JPS6327130B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to rotating machines, and more particularly to assembling and disassembling rotating machines.

Impeller rotors and vanes of rotating machinery, such as centrifugal compressors and expanders, must occasionally be removed for cleaning, maintenance, or replacement. For example, rotating machinery is often used with fluids that contain significant amounts of particles and debris. Over a period of time, these particles and debris tend to build up on the surface of the impeller blades, necessitating periodic removal of the rotor and blades from the machine in order to clean or replace the blades. The impeller rotor must also be removed from the machine for periodic inspection and maintenance, for example to repair or realign rotor seals or vanes.

Typically, removing an impeller rotor from a rotating machine requires disassembling a large portion of the machine, and many of those parts are large and heavy and difficult to handle. Furthermore, during reassembly, the parts must be precisely matched to each other and to the equipment used with the rotating machine, such as electric motors and generators. Therefore, disassembly and reassembly of rotating machinery requires skill. Also,
Needless to say, it must be kept in mind that during disassembly and reassembly, the machine is stopped, and during that time it is unproductive.

The present invention provides an apparatus for assembling and disassembling a horizontally split stator housing of a rotating machine, particularly the lower portion thereof. This stator housing assembly/
The disassembly device includes rail means for supporting a lower portion of the stator housing for movement toward or away from the rotating machine; and a disassembly device for displacing the lower portion of the stator housing between the rail means and an assembly position. and means for vertical movement.

The present invention also provides an apparatus for assembling and disassembling rotor seals and disk end bearings of rotating machines. The rotor seal and disk end bearing assembly and disassembly apparatus includes an axially extending carrier for supporting the rotor seal so that it can be moved between a seal lifting position and a seal disassembly position; and means for moving the disc end bearing between a bearing assembly position and a bearing lifting position.

The invention also provides an apparatus for assembling and disassembling an impeller rotor of a rotating machine. This rotor assembly and disassembly device is used for moving the disc end of the rotor between the rotor assembly position and the rotor lifting position, and for moving the rotor through the fluid casing of the rotating machine between the lifting position and the minute position. a disk end jig detachably connected to the disk end for horizontal movement at the rotor; a coupling end jig for moving the coupling end of the rotor between the rotor assembly position and the lifting position; and a rotating machine. and a coupling end carriage for supporting the coupling end of the rotor during movement of the rotor between its lifted and disassembled positions.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to FIGS. 1 and 2, a rotating machine 100 to which the present invention is directed is shown. fundamentally,
The rotating machine 100 includes a pace plate 102, a machine frame 104, an impeller rotor 106,
It includes a bearing device 110 and a fluid casing 112, and further includes an impeller blade 114, a stator blade 116, a partition wall 120, a stator housing 122,
and a rotor seal 124. The machine frame 104 is seated on a base plate 102, and the base plate 102 preferably projects toward the front (to the left in FIG. 1) of the machine frame 104. Impeller rotor 106 has a disc end 126 and a coupling end 130 and extends axially along the top of machine frame 104 and is rotatably supported by bearing arrangement 110 . The bearing device 110 is attached to the machine frame 1
Supported by 04. Bearing device 110
is a conventional horizontally split type including a disc end bearing 132, an intermediate bearing housing 134, and a coupling end bearing 136, with members 132, 134, 1
36 are both bolted to the top of the machine frame 104. Impeller blades 114 are secured to disk ends 126 of rotor 106 and project radially outward. Although only one impeller blade is shown in the figures, it goes without saying that the invention can also be applied to rotating machines having one or more sets of axially spaced impeller blades.

Fluid casing 112 is attached to machine frame 104
It is fixed to the machine frame and the impeller rotor 106 in an annular manner, and the impeller blades 11
4 (to the right in Figures 1 and 2). A fluid outlet opening 140 is formed at the top of the fluid casing 112 . Stator housing 1
22 is fixed to the forward end of the fluid casing 112 and annularly surrounds one or more impeller blades 114. Stator housing 122 is preferably horizontally split having an upper portion 142 and a lower portion 144. part 1
42 and 144 are preferably bolted along their horizontal flanges.

The partition wall 120 annularly surrounds the rotor 106 inside the stator housing 122 and also includes a
Upper half 1 bolted along the horizontal flange
46 and a lower half 150, it is preferably of the horizontally split type. The stator blades 116 are connected to the partition wall 120
and then the rotor blades 114,
114 and protrudes radially between them. Rotor 1
Preferably, a seal member is secured to the vanes 116 and projects radially inwardly to prevent leakage of fluid between the vanes 116 and the stator vanes 116.

Bulkhead 120 is radially spaced from stator housing 122 to permit radial thermal expansion.

Concentric holes 1 are formed in the partition wall 120 and the housing 122 to prevent rotation of the partition wall 120 and the stator blades 116 relative to the stator housing 122.
A dowel pin 152 is inserted through the holes 54 and 156. Preferably, the holes 156 are drilled radially through the wall of the stator housing to allow access to the Druepin 152 from outside the housing. Dowel pin 152 into hole 15
housing 1 by, for example, threading cap 160 into hole 156 to align it within hole 156 and prevent the dowel pin from exiting outwardly.
It can be detachably fixed to 22.

Fluid casing 112 is attached to machine frame 104
and an inner radial flange 162 annularly surrounding the rotor 106. The rotor seal 124 is attached to the flange 1 of the machine frame 104 and casing 112, preferably by bolts.
62 to close off the space between the machine frame, casing, and rotor 106 and prevent leakage of working fluid through that space. Rotor seal 124 has a plurality of axially threaded holes drilled near its periphery, some of the holes being aligned with axially threaded holes drilled in radial flange 162. The rotor seal is arranged so that bolts can be passed through these holes to fix the rotor seal to the flange 162. However, for reasons explained below, some of the threaded holes in rotor seal 124 are preferably located adjacent to the flat, unperforated surface of flange 162.

When operating the rotating machine 100, the introduction duct 164 is fixed to the front end of the fluid casing 112. Preferably, support means, such as a duct stand (not shown), is fixed to the duct 164 to support it and further support the front ends of the housing 122 and casing 112. Fluid is drawn through the introduction duct 164 and the vane 11
4,116. If machine 100 is a compressor, rotor blades 114 are rotated to compress fluid passing therethrough. Alternatively, if machine 100 is an expander, the fluid serves to rotate vanes 114. In either case, fluid passes through the vanes 114 and through the fluid casing 112 and exits through the exhaust opening 144 .

As previously mentioned, the impeller rotor 106 of rotating machines of the general type described above is removed from the machine from time to time for cleaning, maintenance, and the like. This often requires disassembling large parts of the machine. In accordance with the present invention, the machine
00 can be disassembled and assembled. 3rd~
FIG. 17 shows a preferred embodiment of the method and apparatus of the present invention for assembling and disassembling machine 100. Specifically, Figures 3-5 illustrate an apparatus for assembling and disassembling the stator housing lower portion 144. 6-9 illustrate apparatus for assembling and disassembling rotor seal 124 and disk end bearing 132. 10-16 show an apparatus for assembling and disassembling the impeller rotor 106.

Referring to FIGS. 3-5, stator housing 1
22. Specifically, assembling the lower part 144,
An apparatus 200 for disassembly is shown. The device 200 includes a rail 202 and a screw jack 204.
, the support column 206 , the jack support 210 , the guide rod 212 , and the wheels 214 , 216 , 220
It is preferable to have the following. device 20
0 further includes a lower portion 144 of the stator housing.
a flange 222 projecting radially outward from the
Includes a flange 224 at the top of the strut 206. The jack support stand 210 is fixed to the support column 206, and the jack 204 is mounted on the support stand 210. A plate 226 is attached to the top of the jack. With this configuration, the plate 226 can be moved up and down with respect to the support base 210 by expanding and contracting the screw jack 204.

1-5, to remove stator housing 122, position struts 206 proximate opposite sides of housing 122 as shown in FIG.
over the flange 222 of the housing. Flanges 222 and 224 are then joined by any conventional means such that struts 206 provide additional support to stator housing 122. Flanges 222 and 224 are preferably drilled with a plurality of vertical holes (not shown) that are aligned with each other when strut 206 is positioned proximate housing 122. Next, the flange 222
and 224 are fastened by passing bolts through the aligned holes. The guide rod 212 is then lowered through the alignment holes in the flanges 222, 224 and impinges on the support 210 of the post 206. Guide rod 212 moves housing portion 144 into a third position.
It guides the movement between the assembly position shown in the figure and the rail 202.

With stator housing 122 supported by struts 206, inlet duct 164 is removed from the stator housing and removed in any suitable manner, such as by an overhead crane. Cap 16 attached to upper portion 142 of fixed housing
0 and dowel pin 152 to release housing portion 142 from upper bulkhead portion 146.
The upper portion 142 of the stator housing is then removed from the lower portion 144 of the housing and removed in any suitable manner, such as by an overhead crane. Next, the upper bulkhead portion 146 is replaced with the lower bulkhead portion 1.
50 and hoisted and removed from machine 100, preferably by an overhead crane. Next, the pair of rails 202 are brought close to the machine 100 and the support columns 20
6 and 206 on the base plate 102, and fixed to the base plate with bolts or the like. If the rail 202 projects a significant distance in front of the base plate 102, a support member (not shown) may be provided for that projecting portion of the rail. Preferably, rail 202 extends parallel to the axis of rotor 106. The screwdriver 204 is then extended to raise the plate 226 against the stator housing flange 222.

Lower stator housing portion 144 is then unbolted and released from fluid casing 112 and flange 222 is released from flange 224. Thus, housing portion 144 and bulkhead portion 1
50 is in a state where it can be freely lowered. Plate 226 and housing portion 14 are then removed by retracting screwdriver 204.
4, and lowering bulkhead portion 150 toward rail 202. Before engaging stator housing portion 144 to rail 202, wheels 214, 216, 220 are secured to the housing portion. wheel 2
14 is disposed alongside the housing portion 144, and the wheels 216 are disposed laterally and in front of the housing portion;
Preferably, the wheels 220 are arranged laterally and rearwardly of the housing part. This configuration allows lower housing portion 144 and lower bulkhead portion 150 to
giving them very stable support when moving along the 02.

As will be apparent to those skilled in the art, the wheels 214, 21
6,220 may be secured to housing portion 144 in any suitable manner. As shown in FIG. 5, wheels 214 are secured to housing portion 144 via brackets 228 and front wheels 21
6 is fixed to the housing portion via a leg 230 extending forward, a plate 232 and a flange 222, and the rear wheel 220 is an arm 234 extending backward.
Preferably, it is secured to the housing portion via a bracket 236.

Once the wheels 214, 216, 220 are secured in position, the screw jack 204 is retracted to lower the lower housing portion 144 onto the rail 202 as shown in FIGS. Once lower housing portion 144 is seated on rail 202, guide rod 212 is withdrawn to release the housing portion for movement along rail 202. Next, the support column 206 is carried out, and thereby the screw jack 204 and the support base 2
10, flange 224, and plate 226 are preferably removed. Stator housing portion 144 and bulkhead portion 150 are then manually transported from machine 100 along rails 202 to a disassembly position where they can be easily manipulated by an operator or a parts handling device such as a crane. From there, housing portion 144 and septum portion 150 are transported to a remote location. Rails 202 are preferably left in place, as they will be used for subsequent disassembly of machine 100, as described below.

Either rail 202 includes at least one assembly/disassembly device 200 for guiding movement of the lower housing portion 144 along the rail 202.
Preferably, a longitudinal flange 240 is provided which cooperates with a groove 242 formed in one wheel. According to the preferred embodiment shown, housing part 1
44 remains in its axial orientation as it moves between the assembled and disassembled positions. That is,
As housing portion 144 is moved between assembled and disassembled positions, its axis remains substantially parallel to the axis when assembled within machine 100.

After removing the inlet duct 164, bulkhead 120, and stator housing 122, the next disassembly step of the machine 100 is to remove the rotor 124, disc end bearing 1
32, the intermediate bearing housing 134 and the coupling end bearing 136 are removed. Coupling end bearing 136 and intermediate bearing housing 1
34 can be easily removed in any suitable manner, for example by a crane and cable introduced into the space directly above them. Therefore, there is no need to explain in detail how these parts are taken out.

6-9, an apparatus for assembling and disassembling rotor seal 124 and disk end bearing 132 in accordance with a preferred embodiment of the present invention is shown. Generally speaking, the apparatus 300 includes a carrier rod 302 and a disk end bracket 30.
4, a coupling end bracket 310, and a turnbuckle 312, further comprising an axial hole 314 drilled in the rotor seal 124, a vertical hole 316 formed in the disk end bearing 132, and a shaft extending from the turnbuckle 312. 312, and cylindrical bearing means 322,324. Hole 3
16 and the shaft 320 are threaded to engage with each other, the inner diameters of the bearing means 322 and 324 are approximately equal to the outer diameter of the carrier rod 302, and the outer diameter of the bearing means 322 is approximately equal to the diameter of the hole 314. It is preferable to do so. When machine 100 is in operation, a plate (not shown) is secured that closes hole 314 in seal 124 to prevent working fluid from leaking through hole 314 .

Referring specifically to FIG. 7, the disk end bracket 304 has an aperture 326 that connects the fluid casing 112, preferably to the flange 1 thereof.
It is removably fixed to the front radial surface of 62. This bracket is preferably secured in place during initial assembly of machine 100 and prior to initial positioning of rotor seal 124 and disk end bearing 132 within the machine. Next, referring to FIG. 8, the coupling end frame 3
06 includes a pair of feet 330, a pair of legs 332 extending upward and parallel from the feet, a top transverse member 334 extending between the top ends of the legs, and a brace 336. We are prepared. The coupling end bracket 310 has an aperture 340 and depends downwardly from the cross member 334 and connects the coupling plate 34.
2 and bolts 344 or the like to the transverse member.

Rotor seal 124 and disk end bearing 13
2 from the machine 100, the coupling end frame 306 is secured to the machine frame 104. 6 and 8, the feet 330 of the coupling end frame 306 are placed on both side members of the machine frame 104, and the cross members 330
The coupling end 130 of the impeller rotor 106
extending across the top of the coupling end bracket 310 to axially align the hole 340 in the coupling end bracket 310 with the hole 326 in the disk end bracket 304.
Next, the foot 330 and thus the support frame 306 are attached to the machine frame 106 by, for example, bolts 346.
Fixed to.

The aforementioned plate (not shown) closing the hole 314 of the rotor seal 124 is removed, and the rotor seal is released from the casing 112 and the machine frame 104 (bolts etc. are removed so that it can be moved freely). ) and release the disk end bearing 132 from the machine frame 104. Next, referring to FIG. 9, a plurality of threaded tension rods 35
0 (only one shown in FIG. 9) is threaded through the axially threaded hole in the rotor seal 124 and impinges on the rear surface of the radial flange 162. Further rotation of these tension rods with their tips abutting flanges 162 causes rotor seals 124 to be pulled axially along the tension rods from their FIG. 2 assembled position, as is well known. be separated. Once the rotor seal 124 has been pulled axially away from the radial flange 162 a sufficient distance to a position that allows it to be lifted slightly upwardly, the plurality of threaded tension rods 352 can be removed from the rotor seal. 124 through the vertical threaded hole (FIG. 9), and the tip of the rod abuts against the top surface of the machine frame 104. These tension rods are rotated further to tighten the rotor seal 124 to the machine frame 104.
Pull up from. The rotor seal has its hole 314 aligned with hole 326 in disk end bracket 304 and hole 340 in coupling end bracket 310. Preferably, it is lifted to the lifting position shown in Figures 6 and 7.

Next, the bearing means 322 is inserted into the hole 31 of the rotor seal.
4 and fixed to the seal by conventional means so as to move axially integrally with the seal. For example, the bearing means 322 may be attached to the seal 12 by a retaining ring 354, a plate 356 and a bolt 360.
Combine with 4. Turnbuckle 312 is bolt 3
62 to the bearing means 324. next,
The front end of the carrier rod 302 is passed through the hole 340 in the coupling end bracket, and then the bearing means 324 to which the turnback 312 is secured is fitted onto the front end of the carrier rod 302. The carrier rod is then advanced axially forward into fluid casing 112 and through hole 314 in the rotor seal and hole 326 in disk end bracket 304. A thread is cut into at least the rear end of the carrier rod, and a pair of nuts 364, 366 are inserted into the rear end of the carrier rod so as to sandwich the coupling end bracket 310.
It is preferable to screw it on. If you position the carrier rod correctly, nuts 364,366
is tightened against bracket 310 as shown in FIG. 6 to prevent accidental axial movement of the carrier rod.

Thus, once the rotor seal 124 is supported by the carrier rod 302, the tension rods 350, 352 can be removed. Then bearing means 324 and turnbuckle 312
is moved axially along carrier rod 302 to vertically align threaded shaft 320 with hole 316 in disk end bearing 132. Next, the turnbuckle 312 is extended and the shaft 320 is inserted into the hole 31.
Screw it into 6. Once the shaft 320 is firmly engaged with the disk end bearing 132, the disk end bearing 132 is released from the machine frame 104, the turnbuckle 312 is retracted, and the disk end bearing is moved from the assembled position of FIG. , 7 to the lifting position shown in Figure 7.

The disk end bearing 132 and rotor seal 124 are then slid axially rearward along the carrier rod 302 to a disassembled position that is easily accessible by an operator. Preferably, rotor seal 124 and disk end bearing 132 extend completely out of fluid casing 112. Rotor seal 12
4 out of the casing 112, the seal is supported independently of the carrier rod 302, for example by an operator or an overhead crane. Loosen the nut 364 and remove the carrier rod 30.
2 is pulled axially rearward through holes 326, 314 to release rotor seal 124 from the carrier rod. The rotor seal 124 may then be further removed from the machine 100 by hand or by conventional parts handling equipment.

Once the rotor seal 124 is removed from the carrier rod 302, the bearing means 324 is withdrawn from the carrier rod and the turnbuckle 312 and disc end bearing 132 are removed from the bearing means 324. Next, this bearing 324, turnbuckle 31
2 and disk end bearing 132 can be transported to a remote location. Nut 364 to carrier rod 3
Remove it from 02 and insert the carrier rod itself into hole 340.
through it and pull it backwards to remove it from the machine 100.
The disk end bracket 304 is then manually released from the fluid casing 112 and removed from the machine 100. The coupling end bracket 310 is similarly unbolted and removed from the coupling end support frame 306. Coupling end frame 306 is preferably left in place since it is also used to remove rotor 106 from machine 100, as described below. with this,
The rotating machine 100 is in a partially disassembled state as shown in FIG.

As mentioned above, rotor seal 124 and disk end bearing 132 are quickly and easily removed from machine 100. Moreover, the illustrated preferred embodiment maintains the axial orientation of rotor seal 124 and disk end bearing 132 as they are moved between their assembled and disassembled positions. Specifically, as rotor seal 124 is moved between its assembled and disassembled positions, its longitudinal axis, i.e., rotor 1 when rotor 106 and rotor seal are assembled within machine 100
The axis of the rotor seal parallel to the axis of 06 is maintained substantially parallel to the longitudinal axis of the seal when assembled. Similarly, when the disc end bearing 132 is moved between its assembled and disassembled positions, its longitudinal axis, i.e., the axis of the disc end bearing when the rotor 106 and the disc end bearing are assembled in the machine. The axis of the disk end bearing parallel to is maintained substantially parallel to the assembled longitudinal axis of the bearing.

Thus, the machine 100 includes an impeller rotor 10
6 can now be removed. 11th to 1st
Referring to FIG. 6, the rotor assembly/disassembly device 400
It is shown. The apparatus 400 includes a disk end jig 402, a coupling end jig 404, a coupling end carriage 406, a rail means 202, and a groove 410 formed in the top surface of the machine frame 104.
(Fig. 13). Disc end jig 40
2 includes a disk end frame 412, a screw jack 414, a bracket 416, and a wheel 420.
and a cap 42 configured to fit over and around the disk end 126 of the rotor 106.
2. Coupling end carriage 40
6 includes a support yoke 424, a foot 426, and a wheel 430, and the coupling end jig 40
4 is the above-mentioned coupling end frame 306;
Screw jack 432 and lifting yoke 434
It is equipped with Yoke 434 is comprised of a separable upper half 436 and lower half 440 (FIG. 12).

Especially when explained with reference to FIGS. 11 and 14,
The disk end frame 412 has a pair of feet 442.
, a pair of legs 444 , a transverse beam 446 , and a brace 450 . Foot portion 442 is supported by wheels 420 rotatably connected thereto. Legs 444 extend upwardly from foot 442, and cross member 446 is supported by and extends between the top ends of legs 444. Brace 430 is stretched between leg 444 and the cross member to further support the cross member. screw jack 41
4 is fixed to the transverse member 446 and extends upwardly therefrom. A bracket 416 is secured onto the jack 414 and a cap 422 is secured to the bracket 416. As a result, the bracket 416 and the cap 422 are expanded and contracted by the screw jack 414.
is raised and lowered relative to the disk end frame 412.

Referring to FIGS. 11 and 12, coupling end jig 404 will be described in detail. A screw jack 432 is attached to and extends downwardly through the cross member 334 of the coupling end frame 306 to laterally move the movable plate 452 of the jack. located below the member. The lifting yoke 434 is fixed to the plate 452 in any suitable manner so as to move up and down integrally therewith. According to this configuration, the lifting yoke 434 can be raised and lowered by expanding and contracting the jack 432, as will be apparent to those skilled in the art. 1st
Referring to Figures 1, 13 and 15, the coupling end carriage 406 is detailed in that a pair of parallel legs 426 are supported by wheels 430 rotatably mounted thereto. Support yoke 424
extends transversely between a pair of legs 426 and is secured thereto in any conventional manner.

To remove rotor 106 from machine 100, disk end jig 402 can be positioned on rail 202 and jig 402 can be moved along the rail a limited distance in a direction toward and away from machine 100. Support as follows.

Disk end jig 402 along rail 202
Either rail 20 is attached to one or more wheels 420 of the jig to guide the movement of the jig.
A groove 454 is formed that cooperates with the flange 240 of No. 2. Once the disk end jig 402 is positioned on the rail 202, the screw jack 414 is adjusted to position the cap 422 at a height that will fit over and around the disk end 126 of the rotor 106. The disk end jig 402 is then moved along the rail 20 toward the rotor 106, and the cap 422 is attached to the disk end 126 of the rotor.
The end of the disc is brought into contact with the end of the disc and is fitted over the end of the disc. The cap 422 is then removably attached to the disk end 1 by suitable means such as bolts 456.
Fixed at 26.

Next, the coupling end jig 404 is assembled.
Specifically, the lower half 440 of the lifting yoke 434
is slid onto the underside of the coupling end 130 of the rotor 106 and the upper half 436 of the yoke is positioned over the lower half and onto the upper surface of the rotor. Then, the halves 440 and 43 of the lifting yoke 434
6 and are combined as shown in FIG. A screw jack 432 is attached to the frame 306, and a movable plate 452 of the jack is positioned below the horizontal member 334. Movable plate 452 that jacks the yoke 434
Fixed to. The disk end jig 402 and coupling end jig 404 are now used to lift the disk end 126 and coupling end 130, respectively, of the impeller rotor 106 from the rotor assembly position of FIG. 10 to the lifting position of FIG. 11. Specifically, the screw jack 414 of the disk end jig 402
is extended to raise cap 442 and rotor disk end 126. At the same time, the screw jack 432 of the coupling end jig 404 is retracted to lift the lifting yoke 434 and rotor coupling end 130.

Once the impeller rotor 106 is thus raised to the raised position, the brace 460 (fourteenth,
16) as the horizontal member 446 of the disk end jig 402.
and caps 422 to provide them with additional support. Next, position the coupling end carriage 406 on the machine frame 104,
The support yoke 424 is attached to the coupling end 13 of the rotor.
0 and the yoke 424 and thus the coupling end carriage 406 are removably secured to the rotor 106 by, for example, bolts 462. Preferably, at least one of the wheels 430 of the carriage 406 fits within the groove 410 to guide movement of the carriage 406 and coupling end 130 along the machine frame 104. The coupling end 130 of the rotor 106 is connected to the carriage 4.
06, screw jack 4
32 from the lifting yoke 434 and coupling end frame 306 and removed from the machine 100.

Next, the disk end jig 402 is attached to the rail 202.
along the machine 100, thereby pulling the rotor 106 along the machine frame 104 through the fluid casing 112 to the disassembled position shown in FIG. In this disassembled position, rotor 106 can be easily manipulated by an operator or other parts handling equipment. In this way, the rotor can be easily moved to a disassembled position where the rotor and its vanes 114 can be inspected or repaired, or they can be removed from the disk end jig 40.
After being released from 2, it can be transferred from the disassembled position to another department with facilities for rotor inspection and repair. Additionally, in the preferred embodiment, flanges 240 of rail 202 and grooves 410 of machine frame 104, among other things, guide movement of impeller rotor 106 so that its axis remains stable while the rotor is moved between assembled and disassembled positions. The directional orientation remains the same, ie, substantially parallel to the axis when assembled within the machine 100.

To reassemble machine 100, the disassembly described above can be performed in substantially the reverse order. That is, the coupling end carriage 406 is secured to the coupling end 130 of the rotor 106, the lifting yoke 434 is mounted around the rotor, the rotor is positioned as shown in FIG. 406 onto the machine frame 104 and one of the wheels 430 fits into the groove 410. A disk end jig 402 including a brace 460 is mounted on the rail 202 and secured to the disk end 126 of the rotor 106 by a cap 422. Any device used to move the rotor to the position shown in FIG. 16 is now released and removed from the rotor. Next, attach the disk end jig 402 to the rail 2
02 towards the machine 100 and push the rotor into the machine. Meanwhile, flanges 240 on rail 202 and grooves 410 on machine frame 104 guide movement of the impeller rotor and maintain its axial orientation. While rotor 106 is in the raised position shown in FIG. Remove from. Disc end screw 414 is retracted and coupling end screw 432 is extended to lower rotor 106 to its assembled position. Once the rotor is lowered, the cap 422 is attached to the disk end 126 of the rotor.
and lift the screw jack 432 to release it from the yoke 434. Next, the disk end jig 4
02, screw jack 432 and lifting yoke 4
34 from machine 100.

Next, the rotor seal 124, the disk end bearing 1
32. Assemble intermediate bearing housing 134 and coupling end bearing 136 into position. 6th,
Referring to FIG. 7, a disk end bracket 304 is secured to the radial flange 162 of the fluid casing 112 and a coupling end bracket 310 is secured to the coupling end frame 306. Insert the front end of carrier rod 302 through hole 340 in coupling end bracket 310. The bearing means 324 with the turnbuckle 312 and coupling end bearing 132 attached is first
The forward end of the carrier rod 302 is a slip fit and the forward end of the rod is then inserted into the bearing means 322 to which the rotor seal 124 is connected. The carrier rod 302 is then inserted axially into the fluid casing 112 and through the hole 326 in the disk end bracket 304.

The rotor seal 124 and disk end bearing 132 are then moved along the carrier rod 302 to the raised position shown in FIGS. Turnbuckle 312 is extended to lower disk end bearing 132 to its assembled position. The disk end bearing 132 is secured to the machine frame 104 and the turnbuckle 312 is retracted to remove the disk end bearing from the machine frame. Threaded tension rod 3
52 downwardly through the vertical hole in the rotor seal 124 so that it collides with the top surface of the machine frame 104 (FIG. 9), and the rotor seal is attached to the carrier rod 3.
Supported independently of 02. The carrier rod 302, bearing means 324, and turnbuckle 312 are then axially retracted and removed from the machine 100.

Next, pull the tension rod 352 onto the rotor seal 124.
After lowering the seal onto the machine frame 104 by screwing it back through the vertical holes in the seal, the tension rods can be removed. Similarly, bearing 3
22 and the means connecting the bearing to rotor seal 124 can also be removed. The rotor seal 124 is then moved axially along the machine frame 104 to its assembled position. Guide rods may be inserted through aligned axial holes in the rotor seal and radial flange 162 of the fluid casing 112 to guide axial movement of the rotor seal to the assembled position. Rotor seal 12
4 is secured to the machine frame 104 and radial flange 162. Hole 314 in seal 124 is closed with a plate and the plate is secured to the seal. The coupling end frame 306 with the coupled coupling end bracket 310 attached is released from the machine 100 and removed. The intermediate bearing housing 134 and coupling end bearing 136 are then assembled in place in a conventional manner.

Referring to FIGS. 3, 4, and 5, the next step in reassembling the machine 100, the assembly of the stator housing 122, will be described. Lower stator housing portion 144 with bulkhead portion 150 and wheels 214, 216, 220 attached is mounted on rail 202;
along the rail to a position immediately in front of the fluid casing 112. screw jack 204
The strut 206 equipped with the flange 206 is positioned on the outside of the rail 202 proximate the lower stator housing portion 144, and the plate 226 is positioned directly below the flange 222.
Flange 224 is then aligned over flange 222. Guide rod 212 is connected to flange 224 of strut 206 and lower stator housing portion 14.
4 through the radial flange 222. Screw 204 is then extended to lift lower stator housing portion 114 and lower bulkhead portion 150 from rail 202 . Screws 204 are further extended to raise stator housing portion 144 to its assembled position and abut radial flange 222 against upper flange 224 .

Flanges 222 and 224 are joined, guide rod 212 is removed, and lower stator housing portion 14 is removed.
2 is fixed to the fluid casing 112. The rail 202 can now be removed. Upper bulkhead section 146 and upper stator housing section 142
returned to the assembly position, for example by an overhead crane,
are secured to lower bulkhead portion 150 and fluid casing 112, respectively. Then, the upper bulkhead portion 14
6 and upper stator portion 142 with dowel pins 152 and caps 160, respectively. Upper and lower stator housing portions 142, 14
4 is fixed in place, the introduction duct 164 is fixed to the stator housing 122. As previously mentioned, support means (not shown) are preferably secured to the inlet duct to support the inlet duct 164 and provide additional support to the forward end of the stator housing 122 and fluid casing 112. After providing this additional support, the flange 224 of the strut 206 is connected to the flange 224 of the stator housing 122.
2 and remove the strut and screw 204 from the machine 100. Machine 100 is now reassembled and ready for operation.

As described above, the assembly/disassembly method and apparatus of the present invention allows machine 100 to be disassembled and reassembled quickly and easily. machine 100
The rails 202, grooves 410, and carrier rods 302 are used to maintain the axial orientation of the parts as they are moved between the assembled and disassembled positions. It can facilitate re-centering and greatly reduce the effort required to do so. Further, according to the method of the present invention, the machine frame 104
and does not require moving or disassembling any part of the fluid casing 112, facilitating disassembly and reassembly operations of the machine 100;
And speed it up.

The preferred embodiments of the present invention have been described above, but
It should be understood that the present invention is not limited thereto, and that various changes and modifications can be made without departing from the spirit and scope of the invention.

[Brief explanation of the drawing]

Fig. 1 is a side view of the rotating machine to which the present invention is applied, Fig. 2 is a partially cutaway side view of the rotating machine shown in Fig. 1, and Figs. 3 and 4 are the rotation of the rotating machine shown in Figs. 1 and 2. A front view of the child and the lower part of the stator housing, and a device for assembling and disassembling the lower part of the stator housing, FIG. 5 is the rotating machine of FIGS. 1 and 2, and the assembly of FIGS. 3 and 4.・A partial side view of a disassembly device; FIG. 6 is a partial side view of the rotating machine shown in FIGS. 1 and 2, and a device for assembling and disassembling the rotor seal and disc end bearing of the rotating machine; FIG. FIG. 6 is an enlarged sectional view showing details of the rotor seal and disk end bearing; FIG. 8 is an end view of a portion of the rotating machine of FIGS. 1 and 2; and the assembly/disassembly apparatus of FIGS. 6 and 7. The coupling end frame is shown. Figure 9 is a side view of a portion of the rotor seal and fluid casing of the rotating machine in Figures 1 and 2;
Figure 0 is a view similar to Figure 2, but showing the rotating machine partially disassembled. Figure 11 is the first
0 is a side view of the partially disassembled rotating machine and the apparatus for assembling and disassembling the rotor of the rotating machine; FIG. 12 is a front view of the coupling end jig of the assembly/disassembly apparatus of FIG. 13 is a plan view of the rotating machine and rotor assembly/disassembly device shown in FIG. 11, FIG. 14 is a front view of the rotating machine and rotor assembly/disassembly device shown in FIG. FIG. 16 is a view similar to FIG. 11, but with the rotor in the disassembled position. In the figure, 100 is a rotating machine, 104 is a machine frame, 106 is an impeller rotor, 112 is a fluid casing, 122 is a stator housing, 124 is a rotor seal, 126 is a disk end, 130 is a coupling end, and 132 is a disk end. Bearing, 142 is the upper part of the housing, 144 is the lower part of the housing, 150 is the lower half of the bulkhead, 202 is the rail, 204 is the screw jack, 206 is the strut, 21
2 is a guide rail, 222 is a flange, 302 is a carrier rod, 304 is a disk end bracket,
306 is a coupling end frame, 312 is a turnbuckle, 350 is a tension rod, 352 is a tension rod, 402 is a disc end jig, 404 is a coupling end jig, 406 is a carriage, 410 is a groove, 412 is a disc end frame, 414 is a screw jack. , 416 is a bracket, 422 is a cap, 424 is a support yoke, 426 is a foot portion, 430
is a wheel, 432 is a screw jack, and 434 is a lifting yoke.

Claims (1)

[Scope of Claims] 1. A machine frame, a bearing device supported by the machine frame and including a disk end bearing, and an axial rotor rotatably supported by the bearing device; impeller blades projecting radially outward from the rotor; a fluid casing annularly surrounding the rotor and the machine frame; and a rotor extending between the rotor, the machine frame, and the fluid casing. a lower portion 150 of the stator housing 122 in an assembly and disassembly apparatus for use in a rotating machine having a seal and a horizontally split stator housing secured to the fluid casing and surrounding the impeller blades;
a lower portion of the stator housing in a vertical direction between the rail means and the stator housing assembly position; means 204, 212 for moving the
an axial carrier for movably supporting the rotor seal 124 between a seal lifting position and a seal disassembly position and for supporting the disc end bearing 132 between a bearing lifting position and a bearing disassembly position; 302, means 304, 606 for supporting the carrier, means 350, 352 for transporting the rotor seal between a seal assembly position and a seal lifting position, and means 350, 352 for moving the disc end bearing 132 into a bearing assembly position. and means 312 for moving the disc end 12 of the rotor between the bearing lift position and the rotor disk end 12 supported by the rail means.
6 for vertically moving the disc end between a rotor assembly position and a rotor lifting position, and for moving the rotor through the fluid casing to the rotor lifting position and rotation. a disk end jig 402 for horizontally moving the rotor coupling end 130 between a rotor assembly position and a rotor disassembly position; a coupling end jig 404 for moving the rotor coupling end 130 between a rotor assembly position and a rotor disassembly position; a coupling end carriage 406 supported by a frame to support the coupling end of the rotor as the rotor is moved between a rotor lifting position and a rotor disassembly position. Assembly/disassembly equipment. 2 Lower portion 15 of the stator housing 122
Means 206 for supporting 0 in the rotor assembly position
and the means 304, 306 for supporting the carrier 302 include a disk fixed to and extending radially inwardly from the fluid casing for supporting a first end of the carrier. an end bracket 304 and a coupling end frame 3 supported by the machine frame 104 for supporting the second end of the carrier.
06, said means 312 for moving the disc end bearing 132 between a bearing assembly position and a bearing lifting position, said means 312 being supported by said carrier, and said means 312 for raising and lowering said disc end bearing. 312, and the disk end jig 402 includes a disk end frame 412 supported by the rail means so as to be movable within a certain limit in a direction toward or away from the rotating machine 100. , a cap 422 removably connected to the disk end 126 of the rotor, and adjustable means 414 connecting the cap to the disk end frame to enable varying the height of the cap and the disk end. , 416, the coupling end jig 404 includes a lifting yoke 434 extending below the rotor coupling end 130, and a lifting yoke 434 extending from the lifting yoke 434 to vertically move the lifting yoke and the coupling end. The coupling end carriage 406 includes a lifting means 432 coupled to the coupling end frame, the coupling end carriage 406 supporting a support yoke 424 removably coupled to the rotor coupling end 130, and supporting the support yoke. Machine frame 10
4. The assembly and disassembly apparatus of claim 1 including a coupling end carriage (406) supported on said machine frame for movement along said machine frame. 3. An assembly for use in a rotating machine having a rotatable impeller rotor extending in the axial direction, a fluid casing surrounding the rotor in an annular shape, and a machine frame for supporting the rotor and the casing. a disassembly device, removably coupled to a disc end 126 of the rotor for vertically moving the disc end between a rotor assembly position and a rotor lifting position; disk end jig 402 to horizontally move the rotor through the fluid casing between a rotor lifting position and a rotor disassembly position.
a coupling end jig 404 for moving the rotor coupling end 130 between a rotor assembly position and a rotor disassembly position; and a coupling end jig 404 supported by the machine frame such that the rotor is and a coupling end carriage 406 for supporting the coupling end of the rotor as it is moved between the rotor disassembly position and the rotor disassembly position.
Assembly equipment. 4 a rail 202 disposed substantially parallel to the axis of the rotor in close proximity to the rotating machine to guide movement of the disk end jig in a direction away from or toward the rotating machine; , comprising a groove 410 formed in a surface of the machine frame substantially parallel to the axis of rotation for guiding movement of the coupling end carriage 406 along the machine frame. The assembly/disassembly device described in item 3. 5 The disk end jig 402 is connected to the rotating machine 1.
a disk end frame 412 supported by the rail means so as to be movable within a certain limit in a direction toward or away from the rotor; and a cap 422 detachably connected to the disk end 126 of the rotor. and adjustable means 4 for connecting the cap to the disk end frame to enable varying the height of the cap and the disk end.
14,416. The assembly/disassembly apparatus according to claim 4, which comprises: 14,416. 6 The coupling end jig 404 is connected to the machine 1.
a coupling end frame 306 supported by a coupling end frame 306, a lifting yoke 434 surrounding the rotor coupling end 130, and a lifting yoke attached to the coupling end frame for vertically moving the lifting yoke and the coupling end. 4. An assembly/disassembly apparatus according to claim 3, which includes a connecting lifting means 432. 7. The coupling end carriage 406 includes a plurality of spaced apart feet 426, a support yoke 434 coupled to and extending between the feet, and a support yoke 434 extending between the feet. means 46 for removably connecting to said coupling end of the rotor;
2, and a plurality of wheels 4 rotatably connected to the foot and movably supported on the machine frame.
3. The assembly/disassembly apparatus according to claim 3, wherein the assembly/disassembly apparatus includes: 30.