CN201650377U - Blade with crest - Google Patents
Blade with crest Download PDFInfo
- Publication number
- CN201650377U CN201650377U CN201020194830XU CN201020194830U CN201650377U CN 201650377 U CN201650377 U CN 201650377U CN 201020194830X U CN201020194830X U CN 201020194830XU CN 201020194830 U CN201020194830 U CN 201020194830U CN 201650377 U CN201650377 U CN 201650377U
- Authority
- CN
- China
- Prior art keywords
- blade
- crest
- weight
- integral shroud
- loss
- Prior art date
- 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 - Lifetime
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to a blade with a crest, comprising a blade and a blade crest. The blade crest is provided with at least two grate gears; a weight reducing groove is arranged between the two grate gears; and a reinforcing rib is arranged between the weight reducing grooves. The blade with the crest has light weight, little centrifugal force, little stress, good seal, wear resistance, good reliability and long service life.
Description
Technical field
The utility model relates to a kind of gas-turbine unit turbine blade, is specifically related to a kind of shrouded blade.
Background technique
In order to prevent the gas leakage of gas-turbine unit turbine rotor blade blade tip, improve turbine performance, reduce the vibration of turbine blade, adopting shrouded blade is one of important measures.Surface of contact between rack saw profile of tooth integral shroud and the casing has enough thickness, and wear-resistant seal is good.But the listrium of this rack saw profile of tooth integral shroud is an equal thickness, has increased the weight of blade, causes the stress of integral shroud and blade to increase, and stress increases infringement blade easily.Attenuate listrium thickness can effectively alleviate listrium weight and stress, and this can influence sealing, reduces the efficient of turbine.
Summary of the invention
The purpose of this utility model be to provide a kind of contact well, in light weight, stress is little, the shrouded blade of good seal.
Shrouded blade of the present utility model comprises blade and integral shroud, it is characterized in that: described integral shroud is provided with at least two castor teeth, is provided with the loss of weight groove between the two castor teeth; Be provided with stiffening rib between the described loss of weight groove.
Shrouded blade of the present utility model is in light weight, centrifugal force is little, stress is little; Good seal, wear-resisting, good reliability, long service life.
Description of drawings
Fig. 1 is structural representation of the present utility model and embodiment 1 figure.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the utility model embodiment 2 a structural representation.
Fig. 4 is the plan view of Fig. 3.
Among the figure: 1, integral shroud, 2, blade, 3, the castor tooth, 4, the loss of weight groove, 5, stiffening rib.
Embodiment
Shown in Fig. 1,2, shrouded blade of the present utility model is made of blade 2 and integral shroud 1.Integral shroud 1 is provided with three castor teeth 3, is provided with loss of weight groove 4 between two castor teeth 3, and the degree of depth of loss of weight groove 4 is 1/2 of integral shroud 1 thickness.
Shown in Fig. 3,4, shrouded blade is made of blade 2 and integral shroud 1.Integral shroud 1 is provided with three castor teeth 3, is provided with stiffening rib 5 being provided with between two castor teeth 3 between two loss of weight grooves, 4, the two loss of weight grooves 4, and the degree of depth of loss of weight groove 4 is 1/2 of integral shroud 1 thickness.
Claims (1)
1. a shrouded blade comprises blade (2) and integral shroud (1), and it is characterized in that: described integral shroud (1) is provided with at least two castor teeth (3), is provided with loss of weight groove (4) between the two castor teeth (3); Be provided with stiffening rib (5) between the described loss of weight groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020194830XU CN201650377U (en) | 2010-05-19 | 2010-05-19 | Blade with crest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020194830XU CN201650377U (en) | 2010-05-19 | 2010-05-19 | Blade with crest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650377U true CN201650377U (en) | 2010-11-24 |
Family
ID=43115612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020194830XU Expired - Lifetime CN201650377U (en) | 2010-05-19 | 2010-05-19 | Blade with crest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650377U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230439A (en) * | 2011-04-07 | 2011-11-02 | 周军伟 | High-efficiency horizontal-axis tidal flow turbine crown blade and designing method thereof |
| CN103184889A (en) * | 2011-12-28 | 2013-07-03 | 中航商用航空发动机有限责任公司 | Turbine rotor blade, rotating assembly and turbine engine |
| CN104454026A (en) * | 2014-11-09 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Zigzag-shroud of aero-engine rotor vane |
| CN105598790A (en) * | 2016-03-16 | 2016-05-25 | 中国航空动力机械研究所 | Method for machining sawtooth-shaped blade crown structure of turbine blade |
| CN109630207A (en) * | 2018-12-10 | 2019-04-16 | 中国航发四川燃气涡轮研究院 | A kind of hollow turbine rotor blade with integral shroud reinforcing rib |
-
2010
- 2010-05-19 CN CN201020194830XU patent/CN201650377U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230439A (en) * | 2011-04-07 | 2011-11-02 | 周军伟 | High-efficiency horizontal-axis tidal flow turbine crown blade and designing method thereof |
| CN103184889A (en) * | 2011-12-28 | 2013-07-03 | 中航商用航空发动机有限责任公司 | Turbine rotor blade, rotating assembly and turbine engine |
| CN104454026A (en) * | 2014-11-09 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Zigzag-shroud of aero-engine rotor vane |
| CN105598790A (en) * | 2016-03-16 | 2016-05-25 | 中国航空动力机械研究所 | Method for machining sawtooth-shaped blade crown structure of turbine blade |
| CN109630207A (en) * | 2018-12-10 | 2019-04-16 | 中国航发四川燃气涡轮研究院 | A kind of hollow turbine rotor blade with integral shroud reinforcing rib |
| CN109630207B (en) * | 2018-12-10 | 2021-07-09 | 中国航发四川燃气涡轮研究院 | Hollow turbine rotor blade with blade shroud reinforcing ribs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |