CN203510023U - Assembling tool of turbine partition plate guide blade - Google Patents
Assembling tool of turbine partition plate guide blade Download PDFInfo
- Publication number
- CN203510023U CN203510023U CN201320532129.8U CN201320532129U CN203510023U CN 203510023 U CN203510023 U CN 203510023U CN 201320532129 U CN201320532129 U CN 201320532129U CN 203510023 U CN203510023 U CN 203510023U
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- China
- Prior art keywords
- dividing plate
- guide vane
- base
- blade
- positioning
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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.)
- Expired - Lifetime
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Abstract
The utility model discloses an assembling tool of a turbine partition plate guide blade. The assembling tool comprises a head blade positioning check block and a tail blade positioning pressing block, wherein the head blade positioning check block is independent of the tail blade positioning pressing block; the head blade positioning check block mainly comprises a base, a positioning block and a baffle from low to high in a stair-stepping mode, the length of the base is larger than the distance between an inner ring of a partition plate and an outer ring of the partition plate, the length of the positioning block is the same as the distance between the inner ring of the partition plate and the outer ring of the partition plate, the length of the baffle is the same as the blade body length of a head guide blade, and the top end of the baffle is used for making contact with and positioning a blade body inner arc-shaped face of a head block guide blade on the partition plate; the tail blade positioning pressing block mainly comprises a base and a positioning block, the length of the base is larger than the distance between the inner ring of the partition plate and the outer ring of the partition plate, the positioning block is of an inclined block structure , the two ends of the positioning block are not the same in height, the positioning block is fixed to one side face of the base, the top surface of the positioning block is a positioning slope, and the positioning slope is used for making contact with and positioning a blade crown back arc-shaped face of a tail block guide blade on the partition plate. The assembling tool can be used for assembling and positioning the head block guide blade and the tail block guide blade visually, accurately, reliably and effectively.
Description
Technical field
The utility model relates to the guide vane assembly tooling of partition board of steam turbine, and it is especially suitable for use as the guide vane assembling of rotating barrier, is also suitable as the guide vane assembling of other stationary barrier.
Background technology
Dividing plate is the vitals that is used for fixing guide vane (nozzle) in steam turbine and stops interstage leakage, and it becomes a plurality of pressure stages by steam turbine interior separation, makes steam change potential energy into kinetic energy by nozzle ring, and makes steam flow direction in accordance with regulations flow into movable vane.The operating characteristic of dividing plate has directly determined the operational efficiency of steam turbine, and the performance height of dividing plate directly depends on the assembly precision of guide vane on dividing plate.
The dividing plate of steam turbine is various informative, such as having Shround-band type dividing plate, directly welded dividing plate, rotating barrier etc.Wherein, the guide vane assembling and positioning of Shround-band type dividing plate is by corresponding type hole is set on shroud, then each piece guide vane is inserted successively in type hole corresponding on shroud and is achieved; The guide vane assembling and positioning of directly welded dividing plate is that each piece guide vane is directly weldingly fixed on successively in the inner and outer rings of dividing plate and is achieved; The guide vane assembling and positioning of rotating barrier is by corresponding blade groove (blade groove is generally T-shaped structure) is set in dividing plate inner and outer rings, each piece guide vane is slipped in the blade groove in dividing plate inner and outer rings successively, at first guide vane and tail piece guide vane place, be aided with alignment pin and be achieved.
Because the guide vane of rotating barrier is the assembly structure that slips into coordinating with tongue-and-groove and tenon, the guide vane of rotating barrier is required in assembling and positioning process must Reliable guarantee to assembly parameter, these assembly parameters comprise throat opening, the contact area of adjacent two blades, and the position location precision of first guide vane and tail piece guide vane etc., the position location precision of first guide vane and tail piece guide vane can directly have influence on the assembly quality of whole nozzle ring.At present, owing to lacking special-purpose assembly tooling, the guide vane assembling and positioning of rotating barrier is that the mode by manual measurement, calculating completes, being about to first guide vane slides in the blade groove of dividing plate, measure the first inside and outside hat of guide vane with respect to the distance size of dividing plate horizontal flange, measured value and design load are contrasted, again the position of first guide vane is regulated, until meet design requirement, in like manner, tail piece guide vane is also to contrast with measured value and design load, and the mode regulating according to comparing result completes.Yet this obform body structure as molded line complexity of guide vane, there is defect directly perceived not, reliable in aforesaid assembling and positioning mode, thereby the guide vane assembly difficulty that causes rotating barrier is large, troublesome poeration, efficiency of assembling is low, assembly precision is low, the dividing plate poor product quality of not only producing, and can increase enterprise's production cost.
Summary of the invention
The purpose of this utility model is: for above-mentioned the deficiencies in the prior art, provide a kind of have simple in structure, structural strength is high, the feature such as easy to operate, can carry out intuitively guide vane, accurately, the partition board of steam turbine guide vane assembly tooling of reliable assembling and positioning.
The technical solution adopted in the utility model is: the assembly tooling of a kind of partition board of steam turbine guide vane, and described assembly tooling comprises separate first leaf position block and caudal lobe location briquetting; Described first leaf position block mainly consists of stepped from low to high base, locating piece and baffle plate, the length of base is greater than the distance between the interior ring of dividing plate and dividing plate outer shroud, distance in the corresponding dividing plate of length of locating piece between ring and dividing plate outer shroud, the blade length of the corresponding first guide vane of the length of baffle plate, arc shaped surface in the blade of the top of baffle plate first guide vane for contacting, in grid spacer; Described caudal lobe location briquetting mainly consists of base and locating piece, the length of base is greater than the distance between the interior ring of dividing plate and dividing plate outer shroud, locating piece is the not contour skewback structures in two ends, locating piece is fixed on base one side side, the end face of locating piece is inclined-plane, location, the integral shroud convex profile of inclined-plane, location tail piece guide vane for contacting, in grid spacer.
Further, the base of described first leaf position block is provided with the bolt hole corresponding with bolt hole on dividing plate split, and first leaf position block is bolted on the split of dividing plate.
Further, the width of ring and dividing plate outer shroud blade groove in the corresponding dividing plate of locating piece two ends width difference of described first leaf position block.
Further, the baffle plate top of described first leaf position block is the globoidal structure that is matched with arc shaped surface in first guide vane blade.
Further, the base of described first leaf position block, locating piece and baffle plate are integral forming structure or Split assembled structure.
Further, the base of described caudal lobe location briquetting is provided with the bolt hole corresponding with bolt hole on dividing plate split, and caudal lobe location briquetting is bolted on the split of dividing plate.
Further, in locating piece one end of described caudal lobe location briquetting, sink on the side of base, the other end extends the end face of base.
Further, the locating piece of described caudal lobe location briquetting extends the interior ring of the corresponding dividing plate of end width of base top surface or the width of dividing plate outer shroud blade groove.
Further, base and the locating piece of described caudal lobe location briquetting are integral forming structure or Split assembled structure.
The beneficial effects of the utility model are: the assembly tooling of said structure designs for guide vane assembling on dividing plate specially, it carries out assembling and positioning with line contact to first guide vane and tail piece guide vane, can form intuitively first guide vane and tail piece guide vane, accurately, reliably, effectively locate, thereby greatly facilitate the assembling work of guide vane on dividing plate, have simple in structure, structural strength is high, shock-resistant, easy to operate, versatility is good, the equal high of efficiency of assembling and assembly precision, the dividing plate product quality that assembling forms is high, effectively reduce enterprise's production cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is the guide vane structural representation assembling on dividing plate.
Fig. 2 is theory structure schematic diagram of the present utility model.
Fig. 3 is a kind of structural representation of the first leaf position block of the utility model.
Fig. 4 is the A-A view of Fig. 3.
Fig. 5 is a kind of structural representation of the utility model caudal lobe location briquetting.
Fig. 6 is the B-B view of Fig. 5.
Fig. 7 is the application schematic diagram of the utility model in dividing plate assembling process.
Code name implication in figure: 1-guide vane; Arc shaped surface in 1-1-blade; Arc shaped surface in 1-2-integral shroud; 1-3-blade convex profile; 1-4-integral shroud convex profile; 2-first leaf position block; 2-1,3-1-base; 2-2,3-2-locating piece; 2-3-baffle plate; 2-4-contact locating surface; 2-5,3-4-bolt hole; 3-caudal lobe location briquetting; Inclined-plane, 3-3-location; Ring in 4-dividing plate; 5-dividing plate outer shroud.
The specific embodiment
Referring to Fig. 1: the guide vane 1 assembling on partition board of steam turbine mainly consists of the integral shroud at blade and blade two ends, and blade is the obform body that is coincided and form by a specific rule by some characteristic cross-sections, the integral shroud at blade and the two ends structure that is formed in one.Aforementioned guide vane 1 comprises following several main feature profile: arc shaped surface 1-1, integral shroud interior arc shaped surface 1-2, blade convex profile 1-3 and integral shroud convex profile 1-4 in blade.Guide vane 1 on partition board of steam turbine, when assembling, requires the integral shroud convex profile of adjacent guide vane sheet and the interior arc shaped surface of integral shroud to be adjacent to, and by means such as inspection, repair, adjustment, finally guarantees that the steam passage throat opening size that adjacent guide vane sheet forms meets design requirement.
Referring to Fig. 2 to Fig. 6: existing in conjunction with above-mentioned guide vane 1 structure, describe content of the present utility model in detail, first following guide vane with tail piece guide vane because structure is consistent with the structure of above-mentioned guide vane 1, thereby when the description of first guide vane and tail piece guide vane, can relate to the feature profile of above-mentioned guide vane 1.The utility model comprises separate first leaf position block 2 and caudal lobe location briquetting 3.First leaf position block 2 is for first guide vane on the dividing plate of semi-loop carried out to assembling and positioning, and caudal lobe is located briquetting 3 for tail piece guide vane on the dividing plate of semi-loop is carried out to assembling and positioning, and detects the assembly precision of each piece guide vane.
Wherein, first leaf position block 2 mainly consists of stepped from low to high base 2-1, locating piece 2-2 and baffle plate 2-3.Base 2-1 and locating piece 2-2 are integral forming structure, the back side of base 2-1 and locating piece 2-2 flushes, baffle plate 2-3 is weldingly fixed on the back side of base 2-1 and locating piece 2-2, and the top of baffle plate 2-3 extends upward from the end face of locating piece 2-2, baffle plate 2-3 top answers corresponding first guide vane blade ad-hoc location (position contacting with first leaf position block 2) to the distance at dividing plate split place with the distance between base top surface.The length of aforementioned base 2-1 is greater than the distance between the interior ring 4 of dividing plate and dividing plate outer shroud 5, and at the two ends of base 2-1, be provided with the bolt hole 2-5 corresponding with bolt hole on dividing plate split, first leaf position block 2 in use, is bolted on the split of dividing plate.Distance in corresponding (being slightly less than) dividing plate of length of aforementioned locating piece 2-2 between ring 4 and dividing plate outer shroud 5, and the width of ring 4 and dividing plate outer shroud 5 blade grooves in respectively corresponding (being slightly less than) dividing plate of locating piece 2-2 two ends width, like this, first leaf position block 2 in use, locating piece 2-2 just can stretch between the interior ring 4 of dividing plate and dividing plate outer shroud 5, and stretches in the blade groove on the interior ring 4 of dividing plate and dividing plate outer shroud 5.The blade length of corresponding (being equal to or less than) first guide vane of length of said baffle 2-3, the top of baffle plate 2-3 is contact locating surface 2-4, contact locating surface 2-4 is for contact, arc shaped surface 1-1 in the blade of first guide vane in grid spacer, in order to make baffle plate 2-3 form good contact location with arc shaped surface 1-1 in the blade of first guide vane, the contact locating surface 2-4 of baffle plate 2-3 is the globoidal structure that is matched with arc shaped surface 1-1 in first guide vane blade, the width of contact locating surface 2-4 is far smaller than the blade width of first guide vane, so just can make to contact locating surface 2-4 and form " line contacts " (contact locating surface 2-4 is " line ") with first guide vane.Aforementioned base 2-1 and locating piece 2-2 also can adopt Split type structure, when each parts of first leaf position block 2 adopt Split type structure, these parts are combined into integral body by modes such as welding, riveted joint, bolt connection or joggles, and each parts of certain aforementioned first leaf position block 2 also can global formation.
Caudal lobe location briquetting 3 mainly consists of base 3-1 and locating piece 3-2.Base 3-1 and locating piece 3-2 are integral forming structure, can be also Split assembled structure (such as combining in modes such as welding, riveted joint, bolt connection or joggles).The length of aforementioned base 3-1 is greater than the distance between the interior ring 4 of dividing plate and dividing plate outer shroud 5, and at the two ends of base 3-1, be provided with the bolt hole 3-4 corresponding with bolt hole on dividing plate split, caudal lobe location briquetting 3 in use, is bolted on the split of dividing plate.Aforementioned locating piece 3-2 is the not contour skewback structures in two ends, locating piece 3-2 fixed and arranged is in base 3-1 mono-side side, in one end of locating piece 3-2, sink on the side of base 3-1 (the height of this end is lower than the height of base 3-1), the other end extends the end face (the height of this end is higher than the height of base 3-1) of base 3-1, and corresponding (being slightly less than) dividing plate outer shroud of the end width 5(that locating piece 3-2 extends base 3-1 end face can be also ring 4 in dividing plate) width of blade groove, the extended height (refer to peak) of locating piece 3-2 on base 3-1 end face should be greater than tail piece guide vane integral shroud outermost end to the distance at dividing plate split place, the end face of locating piece 3-2 is location inclined-plane 3-3, the integral shroud convex profile 1-4 of location inclined-plane 3-3 tail piece guide vane for contacting, in grid spacer, especially the molded line of integral shroud convex profile 1-4 outermost end, so just can make to locate inclined-plane 3-3 and form " line contacts " (the integral shroud convex profile 1-4 of tail piece guide vane is " line ") with tail piece guide vane.
Design concept of the present utility model is " turning face is line ", specifically: the upper contact of the baffle plate 2-3 locating surface 2-4 of first leaf position block 2 forms " line contacts " with the blade of first guide vane, and the molded line in the blade stage casing profile of definite first guide vane is contact molded line; The upper location of the locating piece 3-2 inclined-plane 3-3 of caudal lobe location briquetting 3 forms " line contacts " with the integral shroud convex profile 1-4 of tail piece guide vane, and the integral shroud convex profile 1-4 outermost end molded line of determining tail piece guide vane is contact molded line.In addition, consider that first leaf position block 2 can bear certain assembling impulsive force in the assembling process of each piece guide vane, require first leaf position block 2 to there is certain rigidity intensity.
Referring to Fig. 7: using method of the present utility model is, the first leaf position block 2 designing according to design load is assemblied in and in dividing plate, encircles 4 and the split place of dividing plate outer shroud 5, the locating piece 2-2 of first leaf position block 2 is stretched between the interior ring 4 of dividing plate and dividing plate outer shroud 5, and stretch in the blade groove of the interior ring 4 of dividing plate and dividing plate outer shroud 5, make as far as possible locating piece 2-2 in dividing plate, encircle 4 with relative fixing in the blade groove of dividing plate outer shroud 5, make again the end face laminating of base 2-1 end face and the interior ring 4 of dividing plate and the dividing plate outer shroud 5 of first leaf position block 2, in the situation that realizing aforementioned location, by bolt by first leaf position block 2 be fixed in dividing plate, encircle 4 and the split of dividing plate outer shroud 5 on, in dividing plate, encircle 4 and dividing plate outer shroud 5 between pack first guide vane into, arc shaped surface 1-1 in the blade of first guide vane is fully contacted with the locating surface 2-4 that contacts on first leaf position block 2, tail piece guide vane packs successively all the other each guide vanes into, until, in the process of each guide vane assembling, should guarantee the key values such as throat opening, contact area, bizet gap, the caudal lobe location briquetting 3 designing according to design load is assemblied in and in dividing plate, encircles 4 and the split place of dividing plate outer shroud 5, the locating piece 3-2 of caudal lobe location briquetting 3 is stretched between the interior ring 4 of dividing plate and dividing plate outer shroud 5, make as far as possible locating piece 3-2 extend the end face of base 3-1 end face and the blade groove groove bottom of dividing plate outer shroud 5 flushes, make again the end face laminating of base 3-1 end face and the interior ring 4 of dividing plate and the dividing plate outer shroud 5 of caudal lobe location briquetting 3, the molded line of guaranteeing the integral shroud convex profile 1-4 outermost end of tail piece guide vane fully contacts with inclined-plane, the location 3-3 of caudal lobe location briquetting 3, in the situation that realizing aforementioned location, by bolt by caudal lobe locate briquetting 3 be fixed in dividing plate, encircle 4 and the split of dividing plate outer shroud 5 on, inside and outside labeling at first guide vane and tail piece guide vane bored respectively dowel hole, and location round pin is installed in the dowel hole getting out, and with this, completes each guide vane assembling on dividing plate, from dividing plate, pulls down first leaf position block 2 and caudal lobe location briquetting 3.
In above-mentioned use procedure, if finding the integral shroud convex profile 1-4 outermost end molded line of tail piece guide vane cannot realize fully and contacting with caudal lobe location briquetting 3, or caudal lobe is located the base 3-1 end face of briquetting 3 and the gap value of dividing plate horizontal flange is overproof, should check the assembly precision of each guide vane and reprocess the overproof guide vane of part.
Claims (9)
1. a partition board of steam turbine guide vane assembly tooling, is characterized in that: described assembly tooling comprises separate first leaf position block (2) and caudal lobe location briquetting (3); Described first leaf position block (2) mainly consists of stepped from low to high base (2-1), locating piece (2-2) and baffle plate (2-3), the length of base (2-1) is greater than the distance between the interior ring of dividing plate (4) and dividing plate outer shroud (5), distance in the corresponding dividing plate of length of locating piece (2-2) between ring (4) and dividing plate outer shroud (5), the blade length of the corresponding first guide vane of the length of baffle plate (2-3), arc shaped surface (1-1) in the blade of the top of baffle plate (2-3) first guide vane for contacting, in grid spacer; Described caudal lobe location briquetting (3) mainly consists of base (3-1) and locating piece (3-2), the length of base (3-1) is greater than the distance between the interior ring of dividing plate (4) and dividing plate outer shroud (5), locating piece (3-2) is the not contour skewback structures in two ends, locating piece (3-2) is fixed on base (3-1) side side, the end face of locating piece (3-2) is inclined-plane (3-3), location, the integral shroud convex profile (1-4) of inclined-plane, location (3-3) tail piece guide vane for contacting, in grid spacer.
2. partition board of steam turbine guide vane assembly tooling according to claim 1, it is characterized in that: the base (2-1) of described first leaf position block (2) is provided with the bolt hole (2-5) corresponding with bolt hole on dividing plate split, and first leaf position block (2) is bolted on the split of dividing plate.
3. partition board of steam turbine guide vane assembly tooling according to claim 1, is characterized in that: locating piece (2-2) the two ends width of described first leaf position block (2) is the interior width that encircles (4) and dividing plate outer shroud (5) blade groove of corresponding dividing plate respectively.
4. partition board of steam turbine guide vane assembly tooling according to claim 1, is characterized in that: baffle plate (2-3) top of described first leaf position block (2) is for being matched with the globoidal structure of arc shaped surface (1-1) in first guide vane blade.
5. partition board of steam turbine guide vane assembly tooling according to claim 1, is characterized in that: the base (2-1) of described first leaf position block (2), locating piece (2-2) and baffle plate (2-3) are integral forming structure or Split assembled structure.
6. partition board of steam turbine guide vane assembly tooling according to claim 1, it is characterized in that: the base (3-1) of described caudal lobe location briquetting (3) is provided with the bolt hole (3-4) corresponding with bolt hole on dividing plate split, and caudal lobe location briquetting (3) is bolted on the split of dividing plate.
7. partition board of steam turbine guide vane assembly tooling according to claim 1, is characterized in that: in locating piece (3-2) one end of described caudal lobe location briquetting (3), sink on the side of base (3-1), the other end extends the end face of base (3-1).
8. partition board of steam turbine guide vane assembly tooling according to claim 7, is characterized in that: the locating piece (3-2) of described caudal lobe location briquetting (3) extends the corresponding interior ring of dividing plate of end width (4) of base (3-1) end face or the width of dividing plate outer shroud (5) blade groove.
9. partition board of steam turbine guide vane assembly tooling according to claim 1, is characterized in that: base (3-1) and the locating piece (3-2) of described caudal lobe location briquetting (3) are integral forming structure or Split assembled structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532129.8U CN203510023U (en) | 2013-08-29 | 2013-08-29 | Assembling tool of turbine partition plate guide blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532129.8U CN203510023U (en) | 2013-08-29 | 2013-08-29 | Assembling tool of turbine partition plate guide blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203510023U true CN203510023U (en) | 2014-04-02 |
Family
ID=50369005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320532129.8U Expired - Lifetime CN203510023U (en) | 2013-08-29 | 2013-08-29 | Assembling tool of turbine partition plate guide blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203510023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953022A (en) * | 2019-11-25 | 2020-04-03 | 东方电气集团东方汽轮机有限公司 | Steam turbine nozzle set and six-arc-section full-circumference steam inlet type nozzle structure |
| CN114211438A (en) * | 2021-12-14 | 2022-03-22 | 东方电气集团东方汽轮机有限公司 | Transverse stationary blade assembling method and positioning tool |
-
2013
- 2013-08-29 CN CN201320532129.8U patent/CN203510023U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953022A (en) * | 2019-11-25 | 2020-04-03 | 东方电气集团东方汽轮机有限公司 | Steam turbine nozzle set and six-arc-section full-circumference steam inlet type nozzle structure |
| CN114211438A (en) * | 2021-12-14 | 2022-03-22 | 东方电气集团东方汽轮机有限公司 | Transverse stationary blade assembling method and positioning tool |
| CN114211438B (en) * | 2021-12-14 | 2023-08-18 | 东方电气集团东方汽轮机有限公司 | Transverse stationary blade assembling method and positioning tool |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
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| CX01 | Expiry of patent term |