JP4890389B2 - Centering adjustment support device - Google Patents

Description

  The present invention relates to a centering adjustment support device, and in particular, a centering adjustment support device that measures a displacement between a rotation shaft of an adjustment-side rotating device and a rotation shaft of a fixed-side rotation device using a displacement sensor and calculates a correction amount. It is about.

  As a conventional centering adjustment support device, for example, there is a two-axis centering measurement device that calculates an eccentric amount and an eccentric angle using two non-contact distance meters and displays a necessary adjustment amount (for example, a patent) Reference 1). Such a conventional centering adjustment support device calculates and displays the adjustment amount from the measurement value obtained from the displacement meter, and the operator performs the centering operation based on the adjustment amount.

In the actual centering operation, the adjustment-side rotating device, for example, a motor, is fixed to the pedestal with a bolt and the amount of deviation is measured. Or move horizontally. Then, the adjustment-side rotating device is again fixed with bolts and the amount of deviation is measured several times. When the amount of deviation falls within the allowable value, the adjustment is completed and finally tightening is performed.
Japanese Utility Model Publication No. 63-27816

  However, there are cases where the motor on the pedestal is supposed to be supported evenly at 4 points and is supported at 3 points, which may be distorted by additional tightening and further shift may occur. Accordingly, there is a problem that the position of the adjustment-side rotating device needs to be readjusted.

  The present invention has been made to solve such a conventional problem, and adds an influence value obtained by additional tightening obtained from a past adjustment history to a correction amount calculated from a measured value as a correction amount, thereby performing additional tightening. It is an object of the present invention to provide a centering adjustment support device capable of instructing an accurate adjustment amount that does not cause subsequent readjustment.

The present invention is a centering adjustment support device for centering a rotating shaft of a fixed-side rotating device and a rotating shaft of an adjusting-side rotating device having a fixed portion by bolts on at least four pedestals. , A displacement sensor that measures the displacement between the rotating shaft of the adjustment-side rotating device and the rotating shaft of the fixed-side rotating device, and the adjustment before fixing with the bolt of the adjusting-side rotating device on the pedestal based on the output from the displacement sensor Calculate the amount of deviation between the rotating shaft of the side rotating device and the rotating shaft of the fixed side rotating device, and adjust the rotating shaft of the adjusting side rotating device and the fixed side rotating device after fixing with the bolt of the adjusting side rotating device on the base. Calculate the amount of deviation from the rotation axis, calculate the amount of correction from the amount of deviation before fixing and the amount of deviation after fixing, and adjust the rotation on the adjustment side before fixing based on the amount of correction in the centering adjustment process at the next reinstallation. without equipment rotation axis and the rotation axis of the stationary rotating device The amount by correcting the, and an information processing unit for calculating an adjustment amount of the position of the adjustment side rotating equipment from the deviation amount between the rotation axis of the corrected fixed to the rotation axis of the front of the adjustment side rotating device fixed side rotating equipment, the It is characterized by having.

  According to the centering adjustment support device of the present invention, the difference between the deviation after adjustment calculated from the measurement result and the adjustment amount and the deviation obtained from the actual measurement result is used as an adjustment amount for the next centering operation. Since it is added to the instruction, even if distortion caused by three-point support due to subtle accuracy deviation of the pedestal or equipment occurs, it is possible to indicate the adjustment amount in anticipation of the influence of the distortion in advance. It is possible to keep the deviation after tightening within an allowable value, and the number of cases that require readjustment can be reduced, thereby making it possible to improve work efficiency.

  Hereinafter, a centering adjustment support apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating a state in which the centering adjustment support device according to the present embodiment is attached to an actual fixed-side rotating device and an adjusting-side rotating device.

  First, the fixed-side rotating device 11 and the adjusting-side rotating device 12 that are targets of the centering operation will be briefly described.

  The fixed side rotating device 11 is a rotating device such as a pump, for example, and is fixedly installed in a predetermined facility. The fixed-side rotating device 11 has a fixed-side rotating device flange 13 serving as a connection part with other devices. The fixed-side rotating device 11 has an axis center 11c that serves as a reference for centering adjustment when connected to other devices.

  The adjustment-side rotating device 12 is, for example, a rotating device such as a motor, and is a device that is replaced or re-installed after inspection at a predetermined cycle. The adjustment-side rotating device 12 has an adjustment-side rotating device flange 14 that serves as a connection portion with other devices. The adjustment-side rotating device 12 has an axis center 12c that serves as a reference for centering adjustment when connected to other devices. The adjustment-side rotating device 12 includes a front base 12a and a rear base 12b, and is fixed on the base 15 via the front base 12a and the rear base 12b. Although not shown, the front base 12a has two bolt mounting portions and the rear base 12b has two bolt mounting portions, and the adjustment-side rotating device 12 is fixed on the base 15 by bolting from four locations. Will be.

  The centering operation is an operation of adjusting the position and angle of the adjustment-side rotating device 12 so that the axis center 11c of the fixed-side rotating device 11 and the axis center 12c of the adjusting-side rotating device 12 coincide.

  The centering adjustment support apparatus 100 of this embodiment includes an A / D converter 103, an information processing unit 104, a display unit 105, a displacement meter D101, and a displacement meter A102.

  The displacement meter D101 and the displacement meter A102 in this embodiment use eddy current type non-contact displacement sensors. The displacement sensor is not limited to the eddy current type, and for example, a laser light displacement sensor, a capacitance displacement sensor, an ultrasonic displacement sensor, or a contact type sensor may be used. However, it is preferable to use an eddy current displacement sensor from the viewpoint of the size, resolution, and cost of the sensor.

  Displacement meter D101 and displacement meter A102 are fixed by L-shaped block 36 so as to face each other at right angles. The L-shaped block 36 is fixed to the tip of the magnet stand 35. As shown in FIG. 1, the magnet stand 35 is fixed on the outer peripheral surface 14 b of the adjustment-side rotating device flange 14. The magnet stand 35 may be fixed to the end surface 14c of the adjustment-side rotating device flange 14 on the adjustment-side rotating device 12 side. The displacement meter D101 is fixed by the L-shaped block 36 with a predetermined distance from the outer peripheral surface 13b of the fixed-side rotating device flange 13, and the displacement meter A102 is fixed to the side surface 13a of the fixed-side rotating device flange 13. And fixed at a predetermined interval.

  FIG. 2 is a block diagram showing a detailed configuration of the centering adjustment support apparatus of the present embodiment. As described above, the centering adjustment support apparatus 100 according to this embodiment includes the A / D converter 103, the information processing unit 104, the display unit 105, the displacement meter D101, and the displacement meter A102.

  In addition, the information processing unit 104 according to the present embodiment has an arithmetic circuit (CPU or the like) not shown and a storage circuit (RAM or ROM or the like) not shown, executes a program stored in the storage circuit, By performing the operations described in the flowcharts 3 to 5, 7, and 8, the central processing unit 107, the A / D conversion interface 108, and the operation input interface 109 are stored as shown in the block diagram of FIG. 2. It functions as a device including the unit 110, the external storage unit 111, and the display unit interface 112.

  The displacement meter D101 and the displacement meter A102 are connected to the A / D converter 103 in accordance with the distance from the outer peripheral surface 13b of the fixed side rotating device flange 13 and the distance from the side surface 13a of the fixed side rotating device flange 13. Output analog signals.

  The A / D converter 103 is connected to the A / D conversion interface 108, converts the analog signal into a digital signal, and outputs the digital signal.

  The A / D conversion interface 108 is connected to the central processing unit 107 and serves as an interface for providing the digital signal to the central processing unit 107.

  The keyboard / mouse 106 is connected to the operation input interface 109 and outputs a command or input from the user as a signal.

  The operation input interface 109 is connected to the central processing unit 107 and serves as an interface for providing a signal from a user to the central processing unit 107.

  The storage unit 110 includes a correction data storage unit 110a, a dimension data storage unit 110b, and a data storage unit 110c. The storage unit 110 outputs predetermined data to the central processing unit 107 and outputs data from the central processing unit 107 to the predetermined storage unit. To store.

  The correction data storage unit 110a stores data relating to correction amounts (eav, eah, edv, edh) (hereinafter also referred to as correction data). The dimension data (A, B, D) is stored in the dimension data storage unit 110b. The data storage unit 110c is composed of a plurality of storage areas, and the nth storage area stores measurement value, deviation amount, and adjustment amount data acquired and calculated by the nth deviation measurement described later. The

  The correction amounts (eav, eah, edv, edh) are the axis center 11c of the fixed side rotating device 11 and the adjusting side before the fixing bolt is tightened when the adjusting side rotating device 12 is fixed to the base 15. Data obtained from the difference between the amount of deviation from the shaft center 12c of the rotating device 12 and the amount of deviation after retightening. A detailed calculation method of the correction amount will be described later.

  The dimension data (A, B, D) refers to the dimensions of each part of the fixed-side rotating device 11 and the adjusting-side rotating device 12 shown in FIG. The dimension data A refers to the length from the bolt mounting portion of the front base 12a of the adjustment-side rotating device 12 to the tip surface of the adjusting-side rotating device flange 14. The dimension data B indicates the length between the bolt mounting portion of the front base 12a and the bolt mounting portion of the rear base 12b of the adjustment-side rotating device 12. The dimension data D indicates the diameter of the fixed-side rotating device flange 13 of the fixed-side rotating device 11.

  The external storage unit 111 includes a correction data storage unit 111a and a dimension data storage unit 111b. The external storage unit 111 outputs predetermined data to the central processing unit 107 and stores data from the central processing unit 107 in the predetermined storage unit. The correction amount (eav, eah, edv, edh) is stored in the correction data storage unit 111a. Dimension data (A, B, D) is stored in the dimension data storage unit 111b.

  The display unit interface 112 is connected to the central processing unit 107 and serves as an interface for providing a signal of the central processing unit 107 to the display unit 105.

  The display unit 105 outputs a predetermined input / output screen based on a signal from the central processing unit 107.

  The central processing unit 107 controls all the operations of the centering adjustment support apparatus 100 of the present embodiment, performs predetermined calculation on the measurement data from the displacement meter D101 and the displacement meter A102, and the deviation obtained as a result of the calculation. The amount and the correction amount are output to the display unit 105.

  The operation of the centering adjustment support apparatus according to the embodiment of the present invention will be described below with reference to the drawings.

  FIG. 3 is a flowchart showing the operation of the centering adjustment support apparatus according to the embodiment of the present invention. Note that the steps surrounded by a solid line in the flowchart are steps performed by the centering adjustment support apparatus 100 of the present embodiment, and the steps surrounded by a dotted line are the centering adjustment support of the rotating device of the present embodiment. This is a step in which an operator performs a centering operation based on the screen output of the apparatus 100.

  In step 100 (step is abbreviated as S in the figure), the central processing unit 107 stores initial correction amounts (eav, eah, edv, edh) and dimension data (A, B, D) in the storage unit 110. Read.

  FIG. 4 is a detailed flow showing the detailed processing of step 100.

  In step 101, the central processing unit 107 searches the correction data storage unit 111 a of the external storage unit 111 to check whether correction data exists. If there is correction data, the process proceeds to step 102, and if there is no correction data, the process proceeds to step 103.

  In step 102, the central processing unit 107 reads the correction amount stored in the correction data storage unit 111a of the external storage unit 111 into the correction data storage unit 110a of the storage unit 110, and proceeds to step 104.

  In step 103, the central processing unit 107 sets the correction amount stored in the correction data storage unit 110 a of the storage unit 110 to 0, and proceeds to step 104.

  In step 104, the central processing unit 107 searches the dimension data storage unit 111 b of the external storage unit 111 to confirm the presence / absence of dimension data. If there is dimension data, the process proceeds to step 105, and if there is no dimension data, the process proceeds to step 106.

  In step 105, the central processing unit 107 reads the dimension data stored in the dimension data storage unit 111 b of the external storage unit 111 into the dimension data storage unit 110 b of the storage unit 110 and proceeds to step 101.

  In step 106, the central processing unit 107 stores the dimension data input from the keyboard / mouse 106 in the dimension data storage unit 110 b of the storage unit 110 and proceeds to step 101.

  In step 200, the rotational axis deviation between the fixed side rotating device 11 and the adjusting side rotating device 12 is measured. In step 200, measurement results from the displacement meter D 101 and the displacement meter A 102 are input to the central processing unit 107.

  FIG. 6A is a schematic diagram for explaining a method of measuring a rotational axis deviation between the fixed rotating device 11 and the adjusting rotating device 12. FIG. 6A (a) is a diagram for explaining a method for measuring the parallelism of both rotating shafts, and FIG. 6A (b) is a diagram for explaining a method for measuring the eccentricity of both rotating shafts.

  FIG. 6A (a) is a diagram showing a method for measuring the parallelism of both rotation axes. If the position of the displacement meter in FIG. 1 is set to 0 °, the fixed-side rotating device flange 13 and the adjusting-side rotating device flange 14 are rotated 90 ° synchronously from 0 ° clockwise or counterclockwise. The displacement with respect to the side surface 13a of the fixed-side rotating device flange 13 is measured by a displacement meter A102 at each of 0 °, 90 °, 180 °, and 270 °. The parallelism obtained by measuring the displacement at 0 °, 90 °, 180 °, and 270 ° is defined as a0, a90, a180, and a270, respectively.

  FIG. 6A (b) is a diagram showing a method for measuring the eccentricity of both rotating shafts. If this is set to 0 degrees with respect to the position of the displacement meter in FIG. 1, the fixed-side rotating device flange 13 and the adjusting-side rotating device flange 14 are rotated 90 ° synchronously from 0 ° clockwise or counterclockwise, The displacement with respect to the outer peripheral surface 13b of the stationary rotating device flange 13 is measured by a displacement meter D101 at each of 0 °, 90 °, 180 °, and 270 °. The eccentricities obtained by measuring the displacement at 0 °, 90 °, 180 °, and 270 ° are defined as d0, d90, d180, and d270, respectively.

  In step 300, the central processing unit 107 calculates the amount of adjustment by calculating the amount of deviation of the rotation axis between the fixed side rotating device 11 and the adjusting side rotating device 12 using the measurement result.

  FIG. 5 is a detailed flow showing the detailed processing of step 300.

  In step 301, the central processing unit 107 reads the correction amounts (eav, eah, edv, edh) stored in the correction data storage unit 110 a of the storage unit 110, and proceeds to step 302.

  In step 302, the central processing unit 107 reads the parallelism (a0, a90, a180, a270) and the eccentricity (d0, d90, d180, d270) measured in step 200, and proceeds to step 303.

  In step 303, the central processing unit 107 calculates a deviation amount. Here, the definition of the shift amount will be briefly described.

  FIG. 6B is a schematic diagram illustrating the degree of eccentricity and parallelism generated between the fixed-side rotating device 11 and the adjusting-side rotating device 12. FIG. 6B (a) is a diagram showing the parallelism of both rotating shafts, and FIG. 6B (b) is a diagram showing the eccentricity of both rotating shafts.

  As can be seen from FIG. 6B (a), the parallelism av in the vertical direction and the parallelism ah in the horizontal direction are defined by angles generated by the inclinations of the side surfaces 13a and 14a of both flanges. In the drawing, the parallelism av in the vertical direction and the parallelism ah in the horizontal direction are shown at the same position, but this is for the sake of simplification of the description. The degree av and the parallel degree ah in the horizontal direction are measured at positions orthogonal to each other.

  Further, as can be seen from FIG. 6B (b), the eccentricity dv in the vertical direction and the eccentricity dh in the horizontal direction are defined by the length caused by the deviation between the shaft centers 11c and 12c. In the drawing, the eccentricity dv in the vertical direction dv and the eccentricity dh in the horizontal direction are shown at the same position, but this is for the sake of simplification of the description. The degree dv and the horizontal eccentricity dh are measured at positions orthogonal to each other.

  Next, a method for obtaining the vertical parallelism av and the horizontal parallelism ah, and the vertical eccentricity dv and horizontal eccentricity dh in step 303 will be described.

  The calculation of parallelism is performed as follows. The parallelism in the vertical direction can be calculated from the difference between the measured values of the displacement meter A102 and the displacement meter D101 at 0 ° and 180 °. The parallelism in the horizontal direction can be calculated from the difference between measured values at 90 ° and 270 ° between the displacement meter A102 and the displacement meter D101.

Parallelism in the vertical direction av = a180-a0 (the direction in which the 0 ° position opens relative to the 180 ° position is positive)
Parallelism in the horizontal direction ah = a270-a90 (the direction in which the 90 ° position opens relative to the 270 ° position is positive)

  The calculation of the eccentricity is performed as follows.

Vertical eccentricity dv = (d0−d180) ÷ 2 (0 ° position direction is positive with respect to 180 ° position)
Horizontal eccentricity dh = (d90−d270) ÷ 2 (90 ° position direction is positive with respect to 270 ° position)

  The parallelism and eccentricity of the two rotation axes calculated in this way are defined as the deviation amount. After calculating the deviation amount, the process proceeds to step 304.

  In step 304, the central processing unit 107 calculates an adjustment amount from the deviation amount and the correction amount. Here, the definition of the adjustment amount will be briefly described.

  FIG. 6C is a schematic diagram illustrating the adjustment amount of the adjustment-side rotating device 12. FIG. 6C (a) is a diagram showing an adjustment amount when the adjustment-side rotating device 12 is viewed from the side, and FIG. 6C (b) shows an adjustment amount when the adjustment-side rotating device 12 is viewed from above. FIG.

  As can be seen from FIG. 6C (a), the adjustment amount of the adjustment-side rotating device 12 is adjusted in the vertical direction by inserting a liner or the like between the front base 12a and the base 15 of the non-adjusted device 12. It can be expressed by an amount xfv and an adjustment amount xrv that is adjusted in the vertical direction by inserting a liner or the like between the rear base 12b and the base 15 of the non-adjusted device 12.

  As can be seen from FIG. 6C (b), the adjustment amount of the adjustment-side rotating device 12 includes the adjustment amount xfh adjusted by moving the front base 12a of the non-adjusted device 12 in the horizontal direction, and the non-adjusted value. It can be expressed by an adjustment amount xrh adjusted by moving the rear base 12b of the device 12 in the horizontal direction.

  The calculation method of the adjustment amount from the deviation amount and the correction amount performed by the central processing unit 107 is as follows.

  The amount of adjustment in the vertical direction can be obtained by multiplying the difference between the measured values of the displacement meter A102 at 0 ° and 180 ° by B ÷ D. The amount of adjustment in the horizontal direction can be obtained by multiplying the difference between the measured values of the displacement meter A102 at 90 ° and 270 ° by B ÷ D.

  The adjustment amount of the rear base position of the adjustment-side rotating device as the parallelism adjustment can be expressed by the following relational expression.

Vertical direction: xav = (av + eav) × B ÷ D
Horizontal direction: xah = (ah + eah) × B ÷ D

  A value obtained by adding the correction values eav and eah to the measured values av and ah of the parallelism is considered to be a true deviation amount considering the deviation due to the tightening. The amount xav and xah obtained by multiplying the true deviation amount by the ratio B / D between the distance B between the front and rear bases and the flange diameter D is the thickness of the liner inserted into the rear base and the adjustment amount for moving the rear base in the horizontal direction. .

  Next, an eccentricity deviation amount and an adjustment amount newly generated by the parallelism adjustment are calculated. The newly generated eccentricity deviation amount and adjustment amount can be expressed by the following relational expression.

Vertical direction: Deviation amount av '= − xav × A ÷ B Adjustment amount xav ′ = xav × A ÷ B
Horizontal direction: Deviation amount ah '= − xah × A ÷ B Adjustment amount xah' = xah × A ÷ B

  In the parallelism adjustment, the rear base is moved in the vertical direction and the horizontal direction, so that the flange portion is displaced in the direction opposite to the movement direction of the rear base with the front base as a fulcrum. Amount of parallelism adjustment xav and xah multiplied by ratio A / B of distance A between front base and front base B from flange A / B The amount of polarity av 'and ah' are reversed, and the amount of deviation is xav 'And xah' is the adjustment amount.

  As an eccentricity adjustment, the adjustment amount of the parallel movement of the adjustment-side rotating device can be expressed by the following relational expression.

Vertical direction: xdv = − (dv + edv)
Horizontal direction: xdh = − (dh + edh)

  A value obtained by adding the correction amounts edv and edh to the measured values dv and dh of the eccentricity is considered to be a true deviation amount considering a deviation due to the tightening. The xdv and xdh in which the polarity of the true shift amount is reversed are the thickness of the liner to be inserted in order to translate the front and rear bases in the vertical direction and the adjustment amount for translating the front and rear bases in the horizontal direction.

  Then, the final adjustment amount of the adjustment-side rotating device 12 is obtained as follows.

Vertical adjustment amount of the front base 12a of the adjustment-side rotating device 12: xfv = xav '+ xdv
Horizontal adjustment amount of the front base 12a of the adjustment-side rotating device 12: xfh = xah '+ xdh
Vertical adjustment amount of rear base 12b of adjustment-side rotating device 12: xrv = xav + xav '+ xdv
Horizontal adjustment amount of rear base 12b of adjustment-side rotating device 12: xrh = xah + xah '+ xdh

  After the adjustment amount calculation, the process proceeds to step 305.

  In step 305, the central processing unit 107 stores the measurement value, the deviation amount, and the adjustment amount in the storage unit 110. Specifically, the central processing unit 107 stores measured values (a0, a90, a180, a270, d0, d90, n−1) in the n−1th storage area of the data storage unit 110c of the storage unit 110 as the n−1th data. d180, d270), shift amount (av, ah, dv, dh) and adjustment amount (xav, xah, xav ', xah', xfv, xrv, xfh, xrh) are stored.

  In step 305, the central processing unit 107 outputs the measurement value, the shift amount, and the adjustment amount to the display unit 105, and proceeds to step A.

  FIG. 9 is an example of a display screen of the measured value, the shift amount, and the adjustment amount on the display unit 105 in step 305.

  In the windows P11 to P15 in the figure, measured values of parallelism at respective angles of 0 °, 90 °, 180 °, 270 °, and 360 ° are displayed. The windows P21 to P25 display the measured values of the eccentricity at the respective angles of 0 °, 90 °, 180 °, 270 °, and 360 °.

  Note that the parallelism of 0 ° and P15 of P11 and the eccentricity of 360 ° of 0 ° and P25 of P21 are measured again with the same measurement point rotated once by the flange. This is to confirm that there are no errors or variations in work.

  In the windows P31 and P32, the vertical adjustment amounts of the front base 12a and the rear base 12b are displayed. In the windows P41 to P44, adjustment amounts in the left and right directions of the front base 12a and the rear base 12b are displayed.

  In step A, the operator confirms the amount of deviation displayed on the display unit 105 and confirms whether the amount of deviation in the vertical direction is within an allowable value. If it is within the allowable value, the process proceeds to Step B, and if it is outside the allowable value, the process proceeds to Step C.

  In step C, the operator adjusts the vertical displacement of the adjustment-side rotating device 12 based on the adjustment amount displayed on the display unit 105, and returns to step 200.

  In step B, the operator confirms the amount of deviation displayed on the display unit 105 and confirms whether the amount of deviation in the left-right direction is within an allowable value. If it is within the allowable value, the process proceeds to Step E, and if it is outside the allowable value, the process proceeds to Step D.

  In Step D, the operator adjusts the left-right direction deviation of the adjustment-side rotating device 12 based on the adjustment amount displayed on the display unit 105, and returns to Step 200.

  In the adjustment of Steps A to D, the horizontal direction of the shaft easily shifts as the liner is inserted into or removed from the front base 12a and the rear base 12b of the adjustment-side rotating device in the vertical shift adjustment. First, in step C, the vertical adjustment of the shaft is performed. When the deviation in the vertical direction is within the allowable value, the horizontal direction (left-right direction) of the shaft is adjusted in Step D. In the adjustment operation in the horizontal direction, the adjustment-side rotating device 12 is only moved in the horizontal direction, so that there is no influence on the vertical deviation depending on the liner.

  In Step E, the operator retightens the bolts of the front base 12a and the rear base 12b, fixes the adjustment-side rotating device 12 to the base 15, and proceeds to Step 400.

  After the adjustment is completed in step E, the bolts that fix the adjustment-side rotating device 12 to the base 15 are tightened. At this time, the front base 12a and the rear base 12b of the adjustment-side rotating device 12 are tightened. If these four places or the corresponding four places on the pedestal 15 are not on the same plane, it will be supported at three points, and distortion will occur at the time of additional tightening, causing a shift in the shaft.

  The ideal solution is to adjust with a liner to support four points, but this requires skill. In addition, in the case of newly installed equipment, there may be sufficient time to perform this adjustment, but in the case of equipment removal and re-installation due to maintenance, etc., it is recognized that the liner was originally adjusted. In many cases, the working time is limited.

  Under these circumstances, equipment that has been installed with three points supported at the time of new installation and that has been centered as a result of trial and error will return to the final result of the previous installation in the process of centering adjustment at the time of re-installation. The direct adjustment process cannot be taken and the same process as trial and error at the time of new installation is forced every time it is re-installed.

  In order to solve such a problem, the centering adjustment support apparatus 100 according to the present embodiment uses an amount of shaft misalignment as a correction amount as a result of distortion due to tightening.

  Specifically, the final result of the deviation measurement in the vertical and horizontal directions at step 200 is compared with the result of the deviation measurement after retightening at step 400, the difference is held as a correction amount, and the next time During the adjustment process at the time of installation, the amount of deviation is displayed as the estimated amount of deviation after retightening obtained by adding the calculated value based on the actual measurement value and the amount of correction, and the amount of adjustment is displayed as the amount of correction. Displays the adjustment amount with the.

  By doing so, it is possible to perform an adjustment operation in which the result of the tightening is predicted, and it is possible to eliminate readjustment after the tightening. The correction amount is updated by replacing the correction amount at the time of the previous deviation measurement with the final value of the measurement result at step 200 at the time of the current deviation measurement and the difference between the measurement results at the current step 400. It can be updated to a more accurate correction value corresponding to the change. In addition, in consideration of measurement variations, the correction amount at the previous deviation measurement and the correction amount obtained at the current deviation measurement may be added together at an arbitrary ratio.

  In step 400, the measurement of the deviation of the rotation axis between the fixed-side rotating device 11 and the adjusting-side rotating device 12 is performed again. Since the content of the measurement in step 400 is the same as that in step 200, description thereof is omitted. Next, the process proceeds to step 500.

  In step 500, the central processing unit 107 calculates the amount of adjustment by calculating the amount of deviation of the rotational axis between the fixed side rotating device 11 and the adjusting side rotating device 12 using the measurement result. Specifically, the central processing unit 107 stores the measurement value, the deviation amount, and the adjustment amount as the nth data in the nth storage area of the data storage unit 110c of the storage unit 110. The details of the calculation of the shift amount and the calculation of the adjustment amount in step 500 are the same as those in step 300, and thus the description thereof is omitted. Next, the process proceeds to step 600.

  In step 600, the central processing unit 107 calculates a correction amount from the deviation amount obtained in step 300 before the tightening (n-1th) and the deviation amount obtained in step 500 after the tightening (n-th). Is stored in the correction data storage unit 110a of the storage unit 110.

  FIG. 7 is a detailed flow showing the detailed processing of step 600.

  In step 601, the central processing unit 107 stores “data n” after retightening (nth) stored in the nth storage area of the data storage unit 110c of the storage unit 110 and the (n−1) th storage area. The deviation amount difference is calculated as the correction amount from the “data n−1” before the tightening (n−1th) stored in FIG.

  The deviation amount difference as the correction amount is expressed as follows.

Parallelism in the vertical direction: eav = av [n−1] −av [n]
Horizontal parallelism: eah = ah [n−1] −ah [n]
Vertical eccentricity: edv = dv [n−1] −dv [n]
Horizontal eccentricity: edh = dh [n−1] −dh [n]

  In step 602, the central processing unit 107 saves the deviation amount difference as the correction amount (eav, eah, edv, edh) in the correction data storage unit 110a of the storage unit 110, and proceeds to step F.

  In step F, the operator confirms whether or not the amount of vertical displacement after the additional tightening is within an allowable value. If it is within the allowable value, the process proceeds to Step G, and if it is outside the allowable value, the process proceeds to Step C.

  In step G, the operator checks whether or not the amount of lateral displacement after the additional tightening is within an allowable value. When it is within the allowable value, the process proceeds to Step 700, and when it is outside the allowable value, the process proceeds to Step D.

  In step 700, the central processing unit 107 corrects the correction amounts (eav, eah, edv, edh) stored in the correction data storage unit 110a of the storage unit 110 and the dimension data (A, B) stored in the dimension data storage unit 110b. , D) are stored in the correction data storage unit 111a and the dimension data storage unit 111b of the external storage unit 111, respectively.

  FIG. 8 is a detailed flow showing the detailed processing of step 700.

  In step 701, the central processing unit 107 stores the correction amount (eav, eah, edv, edh) stored in the correction data storage unit 110 a of the storage unit 110 in the correction data storage unit 111 a of the external storage unit 111.

  In step 702, the central processing unit 107 stores the dimension data (A, B, D) stored in the dimension data storage unit 110 b of the storage unit 110 in the dimension data storage unit 111 b of the external storage unit 111.

  As described above, according to the centering adjustment support device of the present embodiment, the difference between the deviation after adjustment calculated from the measurement result and the adjustment amount and the deviation obtained from the actual measurement result is calculated in the next centering operation. Since the adjustment amount instruction at the time is taken into account, even if a distortion caused by three-point support due to subtle precision loss of the pedestal or equipment occurs, an adjustment amount in anticipation of the effect of the distortion is indicated in advance By being able to do so, it becomes possible to keep the deviation after the retightening within an allowable value, and the number of cases that need to be readjusted can be reduced, and the work can be made more efficient.

It is a figure which shows the state which attached the centering adjustment assistance apparatus of this embodiment to the actual fixed side rotation apparatus and adjustment side rotation apparatus. It is a block diagram which shows the detailed structure of the centering adjustment assistance apparatus of this embodiment. It is a flowchart which shows operation | movement of the centering adjustment assistance apparatus of this embodiment. It is a detailed flow which shows the detailed process of step 100 of the flowchart of FIG. It is a detailed flow which shows the detailed process of step 300 of the flowchart of FIG. It is a schematic diagram explaining the deviation measuring method of the rotating shaft of a stationary-side rotating apparatus and an adjustment-side rotating apparatus. It is a schematic diagram which shows the shift | offset | difference of the eccentricity and parallelism which arise between a fixed side rotating apparatus and an adjustment side rotating apparatus. It is a schematic diagram which shows the adjustment amount of an adjustment side rotation apparatus. It is a detailed flow which shows the detailed process of step 600 of the flowchart of FIG. It is a detailed flow which shows the detailed process of step 700 of the flowchart of FIG. It is an example of the display screen of the measured value, deviation | shift amount, and adjustment amount in the display part of this embodiment.

Explanation of symbols

100: Centering adjustment support device 101: Displacement meter D
102: Displacement meter A
103: A / D converter 104: Information processing unit 105: Display unit 106: Keyboard / mouse 107: Central processing unit 108: A / D conversion interface 109: Operation input interface 110: Storage unit 111: External storage unit 112: Display Interface

Claims (1)

A centering adjustment support device for centering a rotation axis of a fixed-side rotating device and a rotating shaft of an adjusting-side rotating device having a fixed portion with bolts on at least four pedestals,
A displacement sensor for measuring a displacement between a rotation axis of the adjustment-side rotation device and a rotation axis of the fixed-side rotation device;
Based on the output from the displacement sensor,
While calculating the amount of deviation between the rotation axis of the adjustment-side rotating device and the rotation axis of the fixed-side rotating device before fixing with the bolt of the adjustment-side rotating device on the pedestal,
Calculate the amount of deviation between the rotation axis of the adjustment-side rotating device and the rotation axis of the fixed-side rotating device after fixing with the bolt of the adjustment-side rotating device on the pedestal,
Calculate the correction amount from the deviation amount before fixing and the deviation amount after fixing,
In the centering adjustment process at the next re-installation , based on the correction amount, correct the deviation amount between the rotating shaft of the adjustment-side rotating device and the rotating shaft of the fixed-side rotating device before the fixing ,
An information processing unit that calculates an adjustment amount of the position of the adjustment-side rotating device from a deviation amount between the corrected rotation shaft of the adjusting-side rotation device and the rotation axis of the fixed-side rotation device before the correction;
A centering adjustment support device characterized by comprising:

Images