CN204019299U - Engine rotor blade profile prosthetic device - Google Patents
Engine rotor blade profile prosthetic device Download PDFInfo
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- CN204019299U CN204019299U CN201420433282.XU CN201420433282U CN204019299U CN 204019299 U CN204019299 U CN 204019299U CN 201420433282 U CN201420433282 U CN 201420433282U CN 204019299 U CN204019299 U CN 204019299U
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- engine rotor
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Abstract
Disclosed in the utility model, a kind of engine rotor blade profile prosthetic device, comprises the feeler mechanism being fixed on seat board (7).Described feeler mechanism comprise connect firmly the blade clamp system (10) at stencil master rotating disk (9) sector small end center, to be distributed in isosceles triangle the isosceles bearing group (5) in guide rail (11) guide-track groove (27), the spacing column (31) being separately fixed at track base (27) longitudinal two ends and spacing column (31) stretch into stencil master rotating disk (9) greatly the fan-shaped thickness of end to the trimming bolt (28) of rectangle tongue-and-groove.Utilize the utility model to repair the multiple cost of engine rotor blade profile low, efficiency is high, can reduce blade repair scrappage, reduce labour intensity.Use the utility model that the blade half Precision Machining time can be made by original 90 ~ 120min, foreshorten to 5 ~ 10min; The refine time foreshortens to 10 ~ 15min by 50 ~ 60min; Qualification rate is promoted to more than 95% by original 60%.
Description
Technical field
The utility model relates to a kind of prosthetic device of aero-engine compressor rotor blade tip spreading profile.
Background technology
Aero-engine high-pressure compressor rotor blade up to more than 12000 turns rotating speeds per minute, under the effect of centrifugal force, vibration and casing distortion, the blade tip of whole grade blade is short by casing undercoating mill, causes a large amount of blade to be scrapped because of dimension overproof.Due to compressor rotor blade leaf basin and blade back any point, section thickness is all not identical, there is wall thickness variation between same grade blade individuality, and blade profile space compound curved surface is complicated, and the profile of blade recovers extremely difficult.What generally adopt at present is change new product blade, but the purchase cost of new product blade is high, and procurement cycle is difficult to ensure.Or adopt extraordinary technique for overlaying to carry out spreading to by the short blade of mill, form built-up welding region in spreading part and carry out the reparation of manufacture again that profile recovers to realize scrapping blade.Need to recover its original geometrical morphology, to meet aerodynamic demands after vanes blade tip spreading or school shape.When profile is recovered, location and machining path choose difficulty, and the technological means usually adopted has numerical control polishing and manual grinding two class.Numerical control polishing is main by multi-shaft interlocked abrasive belt grinding machine, repaiies type by program software control realization blade face.The method precision is high, efficiency fast, but it is large to equipment degree of dependence, and cost drops into high, and numerical control program writes complexity, and common people are difficult to skilled grasp.Manual grinding is with low cost because of it, and equipment is simply widely used in aircraft engine maintenance field.But the method requires high to bench skill, labour intensity is large, and the polishing cycle is long, and polishing precision is difficult to control, and bruting process very easily injures matrix material, causes blade secondary to scrap, and when spreading is repaired, single piece vanes is slightly polished also needs 90 ~ 120min.Refine 50 ~ 60min, repairing efficiency is extremely low.
Compressor rotor blade belongs to aero-engine vitals, and manufacturing process is complicated, cost is high, and Service Environment badly belongs to easy waste product.Adopting specific aim device to realize blade face to recover, is reduce the effective way of scrapping.Also be improve grinding efficiency simultaneously, reduce labour intensity effective measures.
Summary of the invention
Utility model object of the present utility model has problems for above-mentioned prior art, there is provided a kind of rehabilitation cost low, efficiency is high, can reduce blade repair scrappage, reduce labour intensity, improves the blade profile restoration methods and device thereof of repairing working (machining) efficiency and control accuracy.
The utility model solves the technical solution that its technical problem adopts, a kind of engine rotor blade profile prosthetic device, comprise the feeler mechanism being fixed on seat board 7, it is characterized in that: described feeler mechanism comprise connect firmly the blade clamp system 10 at stencil master rotating disk 9 sector small end center, to be distributed in isosceles triangle the isosceles bearing group 5 in guide rail 11 guide-track groove 27, the spacing column 31 being separately fixed at the longitudinal two ends of track base 27 and spacing column 31 stretch into stencil master rotating disk 9 greatly the fan-shaped thickness of end to the trimming bolt 28 of rectangle tongue-and-groove.
The utility model has following beneficial effect compared to prior art.
The utility model utilizes profile modeling, amplifies reconditioning track, adopts the profile copy grinding device of blade and blade basin, blade back, and carry out profiling reparation according to amplifying rule blade track to compressor blade profile, cost of manufacture is cheap, simple to operate.Controlling with the use of realizing the micron order that cutter head is elevated by adjusting nut and amesdial, makes up bench skill level not enough; Do standard blade face orbiting motion by feeler mechanism band moving vane, improve control accuracy; By track base, reduce operator's labour intensity and working (machining) efficiency.Experimental data shows, uses the utility model that the blade half Precision Machining time can be made by original 90 ~ 120min, foreshortens to 5 ~ 10min; The refine time foreshortens to 10 ~ 15min by 50 ~ 60min; Qualification rate is promoted to more than 95% by original 60%.Adopt the profile copy grinding fixture of blade and blade basin, blade back, improve production efficiency, improve the stability of product quality, make engine blade manufacture again repair supportability wait until effective lifting, solve blade of aviation engine again manufacturing batch repair the matter of great urgency.
Accompanying drawing explanation
Fig. 1 is engine rotor blade cross-sectional morphology schematic diagram.
Fig. 2 is Fig. 1 leaf basin profile modeling sharpening principle schematic.
Fig. 3 is the main-body structure schematic diagram of the prosthetic device of the utility model engine rotor blade profile.
Fig. 4 is Fig. 3 rearview.
Fig. 5 is the embodiment schematic diagram of the utility model using state.
Fig. 6 is the sectional view of the blade clamp system of Fig. 3.
Fig. 7 is the front view of Fig. 5 cutter head elevating mechanism.
In figure: 1 leaf basin, 2 blade backs, 3 pneumatic grinding heads, 4 rule blades, 5 isosceles bearing group, 6 forming movement tracks, 7 bindiny mechanisms, 8 cutter head elevating mechanisms, 9 stencil master rotating disks, 10 blade clamp systems, 11 guide rails, 12 blade fastening screws, 13 alignment pins, 14 dovetail grooves, 15T clevis head, 16 push rods, 17 back-moving springs, 18 limiting plates, 19 screw rods, 20 risers, lifting slider on 21,22 times lifting sliders, 23 screws, 24 springs, 25 back tightening nuts, 26 tie down screws, 27 guide-track grooves, 28 trimming bolts, 29 track bases, 30 pendulum grooves, 31 spacing columns.
Specific embodiment mode
Consult Fig. 1-Fig. 5.Engine rotor blade profile prosthetic device is primarily of compositions such as bindiny mechanism, feeler mechanism, guide rail controlling organization, vane clamping mechanism, cutter head elevating mechanism, cutter head and scales.Illustrate for the polishing of leaf basin below, blade back polishing is similar.Compressor rotor blade leaf basin 1 any point thickness is all not identical, and blade tip forms to blade root by different cross section is stacking, and each cross section is by the pattern of different coordinate points line.Described aeroengine rotor blade profile prosthetic device, specifically comprises the steps: that first utilizing three-coordinates measuring machine to make micron order to rule blade 4 measures, and makes blade and blade basin 1 standard polishing track according to measurement parameter.Utilize profile modeling, track of standard being polished amplifies through profiling, can obtain the forming movement track 6 of stencil master rotating disk 9 reconditioning.With bearing and the centre bearing support and control stencil master rotating disk 9 forming movement track 6 of two center axis of symmetry, when external force drives the stencil master rotating disk 9 on copying device to move, stencil master rotating disk 9 is by being positioned at the isosceles bearing group 5 of arc chute axis above its forming movement track 6, cycloid motion is done by reconditioning track between two spring bearings, the blade be fixed on blade clamp system 10 does opposing oscillatory with pneumatic grinding head 3 thereupon and moves, and realizes polishing to the profiling of blade and blade basin 1.
Consult Fig. 5, Fig. 6.The prosthetic device of engine rotor blade profile comprises the feeler mechanism being fixed on seat board 7, also comprise cutter head elevating mechanism 8, wherein, feeler mechanism comprise connect firmly the blade clamp system 10 at stencil master rotating disk 9 sector small end center, to be distributed in two bearings on guide rail 11 with isosceles triangle and be arranged in the isosceles bearing group 5 of centre bearing composition of guide-track groove 27, the spacing column 31 being separately fixed at the longitudinal two ends of guide rail 11 and spacing column 31 stretch into stencil master rotating disk 9 greatly the fan-shaped thickness of end to the trimming bolt 28 of rectangle tongue-and-groove.Blade clamp system 10 is comprised blade fastening screw 12 and the push rod 16 of back-moving spring 17 is housed by the center stepped hole adapter sleeve of T-shaped chuck 15, its Leaf fastening screw 12 tightens compression push rod 16, the blade tenon to be repaired be placed in T-shaped chuck 15 axle head dovetail groove 14 is clamped in dovetail groove 14 by alignment pin 13 by push rod 16, completes the centralized positioning to blade.Feeler mechanism connects firmly on the plate body of bindiny mechanism 7 by track base 29, blade clamp system 10 is connected on stencil master rotating disk 9, when external force drives the stencil master rotating disk 9 on copying device to move, stencil master rotating disk 9 by it put groove 30 centre bearing 5 along do guide rail 11 swing back and forth time, blade to be repaired is also driven thereupon and does cycloid motion back and forth, and movement locus conforms to rule blade movement locus just.
Consult Fig. 7.Cutter head elevating mechanism 8 comprises the Z-shaped riser 20 be fixed on by screw in bindiny mechanism 7, Z-shaped riser 20 is symmetrical in screw rod 19 both sides, limiting plate 18 is fixedly connected with between the Z-shaped riser 20 in both sides, slide rail and upper lifting slider 21, lower lifting slider 22 in slide rail motion is shaped with inside Z-shaped riser 20, screw rod 19 connects firmly lower lifting slider 22 by back tightening nut 25, limiting plate 18 screw screw and spring 24, and pneumatic grinding head 3 is installed between lifting slider 21, lower lifting slider 22V shape groove.Pneumatic grinding head 3 is clamped between the V-type groove of lifting slider 21, lower lifting slider 22, and after blade tip polishing width adjustment cutter head elongation, upper and lower V-block is locked by tightening screw 23, completes the fixed clamp of pneumatic grinding head.Before polishing starts, pneumatic grinding head 3 is positioned at above blade shown in Fig. 2.During polishing, turn back tightening nut 25, drive screw rod 19 Compress Spring 24, lifting slider 21, lower lifting slider 22 is pulled to move down in Z-shaped riser 20, pneumatic grinding head 3 also realizes the descending motion in vertical direction thereupon, close to the blade to be repaired on prosthetic device, decline displacement, by being placed in the amesdial instruction on upper lifting slider 21 top, realizes 0.001mm precision controlling.When grinding head 3 starts to cut blade to be repaired, screw that tie down screw 26 prevents lifting slider 21, lower lifting slider 22 slides up and down in riser 20, swing stencil master rotating disk 9, now cutter head starts to polish to blade.When grinding head 3 can not cut blade, unscrew tie down screw 26, turn back tightening nut 25, grinding head 3 declines again, tie down screw 26, drives stencil master rotating disk 9 to swing back and forth, and restarts polishing blade and blade basin, completes blade second time and repaiies type process.And so forth repeatedly after, can realize blade primary morphology recover.Opposite direction turn back tightening nut 25 after the type of repairing completes, spring 24 promotes upper lifting slider 21, lower lifting slider 22 moves upward, and impels grinding head 3 return initial position.Unscrew blade and hold out against blade fastening screw 12, take off blade, complete whole leaf basin reconditioning process.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within principle of the present utility model any amendment, equivalent to replace and improvement etc., or, all should be included within protection domain of the present utility model.
Claims (10)
1. an engine rotor blade profile prosthetic device, comprise the feeler mechanism being fixed on seat board (7), it is characterized in that: described feeler mechanism comprises the blade clamp system (10) connected firmly at stencil master rotating disk (9) sector small end center, the isosceles bearing group (5) in guide rail (11) guide-track groove (27) is distributed in isosceles triangle, be separately fixed at the spacing column (31) at track base (27) longitudinal two ends and spacing column (31) stretch into stencil master rotating disk (9) greatly the fan-shaped thickness of end to the trimming bolt (28) of rectangle tongue-and-groove.
2. engine rotor blade profile prosthetic device as claimed in claim 1, it is characterized in that: stencil master rotating disk (9), by being positioned at its forming movement track (6) top arc chute axis centre bearing, does cycloid motion by reconditioning track between two spring bearings.
3. engine rotor blade profile prosthetic device as claimed in claim 1, is characterized in that: the bearing of two center axis of symmetry and centre bearing support and control stencil master rotating disk (9) forming movement track (6).
4. engine rotor blade profile prosthetic device as claimed in claim 1, it is characterized in that: blade clamp system (10) is comprised blade fastening screw (12) and the push rod (16) of back-moving spring (17) is housed by the center stepped hole adapter sleeve of T-shaped chuck (15), its Leaf fastening screw (12) tightens compression push rod (16), the blade tenon to be repaired be placed in T-shaped chuck (15) axle head dovetail groove (14) is clamped in dovetail groove (14) by alignment pin (13) by push rod (16), complete the centralized positioning to blade.
5. engine rotor blade profile prosthetic device as claimed in claim 1, is characterized in that: the prosthetic device of described engine rotor blade profile also comprises cutter head elevating mechanism (8).
6. engine rotor blade profile prosthetic device as claimed in claim 5, it is characterized in that: described cutter head elevating mechanism (8) comprises the Z-shaped riser (20) be fixed on by screw in bindiny mechanism (7), Z-shaped riser (20) is symmetrical in screw rod (19) both sides, limiting plate (18) is fixedly connected with between the Z-shaped riser in both sides (20), Z-shaped riser (20) inner side is shaped with slide rail and the upper lifting slider (21) in slide rail motion, lower lifting slider (22), screw rod (19) is by back tightening nut (25), limiting plate (18) screw screw and spring (24) connect firmly lower lifting slider (22), pneumatic grinding head (3) is installed on lifting slider (21), between lower lifting slider (22) V-shaped groove.
7. engine rotor blade profile prosthetic device as claimed in claim 6, it is characterized in that: during polishing, turn back tightening nut (25), drive screw rod (19) Compress Spring (24), upper and lower V-block is pulled to move down in Z-shaped riser (20), pneumatic grinding head (3) also realizes the descending motion in vertical direction thereupon, decline displacement, by being placed in the amesdial instruction on upper vee-block (21) top, realizes 0.001mm precision controlling.
8. engine rotor blade profile prosthetic device as claimed in claim 7, it is characterized in that: when grinding head (3) starts to cut blade to be repaired, screw that tie down screw (26) prevents lifting slider (21), lower lifting slider (22) slides up and down in riser (20), swing stencil master (9), now cutter head starts to polish to blade.
9. engine rotor blade profile prosthetic device as claimed in claim 1, grinding head (3) it is characterized in that: when can not cut blade, unscrew tie down screw (26), turn back tightening nut (25), grinding head (3) declines again, tie down screw (26), stencil master (9) is driven to swing back and forth, restart polishing blade and blade basin, complete blade second time and repair type process, and so forth repeatedly after.
10. engine rotor blade profile prosthetic device as claimed in claim 9, it is characterized in that: opposite direction turn back tightening nut (25) after the type of repairing completes, in spring (24) promotion, lifting slider (21), lower lifting slider (22) move upward, and impel grinding head (3) return initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433282.XU CN204019299U (en) | 2014-08-01 | 2014-08-01 | Engine rotor blade profile prosthetic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433282.XU CN204019299U (en) | 2014-08-01 | 2014-08-01 | Engine rotor blade profile prosthetic device |
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| Publication Number | Publication Date |
|---|---|
| CN204019299U true CN204019299U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420433282.XU Active CN204019299U (en) | 2014-08-01 | 2014-08-01 | Engine rotor blade profile prosthetic device |
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| CN (1) | CN204019299U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105013867A (en) * | 2015-07-17 | 2015-11-04 | 西安航空动力股份有限公司 | Clamping device for calibration of precisely-forged blade |
| CN106141562A (en) * | 2016-06-23 | 2016-11-23 | 中国人民解放军第五七九工厂 | The restorative procedure of profile and prosthetic device thereof in the cellular embedded block of engine inner wall |
| CN113334174A (en) * | 2021-06-17 | 2021-09-03 | 中国人民解放军第五七一九工厂 | Supporting and fixing device for correcting rotation speed swing of aircraft engine |
-
2014
- 2014-08-01 CN CN201420433282.XU patent/CN204019299U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105013867A (en) * | 2015-07-17 | 2015-11-04 | 西安航空动力股份有限公司 | Clamping device for calibration of precisely-forged blade |
| CN106141562A (en) * | 2016-06-23 | 2016-11-23 | 中国人民解放军第五七九工厂 | The restorative procedure of profile and prosthetic device thereof in the cellular embedded block of engine inner wall |
| CN113334174A (en) * | 2021-06-17 | 2021-09-03 | 中国人民解放军第五七一九工厂 | Supporting and fixing device for correcting rotation speed swing of aircraft engine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |