JP3083058B2 - Rotor rotation receiving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a rotor rotating cradle device for mounting and rotating a disassembled rotor during inspection or repair work of a rotating machine, and in particular, for example, a steam turbine or a gas turbine. The present invention relates to a rotor rotation cradle device for receiving a large-sized rotor, which is employed in the present invention.

[0002]

2. Description of the Related Art Rotary machines such as steam turbines and gas turbines are disassembled every time a certain operating period elapses, and each component is inspected or repaired periodically. In this case, the rotor taken out of the cabin cannot be placed directly on the floor due to its configuration. In general, a dedicated pedestal is prepared in advance and supported on this pedestal. Normal. In this case, the rotor is rotatably supported to facilitate inspection or repair work.

FIG. 19 shows an example of this type of rotor rotating cradle device generally used in the prior art. In the case of this example, when the rotor 10 is supported, the driving-side pedestal 1
00 and the driven-side cradle 200 are directly installed on the work floor, respectively, and the rotor 10 is supported by the shaft portions (journal portions) on both sides. FIGS. 20 and 23 show a movable cradle device in which the driving cradle 100 and the driven cradle 200 are installed on a common base 400 to support the rotor 10. ing.

[0004] The former rotor rotation receiving device, ie, FIG.
9, the drive-side pedestal 100 and the driven-side pedestal 200 are provided with two rotor supporting rollers 110, 120 and 210, 220, respectively, in the dedicated type shown in FIGS. The rotor support rollers 110 are rotationally driven by a roller drive device 150, and the rotation rotates the rotor. In addition,
Rollers 120, 210, 220 are mounted on rotor 10
Is rotated through the

In the latter type (FIGS. 20 and 23), the relationship between the rotor 10 and the rotor supporting rollers is the same as that of the dedicated type, but the driven-side pedestal 200 is mounted on the common base 400. A function is added on the linear bearing device 410 laid on the rotor 10 so as to be movable in the axial direction of the rotor 10.

[0006] The rotor rotating cradle device thus formed also has the following functions. That is, the portions 11 and 12 of the rotor supported by the rotor support rollers are usually journal portions (bearing portions) of the rotor, and the bearing portions 11 and 12 generally have different shaft diameters. In order to support horizontally, it is necessary to make the height of the roller between the driving-side pedestal and the driven-side pedestal differ by だ け (radius difference) of the shaft diameter difference between the two bearing portions.

[0007] Therefore, to insert a regulatory liners 175 between the upper enclosure 160 and lower enclosure 180 of the drive-side pedestal,
The adjustment liner 275 is inserted between the upper housing 260 and the lower housing 280 of the driven-side cradle, and the two liners 175 and 27 are inserted.
5 or a method of inserting only the adjusting liner 175 or 275 corresponding to the radius difference of the rotor shaft only on the pedestal side with the smaller shaft diameter of the rotor bearing portion. Is used.

On the other hand, in a state where the rotor is supported on the driving-side cradle and the driven-side cradle, the rotor itself undergoes shaft deflection due to its own weight as shown in FIG.
In order for the outer peripheral surface of the support roller to be in contact with the rotor axis in parallel because of X ′, the rotor support roller needs only α ₁ and α ₂ corresponding to the deflection angle of the rotor with respect to the vertical center line ZZ. It is necessary to provide an automatic centering function for inclining and providing a posture suitable for shaft deflection of the rotor.

[0009] Related to these are Japanese Utility Model Application Laid-Open No. 56-129694 and Japanese Utility Model Application Laid-Open No. 58-1775.
No. 02 and JP-A-57-99280.

[0010]

In the rotor rotation receiving device thus formed, first, FIGS.
1. In the case of the dedicated type shown in FIG. 22, both the driving side and the driven side pedestals are directly installed on the installation floor, so that they must be accurately installed on the center line XX shown in FIG. However, since the distance L between the centers of the two cradles is long, it is not easy to accurately center the space between the cradles. When the rotor is installed at a position deviated by a distance M from the desired center line, the rotor is moved to the center line. The rotor is supported on the line X'-X ', and the rotor supporting rollers 110, 120 and 21 for supporting the same are supported.
0 and 220 are not in a position displaced on a line Y′-Y ′ inclined by an angle θ with respect to the center line YY, since a contact portion between the rotor and the roller is in a state of one-side contact, which is a problem. In order to eliminate this one-sided contact state, there is a drawback that the centering of the two cradles at the time of installation is required to be accurate, and in some cases, the installation position needs to be corrected.

In addition, for example, due to the bending of the rotor shaft, the mounting error of the cradle, the manufacturing error of the outer peripheral surface of the roller, etc., the bearing portion of the rotor and the outer peripheral surface of the supporting roller come into contact with each other while maintaining a proper relationship. If the rotor cannot be rotated, the rotor moves in the axial direction with the rotation of the rotor, but there is a dislike that much time is spent on this measure.

In the case of the movable type shown in FIGS. 20 and 23, the driven cradle is moved in the axial direction of the rotor so that a plurality of rotors having different lengths of bearing portions of the rotor can be mounted. It is possible to mount a plurality of rotors having different lengths on the same cradle device.
Although it is effective without the difficulty of the installation work of the floor direct installation type described in the above, on the other hand, it is difficult to adjust the height position of both pedestals, and the adjustment is inconvenient. I hate moving in the direction.

Also, it is necessary to install the common base horizontally even with respect to the unevenness or inclination of the floor on which the common base is installed. Although the centering work is performed, the common base on which the cradle device is installed has a considerable weight, and thus has a drawback that the centering work requires a lot of time.

In general, a thermal power plant or a nuclear power plant has a plurality of steam turbine or gas turbine facilities, and each of the turbine facilities has a plurality of rotors due to a high pressure, a low pressure turbine or the like. A power plant has several to several tens of rotors, but the conventional rotor rotation cradle is generally dedicated to the rotor, and requires cradle devices as many as the number of rotors. There are drawbacks such as a large economic burden on the place and a large installation space for the cradle.

The present invention has been made in view of the above, and an object of the present invention is to allow a plurality of rotors having different sizes and shapes to be mounted alternately with one set of rotor rotation receiving devices.
An object of the present invention is to provide a rotor rotating cradle device of this kind which can reduce the economic burden, reduce the installation area of the cradle due to the common use effect, and shorten the setup work time for supporting the rotor. is there.

[0016]

Means for Solving the Problems] The present invention includes a pair
Rotor supporting roller and rotor for rotating the rotor
Drive-side cradle device having a rotating device, and drive-side cradle device
And a pair of rotor supports
Driven cradle device having a holding roller, and driven cradle device
Base on which the mounting and the driving-side cradle device are installed
A rotor rotating cradle device including a device, before Symbol the drive-side pedestal apparatus and driven cradle device, the rotor and the rotor support roller lifting device for adjusting the height of the support rollers, the rotor support rollers on in the rotor shaft position supporting device for regulating the axial position of the rotating rotor, said rotor supporting
The roller is inclined with respect to the shaft deflection of the rotor, and the rotor shaft is
And automatic alignment apparatus to adapt the bearing of the rotor on the rotor support roller is slid relative to the position of displacement, the cradle device
And a centering device for centering at the time of installation, and the center distance between the pair of rotor support rollers is adjusted so as to achieve an intended purpose.

[0017]

In other words, according to the rotor rotating cradle device thus formed, necessary dimensions or postures of the respective portions on the cradle side can be freely adjusted, so that one set of the same rotor rotating cradle device can be used. A plurality of rotors having different sizes and shapes can be supported at appropriate positions, thereby reducing the economic burden as compared with a dedicated cradle device requiring one set of cradle devices for each supported rotor. Therefore, it is possible to reduce the installation area of the cradle due to the sharing effect, and to shorten the time required for the setup work for supporting the rotor.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. In FIG. 1, as a first embodiment according to the present invention, a set of a rotor rotating cradle device is constructed by installing a driving cradle 100 supporting a rotor 10 and a driven cradle 200 on a common base 400. An example is shown.

FIG. 2 shows a driving-side pedestal 100 and driven-side pedestals 200 and 3 as a second embodiment according to the present invention.
00 is mounted on a common base 400 to form a set of rotor rotating cradle devices. FIG. 3 shows a third embodiment according to the present invention as a driving cradle 100 and a driven cradle. An example is shown in which 200 and 300 are installed on an installation floor to form a set of rotor rotation receiving devices.

The driving-side receiving base 10 shown in FIGS. 1, 2 and 3
0, since the basic device configurations of the driven cradle 200 and 300 are common to each other, each device will be described with reference to FIG. First, the schematic configuration of the cradle device will be described. The drive-side cradle 100 has a three-stage structure including a roller support 140, an upper housing 160, and a lower housing 180 mounted on a common base 400, Roller support 140
Have two rotor support rollers 110 and 120
A roller spacing adjusting device 130 (FIG. 4) for adjusting the spacing between the two rollers, and a driving device 150 for rotating one of the rollers are provided. An elevating device 170 for moving the table up and down is provided.
This is a configuration that incorporates an automatic alignment device 190 that allows 0 to tilt and slide in an arbitrary direction.

The driven-side pedestal 200 is a linear bearing device in which a three-stage structure including a roller support 240, an upper housing 260, and a lower housing 280 similar to the driving-side pedestal 100 is laid on a common base 400. The roller support 240 is provided with a roller gap adjusting device 230 (FIG. 5) and a rotor shaft position support device 500 on the roller support 240. Is provided with a lifting device 270 and a lower housing 280 is provided with an automatic alignment device 290.

A second embodiment shown in FIG.
00 is mounted on a common base 400 so as to be movable in the axial direction of the rotor, and supports the rotor 10 at three points. A rotor shaft position support device 500 provided on the driven receiving stand 200 is provided. The driven cradle 200 and 300 have the same structure except that they are not provided.

The third embodiment shown in FIG. 3 is similar to the third embodiment shown in FIG.
Common cradle device 100, 200, 300
This is an example in which the rotor 10 is mounted directly on the floor without using 00 and the rotor 10 is supported at three places. The difference between FIG. 2 and FIG.
The centering devices 185, 285, and 385 for facilitating the centering work at the time of installation are provided on the lower housings 180, 280, and 380 of the receiving tables shown in FIG.

First, a rotor support roller spacing adjusting device, which is a first function of the present invention, will be described with reference to FIGS. FIG. 6 is a view showing a state where the relationship between the diameter φD of the supporting rollers 110 and 120 and the center distance C between them is appropriate with respect to the shaft diameter φd of the rotor bearing. FIG. 7 shows the same roller as FIG. FIG. 8 is a diagram when a thin rotor is supported, and FIG. 8 is a diagram when a rotor having a large shaft diameter is supported on the same rollers as in FIG.

In the case of FIG. 7, the rotor shaft diameter φd is too small relative to the roller diameter φD and the center-to-center distance C, so that the rotor is sandwiched between the rollers and has a drawback that smooth rotation is difficult. 8, in the case of FIG.
Is too large relative to the roller diameter φD and the center-to-center distance C, and there is anxiety and danger that the rotor may fall over the roller during rotation of the rotor.

In the case of a general-purpose cradle in which a plurality of rotors having different rotor shaft diameters are mounted on the same cradle, the roller spacing is adjusted so that the roller spacing conforms to the shaft diameter of the supported rotor as described above. and require the ability to adjust the middle Kokorokan距 away C.

The function of adjusting the distance between the rotor supporting rollers by the driven receiving cradle 200 shown in FIGS. 1 and 5 will be described. FIG.
, Rollers 210 and 220 are brackets 211 and
221 is rotatably mounted on roller shafts 212 and 222, and lower portions of brackets 211 and 221 are fitted into grooves of the roller support 240 so as to be slidable in a direction orthogonal to the rotor shaft, and a screw shaft is provided. Screw on 213 and 223
It is engaged, a structure for adjusting the distance between the centers of the rollers 210 and 220 by rotate the handle 231 and 232 to move the brackets 211, 223 in the direction perpendicular to the rotor axis. Therefore bracket 211 after adjusting the bolt to the spacing a appropriate position of the rollers 210 and 220,
221 is fixed to the support 240.

Next, a rotor shaft position support device as a second function of the present invention will be described with reference to FIGS.
The rotor 10 includes support rollers 110, 120, 210, 22
0, the rotor does not move in the axial direction if the relationship between the rotor and the support roller is completely accurate, but in general, the relationship between the rotor and the support roller is, for example, dimensional error, , Etc., a slight axial movement occurs with the rotation of the rotor. Therefore, it is necessary to support the rotor in the axial direction so that this minute movement does not accumulate and cause a large displacement.

In FIG. 1, the rotor shaft position support device 50
0 is a bracket 51 attached to the roller support 240.
A support roller 540, 550 which is movable in the axial direction by two screw shafts 520, 530 (FIG. 18) provided on the top of the rotor 10 sandwiches the left end coupling flange 13 of the rotor 10.

Since the distance Lc from the center of the driven-side receiving stand 200 to the coupling flange on the left end of the rotor and the thickness T of the coupling are different for each mounted rotor, the supporting rollers 540 and 550 are adapted to the coupling part. This is a structure that can be individually moved by the respective screw shafts 520 and 530.

Next, the lifting / lowering device for the rotor supporting roller, which is a third function of the present invention, will be described with reference to FIGS. In general, the shaft diameters d ₁ and d ₂ of _one rotor supported by the rotor supporting rotor are often different from each other. In order to support the rotor 10 horizontally, the height of the supporting roller is set to 1 / (the difference between the shaft diameters of the rotors). 2 (radius difference).

Further, when supporting different rotors,
There is a case where it is desired to change the height from the floor surface to the center of the rotor shaft in relation to the maximum outer diameter of the rotor wheel, and in the case of a general-purpose cradle in which a plurality of rotors are replaced as in the device of the present invention. Needs to have a function of continuously adjusting the height of the rotor support roller to an arbitrary height.

For this reason, in FIG.
A screw jack type roller elevating device 270 is provided therein, and the screw shaft 271 (FIG. 5) is raised and lowered to move the entire roller support 240 up and down together with the guide rod 242 to adjust the height of the roller. is there.

Next, an automatic centering device for a rotor supporting roller, which is a fourth function of the present invention, will be described. As described in the section of the related art, in order to keep the rotor shaft and the support roller in a completely proper contact relationship, the support roller side must be tilted and displaced in any direction so as to match the position of the rotor shaft. A possible self-centering device is needed. For this purpose, an automatic alignment device 190 is provided in the lower housing 180 shown in FIGS. 11 and 12, and the upper housing 1 mounted thereon is mounted.
60, roller support 140, rotor support roller 110,
120 is a structure capable of swinging and displacing in any direction as a unit.

The self-centering device 190 includes a receiving metal 191, an upper plate 192, an upper plate 193, and a sliding plate 1 having an arc-shaped cross section.
94, 195, a lower plate 196, a rubber plate 197, a lower plate 198, and a mounting plate 199;
Reference numeral 95 denotes a high-load bearing plate made of a special material having a low coefficient of friction, self-lubricating property, abrasion resistance, etc. on the relative sliding surfaces of the rollers.
Of the contact between the receiving member 191 and the upper housing 160 and the rubber
Was allowable by the plate 197, for the displacement of the rotor shaft position is a structure acceptable by sliding between the contact surfaces of the sliding plate 194, 195, the lower enclosure 180 as its synthesis operation
On the other hand, when the upper housing 160 is inclined and displaced in an arbitrary direction, an automatic centering function is exhibited.

The plurality of bolts 163 are stoppers for adjusting the gap G ₁ with the upper plate 192 to limit the allowable inclination of the upper case 160 with respect to the lower case 180, and the plurality of bolts 182 are provided on the upper plate 192. gap G ₂ of the 192
Is a stopper for limiting the allowable sliding displacement amount between the sliding plates 194 and 195 by adjusting the distance.

13 and 16, a plurality of bolts 1
64 keep loosened so until mounting the rotor to the cradle device to allow the gap G ₃ as shown in FIG. 13, the centering function of the automatic alignment apparatus for generating by mounting the rotor in cradle device Accordingly, after the state where the upper enclosure 160 and lower enclosure 180 is displaced, the respective gaps G ₃ of the bolt 164 by contact with the fixed plate 162 to be zero, the upper enclosure 160 and lower enclosure 180 is fixed while maintaining the alignment state.

In FIG. 12 and FIG.
65 is loosened as shown in the figure when it is used as a cradle device so that the upper housing 160 and the lower housing 180 can operate relative to each other. 181 to tighten the upper housing 16
A fixing bolt for binding and integrating the lower housing 180 with the lower housing 180.

Next, a description will be given of a fifth embodiment of the present invention, which is a common base horizontality adjusting device. In FIG. 1, a common base 400 on which a driving-side pedestal 100 and a driven-side pedestal 200 are installed is installed on a working floor surface. Requires a common base level adjustment.

A plurality of jack devices 430 are provided between the plurality of deposits 420 and the common base 400 in order to facilitate the horizontality adjustment of the common base 400, which is a considerable weight body having a plurality of receiving stands. Obtaining levelness efficiently by adjusting the height of each part by jack device according to the situation of the installation floor surface while checking the levelness with a plurality of levels 440 provided on the base 400 It is a configuration that can be performed.

Next, a description will be given of a centering device between a plurality of receiving tables, which is a sixth function of the present invention. FIG. 3 is a diagram illustrating an example in which three receiving devices are directly installed on the floor. As described with reference to FIG. 10 in the section of [Prior Art], it is not easy to accurately install a plurality of cradles on a straight line, and therefore, a device that can easily and accurately perform centering has been demanded. .

As a means for solving this problem, the centering apparatus is provided with a plurality of pairs of beam sensors and a measuring unit for passing the beam light in the receiving stand itself. The centering position can be determined by passing a plurality of parallel beam light beams through.

That is, as shown in FIGS. 3, 15, and 16, a plurality of beam sensor light emitters 282, a plurality of light receivers 182, and measurement slit plates 185, 285, and 385 are provided in the lower housings 180, 280, and 380. Provided, the projector 28
The beam beam B projected from 2 is a slit plate 285, 3
The centering is performed by adjusting the positions of the lower housings 180, 280, and 380 so that they can reach the light receiver 182 through the light receiving devices 185 and 185.

As described above, with this rotor rotation receiving device, (1) a plurality of rotors having different dimensions and shapes can be replaced by one set of the same rotor rotation receiving device. (2) The distance between the support rollers can be adjusted to an appropriate position in accordance with the difference in the shaft diameter of the bearing portion of the rotor. (3) The posture of the rotor supporting roller can always be automatically adjusted to an appropriate position in response to a change in the rotor position due to a mounting error of the receiving table, a shaft deflection of the rotor, or the like. (4) The rotor supported and rotated by the rotor support roller can be supported at a fixed position so as not to move in the axial direction during rotation. (5) The height of the rotor support roller can be continuously adjusted to an arbitrary position, and the work of centering the supported rotor in the horizontal direction becomes easy. (6) The work of centering the horizontality of the common base becomes easy. (7) The centering work when the cradle device is directly installed on the work floor is facilitated. (8) As the overall effect of the above functions, there are an economic effect of the general-purpose configuration, a reduction in the installation area of the cradle, and an effect of shortening the setup time for mounting the rotor.

[0045]

As described above, according to the present invention, a general-purpose type combined with various devices capable of easily adjusting the dimensions and posture of each part on the receiving base so as to be adapted to the dimensions of each part of the rotor to be supported. With this configuration, a plurality of rotors having different dimensions and shapes can be mounted and changed on the same set of rotor rotation cradle devices, and a dedicated type that requires one set of cradle devices for each supported rotor. Compared with the cradle device, the economic burden can be reduced, and the pedestal installation area can be reduced due to the sharing effect, and the setup work time for supporting the rotor can be shortened.

[Brief description of the drawings]

FIG. 1 is a side view illustrating an embodiment of a rotor rotation receiving device according to the present invention.

FIG. 2 is a side view showing another embodiment of the rotor rotation receiving device of the present invention.

FIG. 3 is a side view showing another embodiment of the rotor rotation receiving device of the present invention.

FIG. 4 is a sectional view taken along line AA of FIG.

FIG. 5 is a sectional view taken along the line BB of FIG. 1;

FIG. 6 is a diagram showing a relationship between a shaft diameter of a rotor and a rotor supporting roller.

FIG. 7 is a diagram showing a relationship between a shaft diameter of a rotor and a rotor support roller.

FIG. 8 is a diagram showing a relationship between a shaft diameter of a rotor and a rotor supporting roller.

FIG. 9 is a side view showing a relationship between a shaft deflection of a rotor and a rotor support roller.

10 is a view to plan view of the relationship between the rotor and the support rotor by error installation between cradle.

FIG. 11 is a sectional view taken along line FF of FIG. 4;

12 is a cross-sectional view showing a part of FIG. 11 in an enlarged manner.

FIG. 13 is a sectional view taken along the line CC of FIG. 1;

FIG. 14 is a sectional view taken along line DD of FIG. 1;

FIG. 15 is a sectional view taken along the line HH in FIG. 3;

FIG. 16 is a sectional view taken along line JJ of FIG. 3;

FIG. 17 is a sectional view taken along line GG of FIG. 5;

FIG. 18 is a sectional view taken along the line EE in FIG. 1;

FIG. 19 is a side view showing an example of a conventional rotor rotation receiving device.

FIG. 20 is a side view showing another example of the conventional rotor rotation receiving device.

FIG. 21 is a sectional view taken along the line KK of FIG. 19;

FIG. 22 is a sectional view taken along line LL of FIG. 19;

FIG. 23 is a sectional view taken along the line MM of FIG. 20;

[Explanation of symbols]

10 ... rotor, 11, 12 ... rotor journal part, 13
... Rotary coupling unit, 100 ... Drive-side cradle device, 2
00: driven cradle device, 300: driven cradle device, 40
0: Common base device, 500: Rotor shaft position support device, 110, 120, 210, 220: Rotor support roller, 130, 230: Roller gap adjusting device, 140, 2
40: roller support device, 150: roller rotating device, 16
0, 260: Upper housing, 170, 270: Roller elevating device, 180, 280: Lower housing, 190, 290: Automatic alignment device, 410: Linear bearing device, 420: Jack device.

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hikoshiro Sugawara 3-2-2, Sachimachi, Hitachi-shi, Ibaraki Inside Hitachi Engineering Services Co., Ltd. (72) Susumu Susumu 3-1-1, Sachimachi, Hitachi-shi, Ibaraki No. Inside Hitachi, Ltd. Hitachi Plant (72) Inventor Michihiro Goto 3-1-1, Sachimachi, Hitachi-shi, Ibaraki Prefecture Inside Hitachi, Ltd. Hitachi Plant (72) Inventor Toyo Takeshita 3-1-1, Sachimachi, Hitachi-shi, Ibaraki No. 1 Inside Hitachi, Ltd. Hitachi Plant Hei 5-74171 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F01D 25/28 F01D 25/00

Claims (11)

(57) [Claims] 1. A drive-side cradle device comprising a pair of rotor support rollers and a rotor rotating device for rotatingly driving a rotor, and a pair of rotors disposed to face the drive-side cradle device at a predetermined interval. A rotor rotating cradle device comprising: a driven cradle device having a supporting roller; and a common base device on which the driven cradle device and the driving cradle device are installed. and the driven-side cradle apparatus, and a rotor support roller lifting device for adjusting the height of the rotor support rollers, and the rotor shaft position supporting device for regulating the axial position of the rotor rotating at the rotor supporting rollers on the rotor
The support roller is inclined with respect to the axial deflection of the rotor, and the rotor is rotated.
And automatic alignment apparatus to adapt the bearing of the rotor on the rotor support roller is slid relative to the displacement of the axis position, the cradle instrumentation
Provided with a to centering to perform centering during installation of the location device, the rotor rotating pedestal apparatus, wherein a distance between the centers of the pair of rotor support rollers adjustably formed. 2. A drive-side cradle device comprising a pair of rotor support rollers and a rotor rotating device for driving the rotor to rotate, and a pair of rotors disposed to face the drive-side cradle device at a predetermined interval. A rotor rotating cradle device comprising: a driven cradle device having a supporting roller; and a common base device on which the driven cradle device and the driving cradle device are installed. A rotor support roller elevating device that adjusts the height of the rotor support roller, and the rotor support roller adjusts the shaft deflection of the rotor.
And slide against the displacement of the rotor shaft position.
And automatic alignment apparatus to adapt the bearing of the rotor to the rotor support rollers Te, said to centering to perform centering during installation of the cradle device is provided and a device, and the driving-side pedestal apparatus or driven cradle device A rotor shaft position support device that regulates the axial position of the rotor that rotates on the rotor support roller, the distance between the drive-side cradle device and the driven-side cradle device, and A rotor rotation receiving device characterized in that the distance between the rotor supporting rollers is formed to be adjustable, so that rotors having different shapes and sizes can be mounted. 3. A drive-side cradle device comprising a pair of rotor support rollers and a rotor rotating device for driving the rotor to rotate, and a pair of rotors disposed opposite to the drive-side cradle device at a predetermined interval. A rotor rotating cradle device comprising: a driven cradle device having a supporting roller; and a common base device on which the driven cradle device and the driving cradle device are installed. and the driven-side cradle apparatus, and a rotor support roller lifting device for adjusting the height of the rotor support rollers, and the rotor shaft position supporting device for regulating the axial position of the rotor rotating at the rotor supporting rollers on the rotor
The support roller is inclined with respect to the axial deflection of the rotor, and the rotor is rotated.
And automatic alignment apparatus to adapt the bearing of the rotor on the rotor support roller is slid relative to the displacement of the axis position, the cradle instrumentation
A centering device for performing centering at the time of installation of the device, and a roller interval for adjusting the center-to-center distance of a pair of rotor supporting rollers supporting the rotor in the driving-side receiving device and the driven-side receiving device. A rotor rotation receiving device provided with an adjusting device. 4. The rotor rotation receiving device according to claim 1, wherein an outer peripheral portion of said pair of rotor support rollers is formed of a resin material. 5. The rotor rotation receiving device according to claim 4, wherein a resin material of an outer peripheral portion of said rotor support roller is nylon. 6. The pair of rotor supporting rollers are provided on the same roller supporting table, and are formed so that the roller supporting table and the rotor supporting roller are integrally moved up and down. 6. A rotor rotation receiving device according to claim 4 or 5. 7. The self-aligning device has a structure in which a metal receiving member having an arc-shaped cross-section, a plurality of sliding plates made of a resin material having a low coefficient of friction, and a rubber plate are vertically stacked. The gold surface is arranged in a direction in which it can freely swing in the axial direction of the rotor support roller, and freely slides in any direction on the contact surface of the plurality of sliding plates, and in any direction by the elastic force of the rubber plate. The rotor rotation receiving device according to claim 1, 2 or 3, which is formed so as to be able to bend. Wherein said rotor shaft position support apparatus, with respect to the vertical multiple planes to the axis of the rotor to be supported by the cradle, comprising a rotatable b over La contacting the lateral direction, the rotor shaft position support The roller supports the axial position of the rotor at a fixed position while rotating in contact with the vertical surface of the rotor, and the position of the supporting roller can be arbitrarily adjusted in the rotor axial direction and the vertical direction perpendicular thereto. 4. The rotor rotation cradle device according to claim 1, wherein the rotor cradle device is formed. 9. The rotor rotation receiving device according to claim 8, wherein an outer peripheral surface of said rotor shaft position supporting roller is formed of a resin material. 10. A linear bearing device in which the common base device movably mounts a driving-side cradle device and at least one driven-side cradle device, and confirms the horizontality of the common base in the longitudinal direction and the orthogonal direction. 4. A rotor rotating cradle device according to claim 1, further comprising a plurality of leveling devices, and a plurality of jack devices for adjusting a plurality of points of the common base in a vertical direction with respect to an installation floor. 11. The installation centering device comprises: a driving side receiving unit and a driven side receiving unit each of which is provided with a light emitter and a light receiver;
A beam sensor device forming a pair, and an optical axis path through which a beam beam emitted from the projector can pass and reach the receiver, the plurality of pedestals are received by the beam beam emitted from the projector reaching the receiver. 4. The rotor rotation receiving device according to claim 1, wherein the device has a function of confirming an installation parallelism between the devices.