Shaft core adjustment measuring device for coupling section and installation adjustment method for rotating machine using the same

Abstract

To facilitate the work of checking the shaft core adjustment state of a coupling section and to perform shaft core adjustment simply and accurately when installing rotating machines such as large vertical shaft pumps, horizontal shaft pumps, and hydraulic generators.SOLUTION: A device for measuring the shaft core adjustment state between a pair of coupling sections connecting a drive-side shaft and a driven-side shaft of a rotating machine comprises: a plurality of digital dial gauges fixed to one of the coupling sections and capable of bringing measuring elements into contact with the other coupling section; a computer that collects measurement data from the digital dial gauges; and a monitor that displays the measurement data from the digital dial gauges via the computer.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an axial center adjustment measuring device for measuring the axial center adjustment state of a coupling portion provided between a motor and a pump, between a water turbine and a generator, between a prime mover and various machines such as a speed reducer and a dehydrator, etc., in order to install rotating machines such as a lifting and drainage pump, a generator, and a prime mover installed in a lifting and drainage facility, various equipment, and facilities, etc., and an installation adjustment method for a rotating machine using the same.

Background Art

[0002] Conventionally, when installing a hydraulic machine such as a vertical shaft pump on a foundation in various facilities such as a lifting and drainage facility, a sewage treatment facility, a factory, and a drainage facility, for example, when installing a pump and its motor, usually, the pump is installed on a base plate seat provided on the foundation, and the motor is installed on the upper floor, and the rotation shaft of the pump and the drive shaft of the motor are connected via a coupling portion. In this case, it is required to accurately adjust the axial center between the rotation shaft of these pumps and the drive shaft of the motor.

[0003] Patent Document 1 discloses a measuring method for an axial center adjustment jig at a coupling portion between a motor of a rotating device and a rotating body such as a pump. In this measuring method, the coupling portion on the motor side and the coupling portion on the pump side are opposed to each other, and the dial gauge is fixed to the bolt by screwing the end of the dial gauge into the meche cut into the head of the bolt, and the bolt is fixed to the coupling portion on the motor side. Then, the measuring element of the dial gauge is brought into contact with the coupling portion on the pump side, and while rotating the coupling portion on the motor side, the change in the scale of the dial gauge is read, and it is described that the axial center adjustment work is performed.

[0004] However, in such shaft alignment work, although it is to be carried out on a temporary scaffold, when visually checking the value of the dial gauge fixed to the coupling part, as the pump and motor become larger, the checking work becomes unsafe. In particular, in water treatment facilities, when the pump is installed on the lower floor and the motor is installed on the upper floor, in order to check the dial gauge on the coupling part arranged between the upper and lower floors, it is necessary to install a scaffold and perform the checking work on the scaffold, which is a concern in terms of safety.

[0005] Moreover, it is necessary to read the measured values of the dial gauge at a plurality of locations in the circumferential direction while rotating one coupling part to move the measuring element, and sometimes an unreasonable posture is forced on the scaffold. This is not only an unstable and complicated operation, but also difficult to accurately check the measured values, which is likely to lead to a decrease in the accuracy of the measurement work.

[0006] Patent Document 2 discloses that in the shaft alignment work of large rotating equipment such as turbines, the tip of the rod of a hydraulic cylinder is hooked on the bolt of the coupling part, and by driving the hydraulic cylinder, the coupling part is rotated by a predetermined angle. It is described that by using it for shaft alignment work, time can be shortened and the work can be accurately performed.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0008] However, in this Patent Document 2, only the rotation of the coupling part is disclosed, and how to check the shaft alignment state including the inclination of the coupling part is not disclosed. Therefore, at the site or the like, especially when installing a large-diameter pump or the like, there is a demand for the development of an axial center adjustment measuring device that can easily confirm the axial center adjustment state of the coupling part and accurately adjust the axial center.

[0009] The present invention has been made in view of such circumstances, and when installing rotating machines such as large vertical shaft pumps for lifting and draining water and hydraulic generators, it aims to facilitate the confirmation of the axial center adjustment state of the coupling part and to adjust the axial center simply and accurately.

Means for Solving the Problems

[0010] The axial center adjustment measuring device for the coupling part of the present invention is a device for measuring the axial center adjustment state between a pair of coupling parts that connect the driving shaft and the driven shaft of a rotating machine, and is fixed to one of the coupling parts, and a plurality of digital dial gauges capable of bringing a measuring element into contact with the other coupling part, a computer for collecting the measurement data of these digital dial gauges, and a monitor for displaying the measurement data of the digital dial gauges by this computer.

[0011] With each digital dial gauge fixed to one of the coupling parts by magnetism or a clamp or the like, the measuring element is brought into contact with the other coupling part, and after collecting the measurement data by the computer and displaying it on the monitor, the axial center adjustment state including the inclination of the coupling part can be confirmed via the monitor without directly visually observing the digital dial gauge of the coupling part. Since there is no need to directly visually recognize the dial gauge in this way, the work of confirming the axial center adjustment state becomes easy, and even when the rotating machine is large, the axial center can be accurately adjusted while visually recognizing the axial center adjustment state of the coupling part on the monitor. As combinations of the driving-side device and the driven-side device of the rotating machine, for example, various machines such as a motor and a pump, a water turbine and a generator, and a prime mover and a speed reducer correspond.

[0012] In the axial center adjustment measuring device of the coupling part of the present invention, it is preferable that at least one digital dial gauge is provided for measuring between the axial end faces of the coupling part and at least one for measuring the outer peripheral surface.

[0013] In the axial center adjustment measuring device of the coupling of the present invention, it is preferable that the computer causes the monitor to display the measurement data of each of the plurality of digital dial gauges. By checking the monitor, the measurement data of each digital dial gauge can be grasped, and the work of checking the axial center adjustment state becomes easy.

[0014] In the axial center adjustment measuring device of the coupling part of the present invention, it is preferable that the computer has a function of displaying a warning on the monitor when the deviation of the axial center of the coupling part is larger than a predetermined reference value.

[0015] When reading the axial center adjustment in numerical values or the like, if a warning display is provided, it is possible to prevent the operator from misreading the measured value and accurately confirm the axial center adjustment. In addition, by working while the operator checks the warning display, the confirmation work is facilitated, and the measurement work to the adjustment work can be performed accurately and reliably.

[0016] In the axial center adjustment measuring device of the coupling part of the present invention, it is preferable that a plurality of measurement data display parts for displaying the measured value data are provided on the monitor corresponding to a plurality of positions in the circumferential direction of the shaft. Measure the circumferential direction of the shaft with a digital dial gauge at intervals of, for example, 90° (90° intervals in the circumferential direction for the vertical axis and 90° intervals in the up, down, left, and right directions for the horizontal axis), and display the measurement data for each 90° on the measurement data display part of the monitor. By doing so, the measurement data at a plurality of locations (four locations) can be grasped at once, and the work becomes more accurate and easier. It is preferable that the plurality of locations are the data measured at four directions, namely, the water flow direction flowing horizontally in the rotating machine and the direction orthogonal to this water flow direction.

[0017] The axial center adjustment state in four directions based on the water flow direction can be adjusted, enabling high-precision measurement of the coupling part. Therefore, when installing a rotating machine, it can be installed with high precision based on the water flow direction.

[0018] In the axial center adjustment measurement device of the coupling part of the present invention, it is desirable that the digital dial gauge has a communication function for wirelessly communicating measurement data to the computer.

[0019] By wirelessly transmitting the measurement data of the digital dial gauge to the computer via the communication function, it becomes unnecessary to route connection cables, etc., and the work can be made easy and safe.

[0020] The installation adjustment method of a rotating machine using the axial center adjustment measurement device of the coupling part of the present invention is as follows: When installing the driving-side device and the driven-side device of the rotating device respectively, a plurality of digital dial gauges are fixed to one side of the coupling part that connects the axes of the driving-side device and the driven-side device, and the measuring heads of the digital dial gauges are brought into contact with the other side of the coupling part. The measurement data of these digital dial gauges are collected by a computer, and while the collected measurement data is displayed on a monitor, the axial center of the coupling part is adjusted to install the driving-side device and the driven-side device of the rotating machine.

[0021] According to this installation adjustment method of the rotating machine, since the digital dial gauges fixed to the coupling part are arranged at predetermined positions and the axial center adjustment state of the coupling part can be confirmed through the monitor, in a large rotating machine, there is no need to force an unreasonable posture on the scaffold, and the axial center adjustment state can be easily confirmed through the monitor, and the axial center can be accurately adjusted.

Effects of the Invention

[0022] According to the present invention, since the work of checking the axial center adjustment state of the coupling portion is facilitated, the rotating machine can be installed with high accuracy, and the rotating machine can be accurately attached to the base plate, and the functionality of the rotating machine can be fully exhibited.

Brief Description of the Drawings

[0023]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0024] Hereinafter, embodiments of the axial center adjustment measuring device for the coupling portion of the present invention and the installation adjustment method for a rotating machine using the same will be described with reference to the drawings. In this embodiment, an example of a motor as a driving side device of a rotating machine and a vertical shaft axial flow pump (hereinafter simply referred to as a pump) as a driven side device is shown.

[0025] (Structure of the axial center adjustment measuring device for the coupling) The axial center adjustment measuring device of the coupling part in this embodiment (hereinafter simply referred to as the axial center adjustment measuring device) 10 is a device that measures the axial center adjustment state of the coupling part 15 that connects the output shaft (drive shaft) 13 of the motor 11 and the rotating shaft (driven shaft) 14 of the pump 12 when installing the motor 11 and the pump 12 connected to this motor 11. As shown in FIGS. 2 and 5, it is equipped with a device consisting of two digital dial gauges 44A and 44B, a computer 17, and a monitor 18. The axial center adjustment in this case includes adjusting the inclination of the shaft between the two shafts 13 and 14, the deviation in the horizontal direction orthogonal to the shafts 13 and 14, and the like.

[0026] The foundation on which the motor 11 and the pump 12 are installed is a two-story structure of the upper floor and the lower floor. The pump 12 is installed on the foundation (concrete) 21 of the lower floor, and the motor 11 is installed on the foundation (concrete) 22 of the upper floor. The output shaft 13 of the motor 11 on the upper floor extends vertically downward through the foundation 22 of the upper floor, and the rotating shaft 14 of the pump 12 on the lower floor is arranged vertically upward, and the output shaft 13 and the rotating shaft 14 are connected by the coupling part 15.

[0027] In the foundation 21 of the lower floor where the pump 12 is installed, an opening hole 23 with a diameter of approximately φ1500 mm is formed in this example. The pump 12 is equipped with a suction pipe 26 that extends vertically downward and a discharge pipe 27 that extends horizontally on the pump body 25 such as a vertical shaft pump. The suction pipe 26 extends downward from the opening hole 23 below the foundation 21, the pump body 25 is arranged on the foundation 21, and the discharge pipe 27 is arranged horizontally above the foundation 21. An opening hole 28 is also formed in the foundation 22 of the upper floor where the motor 11 is installed, and the output shaft 13 of the motor 11 extends downward through this opening hole 28.

[0028] In this case, the base plate 62 of the pump 12 is mounted on the base plate seat 61 horizontally fixed on the foundation 21. On the other hand, for the motor 11, an annular base plate seat 66 is fixed to a pedestal 63 horizontally fixed on the foundation 22, and the base plate 64 of the motor 11 is mounted on the base plate seat 66. As shown in FIG. 3, this pedestal 63 is assembled with a plurality of girder members 65 vertically and horizontally, and an annular base plate seat 66 is integrally fixed to the central part thereof. Reference numeral 67 indicates a fixing hole through which an anchor bolt (not shown) of the foundation 22 is inserted.

[0029] Also, around the base plate seat 66, an adjusting screw jack 68 for finely adjusting the horizontal position of the base plate 64 fixed in a mounted state on the base plate seat 66 is provided. As shown enlarged in FIG. 4, this adjusting screw jack 68 has a structure in which a male screw 70 is horizontally held in a radially inward direction of the base plate seat 66 by a block 69 erected outside the base plate seat 66, and four are provided at intervals of 90° in the circumferential direction. By abutting and pushing the tip of the male screw 70 against the outer peripheral surface of the base plate 64 on the base plate seat 66, the base plate 64 can be finely adjusted and moved horizontally as shown by the arrow on the base plate seat 66. By being provided at intervals of 90° in the circumferential direction, by combining these four adjusting screw jacks 68, it is possible to move the base plate 64 in an arbitrary horizontal direction and finely adjust it in the central direction.

[0030] FIG. 2 shows an enlarged view of a coupling portion urchin 15 that connects between the output shaft 13 of the motor 11 and the rotating shaft 14 of the pump 12. An axial center adjustment measuring device 10 is provided for adjusting the axial center of the coupling portion 15. The axial center adjustment measuring device 10 includes two digital dial gauges 44A and 44B, a computer 17 that collects the measurement data of these digital dial gauges 44A and 44B, and a monitor 18 that displays the measurement data of the digital dial gauges 44A and 44B by this computer 17.

[0031] The digital dial gauges 44A and 44B are provided with a magnet stand 41, a support column 42, an arm 43, etc. The magnet stand 41 is of a magnetic type that can be fixed to the mounting target part by magnetic force, and is formed in a cubic or rectangular parallelepiped block shape. The support column 42 is horizontally fixed to the magnet stand 41, and an arm 43 is attached to the tip thereof so as to be finely adjustable. The digital dial gauges 44A and 44B are supported at the tip of the arm 43 so as to be finely adjustable.

[0032] The digital dial gauges 44A and 44B are digital type, and have a function of converting the movement of the measuring element 45 at the tip into digital data. Further, the digital dial gauges 44A and 44B are provided with a wireless communication function together with a computer 17 (see FIG. 5), and the measurement data is transmitted to the computer 17 via this communication function. Since this communication function is wireless, the work of laying cables such as those for wired connections is not required, and it is possible to check the shaft alignment state from a farther position compared to wired connections. Examples of this wireless communication include WiFi and Bluetooth (registered trademark).

[0033] As shown in FIG. 2 and the like, the digital dial gauges 44A and 44B include a dial gauge 44A for measuring between the axial end faces for measuring the opposing surface from one coupling part 15A to the other coupling part 15B, and an outer peripheral surface measuring dial gauge 44B for measuring the outer peripheral surface from one coupling part 15A to the other coupling part 15B.

[0034] In this case, in the illustrated example, for the dial gauge 44A for measuring between the axial end faces, the measuring element 45A is in a lever type so that the opposing surface can be measured from the outside of the coupling part, and the measuring element 45A is applied to the opposing surface at almost a right angle (with the contact angle as small as possible) for measurement. A spindle type dial gauge may also be used. On the other hand, for the dial gauge 44B for measuring the outer peripheral surface, the measuring element 45B is of the spindle type, and it is applied perpendicularly to the outer peripheral surface of the coupling part in the central direction of the rotation axis for measurement.

[0035] The computer 17 has a function of displaying the measurement data sent from the digital dial gauges 44A and 44B on the monitor 18, and issuing a warning display on the monitor 18 when the measurement data is larger than a predetermined reference value. The monitor 18 is connected to the computer 17, and the measurement data of the digital dial gauges 44A and 44B output from this computer 17 is displayed. In the example shown in FIG. 5, the computer 17 is composed of a notebook computer with the monitor 18 attached.

[0036] FIG. 6 shows an example of the display on the monitor 18. In FIG. 6, the circles schematically show the outer peripheral edges of the coupling parts 15A and 15B, and the white arrow in the center indicates the water flow direction of the pump 12. As will be described later, since the axial center adjustment state is measured at 90° intervals in the circumferential direction of the coupling parts 15A and 15B by both digital dial gauges 44A and 44B, the measurement data display parts 51 are arranged at 90° intervals in the circumferential direction. For this reason, similar to FIG. 2, A is added to the measurement data display part 51 for measuring between the axial end faces, and B is added for measuring the outer peripheral surface for distinction.

[0037] That is, the measurement data display parts indicated by 1 to 4 of the reference numeral 51A display the measurement data sent from the digital dial gauge 44A for measuring between the axial end faces, and the measurement data display parts indicated by 1 to 4 of the reference numeral 51B display the measurement data sent from the digital dial gauge 44B for measuring the outer peripheral surface.

[0038] The digital dial gauges 44A and 44B are provided at the coupling part 15A on the output shaft 13 side of the motor 11 as shown in FIG. 2. With the measuring elements 45A and 45B in contact with the coupling part 15B on the rotating shaft 14 side of the pump 12, measurement is performed while rotating the coupling part 15A or both coupling parts 15A and 15B together. Among the display parts 51A and 51B of the monitor 18, it is assumed that the first measurement data is displayed at the position of symbol 1. Thereafter, while rotating the coupling part 15A clockwise, the measurement data is sequentially displayed at positions 2 to 4 of the display part 51A of the monitor 18 and positions 2 to 4 of the display part 51B of the monitor 18.

[0039] In this case, each time measurement is performed with the digital dial gauges 44A and 44B, the error within the reference value of the motor 11 may be adjusted. However, since the coupling part 15A returns to the initial position when it is rotated one full turn at 90° intervals, by checking positions 1 to 4 of each display part 51A of the monitor 18 and positions 1 to 4 of the display part 51B in that state, it is possible to grasp in which direction adjustment should be made, and the work of checking the shaft alignment state can be facilitated.

[0040] Also, in each measurement data display part 51, a warning display part 52 is formed in a frame shape so as to surround it, and when the measurement data becomes equal to or greater than the reference value, the warning display part 52 issues a warning, for example, by being displayed in red. This warning display part 52 is displayed in red when the measurement data exceeds the reference value, but the color may be changed in multiple stages depending on the magnitude of the measurement data.

[0041] The reference for this measurement data can be appropriately changed by the computer 17 according to the sizes of the motor 11, the pump 12, the coupling part 15, etc. Also, in addition to the warning display part 52, a function for emitting a warning sound may be provided.

[0042] For misalignment, there are parallel eccentricity where the axes are displaced parallel to each other, face opening (deviation angle) where the angles are displaced, and a state in which these are combined. In this embodiment, for example, warning is displayed when any misalignment becomes 5 / 100 (0.05) mm or more.

[0043] In this embodiment, an example of a vertical shaft pump is described as the pump. However, the pump may be a pump other than the vertical shaft pump, for example, a horizontal shaft pump. In the case of a horizontal shaft pump, the output shaft of the motor and the rotation shaft of the pump are arranged horizontally and connected by a coupling portion. Then, using the measuring device of the present invention, the inclination of the shaft and the vertical displacement orthogonal to the shaft are adjusted.

[0044] (Installation adjustment method of motor and pump) Next, a method for installing and adjusting the motor 11 and the pump 12 using the shaft alignment measuring device 10 will be described. While aligning with the opening hole 23 of the foundation 22 on the lower floor, the pump 12 is horizontally installed on the foundation 22, and the suction pipe 26 and the discharge pipe 27 are connected. On the other hand, the motor 11 is arranged on the foundation 21 on the upper floor, horizontally installed, and then the output shaft 13 of the motor 11 and the rotation shaft 14 of the pump 12 are connected by a coupling portion 15.

[0045] During the connection operation of the output shaft 13 and the rotation shaft 14 by this coupling portion 15, as shown in FIG. 2, for example, a magnetic stand 41 is fixed to the upper surface of one coupling portion 15A, and the measuring elements 45A and 45B of the digital dial gauges 44A and 44B are respectively brought into contact with the shaft end face and the circumferential surface of the other coupling portion 15B. In this case, as described above, the measuring elements 45A and 45B of both digital dial gauges 44A and 44B are installed so as to be in contact with each other with reference to the direction in which the discharge pipe 27 of the pump 12 extends. As shown in FIG. 2, the two digital dial gauges 44A and 44B are fixed only to one coupling portion 15A, and while the coupling portion 15A or both coupling portions 15A and 15B are rotated in the circumferential direction with the measuring elements 45A and 45B in contact with the other coupling portion 15B, measurements are taken at 90° intervals.

[0046] The measurement data of both digital dial gauges 44A and 44B are collected and stored in the computer 17, processed through calculation, and then displayed on the monitor 18. The operator adjusts the axial center adjustment state of the coupling parts 15A and 15B while visually checking this monitor 18 and confirming the axial center adjustment state numerically.

[0047] Since a total of 8 measurement data (2 for each of the 4 locations in the circumferential direction) are all displayed on the monitor 18, the operator can simultaneously check the axial center adjustment state of the coupling parts 15A and 15B on one screen of the monitor 18, facilitating the measurement work of the axial center adjustment state and the confirmation work of this measurement data, and making the axial center adjustment work (centering work) accurate.

[0048] This axial center adjustment can be performed by moving the base plate 64 in the horizontal center direction using any one or a plurality of the 4 adjustment screw jacks 68 of the base plate receiving seat 66 on the gantry 63 on which the base plate 64 of the motor 11 is placed. Also, when there is an inclination in the coupling parts 15A and 15B, it can be adjusted by inserting a spacer, shim, or liner material (not shown) at an appropriate location in the circumferential direction between the base plate 64 and the gantry 63. After adjusting so that the 8 measurement data fall within the reference values, the base plate 64 of the motor 11 is fixed to the base plate receiving seat 66. After confirming the rotation direction of the motor 11, the coupling parts 15A and 15B are connected.

[0049] As described above, in this installation adjustment method, with two digital dial gauges 44A and 44B fixed to one of the coupling parts 15A and 15B, the measuring elements 45A and 45B are brought into contact with the other coupling part, and after collecting the measurement data in the computer 17, it is displayed on the monitor 18. By performing this operation four times while rotating one or both of the coupling parts 15A and 15B by 90° each in the circumferential direction, without directly visually observing the digital dial gauges 44A and 44B of the coupling parts 15A and 15B, the axis adjustment state including the inclination of the coupling parts 15A and 15B can be confirmed via the monitor 18. Therefore, the operation of confirming the axis adjustment state becomes easier, and even when the pump 12 is large-sized, while visually recognizing the axis adjustment state of the coupling parts 15A and 15B on the monitor 18, the inclination and misalignment of the axis in each direction can be simultaneously confirmed and adjusted to accurately adjust the axis.

[0050] In this case, by measuring in four directions based on the flow path direction of the discharge port of the pump 12, the axis in the four directions can be adjusted, highly accurate measurement of the coupling parts 15A and 15B becomes possible, and the pumps can be adjusted and installed with high accuracy based on the direction of the discharge port. Also, since warning display is provided when the measurement data of the digital dial gauges 44A and 44B exceeds the reference value, visual confirmation can be performed more simply and reliably, the confirmation operation becomes easier, and the operations from the measurement work to the adjustment work can be performed as safe operations.

[0051] As described above, the specific configuration of the present invention is not limited to the above-described embodiment, and design changes and the like are possible without departing from the gist of the present invention. A magnetic stand was used to fix the digital dial gauge to the coupling part, but in addition to fixing by magnetic force, it may be fixed by a clamp or the like. Also, although the combination of a vertical shaft pump and its motor was shown in the embodiment, of course, it is also applicable when connecting a horizontal shaft pump and a motor via a coupling part. Furthermore, it can be applied not only to pumps and motors but also to other rotating machines such as hydraulic generators composed of water wheels and generators. In the case of a hydraulic generator, for example, a water wheel is installed on the lower base 21 in FIG. 1, and a generator is installed on the upper base 22. The water wheel is the driving device and the generator is the driven device. Then, the water wheel is fixed to the lower base 21, the base plate of the generator is placed on the pedestal of the upper base 22 and temporarily fixed. In this state, after performing the above-mentioned axial center adjustment work on the coupling part connecting the shaft of the water wheel and the shaft of the generator, the generator is fixedly installed and the coupling part is fixed. The rotating machine is not limited to the case where the drive is hydraulic power. It can be applied to equipment having prime movers that are rotationally driven by various energies such as engines and electric motors. For example, it can be widely applied to the axial center adjustment in the coupling part that connects the driving shaft and the driven shaft in various machines such as between the prime mover and the speed reducer.

[0052] Furthermore, the monitor screen is not limited to the example shown in FIG. 6, and may be configured as shown in FIG. 7, for example. In the monitor 60 shown in FIG. 7, the measured values of the digital dial gauges are displayed in two upper and lower rows at 90° intervals around the circle indicating the coupling part. In both cases, A to D in the lower row are the measured data of the outer peripheral surface, and E to H in the upper row are the measured data between the shaft end faces. For example, the measured data of the outer peripheral surface is displayed in orange and the measured data between the shaft end faces is displayed in green. When the measured data deviates from the reference value, the displayed numerical value may be changed to red. In FIG. 7, reference numeral 61 indicates buttons for various settings, reference numeral 62 indicates buttons for starting and stopping measurement, and reference numeral 63 indicates buttons for saving the displayed data, all of which are configured as touch switches.

Description of Reference Numerals

[0053] 10 Axial Center Adjustment Measuring Device 11 Motor (Hydraulic Machine: Driving Device) 12 Pump (Hydraulic Machine: Driven Device) 13 Output Shaft (Driving Shaft) 14 Rotating Shaft (Driven Shaft) 15, 15A, 15B coupling parts 17 computer 18 monitor 26 suction pipe 27 discharge pipe 41 magnet stand 42 support column 43 arm 44A, 44B digital dial gauge 45A, 45B measuring element 51, 51A, 51B measurement data display section 52 warning display section 60 monitor

Claims

1. An apparatus for measuring the axial alignment state between a pair of coupling parts that connect the shaft on the driving side and the shaft on the driven side of a rotating machine, comprising: a plurality of digital dial gauges fixed to one of the coupling parts and capable of contacting a measuring element with the other of the coupling parts; a computer that collects the measurement data of these digital dial gauges; and a monitor on which the measurement data of the digital dial gauges is displayed by this computer. The axial alignment measuring apparatus for a coupling part is characterized by having these components.

2. The axial alignment measuring apparatus for a coupling part according to Claim 1, wherein at least one digital dial gauge is provided for measuring between the axial end faces of the coupling part and at least one digital dial gauge is provided for measuring the outer peripheral surface.

3. The axial alignment measuring apparatus for a coupling part according to Claim 1, wherein the computer causes the monitor to display the measurement data of each of the plurality of digital dial gauges.

4. The axial alignment measuring apparatus for a coupling part according to Claim 1, wherein the computer has a function of displaying a warning on the monitor when the inclination or displacement of the axis of the coupling part is greater than a predetermined reference value.

5. The axial alignment measuring apparatus for a coupling part according to Claim 1, wherein the digital dial gauge has a communication function for wirelessly communicating measurement data to the computer.

6. The axial alignment measuring apparatus for a coupling part according to Claim 1, wherein a plurality of measurement data display parts for displaying the measurement data are provided on the monitor corresponding to the measurement positions in the outer peripheral direction of the shaft, and there are a plurality of them for between the axial end faces and for the outer peripheral surface.

7. The axial alignment measuring apparatus for a coupling part according to Claim 1, wherein the digital dial gauge has a communication function for wirelessly communicating measurement data to the computer.

8. When installing the driving device and the driven device of a rotating machine respectively, a plurality of digital dial gauges are fixed to one side of a coupling portion that connects the shafts of the driving device and the driven device, and the measuring heads of the digital dial gauges are brought into contact with the other side of the coupling portion. The measurement data of these digital dial gauges is collected by a computer, and while the collected measurement data is being displayed on a monitor, the axis of the coupling portion is adjusted to install the driving device and the driven device. A method for installing and adjusting a rotating machine, characterized by the above.

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