CN115213850A - Method for disassembling adjustment pad - Google Patents
Method for disassembling adjustment pad Download PDFInfo
- Publication number
- CN115213850A CN115213850A CN202110407044.6A CN202110407044A CN115213850A CN 115213850 A CN115213850 A CN 115213850A CN 202110407044 A CN202110407044 A CN 202110407044A CN 115213850 A CN115213850 A CN 115213850A
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- CN
- China
- Prior art keywords
- adjusting pad
- turbine
- hole
- pad
- disassembling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a disassembly method of an adjusting pad, which is used for disassembling the adjusting pad from a rabbet of a turbine conical wall and comprises the following steps: removing all connecting pieces at the connecting part of the adjusting pad and the turbine conical wall, and enabling the adjusting pad and the turbine conical wall to rotate relatively, so that a first through hole in the adjusting pad and a corresponding second through hole in the turbine conical wall are offset and staggered; and inserting the decomposing tool from the second through hole to abut against the mounting surface of the adjusting pad facing the second through hole, and applying a force to the decomposing tool in the direction facing the first through hole so that the adjusting pad is decomposed from the rabbet of the turbine cone wall. The method for decomposing the adjusting pad can avoid decomposing the adjusting pad from the rabbet of the turbine conical wall under the condition that the adjusting pad is provided with the threaded hole, avoid the condition that the adjusting pad fails in the operation of an engine due to stress concentration caused by the arrangement of the threaded hole, and further avoid the influence on the safe operation of the engine.
Description
Technical Field
The invention relates to a method for disassembling an adjusting pad.
Background
The adjustment of the axial dimension of a part by using an adjusting pad is a common means for an aircraft engine, and as shown in fig. 1, the axial position of a front sealing ring of a turbine cone wall of a low-pressure turbine is adjusted by using the adjusting pad. In order to ensure the stability of assembly, the adjusting pad is connected with the spigot of the conical wall of the turbine in a small interference manner. After the engine works, the interference degree between the adjusting pad and the turbine cone wall is increased under the influence of centrifugal force and thermal stress, and because the adjusting pad is thin and is positioned at the bottom of the inner spigot of the turbine cone wall, and the inner side of the adjusting pad is a non-open space, the adjusting pad is difficult to apply decomposition force to the adjusting pad, and the decomposition of thin ring structure parts in interference connection is difficult. Generally, the disassembly of the interference parts needs to add a threaded hole on the adjusting pad and realize the disassembly through a jackscrew. However, the provision of a threaded hole in the adjustment pad may introduce stress concentrations that may cause the adjustment pad to fail during engine operation. Therefore, a new method for disassembling the adjustment pad is needed to avoid forming a threaded hole in the adjustment pad.
Disclosure of Invention
The invention aims to solve the technical problem that the adjusting pad is disassembled from the turbine conical wall by arranging the threaded hole on the adjusting pad in the prior art, so that the adjusting pad is easy to lose efficacy in the operation of an engine, and provides a disassembling method of the adjusting pad.
The invention solves the technical problems through the following technical scheme:
the invention provides a disassembly method of a regulating pad, which is used for disassembling the regulating pad from a rabbet of a turbine cone wall, and comprises the following steps:
s1, removing all connecting pieces at the connecting part of an adjusting pad and a turbine conical wall, and enabling the adjusting pad and the turbine conical wall to rotate relatively, so that a first through hole in the adjusting pad and a corresponding second through hole in the turbine conical wall are offset and staggered;
s2, inserting the decomposing tool from the second through hole and abutting against the mounting surface of the adjusting pad facing the second through hole, and applying a force towards the direction of the first through hole to the decomposing tool so that the adjusting pad is decomposed from the notch of the turbine conical wall.
In the scheme, by adopting the decomposition method, the adjusting pad can be prevented from being decomposed from the rabbet of the turbine conical wall under the condition that the adjusting pad is provided with the threaded hole, the condition that the adjusting pad fails in the operation of the engine due to stress concentration caused by the arrangement of the threaded hole is avoided, and further the safe operation of the engine is prevented from being influenced.
Preferably, in step S1, if the adjusting pad and the turbine cone wall cannot rotate relatively, the adjusting pad is cooled.
In this scheme, through cooling off fast the adjustment pad, can be so that the radial dimension of adjustment pad reduces, and then reduce the adjustment pad and with turbine cone wall in the tight degree of being connected of radial direction for the adjustment pad can take place to rotate.
Preferably, the conditioning pad is cooled by spraying dry ice or liquid nitrogen onto the conditioning pad.
In the scheme, the method is convenient to operate, and the turbine conical wall and the adjusting pad cannot be greatly damaged.
Preferably, in step S1, the turbine cone wall is fixed, and the side of the turbine cone wall having the adjustment pad faces upward or toward the operator.
In this scheme, adopt above-mentioned mode, make things convenient for operating personnel to operate.
Preferably, in step S2, the turbine cone wall is fixed, and the side of the turbine cone wall having the adjusting pad faces downward or away from the operator.
In this scheme, adopt above-mentioned mode, make things convenient for operating personnel to operate.
Preferably, the disassembling tool is a shifting fork, the shifting fork is provided with a cylindrical body matched with the second through hole, and the axial length of the cylindrical body is greater than that of the second through hole.
In this scheme, the decomposition instrument adopts the shift fork of above-mentioned structure, conveniently applys the effort through the cylindricality body to the adjustment pad for the adjustment pad takes place to separate with turbine cone wall.
Preferably, the plurality of cylindrical bodies are correspondingly inserted into the plurality of first through holes of the adjusting pad.
In this scheme, the shift fork adopts above-mentioned structure, can be used for the shift fork to rotate the adjustment pad, not only saves the instrument, facilitates the use moreover.
Preferably, in step S1, a circumferential force is applied to the pad by the fork.
The positive progress effects of the invention are as follows: the method for disassembling the adjusting pad can avoid disassembling the adjusting pad from the rabbet of the turbine conical wall under the condition that the adjusting pad is provided with the threaded hole, avoid the condition that the adjusting pad fails in the operation of the engine due to stress concentration caused by the arrangement of the threaded hole, and further avoid influencing the safe operation of the engine.
Drawings
FIG. 1 is a schematic view of the installation of a prior art adjusting shim and a turbine cone wall.
FIG. 2 is a flow chart of a method for disassembling the adjustment pad according to the preferred embodiment of the invention.
FIG. 3 is a schematic view of the use of a fork to apply circumferential force to the adjustment pad in accordance with a preferred embodiment of the present invention.
FIG. 4 is a schematic view of the use of a fork to exert a decomposing force on the adjustment pad according to the preferred embodiment of the present invention.
FIG. 5 is a schematic diagram showing the change in position of the adjusting pad and the hole in the turbine cone wall after applying a circumferential force to the adjusting pad using the fork according to the preferred embodiment of the present invention.
FIG. 6 is a schematic view of a decomposition tool used in the preferred embodiment of the present invention.
Description of reference numerals:
Second via hole 110
Adjusting pad 200
First via 210
Shifting fork 300
Shift fork main body 310
Bolt 500
Detailed Description
The invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, without thereby limiting the scope of the invention to these examples.
Referring to fig. 1, which is a schematic view of the installation of the adjusting pad 200 and the turbine cone wall 100 in the prior art, as shown in the figure, the axial position of the front sealing ring 400 of the turbine cone wall 100 of the low-pressure turbine is adjusted by the adjusting pad 200. In the figure, the adjusting pad 200 is arranged in the seam allowance of the turbine cone wall 100 and is positioned between the front sealing ring 400 and the seam allowance of the turbine cone wall 100, and the adjusting pad 200 and the front sealing ring 400 are fixed on the turbine cone wall 100 through bolts 500.
As shown in fig. 2-5, a method for disassembling the adjustment pad 200 in the present embodiment is used to disassemble the adjustment pad 200 from the rabbet of the turbine cone wall 100. The decomposition method comprises the following steps:
s1, removing all connecting pieces at the connecting part of the adjusting pad 200 and the turbine conical wall 100, and enabling the adjusting pad 200 and the turbine conical wall 100 to rotate relatively, so that a first through hole 210 on the adjusting pad 200 and a corresponding second through hole 110 on the turbine conical wall 100 are deviated and dislocated;
s2, inserting the disassembling tool from the second through hole 110 to abut against the mounting surface of the adjusting pad 200 facing the second through hole 110, and applying a force to the disassembling tool in the direction of the first through hole 210, so that the adjusting pad 200 is disassembled from the rabbet of the turbine conical wall 100.
By adopting the decomposition method to decompose the adjusting pad 200 from the rabbet of the turbine conical wall 100, the adjusting pad 200 can be prevented from being decomposed from the rabbet of the turbine conical wall 100 under the condition that the adjusting pad 200 is provided with the threaded hole, the condition that the adjusting pad 200 fails in the operation of the engine due to stress concentration caused by the arrangement of the threaded hole is avoided, and further the safe operation of the engine is prevented from being influenced.
As shown in fig. 3, in step S1, the turbine cone wall 100 is fixed such that the side of the turbine cone wall 100 having the adjustment pad 200 faces upward. Of course, the side of the turbine cone wall 100 having the adjustment pad 200 may face the operator, so that the operator can operate the turbine cone wall conveniently, and the specific fixing manner may be selected according to the form of the fixing frame.
After the turbine cone wall 100 is fixed, the connecting piece (the bolt 500) at the connecting part of the adjusting pad 200 and the turbine cone wall 100 is completely removed, so that the rotation of the adjusting pad 200 is prevented from being influenced. The relative rotation of the adjustment pad 200 and the turbine cone wall 100 is performed by inserting a rotation tool into the first through hole 210 of the adjustment pad 200 and then applying a circumferential force F1 to the adjustment pad 200. In this step, if the adjustment pad 200 and the turbine cone wall 100 cannot rotate relative to each other, the adjustment pad 200 is cooled. Through cooling the adjusting pad 200 fast, the radial dimension of the adjusting pad 200 can be reduced, and the tightness of the adjusting pad 200 and the turbine cone wall 100 in the radial direction is reduced, so that the adjusting pad 200 can rotate.
The cooling process of the adjustment pad 200 may be performed by spraying dry ice or liquid nitrogen onto the adjustment pad 200. The dry ice or liquid nitrogen spraying is not only convenient to operate, but also does not cause great damage to the turbine cone wall 100 and the adjusting pad 200. The shifting fork 300 can be taken down firstly during cooling, so that the contraction effect of the adjusting pad 200 is prevented from being influenced. And reinserting after cooling is finished.
In other embodiments, the conditioner mat 200 may be cooled in other manners. Of course, if the adjustment pad 200 and the turbine cone wall 100 can rotate relative to each other, no cooling operation is required.
It should be noted that when the rotating tool is inserted into the first through hole 210 of the adjustment pad 200, it does not extend into the second through hole 110 of the turbine cone wall 100, otherwise the relative rotation between the adjustment pad 200 and the turbine cone wall 100 cannot be realized.
As shown in fig. 4 and 5, the adjusting pad 200 and the turbine cone wall 100 rotate relatively, so that the first through hole 210 on the adjusting pad 200 and the corresponding second through hole 110 on the turbine cone wall 100 are offset and dislocated, and then the turbine cone wall 100 is turned over by 180 degrees, so that the adjusting pad 200 is placed downwards to fix the turbine cone wall 100. Of course, the side of the turbine cone wall 100 having the adjustment pad 200 may be disposed away from the operator, and will not be described in detail herein.
And inserting the decomposing tool into the second through hole 110 and resisting the mounting surface of the adjusting pad 200 facing the second through hole 110, and applying a force to the decomposing tool in the direction towards the first through hole 210 so as to decompose the adjusting pad 200 from the rabbet of the turbine conical wall 100. In the present embodiment, since the adjustment pad 200 is located downward, a downward separation force F2 is applied to the separation tool to separate the adjustment pad 200 from the inside of the spigot of the turbine cone wall 100.
In the present embodiment, as shown in fig. 6, the disassembling tool is a fork 300, the fork 300 has a cylinder 320 adapted to the second through hole 110, and an axial length of the cylinder 320 is greater than an axial length of the second through hole 110. The disassembly tool adopts the shifting fork 300 with the structure, so that the acting force can be conveniently applied to the adjusting pad 200 through the cylindrical body 320, and the adjusting pad 200 is separated from the turbine cone wall 100.
The fork 300 further includes a fork body 310, and a cylindrical body 320 is disposed at an end of one end of the fork body 310. The cylindrical body 320 has a cylindrical structure, and an outer diameter is smaller than an inner diameter of the second through hole 110. The cylindrical body 320 may also have other cylindrical structures, which are not described in detail herein.
The shifting fork main body 310 is provided with a handheld section, so that handheld operation is facilitated, the handheld section can be hammered to generate large circumferential force F1, the adjusting pad 200 is driven to rotate slightly, the first through hole 210 of the adjusting pad 200 and the second through hole 110 of the turbine conical wall 100 are staggered, the bearing surface of the adjusting pad 200 is exposed and used for being abutted to the cylindrical body 320 of the shifting fork 300, and decomposition force required for decomposition is applied to the adjusting pad 200 conveniently.
In the present embodiment, there are two cylinders 320, and the two cylinders 320 can be inserted into the two first through holes 210 of the adjustment pad 200 simultaneously and correspondingly. Of course, the number of the cylindrical bodies 320 may be one or more than two.
In this embodiment, the shift fork 300 may be used to rotate the adjustment pad 200, and the shift fork 300 may be used to apply a circumferential force F1 to the adjustment pad 200.
The shifting fork 300 is used as a rotating tool and a disassembling tool simultaneously, so that the tool is saved, and the use is convenient.
Of course, in other embodiments, the rotating tool and the disassembling tool may also be of other types of construction and will not be described in detail here.
The method for disassembling the adjusting pad in the embodiment is not only suitable for disassembling the adjusting pad on the turbine cone wall, but also suitable for disassembling other annular components connected in an interference manner.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (8)
1. A method of disassembly of a conditioner disk for disassembling the conditioner disk from within a spigot of a turbine cone wall, the method comprising the steps of:
s1, removing all connecting pieces at the connecting part of an adjusting pad and a turbine conical wall, and enabling the adjusting pad and the turbine conical wall to rotate relatively, so that a first through hole in the adjusting pad and a corresponding second through hole in the turbine conical wall are offset and staggered;
s2, inserting the decomposing tool from the second through hole and abutting against the mounting surface of the adjusting pad facing the second through hole, and applying a force towards the direction of the first through hole to the decomposing tool so that the adjusting pad is decomposed from the notch of the turbine conical wall.
2. The method for disassembling the conditioner disk according to claim 1, wherein in step S1, if the conditioner disk and the turbine cone wall cannot rotate relative to each other, the conditioner disk is cooled.
3. The decomposition method of a conditioner mat according to claim 2, wherein the conditioner mat is cooled by spraying dry ice or liquid nitrogen onto the conditioner mat.
4. The method for disassembling an adjustment pad according to claim 1, wherein in step S1, the turbine cone wall is fixed such that a side of the turbine cone wall having the adjustment pad faces upward or an operator.
5. The method of disassembling an adjustment pad of claim 1, wherein in step S2, the turbine cone wall is fixed with a side of the turbine cone wall having the adjustment pad facing downward or away from an operator.
6. The disassembly method of an adjustment pad of claim 1, wherein the disassembly tool is a fork having a cylindrical body fitted with the second through hole, and an axial length of the cylindrical body is greater than an axial length of the second through hole.
7. The method of disassembling a conditioner mat of claim 6, wherein said plurality of cylindrical bodies are inserted into said plurality of first through holes of said conditioner mat.
8. The method for disassembling the adjustment pad of claim 7, wherein in step S1, the adjustment pad is applied with a circumferential force by the fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110407044.6A CN115213850B (en) | 2021-04-15 | 2021-04-15 | Decomposing method for adjusting pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110407044.6A CN115213850B (en) | 2021-04-15 | 2021-04-15 | Decomposing method for adjusting pad |
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| Publication Number | Publication Date |
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| CN115213850A true CN115213850A (en) | 2022-10-21 |
| CN115213850B CN115213850B (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110407044.6A Active CN115213850B (en) | 2021-04-15 | 2021-04-15 | Decomposing method for adjusting pad |
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| US20120151735A1 (en) * | 2010-12-20 | 2012-06-21 | Thomas Erik C | Method and Tooling for Partial Disassembly of a Bypass Turbofan Engine |
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| CN111451975A (en) * | 2019-01-18 | 2020-07-28 | 万华禾香板业有限责任公司 | Dismounting device of atomizing disk for gluing |
| CN212389637U (en) * | 2020-06-16 | 2021-01-22 | 中国航发商用航空发动机有限责任公司 | Art compression nut and its assembling and separating tool |
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2021
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Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120151735A1 (en) * | 2010-12-20 | 2012-06-21 | Thomas Erik C | Method and Tooling for Partial Disassembly of a Bypass Turbofan Engine |
| CN104339317A (en) * | 2013-07-30 | 2015-02-11 | 通用汽车环球科技运作有限责任公司 | Propshaft holding tool |
| US20160131194A1 (en) * | 2014-11-07 | 2016-05-12 | Forum Us, Inc. | Swivel joint disassembly tool and method for same |
| CN204800548U (en) * | 2015-06-30 | 2015-11-25 | 天津市尚拓环保科技有限公司 | Extracting tool of reverse osmosis membrane pressure vessel end plate |
| KR20200004959A (en) * | 2018-07-05 | 2020-01-15 | 두산중공업 주식회사 | Tilting pad journal bearing having dynamic characteristics adjustment function |
| US20200030924A1 (en) * | 2018-07-25 | 2020-01-30 | United Technologies Corporation | Method of removing bearing compartment |
| CN111451975A (en) * | 2019-01-18 | 2020-07-28 | 万华禾香板业有限责任公司 | Dismounting device of atomizing disk for gluing |
| CN109719677A (en) * | 2019-02-13 | 2019-05-07 | 中国海洋石油集团有限公司 | A kind of skeleton dismantling device with brill instrument |
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| Publication number | Publication date |
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| CN115213850B (en) | 2023-08-11 |
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