CN115178962A - Device for repairing damage of fir tree blade root wheel disc and assembly method - Google Patents
Device for repairing damage of fir tree blade root wheel disc and assembly method Download PDFInfo
- Publication number
- CN115178962A CN115178962A CN202210862038.4A CN202210862038A CN115178962A CN 115178962 A CN115178962 A CN 115178962A CN 202210862038 A CN202210862038 A CN 202210862038A CN 115178962 A CN115178962 A CN 115178962A
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- CN
- China
- Prior art keywords
- wheel disc
- groove
- blade
- mounting block
- mounting
- Prior art date
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 21
- 241000218642 Abies Species 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- B23P6/00—Restoring or reconditioning objects
- B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
-
- 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
Abstract
The invention discloses a device and an assembly method for repairing damage of a fir-tree blade root wheel disc, which comprises an installation block; the upper half part of the mounting block is provided with a blade mounting groove, the bottom of the mounting block is provided with a wheel disc mounting seat, and the thickness of the mounting block is the same as that of the wheel disc; be provided with logical groove on the rim plate global, lead to the groove axial and run through the rim plate, lead to the groove top and be provided with the opening, lead to the overall dimension of groove and be the same with installation piece and rim plate mount pad. The assembly of the repaired wheel disc and the repaired blade can be realized, and the service life of the wheel disc part is prolonged.
Description
Technical Field
The invention belongs to the field of mechanical wheel discs, and relates to a device for repairing damage of a fir-tree type blade root wheel disc and an assembly method.
Background
The wheel disc is a core part of a rotary machine, and is required to bear extremely high centrifugal load, vibration load and thermal load as well as corrosion and oxidation of an environmental medium, so that the wheel disc is easy to damage after a period of work. If the wheel disc part is directly replaced by a new wheel disc after being damaged, higher cost is needed, so that a better method is explored for repairing the damaged wheel disc, the service life of the wheel disc part is prolonged, and the method has important practical significance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device and an assembly method for repairing damage of a fir-tree blade root wheel disc, which can realize the assembly of the repaired wheel disc and blades and are beneficial to prolonging the service life of a wheel disc part.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a device for repairing damage to a firtree root disk includes a mounting block;
the upper half part of the mounting block is provided with a blade mounting groove, the bottom of the mounting block is provided with a wheel disc mounting seat, and the thickness of the mounting block is the same as that of the wheel disc;
be provided with logical groove on the rim plate global, lead to the groove axial and run through the rim plate, lead to the groove top and be provided with the opening, lead to the overall dimension of groove and be the same with installation piece and rim plate mount pad.
Preferably, the upper half part of the mounting block is provided with a through hole, two ends of the through hole penetrate through the upper half part of the mounting block and the joint part of the through groove of the wheel disc, a connecting pin is arranged in the through hole, the length of the connecting pin is the same as that of the upper half part of the mounting block, and the connecting pin penetrates through the blade mounting groove.
Preferably, the length direction of the blade mounting groove is parallel to the axial direction of the wheel disc.
Preferably, both ends of the blade mounting groove penetrate through the mounting block.
Preferably, the wheel disc mounting seat extends towards the bottom of the mounting block and two sides of the part, attached to the through groove of the wheel disc, of the mounting block.
Preferably, the mounting block is made of titanium alloy.
According to the assembling method of the device for repairing the damage of the fir-tree-shaped blade root wheel disc, the blade is installed in the blade installation groove of the installation block along the axial direction of the wheel disc, and then the installation block is inserted into the through groove of the wheel disc along the axial direction of the wheel disc, so that the assembling is completed.
Preferably, after the blade is inserted into the blade mounting groove, the connecting pin penetrates through the blade and the through hole, and then the mounting block is axially inserted into the through groove of the wheel disc.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, after the processing size of the blade root wheel disc groove on the wheel disc is wrong, the part with the wrong processing of the blade root wheel disc groove can be cut off, the through groove is processed, the mounting block can be mounted in the through groove, is connected with the wheel disc through the wheel disc mounting seat and is connected with the blade through the blade mounting groove, the assembly of the repaired wheel disc and the repaired blade is realized, the service life of a wheel disc part is favorably prolonged, the rejection of the whole rotor caused by the wrong processing size of the blade root wheel disc groove is avoided, and the production cost of a manufacturing enterprise is favorably reduced.
Further, the mounting block and the blade can be fixed by using the connecting pin.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic illustration of the wheel disc after repair in accordance with the present invention;
FIG. 3 is a schematic view of the assembly of the apparatus of the present invention with a blade and disk;
FIG. 4 is a schematic view of the overall assembly of the blade and disk of the present invention.
Wherein: 1-a blade mounting groove; 2-wheel disc mounting seats; 3-a device body; 4-a blade; 5-a wheel disc; 6-through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper" and "lower" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the apparatus for repairing damage to a firtree root disk according to the present invention comprises a mounting block 3.
As shown in fig. 2, be provided with logical groove on rim plate 5 global, lead to the groove axial and run through rim plate 5, lead to the groove top and be provided with the opening, the overall dimension who leads to the groove is the same with installation piece 3 and rim plate mount pad 2, and during the assembly, installation piece 3 inserts the logical inslot of rim plate 5.
The length direction of the blade mounting groove 1 is parallel to the axial direction of the wheel disc 5, the mounting blocks 3 are penetrated through the two ends of the blade mounting groove 1, the top of the blade mounting groove 1 is opened, the size of the blade mounting groove 1 is consistent with the fir-shaped blade root groove of the original wheel disc, and therefore the blades 4 can be well mounted in the mounting blocks 3.
Rim plate mount pad 2 leads to groove laminating position both sides to installation piece 3 bottom and rim plate 5 and extends, and the bottom surface is located the cambered surface, and rim plate mount pad 2 processes according to the size after 5 restoreings of actual rim plate, requires can well cooperate with 5 rim plates after the restoration.
The upper half of the mounting block 3 is provided with a through hole 6, the two ends of the through hole 6 penetrate through the upper half of the mounting block 3 and the through groove fitting part of the wheel disc 5, a connecting pin is arranged in the through hole 6, the length of the connecting pin is the same as that of the upper half of the mounting block 3, the connecting pin penetrates through the blade mounting groove 1, and the connecting pin penetrates through the blade 4 and the through hole 6, so that the blade is fixed on the mounting block 3.
During the assembly, install blade 4 in installation piece 3's blade mounting groove 1 along 5 axial directions on the rim plate, run through blade 4 and through-hole 6 with the connecting pin, insert the logical inslot of rim plate 5 with installation piece 3 along 5 axial directions on the rim plate again, accomplish the assembly.
As shown in fig. 3 and 4, after the assembly is completed, the blade 4 is installed in the blade installation groove 1, the disk mount 2 and the mounting block 3 are installed in the disk 5, and the device body 3 is installed in the disk 5 in the axial direction of the disk 5.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not a disclaimer of such subject matter, nor is it to be construed that applicant does not consider such subject matter to be part of the disclosed inventive subject matter.
Claims (8)
1. A device for repairing damage to a firtree root disk, comprising a mounting block (3);
the upper half part of the mounting block (3) is provided with a blade mounting groove (1), the bottom of the mounting block (3) is provided with a wheel disc mounting seat (2), and the thickness of the mounting block (3) is the same as that of the wheel disc (5);
be provided with logical groove on rim plate (5) global, lead to the groove axial and run through rim plate (5), lead to the groove top and be provided with the opening, the overall dimension who leads to the groove is the same with installation piece (3) and rim plate mount pad (2).
2. The device for repairing damage to the wheel disc with the fir-tree type blade root according to claim 1, wherein the upper half part of the mounting block (3) is provided with a through hole (6), two ends of the through hole (6) penetrate through the joint part of the upper half part of the mounting block (3) and the through groove of the wheel disc (5), a connecting pin is arranged in the through hole (6), the length of the connecting pin is the same as that of the upper half part of the mounting block (3), and the connecting pin penetrates through the blade mounting groove (1).
3. The device for repairing damage to a firtree-root disk according to claim 1, wherein the length direction of the blade mounting groove (1) is parallel to the axial direction of the disk (5).
4. Device for repairing fir tree root disc damage according to claim 1, characterized in that the blade mounting groove (1) is penetrated at both ends by a mounting block (3).
5. The device for repairing damage to a firtree root disk according to claim 1, wherein the disk mount (2) extends towards both sides of the attachment portion of the bottom of the mounting block (3) and the through slot of the disk (5).
6. Device for repairing fir tree root disc damage according to claim 1, characterized in that the mounting block (3) is made of titanium alloy.
7. An assembling method of the device for repairing damage of the fir tree type blade root wheel disc based on any one of the claims 1 to 6 is characterized in that the blades (4) are installed into the blade installation grooves (1) of the installation blocks (3) along the axial direction of the wheel disc (5), and then the installation blocks (3) are inserted into the through grooves of the wheel disc (5) along the axial direction of the wheel disc (5) to complete the assembling.
8. The assembly method of a device for repairing fir tree blade root disk damage according to claim 7, characterized in that after the blade (4) is inserted into the blade mounting slot (1), the connecting pin is inserted through the blade (4) and the through hole (6), and then the mounting block (3) is axially inserted into the through groove of the disk (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210862038.4A CN115178962A (en) | 2022-07-20 | 2022-07-20 | Device for repairing damage of fir tree blade root wheel disc and assembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210862038.4A CN115178962A (en) | 2022-07-20 | 2022-07-20 | Device for repairing damage of fir tree blade root wheel disc and assembly method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115178962A true CN115178962A (en) | 2022-10-14 |
Family
ID=83519441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210862038.4A Pending CN115178962A (en) | 2022-07-20 | 2022-07-20 | Device for repairing damage of fir tree blade root wheel disc and assembly method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115178962A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH473977A (en) * | 1967-03-20 | 1969-06-15 | Licentia Gmbh | Device for fastening rotor blades |
| US5263823A (en) * | 1991-07-24 | 1993-11-23 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation (S.N.E.C.M.A.) | Gas turbine engine impeller having an annular collar platform |
| US20040172827A1 (en) * | 2003-03-03 | 2004-09-09 | Kinstler Monika D. | Fan and compressor blade dovetail restoration process |
| US20110255980A1 (en) * | 2010-04-19 | 2011-10-20 | Mtu Aero Engines Gmbh | Method for repairing a rotor system of a turbomachine, annular element for a rotor system of a turbomachine, and rotor system for a turbomachine |
| CN102773655A (en) * | 2012-07-20 | 2012-11-14 | 哈尔滨汽轮机厂有限责任公司 | Repairing method of steam turbine rotor fir type wheel groove |
| US20120317808A1 (en) * | 2011-06-17 | 2012-12-20 | General Electric Company | Method and apparatus to repair a turbomachine rotor wheel |
| US20130156587A1 (en) * | 2011-09-30 | 2013-06-20 | Alstom Technology Ltd | Retrofitting methods and devices for large steam turbines |
| JP2015140716A (en) * | 2014-01-28 | 2015-08-03 | 三菱日立パワーシステムズ株式会社 | Turbine rotor disc repair method and turbine rotor |
| CN106368981A (en) * | 2015-07-21 | 2017-02-01 | 通用电气公司 | Patch ring for a compressor and method for installing same |
| CN107109944A (en) * | 2014-10-13 | 2017-08-29 | 赛峰航空器发动机 | Implement the method and its associated patch of operation on rotor |
| US20180304419A1 (en) * | 2015-12-25 | 2018-10-25 | Mitsubishi Heavy Industries Compressor Corporation | Turbine rotor disc repairing method and welding method |
| CN110234837A (en) * | 2017-01-31 | 2019-09-13 | 通用电气公司 | The method for repairing integral blade disk |
-
2022
- 2022-07-20 CN CN202210862038.4A patent/CN115178962A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH473977A (en) * | 1967-03-20 | 1969-06-15 | Licentia Gmbh | Device for fastening rotor blades |
| US5263823A (en) * | 1991-07-24 | 1993-11-23 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation (S.N.E.C.M.A.) | Gas turbine engine impeller having an annular collar platform |
| US20040172827A1 (en) * | 2003-03-03 | 2004-09-09 | Kinstler Monika D. | Fan and compressor blade dovetail restoration process |
| US20110255980A1 (en) * | 2010-04-19 | 2011-10-20 | Mtu Aero Engines Gmbh | Method for repairing a rotor system of a turbomachine, annular element for a rotor system of a turbomachine, and rotor system for a turbomachine |
| US20120317808A1 (en) * | 2011-06-17 | 2012-12-20 | General Electric Company | Method and apparatus to repair a turbomachine rotor wheel |
| US20130156587A1 (en) * | 2011-09-30 | 2013-06-20 | Alstom Technology Ltd | Retrofitting methods and devices for large steam turbines |
| CN102773655A (en) * | 2012-07-20 | 2012-11-14 | 哈尔滨汽轮机厂有限责任公司 | Repairing method of steam turbine rotor fir type wheel groove |
| JP2015140716A (en) * | 2014-01-28 | 2015-08-03 | 三菱日立パワーシステムズ株式会社 | Turbine rotor disc repair method and turbine rotor |
| CN107109944A (en) * | 2014-10-13 | 2017-08-29 | 赛峰航空器发动机 | Implement the method and its associated patch of operation on rotor |
| CN106368981A (en) * | 2015-07-21 | 2017-02-01 | 通用电气公司 | Patch ring for a compressor and method for installing same |
| US20180304419A1 (en) * | 2015-12-25 | 2018-10-25 | Mitsubishi Heavy Industries Compressor Corporation | Turbine rotor disc repairing method and welding method |
| CN110234837A (en) * | 2017-01-31 | 2019-09-13 | 通用电气公司 | The method for repairing integral blade disk |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221014 |