CN204419272U - A kind of Low Pressure Turbine Rotor outer shroud - Google Patents
A kind of Low Pressure Turbine Rotor outer shroud Download PDFInfo
- Publication number
- CN204419272U CN204419272U CN201520007780.2U CN201520007780U CN204419272U CN 204419272 U CN204419272 U CN 204419272U CN 201520007780 U CN201520007780 U CN 201520007780U CN 204419272 U CN204419272 U CN 204419272U
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- CN
- China
- Prior art keywords
- outer shroud
- pressure turbine
- low pressure
- turbine rotor
- base plate
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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 - Fee Related
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A kind of Low Pressure Turbine Rotor outer shroud, is characterized in that: described Low Pressure Turbine Rotor outer shroud, comprises outer shroud base plate, outer shroud honeycomb, outer shroud plate and axially locating plate; Wherein: outer shroud honeycomb is placed in the inner side of outer shroud base plate; Outer shroud plate is placed in the outside of outer shroud base plate; Axially locating plate is placed in the ear end face of outer shroud base plate; Single Low Pressure Turbine Rotor outer shroud is fan-shaped section structure, and Low Pressure Turbine Rotor outer shroud at different levels is assemblied on low-pressure turbine casing and forms domain structure, forms the seal structure of comb tooth-honeycomb with corresponding Low Pressure Turbine Rotor blade tip.Advantage of the present utility model: structure is simple, number of spare parts is few, technology capability is good, intensity is good, not yielding; Have employed the structure that outer shroud is separated with fixed block, solve outer ring size by spatial constraints, the drawback that lifting surface area is too small.Welding outer shroud block lifting surface area is little, the problems such as it is unreliable to locate, assembling difficulty.
Description
Technical field
The utility model relates to aero-turbine construction applications, particularly a kind of Low Pressure Turbine Rotor outer shroud.
Background technique
The matrix of traditional aeroengine Low Pressure Turbine Rotor outer shroud is welded by polylith metal plate punching part, and front end is welded with the fixed block of wedge shape, is used on low pressure casing, carrying out circumference location to low-pressure turbine guide vane, sees Fig. 6.Although this Low Pressure Turbine Rotor outer shroud has, structure is simple, the feature of lighter in weight, because the technology capability of metal plate punching and welding is poor, often occurs the situation of Low Pressure Turbine Rotor outer shroud assembling difficulty.Just once occurred because outer shroud quality of processing is poor in the commissioning process of motor, and caused guide vane to assemble not in place, and caused guide vane and rotor blade that the situation of mill occurs axially to touch.In addition, due to fixed block be direct soldering in low-pressure turbine outer shroud front end, be subject to physical dimension restriction, it is excessive that fixed block size can not design, and this also causes fixed block lifting surface area less, strength deficiency.In engine test, the fixing incessantly guide vane of locating bump, causes guide vane that circumferential play occurs, has a strong impact on the safety of motor.
Model utility content
The purpose of this utility model is the features such as structure is simple, technology capability is good in order to make it have, and the outer loop mapping of Low Pressure Turbine Rotor that simultaneously can solve original structure is unreliable, and the problem of assembly process process difference, spy provides a kind of Low Pressure Turbine Rotor outer shroud.
The utility model provides a kind of Low Pressure Turbine Rotor outer shroud, it is characterized in that: described Low Pressure Turbine Rotor outer shroud, comprises outer shroud base plate 1, outer shroud honeycomb 2, outer shroud plate 3 and axially locating plate 4;
Wherein: outer shroud honeycomb 2 is placed in the inner side of outer shroud base plate 1; Outer shroud plate 3 is placed in the outside of outer shroud base plate 1; Axially locating plate 4 is placed in the ear end face of outer shroud base plate 1.
Single Low Pressure Turbine Rotor outer shroud is fan-shaped section structure, and Low Pressure Turbine Rotor outer shroud at different levels is assemblied on low-pressure turbine casing and forms domain structure, forms the seal structure of comb tooth-honeycomb with corresponding Low Pressure Turbine Rotor blade tip.
Single Low Pressure Turbine Rotor outer shroud is fan-shaped section structure, and each number of stages is on the engine respectively 19,21,22 and 23.
The structure that Low Pressure Turbine Rotor outer shroud is separated with outer shroud fixed block.
Outer shroud honeycomb 2, outer shroud plate 3 and axially locating plate 4 all adopt the method for soldering to be welded on outer shroud base plate 1.Outer shroud base plate 1 blank is forging, and outer shroud base plate 1 adds part for machine.
Advantage of the present utility model:
Low Pressure Turbine Rotor outer shroud described in the utility model, structure is simple, number of spare parts is few, technology capability is good, intensity is good, not yielding; Have employed the structure that outer shroud is separated with fixed block, solve outer ring size by spatial constraints, the drawback that lifting surface area is too small.Welding outer shroud block lifting surface area is little, the problems such as it is unreliable to locate, assembling difficulty.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 Low Pressure Turbine Rotor outer shroud forward sight structural representation;
Fig. 2 Low Pressure Turbine Rotor outer shroud plan structure schematic diagram;
Fundamental diagram is looked on Fig. 3 Low Pressure Turbine Rotor outer shroud right side;
Fig. 4 Low Pressure Turbine Rotor outer shroud side-looking fundamental diagram;
Fig. 5 Low Pressure Turbine Rotor outer shroud backsight fundamental diagram;
Fig. 6 Low Pressure Turbine Rotor outer shroud and outer shroud fixed block embryonal structure figure; In figure, 5 is sheet metal part, and 6 is fixed block.
Embodiment
Embodiment 1
Present embodiments provide a kind of Low Pressure Turbine Rotor outer shroud, it is characterized in that: described Low Pressure Turbine Rotor outer shroud, comprise outer shroud base plate 1, outer shroud honeycomb 2, outer shroud plate 3 and axially locating plate 4;
Wherein: outer shroud honeycomb 2 is placed in the inner side of outer shroud base plate 1; Outer shroud plate 3 is placed in the outside of outer shroud base plate 1; Axially locating plate 4 is placed in the ear end face of outer shroud base plate 1.
Single Low Pressure Turbine Rotor outer shroud is fan-shaped section structure, and Low Pressure Turbine Rotor outer shroud at different levels is assemblied on low-pressure turbine casing and forms domain structure, forms the seal structure of comb tooth-honeycomb with corresponding Low Pressure Turbine Rotor blade tip.
Single Low Pressure Turbine Rotor outer shroud is fan-shaped section structure, and each number of stages is on the engine respectively 19,21,22 and 23.
The structure that Low Pressure Turbine Rotor outer shroud is separated with outer shroud fixed block.
Outer shroud honeycomb 2, outer shroud plate 3 and axially locating plate 4 all adopt the method for soldering to be welded on outer shroud base plate 1.Outer shroud base plate 1 blank is forging, and outer shroud base plate 1 adds part for machine.
Claims (2)
1. a Low Pressure Turbine Rotor outer shroud, is characterized in that: described Low Pressure Turbine Rotor outer shroud, comprises outer shroud base plate (1), outer shroud honeycomb (2), outer shroud plate (3) and axially locating plate (4);
Wherein: outer shroud honeycomb (2) is placed in the inner side of outer shroud base plate (1); Outer shroud plate (3) is placed in the outside of outer shroud base plate (1); Axially locating plate (4) is placed in the ear end face of outer shroud base plate (1);
Single Low Pressure Turbine Rotor outer shroud is fan-shaped section structure, and Low Pressure Turbine Rotor outer shroud at different levels is assemblied on low-pressure turbine casing and forms domain structure, forms the seal structure of comb tooth-honeycomb with corresponding Low Pressure Turbine Rotor blade tip.
2. according to Low Pressure Turbine Rotor outer ring structure according to claim 1, it is characterized in that: single Low Pressure Turbine Rotor outer shroud is fan-shaped section structure, each number of stages is on the engine respectively 19,21,22 and 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007780.2U CN204419272U (en) | 2015-01-06 | 2015-01-06 | A kind of Low Pressure Turbine Rotor outer shroud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007780.2U CN204419272U (en) | 2015-01-06 | 2015-01-06 | A kind of Low Pressure Turbine Rotor outer shroud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419272U true CN204419272U (en) | 2015-06-24 |
Family
ID=53469654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007780.2U Expired - Fee Related CN204419272U (en) | 2015-01-06 | 2015-01-06 | A kind of Low Pressure Turbine Rotor outer shroud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478945A (en) * | 2015-12-07 | 2016-04-13 | 贵州黎阳航空动力有限公司 | Brazing method for high-temperature alloy assembly of aero-engine |
| CN117703533A (en) * | 2024-02-06 | 2024-03-15 | 中国航发沈阳发动机研究所 | Turbine interstage external flow passage stator piece connection structure |
-
2015
- 2015-01-06 CN CN201520007780.2U patent/CN204419272U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478945A (en) * | 2015-12-07 | 2016-04-13 | 贵州黎阳航空动力有限公司 | Brazing method for high-temperature alloy assembly of aero-engine |
| CN117703533A (en) * | 2024-02-06 | 2024-03-15 | 中国航发沈阳发动机研究所 | Turbine interstage external flow passage stator piece connection structure |
| CN117703533B (en) * | 2024-02-06 | 2024-04-09 | 中国航发沈阳发动机研究所 | Turbine interstage external flow passage stator piece connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20220106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |