CN112326433A - Static blade adjusting mechanism stress-strain test bed considering temperature influence - Google Patents
Static blade adjusting mechanism stress-strain test bed considering temperature influence Download PDFInfo
- Publication number
- CN112326433A CN112326433A CN202011269167.XA CN202011269167A CN112326433A CN 112326433 A CN112326433 A CN 112326433A CN 202011269167 A CN202011269167 A CN 202011269167A CN 112326433 A CN112326433 A CN 112326433A
- Authority
- CN
- China
- Prior art keywords
- strain
- adjusting mechanism
- linear motor
- stress
- blade
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of aero-engine tests and provides a stress-strain test bed of a static blade adjusting mechanism considering temperature influence, which comprises an inner casing, wherein a linear motor installation part is arranged on one side of the top of the inner casing, a linear motor is installed on one side of the top of the linear motor installation part, a rocker is installed at the end part of the linear motor, the rocker is connected with a rotating shaft in a locking mode, the bottom of the rotating shaft is connected with a fixed plate, the bottom of the rotating shaft is rotatably installed in a shaft groove formed in the top of the fixed plate, a main transmission rod is installed at the bottom of the rotating shaft in a locking mode, a connecting rod is installed. According to the invention, the blades are heated by the high-frequency heater, the structure is simple and easy to realize, and the influence of temperature on the strain of the rocker arm structure of the static blade adjusting mechanism can be obtained by comparing the strain values of the rocker arms of the unheated blades.
Description
Technical Field
The invention belongs to the technical field of aero-engine tests, and particularly relates to a stress-strain test bed of a stationary blade adjusting mechanism with consideration of temperature influence
Background
In the field of aeroengines, adjustable stationary blades are stator blades which can change the installation angle of the adjustable stationary blades around a fixed axis, can be used for improving the stable working range of a gas compressor, and are widely applied to aeroengines. The adjusting mechanism is a control mechanism used for changing the angle of the adjustable stationary blade of the compressor. Generally, a common compressor simultaneously has a plurality of stages of adjustable stationary blades, and the temperature of the blades of the high-pressure compressor has a relatively obvious influence on the performance of an adjusting mechanism during operation.
In the adjusting mechanism, the weakest structure is a rocker arm for connecting the linkage ring and the blades, related test research is lacked in the prior art, in addition, in the prior art, the test bed is also circumferentially distributed due to the fact that the adjusting mechanisms are circumferentially distributed, so that the test bed is not beneficial to test testing, and in order to research the stress and strain conditions of various weak links of the static blade adjusting mechanism in motion under the influence of temperature, the stress and strain test bed of the static blade adjusting mechanism considering the influence of temperature is designed.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a stress-strain test bed of a static blade adjusting mechanism considering temperature influence, which adopts multi-cascade moving rings in horizontal distribution, and each cascade moving ring is connected with three blades to rotate.
In order to achieve the purpose, the invention provides the following technical scheme: a stress-strain test bed for a static blade adjusting mechanism considering temperature influence comprises an inner casing, wherein a linear motor mounting part is arranged on one side of the top of the inner casing, a linear motor is mounted on one side of the top of the linear motor mounting part, a rocker is mounted at the end part of the linear motor, the rocker is in locking connection with a rotating shaft, a fixing plate is connected to the bottom of the rotating shaft, the bottom of the rotating shaft is rotatably mounted in a shaft groove formed in the top of the fixing plate, a main transmission rod is mounted at the bottom of the rotating shaft in a locking manner and is L-shaped, a connecting rod is rotatably mounted at the inflection point end of the main transmission rod and is rotatably connected with more than two transmission rods, the middle of each transmission rod is rotatably mounted at the top of the fixing plate, a pull rod is mounted at the bottom of the other end of each transmission rod, the two ends of the blade are respectively arranged on the outer casing and the inner casing, the top of the inner casing is fixedly provided with a support column, and the top of the support column is fixed with the bottom of the fixing plate.
Preferably, bushings are installed at the upper and lower shaft sections of the blade for connecting the outer casing and the inner casing.
Preferably, a high frequency heater is provided outside the blade.
Preferably, a strain gauge is mounted at the top of the rocker arm.
The test method comprises the following steps:
s1, connecting the mainframe box, the strain acquisition card, the strain gauge and the computer together through a transmission line;
s2, attaching the strain gauge to the rocker arm to be tested, and starting the high-frequency heater at the position of the blade corresponding to the position;
s3, starting the linear motor, and acquiring stress strain data and images through the computer;
and S4, changing the sticking position of the strain gauge, testing different stages of stator blade adjusting mechanisms respectively, and comparing the stress strain conditions of all stages of weak links of the stator blade adjusting mechanisms considering the temperature influence.
Compared with the prior art, the invention has the beneficial effects that:
(1) the utility model provides a take temperature influence into account quiet leaf adjustment mechanism stress strain test bench, heats the blade through high frequency heating ware, and simple structure easily realizes, through the rocking arm strain value of contrast not heating the blade, can obtain the temperature to the influence of quiet leaf adjustment mechanism rocking arm structure meeting an emergency.
(2) The utility model provides a take temperature influence's quiet leaf adjustment mechanism stress strain test bench, adjusts the design of structure through whole quiet leaf, simplifies annular link ring, and each grade only gets three blade structure, has simplified the degree of freedom of motion for the structure is more applicable to the experiment.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
fig. 3 is a schematic view of a blade part structure of the present invention.
In the figure: 1 linear motor mounting part; 2, a linear motor; 3, a rocker; 4, a rotating shaft; 5 fixing the plate; 6, connecting rods; 7 a transmission rod; 8, a pull rod; 9 a link ring; 10 rocker arms; 11 blades; 12 support columns; 13 inner casing; 14 a primary drive link; 15 outer casing; 16 large bushings; 17 small bushings; 18 a high-frequency heater; 19 strain gage.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a technical solution: a stress-strain test bed for a static blade adjusting mechanism considering temperature influence comprises an inner casing 13, wherein one side of the top of the inner casing 13 is provided with a linear motor installation part 1, one side of the top of the linear motor installation part 1 is provided with a linear motor 2, the end part of the linear motor 2 is provided with a rocker 3, the rocker 3 is locked and connected with a rotating shaft 4, the bottom of the rotating shaft 4 is connected with a fixed plate 5, the bottom of the rotating shaft 4 is rotatably installed in a shaft groove arranged at the top of the fixed plate 5, the bottom of the rotating shaft 4 is locked and installed with a main transmission rod 14, the other end of the main transmission rod 14 is rotatably installed with a connecting rod 6, the connecting rod 6 is rotatably connected with a plurality of pairs of transmission rods 7, the middle part of the transmission rod 7 is rotatably installed at the top of the fixed plate 5, the bottom of the other end of the transmission rod 7 is, two ends of the blade 11 are respectively installed on an outer casing 15 and an inner casing 13, a supporting column 12 is fixedly installed at the top of the inner casing 13, the top of the supporting column 12 is fixed with the bottom of the fixing plate 5, a large bushing 16 and a small bushing 17 are installed at the upper shaft section and the lower shaft section of the blade 11, a high-frequency heater 18 is arranged outside the blade 11, and a strain gauge 19 is installed at the top of the rocker arm 10.
The stator blade adjusting mechanism is divided into a first stage, a second stage, a third stage and a fourth stage.
The test comprises the following steps: s1, connecting the mainframe box, the strain acquisition card, the strain gauge and the computer together through transmission lines; s2, attaching a strain gauge to a certain rocker arm of the first stage, and starting a high-frequency heater at a blade position corresponding to the strain gauge; s3, starting the linear motor, and acquiring stress-strain data and images through NIMAX software in the computer; and S4, changing the sticking position of the strain gauge, testing the first stage, the second stage, the third stage and the fourth stage respectively, and comparing the stress strain conditions of all stages of weak links of the stator blade adjusting mechanism considering the temperature influence.
Claims (6)
1. A quiet leaf adjustment mechanism stress strain test platform of considering temperature influence includes interior receiver (13), its characterized in that: the automatic transmission device is characterized in that a linear motor mounting part (1) is arranged on one side of the top of the inner casing (13), a linear motor (2) is mounted on one side of the top of the linear motor mounting part (1), a rocker (3) is mounted at the end part of the linear motor (2), the rocker (3) is connected with a rotating shaft (4) in a locking manner, a fixing plate (5) is connected to the bottom of the rotating shaft (4), the bottom of the rotating shaft (4) is rotatably mounted in a shaft groove formed in the top of the fixing plate (5), a main transmission rod (14) is mounted at the bottom of the rotating shaft (4) in a locking manner, the main transmission rod (14) is L-shaped, a connecting rod (6) is rotatably mounted at the inflection point end of the main transmission rod (14), the connecting rod (6) is rotatably connected with more than two transmission rods (7), the middle of, and linkage ring (9) are installed to every pull rod (8) other end ball pivot, and every linkage ring (9) rotate and install rocking arm (10), and every rocking arm (10) other end round hole department installs blade (11), install respectively in outer casket (15) and interior casket (13) at blade (11) both ends, and interior casket (13) top fixed mounting has support column (12), support column (12) top is fixed with fixed plate (5) bottom.
2. The temperature-influence-considered vane adjusting mechanism stress-strain test stand according to claim 1, characterized in that: and bushings are arranged at the upper shaft section and the lower shaft section of the blade (11) and are used for being connected with an outer casing (15) and an inner casing (13).
3. The temperature-influence-considered vane adjusting mechanism stress-strain test stand according to claim 1, characterized in that: the high-frequency heater (18) is arranged outside the blade (11).
4. The temperature-influence-considered vane adjusting mechanism stress-strain test stand according to claim 1, characterized in that: and a strain gauge (19) is arranged at the top of the rocker arm (10).
5. The temperature-influence-considered vane adjusting mechanism stress-strain test stand according to claim 1, characterized in that: each linkage ring (9) correspondingly drives three blades (11).
6. The method for testing the stress-strain test bed of the stationary blade adjusting mechanism considering the temperature influence as set forth in any one of claims 1 to 5, characterized by comprising the steps of:
s1, connecting the mainframe box, the strain acquisition card, the strain gauge and the computer together through a transmission line;
s2, attaching the strain gauge to the rocker arm to be tested, and starting the high-frequency heater at the position of the blade corresponding to the position;
s3, starting the linear motor, and acquiring stress strain data and images through the computer;
and S4, changing the sticking position of the strain gauge, testing different stages of stator blade adjusting mechanisms respectively, and comparing the stress strain conditions of all stages of weak links of the stator blade adjusting mechanisms considering the temperature influence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011269167.XA CN112326433B (en) | 2020-11-13 | 2020-11-13 | Static blade adjusting mechanism stress-strain test bed considering temperature influence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011269167.XA CN112326433B (en) | 2020-11-13 | 2020-11-13 | Static blade adjusting mechanism stress-strain test bed considering temperature influence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112326433A true CN112326433A (en) | 2021-02-05 |
| CN112326433B CN112326433B (en) | 2021-09-14 |
Family
ID=74318684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011269167.XA Active CN112326433B (en) | 2020-11-13 | 2020-11-13 | Static blade adjusting mechanism stress-strain test bed considering temperature influence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112326433B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577459A (en) * | 2022-03-15 | 2022-06-03 | 东北大学 | Single-stage stationary blade adjusting mechanism dynamic characteristic simulation test bed and test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6050776A (en) * | 1997-09-17 | 2000-04-18 | Mitsubishi Heavy Industries, Ltd. | Gas turbine stationary blade unit |
| CN102023091A (en) * | 2010-10-22 | 2011-04-20 | 中国南方航空工业(集团)有限公司 | Aircraft engine casing static test method and testing assembly thereof |
| CN103954384A (en) * | 2014-04-25 | 2014-07-30 | 西安航空动力股份有限公司 | Dynamic stress testing method for stator vane under operating state of gas turbine engine |
| CN208236758U (en) * | 2018-01-04 | 2018-12-14 | 中国航发商用航空发动机有限责任公司 | Variable stator vane angle regulating mechanism |
| CN209781301U (en) * | 2019-02-25 | 2019-12-13 | 中国航发商用航空发动机有限责任公司 | Aircraft engine |
| CN111504621A (en) * | 2020-04-21 | 2020-08-07 | 中国航发沈阳发动机研究所 | Durability test structure of stator blade angle adjusting mechanism |
-
2020
- 2020-11-13 CN CN202011269167.XA patent/CN112326433B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6050776A (en) * | 1997-09-17 | 2000-04-18 | Mitsubishi Heavy Industries, Ltd. | Gas turbine stationary blade unit |
| CN102023091A (en) * | 2010-10-22 | 2011-04-20 | 中国南方航空工业(集团)有限公司 | Aircraft engine casing static test method and testing assembly thereof |
| CN103954384A (en) * | 2014-04-25 | 2014-07-30 | 西安航空动力股份有限公司 | Dynamic stress testing method for stator vane under operating state of gas turbine engine |
| CN208236758U (en) * | 2018-01-04 | 2018-12-14 | 中国航发商用航空发动机有限责任公司 | Variable stator vane angle regulating mechanism |
| CN209781301U (en) * | 2019-02-25 | 2019-12-13 | 中国航发商用航空发动机有限责任公司 | Aircraft engine |
| CN111504621A (en) * | 2020-04-21 | 2020-08-07 | 中国航发沈阳发动机研究所 | Durability test structure of stator blade angle adjusting mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577459A (en) * | 2022-03-15 | 2022-06-03 | 东北大学 | Single-stage stationary blade adjusting mechanism dynamic characteristic simulation test bed and test method |
| CN114577459B (en) * | 2022-03-15 | 2022-11-25 | 东北大学 | Single-stage stationary blade adjusting mechanism dynamic characteristic simulation test bed and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112326433B (en) | 2021-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109297446B (en) | Device and method for assembling and measuring multistage low-pressure turbine rotor of aircraft engine | |
| CN201488848U (en) | Rotary bearing torque tester | |
| CN112326433B (en) | Static blade adjusting mechanism stress-strain test bed considering temperature influence | |
| CN111795773B (en) | Large-torque sensor calibration device and calibration method | |
| CN113267315A (en) | Low-speed wind tunnel direct-drive gust generating device | |
| CN115184002B (en) | Clamping device for detecting turbine blade of aero-engine | |
| CN214146025U (en) | Fixed blade adjusting mechanism of gas compressor | |
| CN114715428A (en) | Thrust test board for tail rotor of unmanned helicopter | |
| CN212385002U (en) | Aeroengine core machine assembly quality | |
| CN113720612A (en) | Automatic miniature aviation test bed of adjustment | |
| CN111272132B (en) | Detection device and detection method for rotation angle of adjustable flow blade | |
| CN115371882A (en) | Calibration mechanism for torque measuring device of high-power/high-rotating-speed transmission system | |
| CN116413020A (en) | Adjustable rotor blade static moment measuring device and using method | |
| CN116429402A (en) | Multi-parameter test bench for aero-engine stator blade adjusting mechanism and test method thereof | |
| CN217796237U (en) | High-frequency vibration test bed for multi-azimuth test | |
| KR20130078698A (en) | A measuring apparatus for rotor alignment of driving portion and passive portion at a gas turbine engine | |
| CN114577459A (en) | Single-stage stationary blade adjusting mechanism dynamic characteristic simulation test bed and test method | |
| CN112345255A (en) | Complete machine process test run rack of turboshaft engine | |
| CN113324756A (en) | Magnetic coupling performance testing device | |
| CN220542031U (en) | Dynamic calibrating device for blade tip clearance measuring sensor in high-temperature environment | |
| CN112033296A (en) | Harmonic drive flexible gear radial deformation reconfigurable measuring device | |
| CN111458539A (en) | Motor test rack | |
| CN205642255U (en) | Improve axle centering and measure composite set of precision | |
| CN116754208B (en) | Fatigue test device for static blade adjusting mechanism assembly of compressor | |
| CN220552603U (en) | Rotating mechanism of tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |