measurement.

  As described above, according to the conventional method, the measurement is performed while searching for the measurement surface where the distance between the measurement surfaces is the minimum value, and the measurement is troublesome. The measurement error due to the derivation of the difference in the amount of axial movement of the measurement surface was inevitable.

  In view of such points, the present invention eliminates the need to perform measurement while searching for a measurement surface, makes measurement simple, allows measurement to be performed in a short time, and the amount of axial movement of the measurement surface during rotor rotation. An object of the present invention is to provide a rotor centering measuring device and a rotor centering measuring method capable of eliminating the influence of derivation and thereby improving the measurement accuracy.

  In the present invention, the dial gauge is engaged with the upper, lower, left, and right of the coupling provided integrally with the rotor, and measurement data is obtained by simultaneously measuring, for example, four points every rotation of the rotor every 90 °, for example. The measurement data obtained at the reference position based on the reference position is subjected to zero correction by the arithmetic processing means, and accordingly, the same correction is applied to the measurement data obtained at other positions to move in the axial direction as the rotor rotates. Provided are a rotor centering measurement device and a rotor centering measurement method in which the influence of the amount difference is offset and measurement errors due to the axial movement amount derivation are eliminated.

Specifically, the present invention relates to a displacement measurement sensor for measuring the displacement of a measurement target portion of a rotor, and a measurement wireless data communication means for transmitting measurement data detected by the displacement measurement sensor by radio waves. In the rotor centering measuring apparatus provided with arithmetic processing means for calculating the displacement amount of the rotor by performing arithmetic processing on the measured data,
The displacement measuring sensor is engaged with a coupling that rotates integrally with the rotor formed on a side surface in a direction perpendicular to the axial direction of the rotor, and the measurement site of the coupling With respect to a predetermined angle, for example, 90 ° (hereinafter the same), multiple locations, for example, 4 locations (hereinafter the same) are arranged, and the displacement is simultaneously measured every 90 ° for the four points of the four locations,
Displacement measured every 90 ° for 4 points is measured at 4 points at a specific point that rotates every 4 ° and 90 °, and does not include the effect of axial movement difference Measured values including the effects of axial movement difference when rotated 90 °, axial movement difference when rotated 180 °, and axial movement difference when rotated 270 ° for each rotation angle as initial values Provide recording means to record as measured values,
The arithmetic processing means performs an average process on the measured values at each point using the measured values recorded in the recording means to obtain an average processed value, and calculates an average processed value using one of the points as a reference point. A rotor centering measuring apparatus that performs correction to eliminate the axial movement amount difference from the average value at each point by performing correction to zero and applying the zero correction applied to the reference point to other points. I will provide a.

  The recording means sequentially writes the initial value and the rotation angle measurement value at every 4 points 90 ° in the XY coordinates at 4 points and every 90 °, and the initial value and the measurement value at each rotation angle in accordance with the rotation angle. It is characterized by recording.

The present invention also provides a displacement measurement sensor for measuring the displacement of the measurement site of the rotor, a measurement wireless data communication means for transmitting measurement data detected by the displacement measurement sensor by radio waves, and the transmitted measurement data. In the rotor centering measuring apparatus provided with arithmetic processing means for calculating the displacement amount of the rotor by arithmetic processing,
The displacement measuring sensor engages a coupling that rotates integrally with the rotor formed on a side surface perpendicular to the axial direction of the rotor, and the measurement site of the coupling Disposed at four positions at intervals of 90 °, the four points at the four locations are simultaneously measured for displacement every 90 °, and the displacement measured at every 90 ° for the four points is measured at four points and 90 °. The four-point measurement values measured at a specific rotating point each time, which do not include the influence of the difference in the amount of axial movement, the initial value, and the difference in the amount of axial movement when rotated 90 °, 180 ° A screen display means for displaying the measurement values including the influence of the difference in the axial movement amount when rotated and the difference in the axial movement amount when rotated 270 ° as a measurement value for each rotation angle is provided. On the screen display, the arithmetic processing means Using the measurement values recorded in the recording means, average processing is performed on the measurement values at each point to obtain an average processing value, and correction is performed to set the average processing value to 0 using one of the points as a reference point. A rotor centering measuring apparatus that also displays a result of applying a zero correction applied to a reference point to other points and erasing a difference in axial movement from an average value at each point. I will provide a.

  The screen display means sequentially writes the initial value and the rotation angle measurement value at the four points 90 ° into the XY coordinates at the four points and 90 °, respectively, according to the rotation angle. It is characterized by being displayed on the screen.

The present invention also provides a displacement measurement sensor for measuring the displacement of the measurement site of the rotor, a measurement wireless data communication means for transmitting measurement data detected by the displacement measurement sensor by radio waves, and the transmitted measurement data. In the rotor centering measurement method by the rotor centering measurement device provided with calculation processing means for calculating and calculating the displacement amount of the rotor,
The displacement measuring sensor engages a coupling that rotates integrally with the rotor formed on a side surface perpendicular to the axial direction of the rotor, and the measurement site of the coupling 4 positions are arranged at intervals of 90 ° with respect to the four points, and the displacement is measured simultaneously every 90 ° for the four points.
Displacement measured every 90 ° for 4 points is measured at 4 points at a specific point that rotates every 4 ° and 90 °, and does not include the effect of axial movement difference Measured values including the effects of axial movement difference when rotated 90 °, axial movement difference when rotated 180 °, and axial movement difference when rotated 270 ° for each rotation angle as initial values Record it as a measured value in the recording means,
The arithmetic processing means performs an average process on the measured values at each point using the measured values recorded in the recording means to obtain an average processed value, and determines the average processed value using one of the points as a reference point. A rotor centering measurement method characterized by performing a correction to zero, applying a zero correction applied to the reference point to other points, and performing an operation to eliminate the axial movement amount difference from the average value at each point I will provide a.

  The initial value and the measured value for each rotation angle are sequentially written in the recording means in accordance with the rotation angle at the four points and 90 ° for the initial value and the rotation angle measured value for the four points and 90 ° for each XY coordinate. It is characterized by recording.

The present invention also provides a displacement measurement sensor for measuring the displacement of the measurement site of the rotor, a measurement wireless data communication means for transmitting measurement data detected by the displacement measurement sensor by radio waves, and the transmitted measurement data. In the rotor centering measurement method by the rotor centering measurement device provided with calculation processing means for calculating and calculating the displacement amount of the rotor,
The displacement measuring sensor engages a coupling that rotates integrally with the rotor formed on a side surface perpendicular to the axial direction of the rotor, and the measurement site of the coupling Disposed at four positions at intervals of 90 °, the four points at the four locations are simultaneously measured for displacement every 90 °, and the displacement measured at every 90 ° for the four points is measured at four points and 90 °. The four-point measurement values measured at a specific rotating point each time, which do not include the influence of the difference in the amount of axial movement, the initial value, and the difference in the amount of axial movement when rotated 90 °, 180 ° The measured values including the effect of the difference in axial movement when rotated and the difference in axial movement when rotated 270 ° are respectively displayed on the screen display means as measured values for each rotation angle.
The arithmetic processing means performs an average process on the measured values at each point using the measured values recorded in the recording means to obtain an average processed value, and determines the average processed value using one of the points as a reference point. Correction to zero is performed, and the result of calculation for deleting the axial movement amount difference from the average value at each point by applying the zero correction applied to the reference point to other points is displayed on the screen display. A rotor centering measurement method is provided.

  The initial value and the rotation angle measurement value for each of the four points 90 ° are displayed on the screen in a format in which the initial value and the measurement value for each rotation angle are sequentially written according to the rotation angle on the XY coordinates for each of the four points and 90 °. Features.

  By using the rotor centering measuring device or the rotor centering method described above, according to the present invention, it is not necessary to perform the measurement while searching for the measurement surface, the measurement is simple, the measurement can be performed in a short time, and The influence of the derivation of the amount of axial movement of the measurement surface when the rotor is rotated can be eliminated, and the measurement accuracy can be improved similarly.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing functions of a rotor centering measuring apparatus according to an embodiment of the present invention, FIG. 2 is a diagram showing the arrangement of displacement measuring sensors, and FIG. 3 is a diagram for explaining a phenomenon in which a surface gap is generated.

In FIG. 1, a rotor centering measuring apparatus 100 includes a multi-point simultaneous measuring apparatus processing unit 1,
A PC (personal computer) side processing unit 2 and a displacement measuring sensor 3 are provided.

  Before the configuration shown in FIG. 1 is described, the arrangement of the displacement measuring sensor 3 shown in FIG. 1 will be described with reference to FIG.

  In FIG. 2, the displacement measuring sensor 3 is configured with an output function, that is, a dial gauge with a wireless transmission function (hereinafter referred to as a dial gauge). In this embodiment, four dial gauges 3A, 3B, 3C, and 3D are arranged at multiple places for simultaneous measurement at multiple points. Although measurement may be performed, four dial gauges are optimal, and an example in which the following four dial gauges are arranged will be described. Therefore, when it is described as four dial gauges, it means at least four dial gauges. In addition, when 90 °, 180 °, and 270 ° are described in the present embodiment, they are substantially 90 °, 180 °, and 270 °, and the same applies when “0” is set.

In FIG. 2, the rotor 4, which is a rotating body, is provided with a shaft 6 in the axial direction, and a disc-shaped coupling 5 is attached to the shaft 6. On the left side, a plate 7 having a smooth surface is attached with the same diameter as the coupling 5. The other coupling 8 facing the coupling 7 and arranged in parallel in the vertical direction is supported and fixed to the shaft 9. The other coupling 8 is provided with through holes 14 in the upper, lower, left and right portions in the axial direction, and a measuring rod (rod) 10 that is part of the dial gauge 3 so as to penetrate each through hole 14. One end of the measuring rod 10 is connected to the dial gauge body, and the other end contacts or engages with the front surface of the plate 7.

  A support device 11 that supports the dial gauge 3 is provided on the front surface of the other coupling 8 so as to correspond to each dial gauge 3. Accordingly, the dial gauges 3A, 3C, 3D, and 3B are fixed at four positions on the top, bottom, left, and right so as to face the rotor 4 in the axial direction and engage with the front surface of the plate 7. , 3C, 3D, 3B can detect displacement amounts at four points on the front surface of the plate 7. What is important here is that the dial gauge 3 is arranged in the axial direction of the rotor 4 so as to measure the amount of displacement at four points on the front surface of the plate 7. In this example, the amount of displacement is measured at four fixed points on the top, bottom, left, and right, but the measurement surface is displaced in the axial direction with respect to the other points, and as the rotor rotates This displacement amount is output to the dial gauge 3 as a displacement amount at each point. Therefore, when the displacement amount is measured by the dial gauge 3, the difference between the displacement amount due to the eccentricity of the rotor and the displacement amount in the rotational direction between the measurement surfaces due to the rotation, that is, the displacement amount due to the difference in the axial movement amount due to the rotation is dialed. Output to gauge 3. FIG. 3 shows a phenomenon in which this difference in axial movement occurs. As shown in FIG. 3, even if the coupling as the flange configuration is set in the vertical direction, a surface gap is generated with respect to the axial direction of the rotor, and the influence of the axial movement difference between the measured parts is caused by the rotation. Will occur in the measured value. Here, as described above, the vertical direction is used to mean a substantially vertical direction. For example, for the dial gauge 3A, the measured value measured at the point PB was rotated by 90 ° as a predetermined rotational angle even when the axial movement amount was 0 at the point PA at the rotational angle of 0 °. By being in the position, the influence of the amount of displacement in the rotational direction between the measurement surfaces between the point PA and the point PB is output to the dial gauge 3B. The same applies to the point PC and the point PD. When the rotor 4 rotates 90 °, the position corresponding to PA on the plate 7 shifts to PB. Therefore, the amount of movement in the rotational direction is 0 depending on the dial gauge 3B. In this way, the influence of the difference in the amount of movement in the determined rotational direction is output for each point with the point serving as the reference point as the center.

In this example, the initial value is a measurement value that does not include the influence of the difference in axial movement at an angle of 0 °, the axial movement difference when rotated by 90 °, and the axial movement amount when rotated by 180 °. difference,
Measurement values including the influence of the difference in the amount of axial movement when rotated by 270 ° are defined and used as rotation angle measurement values. Therefore, in the rotation angle measurement value, the displacement amount caused by the actual rotor eccentricity is overlapped with the displacement amount due to the difference in the rotational direction movement amount from the specific point having an angle of 0 °, and the value appears. . Measured values at each dial gauge 3, that is, rotation angle measurement values (including rotation angle 0 °) are measured at the same time using a wireless data communication means for measurement transmitted by radio waves attached to the dial gauge 3. The data is taken in via the wireless data communication means provided with the antenna 13 in the device 12.

  3A is a dial gauge attached to the upper point, 3B is a dial gauge attached to the right point, 3C is a dial gauge attached to the lower point, and 3D is a dial gauge attached to the left point. Each dial gauge 3 may be engaged with the front surface of the coupling 5 without providing the plate 7. These dial gauges 3 measure the amount of displacement at the same time four times when the specific point has a rotation angle of 0 °, 90 °, 180 ° and 270 °. As described above, the measurement points can be multipoint.

  Returning to FIG. 1, the rotor centering measurement apparatus 100 includes a multipoint simultaneous measurement processing unit 1, and the multipoint simultaneous measurement processing unit 1 includes various processing control programs 21, a measurement data calculation processing unit 22, a communication process. The unit 23, the input / output processing unit 24, the output processing unit 25, and the storage processing unit 26 are operated to perform a data display 27 and an arithmetic processing result display 28. The input / output processing unit 24 is operated by the measurement switch 29, and the measurement data calculation processing unit 22 is used for each measurement value of the dial gauge (displacement measurement sensor) 3 input via the communication processing unit 23 using the processing control program 21. Performs each process and displays the output value as an arithmetic processing result display 28, which is printed by the printer 30 by the output processing unit 25. The measurement data is displayed as data and stored in the storage means of the storage process 26 based on the calculation result generated by the measurement data calculation processing unit 22. The data stored in the storage means of the storage processing unit 26 is stored in the external memory (USB) 31 for data expansion on the PC, and is input to the PC side processing unit 2.

The PC-side processing unit 2 includes various processing programs 41, and the data acquisition / storage processing unit 42, the measured value / design value comparison calculation processing unit 43, the design value input setting processing unit 44, and the calculation processing unit 45 are processed by the processing program 41. , The calculation result storage processing unit 46 is operated, the calculation processing result display 47 and the form creation printing process 48 are performed, and the data is transmitted to the printer 49.

  The displacement measuring sensor, that is, the dial gauge 3 is engaged with a plate 7 that rotates integrally with the rotor formed on a side surface in a direction perpendicular to the axial direction of the rotor. On the other hand, four positions are provided at intervals of 90 °, and the displacement is measured simultaneously every 90 ° for the four four points, and the measurement data is transmitted in response to a data request from the communication processing unit 23.

  The multipoint simultaneous measuring device processing unit 1 is a four-point measurement value measured at a specific point rotating at every four points and every 90 °, and measured at four points and every 90 °. The initial value is a value that does not include the influence of the movement amount difference. The difference in the axial movement amount when rotated by 90 °, the axial movement amount difference when rotated by 180 °, and the axial movement amount difference when rotated by 270 ° The measured values including the influence are formed as measured values for each rotation angle, described in the recording means, and displayed on the screen display means.

  The arithmetic processing unit 45, which is an arithmetic processing means, performs an average process on the measured values at each point using the measured values recorded in the recording means to obtain an average processed value, and uses one of the points as a reference point. Correction is performed to make the average processing value 0, and 0 correction applied to the reference point is also applied to each other point to perform an operation for eliminating the axial movement amount difference from the average value at each point. A calculation result obtained by deleting the correction 0 processing status and the axial movement difference is displayed on the screen display means together with the measured value for each rotation angle. This will be described in detail below.

FIG. 4 shows a method for measuring four points on the coupling by the dial gauge 3 and a method for organizing the measured data.
The dial gauges 3A, 3B, 3C, 3D are set for the rotor 4 by the method shown in FIG. Here, the set dial gauges 3A, 3B, 3C, and 3D are denoted by A, B, C, and D, respectively.
Rotate the rotor 4 and simultaneously acquire measurement data for A, B, C, and D at a 90 ° pitch.
XY coordinates are created for the four dial gauges A, B, C, and D, the upper point T, the right point R, the lower point B, and the left point L.
The influence of the difference in axial movement when rotated 90 ° is δ1, 180 ° is δ2, and 270 ° is δ3.
The measured values for each rotation angle measured for the dial gauges A, B, C, and D are sequentially written for the items T, R, B, and L.
FIG. 5 shows a writing method for each item of the XY coordinates.

  (1) The initial value is displayed at the position (item) indicated by 1T, 2R, 3B, 4L of the XY coordinates.

  (2) The measurement data obtained when the coupling is rotated by 90 °, that is, the rotation angle measurement values are displayed at the positions indicated by 1T, 2R, 3B, and 4L.

  (3) The rotation angle measurement value obtained when the coupling is further rotated by 90 ° is displayed at the positions indicated by 1B, 2L, 3T, and 4R.

(4) Further, the rotation angle measurement value obtained when the coupling is rotated by 90 ° is displayed at the positions indicated by 1L, 2T, 3R, and 4B.
If the readings are arranged as described above, the data table shown in FIG. 5 is created.
-In (5) of FIG. 5, the average value of each of the items T, R, B, and L is calculated.

avT = (d1T + d2T + d3T + d4T) / 4
avR = (d1R + d2R + d3R + d4R) / 4
avB = (d1B + d2B + d3B + d4B) / 4
avL = (d1L + d2L + d3L + d4L) / 4
In FIG. 4, the values of items T, R, B, and L are as follows.

T: (At + Bt + Ct + Dt + δ1 + δ2 + δ3) / 4
R: (Ar + Br + Cr + Dr + δ1 + δ2 + δ3) / 4
B: (Ab + Bb + Cb + Db + δ1 + δ2 + δ3) / 4
L: (Al + Bl + Cl + Dl + δ1 + δ2 + δ3) / 4
In FIG. 5 (6), the correction value is calculated with the T position as the reference “0”.

(T) = 0
(R) = avR−avT
(B) = avB−avT
(L) = avL-avT
FIG. 4 shows a calculation formula when correction is made based on the T position.

T: 0
R: (Ar + Br + Cr + Dr + δ1 + δ2 + δ3) / 4- (At + Bt + Ct
+ Dt + δ1 + δ2 + δ3) / 4
B: (Ab + Bb + Cb + Db + δ1 + δ2 + δ3) / 4- (At + Bt + Ct
+ Dt + δ1 + δ2 + δ3) / 4
L: (Al + Bl + Cl + Dl + δ1 + δ2 + δ3) / 4− (At + Bt + Ct
+ Dt + δ1 + δ2 + δ3) / 4
Organizing the above formula gives the following formula.

T: 0
R: (Ar + Br + Cr + Dr-At-Bt-Ct-Dt) / 4
B: (Ab + Bb + Cb + Db-At-Bt-Ct-Dt) / 4
L: (Al + Bl + Cl + Dl-At-Bt-Ct-Dt) / 4
-It is possible to erase δ1, δ2, and δ3 by performing T position reference correction.

  Therefore, as shown in the data table of FIG. 4, the value of the measurement surface after the average of four locations is calculated as in the last stage, and the influence of the difference in the amount of rotational movement accompanying rotation is eliminated from this value.

  FIG. 6 shows a coupling surface state calculation block diagram based on four-point displacement measurement. As described above, measurement and display at the initial state, 90 ° rotation, 180 ° rotation, and 270 ° rotation, average processing, and T position reference correction are shown. Each step is described in detail in FIG.

  7 and 8 show the measurement method.

  FIG. 9 shows a centering measurement processing flow.

  A measurement screen is displayed (S1), and it is determined whether or not four points on the surface are measured simultaneously. In the case of measurement, measurement and display on a predetermined item are performed according to steps S4 to S19, and the surface data average value and T reference calculation display are performed (S20).

  Data display is performed (S39), and adjustment procedure is displayed (S40). Data display is performed by the same data display (S41) and surface data display (S42), and adjustment procedure display is performed by corrected target deviation calculation (S43), adjustment amount calculation (S44) and corrected expected value display (S45).

Through the above steps, the measurement site of the coupling 5 is engaged with the plate 7 that rotates integrally with the rotor 4 formed on the side surface perpendicular to the axial direction of the rotor 4 by the displacement measurement sensor, and the coupling is performed. Measuring four displacements at 90 ° intervals with respect to five measurement sites at four intervals, and simultaneously measuring the four points of the four locations every 90 °;
Displacement measured every 90 ° for 4 points is measured at 4 points at a specific point that rotates every 4 ° and 90 °, and does not include the effect of axial movement difference Measured values including the effects of axial movement difference when rotated 90 °, axial movement difference when rotated 180 °, and axial movement difference when rotated 270 ° for each rotation angle as initial values Recording in the recording means as measured values,
The arithmetic processing means performs average processing on the measured values at each point using the measured values recorded in the recording means to obtain an average processed value, and sets the average processed value to 0 using one of the points as a reference point. A rotor centering measurement method is provided which includes a step of performing a calculation to eliminate an axial movement amount difference from an average value at each point by applying a zero correction applied to the reference point to other points by performing a correction to be performed. Is done.

  In this case, the initial value and the rotation angle measurement value at four points every 90 ° are sequentially written in the recording means according to the rotation angle, and the initial value and the measurement value at each rotation angle are sequentially written in the XY coordinates at every four points and 90 °. Can be recorded in format.

Further, the measurement site is engaged with the coupling 5 that rotates integrally with the rotor 4 formed on the side surface in the direction perpendicular to the axial direction of the rotor 4 by the displacement measurement sensor, and the measurement site of the coupling 5 The four positions are arranged at 90 ° intervals, the displacement is measured simultaneously every 90 ° for the four points of the four points, and the displacement measured every 90 ° is measured for the four points. Four-point measurement values measured at specific points that rotate at every °, and the initial value is a value that does not include the influence of the difference in axial movement amount, and the difference in axial movement amount when rotated by 90 °, 180 A step of displaying on the screen display means each measurement value including the influence of the difference in the axial movement amount when rotated by 270 °, and the measured value for each rotation angle, including the influence of the difference in axial movement amount when rotating by 270 °
The arithmetic processing means performs average processing on the measured values at each point using the measured values recorded in the recording means to obtain an average processed value, and sets the average processed value to 0 using one of the points as a reference point. From the step of displaying on the screen display the result of performing the calculation to erase the axial movement amount difference from the average value at each point by applying the zero correction applied to the reference point to the other points. A configured rotor centering measurement method is provided.

The block diagram which shows the structure of the rotor centering measuring device which is an Example of this invention. The figure which shows the arrangement | positioning state of a dial gauge. The figure explaining that a surface gap generate | occur | produces by rotation and an axial direction movement amount difference arises in connection with this. The figure which shows the measuring method by a 4-point dial gauge, the display method, and the arithmetic processing method, and shows various data. The figure which shows the measurement step and arithmetic processing step by a 4-point dial gauge. Coupling surface state calculation block diagram with a four-point dial gauge. The figure which shows a measurement step (the 1) on a screen. The figure which shows a measurement step (the 2) on a screen. The centering measurement process flowchart figure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Multi-point simultaneous measurement processing part 2 PC side processing part 3, 3A, 3B, 3C, 3D Dial gauge 4 Rotor 5 Coupling 6, 9 Axis 7 Plate 8 The other coupling 10 Measuring rod 11 Support apparatus 12 Multi-point simultaneous measurement Device 21 Processing control program 22 Measurement data calculation processing unit 23 Communication processing unit 26 Storage processing unit 41 Processing program 45 Calculation processing unit 46 Calculation result storage processing unit 47 Calculation processing result display

Claims (8)

A displacement measurement sensor for measuring the displacement of the measurement site of the rotor, a measurement wireless data communication means for transmitting measurement data detected by the displacement measurement sensor by radio waves, and processing the transmitted measurement data for calculation In the rotor centering measuring apparatus provided with arithmetic processing means for obtaining the displacement amount of the rotor,
The displacement measuring sensor is engaged with a coupling that rotates integrally with the rotor formed on a side surface in a direction perpendicular to the axial direction of the rotor, and the measurement site of the coupling A predetermined multi-position is provided at intervals of a predetermined angle with respect to each of the predetermined multi-points, and the displacement is simultaneously measured for each predetermined angle,
Displacement measured at a predetermined angle for multiple points is a multi-point measurement value measured at a specific point that rotates at multiple points and a predetermined angle, and does not include the effect of axial movement difference Influence of difference in axial movement when rotated by the first predetermined angle, difference in axial movement when rotated by the second predetermined angle, and difference in axial movement when rotated by the third predetermined angle The recording means for recording the measured value including each as the measured value for each rotation angle,
The arithmetic processing means performs an average process on the measured values at each point using the measured values recorded in the recording means to obtain an average processed value, and calculates an average processed value using one of the points as a reference point. A rotor centering measuring apparatus that performs correction to eliminate the axial movement amount difference from the average value at each point by performing correction to zero and applying the zero correction applied to the reference point to other points. .   2. The recording means according to claim 1, wherein the recording unit sets the initial value and the rotation angle measurement value for each multipoint predetermined angle to the XY coordinates for the multipoint and the predetermined angle, and the initial value and the rotation angle measurement value to the rotation angle. The rotor centering measuring apparatus is characterized in that recording is performed in a sequential writing format according to the above. A displacement measurement sensor for measuring the displacement of the measurement site of the rotor, a measurement wireless data communication means for transmitting measurement data detected by the displacement measurement sensor by radio waves, and processing the transmitted measurement data for calculation In the rotor centering measuring apparatus provided with arithmetic processing means for obtaining the displacement amount of the rotor,
The displacement measuring sensor engages a coupling that rotates integrally with the rotor formed on a side surface perpendicular to the axial direction of the rotor, and the measurement site of the coupling A predetermined multi-point location is provided at predetermined angular intervals with respect to the predetermined multi-point multi-point, and the displacement is simultaneously measured for each predetermined angle,
Displacement measured at a predetermined angle for multiple points is a multi-point measurement value measured at a specific point that rotates at multiple points and a predetermined angle, and does not include the effect of axial movement difference Influence of difference in axial movement when rotated by the first predetermined angle, difference in axial movement when rotated by the second predetermined angle, and difference in axial movement when rotated by the third predetermined angle Screen display means for displaying each measurement value as a measurement value for each rotation angle. The screen display means uses the measurement value recorded in the recording means by the arithmetic processing means for the screen display. Average processing is performed on the measured values at each point to obtain an average processing value, correction is performed by setting the average processing value to 0 using one of the points as a reference point, and 0 correction applied to the reference point is applied to each of the other points. Apply to points, and move in the axial direction from the average value at each point Rotor centering measuring device, characterized in that it also displays the results of the operation to erase.   4. The screen display unit according to claim 3, wherein the screen display means rotates the initial value and the rotation angle measurement value at each multipoint predetermined angle to the XY coordinates for the multipoint and the predetermined angle, respectively. A rotor centering measuring apparatus, characterized in that the screen is displayed in a form of sequentially writing according to an angle. A displacement measurement sensor for measuring the displacement of the measurement site of the rotor, a measurement wireless data communication means for transmitting measurement data detected by the displacement measurement sensor by radio waves, and processing the transmitted measurement data for calculation In the rotor centering measurement method by the rotor centering measurement device provided with the arithmetic processing means for obtaining the displacement amount of the rotor,
The displacement measuring sensor engages a coupling that rotates integrally with the rotor formed on a side surface perpendicular to the axial direction of the rotor, and the measurement site of the coupling A plurality of predetermined positions are arranged at predetermined angle intervals with respect to the predetermined multi-points, and the displacement is simultaneously measured for each predetermined angle at a predetermined angle.
Displacement measured at a predetermined angle for multiple points is a multi-point measurement value measured at a specific point that rotates at multiple points and a predetermined angle, and does not include the effect of axial movement difference Influence of difference in axial movement when rotated by the first predetermined angle, difference in axial movement when rotated by the second predetermined angle, and difference in axial movement when rotated by the third predetermined angle Are recorded in the recording means as measured values for each rotation angle,
The arithmetic processing means performs an average process on the measured values at each point using the measured values recorded in the recording means to obtain an average processed value, and determines the average processed value using one of the points as a reference point. A rotor centering measurement method characterized by performing a correction to zero, applying a zero correction applied to the reference point to other points, and performing an operation to eliminate the axial movement amount difference from the average value at each point .   6. The recording device according to claim 5, wherein the initial value and the rotation angle measurement value for each of the multipoint predetermined angles are stored in the recording means, and the initial value and the rotation angle measurement value for the multipoint and the predetermined angle are set to the rotation angle. According to the method, the rotor centering measurement method is characterized in that recording is performed in a sequential writing format. A displacement measurement sensor for measuring the displacement of the measurement site of the rotor, a measurement wireless data communication means for transmitting measurement data detected by the displacement measurement sensor by radio waves, and processing the transmitted measurement data for calculation In the rotor centering measurement method by the rotor centering measurement device provided with the arithmetic processing means for obtaining the displacement amount of the rotor,
The displacement measuring sensor engages a coupling that rotates integrally with the rotor formed on a side surface perpendicular to the axial direction of the rotor, and the measurement site of the coupling A plurality of predetermined positions are arranged at predetermined angle intervals with respect to the predetermined multi-points, and the displacement is simultaneously measured for each predetermined angle at a predetermined angle.
Displacement measured at a predetermined angle for multiple points is a multi-point measurement value measured at a specific point that rotates at multiple points and a predetermined angle, and does not include the effect of axial movement difference Influence of difference in axial movement when rotated by the first predetermined angle, difference in axial movement when rotated by the second predetermined angle, and difference in axial movement when rotated by the third predetermined angle Display the measured value including each on the screen display means as the measured value for each rotation angle,
The arithmetic processing means performs an average process on the measured values at each point using the measured values recorded in the recording means to obtain an average processed value, and determines the average processed value using one of the points as a reference point. Correction to zero is performed, and the result of calculation for deleting the axial movement amount difference from the average value at each point by applying the zero correction applied to the reference point to other points is displayed on the screen display. And a rotor centering measuring method.   8. The format according to claim 7, wherein the initial value and the rotation angle measurement value for each of the multipoint predetermined angles are sequentially written in the XY coordinates for the multipoint and the predetermined angle in accordance with the rotation angle. A rotor centering measurement method characterized by displaying on a screen.

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