JP6822994B2 - Bearing adjustment support device and bearing adjustment support method - Google Patents

Description

An embodiment of the present invention relates to a bearing adjustment support device and a bearing adjustment support method that support adjustment of a bearing clearance to a design value.

The clearance between the rotating shaft and the bearing (that is, the bearing clearance) of a conventional bearing incorporated in an actual machine, particularly a bearing having a tilting pad, may differ significantly from the design value depending on the adjusted state. In addition, the bearing clearance of a cylindrical bearing or a bearing having a similar shape may differ significantly from the design value due to manufacturing errors, wear generated after operation, or the like.

On the other hand, there is an invention in which an external force is applied to a bearing, a rotational load torque is measured, and the clearance between the rotor and the cylinder inside the rotary compressor pump is adjusted to forcibly center the rotating shaft (Patent Document 1). In the present invention, the clearance between the rotating shaft and the bearing (that is, the bearing clearance) is not calculated when the rotating shaft is centered.

In addition, a displacement meter is installed near the bearing to measure the distance of the rotating shaft, and the rotating shaft that is stopped is moved so as to be pressed against the bearing, and the movement when the rotating shaft is brought into contact with the entire inner surface of the bearing. There is an invention in which the clearance between the rotating shaft and the bearing (that is, the bearing clearance) can be grasped from the locus on the entire circumference of the bearing (Patent Document 2). According to the present invention, the bearing clearance can be grasped in the state where the bearing is incorporated in the actual machine, and the centering accuracy of the rotating shaft can be improved by fixing and setting the rotating shaft at the center position of the moving locus. ..

Japanese Unexamined Patent Publication No. 9-250476 Japanese Unexamined Patent Publication No. 2005-326155

By the way, the adjustment of the clearance between the rotating shaft and the bearing (that is, the bearing clearance) needs to be performed by the bearing alone before the bearing is incorporated into the actual machine. If the bearing clearance in the bearing before being installed in the actual machine is different from the design value, if it is installed in the actual machine as it is, the vibration of the rotating shaft may exceed the specified value. The invention described in Patent Document 2 is intended to set the rotating shaft at the center position of the bearing, and is not intended to adjust the bearing clearance in the bearing.

An embodiment of the present invention has been made in consideration of the above circumstances, and provides a bearing adjustment support device and a bearing adjustment support method capable of accurately adjusting the bearing clearance of the bearing to a design value at the time of assembling a single bearing. The purpose is to do.

The bearing adjustment support device according to the embodiment of the present invention is a bearing adjustment support device that supports adjustment of the bearing clearance between the rotating shaft inserted into the bearing and the bearing, and is inserted into the simulated rotating shaft and the bearing. A moving means for moving the simulated rotating shaft in the radial direction, a displacement measuring means installed at different positions in the circumferential direction of the bearing and measuring the radial displacement of the simulated rotating shaft moved by the moving means, and a displacement measuring means. The recording means for recording the measured value of the displacement measuring means and the measured value recorded by the recording means are displayed as a movement locus of the simulated rotation axis using coordinates on a plane perpendicular to the central axis of the bearing. From the display means to be displayed and the movement locus of the simulated rotation shaft displayed by the display means, a determination means for calculating the clearance between the simulated rotation shaft and the bearing at a plurality of positions in the circumferential direction of the bearing as the bearing clearance, respectively. It is characterized in that it is configured to have.

The bearing adjustment support method according to the embodiment of the present invention is a bearing adjustment support method that supports adjustment of the bearing clearance between the rotating shaft inserted into the bearing and the bearing, and the bearing clearance is set to the outer diameter of the rotating shaft. A bearing clearance setting process in which a clearance setting jig having a dimension having a design value added as an outer diameter is inserted into the bearing and the bearing clearance of the bearing is set to a design value using the clearance setting jig. The simulated rotation shaft moving step of moving the simulated rotation shaft in the radial direction after inserting the simulated rotation shaft into the bearing instead of the clearance setting jig, and the simulated rotation shaft at different positions in the circumferential direction of the bearing. The displacement measurement / recording process of the simulated rotating shaft that measures the radial displacement of the bearing and records the measured value, and the measured value recorded in the displacement measurement / recording process of the simulated rotating shaft are used as the central axis of the bearing. From the movement locus display step of the simulated rotation axis displayed as the movement locus of the simulated rotation axis using the coordinates on the plane perpendicular to the bearing and the movement locus of the simulated rotation axis, the simulated rotation at a plurality of positions in the circumferential direction of the bearing. It is characterized by performing a bearing clearance calculation step of calculating the clearance between the shaft and the bearing as the bearing clearance, respectively.

According to the embodiment of the present invention, the bearing clearance of the bearing can be accurately adjusted to the design value when the bearing is assembled as a single body.

The plan view which shows the bearing adjustment support device which concerns on one Embodiment. The side view which shows the bearing adjustment support device of FIG. A case where a clearance setting jig is used instead of the simulated rotation shafts of FIGS. 1 and 2, (A) is a plan view, and (B) is a side view. The plan view which shows the detailed structure of the clearance setting jig of FIG. When the bearing clearance conforms to the design value, the movement locus of the simulated rotation axis displayed on the display means of FIG. 1 is shown, (A) is a display screen view mainly showing the movement locus, and (B) is a display screen view. FIG. 5 (A) is an explanatory view showing the contour of the inner surface of the bearing. When the bearing clearance does not conform to the design value, the movement locus of the simulated rotation axis displayed on the display means of FIG. 1 is shown, (A) is a display screen view mainly showing the movement locus, and (B) is FIG. Explanatory drawing which shows contour of bearing inner surface from (A). The flowchart which shows the bearing adjustment support method which concerns on this embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
FIG. 1 is a plan view showing the bearing adjustment support device of the present embodiment. Further, FIG. 2 is a side view showing the bearing adjustment support device of FIG. 1. The bearing adjustment support device 10 in FIGS. 1 and 2 supports the setting and adjustment of the bearing clearance, which is the clearance between the rotating shaft (not shown) inserted into the bearing 11 and rotationally supported and the bearing 11. , Base plate 20, clearance setting jig 21 (FIG. 3), simulated rotating shaft 22 (FIGS. 1 and 2), moving means 23 (FIG. 3), deformation measuring means 24 (FIGS. 1 and 2), recording means 25. , Display means 26, and determination means 27.

Here, the bearing 11 rotates and supports the rotating shaft, and constitutes a rotating machine together with the rotating shaft. The bearing 11 is a tilting pad bearing or a bearing having a cylindrical shape or a similar shape. In the present embodiment, the tilting pad bearing is shown as an example.

The bearing (tilting pad bearing) 11 has a plurality of (for example, 6) bearing pads 13 arranged at a plurality of equidistant positions in the circumferential direction of the inner circumference of the bearing ring 12, for example, 6 equal distribution positions. Each bearing pad 13 is screwed to the bearing ring 12 using a pad push bolt 14. The bearing pad 13 is provided to the bearing ring 12 so as to be adjustable in the radial direction of the bearing ring 12 by screwing or unscrewing the pad pushing bolt 14.

The base plate 20 holds the bearing ring 12 of the bearing 11 in a fixed state at a predetermined position by, for example, fitting it when setting and adjusting the bearing clearance. Further, the base plate 20 holds the clearance setting jig 21 (FIG. 3) in a fixed state so that its central axis O coincides with the central axis P of the bearing ring 12 when the bearing clearance is set. Further, the base plate 20 slides the simulated rotating shaft 22 (FIGS. 1 and 2) in the radial direction R of the simulated rotating shaft 22 perpendicular to the central axis Q when adjusting the bearing clearance.

The clearance setting jig 21 shown in FIG. 3 is a bearing formed by inserting a simulated rotating shaft 22 (FIGS. 1 and 2) into a bearing 11 in which a bearing ring 12 is held in a fixed state on a base plate 20. It is used when setting the bearing clearance, which is performed before adjusting the clearance. That is, when the bearing clearance is set, the clearance setting jig 21 is inserted into the bearing 11 in which the bearing ring 12 is held in the fixed state on the base plate 20, and is similarly held in the base plate 20 in the fixed state. Is used to set the bearing clearance of the above to a preset design value. Therefore, the clearance setting jig 21 is configured with a dimension obtained by adding the design value of the bearing clearance to the outer diameter of the rotating shaft inserted into the bearing 11 as the outer diameter. The bearing clearance of the bearing 11 is set to the design value by contacting the bearing pad 13 of the bearing 11 in which the bearing ring 12 is fixed to the base plate 20 with the outer peripheral surface (outer diameter) of the clearance setting jig 21. Will be done.

Further, as shown in FIG. 4, the clearance setting jig 21 has a plurality of (for example, 6) arm portions corresponding to the number of bearing pads 13 of the bearing 11 on the outer peripheral portion of the cylindrical jig main body 28. 29s are arranged at equal intervals in the circumferential direction of the jig main body 28. Each arm portion 29 is provided so as to be in contact with the bearing pad 13 of the bearing 11, and its length is stretchable in the radial direction of the jig body 28 (that is, the adjustment direction of the bearing pad 13 with respect to the bearing ring 12). Be done. A circle connecting the tip portions of the plurality of arm portions 29 constitutes the outer diameter of the clearance setting jig 21. When setting the bearing clearance of the bearing 11, the bearing clearance of the bearing 11 is set to the design value by the bearing pad 13 of the bearing 11 coming into contact with the tip of the arm portion 29 of the clearance setting jig 21.

The simulated rotating shaft 22 shown in FIGS. 1 and 2 is formed in a cylindrical or cylindrical shape having the same outer diameter as the rotating shaft (not shown) rotationally supported by the bearing 11. The simulated rotating shaft 22 is inserted into the bearing 11 in which the bearing ring 12 is held in a fixed state on the base plate 20 when the bearing clearance is adjusted after the bearing clearance of the bearing 11 is set. At this time, the simulated rotation shaft 22 is slidably mounted on the base plate 20 in the radial direction R of the simulated rotation shaft 22 perpendicular to the central axis Q.

As shown in FIG. 2, the moving means 23 moves the simulated rotating shaft 22 inserted into the bearing 11 and slidably held by the base plate 20 in the radial direction R of the simulated rotating shaft 22 as described above. Is. By the moving means 23, the simulated rotating shaft 22 moves in contact with all six bearing pads 13 of the bearing 11.

As shown in FIGS. 1 and 2, the displacement measuring means 24 is located at a position different in the circumferential direction of the bearing 11 on the bearing ring 12 (bearing ring 12 in this embodiment) of the base plate 20 or the bearing 11, for example, in the circumferential direction of the bearing 11. It is installed at positions in two orthogonal directions. Then, the displacement measuring means 24 measures the displacement of the simulated rotating shaft 22 that slides by the moving means 23 in the radial direction R. The displacement measuring means 24 is preferably a non-contact sensor or a contact sensor such as an eddy current type or a laser type.

The recording means 25 takes in the measured value measured by the displacement measuring means 24, performs A / D conversion to obtain a digital signal, and records the measured value as waveform data.

The display means 26 uses the measured values recorded by the recording means 25 as the movement locus 30 of the central axis Q of the simulated rotation shaft 22 by using the coordinates on the plane perpendicular to the central axis P of the bearing ring 12 of the bearing 11. indicate. Examples of the moving locus 30 and the contour 31 of the inner surface of the bearing 11 estimated from the moving locus 30 are shown in FIGS. 5 and 6. Since the simulated rotating shaft 22 slides in contact with the bearing pad 13 in the bearing 11, the contour 31 becomes hexagonal when there are six bearing pads 13. When the bearing clearance of the bearing 11 conforms to the design value (described later), the contour 31 of the inner surface of the bearing 11 has a shape similar to a regular hexagon as shown in FIG. 5, and the bearing clearance of the bearing 11 is the design value. If it does not conform to the above, it becomes a vertically long hexagon that deviates from the regular hexagon as shown in FIG.

First, the determination means 27 obtains the contour 31 of the inner surface of the bearing 11 from the movement locus 30 of the simulated rotation shaft 22 displayed on the display means 26. Next, the determination means 27 determines the clearance between the simulated rotating shaft 22 and the bearing 11 at a plurality of positions in the circumferential direction of the bearing 11 from the contour 31 of the inner surface of the bearing 11, respectively, and the clearance between the rotating shaft (not shown) and the bearing 11, respectively. (That is, it is calculated as bearing clearance). Specifically, the distance between the bearing pads 13 facing each other (distance between pads 32) is obtained from the contour 31 of the inner surface of the bearing 11 at a plurality of locations, for example, three locations (distances between pads 32A, 32B, 32C). Based on the difference between the pad-to-pad distances 32A, 32B, 32C and the outer diameter dimension of the simulated rotating shaft 22, the clearance between the simulated rotating shaft 22 and the bearing pad 13 of the bearing 11 is calculated, and these clearances are used for the bearing 11. Obtained as bearing clearance.

Further, the determination means 27 compares each bearing clearance of the bearing 11 calculated at a plurality of positions (three locations) in the circumferential direction of the bearing 11 with a preset design value as described above, and the bearing clearance is the design value. Judge whether or not it conforms to. For example, when each bearing clearance of the bearing 11 is calculated from the pad-to-pad distances 32A, 32B, and 32C in the contour 31 of FIG. 5, it is determined by the determination means 27 that the bearing 11 conforms to the design value. On the other hand, when each bearing clearance of the bearing 11 is calculated from the pad-to-pad distances 32A, 32B, 32C in the contour 31 of FIG. 6, the pad-to-pad distance of FIG. 6 is longer than the pad-to-pad distances 32A, 32B of FIG. The determination means 27 determines that the bearing clearance calculated from 32A and 32B does not conform to the design value.

Then, in order to make the bearing clearance that does not conform to the design value conform to the design value, the determination means 27 identifies the bearing pad 13 corresponding to the non-conforming bearing clearance and displays it on the display means 26, and the specified bearing pad The adjustment amount of 13 is calculated and displayed on the display means 26. For example, the determination means 27 identifies the bearing pad 13 corresponding to the non-conforming bearing clearance calculated from the pad-to-pad distances 32A and 32B in FIG. 6B, displays it on the display means 26, and displays the specified bearing pad. The adjustment amount of 13 is calculated based on the difference between the pad-to-pad distances 32A and 32B in FIG. 6B and the design value, and is displayed on the display means 26.

The bearing adjustment support method will be described with reference to FIG. 7 by using the bearing adjustment support device 10 configured as described above.
After assembling the bearing 11 as a single unit and before assembling the bearing 11 to the actual machine (actual machine or device), the bearing ring 12 of the bearing 11 is attached to the bearing adjustment support device 10 as shown in FIG. It is held in a fixed state on the base plate 20. Next, the clearance setting jig 21 is inserted into the bearing 11, and the clearance setting jig 21 is used for clearance setting in a state where the central axis O of the clearance setting jig 21 is aligned with the central axis P of the bearing ring 12 of the bearing 11. The jig 21 is held in a fixed state on the base plate 20. In this state, the bearing clearance setting step of setting the bearing clearance of the bearing 11 to the design value by the clearance setting jig 21 is carried out as follows (S1).

That is, as shown in FIGS. 3 and 4, by screwing the pad push bolt 14 of the bearing 11 in which the bearing ring 12 is held in the base plate 20 in a fixed state, the bearing pad 13 is moved to the clearance setting jig 21. The bearing clearance of the bearing 11 is set to the design value by abutting the tip of the arm portion 29. After this setting, the arm portion 29 of the clearance setting jig 21 is contracted to separate from the bearing pad 13, and in this state, the clearance setting jig 21 is removed from the base plate 20 and the bearing 11 to obtain the bearing clearance of the bearing 11. The setting is completed.

Next, as shown in FIGS. 1 and 2, a simulated rotary shaft 22 is inserted into the bearing 11 in which the bearing ring 12 is fixed to the base plate 20 in place of the clearance setting jig 21, and this simulation is performed. A simulated rotary shaft moving step of sliding (moving) the rotary shaft 22 in the radial direction R of the simulated rotary shaft 22 by the moving means 23 is performed (S2).

Next, after the bearing clearance setting step of step S1 is completed, the displacement in the radial direction R of the simulated rotating shaft 22 is measured by using the displacement measuring means 24 installed at the position orthogonal to the circumferential direction in the bearing ring 12, and this displacement measured value. Is A / D converted and recorded as waveform data in the recording means 25, the displacement measurement / recording step of the simulated rotation axis is carried out (S3).

After the displacement measurement / recording step of the simulated rotating shaft in step S3, the displacement measured value of the simulated rotating shaft 22 recorded in the recording means 25 is perpendicular to the central axis P of the bearing ring 12 of the bearing 11 by the display means 26. The movement locus display step of the simulated rotation axis 22 to be displayed as the movement locus 30 (for example, FIGS. 5A and 6A) of the simulated rotation shaft 22 is carried out using the coordinates on the plane (S4).

Next, the bearing clearance calculation step in the bearing 11 is carried out as follows from the movement locus 30 of the simulated rotating shaft 22 displayed on the display means 26 (S5). That is, the determination means 27 obtains the contour 31 (FIGS. 5 (B) and 6 (B)) of the inner surface of the bearing 11 from the movement locus 30 of the simulated rotating shaft 22 displayed on the display means 26, and the contour 31 The distance 32 between the pads between the bearing pads 13 facing each other is obtained at a plurality of locations. Then, the determination means 27 calculates the clearance between the simulated rotating shaft 22 and the bearing 11 obtained based on the difference between the distance between the pads 32 and the outer diameter of the simulated rotating shaft 22 as the bearing clearance of the bearing 11.

Then, based on the bearing clearance calculated in step S5, the bearing clearance adjustment support step that supports the adjustment of the bearing clearance in order to make the non-conforming bearing clearance that does not conform to the design value conform to the design value is as follows. (S6).

That is, the determination means 27 compares each bearing clearance calculated in step S5 with the design value, and determines whether or not each bearing clearance conforms to the design value. Then, in order to make the non-conforming bearing clearance conform to the design value, the determination means 27 includes a bearing pad 13 corresponding to the non-conforming bearing clearance, for example, a bearing pad 13 corresponding to the pad-to-pad distances 32A and 32B in FIG. 6B. Is specified and displayed on the display means 26, and the adjusted amount of the specified bearing pad 13 (for example, a value corresponding to the difference between the pad-to-pad distances 32A and 32B in FIG. 6B and the outer diameter of the simulated rotating shaft 22). ) Is calculated and displayed on the display means 26.

After the completion of the bearing clearance adjustment support step (S6) described above, the bearing pad 13 of the bearing 11 is adjusted based on the non-conforming bearing pad 13 displayed on the display means 26 and the adjustment amount thereof, whereby the bearing 11 is adjusted. The bearing clearance will be adjusted exactly to the design value.

Since it is configured as described above, the following effects (1) and (2) are obtained according to the present embodiment.
(1) As shown in FIGS. 1 and 2, a simulated rotary shaft 22 having the same outer diameter as the rotary shaft (not shown) inserted in the bearing 11 is inserted into the bearing 11, and the simulated rotary 22 is inserted into the bearing 11. The moving means 23 slides the simulated rotation 22 in the radial direction R (that is, the radial direction of the bearing ring 12 of the bearing 11), and the determination unit 27 determines from the moving locus 30 of the simulated rotation shaft 22 displayed on the display means 26. The clearance between the simulated rotating shaft 22 and the bearing 11 at a plurality of positions in the circumferential direction of 11 is configured to be calculated as the bearing clearance.

Further, in the case of the bearing 11 in which a plurality of bearing pads 13 in the circumferential direction of the inner circumference of the bearing 11 are provided so as to be adjustable in the radial direction of the bearing ring 12, the determination unit 27 is located at a plurality of positions in the circumferential direction of the bearing 11. It is determined whether or not each of the calculated bearing clearances conforms to the design value, and the bearing pad 13 corresponding to the non-conforming bearing clearance is specified and displayed so that the non-conforming bearing clearance conforms to the design value. The adjustment amount of the specified bearing pad 13 is calculated and displayed on the display means 26 to support the adjustment of the bearing clearance to the design value. Therefore, when the bearing 11 is assembled as a single unit, the bearing clearance of the bearing 11 can be accurately adjusted to the design value.

(2) The clearance setting jig 21 used when setting the bearing clearance of the bearing 11 to the design value has an arm portion 29 on the outer peripheral portion of the cylindrical or cylindrical jig main body 28, and the radius of the jig main body 28. It is configured to expand and contract in the direction (that is, the adjustment direction of the bearing pad 13 with respect to the bearing ring 12).

When a cylindrical or cylindrical clearance setting jig is simply inserted into the bearing 11 in which the bearing ring 12 is fixed to the base frame 20, the bearing pad 13 of the bearing 11 is used for the clearance setting. After setting the bearing clearance of the bearing 11 by contacting the outer peripheral surface of the tool, when removing the clearance setting jig from the bearing 11 and the base plate 20, the pad push bolt 14 of the bearing 11 is loosened to clear the bearing pad 13. It must be separated from the setting jig. Alternatively, when setting the bearing clearance, it is necessary to prevent the bearing pad 13 of the bearing 11 from coming into contact with the clearance setting jig. Therefore, the bearing clearance of the bearing 11 cannot be accurately set to the design value, and the bearing clearance varies.

On the other hand, in the clearance setting jig 21 of the present embodiment, the arm portion 29 is provided so as to be expandable and contractible in the adjustment direction of the bearing pad 13 with respect to the bearing ring 12, so that the bearing 11 is provided when the bearing clearance of the bearing 11 is set. The bearing pad 13 of the above is brought into contact with the tip of the arm portion 29 of the clearance setting jig 21 to set the bearing clearance to the design value, and then the arm portion 29 of the clearance setting jig 21 is contracted to set the clearance. The jig 21 can be removed. As a result, the bearing clearance can be set accurately.

Although the embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention, and the replacements and changes thereof can be made. , It is included in the scope and gist of the invention, and is also included in the scope of the invention described in the claims and the equivalent scope thereof.

10 ... Bearing adjustment support device, 11 ... Bearing, 13 ... Bearing pad, 21 ... Clearance setting jig, 22 ... Simulated rotating shaft, 23 ... Moving means, 24 ... Displacement measuring means, 25 ... Recording means, 26 ... Display means , 27 ... determination means, 29 ... arm portion, 30 ... movement locus.

Claims (6)

A bearing adjustment support device that assists in adjusting the bearing clearance between the rotating shaft inserted into the bearing and the bearing.
Simulated rotation axis and
A moving means for moving the simulated rotating shaft inserted in the bearing in the radial direction, and
Displacement measuring means, which is installed at different positions in the circumferential direction of the bearing and measures the radial displacement of the simulated rotating shaft moved by the moving means, and
A recording means for recording the measured value of the displacement measuring means and
A display means for displaying the measured values recorded by the recording means as a movement locus of the simulated rotation axis using coordinates on a plane perpendicular to the central axis of the bearing.
It has a determination means for calculating the clearance between the simulated rotation shaft and the bearing at a plurality of positions in the circumferential direction of the bearing as the bearing clearance from the movement locus of the simulated rotation shaft displayed by the display means. A bearing adjustment support device characterized by being configured. The bearing is provided with bearing pads at a plurality of positions along the circumferential direction of the inner circumference thereof so as to be adjustable in the radial direction of the bearing.
The determination means compares each bearing clearance calculated at a plurality of positions in the circumferential direction of the bearing with a preset design value, and determines whether or not each bearing clearance conforms to the design value. In order to adjust the non-conforming bearing clearance to the design value, the bearing pad corresponding to the non-conforming bearing clearance is specified and displayed on the display means, and the adjustment amount of the specified bearing pad is calculated and described. The bearing adjustment support device according to claim 1, wherein the bearing adjustment support device is configured to be displayed on a display means. It has a clearance setting jig whose outer diameter is the sum of the outer diameter of the rotating shaft and the design value of the bearing clearance.
The claim is characterized in that the clearance setting jig is inserted into the bearing before the simulated rotary shaft is inserted into the bearing and is used to set the bearing clearance of the bearing to a design value. Item 2. The bearing adjustment support device according to Item 1 or 2. The bearing is provided with bearing pads at a plurality of positions along the circumferential direction of the inner circumference thereof so as to be adjustable in the radial direction of the bearing.
3. The clearance setting jig includes an arm portion, and the arm portion is provided in contact with the bearing pad and its length can be expanded and contracted in the adjusting direction of the bearing pad. The bearing adjustment support device described in 1. This is a bearing adjustment support method that supports the adjustment of the bearing clearance between the rotating shaft inserted into the bearing and the bearing.
A clearance setting jig having the outer diameter obtained by adding the design value of the bearing clearance to the outer diameter of the rotating shaft is inserted into the bearing, and the bearing clearance of the bearing is determined by using the clearance setting jig. Bearing clearance setting process to set the design value and
A simulated rotary shaft moving step of moving the simulated rotary shaft in the radial direction after inserting the simulated rotary shaft into the bearing in place of the clearance setting jig.
The displacement measurement / recording process of the simulated rotating shaft, which measures the radial displacement of the simulated rotating shaft at different positions in the circumferential direction of the bearing and records the measured value,
The movement locus of the simulated rotation shaft that displays the measured value recorded in the displacement measurement / recording process of the simulated rotation shaft as the movement locus of the simulated rotation axis using the coordinates on the plane perpendicular to the central axis of the bearing. Display process and
Bearing adjustment characterized by performing a bearing clearance calculation step of calculating the clearance between the simulated rotating shaft and the bearing at a plurality of positions in the circumferential direction of the bearing as the bearing clearance from the movement locus of the simulated rotating shaft. Support method. The bearing is provided with bearing pads at a plurality of positions along the circumferential direction of the inner circumference thereof so as to be adjustable in the radial direction of the bearing.
Each bearing clearance calculated in the bearing clearance calculation step is compared with a preset design value to determine whether or not each bearing clearance conforms to the design value, and the non-conforming bearing clearance is referred to as the bearing clearance. In order to conform to the design value, the bearing clearance adjustment support step further comprises specifying and displaying the bearing pad corresponding to the non-conforming bearing clearance, and calculating and displaying the adjustment amount of the specified bearing pad. The bearing adjustment support method according to claim 5, characterized in that.

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