CN116255211A - Tool for directly decomposing split sections of outer culvert casing in whole machine state of turbofan engine - Google Patents
Tool for directly decomposing split sections of outer culvert casing in whole machine state of turbofan engine Download PDFInfo
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- CN116255211A CN116255211A CN202310161698.4A CN202310161698A CN116255211A CN 116255211 A CN116255211 A CN 116255211A CN 202310161698 A CN202310161698 A CN 202310161698A CN 116255211 A CN116255211 A CN 116255211A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
- F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of aeroengines, and discloses a tool for directly decomposing split sections of an outer culvert casing in the whole state of a turbofan engine, which comprises a base, wherein a supporting seat and a supporting column are arranged on the base; the number of the support columns is two, and the support columns are respectively arranged at two sides of the whole ring section; bearing pins capable of fixing the auxiliary mounting sections of the whole-ring-section reinforcing ring are respectively arranged on the two support columns; a C-shaped frame is arranged between the two support columns; the C-shaped frame is provided with a bolt hole, and a force transmission pin capable of limiting the reinforcing ring is inserted in the bolt hole. According to the invention, the force transmission pin is inserted into the bolt hole to further limit and fix the reinforcing ring, so that the support and fixation of the outer ring casing of the turbofan engine can be realized, the axial and horizontal constraint of the whole ring section of the engine can be realized, the axial deformation of the casing caused by the broken force transmission path of the engine can be reduced when the split section of the external culvert casing is directly decomposed in the whole engine state, and the requirements of direct decomposition and reinstallation of the split section of the external culvert casing in the whole engine state are met.
Description
Technical Field
The invention relates to the technical field of aeroengines, and discloses a tool for directly decomposing split sections of an external culvert casing in the whole state of a turbofan engine.
Background
During a scientific research bench test of a turbofan engine, the technical and quality problems of oil leakage of an inclusion pipeline, falling into excessive materials, abnormal operation of a guide vane adjusting mechanism of a gas compressor, failure of a fuel pipeline lock wire of a main combustion chamber and the like often occur in an inclusion channel, and the problem that the engine is placed down to develop complete machine decomposition and troubleshooting cannot be solved. In order to facilitate the disassembly and assembly of the turbofan engine, the outer culvert casing is generally designed as a split casing section and a whole ring section.
A foreign advanced aeroengine can directly decompose the split section of the outer culvert casing in the whole machine state in the external field. According to analysis, the engine can realize rapid maintenance of components in the outer culvert channel (such as a compressor guide vane adjusting mechanism, a main combustion chamber, an inner culvert pipeline, a compressor casing and the like), can effectively improve the failure discharging efficiency and the test run qualification rate, remarkably improves the maintenance and the guarantee of the outer field of the engine, reduces the repairing times of the engine, and has remarkable effect on reducing the cost of the whole life cycle of the engine.
The aeroengine directly breaks down the split section of the outer culvert casing, damages the original force transmission path of the engine, and ensures that the axial deformation generated by the front and rear mounting edges of the casing under the bending moment generated by the weight of the engine is minimum after the split section of the outer culvert casing is removed, so that the requirement of reinstalling the split section of the casing is met; at present, no product for directly decomposing the split section of the outer culvert casing in the complete machine state exists in China.
Disclosure of Invention
The invention aims to provide a tool for directly decomposing split sections of an external culvert casing in the whole state of a turbofan engine, which can reduce the axial deformation of the casing caused by the damaged force transmission path of the engine and meet the requirements of directly decomposing and reinstalling the split sections of the external culvert casing in the whole state.
In order to achieve the technical effects, the technical scheme adopted by the invention is as follows:
the tool for directly decomposing the split section of the outer culvert casing in the whole state of the turbofan engine comprises a base, wherein a supporting seat for fixing the intermediate casing and a supporting column for fixing the whole ring section of the outer culvert casing are arranged on the base; the number of the support columns is two, and the support columns are respectively arranged at two sides of the whole ring section; bearing pins capable of fixing the auxiliary mounting sections of the whole-ring-section reinforcing ring are respectively arranged on the two support columns; a C-shaped frame is arranged between the two support columns; the C-shaped frame is provided with a bolt hole, and a force transmission pin capable of limiting the reinforcing ring is inserted into the bolt hole.
Further, the bolt hole is a threaded hole, and the force transmission pin is arranged on the C-shaped frame through the threaded hole.
Further, an auxiliary support is arranged on the reinforcing ring at a position corresponding to the force transmission pin, and a bolt hole which can be fixed with the mounting edge of the reinforcing ring is arranged on the auxiliary support; the auxiliary support is provided with a bearing mounting seat at a position corresponding to the force transmission pin, a joint bearing is arranged in the bearing mounting seat, the joint bearing is provided with a jack at a position corresponding to the force transmission pin, and the jack is used for inserting the end, far away from the C-shaped frame, of the force transmission pin.
Further, each support column is provided with a fixed seat, and the fixed seats are rotationally connected with a support pressing plate through a pin shaft; two ends of the C-shaped frame are respectively fixed on the two support pressing plates; the fixing seat and the support pressing plate are fixed on one surface far away from the pin shaft through the ball stud and the compression nut.
Further, a mounting hole is further formed between the fixing seat and the support pressing plate, and one end, away from the auxiliary mounting section, of the bearing pin is inserted into the mounting hole.
Further, the bottom of the base is provided with a roller for the base to move.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the force transmission pin is inserted into the bolt hole to further limit and fix the reinforcing ring, so that the support and fixation of the outer ring casing of the turbofan engine can be realized, the axial and horizontal constraint of the whole ring section of the engine can be realized, the axial deformation of the casing caused by the broken force transmission path of the engine can be reduced when the split section of the external culvert casing is directly decomposed in the whole engine state, and the requirements of direct decomposition and reinstallation of the split section of the external culvert casing in the whole engine state are met.
Drawings
Fig. 1 is a schematic diagram of a tooling structure for directly decomposing split sections of an outer culvert casing in a complete machine state of a turbofan engine in an embodiment;
FIG. 2 is a schematic view of the structure of a C-shaped frame in an embodiment;
FIG. 3 is a schematic view of the structure of the auxiliary support in the embodiment;
FIG. 4 is a schematic view showing the assembly of a fixing base and a support platen in an embodiment;
1, a base; 2. an intermediate case; 3. a support base; 4. a whole ring section; 5. a support column; 6. a bearing pin; 7. a C-shaped frame; 8. a force transmission pin; 9. bolt holes; 10. a knuckle bearing; 11. a fixing seat; 12. a pin shaft; 13. a support pressing plate; 14. ball stud; 15. a compression nut; 16. a mounting hole; 17. a roller; 18. and an auxiliary support.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings. It should not be construed that the scope of the above subject matter of the present invention is limited to the following embodiments, and all techniques realized based on the present invention are within the scope of the present invention.
Examples
Referring to fig. 1-4, a tool for directly decomposing split sections of outer culvert casings in the whole state of a turbofan engine comprises a base 1, wherein a supporting seat 3 for fixing an intermediate casing 2 and a supporting column 5 for fixing a whole ring section 4 of the outer culvert casing are arranged on the base 1; the number of the supporting columns 5 is two, and the two supporting columns are respectively arranged at two sides of the whole ring section 4; the two support columns 5 are respectively provided with a bearing pin 6 which can fix the auxiliary installation joint of the reinforcing ring of the whole ring section 4; a C-shaped frame 7 is arranged between the two support columns 5; the C-shaped frame 7 is provided with a bolt hole, and a force transmission pin 8 capable of limiting the reinforcing ring is inserted into the bolt hole.
In this embodiment, the supporting seat 3 can support the intermediate casing 2 of the turbofan engine, the split casing section is between the whole ring section 4 and the intermediate casing 2 section, the auxiliary installation section on the reinforcing ring of the whole ring section 4 is fixed through the bearing pin 6 on the supporting column 5, the pin hole arranged on the C-shaped frame 7 is inserted into the pin hole through the force transmission pin 8 to further limit and fix the reinforcing ring, the support and fixation of the outer ring casing of the turbofan engine can be realized, and meanwhile, the axial and horizontal constraint of the whole ring section 4 of the engine can be realized, so that when the split section of the external culvert casing is directly decomposed under the whole engine state, the axial deformation of the casing caused by the broken force transmission path of the engine is reduced, and the direct split and combined requirement of the external culvert casing under the whole engine state is met.
The bolt hole in this embodiment is the screw hole, pass power round pin 8 and install on C type frame 7 through external screw thread and screw hole cooperation, pass power round pin 8 external screw thread and screw hole cooperation, can realize the control of the elongation of power round pin 8 to the realization is exerted axial and horizontal constraint to the engine.
An auxiliary support 18 is arranged on the reinforcing ring at a position corresponding to the force transmission pin 8, and a bolt hole 9 which can be fixed with the mounting edge of the reinforcing ring is arranged on the auxiliary support 18; the auxiliary support 18 is provided with a bearing mounting seat at a position corresponding to the force transmission pin 8, a joint bearing 10 is arranged in the bearing mounting seat, the joint bearing 10 is provided with an inserting hole at a position corresponding to the force transmission pin 8, and the end of the force transmission pin 8 far away from the C-shaped frame 7 can be inserted into the inserting hole. The function of the knuckle bearing 10 in this embodiment is to facilitate insertion of the force transmission pin 8, and if the slot form without the knuckle bearing 10 is directly adopted, there is a problem that the force transmission pin 8 cannot be inserted into the insertion hole under the condition of misalignment. The design adaptability is good, the force transmission pin 8 can be inserted into the jack, the axial and horizontal limiting functions are achieved, and the problem that the force transmission pin 8 cannot be inserted into the jack to easily cause axial deformation after being decomposed is avoided.
A fixed seat 11 is arranged on each support column 5, and the fixed seats 11 are rotatably connected with a support pressing plate 13 through pin shafts 12; the two ends of the C-shaped frame 7 are respectively fixed on two support pressing plates 13, and the fixed seat 11 and the support pressing plates 13 are fixed on one surface far away from the pin shaft 12 through ball bolts 14 and compression nuts 15. Two ends of the C-shaped frame 7 are fixed with the support pressing plates 13, so that the movable connection of the C-shaped frame 7 and the support column 5 can be realized, when the split section of the outer culvert casing of the turbofan engine needs to be decomposed, the C-shaped frame 7 can be folded first, the outer culvert casing is convenient to install and fix quickly on the support column 5 and the support frame, the C-shaped frame 7 is folded to the upper part of the whole ring section 4 after being installed in place, and the split section is fixed by the force transmission pin 8.
A mounting hole 16 is further formed between the fixing seat 11 and the support pressing plate 13, and one end, away from the auxiliary mounting section, of the bearing pin 6 is inserted into the mounting hole 16. The mounting holes 16 in this embodiment are equivalent to the semi-cylindrical grooves formed on the fixing seat 11 and the support pressing plate 13 respectively, and after the fixing seat 11 and the support pressing plate 13 are fixed by the ball stud 14 and the compression nut 15, the two semi-cylindrical grooves form the mounting holes 16 of the bearing pin 6, so that the bearing pin 6 can be quickly mounted and dismounted while positioning and fixing are achieved.
A roller 17 for moving the base 1 is arranged at the bottom of the base 1. The outer culvert machine casket of being convenient for quick travel, the removal process only need promote base 1 can, labour saving and time saving.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The tool for directly decomposing the split section of the outer culvert casing in the whole state of the turbofan engine is characterized by comprising a base, wherein a supporting seat for fixing an intermediate casing and a supporting column for fixing the whole ring section of the outer culvert casing are arranged on the base; the number of the support columns is two, and the support columns are respectively arranged at two sides of the whole ring section; bearing pins capable of fixing the auxiliary mounting sections of the whole-ring-section reinforcing ring are respectively arranged on the two support columns; a C-shaped frame is arranged between the two support columns; the C-shaped frame is provided with a bolt hole, and a force transmission pin capable of limiting the reinforcing ring is inserted into the bolt hole.
2. The tool for directly decomposing the split section of the outer culvert casing in the whole state of the turbofan engine according to claim 1, wherein the tool is characterized in that: the bolt hole is the screw hole, pass the power round pin and install on C type frame through the screw hole.
3. The tool for directly decomposing the split section of the outer culvert casing in the whole state of the turbofan engine according to claim 1, wherein the tool is characterized in that: an auxiliary support is arranged on the reinforcing ring at a position corresponding to the force transmission pin, and a bolt hole which can be fixed with the mounting edge of the reinforcing ring is arranged on the auxiliary support; the auxiliary support is provided with a bearing mounting seat at a position corresponding to the force transmission pin, a joint bearing is arranged in the bearing mounting seat, the joint bearing is provided with a jack at a position corresponding to the force transmission pin, and the jack is used for inserting the end, far away from the C-shaped frame, of the force transmission pin.
4. The tool for directly decomposing the split section of the outer culvert casing in the whole state of the turbofan engine according to claim 1, wherein the tool is characterized in that: each support column is provided with a fixed seat, and the fixed seats are rotationally connected with a support pressing plate through pin shafts; two ends of the C-shaped frame are respectively fixed on the two support pressing plates; the fixing seat and the support pressing plate are fixed on one surface far away from the pin shaft through the ball stud and the compression nut.
5. The tool for directly decomposing the split section of the outer culvert casing in the whole state of the turbofan engine according to claim 4, wherein the tool is characterized in that: still offered the mounting hole between fixing base and the support clamp plate, the one end that the bearing pin kept away from supplementary installation festival inserts and locates in the mounting hole.
6. The tool for directly decomposing the split section of the outer culvert casing in the whole state of the turbofan engine according to claim 1, wherein the tool is characterized in that: the bottom of the base is provided with a roller for the base to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310161698.4A CN116255211A (en) | 2023-02-24 | 2023-02-24 | Tool for directly decomposing split sections of outer culvert casing in whole machine state of turbofan engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310161698.4A CN116255211A (en) | 2023-02-24 | 2023-02-24 | Tool for directly decomposing split sections of outer culvert casing in whole machine state of turbofan engine |
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| Publication Number | Publication Date |
|---|---|
| CN116255211A true CN116255211A (en) | 2023-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310161698.4A Pending CN116255211A (en) | 2023-02-24 | 2023-02-24 | Tool for directly decomposing split sections of outer culvert casing in whole machine state of turbofan engine |
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| CN (1) | CN116255211A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117869016A (en) * | 2024-03-12 | 2024-04-12 | 中国航发四川燃气涡轮研究院 | Cooling unit for reducing heat conduction of turbine outer ring and analysis method thereof |
-
2023
- 2023-02-24 CN CN202310161698.4A patent/CN116255211A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117869016A (en) * | 2024-03-12 | 2024-04-12 | 中国航发四川燃气涡轮研究院 | Cooling unit for reducing heat conduction of turbine outer ring and analysis method thereof |
| CN117869016B (en) * | 2024-03-12 | 2024-05-17 | 中国航发四川燃气涡轮研究院 | Cooling unit for reducing heat conduction of turbine outer ring and analysis method thereof |
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