CN102825565A - Tail breaking fixture for reducing throat area of turbine guide device and tail breaking tool with same - Google Patents
Tail breaking fixture for reducing throat area of turbine guide device and tail breaking tool with same Download PDFInfo
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- CN102825565A CN102825565A CN2012103220540A CN201210322054A CN102825565A CN 102825565 A CN102825565 A CN 102825565A CN 2012103220540 A CN2012103220540 A CN 2012103220540A CN 201210322054 A CN201210322054 A CN 201210322054A CN 102825565 A CN102825565 A CN 102825565A
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- blade
- pressing device
- blade back
- leaf basin
- positioner
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Abstract
The invention provides a tail breaking fixture for reducing the throat area of a turbine guide device and a tail breaking tool with the same. The tail breaking fixture for reducing the throat area of the turbine guide device comprises a blade basin position clamping device and a blade back pushing and pressing device, wherein the blade back pushing and pressing device is opposite to the blade basin position clamping device, and a blade trough for clamping a turbine guide device blade is formed between the blade basin position clamping device and the blade back pushing and pressing device. According to the tail breaking fixture for reducing the throat area of the turbine guide device and the tail breaking tool with the same, which are disclosed by the invention, the blade basin position clamping device and the blade back pushing and pressing device are arranged. When the turbine guide device blade is arranged in the blade trough between the blade basin position clamping device and the blade back pushing and pressing device, the blade basin of the turbine guide device blade is positioned by the blade basin position clamping device, the blade back pushing and pressing device is acted on the blade back so as to enable the tail edge of the blade to be evenly stressed in a regulation process, and the problems of stress concentration and residual stress generation due to uneven deformation caused by uneven stressing are avoided.
Description
Technical field
The present invention relates to engine assembling and debugging acid field, turn down breaking the tail anchor clamps off with the fingers and thumb and having its tail instrument of breaking off with the fingers and thumb of nozzle ring throat opening area in particular to a kind of.
Background technology
Because of there is manufacture deviation in process of production in each parts of engine; Its performance can't reach designing requirement behind the assembling complete machine; Need carry out the engine performance debugging; And effective method is adjustment nozzle ring throat opening area the most, the general at present mode that adopts polishing turbine nozzle vane throat place, mode that turbine nozzle vane divides into groups or break the tail method off with the fingers and thumb.Thereby breaking tail method adjustment nozzle ring throat opening area off with the fingers and thumb generally is through applied external force blade trailing edge to be deformed to change the throat opening area of nozzle ring.Because of this method can not be destroyed nozzle ring surface oxidation-resistant, etch resistant layer when adjusting the nozzle ring throat opening area, simple to operate, can the nozzle ring area be opened greatly or turn down within the specific limits, use wider.The common clamp of general employing make the blade trailing edge distortion in the prior art; And the blade trailing edge deflection can't accurately be measured when adopting common clamp; Can only lean on the workman with sensation and experience, efficient is lower, thereby and adjust inaccurate be prone to blade trailing edge distortion excessively occur blade repeated adjustment problem; Adjusting blade repeatedly will influence the life-span of nozzle ring, even the blade crackle possibly occur and cause part to be scrapped.And adopt common clamp when turning down the nozzle ring throat opening area, and all there is uneven problem in the distortion of blade trailing edge and stressed, and adjustment occurs the stress concentration phenomenon later easily and produces residual stress.
Summary of the invention
The present invention aims to provide a kind of can making and stressedly in the blade trailing edge adjustment process turns down breaking the tail anchor clamps off with the fingers and thumb and having its tail instrument of breaking off with the fingers and thumb of nozzle ring throat opening area uniformly, to solve common clamp discontinuity and cause being out of shape uneven problem in the process that turns down the nozzle ring throat opening area.
The invention provides a kind of turn down the nozzle ring throat opening area break the tail anchor clamps off with the fingers and thumb; Comprise leaf basin positioner and the blade back pressing device that is oppositely arranged with leaf basin positioner, form the blade draw-in groove of clip turbine nozzle vane between leaf basin positioner and the blade back pressing device.
Further, leaf basin positioner have the leaf basin trailing edge that withstands turbine nozzle vane near inner flow passage side first flange with withstand second flange of the leaf basin trailing edge of turbine nozzle vane near the outer flow passage side; The blade back pressing device acts on the blade back trailing edge of turbine nozzle vane.
Further, the chord length of turbine nozzle vane is L, and the degree of depth of blade draw-in groove is L1, wherein, and 0.25L≤L1≤0.38L.
Further, the width of blade back pressing device is less than the width of leaf basin positioner.
Further, leaf basin positioner and blade back pressing device have fillet near the edge of the open side of blade draw-in groove.
Further, leaf basin positioner is consistent with the leaf basin trailing edge molded lines of turbine nozzle vane near the bus of first end face of blade back pressing device.
Further, the blade back pressing device is consistent with the blade back trailing edge molded lines of turbine nozzle vane near the bus of second end face of leaf basin positioner.
The present invention also provides a kind of tail instrument of breaking off with the fingers and thumb, comprises fixed muffle, first end of fixed muffle be provided with aforesaid turn down the nozzle ring throat opening area break the tail anchor clamps off with the fingers and thumb; The leaf basin positioner of breaking the tail anchor clamps off with the fingers and thumb that turns down the nozzle ring throat opening area is fixedly installed on first end of fixed muffle, and the relative leaf basin of blade back pressing device positioner is arranged on the fixed muffle movably; Second end of fixed muffle is provided with and drives the blade back pressing device relative to rotary mechanism that leaf basin positioner moves.
Further, fixed muffle is provided with guide rail, and the blade back pressing device is arranged in the guide rail.
Further, also be provided with the digital displacement measurement mechanism of measuring and showing the relative leaf basin of blade back pressing device positioner amount of movement on the fixed muffle.
Turn down breaking the tail anchor clamps off with the fingers and thumb and having its tail instrument of breaking off with the fingers and thumb of nozzle ring throat opening area according to of the present invention; Through leaf basin positioner and blade back pressing device are set; When turbine nozzle vane is placed in the blade draw-in groove between the two; Leaf basin positioner is to the leaf basin location of turbine nozzle vane, and the blade back pressing device acts on the blade back, thereby makes in the blade trailing edge adjustment process stressed even; Prevent unbalance stress effectively and cause being out of shape inhomogeneous, occur that stress is concentrated and produce the problem of residual stress.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is a side-looking structural representation of breaking the tail anchor clamps off with the fingers and thumb of opening big nozzle ring throat opening area according to of the present invention;
Fig. 2 is a main TV structure sketch map of breaking the tail anchor clamps off with the fingers and thumb of opening big nozzle ring throat opening area according to of the present invention;
Fig. 3 is the cross-sectional schematic of the A-A among Fig. 2;
Fig. 4 is according to turbine nozzle vane structural representation of the present invention; And
Fig. 5 is a structural representation of breaking the tail instrument off with the fingers and thumb according to of the present invention.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment to specify the present invention.
Shown in Fig. 1 to 3; According to of the present invention a kind of turn down the nozzle ring throat opening area break the tail anchor clamps off with the fingers and thumb; Comprise leaf basin positioner 21 and the blade back pressing device 22 that is oppositely arranged with leaf basin positioner 21, form the blade draw-in groove 23 of clip turbine nozzle vane 50 between leaf basin positioner 21 and the blade back pressing device 22.Through leaf basin positioner 21 and blade back pressing device 22 are set; When turbine nozzle vane 50 is placed in the blade draw-in groove 23 between the two; The leaf basin location of 21 pairs of turbine nozzle vanes 50 of leaf basin positioner, blade back pressing device 22 acts on the blade back, thereby makes in the blade trailing edge adjustment process stressed even; Prevent unbalance stress effectively and cause being out of shape inhomogeneous, occur that stress is concentrated and produce the problem of residual stress.
Shown in Fig. 2 to 4, leaf basin positioner 21 have the leaf basin trailing edge 52 that withstands turbine nozzle vane 50 near the inner flow passage side first flange 21a with withstand the second flange 21b of the leaf basin trailing edge 52 of turbine nozzle vane 50 near the outer flow passage side; Blade back pressing device 22 acts on the blade back trailing edge 51 of turbine nozzle vane 50.Through the inside and outside flow passage side that leaf that the first flange 21a and second flange withstand turbine nozzle vane 50 respectively bumps trailing edge 52 is set; Thereby make the middle part of blade built on stilts; When blade back pressing device 22 acts on the blade back place of the built on stilts part in middle part; Just can make blade to the direction distortion that turns down the nozzle ring throat opening area, thereby turn down the nozzle ring throat opening area.
As shown in Figure 3, for the time turn down in the process of nozzle ring throat opening area, blade along its molded lines direction stressed evenly, leaf basin positioner 21 is consistent with the leaf basin trailing edge molded lines of turbine nozzle vane 50 near the first end face 21c of blade back pressing device 22.Blade back pressing device 22 is consistent with the blade back trailing edge molded lines of turbine nozzle vane 50 near the second end face 22a of leaf basin positioner 21.It is consistent with the molded lines of leaf basin to be that leaf basin positioner 21 acts on the bus of the end face on the leaf basin; It is consistent with the molded lines of blade back that blade back pressing device 22 acts on the bus of the end face on the blade back; Thereby make the first flange 21a and the second flange 21b reliable action inside and outside flow passage side at the leaf basin; Blade back pressing device 22 reliable action make the various piece of blade all receive the power effect of identical size, thereby make the various piece homogeneous deformation of blade being maked somebody a mere figurehead on the blade back of part.The width of leaf basin positioner 21 is less than the width of blade passage; The width d of blade back pressing device 22 is less than the width D of leaf basin positioner 21; Thereby guarantee that blade back pressing device 22 can only act on blade by on the built on stilts part of leaf basin positioner 21, thereby make deformable blade.
Preferably; The edge that is arranged in the open side of blade draw-in groove 23 for anti-uppermost leaf basin positioner 21 and blade back pressing device 22 scratches the surface of turbine nozzle vane 50 in the process that turns down the guider throat opening area; Make above-mentioned two edges have fillet, promptly the two edges rounding is handled.
Preferably, like Fig. 3 and shown in Figure 4, the chord length of turbine nozzle vane 50 is L, and the degree of depth of blade draw-in groove 23 is L1, wherein, and 0.25L≤L1≤0.38L.More preferably, the degree of depth L1 of blade draw-in groove 23 is about 1/3rd of turbine nozzle vane 50 chord length L, can make the stator blade distortion so effectively, thereby turn down the nozzle ring throat opening area.
As shown in Figure 5; The present invention also provides a kind to break the tail instrument off with the fingers and thumb; Comprise fixed muffle 10; First end of fixed muffle 10 be provided with aforesaid turn down the nozzle ring throat opening area break tail anchor clamps 20 off with the fingers and thumb, the leaf basin positioner 21 of breaking tail anchor clamps 20 off with the fingers and thumb that turns down the nozzle ring throat opening area is fixedly installed on first end of fixed muffle 10, blade back pressing device 22 relative leaf basin positioners 21 are arranged on the fixed muffle 10 movably; Second end of fixed muffle 10 is provided with and drives blade back pressing device 22 relative to rotary mechanism 30 that leaf basin positioner 21 moves.When turbine nozzle vane 50 places blade draw-in groove 23; Rotate rotary mechanism 30; Just can drive 22 relative leaf basin positioner 21 motions of blade back pressing device; Blade back pressing device 22 produces pushing force and acts on turbine nozzle vane 50 blade back trailing edge places, the direction generation deformation that turbine nozzle vane 50 trailing edges are turned down to throat opening area, thus reach the purpose that turns down the nozzle ring throat opening area.
Fixed muffle 10 is provided with guide rail, and blade back pressing device 22 is arranged in the guide rail.Thereby the free degree of other directions of restriction blade back pressing device 22 makes blade back pressing device 22 leaf basin positioner 21 translations relatively, and guide rail is set, and can make 10 motions of blade back pressing device 22 relative fixed sleeves more flexible.
Preferably, as shown in Figure 5, also be provided with the digital displacement measurement mechanism 40 of measuring and showing the amount of movement of blade back pressing device 22 relative leaf basin positioners 21 on the fixed muffle 10.Thereby when breaking the tail operation off with the fingers and thumb, can accurately control stator blade trailing edge deflection, prevent the problem of being out of shape transition and needing to adjust repeatedly according to breaking tail clamp amount off with the fingers and thumb.
From above description, can find out that the above embodiments of the present invention have realized following technique effect:
Turn down breaking the tail anchor clamps off with the fingers and thumb and having its tail instrument of breaking off with the fingers and thumb of nozzle ring throat opening area according to of the present invention; Through leaf basin positioner and blade back pressing device are set; When turbine nozzle vane is placed in the blade draw-in groove between the two; Leaf basin positioner is to the leaf basin location of turbine nozzle vane, and the blade back pressing device acts on the blade back, thereby makes in the blade trailing edge adjustment process stressed even; Prevent unbalance stress effectively and cause being out of shape inhomogeneous, occur that stress is concentrated and produce the problem of residual stress.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
- One kind turn down the nozzle ring throat opening area break the tail anchor clamps off with the fingers and thumb, it is characterized in that,Comprise leaf basin positioner (21) and the blade back pressing device (22) that is oppositely arranged with said leaf basin positioner (21), form the blade draw-in groove (23) of clip turbine nozzle vane (50) between said leaf basin positioner (21) and the said blade back pressing device (22).
- 2. according to claim 1 turn down the nozzle ring throat opening area break the tail anchor clamps off with the fingers and thumb, it is characterized in that,Said leaf basin positioner (21) has the leaf basin trailing edge (52) that withstands said turbine nozzle vane (50) near first flange (21a) of inner flow passage side with withstand second flange (21b) of the leaf basin trailing edge (52) of said turbine nozzle vane (50) near the outer flow passage side;Said blade back pressing device (22) acts on the blade back trailing edge (51) of said turbine nozzle vane (50).
- 3. according to claim 1 turn down the nozzle ring throat opening area break the tail anchor clamps off with the fingers and thumb, it is characterized in that,The chord length of said turbine nozzle vane (50) is L, and the degree of depth of said blade draw-in groove (23) is L1, wherein, and 0.25L≤L1≤0.38L.
- 4. according to claim 1 turn down the nozzle ring throat opening area break the tail anchor clamps off with the fingers and thumb, it is characterized in that,The width (d) of said blade back pressing device (22) is less than the width (D) of said leaf basin positioner (21).
- 5. according to claim 1 turn down the nozzle ring throat opening area break the tail anchor clamps off with the fingers and thumb, it is characterized in that,Said leaf basin positioner (21) and said blade back pressing device (22) have fillet (c) near the edge of the open side of said blade draw-in groove (23).
- 6. according to claim 1 turn down the nozzle ring throat opening area break the tail anchor clamps off with the fingers and thumb, it is characterized in that,Said leaf basin positioner (21) is consistent with the leaf basin trailing edge molded lines of said turbine nozzle vane (50) near the bus of first end face (21c) of said blade back pressing device (22).
- 7. according to claim 1 turn down the nozzle ring throat opening area break the tail anchor clamps off with the fingers and thumb, it is characterized in that,Said blade back pressing device (22) is consistent with the blade back trailing edge molded lines of turbine nozzle vane (50) near the bus of second end face (22a) of said leaf basin positioner (21).
- 8. break the tail instrument off with the fingers and thumb for one kind, it is characterized in that,Comprise fixed muffle (10), first end of said fixed muffle (10) be provided with in the claim 1 to 7 each described turn down the nozzle ring throat opening area break tail anchor clamps (20) off with the fingers and thumb;The said leaf basin positioner (21) of breaking tail anchor clamps (20) off with the fingers and thumb that turns down the nozzle ring throat opening area is fixedly installed on first end of said fixed muffle (10), and said blade back pressing device (22) said relatively leaf basin positioner (21) is arranged on the said fixed muffle (10) movably;Second end of said fixed muffle (10) is provided with and drives said blade back pressing device (22) relative to rotary mechanism (30) that said leaf basin positioner (21) moves.
- 9. the tail instrument of breaking off with the fingers and thumb according to claim 8 is characterized in that,Said fixed muffle (10) is provided with guide rail, and said blade back pressing device (22) is arranged in the said guide rail.
- 10. the tail instrument of breaking off with the fingers and thumb according to claim 8 is characterized in that,Also be provided with the digital displacement measurement mechanism (40) of measuring and showing said blade back pressing device (22) said relatively leaf basin positioner (21) amount of movement on the said fixed muffle (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210322054.0A CN102825565B (en) | 2012-09-03 | 2012-09-03 | Tail breaking fixture for reducing throat area of turbine guide device and tail breaking tool with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210322054.0A CN102825565B (en) | 2012-09-03 | 2012-09-03 | Tail breaking fixture for reducing throat area of turbine guide device and tail breaking tool with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102825565A true CN102825565A (en) | 2012-12-19 |
| CN102825565B CN102825565B (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210322054.0A Active CN102825565B (en) | 2012-09-03 | 2012-09-03 | Tail breaking fixture for reducing throat area of turbine guide device and tail breaking tool with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102825565B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856024A (en) * | 2016-01-26 | 2016-08-17 | 北京航空航天大学 | High-precision polishing platform and polishing method for throat portion of turbine guiding device |
| CN109129250A (en) * | 2018-10-18 | 2019-01-04 | 北京动力机械研究所 | A kind of turbogenerator guider negotiability adjusting tooling |
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| GB2166070A (en) * | 1984-10-27 | 1986-04-30 | Hauni Werke Koerber & Co Kg | Cast fixture for composite workpieces and method and apparatus for making and breaking up the fixture |
| GB9312180D0 (en) * | 1993-06-12 | 1993-07-28 | Rolls Royce Plc | A mechanical hand |
| CA2131850A1 (en) * | 1993-09-16 | 1995-03-17 | Jean-Philippe Arnau | Device for clamping a part to be worked and application to the machining of a turbine engine blade by electrochemistry |
| US6267364B1 (en) * | 1999-07-19 | 2001-07-31 | Xuesong Zhang | Magnetorheological fluids workpiece holding apparatus and method |
| CN201361839Y (en) * | 2009-03-17 | 2009-12-16 | 梁伟 | Quick adjusting wrench |
| CN102357813A (en) * | 2011-09-09 | 2012-02-22 | 山东大学 | Fixture for processing and detecting blade of aircraft engine |
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2012
- 2012-09-03 CN CN201210322054.0A patent/CN102825565B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2166070A (en) * | 1984-10-27 | 1986-04-30 | Hauni Werke Koerber & Co Kg | Cast fixture for composite workpieces and method and apparatus for making and breaking up the fixture |
| GB9312180D0 (en) * | 1993-06-12 | 1993-07-28 | Rolls Royce Plc | A mechanical hand |
| GB2278825A (en) * | 1993-06-12 | 1994-12-14 | Rolls Royce Plc | Gripper. |
| CA2131850A1 (en) * | 1993-09-16 | 1995-03-17 | Jean-Philippe Arnau | Device for clamping a part to be worked and application to the machining of a turbine engine blade by electrochemistry |
| US6267364B1 (en) * | 1999-07-19 | 2001-07-31 | Xuesong Zhang | Magnetorheological fluids workpiece holding apparatus and method |
| CN201361839Y (en) * | 2009-03-17 | 2009-12-16 | 梁伟 | Quick adjusting wrench |
| CN102357813A (en) * | 2011-09-09 | 2012-02-22 | 山东大学 | Fixture for processing and detecting blade of aircraft engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856024A (en) * | 2016-01-26 | 2016-08-17 | 北京航空航天大学 | High-precision polishing platform and polishing method for throat portion of turbine guiding device |
| CN109129250A (en) * | 2018-10-18 | 2019-01-04 | 北京动力机械研究所 | A kind of turbogenerator guider negotiability adjusting tooling |
| CN109129250B (en) * | 2018-10-18 | 2020-05-19 | 北京动力机械研究所 | Turbine engine director circulation capacity adjusts frock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102825565B (en) | 2014-12-24 |
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