CN201614946U - Oblique surrounding belt for partition board of turbine - Google Patents
Oblique surrounding belt for partition board of turbine Download PDFInfo
- Publication number
- CN201614946U CN201614946U CN2010203016583U CN201020301658U CN201614946U CN 201614946 U CN201614946 U CN 201614946U CN 2010203016583 U CN2010203016583 U CN 2010203016583U CN 201020301658 U CN201020301658 U CN 201020301658U CN 201614946 U CN201614946 U CN 201614946U
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- oblique
- partition board
- utility
- stator hole
- model
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Abstract
The utility model discloses an oblique surrounding belt for the partition board of a turbine. The oblique surrounding belt comprises a half circular cone-shaped oblique surrounding belt body, and positioning small circular arc notches (3) for cutting a guide vane hole (2) are formed equidistantly at the inner arc part of a sector plate (1). In the utility model, the positioning small circular arc notches (3) for cutting the guide vane hole (2) are formed equidistantly at the inner arc part of the sector plate, so that when the guide vane hole is shaped, the original processing method is changed to be a line cutting processing method with lower cost; and line cutting tooling is accurately positioned by depending on the positioning small circular arc notches. By adopting the structure and the processing method, the manufacture of the tooling clamp is simple, the cost is lower, and the accuracy of the processed guide vane hole is high.
Description
Technical field
The utility model relates to a kind of turbine component, especially relates to the oblique shroud of a kind of partition board of steam turbine.
Background technique
The oblique shroud of steam turbine machine dividing plate is one of steam turbine important spare part, and its structure is mainly by the coniform oblique shroud body that is put together behind two sector reels, uniform a plurality of stators hole that is provided with on the conical surface.The processing method in its stator hole mainly contains: the processing technology of punch press punching, tiltedly shroud becomes the half-conical tubular by the stainless heat-resistance roll of steel plate, be put in then on the index table taper die, again with graphite electrode electrical pulse processing stator hole or drift punching, whenever rotate a five equilibrium angle after doing a stator hole, process shroud stator hole one by one, be to adjust gap all around, stator hole in punching to adjust size of current or punch die precision, calibration by lathe is determined pitch accuracy, a kind of oblique shroud of the every processing of above processing method need be prepared the complicated and comparatively huge mould of a cover, required cost height, not only the process-cycle of mould is long, and the long processing time of shroud itself, efficient is low.The processing technology in five-axle linkage laser beam cutting stator hole can satisfy the angle of inclination of oblique shroud and the requirement of lagging edge and radial ray angle, can guarantee that the gap in stator hole is evenly accurate simultaneously, can satisfy every required precision of product, but cost an arm and a leg.
The model utility content
Technical problem to be solved in the utility model provides a kind of guarantee accurately to process stator hole and the lower oblique shroud of partition board of steam turbine of manufacture cost.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: the oblique shroud of a kind of partition board of steam turbine, comprise the oblique shroud body of the semi-conical that is formed by the sector reel, the interior camber line place spaced set of its sector is useful on the little arc gap in location in cutting stator hole.
The quantity of the little arc gap in described location is identical with the quantity in stator hole.
The oblique shroud of the utility model partition board of steam turbine, be useful on the little arc gap in location in cutting stator hole at the interior camber line place of sector spaced set, when moulding stator hole, can change lower-cost line cutting process by original processing method into, and rely on the little arc gap in location to come accurate line of position cutting tool, after adopting such structure and processing method, frock clamping is made simply, cost is lower, and the stator hole precision that processes is higher.
The oblique shroud of the utility model partition board of steam turbine, the quantity of locating little arc gap is identical with the quantity in stator hole, can rely on each to locate little arc gap like this and cut out the stator hole successively, whenever cut out and positioning tool is moved a pitch behind the stator hole and get final product.
In sum, the oblique shroud of the utility model dividing plate, architecture advances is simple and practical, greatly reduces its manufacture cost and has guaranteed machining accuracy.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the plan view of the oblique shroud of the utility model partition board of steam turbine.
Fig. 2 is the sector unfolded drawing of the oblique shroud of the utility model partition board of steam turbine.
Wherein, reference character: 1 is sector, and 2 is the stator hole, and 3 are the little arc gap in location.
Embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As depicted in figs. 1 and 2, the oblique shroud of the utility model partition board of steam turbine comprises the oblique shroud body of the semi-conical that is formed by sector 1 reel, and the interior camber line place spaced set of its sector 1 is useful on the little arc gap 3 in location in cutting stator hole 2.The manufacture process of the oblique shroud of this partition board of steam turbine is as follows: elder generation processes sector 1 by two coordinate numerical control laser cutters and interior camber line place equidistantly cuts out the little arc gap 3 in location; Radius at the little arc gap 3 of sector 1 is comparatively suitable at R2～4mm, is designed to 3mm here; And then sector 1 is fixed on the worktable, adopt wire cutting method on sector 1, to process stator hole 2 successively, during stator hole 2 of every processing, all adopts the little arc gap 3 in location to carry out the line cutting tool and locate; After processing the stator hole, again sector 1 is become to produce the oblique shroud of semi-conical and gets final product rolling a bed coiling.The oblique shroud of the utility model partition board of steam turbine, its quantity of locating little arc gap 3 is identical with the quantity in stator hole 2, like this when cutting stator hole 2, using each to locate little arc gap 3 successively comes the line of position cutting tool to get final product, in order to improve the stability of location, also can adopt two little arc gaps 3 to locate stator hole 2 of processing, the sum that so just requires to locate little arc gap 3 is Duoed one than the sum in stator hole 2 at every turn.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. the oblique shroud of partition board of steam turbine comprises the oblique shroud body of semi-conical that is formed by sector (1) reel, it is characterized in that: the interior camber line place spaced set of described sector (1) is useful on the little arc gap in location (3) in cutting stator hole (2).
2. the oblique shroud of partition board of steam turbine according to claim 1 is characterized in that: the quantity of the little arc gap in described location (3) is identical with the quantity of stator hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203016583U CN201614946U (en) | 2010-01-27 | 2010-01-27 | Oblique surrounding belt for partition board of turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203016583U CN201614946U (en) | 2010-01-27 | 2010-01-27 | Oblique surrounding belt for partition board of turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201614946U true CN201614946U (en) | 2010-10-27 |
Family
ID=43001316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203016583U Expired - Fee Related CN201614946U (en) | 2010-01-27 | 2010-01-27 | Oblique surrounding belt for partition board of turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201614946U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974984A (en) * | 2012-12-03 | 2013-03-20 | 哈尔滨汽轮机厂有限责任公司 | Method for machining steam turbine separation plate girdle holes by adopting numerical-control linear cutting machine |
| CN103737258A (en) * | 2013-12-20 | 2014-04-23 | 东方电气集团东方汽轮机有限公司 | Method for machining air power equipment girdle |
| CN110695623A (en) * | 2019-10-18 | 2020-01-17 | 哈尔滨汽轮机厂有限责任公司 | Process for machining fan-shaped section |
-
2010
- 2010-01-27 CN CN2010203016583U patent/CN201614946U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974984A (en) * | 2012-12-03 | 2013-03-20 | 哈尔滨汽轮机厂有限责任公司 | Method for machining steam turbine separation plate girdle holes by adopting numerical-control linear cutting machine |
| CN103737258A (en) * | 2013-12-20 | 2014-04-23 | 东方电气集团东方汽轮机有限公司 | Method for machining air power equipment girdle |
| CN110695623A (en) * | 2019-10-18 | 2020-01-17 | 哈尔滨汽轮机厂有限责任公司 | Process for machining fan-shaped section |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20140127 |