CN205120017U - A volume of twising reverse measuring device that is used for overcritical steam turbine pretwist type blade to assemble - Google Patents
A volume of twising reverse measuring device that is used for overcritical steam turbine pretwist type blade to assemble Download PDFInfo
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- CN205120017U CN205120017U CN201520971391.1U CN201520971391U CN205120017U CN 205120017 U CN205120017 U CN 205120017U CN 201520971391 U CN201520971391 U CN 201520971391U CN 205120017 U CN205120017 U CN 205120017U
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Abstract
A volume of twising reverse measuring device that is used for overcritical steam turbine pretwist type blade to assemble belongs to vapour turbine machinery assembly field, the utility model discloses a solve overcritical steam turbine pretwist type blade when assembly volume of twising reverse accurate problem inadequately. The utility model discloses a locating plate, stand, handle, axle, axle sleeve, packing ring, cover, locating lever, universal magnetic force gauge stand and percentage table, two arc surfaces and the steam turbine stator portion of locating plate cup joint on the arc locating surface of septalium, the stand lower extreme is fixed in the locating plate upper end between two parties, the axle has been cup jointed to the stand upper end, the handle connects at the axle left end soon, the locating lever is installed at the axle right -hand member, the axle sleeve cup joints epaxial, and be located between the upper end of handle and stand, packing ring and cup jointing between the upper end of locating lever and stand, the power input of universal magnetic force gauge stand is connected to the power take off end of axle, adjustment handle, the angle of universal magnetic force gauge stand changes, the percentage table is installed on universal magnetic force gauge stand. The utility model is used for the assembly of overcritical steam turbine pretwist type blade.
Description
Technical field
The utility model relates to a kind of torsional capacity measurement mechanism of pretwist type blade, belongs to steam turbine Automatic manual transmission field.
Background technology
It is that relative for blade shroud band blade root is first reversed an angle that pretwist is installed, and when during operation, shroud will be separated from each other under centrifugal force and thermal expansion, the relative blade root of shroud turns round again an angle, to keep between shroud still compact siro spinning technology.Thus reduce blade coefficient in groups, improve blade rupture safety factor value.Pretwist angle must control within the specific limits, and windup-degree crosses the plastic yield of ambassador's blade; On the contrary, as windup-degree is too little, blade shroud band can be made operationally to occur gap, do not reach the object of pretwist.Therefore design suitable measurement frock to realize blade shroud band, the accurate measurement of intermediate torsional capacity become pretwist type move guide vane assembling key.
Summary of the invention
When the utility model object is to solve supercritical pressure turbine pretwist type blade assernbling, the accurate not problem of torsional capacity, provides a kind of torsional capacity measurement mechanism for supercritical pressure turbine pretwist type blade assernbling.
Torsional capacity measurement mechanism for supercritical pressure turbine pretwist type blade assernbling of the present invention, it comprises location-plate, column, handle, axle, axle sleeve, packing ring, cover, backstay, universal magnetic gauge stand and dial gauge, two arc surfaces and the steam turbine stator portion of location-plate are socketed on the arc locating surface of septalium, column is " convex " font, the lower end of column is fixed on the upper end of location-plate between two parties, the upper end of column is socketed with axle, handle is screwed in the left end of axle, backstay is arranged on the right-hand member of axle, axle sleeve is socketed on axle, and between handle and the upper end of column, packing ring and cover are socketed between backstay and the upper end of column, the clutch end of axle connects the power intake of universal magnetic gauge stand, adjusting handle, the angle of universal magnetic gauge stand changes, dial gauge is arranged on universal magnetic gauge stand,
Adjusting handle, axle, axle sleeve, packing ring and cover are rotated, the angle of regulating shaft, regulate the length of backstay simultaneously, make the locator sub contact of backstay on locating surface, regulate the angle of axle sleeve and the angle of universal magnetic gauge stand, the gauge outfit of dial gauge is contacted with the shroud of blade steam output side, screw handle, axle, axle sleeve, packing ring and cover are fixed, make torsional capacity measurement mechanism and septalium circumference three-point fix, circumferentially slip torsional capacity measurement mechanism, make dial gauge gauge outfit move to minimum point by blade shroud band peak.
Advantage of the present invention: the utility model solves a supercritical pressure turbine pretwist type blade twist measurement amount difficult problem, by dial gauge pointer situation of change, directly accurately can measure the change of blade twist amount, achieve the accurate measurement of the torsional capacity of pretwist type blade, for pretwist type blade assernbling proposes new Fixture Design theory.
Accompanying drawing explanation
Fig. 1 is the structural representation of the torsional capacity measurement mechanism for supercritical pressure turbine pretwist type blade assernbling of the present invention.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, for the torsional capacity measurement mechanism of supercritical pressure turbine pretwist type blade assernbling described in present embodiment, it comprises location-plate 1, column 3, handle 4, axle 5, axle sleeve 6, packing ring 7, cover 8, backstay 9, universal magnetic gauge stand 10 and dial gauge 2, two arc surfaces and the steam turbine stator portion of location-plate 1 are socketed on the arc locating surface of septalium, column 3 is " convex " font, the lower end of column 3 is fixed on the upper end of location-plate 1 between two parties, the upper end of column 3 is socketed with axle 5, handle 4 is screwed in the left end of axle 5, backstay 9 is arranged on the right-hand member of axle 5, axle sleeve 6 is socketed on axle 5, and between handle 4 and the upper end of column 3, packing ring 7 and cover 8 are socketed between the upper end of backstay 9 and column 3, the clutch end of axle 5 connects the power intake of universal magnetic gauge stand 10, adjusting handle 4, the angle of universal magnetic gauge stand 10 changes, dial gauge 2 is arranged on universal magnetic gauge stand 10,
Adjusting handle 4, axle 5, axle sleeve 6, packing ring 7 and cover 8 is rotated, the angle of regulating shaft 5, regulate the length of backstay 9 simultaneously, make the locator sub contact of backstay 9 on locating surface, regulate the angle of axle sleeve 6 and the angle of universal magnetic gauge stand 10, the gauge outfit of dial gauge 2 is contacted with the shroud of blade steam output side, screw handle 4, axle 5, axle sleeve 6, packing ring 7 and cover 8 are fixed, make torsional capacity measurement mechanism and septalium circumference three-point fix, circumferentially slip torsional capacity measurement mechanism, make dial gauge 2 gauge outfit move to minimum point by blade shroud band peak.
Embodiment two: present embodiment is described further embodiment one, and it also comprises hexagon thin nut, dial gauge 2 is arranged on universal magnetic gauge stand 10 by hexagon thin nut.
Blade involved by the utility model is compared with the T-shaped blade root stator of routine, there is following characteristics: (1) blade root intermediate and shroud appearance profile are parallelogram, blade hit in dividing plate race tightly in place after, relative race produces certain torsional capacity; (2) caulking strip stretching is adopted bottom blade root and between race; (3) complete machine stator is without adding sheet design, often props up stator and all has certain stock removal.
In the utility model, overlap upper level septalium arc locating surface with location-plate two arc contact surfaces and stator portion, adjust handle of loosing one's grip, axle, axle sleeve, packing ring, cover can freely be rotated.The angle of adjustment axle, adjusts the length of backstay simultaneously, makes backstay locator sub contact side-locating face on septalium.Adjustment axle sleeve angle and universal magnetic gauge stand angle, dial gauge gauge outfit is contacted with blade steam output side shroud, screw handle axle, axle sleeve, packing ring, cover are fixed, make torsional capacity survey instrument and the three-point fix of septalium circumference, circumferentially slip torsional capacity instrument, make dial gauge gauge outfit move to minimum point by blade shroud band peak, record dial gauge pointer situation of change, accurately measures the change of blade twist amount.
Claims (2)
1. for the torsional capacity measurement mechanism of supercritical pressure turbine pretwist type blade assernbling, it is characterized in that, it comprises location-plate (1), column (3), handle (4), axle (5), axle sleeve (6), packing ring (7), cover (8), backstay (9), universal magnetic gauge stand (10) and dial gauge (2), two arc surfaces and the steam turbine stator portion of location-plate (1) are socketed on the arc locating surface of septalium, column (3) is " convex " font, the lower end of column (3) is fixed on the upper end of location-plate (1) between two parties, the upper end of column (3) is socketed with axle (5), handle (4) is screwed in the left end of axle (5), backstay (9) is arranged on the right-hand member of axle (5), axle sleeve (6) is socketed on axle (5), and between the upper end being positioned at handle (4) and column (3), packing ring (7) and cover (8) are socketed between the upper end of backstay (9) and column (3), the clutch end of axle (5) connects the power intake of universal magnetic gauge stand (10), adjusting handle (4), the angle of universal magnetic gauge stand (10) changes, dial gauge (2) is arranged on universal magnetic gauge stand (10),
Adjusting handle (4), make axle (5), axle sleeve (6), packing ring (7) and cover (8) rotate, the angle of regulating shaft (5), regulate the length of backstay (9) simultaneously, make the locator sub contact of backstay (9) on locating surface, regulate the angle of axle sleeve (6) and the angle of universal magnetic gauge stand (10), the gauge outfit of dial gauge (2) is contacted with the shroud of blade steam output side, screw handle (4), by axle (5), axle sleeve (6), packing ring (7) and cover (8) are fixed, make torsional capacity measurement mechanism and the three-point fix of septalium circumference, circumferentially slip torsional capacity measurement mechanism, dial gauge (2) gauge outfit is made to move to minimum point by blade shroud band peak.
2. the torsional capacity measurement mechanism for supercritical pressure turbine pretwist type blade assernbling according to claim 1, it is characterized in that, it also comprises hexagon thin nut, and dial gauge (2) is arranged on universal magnetic gauge stand (10) by hexagon thin nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520971391.1U CN205120017U (en) | 2015-11-27 | 2015-11-27 | A volume of twising reverse measuring device that is used for overcritical steam turbine pretwist type blade to assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520971391.1U CN205120017U (en) | 2015-11-27 | 2015-11-27 | A volume of twising reverse measuring device that is used for overcritical steam turbine pretwist type blade to assemble |
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| Publication Number | Publication Date |
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| CN205120017U true CN205120017U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520971391.1U Active CN205120017U (en) | 2015-11-27 | 2015-11-27 | A volume of twising reverse measuring device that is used for overcritical steam turbine pretwist type blade to assemble |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507437A (en) * | 2018-03-30 | 2018-09-07 | 中国航发航空科技股份有限公司 | The tangential movable amount detecting device of aircraft engine turbo blade |
| CN109812300A (en) * | 2019-02-12 | 2019-05-28 | 哈尔滨汽轮机厂有限责任公司 | It is a kind of consider pretwist amount the small enthalpy drop blade dimensions of steam turbine determine method |
| CN111256636A (en) * | 2018-11-30 | 2020-06-09 | 上海电气电站设备有限公司 | Method for measuring torsion of blade |
| CN114777623A (en) * | 2022-05-23 | 2022-07-22 | 哈尔滨汽轮机厂有限责任公司 | Radial line angle ruler for rotor blades of steam turbine set |
| CN115008402A (en) * | 2022-06-16 | 2022-09-06 | 吉林省电力科学研究院有限公司 | Blade root angle measuring and adjusting device for steam turbine blade |
-
2015
- 2015-11-27 CN CN201520971391.1U patent/CN205120017U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507437A (en) * | 2018-03-30 | 2018-09-07 | 中国航发航空科技股份有限公司 | The tangential movable amount detecting device of aircraft engine turbo blade |
| CN111256636A (en) * | 2018-11-30 | 2020-06-09 | 上海电气电站设备有限公司 | Method for measuring torsion of blade |
| CN111256636B (en) * | 2018-11-30 | 2021-11-19 | 上海电气电站设备有限公司 | Method for measuring torsion of blade |
| CN109812300A (en) * | 2019-02-12 | 2019-05-28 | 哈尔滨汽轮机厂有限责任公司 | It is a kind of consider pretwist amount the small enthalpy drop blade dimensions of steam turbine determine method |
| CN109812300B (en) * | 2019-02-12 | 2021-08-17 | 哈尔滨汽轮机厂有限责任公司 | Turbine small enthalpy drop blade size determination method considering pre-twisting amount |
| CN114777623A (en) * | 2022-05-23 | 2022-07-22 | 哈尔滨汽轮机厂有限责任公司 | Radial line angle ruler for rotor blades of steam turbine set |
| CN114777623B (en) * | 2022-05-23 | 2023-12-26 | 哈尔滨汽轮机厂有限责任公司 | Radial angle ruler of turbine unit rotor blade |
| CN115008402A (en) * | 2022-06-16 | 2022-09-06 | 吉林省电力科学研究院有限公司 | Blade root angle measuring and adjusting device for steam turbine blade |
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| C14 | Grant of patent or utility model | ||
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