CN103758579B - The assembly method of marine turbing blade with tips outsourcing lacing wire vibration damping structure - Google Patents
The assembly method of marine turbing blade with tips outsourcing lacing wire vibration damping structure Download PDFInfo
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- CN103758579B CN103758579B CN201410037040.3A CN201410037040A CN103758579B CN 103758579 B CN103758579 B CN 103758579B CN 201410037040 A CN201410037040 A CN 201410037040A CN 103758579 B CN103758579 B CN 103758579B
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Abstract
Marine turbing blade with tips outsourcing lacing wire vibration damping structure and assembly method thereof, relate to a kind of blade lacing vibration damping structure and assembly method thereof.In order to solve existing blade lacing vibration damping structure, to there is between each group of shroud gap large in the present invention, and Steam loss is many, and middle lacing wire reduces the problem of current flow efficiency.Blade structure of the present invention is that blade blade top carries crown structure, and integral shroud has damp-ing wire mounting groove, damp-ing wire is arranged in mounting groove, rolls mounting groove both sides, and straight-arm structure is by damp-ing wire peening and be wrapped in damp-ing wire mounting groove.After the whole circle assembling of blade structure that blade blade top carries integral shroud completes, integral shroud is processed the mounting groove mated with damp-ing wire, and at the both sides processing technology groove of mounting groove; In mounting groove, load damp-ing wire, roll integral shroud with rolling tool, damp-ing wire peening is wrapped in mounting groove, finally integral shroud is put in place according to size requirement processing.The present invention is used for marine turbing blade vibration damping.
Description
Technical field
The present invention relates to a kind of steam turbine blade tendon vibration damping structure and assembly method thereof, be specifically related to a kind of marine turbing blade with tips outsourcing lacing wire vibration damping structure and assembly method thereof, belong to ship power steam turbine technology field.
Background technique
Conventional marine turbing moving vane generally adopts riveted type shroud structure, and in order to blade frequency modulation, is installed with one lacing wire with it in blade and blade.This kind of structure is higher to assembly crewman's skill set requirements.In addition, because the gap between each group of shroud is comparatively large, Steam loss is more, and the lacing wire of centre also reduces current flow efficiency.
Summary of the invention
In order to solve existing blade lacing vibration damping structure, to there is gap between each group of shroud large in the present invention, Steam loss is many, middle lacing wire reduces current flow efficiency, and then a kind of frequency modulation requirement that can meet blade is provided, there is again marine turbing blade with tips outsourcing lacing wire vibration damping structure and the assembly method thereof of good current flow efficiency.
The present invention in order to solve the problems of the technologies described above taked technological scheme is:
Marine turbing blade with tips outsourcing lacing wire vibration damping structure of the present invention comprises blade and damp-ing wire, described blade structure is that blade blade top carries crown structure, integral shroud has damp-ing wire mounting groove, the bottom land of damp-ing wire mounting groove is semicircular structure, cell wall is straight-arm structure, the axial direction of semicircular structure and the normal direction of vane foil cross section perpendicular, damp-ing wire is arranged in damp-ing wire mounting groove, roll damp-ing wire mounting groove both sides, straight-arm structure is by damp-ing wire peening and be wrapped in damp-ing wire mounting groove.
Preferred: the diameter of described damp-ing wire is consistent with the diameter of the semicircular structure of damp-ing wire mounting groove.Setting like this, damp-ing wire coordinates closely with mounting groove.
Preferred: the diameter of described damp-ing wire is 3mm.Setting like this, meets requirement of strength.
Preferred: described in roll damp-ing wire mounting groove two rear flank, leave gap between two straight-arm structures.Ensure that blade frequencies avoids rate, improves effectiveness in vibration suppression better.
Preferred: the gap between described two straight-arm structures is 1mm.
Preferred: described damp-ing wire mounting groove both sides have technology groove.Setting like this, is convenient to roller-compaction.
Preferred: described technology groove is semi-circular groove, diameter is 3mm.
The assembly method of marine turbing blade with tips outsourcing lacing wire vibration damping structure of the present invention, concrete steps are: after the whole circle assembling of blade structure that blade blade top carries integral shroud completes, according to the diameter of damp-ing wire, integral shroud is processed the damp-ing wire mounting groove mated with damp-ing wire, and respectively processes a technology groove in the both sides of damp-ing wire mounting groove; Through loading damp-ing wire after the assay was approved in damp-ing wire mounting groove, roll integral shroud with rolling tool, damp-ing wire peening is wrapped in damp-ing wire mounting groove, finally integral shroud is put in place according to size requirement processing.
Preferred: the joint of described damp-ing wire is positioned in the middle of single integral shroud.Ensure that blade frequencies avoids rate, improves effectiveness in vibration suppression better.
The present invention compared with prior art has following effect:
The present invention is blade with tips outsourcing lacing wire structure.Blade with tips hat is very little with hat gap, decreases leakage losses; In addition, the lacing wire be installed with by blade, is adjusted to integral shroud top, while ensureing that blade frequencies avoids rate and effectiveness in vibration suppression, reduces ventilation losses.By the optimization of two aspects, greatly flow efficiency will be improved.Blade with tips outsourcing lacing wire structure processing technology of the present invention is simple in addition.
Accompanying drawing explanation
Fig. 1 is marine turbing blade with tips outsourcing lacing wire vibration damping structure schematic diagram;
Fig. 2 is the blade with tips structural drawing not installing lacing wire.
In figure: 1-blade blade, 2-carries integral shroud, 3-damp-ing wire, and 2-1 is damp-ing wire mounting groove, and 2-2 is technology groove.
Embodiment
Elaborate the preferred embodiment of the present invention with reference to the accompanying drawings below.
Embodiment: the marine turbing blade with tips outsourcing lacing wire vibration damping structure of present embodiment comprises blade and damp-ing wire 3, described blade structure is that blade blade 1 top carries integral shroud 2 structure, integral shroud 2 has damp-ing wire mounting groove 2-1, the bottom land of damp-ing wire mounting groove 2-1 is semicircular structure, the axial direction of semicircular structure and the normal direction of vane foil cross section perpendicular, damp-ing wire 3 is arranged in damp-ing wire mounting groove 2-1, and damp-ing wire 3 peening is also wrapped in damp-ing wire mounting groove 2-1.
Further: the bottom land of damp-ing wire mounting groove 2-1 is semicircular structure, cell wall is straight-arm structure, the axial direction of semicircular structure and the normal direction of vane foil cross section perpendicular, damp-ing wire 3 is arranged in damp-ing wire mounting groove 2-1, roll damp-ing wire mounting groove 2-1 both sides, straight-arm structure is by damp-ing wire 3 peening and be wrapped in damp-ing wire mounting groove 2-1.
Further: the diameter of described damp-ing wire 3 is consistent with the diameter of the semicircular structure of damp-ing wire mounting groove 2-1.Setting like this, damp-ing wire coordinates closely with mounting groove.
Further: the diameter of described damp-ing wire 3 is 3mm.Setting like this, meets requirement of strength.
Further: described in roll damp-ing wire mounting groove 2-1 two rear flank, leave gap between two straight-arm structures.Ensure that blade frequencies avoids rate, improves effectiveness in vibration suppression better.
Further: the gap between described two straight-arm structures is 1mm.
Further: described damp-ing wire mounting groove 2-1 both sides have technology groove 2-2.Setting like this, is convenient to roller-compaction.
Further: described technology groove 2-2 is semi-circular groove, diameter is 3mm.
The assembly method of marine turbing blade with tips outsourcing lacing wire vibration damping structure of the present invention, concrete steps are: after the whole circle assembling of blade structure that blade blade 1 top carries integral shroud 2 completes, according to the diameter of damp-ing wire 3, integral shroud 2 is processed the damp-ing wire mounting groove 2-1 mated with damp-ing wire 3, and respectively processes a technology groove 2-2 in the both sides of damp-ing wire mounting groove 2-1; Through loading damp-ing wire 3 after the assay was approved in damp-ing wire mounting groove 2-1, roll integral shroud 2 with rolling tool, damp-ing wire 3 peening is wrapped in damp-ing wire mounting groove 2-1, finally integral shroud 2 is put in place according to size requirement processing.
Further: the joint of described damp-ing wire 3 is positioned in the middle of single integral shroud 2.Ensure that blade frequencies avoids rate, improves effectiveness in vibration suppression better.
The exemplary illustration of present embodiment just to this patent, does not limit its protection domain, and those skilled in the art can also change, as long as no the Spirit Essence exceeding this patent, in the protection domain of this patent its local.
Claims (2)
1. the assembly method of marine turbing blade with tips outsourcing lacing wire vibration damping structure, wherein, marine turbing blade with tips outsourcing lacing wire vibration damping structure, comprise blade and damp-ing wire (3), blade structure is that blade blade (1) top carries integral shroud (2) structure, integral shroud (2) has damp-ing wire mounting groove (2-1), the bottom land of damp-ing wire mounting groove (2-1) is semicircular structure, cell wall is straight-arm structure, the axial direction of semicircular structure and the normal direction of vane foil cross section perpendicular, damp-ing wire (3) is arranged in damp-ing wire mounting groove (2-1), roll damp-ing wire mounting groove (2-1) both sides, straight-arm structure is by damp-ing wire (3) peening and be wrapped in damp-ing wire mounting groove (2-1), described damp-ing wire mounting groove (2-1) both sides have technology groove (2-2), it is characterized in that: the assembly method concrete steps of marine turbing blade with tips outsourcing lacing wire vibration damping structure are: after the whole circle assembling of blade structure that blade blade (1) top carries integral shroud (2) completes, according to the diameter of damp-ing wire (3), above process a damp-ing wire mounting groove (2-1) of mating with damp-ing wire (3) at integral shroud (2), and respectively process a technology groove (2-2) in the both sides of damp-ing wire mounting groove (2-1), through loading damp-ing wire (3) after the assay was approved in damp-ing wire mounting groove (2-1), integral shroud (2) is rolled with rolling tool, damp-ing wire (3) peening is wrapped in damp-ing wire mounting groove (2-1), finally integral shroud (2) is put in place according to size requirement processing.
2. the assembly method of marine turbing blade with tips outsourcing lacing wire vibration damping structure according to claim 1, is characterized in that: the joint of described damp-ing wire (3) is positioned in the middle of single integral shroud (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410037040.3A CN103758579B (en) | 2014-01-26 | 2014-01-26 | The assembly method of marine turbing blade with tips outsourcing lacing wire vibration damping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410037040.3A CN103758579B (en) | 2014-01-26 | 2014-01-26 | The assembly method of marine turbing blade with tips outsourcing lacing wire vibration damping structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103758579A CN103758579A (en) | 2014-04-30 |
| CN103758579B true CN103758579B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410037040.3A Expired - Fee Related CN103758579B (en) | 2014-01-26 | 2014-01-26 | The assembly method of marine turbing blade with tips outsourcing lacing wire vibration damping structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026172B (en) * | 2018-09-25 | 2024-02-02 | 中国船舶重工集团公司第七0三研究所 | From banded damping lacing wire strip vibration attenuation structure of taking guan leaf |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1165005A (en) * | 1914-05-14 | 1915-12-21 | Westinghouse Machine Co | Blade construction for elastic-fluid turbines. |
| DE2606891A1 (en) * | 1975-03-12 | 1976-09-23 | Stal Laval Turbin Ab | Method of fixing blades to axial-flow turbine rotors - peripheral lacing wire secures interlocking blades positively, root shoulder is peened over |
| US4699569A (en) * | 1985-07-05 | 1987-10-13 | Bbc Brown, Boveri & Company, Limited | Rotor blade ring of an axial flow turbomachine |
| EP2019188A1 (en) * | 2007-07-25 | 2009-01-28 | Siemens Aktiengesellschaft | Rotor stage with damping element |
| EP2573327A1 (en) * | 2011-09-20 | 2013-03-27 | Siemens Aktiengesellschaft | Damping wire, corresponding rotor blade stage, steam turbine and producing method |
| CN203655359U (en) * | 2014-01-26 | 2014-06-18 | 中国船舶重工集团公司第七�三研究所 | Marine turbine self crown blade externally-wrapped pull bar vibration reduction structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09324603A (en) * | 1996-06-10 | 1997-12-16 | Mitsubishi Heavy Ind Ltd | Turbine rotor blade of high speed rotary machine |
| US6482533B2 (en) * | 2001-03-05 | 2002-11-19 | The Boeing Company | Article having imbedded cavity |
-
2014
- 2014-01-26 CN CN201410037040.3A patent/CN103758579B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1165005A (en) * | 1914-05-14 | 1915-12-21 | Westinghouse Machine Co | Blade construction for elastic-fluid turbines. |
| DE2606891A1 (en) * | 1975-03-12 | 1976-09-23 | Stal Laval Turbin Ab | Method of fixing blades to axial-flow turbine rotors - peripheral lacing wire secures interlocking blades positively, root shoulder is peened over |
| US4699569A (en) * | 1985-07-05 | 1987-10-13 | Bbc Brown, Boveri & Company, Limited | Rotor blade ring of an axial flow turbomachine |
| EP2019188A1 (en) * | 2007-07-25 | 2009-01-28 | Siemens Aktiengesellschaft | Rotor stage with damping element |
| EP2573327A1 (en) * | 2011-09-20 | 2013-03-27 | Siemens Aktiengesellschaft | Damping wire, corresponding rotor blade stage, steam turbine and producing method |
| CN203655359U (en) * | 2014-01-26 | 2014-06-18 | 中国船舶重工集团公司第七�三研究所 | Marine turbine self crown blade externally-wrapped pull bar vibration reduction structure |
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| CN103758579A (en) | 2014-04-30 |
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Granted publication date: 20151202 Termination date: 20190126 |