CN102091956B - Rotary milling support frame for blades of steam turbine - Google Patents
Rotary milling support frame for blades of steam turbine Download PDFInfo
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- CN102091956B CN102091956B CN2011100043499A CN201110004349A CN102091956B CN 102091956 B CN102091956 B CN 102091956B CN 2011100043499 A CN2011100043499 A CN 2011100043499A CN 201110004349 A CN201110004349 A CN 201110004349A CN 102091956 B CN102091956 B CN 102091956B
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Abstract
The invention provides a rotary milling support frame for blades of a steam turbine, which can ensure the rigidity of the long blades of the steam turbine during machining process, enable the vibration of the blades to be small and ensure the machining of the blades. The rotary milling support frame comprises a base and an upper cover, wherein the upper cover is fastened and connected on the base, and the rotary milling support frame is characterized in that the upper cover is covered on the base, then a circular through hole is formed in the middle position, round rollers are uniformly distributed on the hole edge of the circular through hole, a circular revolution block is matched and arranged in the circular through hole, the outer edge of the circular revolution block is in contact with the round rollers, a blade supporting cavity is formed in the circular revolution block, an inner arc-shaped pressure block is mounted on one side of the blade supporting cavity, a back arc-shaped pressure block is mounted on the side which is opposite to the side of the blade supporting cavity, the inner arc-shaped pressure block is press-mounted on the inner arc surface of the blade to be machined, and the back arc-shaped pressure block is press-mounted on the back arc surface of the blade to be machined.
Description
Technical field
The present invention relates to the processing technique field of turbine blade, be specially the turbine blade revolution and mill bracing frame.
Background technology
The turbine blade profile is a distortion profile; Blade profile processing utilizes three centre bores location usually; On Digit Control Machine Tool, carry out four revolution digital control processings, along with the development of technology, supercritical unit, nuclear power generating sets moving vane length are more and more longer; The long more rigidity of blade is poor more, and this brings certain difficulty for the processing of blade profile numerical control rotary.In the blade actual production process, because blade is longer, rigidity is relatively poor, is adding man-hour, and the blade vibration especially severe causes blade to process.
Summary of the invention
To the problems referred to above, the invention provides the turbine blade revolution and mill bracing frame, the rigidity of linear leaf in process that it guarantees steam turbine makes blade vibration little, guaranteed processing of leaves.
Bracing frame is milled in the turbine blade revolution; Its technical scheme is such: it comprises base, loam cake, and said loam cake is fastenedly connected said base, it is characterized in that: the centre position formed manhole after said loam cake lid was loaded on said base; The hole of said manhole is along being evenly equipped with round roller; The cooperation of circular turned piece is loaded in the said manhole, and the outer of said circular turned piece contacts said round roller, and the inside of said circular turned piece has the supporting blades cavity; One side of said supporting blades cavity is equipped with the inner arc briquetting; The offside of one side of said supporting blades cavity is equipped with back of the body arc voltage piece, and said inner arc briquetting press-fits the intrados in blade to be processed, and said back of the body arc voltage piece press-fits the convex surface in said blade to be processed.
It is further characterized in that: said loam cake, base are through V-type groove, the tongue location that cooperatively interacts, and screw is fastenedly connected said loam cake, base;
Said back of the body arc voltage piece has two, and said back of the body arc voltage piece is positioned at the both sides of the center extended line of said inner arc briquetting;
Said circular turned packaged in said manhole after, annular cover plate is anchored on the outer face, both sides of said base, the formed manhole of loam cake respectively, said annular cover plate blocks the outward flange of said circular turned piece;
Said inner arc briquetting is anchored on inner arc pressure head inner end, and the inner arc rotating shaft connects said inner arc pressure head outer end, inner arc hydraulic stem end, and the said inner arc hydraulic stem other end is fastenedly connected said circular turned piece; Said back of the body arc voltage piece is anchored on back of the body arc voltage head inner end, and the rotating shaft of back of the body arc connects said back of the body arc voltage head outer end, back of the body arc hydraulic stem end, and the said back of the body arc hydraulic stem other end is fastenedly connected said circular turned piece;
Said inner arc briquetting is anchored on inner arc pressure head inner end, and the inner arc rotating shaft connects said inner arc pressure head outer end, inner arc screw rod end, and the said inner arc screw rod other end is fastenedly connected said circular turned piece through nut; Said back of the body arc voltage piece is anchored on back of the body arc voltage head inner end, and the rotating shaft of back of the body arc connects said back of the body arc voltage head outer end, back of the body arc screw rod end, and the said back of the body arc screw rod other end is fastenedly connected said circular turned piece through nut.
After adopting structure of the present invention, turbine blade revolution is milled the bracing frame base and is positioned on the platen face, before the blade processing, at first blade to be processed is passed the gyration block center of revolution bracing frame, with blade clamping to be processed on special-purpose rotary jig; Mill bracing frame through the turbine blade revolution again, compress intrados, convex surface respectively, blade to be processed is compressed the location blade to be processed through inner arc briquetting, back of the body arc voltage piece; During blade processing to be processed, under the effect of lathe driving rotational head, turn round, drive the circular turned piece revolution that bracing frame is milled in revolution; Realize that revolution adds the intermediate supports in man-hour; Guarantee the rigidity of linear leaf in process of steam turbine, make blade vibration little, guaranteed processing of leaves.
Description of drawings
Fig. 1 is the front view structural representation (removing the front side annular cover plate) of the specific embodiment of the invention one;
Fig. 2 is the front view structural representation (removing the front side annular cover plate) of the specific embodiment of the invention two;
Fig. 3 is the left view structural representation of Fig. 1 or Fig. 2.
The specific embodiment
Specific embodiment one: see Fig. 1, Fig. 3, it comprises base 1, loam cake 2, and loam cake 2, base 1 are through V-type groove 3, V-type tongue 4 location that cooperatively interacts; Screw 5 is fastenedly connected loam cake 2, base 1, and loam cake 2 lids are loaded on centre position, base 1 back and form manhole 6, and the hole of manhole 6 is along being evenly equipped with round roller 7; 8 cooperations of circular turned piece are loaded in the manhole 6, the outer of circular turned piece 8 contact circle roller 7, and the inside of circular turned piece 8 has supporting blades cavity 9; One side of supporting blades cavity 9 is equipped with inner arc briquetting 10; The offside of one side of supporting blades cavity 9 is equipped with back of the body arc voltage piece 11, and inner arc briquetting 10 press-fits in the intrados of blade 12 to be processed, and back of the body arc voltage piece 11 press-fits in the convex surface of blade 12 to be processed; Back of the body arc voltage piece 11 has two, and back of the body arc voltage piece 11 is positioned at the both sides of the center extended line of inner arc briquetting 10; After circular turned piece 8 was loaded in the manhole 6, annular cover plate 13 was anchored on the outer face, both sides of base 1, loam cake 2 formed manholes 6 respectively, and annular cover plate 13 blocks the outward flange of circular turned piece 8; Inner arc briquetting 10 is anchored on inner arc pressure head 14 inner ends, and inner arc rotating shaft 15 connects inner arc pressure head 14 outer ends, inner arc hydraulic stem 16 ends, and inner arc hydraulic stem 16 other ends are fastenedly connected circular turned piece 8; Back of the body arc voltage piece 11 is anchored on back of the body arc voltage head 17 inner ends, and back of the body arc rotating shaft 18 connects back of the body arc voltage head 17 outer ends, back of the body arc hydraulic stem 19 ends, and back of the body arc hydraulic stem 19 other ends are fastenedly connected circular turned piece 8.
Its operation principle is following: blade 12 to be processed passes supporting blades cavity 9; Inner arc hydraulic stem 16, back of the body arc hydraulic stem 19 inside hydraulic operation respectively make inner arc briquetting 10, back of the body arc voltage piece 11 press intrados, the convex surface of blade 12 to be processed respectively; Blade 12 to be processed is compressed the location; Blade 12 to be processed adds man-hour, under the effect of lathe driving rotational head, turns round, and drives circular turned piece 8 revolutions that bracing frame is milled in revolution.
Specific embodiment two: see Fig. 1, Fig. 3, wherein inner arc briquetting 10 is anchored on inner arc pressure head 14 inner ends, and inner arc rotating shaft 15 connects inner arc pressure head 14 outer ends, inner arc screw rod 20 ends, and inner arc screw rod 20 other ends are fastenedly connected circular turned piece 8 through nut 21; Back of the body arc voltage piece 11 is anchored on back of the body arc voltage head 17 inner ends, and back of the body arc rotating shaft 18 connects back of the body arc voltage head 17 outer ends, back of the body arc screw rod 22 ends, and back of the body arc screw rod 22 other ends are fastenedly connected circular turned piece 8 through nut 23.
Its operation principle is following: blade 12 to be processed passes supporting blades cavity 9; Manual adjustment inner arc screw rod 20, back of the body arc screw rod 22 make inner arc briquetting 10, back of the body arc voltage piece 11 press intrados, the convex surface of blade 12 to be processed respectively; Thereby fastening nut 21, nut 23 compress the location with blade 12 to be processed respectively then; Blade 12 to be processed adds man-hour, under the effect of lathe driving rotational head, turns round, and drives circular turned piece 8 revolutions that bracing frame is milled in revolution.
Claims (6)
1. bracing frame is milled in the turbine blade revolution; It comprises base, loam cake, and said loam cake is fastenedly connected said base, it is characterized in that: the centre position formed manhole after said loam cake lid was loaded on said base; The hole of said manhole is along being evenly equipped with round roller; The cooperation of circular turned piece is loaded in the said manhole, and the outer of said circular turned piece contacts said round roller, and the inside of said circular turned piece has the supporting blades cavity; One side of said supporting blades cavity is equipped with the inner arc briquetting; The offside of one side of said supporting blades cavity is equipped with back of the body arc voltage piece, and said inner arc briquetting press-fits the intrados in blade to be processed, and said back of the body arc voltage piece press-fits the convex surface in said blade to be processed.
2. bracing frame is milled in turbine blade according to claim 1 revolution, it is characterized in that: said loam cake, base are through V-type groove, the tongue location that cooperatively interacts, and screw is fastenedly connected said loam cake, base.
3. bracing frame is milled in turbine blade revolution according to claim 1, and it is characterized in that: said back of the body arc voltage piece has two, and said back of the body arc voltage piece is positioned at the both sides of the center extended line of said inner arc briquetting.
4. bracing frame is milled in turbine blade revolution according to claim 1; It is characterized in that: said circular turned packaged in said manhole after; Annular cover plate is anchored on the outer face, both sides of said base, the formed said manhole of loam cake respectively, and said annular cover plate blocks the outward flange of said circular turned piece.
5. bracing frame is milled in turbine blade revolution according to claim 1; It is characterized in that: said inner arc briquetting is anchored on inner arc pressure head inner end; The inner arc rotating shaft connects said inner arc pressure head outer end, inner arc hydraulic stem end, and the said inner arc hydraulic stem other end is fastenedly connected said circular turned piece; Said back of the body arc voltage piece is anchored on back of the body arc voltage head inner end, and the rotating shaft of back of the body arc connects said back of the body arc voltage head outer end, back of the body arc hydraulic stem end, and the said back of the body arc hydraulic stem other end is fastenedly connected said circular turned piece.
6. bracing frame is milled in turbine blade revolution according to claim 1; It is characterized in that: said inner arc briquetting is anchored on inner arc pressure head inner end; The inner arc rotating shaft connects said inner arc pressure head outer end, inner arc screw rod end, and the said inner arc screw rod other end is fastenedly connected said circular turned piece through nut; Said back of the body arc voltage piece is anchored on back of the body arc voltage head inner end, and the rotating shaft of back of the body arc connects said back of the body arc voltage head outer end, back of the body arc screw rod end, and the said back of the body arc screw rod other end is fastenedly connected said circular turned piece through nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100043499A CN102091956B (en) | 2011-01-11 | 2011-01-11 | Rotary milling support frame for blades of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100043499A CN102091956B (en) | 2011-01-11 | 2011-01-11 | Rotary milling support frame for blades of steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102091956A CN102091956A (en) | 2011-06-15 |
| CN102091956B true CN102091956B (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100043499A Expired - Fee Related CN102091956B (en) | 2011-01-11 | 2011-01-11 | Rotary milling support frame for blades of steam turbine |
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| CN (1) | CN102091956B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128566A (en) * | 2011-12-05 | 2013-06-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Auxiliary machining device preventing cutting deformation of thin-wall space curved face part |
| CN103252645B (en) * | 2013-03-21 | 2015-04-22 | 广州飞机维修工程有限公司 | Rotary assembling device of outer barrel of nose landing gear of airplane |
| CN104384981B (en) * | 2014-10-17 | 2017-12-01 | 南通中能机械制造有限公司 | Essence casting stator blade bobbin milling tool |
| CN105252069B (en) * | 2015-10-28 | 2019-03-19 | 成都振中电气有限公司 | The cutting system being fixedly mounted convenient for power distribution cabinet arc panel |
| CN105252074B (en) * | 2015-10-28 | 2019-03-19 | 成都振中电气有限公司 | Cutting process based on the cutting of arc cabinet door |
| CN106493593B (en) * | 2016-12-30 | 2018-08-31 | 无锡透平叶片有限公司 | Pre-determined bit jacking mechanism for arc tenon-tooth class blade |
| CN109333099A (en) * | 2018-10-11 | 2019-02-15 | 西北工业大学 | Blade of aviation engine processes multiple spot slewing supporting device |
| CN109877614A (en) * | 2019-02-09 | 2019-06-14 | 沈阳富创精密设备有限公司 | The processing technology of the curved profile part of high-precision geometric tolerance |
| CN111571254B (en) * | 2020-04-08 | 2021-11-26 | 湖南汇俊精密机械有限公司 | Manufacturing device for arc-shaped blade of steam turbine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU476947A1 (en) * | 1974-07-25 | 1975-07-15 | Ленинградский Металлический Завод Им. Хх11 Съезда Кпсс | The method of processing complex curved surfaces |
| DE102006041507B3 (en) * | 2006-08-31 | 2007-10-25 | Reinald Ramm | Method for fabricating tornado turbine, requires positioning milling cutters with mutual axial alignment on rotational vane blanks |
| CN101745672A (en) * | 2009-12-21 | 2010-06-23 | 东方电气集团东方汽轮机有限公司 | Method for processing slots on turbine rotor for mushroom-shaped blade roots |
| CN201565807U (en) * | 2009-11-03 | 2010-09-01 | 南通中能机械制造有限公司 | Tooling for processing convex surface of steam turbine blade |
| CN201604010U (en) * | 2010-01-15 | 2010-10-13 | 无锡市艾尔福叶片有限公司 | Universal rotary milling fixture for steam turbine blades |
| CN201940673U (en) * | 2011-01-11 | 2011-08-24 | 无锡市艾尔福叶片有限公司 | Turbine blade rotary milling supporting frame |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009024543A (en) * | 2007-07-18 | 2009-02-05 | Furutochi Kensetsu:Kk | Method for manufacturing hydraulic turbine installed in river |
-
2011
- 2011-01-11 CN CN2011100043499A patent/CN102091956B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU476947A1 (en) * | 1974-07-25 | 1975-07-15 | Ленинградский Металлический Завод Им. Хх11 Съезда Кпсс | The method of processing complex curved surfaces |
| DE102006041507B3 (en) * | 2006-08-31 | 2007-10-25 | Reinald Ramm | Method for fabricating tornado turbine, requires positioning milling cutters with mutual axial alignment on rotational vane blanks |
| CN201565807U (en) * | 2009-11-03 | 2010-09-01 | 南通中能机械制造有限公司 | Tooling for processing convex surface of steam turbine blade |
| CN101745672A (en) * | 2009-12-21 | 2010-06-23 | 东方电气集团东方汽轮机有限公司 | Method for processing slots on turbine rotor for mushroom-shaped blade roots |
| CN201604010U (en) * | 2010-01-15 | 2010-10-13 | 无锡市艾尔福叶片有限公司 | Universal rotary milling fixture for steam turbine blades |
| CN201940673U (en) * | 2011-01-11 | 2011-08-24 | 无锡市艾尔福叶片有限公司 | Turbine blade rotary milling supporting frame |
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| CN102091956A (en) | 2011-06-15 |
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