JP2020094625A - Rotary body supporting device, rotary machine, and rotary machine operation method - Google Patents

Abstract

To perform alignment adjustment during an operation without stopping and decomposing a rotary machine.SOLUTION: A rotary body supporting device 12 has a bearing device 13 supporting a rotary body 11 rotatably about a horizontal rotating shaft a, a supporting member 14 for supporting the bearing device 13, and a plurality of height adjustment plates 22 disposed between the bearing device 13 and the supporting member 14 at least at two positions horizontally holding the rotary shaft a, to transmit a load of the bearing device 13 to the supporting member 14. A thickness in a vertical direction of the height adjustment plates 22 is gradually increased in accordance with horizontally separating from the rotating shaft a. The bearing device 13 is pressed up by horizontally moving the height adjustment plates 22 to approach the rotating shaft a, and the bearing device 13 is lowered by horizontally moving the height adjustment plates 22 to separate from the rotating shaft a.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to a rotating body supporting device, a rotating machine, and a rotating machine operating method.

A steam turbine used in a large-capacity power plant requires processing of a large amount of steam, and in order to cope with expansion and temperature change and volume change of steam inside the steam turbine, a high pressure part and an intermediate pressure part are required. Generally, it is divided into each section of the low voltage section. When the steam turbine is divided into each section in this way, the rotor of each section is supported by one or two bearings. At this time, the rotors are connected to each other by bolts or the like in the coupling portion, and the power generated in each section is transmitted to finally transmit the rotational power to the generator.

Further, since the steam turbine rotates at high speed, it is known that the fastening method of each rotor has a significant influence on the shaft vibration. Particularly, the shaft vibration of the rotor is an important factor that influences its operating performance, and if excessive shaft vibration occurs, the turbine may not be able to operate. Therefore, the method of fastening the rotor is an important management item in the design and assembly work of the steam turbine.

Furthermore, the fastening method of each rotor needs to be determined in consideration of changes in the rotor state during installation and during operation. Therefore, the position of the bearing that supports each rotor changes variously depending on each state such as installation, vacuum rise, rotation rise, load rise, etc., so it is possible to fully understand the rotor alignment (fastened state). It becomes important.

In the conventional alignment adjustment method, considering the natural flexure of the shaft and the thermal expansion of the bearing support part, the bearing shaft is aligned so that the shaft center of the turbine and the shaft center of the generator match under the load operating condition. The alignment is adjusted by adjusting the height of the supporting portion with a shim or the like.

In the conventional alignment adjustment method, shim adjustment is performed with the goal of alignment under one load operating condition, but the optimum alignment may not be achieved after operation due to various factors. For example, when the temperature changes depending on the season, the degree of vacuum changes, the deformation amount of the low pressure casing changes, the bearing level of the bearing supported by the cone portion of the low pressure casing changes, and the alignment changes. Alternatively, the alignment changes as the level of the ground or foundation changes over time. Alternatively, the optimum alignment may not be achieved due to design values or errors during installation.

On the other hand, in the above-mentioned bearing support device, to adjust with the bearing level adjustment shim, after stopping the turbine, first disassemble the upper half of the bearing stand, then loosen the upper and lower half tightening bolts of the bearing outer ring and loosen the upper half tightening bolt of the bearing outer ring, respectively. Further, there is a problem that the upper half of the bearing and the lower half of the bearing must be disassembled in this order, and the complicated work of replacing the bearing level adjusting shim must be performed.

In addition, the supply of lubricating oil to the bearings must be continued until the casing temperature drops to a certain level, which can normally take several days, during which the bearings cannot be disassembled before alignment correction. There is also a problem that it takes a lot of time.

Furthermore, even if the alignment becomes inadequate during operation and it is necessary to correct the alignment, conventionally it takes a long time to disassemble the bearing and correct the alignment. Since the individual bearings interact with each other, it is necessary to repeatedly make corrections, which requires a very long period of time.

Japanese Patent No. 2619132 JP-A-11-336752

As a prior art to cope with this problem, there is known a technique of adjusting a bearing position by using an actuator. However, according to such a technique, the wiring becomes complicated when the actuator is arranged around the bearing. Further, if the supply of electricity is stopped due to disconnection of the wiring of the actuator, the force for pushing the bearing is lost, alignment cannot be maintained, and operation cannot be continued.

As another prior art, there is known a technique in which a temperature adjusting unit is provided in the bearing support and the alignment is adjusted by controlling the amount of thermal expansion of the support. However, according to such a technique, since it is necessary to keep the required temperature at all times during operation, the energy loss is equivalent to the temperature adjustment. Further, even with this technique, the operation cannot be continued when the energy supply for temperature adjustment is lost.

The embodiment of the present invention has been made in view of the above circumstances, and an object thereof is to enable alignment adjustment during operation without stopping or disassembling the rotating machine.

A rotating body supporting device according to an embodiment of the present invention sandwiches a bearing device that supports a rotating body so as to be rotatable about a horizontal rotating shaft, a supporting member that supports the bearing device, and the rotating shaft in a horizontal direction. A rotary body supporting device having at least two positions, a plurality of height adjusting plates interposed between the bearing device and the supporting member to transmit the load of the bearing device to the supporting member, The thickness of the height adjusting plate in the up-down direction is formed so as to increase with increasing distance from the rotating shaft in the horizontal direction, and the height adjusting plate is moved in the horizontal direction so as to approach the rotating shaft. The bearing device is pushed up, and the bearing device is configured to be lowered by horizontally moving the height adjusting plate away from the rotary shaft.

A rotary machine according to an embodiment of the present invention is a rotary machine including a rotary body rotatable about a horizontal rotation axis, and a rotary body supporting device that rotatably supports the rotary body. The support device includes a bearing device that supports the rotating body, a support member that supports the bearing device, and a position between the bearing device and the support member at at least two positions that horizontally sandwich the rotation shaft. A plurality of height adjusting plates that transmit the load of the bearing device to the supporting member via the interposition, and the thickness of the height adjusting plates in the up-down direction increases as the distance from the rotation axis increases in the horizontal direction. The bearing device is pushed up by moving the height adjusting plate in the horizontal direction so as to approach the rotating shaft, and moves the height adjusting plate in the horizontal direction away from the rotating shaft. Therefore, the bearing device is configured to be lowered.

A rotating machine operating method according to an embodiment of the present invention is an operating method of a rotating machine including a rotating body rotatable about a rotation axis in a horizontal direction, and a rotating body supporting device that rotatably supports the rotating body. The rotating body support device includes a bearing device that supports the rotating body, a support member that supports the bearing device, and the bearing device and the support device at at least two positions that horizontally sandwich the rotating shaft. A plurality of height adjusting plates interposed between the height adjusting plates for transmitting the load of the bearing device to the supporting member, and the thickness of the height adjusting plates in the vertical direction is in the horizontal direction from the rotary shaft. It is formed so that it becomes thicker as it goes away, and the operating method is a rotating step of rotating the rotating body, and a horizontal direction so as to bring the plurality of height adjusting plates closer to the rotating shaft while continuing the rotating step. By pushing up the bearing device, or by moving the plurality of height adjusting plates in the horizontal direction away from the rotating shaft to lower the bearing device, thereby increasing the height of the bearing device. And a height adjusting step for adjusting.

According to the embodiments of the present invention, alignment adjustment can be performed during operation without stopping or disassembling the rotating machine.

1 is a schematic vertical sectional view of a rotary machine according to a first embodiment of the present invention. FIG. 2 is a schematic vertical sectional view showing the configuration of a height adjustment plate drive mechanism in the rotary machine of FIG. 1. FIG. 2 is a schematic plan view showing the arrangement of a height adjustment plate drive mechanism and a positioning block in the rotary machine of FIG. 1. FIG. 6 is a schematic vertical sectional view of a rotary machine according to a second embodiment of the present invention. FIG. 6 is a schematic vertical sectional view of a rotary machine according to a third embodiment of the present invention. FIG. 9 is a schematic vertical sectional view of a rotary machine according to a fourth embodiment of the present invention. The typical top view which shows arrangement|positioning of the height adjustment plate drive mechanism and the positioning block in the rotary machine which concerns on the 5th Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, parts that are the same or similar to each other are assigned common reference numerals, and duplicate explanations are omitted.

[First Embodiment]
FIG. 1 is a schematic vertical sectional view of a rotary machine according to a first embodiment of the present invention. FIG. 2 is a schematic vertical cross-sectional view showing the configuration of the height adjusting plate drive mechanism in the rotary machine of FIG. FIG. 3 is a schematic plan view showing the arrangement of the height adjusting plate drive mechanism and the positioning block in the rotary machine of FIG.

The rotary machine 10 according to the first embodiment is, for example, a steam turbine. The rotating machine 10 includes a rotor (rotating body) 11 and a rotating body supporting device 12 that rotatably supports the rotor 11. The rotor 11 is rotatable about a horizontal rotation axis a. The rotor support device 12 includes a bearing device (bearing) 13 that rotatably supports the rotor 11, a support member 14 that supports the bearing device 13, and a sole plate 15 that supports the support member 14. The sole plate 15 extends horizontally and is supported by a foundation 16 made of concrete, for example.

Here, the direction of the rotation axis a is the X direction, the horizontal direction perpendicular to the X direction is the Y direction, and the upward direction is the Z direction.

The bearing device 13 is formed with two flanges 20 that spread horizontally at positions apart from the rotation axis a on both sides in the horizontal direction (Y direction). Two height adjusting plates 22 are arranged between the bottom surface 20 a of the collar 20 and the upper surface 14 a of the support member 14. The load of the rotor 11 is transmitted to the bearing device 13 and further transmitted to the support member 14 via the height adjusting plate 22. The upper surface 14a of the support member 14 extends horizontally, the bottom surface 22b of the height adjustment plate 22 also extends horizontally, and the upper surface 14a of the support member 14 and the bottom surface 22b of the height adjustment plate 22 are in contact with each other.

The bottom surface 20a of the collar 20 is an inclined surface that rises as it moves away from the rotation axis a in the horizontal direction (Y direction). Further, the upper surface 22a of the height adjusting plate 22 is inclined similarly to the bottom surface 20a of the collar 20 so as to make surface contact with the bottom surface 20a of the collar 20. That is, the height adjusting plate 22 is formed in a wedge shape so that the thickness in the vertical direction increases as the height adjusting plate 22 moves away from the rotation axis a in the horizontal direction.

Height adjustment for driving the height adjustment plate 22 in the horizontal direction (Y direction) so that the height adjustment plate 22 approaches the rotation axis a in the horizontal direction (Y direction) or moves away from the rotation axis a in the horizontal direction. A plate drive mechanism 30 is installed. The bearing device 13 is pushed up by moving the two height adjusting plates 22 so as to approach the rotation axis a in the horizontal direction. Conversely, the bearing device 13 is lowered by moving the two height adjusting plates 22 away from the rotation axis a in the horizontal direction. The structure of the height adjusting plate drive mechanism 30 will be described later with reference to FIGS. 2 and 3.

A lubricating oil supply pipe 33 is arranged inside the support member 14. Further, the bearing device 13 is formed with a lubricating oil supply hole 34 for supplying lubricating oil to the sliding portion between the bearing device 13 and the rotor 11. The lubricating oil supply pipe 33 and the lubricating oil supply hole 34 are connected by a lubricating oil connection pipe 35. A part of the lubricating oil connection pipe 35 is a bellows (expansion joint) and can be expanded and contracted.

As shown in FIGS. 2 and 3, the height adjusting plate drive mechanism 30 includes an adjusting rod 40 extending in the Y direction, an adjusting rod support portion 41 that rotatably supports the adjusting rod 40, a first stopper 42, and a second stopper 42. And a drive handle 44 for rotating the adjusting rod 40. The adjustment rod support portion 41 is fixed to the support member 14.

The first stopper 42 and the second stopper 43 are fixed to the adjusting rod 40, the first stopper 42 is closer to the rotation axis a than the adjusting rod support portion 41, and the second stopper 43 is an adjusting member. It is on the side farther from the rotation axis a than the rod support portion 41. When the first stopper 42 or the second stopper 43 comes into contact with the adjustment rod support portion 41, the movement of the adjustment rod 40 in the axial direction (Y direction) is blocked.

The drive handle 44 is located farther from the rotation axis a than the second stopper 43. The drive handle 44 may be manually rotated, but may be rotated by an electric motor (not shown).

A male screw 40a is formed near the tip of the adjusting rod 40 on the side closer to the rotation axis a. A screw hole extending in the Y direction is formed in the height adjusting plate 22, and a male screw 40a near the tip of the adjusting rod 40 is screwed into the screw hole of the height adjusting plate 22. By rotating the drive handle 44 to rotate the adjusting rod 40, the height adjusting plate 22 is driven in the Y direction.

As shown in FIG. 3, a positioning block 45 is fixed to the support member 14. The positioning block 45 is arranged so as to prevent the bearing device 13 from moving in the Y direction. As a result, when the height adjusting plate 22 is moved in the Y direction, the bearing device 13 is moved in the Y direction by the frictional force between the upper surface 22a of the height adjusting plate 22 and the bottom surface 20a of the flange 20 of the bearing device 13. It is prevented from moving.

According to the first embodiment described above, the height of the bearing device 13 can be adjusted by rotating the drive handle 44 to move the height adjusting plate 22 horizontally in the Y direction. Moreover, this height adjustment can be performed during operation without stopping or disassembling the rotating machine 10. Furthermore, there is no need for complicated wiring for adjusting the height, no loss during operation, and no need for constant energy supply. Further, since a part of the lubricating oil connection pipe 35 is expandable and contractable, it is possible to continue supplying the lubricating oil to the sliding portion of the bearing device 13 while adjusting the height of the bearing device 13.

[Second Embodiment]
FIG. 4 is a schematic vertical sectional view of a rotary machine according to a second embodiment of the present invention. This embodiment is a modification of the first embodiment, and the upper surface 14a of the support member 14 is inclined so that it becomes lower as it moves away from the rotation axis a in the Y direction. The bottom surface 20a of the height adjusting plate 22 that is in surface contact with the upper surface 14a of the support member 14 is also inclined to match the inclination of the upper surface 14a of the support member 14. However, in this embodiment, the adjusting rod 40 (FIGS. 2 and 3) is not horizontal, but is inclined according to the inclination of the upper surface 14a of the support member 14. Other configurations are similar to those of the first embodiment. The thickness in the height direction of the height adjusting plate 22 becomes thicker as it goes away from the rotation axis a, as in the first embodiment.

In this embodiment as well, as in the first embodiment, by rotating the adjusting rod 40, the position of the height adjusting plate 22 in the horizontal direction can be brought close to or away from the rotation axis a. Therefore, the height of the bearing device 13 can be adjusted.

[Third Embodiment]
FIG. 5 is a schematic vertical sectional view of a rotary machine according to a third embodiment of the present invention. In this embodiment, similarly to the second embodiment, the upper surface 14a of the support member 14 is inclined so that it becomes lower as it moves away from the rotation axis a in the Y direction. The bottom surface 20a of the height adjusting plate 22 that is in surface contact with the upper surface 14a of the support member 14 is also inclined to match the inclination of the upper surface 14a of the support member 14. Further, similarly to the second embodiment, the adjustment rod 40 (FIGS. 2 and 3) is not horizontal but is inclined according to the inclination of the upper surface 14a of the support member 14. In the third embodiment, both the upper surface 22a of the height adjusting plate 22 and the bottom surface 20a of the collar 20 of the bearing device 13 are horizontally spread.

Other configurations are similar to those of the first and second embodiments. The thickness of the height adjusting plate 22 in the height direction increases as the distance from the rotation axis a increases, as in the first and second embodiments.

In this embodiment as well, as in the first and second embodiments, by rotating the adjusting rod 40, the horizontal position of the height adjusting plate 22 is moved closer to or away from the rotation axis a. The height of the bearing device 13 can be adjusted accordingly.

[Fourth Embodiment]
FIG. 6 is a schematic vertical sectional view of a rotary machine according to a fourth embodiment of the present invention. The fourth embodiment is a modification of the first embodiment, in which the bearing 13 is supported by the bearing stand 50, the bearing stand 50 is supported by the two height adjusting plates 22, and the two height adjusting plates 22 are adjusted. The plate 22 is supported by a horizontally extending sole plate (support member) 15, and the sole plate 15 is supported by a concrete foundation 16.

In this embodiment, since the bearing 13 and the bearing stand 50 are supported by the height adjusting plate 22, the bearing 13 and the bearing stand 50 are collectively referred to as a bearing device 51.

The structure of the height adjusting plate 22 is the same as that of the first embodiment, and the upper surface 22a of the height adjusting plate 22 is inclined so that the thickness in the height direction becomes thicker as it moves away from the rotation axis a in the horizontal direction. doing. The bottom surface of the bearing base 50, which is in contact with the upper surface 22a of the height adjusting plate 22, is inclined like the upper surface 22a of the height adjusting plate 22 so as to make surface contact with the upper surface 22a of the height adjusting plate 22.

The structure of the height adjusting plate drive mechanism 30 is similar to that of the first embodiment.

Although the lubricating oil supply pipe 33, the lubricating oil supply hole 34, and the lubricating oil connection pipe 35 (FIG. 1) are not shown in FIG. 6, these configurations may be the same as those in the first embodiment. However, in the fourth embodiment, the distance in the height direction between the bearing base 50 and the sole plate 15 changes. Therefore, the lubricating oil connection pipe at a position corresponding to the change in the distance has a structure capable of expanding and contracting.

According to the fourth embodiment, similarly to the first embodiment, by driving the height adjusting plate 22 in the Y direction by the height adjusting plate driving mechanism 30, the bearing device 51 including the bearing stand 50 is provided. The height can be adjusted.

[Fifth Embodiment]
FIG. 7 is a schematic plan view showing the arrangement of the height adjusting plate drive mechanism and the positioning block in the rotary machine according to the fifth embodiment of the present invention.

The fifth embodiment is a modification of the first embodiment, and the height adjusting plate drive mechanism 30 includes an adjusting rod 40 and an adjusting rod drive shaft 60 in a direction intersecting the axis of the adjusting rod 40. And a direction changing gear 61 that converts the rotational drive force of the adjustment rod drive shaft 60 into the rotational drive force of the adjustment rod 40. The drive handle 44 is attached to the tip of the adjustment rod drive shaft 60 on the side far from the direction changing gear 61.

In the illustrated example, the direction changing gear 61 is a bevel gear, the direction of the adjusting rod 40 and the direction of the adjusting rod drive shaft 60 are orthogonal to each other, and the adjusting rod drive shaft 60 extends in the X direction. As the direction changing gear 61, a worm gear or the like formed by combining a worm and a worm wheel may be used instead of the bevel gear.

By rotating the adjusting rod drive shaft 60 with the drive handle 44, the adjusting rod 40 can be rotated.

The configuration other than the above is the same as that of the first embodiment.

According to the fifth embodiment, it is possible to rotate the adjusting rod 40 at a position distant from the position of the bearing device 13 in the rotation axis direction (X direction) and by rotating around the axis different from the axis of the adjusting rod 40. it can.

When adjusting the height of the bearing arranged in the cone of the low-pressure casing of the steam turbine, it is difficult to directly rotate and drive the adjusting rod 40 extending from the bearing device 13 in the Y direction as in the first embodiment. However, by using the fifth embodiment, since the adjusting rod 40 can be operated at a position distant from the position of the bearing device 13 in the rotation axis direction (X direction), the height of the bearing arranged in the cone of the low pressure casing can be increased. Adjustment can also be made.

[Other Embodiments]
The features of the above embodiments may be combined as appropriate.

Further, in the height adjusting plate drive device 30 of the above embodiment, the adjusting rod 40 does not move in the axial direction, and the male screw 40a near the tip of the adjusting rod 40 is screwed into the screw hole in the height adjusting plate 22. Thus, the height adjusting plate 22 is moved in the horizontal direction (Y direction). Instead of such a configuration, a screw hole is provided in the adjustment rod support portion 41 so that the adjustment rod 40 can move in the axial direction (Y direction) while rotating by screwing into the screw hole. Can also be a mechanism that moves the height adjusting plate 22 in the Y direction by interlocking with the movement of the adjusting rod 40 in the axial direction (Y direction) by rotating and sliding with respect to the height adjusting plate 22 (not shown). ).

Further, as another example of the height adjusting plate driving device 30, the adjusting rod may be driven in the Y direction by, for example, a rack and pinion mechanism (not shown).

Although some embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. The embodiments and their modifications are included in the scope of the invention and the scope thereof, and are included in the invention described in the claims and the scope of equivalents thereof.

DESCRIPTION OF SYMBOLS 10... Rotating machine, 11... Rotor (rotating body), 12... Rotating body support device, 13... Bearing device (bearing), 14... Support member, 14a... Upper surface, 15... Sole plate (support member), 16... Foundation, 20... Tsuba, 20a... Bottom, 22... Height adjusting plate, 22a... Top, 22b... Bottom, 30... Height adjusting plate drive mechanism, 33... Lubricating oil supply pipe, 34... Lubricating oil supply hole, 35... Lubricating oil Connection pipe, 40...Adjusting rod, 40a...Male screw, 41...Adjusting rod support part, 42...First stopper, 43...Second stopper, 44...Drive handle, 45...Positioning block, 50...Bearing base, 51... Bearing device, 60... Adjusting rod drive shaft, 61... Direction changing gear, a... Rotating shaft

Claims (12)

A bearing device that supports a rotating body so as to be rotatable about a horizontal rotation axis;
A support member for supporting the bearing device,
A plurality of height adjusting plates interposed between the bearing device and the support member to transmit the load of the bearing device to the support member at at least two positions sandwiching the rotary shaft in the horizontal direction;
A rotating body supporting device having:
The thickness of the height adjusting plate in the up-down direction is formed so as to increase with increasing distance from the rotating shaft in the horizontal direction, and the height adjusting plate is moved in the horizontal direction so as to approach the rotating shaft. The rotating body support device is configured such that the bearing device is pushed up and the bearing device is lowered by horizontally moving the height adjusting plate away from the rotation shaft. The height adjustment plate has a top surface and a bottom surface that spread in the horizontal direction, the top surface of the height adjustment plate is in face-to-face contact with the bottom surface of the bearing device, and the bottom surface of the height adjustment plate is the support member. The rotating body supporting device according to claim 1, wherein the rotating body supporting device is configured to come into contact with the upper surface of the surface. The rotating body supporting device according to claim 2, wherein an upper surface of the height adjusting plate is inclined so as to become higher as it is separated from the rotation axis in the horizontal direction. The rotor support device according to claim 2 or 3, wherein a bottom surface of the height adjusting plate is inclined so as to become lower as it moves away from the rotation axis in the horizontal direction. Lubricating oil supply pipe that can supply lubricating oil,
An expandable and contractable lubricating oil connection pipe connected to the lubricating oil supply pipe,
Further has
The bearing device is provided with a lubricating oil supply hole for supplying lubricating oil to a sliding position with the rotating body,
The rotating body supporting apparatus according to claim 1, wherein the lubricating oil supply hole is connected to the lubricating oil connection pipe. The bearing device is
A bearing that rotatably supports the rotating body around a horizontal rotation axis,
A bearing stand that extends horizontally to support the bearing,
Equipped with
The rotating body supporting device according to claim 1, wherein a bottom surface of the bearing base is in contact with an upper surface of the height adjusting plate. 7. The rotating body supporting device according to claim 1, further comprising a positioning block that prevents the bearing device from moving in a horizontal direction perpendicular to the direction of the rotating shaft. .. A height for converting the rotational driving force into a horizontal driving force of the height adjusting plate to drive the height adjusting plate in a direction away from the rotation axis in the horizontal direction and a direction approaching the rotation axis in the horizontal direction. 8. The rotating body supporting device according to claim 1, further comprising an adjusting plate driving mechanism. The height adjusting plate is formed with a screw hole that extends in the horizontal direction and opens to the side distant from the rotating shaft in the horizontal direction,
The height adjustment plate drive mechanism is
An adjusting rod formed with a male screw extending horizontally and screwed into the screw hole;
An adjusting rod support portion that rotatably supports the adjusting rod,
A stopper for limiting the movement of the adjusting rod in the axial direction,
9. The rotating body support device according to claim 8, further comprising: a height adjusting plate configured to be movable in an axial direction of the adjusting rod by rotating the adjusting rod. The height adjustment plate drive mechanism is
An adjusting rod drive shaft in a direction intersecting the axis of the adjusting rod,
A direction changing gear that converts the rotational drive force of the adjustment rod drive shaft into the rotational drive force of the adjustment rod;
The rotating body supporting device according to claim 9, further comprising: A rotating body that can rotate around a horizontal rotation axis,
A rotating body supporting device that rotatably supports the rotating body,
A rotary machine having
The rotating body support device,
A bearing device that supports the rotating body,
A support member for supporting the bearing device,
A plurality of height adjusting plates interposed between the bearing device and the support member to transmit the load of the bearing device to the support member at at least two positions sandwiching the rotary shaft in the horizontal direction;
Have
The thickness of the height adjusting plate in the up-down direction is formed so as to increase with increasing distance from the rotating shaft in the horizontal direction, and the height adjusting plate is moved in the horizontal direction so as to approach the rotating shaft. A rotating machine configured such that the bearing device is pushed up, and the bearing device is lowered by horizontally moving the height adjusting plate away from the rotary shaft. A method of operating a rotating machine, comprising: a rotating body rotatable about a horizontal rotation axis; and a rotating body supporting device that rotatably supports the rotating body,
The rotating body support device,
A bearing device that supports the rotating body,
A support member for supporting the bearing device,
A plurality of height adjusting plates interposed between the bearing device and the support member to transmit the load of the bearing device to the support member at at least two positions sandwiching the rotary shaft in the horizontal direction;
Have
The thickness of the height adjusting plate in the up-down direction is formed so as to become thicker with increasing distance from the rotating shaft in the horizontal direction,
The operating method is
A rotating step of rotating the rotating body,
While continuing the rotating step, the bearing device is pushed up by moving the height adjusting plates in the horizontal direction so as to approach the rotating shaft, or the height adjusting plates are moved from the rotating shaft. A height adjusting step of adjusting the height of the bearing device by lowering the bearing device by moving the bearing device in a horizontal direction away from each other,
A method of operating a rotating machine, comprising:

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