CN118218944A - Dismounting device for heavy-duty gas turbine holding ring eccentric pin - Google Patents
Dismounting device for heavy-duty gas turbine holding ring eccentric pin Download PDFInfo
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- CN118218944A CN118218944A CN202410484376.8A CN202410484376A CN118218944A CN 118218944 A CN118218944 A CN 118218944A CN 202410484376 A CN202410484376 A CN 202410484376A CN 118218944 A CN118218944 A CN 118218944A
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- 238000012545 processing Methods 0.000 claims abstract description 7
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- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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Abstract
The application provides a dismounting device of a heavy-duty combustion engine holding ring eccentric pin, wherein the dismounting device comprises the following steps: the bottom holding ring eccentric pin dismounting device and the top holding ring eccentric pin dismounting device; wherein, top holds ring eccentric pin dismouting device includes: the top screw rod, the top bearing, the top support plate, the top guide rod, the top nut and the top flat washer are arranged on the top support ring eccentric pin dismounting device; the bottom holds ring eccentric pin dismouting device includes: the bottom screw rod, the bottom bearing, the bottom extension board, the bottom guide bar, the bottom nut and the bottom flat washer, be provided with cylindrical spring on the bottom guide bar, cylindrical spring is used for preventing that bottom from holding the eccentric pin of ring and holding the eccentric pin dismouting device of ring and being used for holding the eccentric pin of ring to the bottom of heavy-duty combustion engine and carrying out dismouting processing, solves the technical problem that heavy-duty combustion engine held the eccentric pin of ring and can't swiftly demolish the assembly among the prior art.
Description
Technical Field
The application relates to the technical field of heavy-duty gas turbines, in particular to a device for disassembling and assembling a holding ring eccentric pin of a heavy-duty gas turbine.
Background
Currently, the main functions of the heavy-duty gas turbine holding ring are to provide the outer runner profile required by the gas turbine working runner, fix the stationary vanes and ensure the dynamic and static gaps. After the holding ring is installed on the cylinder, the holding ring must be kept concentric with the center line of the rotor, so that the normal operation of the gas turbine is ensured, and the center adjustment eccentric pin of the holding ring is a center adjustment device of the holding ring.
In the related art, the center adjusting eccentric pin mainly comprises an eccentric bolt and a guide slide block, wherein the eccentric bolt is composed of two sections of cylinders which are not on the same axis, the two sections of cylinders are arranged in round holes on the vertical surface of the combustion pressure cylinder, the center guide slide block connected with the eccentric bolt is arranged in a groove on the vertical surface of the holding ring, in practical design, the guide slide block is fixed in the groove on the vertical surface of the holding ring and can only freely move in the axial direction, and is limited by the holding ring in the horizontal direction, and when the eccentric bolt rotates, the center guide slide block can horizontally move together with the holding ring due to the limitation of the holding ring, so that the center adjustment of the holding ring is realized.
In this way, the eccentric bolt of the central adjusting eccentric pin is arranged in the round hole on the vertical surface of the combustion pressure cylinder, and the central guiding sliding block connected with the eccentric bolt is arranged in the groove on the vertical surface of the holding ring, so that the difficulty brought to the disassembly and assembly of the central adjusting eccentric pin of the holding ring is caused, the central adjusting eccentric pin of the holding ring cannot be disassembled and assembled conveniently and quickly, and the maintenance and operation of the heavy gas turbine are influenced.
Disclosure of Invention
The present application aims to solve at least one of the technical problems in the related art to some extent.
Therefore, the application aims to provide a dismounting device for the heavy-duty gas turbine holding ring eccentric pin, so as to realize convenient and quick dismounting and mounting of the holding ring center adjusting eccentric pin of the heavy-duty gas turbine and ensure flexible maintenance and operation of the heavy-duty gas turbine.
In order to achieve the above object, an embodiment of the present application provides a device for assembling and disassembling a heavy duty gas turbine holding ring eccentric pin, including: the bottom holding ring eccentric pin dismounting device and the top holding ring eccentric pin dismounting device; wherein, the top holds ring eccentric pin dismouting device includes: the top screw rod, the top bearing, the top support plate, the top guide rod, the top nut and the top flat washer, and the top holding ring eccentric pin dismounting device is used for dismounting the top holding ring eccentric pin of the heavy-duty gas turbine; the bottom holding ring eccentric pin dismounting device comprises: the bottom screw rod, bottom bearing, bottom extension board, bottom guide bar, bottom nut and bottom plain washer, be provided with cylindrical spring on the bottom guide bar, cylindrical spring is used for preventing bottom holds the ring eccentric pin and drops fast under the effect of gravity the bottom holds ring eccentric pin dismouting device and is used for carrying out dismouting processing to the bottom of heavy-duty gas turbine and holds the ring eccentric pin.
The application provides a dismounting device for a heavy duty gas turbine holding ring eccentric pin, which comprises: the eccentric round pin dismouting device of ring and the eccentric round pin dismouting device of ring are held at top are held to the bottom, wherein, the eccentric round pin dismouting device of ring is held at top includes: top screw rod, top bearing, top extension board, top guide bar, top nut and top plain washer, the eccentric round pin dismouting device is used for holding the eccentric round pin in top of heavy-duty combustion engine and carries out dismouting processing, the eccentric round pin dismouting device is held to the bottom includes: bottom screw rod, bottom bearing, bottom extension board, bottom guide bar, bottom nut and bottom plain washer, be provided with cylindrical spring on the bottom guide bar, cylindrical spring is used for preventing the bottom holds the eccentric pin of ring and drops fast under the effect of gravity the bottom holds the eccentric pin dismouting device of ring and is used for holding the eccentric pin of ring to the bottom of heavy-duty gas turbine and carries out dismouting processing, has solved among the prior art and has held the unable convenient and fast dismantlement of ring center adjustment eccentric pin and install, influences heavy-duty gas turbine's maintenance operation's technical problem to the convenient and fast dismantlement of the ring center adjustment eccentric pin of holding of realizing heavy-duty gas turbine is installed, guarantees heavy-duty gas turbine's nimble maintenance operation.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a dismounting device for dismounting a top ring-holding eccentric pin according to an embodiment of the application;
fig. 2 is a schematic structural view of a dismounting device for dismounting a bottom holding ring eccentric pin according to an embodiment of the application;
FIG. 3 is an enlarged view of a portion of the engagement of the tail threads of the screw provided by an embodiment of the present application;
FIG. 4 is an enlarged view of a portion of the junction of the screw head provided by an embodiment of the present application; and
Fig. 5 is a schematic view of a screw head locking sleeve according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
The dismounting device of the heavy duty gas turbine holding ring eccentric pin according to the embodiment of the application is described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a dismounting device for dismounting a top holding ring eccentric pin according to an embodiment of the application.
In the related art, the center adjusting eccentric pin mainly comprises an eccentric bolt and a guide slide block, wherein the eccentric bolt is composed of two sections of cylinders which are not on the same axis, the two sections of cylinders are arranged in round holes on the vertical surface of the combustion pressure cylinder, the center guide slide block connected with the eccentric bolt is arranged in a groove on the vertical surface of the holding ring, in practical design, the guide slide block is fixed in the groove on the vertical surface of the holding ring and can only freely move in the axial direction, and is limited by the holding ring in the horizontal direction, and when the eccentric bolt rotates, the center guide slide block can horizontally move together with the holding ring due to the limitation of the holding ring, so that the center adjustment of the holding ring is realized.
In this way, the eccentric bolt of the central adjusting eccentric pin is arranged in the round hole on the vertical surface of the combustion pressure cylinder, and the central guiding sliding block connected with the eccentric bolt is arranged in the groove on the vertical surface of the holding ring, so that the difficulty brought to the disassembly and assembly of the central adjusting eccentric pin of the holding ring is caused, the central adjusting eccentric pin of the holding ring cannot be disassembled and assembled conveniently and quickly, and the maintenance and operation of the heavy gas turbine are influenced.
Aiming at the problem, the embodiment of the application provides a dismounting device for a heavy-duty gas turbine holding ring eccentric pin, which is used for realizing convenient and quick dismounting and mounting of the holding ring center adjustment eccentric pin of the heavy-duty gas turbine and ensuring flexible maintenance operation of the heavy-duty gas turbine, and comprises the following components: the bottom holding ring eccentric pin dismounting device and the top holding ring eccentric pin dismounting device;
As shown in fig. 1, fig. 1 is a schematic structural diagram of a dismounting device for dismounting a top ring-holding eccentric pin, where the dismounting device for dismounting a top ring-holding eccentric pin includes: the top screw rod, the top bearing, the top support plate, the top guide rod, the top nut and the top flat washer are arranged on the top support ring eccentric pin dismounting device.
As shown in fig. 2, fig. 2 is a schematic structural diagram of a dismounting device for dismounting a bottom ring-holding eccentric pin, where the dismounting device for dismounting a bottom ring-holding eccentric pin includes: the bottom screw rod, the bottom bearing, the bottom extension board, the bottom guide bar, the bottom nut and the bottom flat washer are provided with a cylindrical spring on the bottom guide bar, the cylindrical spring is used for preventing the bottom holding ring eccentric pin from falling down rapidly under the action of gravity, and the bottom holding ring eccentric pin dismounting device is used for dismounting the bottom holding ring eccentric pin of the heavy-duty gas turbine.
Optionally, in some embodiments, the top screw and the bottom screw are provided with screw head threads and screw tail threads for preventing loosening of the top ring-holding eccentric pin and the bottom ring-holding eccentric pin when the top ring-holding eccentric pin and the bottom ring-holding eccentric pin are unscrewed.
For example, as shown in fig. 3 and fig. 4, fig. 3 is a partial enlarged view of the engagement of the screw tail threads provided by the embodiment of the present application, and fig. 4 is a partial enlarged view of the connection of the screw head provided by the embodiment of the present application, where the top screw is provided with a screw head thread and a screw tail thread, so that when the top ring-holding eccentric pin is screwed out, the head thread is locked on the top of the top ring-holding eccentric pin, and is not loosened, preventing the top ring-holding eccentric pin from falling off to damage the top ring-holding eccentric pin, and the bottom screw is provided with a screw head thread and a screw tail thread, so that when the bottom ring-holding eccentric pin is screwed out, the head thread is locked on the top of the bottom ring-holding eccentric pin, and is not loosened, preventing the bottom ring-holding eccentric pin from falling off to damage the bottom ring-holding eccentric pin.
Optionally, in some embodiments, a head lock sleeve is provided at the screw head junction of the top screw and the bottom screw.
Optionally, in some embodiments, a clip spring and a clip bead are provided on the head locking sleeve.
For example, as shown in fig. 5, fig. 5 is a schematic view of a screw head locking sleeve provided in an embodiment of the present application, where a head locking sleeve is designed at the joint of the screw head, and the head locking sleeve is provided with a clamp spring and a clamp bead. The hexagonal head of the eccentric pin can be fastened on the head of the screw rod through the structural design, and the eccentric pin is prevented from falling off.
The clamping springs and the clamping beads are arranged on the head locking sleeve of the top screw rod and used for enabling the head of the top screw rod to be tightly fastened with the hexagonal head of the top ring-holding eccentric pin so as to prevent the top ring-holding eccentric pin from falling off.
The clamping springs and the clamping beads are arranged on the head locking sleeve of the bottom screw rod and used for enabling the head of the bottom screw rod to be tightly fastened with the hexagonal head of the bottom ring-holding eccentric pin so as to prevent the bottom ring-holding eccentric pin from falling off.
Optionally, in some embodiments, when the top ring-holding eccentric pin removing process is performed based on the top ring-holding eccentric pin removing device, the top guide rod is screwed into the flange threaded hole of the upper half of the holding ring of the top ring-holding eccentric pin through the top support plate, the top gasket and the top nut.
Optionally, in some embodiments, a top nut is used to raise the top screw to drive the top ring eccentric pin.
Optionally, in some embodiments, when the bottom holding ring eccentric pin removing process is performed based on the bottom holding ring eccentric pin removing device, the bottom guide rod passes through the bottom support plate, the bottom gasket, the bottom nut, the cylindrical spring and the outer flange of the bottom holding ring eccentric pin and is screwed into the flange threaded hole of the lower half of the holding ring of the bottom holding ring eccentric pin.
Optionally, in some embodiments, a bottom nut is used to lower the bottom screw to lower the bottom ring-holding eccentric pin and the outer flange of the bottom ring-holding eccentric pin.
In this embodiment, through providing a dismouting device of heavy combustion engine ring eccentric pin, include: the eccentric round pin dismouting device of ring and the eccentric round pin dismouting device of ring are held at top are held to bottom, and wherein, the eccentric round pin dismouting device of ring is held at top includes: top screw rod, top bearing, top extension board, top guide bar, top nut and top plain washer, the top is held the eccentric round pin dismouting device of ring and is used for holding the eccentric round pin in top to heavy combustion engine and carries out dismouting processing, and the eccentric round pin dismouting device is held to the bottom includes: the bottom screw rod, the bottom bearing, the bottom extension board, bottom guide bar, bottom nut and bottom plain washer, be provided with cylindrical spring on the bottom guide bar, cylindrical spring is used for preventing that the bottom from holding the eccentric pin of ring and holding the eccentric pin dismouting device of ring and being used for holding the eccentric pin of ring to carry out dismouting processing to heavy gas turbine's bottom under the effect of gravity, this dismouting device that heavy gas turbine held the eccentric pin of ring can be in very short time effectually to holding ring center adjustment eccentric pin and dismouting, has saved the dismouting time, has improved production efficiency, has reduced the cost of labor.
In the embodiment of the application, the dismounting device of the heavy-duty gas turbine ring-holding eccentric pin can be used for quickly dismounting the ring-holding center adjustment eccentric pin (ring-holding eccentric pin) of the heavy-duty gas turbine, the bottom ring-holding eccentric pin dismounting device can be used for dismounting the bottom ring-holding eccentric pin based on the bottom ring-holding eccentric pin dismounting device, the top ring-holding eccentric pin dismounting device can be used for dismounting the top ring-holding eccentric pin based on the top ring-holding eccentric pin dismounting device, the ring-holding eccentric pin dismounting device can be mounted on the heavy-duty gas turbine, the ring-holding eccentric pin is dismounted based on the ring-holding eccentric pin dismounting device, then the ring-holding eccentric pin dismounting device is dismounted, and the dismounted ring-holding eccentric pin is saved.
In some embodiments, taking the disassembly process of the top ring-holding eccentric pin as an example, a top ring-holding eccentric pin disassembly device of the top ring-holding eccentric pin is installed first, wherein the top ring-holding eccentric pin disassembly device includes: before the top eccentric pin dismounting device is mounted, the outer flange and the fastening bolt of the top eccentric pin are dismounted, the plugging screw at the top of the eccentric pin is dismounted, the top guide rod passes through the top support plate, the top flat gasket and the top nut, the top guide rod is screwed into the flange threaded hole at the upper half of the top holding ring, the top nut is screwed, the top support plate is clamped, the top screw rod passes through the top support plate and is screwed into the top of the top eccentric pin, the top of the top eccentric pin is tightly locked by the head threads of the top screw rod, wherein the head tightening sleeve is arranged at the screw head joint of the top screw rod, the head locking sleeve is provided with a clamping spring, a clamping bead and a hexagon head for tightly fastening the top eccentric pin, the bearing is sleeved into the top screw rod and is tightly attached to the top support plate, the top nut is sleeved into the top screw rod, the top nut is screwed to enable the top screw rod to rise, the top eccentric pin is driven until the top eccentric pin and the cylinder contact surface is moved out of the cylinder, the top eccentric pin is fixed, the top eccentric pin is completely screwed out of the top threaded hole on the basis of the lifting belt, and the whole top eccentric pin is completely removed from the top holding ring, and the top eccentric pin is completely dismounted, and the top eccentric pin is completely removed.
In some embodiments, taking the disassembly process of the bottom holding ring eccentric pin as an example, before the bottom eccentric pin disassembly and assembly device is installed, the outer flange and the fastening bolt of the bottom holding ring eccentric pin are disassembled, the plugging screw at the top of the bottom holding ring eccentric pin is disassembled, the bottom guide rod passes through the bottom support plate, the bottom gasket, the bottom nut, the bottom cylindrical spring and the outer flange of the bottom holding ring eccentric pin and then is screwed into the threaded hole of the flange at the lower half of the holding ring, the lower bottom nut is screwed down to clamp the bottom support plate, the upper bottom nut is screwed down to ensure that the spring contacts and jacks up the outer flange of the bottom holding ring eccentric pin, and then the rest fastening bolts on the outer flange of the bottom holding ring eccentric pin are disassembled; the bottom screw rod passes through the bottom support plate and is screwed into the top of the bottom holding ring eccentric pin, the top of the bottom holding ring eccentric pin is tightly locked by the head thread of the bottom screw rod, the head locking sleeve is provided with a clamp spring and a clamping bead, the hexagonal head of the bottom holding ring eccentric pin is tightly buckled, the bottom bearing is sleeved into the bottom screw rod and tightly attached to the bottom support plate, the bottom nut is sleeved into the bottom screw rod and is tightly screwed, the bottom screw rod is lowered by continuously screwing the bottom nut, the whole bottom holding ring eccentric pin and the outer flange are driven to descend until the contact surface of the bottom holding ring eccentric pin and the holding ring completely moves out of the cylinder, at this moment, the bottom holding ring eccentric pin is fixed by a lifting belt, the bottom screw rod is completely screwed out of the bottom holding ring eccentric pin threaded hole, the bottom guide rod is removed to remove the whole bottom holding ring eccentric pin dismounting device, and finally the bottom holding ring eccentric pin is lifted out by the lifting belt for storage.
In other embodiments, during assembly of the top and bottom retaining ring eccentric pins, only the top nut and bearing are mounted in the opposite position of the support plate, facilitating the ejection of the eccentric pin into the retaining ring, and other assembly steps are reversed from those during disassembly.
In the foregoing description of embodiments, reference has been made to the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., meaning that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (8)
1. The utility model provides a dismouting device of heavy combustion engine holding ring eccentric pin which characterized in that includes: the bottom holding ring eccentric pin dismounting device and the top holding ring eccentric pin dismounting device; wherein,
The top is held ring eccentric pin dismouting device and is included: the top screw rod, the top bearing, the top support plate, the top guide rod, the top nut and the top flat washer, and the top holding ring eccentric pin dismounting device is used for dismounting the top holding ring eccentric pin of the heavy-duty gas turbine;
The bottom holding ring eccentric pin dismounting device comprises: the bottom screw rod, bottom bearing, bottom extension board, bottom guide bar, bottom nut and bottom plain washer, be provided with cylindrical spring on the bottom guide bar, cylindrical spring is used for preventing bottom holds the ring eccentric pin and drops fast under the effect of gravity the bottom holds ring eccentric pin dismouting device and is used for carrying out dismouting processing to the bottom of heavy-duty gas turbine and holds the ring eccentric pin.
2. The apparatus for assembling and disassembling the ring-holding eccentric pin of the heavy duty gas turbine according to claim 1, wherein the top screw and the bottom screw are provided with screw head threads and screw tail threads for preventing the ring-holding eccentric pin from loosening when the ring-holding eccentric pin is unscrewed from the ring-holding eccentric pin.
3. The dismounting device for the heavy duty gas turbine holding ring eccentric pin of claim 1, wherein a head locking sleeve is arranged at the joint of the screw heads of the top screw and the bottom screw.
4. The dismounting device for the heavy duty gas turbine holding ring eccentric pin according to claim 3, wherein the head locking sleeve is provided with a clamping spring and a clamping bead;
The clamping springs and the clamping beads are arranged on the head locking sleeve of the top screw rod and used for enabling the head of the top screw rod to be tightly buckled with the hexagonal head of the top ring-holding eccentric pin so as to prevent the top ring-holding eccentric pin from falling off;
The clamping springs and the clamping beads are arranged on the head locking sleeve of the bottom screw rod, and are used for enabling the head of the bottom screw rod to be tightly buckled with the hexagonal head of the bottom holding ring eccentric pin, so that the bottom holding ring eccentric pin is prevented from falling off.
5. The apparatus according to claim 1, wherein the top guide rod is screwed into the flange screw hole of the upper half of the top ring-holding eccentric pin through the top support plate, the top washer, and the top nut when the top ring-holding eccentric pin removing process is performed based on the top ring-holding eccentric pin removing apparatus.
6. The apparatus for removing and installing a heavy duty gas turbine retaining ring eccentric pin according to claim 5, wherein said top nut is configured to raise said top screw to drive said top retaining ring eccentric pin.
7. The apparatus according to claim 1, wherein the bottom guide rod is threaded into the flange screw hole of the lower half of the retainer of the bottom retainer eccentric pin through the bottom bracket, the bottom washer, the bottom nut, the cylindrical spring, and the outer flange of the bottom retainer eccentric pin when the bottom retainer eccentric pin is removed based on the bottom retainer eccentric pin removing apparatus.
8. The apparatus for assembling and disassembling a heavy duty gas turbine holding ring eccentric pin according to claim 7, wherein said bottom nut is configured to lower said bottom screw to lower said bottom holding ring eccentric pin and an outer flange of said bottom holding ring eccentric pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410484376.8A CN118218944A (en) | 2024-04-22 | 2024-04-22 | Dismounting device for heavy-duty gas turbine holding ring eccentric pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410484376.8A CN118218944A (en) | 2024-04-22 | 2024-04-22 | Dismounting device for heavy-duty gas turbine holding ring eccentric pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118218944A true CN118218944A (en) | 2024-06-21 |
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ID=91506607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410484376.8A Pending CN118218944A (en) | 2024-04-22 | 2024-04-22 | Dismounting device for heavy-duty gas turbine holding ring eccentric pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118218944A (en) |
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2024
- 2024-04-22 CN CN202410484376.8A patent/CN118218944A/en active Pending
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