CN110567349A - stator blade rotation angle measuring structure and calibration method - Google Patents
stator blade rotation angle measuring structure and calibration method Download PDFInfo
- Publication number
- CN110567349A CN110567349A CN201910896048.8A CN201910896048A CN110567349A CN 110567349 A CN110567349 A CN 110567349A CN 201910896048 A CN201910896048 A CN 201910896048A CN 110567349 A CN110567349 A CN 110567349A
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- Prior art keywords
- measuring
- rocker arm
- rotation angle
- stator blade
- angle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application belongs to the technical field of compressor stator blade turned angle survey, concretely relates to stator blade turned angle survey structure, include: the pointer is connected with a rocker arm, and the rocker arm is called a measuring rocker arm; and the dial is used for identifying the deflection angle of the pointer. In addition, still relate to a stator blade turned angle calibration method based on above-mentioned stator blade turned angle survey structure is implemented.
Description
Technical Field
The application belongs to the technical field of measurement of the rotating angle of a stator blade of an air compressor, and particularly relates to a structure and a calibration method for measuring the rotating angle of the stator blade.
background
The compressor is generally provided with a plurality of rocker arms, one end of each rocker arm is correspondingly connected with a part of one stator blade extending out of a compressor casing, and a linkage ring sleeved on the compressor casing is arranged, the linkage ring is connected with the other end of each rocker arm, an actuating cylinder connected with the linkage ring drives the linkage ring to rotate, and each rocker arm is synchronously driven to swing, so that the angle of each stator blade is synchronously changed, and the inlet flow of the compressor is adjusted.
In order to accurately control the inlet flow of the compressor, the rotating angle of each stator blade needs to be known exactly, and therefore, a special angle measuring tool is designed currently for measuring the rotating angle of each stator blade, and the special angle measuring tool has the following defects:
1) the structure is complex, the operation is not easy, and the measuring efficiency is low;
2) And high machining and assembling precision is required, and the accuracy of a measurement result is limited by the machining and assembling precision.
The present application is made in view of the above-mentioned drawbacks of the prior art.
disclosure of Invention
The present application is directed to a stator blade rotation angle measuring structure and a calibration method thereof, which overcome or alleviate at least one of the disadvantages of the prior art.
The technical scheme of the application is as follows:
in one aspect, a stator blade rotation angle measuring structure is provided, including:
The pointer is connected with a rocker arm, and the rocker arm is called a measuring rocker arm;
And the dial is used for identifying the deflection angle of the pointer.
According to at least one embodiment of the present application, the pointer is adapted to be connected to an end of the gauging rocker arm, which end of the gauging rocker arm is connected to the link ring.
according to at least one embodiment of the present application, an identification line is engraved on the pointer; the marking line is parallel to the axis of the measuring rocker arm, and the extension line of the marking line intersects with the rotation center line of the stator blade which is connected with the measuring rocker arm.
According to at least one embodiment of the present application, the dial is for mounting to the case.
according to at least one embodiment of the present application, the gauging rocker arm has a reference hole therein;
The stator blade rotation angle measuring mechanism further includes a reference pin having:
In the reference state, one end of a reference pin penetrates through the reference hole to be abutted against the casing, and the measuring rocker arm is fixed so as to adjust the position of the scale disc to enable the deflection angle to reach the reference angle;
in the measurement state, the reference pin is separated from the casing, and the measurement rocker arm is released from being fixed.
According to at least one embodiment of the present application, the casing has a positioning hole;
the reference pin is at:
When in a reference state, the reference pin penetrates through one end of the reference hole and is inserted into the positioning hole;
And when the state is measured, the reference pin penetrates through one end of the reference hole to be separated from the positioning hole.
In another aspect, a stator blade turning angle method is provided, including:
Stator blade rotation range calibration: setting a reference pin in a measuring state, and adjusting to enable a piston rod of the actuating cylinder to be in:
in a fully extended state, the deflection angle deviates from the reference angle to reach a first preset value;
and in a fully contracted state, the deflection angle deviates from the reference angle to reach a second preset value.
In some optional embodiments, further comprising:
calibrating a piston rod of the actuating cylinder: adjusting the extension length of the piston rod; a plurality of deflection angles are recorded corresponding to different extension lengths of the piston rod.
Drawings
FIG. 1 is a schematic view of an angle of a stator vane rotation angle measuring structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of another angle of a stator vane rotation angle measuring structure according to an embodiment of the present disclosure;
FIG. 3 is a schematic overall view of a stator blade rotation angle measuring structure according to an embodiment of the present application;
wherein:
1-a pointer; 2-a rocker arm; 3-a dial scale; 4-a linkage ring; 5-stator blades; 6-a casing; 7-reference pin; 8-an actuator cylinder; 9-actuator cylinder connecting rod; 10-adjusting sleeve.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
it should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
it should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.
the present application is described in further detail below with reference to fig. 1 to 3.
A stator blade rotation angle determining structure comprising:
a pointer 1 for connection to a rocker arm 2, called measuring rocker arm;
A scale 3 for identifying the deflection angle of the pointer 1.
for the stator blade rotation angle measuring structure disclosed in the above embodiment, those skilled in the art can understand that the measuring rocker arm connected to the stator blade 5 and the other rocker arms 2 move synchronously under the driving of the link ring 4, and the pointer 1 moves along with the measuring rocker arm, so that the deflection angle changes, and thus the rotation angle of the stator blade 5 can be obtained conveniently and quickly.
In some alternative embodiments, the pointer 1 is intended to be connected to one end of a measuring rocker, which is connected to the link ring 4.
In some optional embodiments, the pointer 1 is engraved with an identification line; the marking line is parallel to the axis of the measuring rocker arm, and the extension line of the marking line intersects with the rotating central line of the stator blade 5, and the stator blade is connected with the measuring rocker arm so as to improve the accuracy of measuring the rotating angle of the stator blade 5.
in some alternative embodiments, the dial 3 is adapted to be mounted to the case 6.
in some alternative embodiments, the sensing rocker arm has a reference hole therein;
the stator blade rotation angle measuring mechanism further includes a reference pin 7 having:
in the reference state, one end of a reference pin 7 passes through a reference hole to be abutted with the casing 6, and the measuring rocker arm is fixed so as to adjust the position of the scale 3 and enable the deflection angle to reach a reference angle which can be used as a reference for measuring the rotation angle of the stator blade 5;
in the measuring state, the reference pin 7 is separated from the casing 6, the fixing of the measuring rocker arm is released, and at the moment, the measuring rocker arm and the pointer 1 connected with the measuring rocker arm can move under the driving of the linkage ring 4.
in some alternative embodiments, the casing 6 has positioning holes;
The reference pin 7 is:
in the reference state, the reference pin 7 passes through one end of the reference hole and is inserted into the positioning hole;
When the state is measured, the reference pin 7 passes through one end of the reference hole to be separated from the positioning hole.
in another aspect, a stator blade rotation angle calibration method is provided, including:
Stator blade rotation range calibration: the reference pin 7 is set in a measurement state, and the adjustment is performed so that the piston rod of the actuator cylinder 8 is:
In a fully extended state, the deflection angle deviates from the reference angle to reach a first preset value;
And in a fully contracted state, deviating the deflection angle from the reference angle to a second preset value.
For the method for calibrating the rotation angle of the stator vane provided in the above embodiment, it can be understood by those skilled in the art that when the piston rod is in the fully extended state or the fully retracted state, the deflection angle can be deviated from the reference angle to reach the first predetermined value or the second predetermined value by correspondingly adjusting the position of the actuator cylinder 8 and the settings of the actuator cylinder connecting rod 9 and the adjusting sleeve 10 thereon, so as to complete the step of calibrating the rotation range of the stator vane;
after the stator blade rotation angle measuring structure disclosed based on the above embodiment completes the stator blade rotation range calibration step, the rotation angle of each stator blade 5 driven by the piston rod of the actuator cylinder 8 in a telescopic manner is limited within the range of the first predetermined value and the second predetermined value, and the range can be determined according to the actual requirement of the rotation angle of the stator blade 5.
In some optional embodiments, further comprising:
calibrating a piston rod of the actuating cylinder: adjusting the extension length of the piston rod; a plurality of deflection angles are recorded corresponding to different extension lengths of the piston rod.
as for the calibration method of the rotation angle of the stator vane provided in the above embodiment, it can be understood by those skilled in the art that, within the range of the first predetermined value and the second predetermined value, the extension length of the piston rod of the actuator cylinder 8 has a one-to-one correspondence with the deflection angle, that is, the rotation angle of the stator vane 5 has a one-to-one correspondence, and the correspondence can be determined through the calibration step of the piston rod of the actuator cylinder.
so far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.
Claims (8)
1. A stator blade rotation angle measuring structure, comprising:
the pointer (1) is connected with a rocker arm (2), and the rocker arm is called a measuring rocker arm;
a dial (3) for identifying the angle of deflection of the pointer (1).
2. the stator vane rotation angle measuring structure according to claim 1,
the pointer (1) is used for being connected with one end of the measuring rocker arm, and the end of the measuring rocker arm is connected with the linkage ring (4).
3. the stator vane rotation angle measuring structure according to claim 1,
an identification line is carved on the pointer (1); the marking line is parallel to the axis of the measuring rocker arm, and the extension line of the marking line intersects with the rotating center line of the stator blade (5) which is connected with the measuring rocker arm.
4. the stator vane rotation angle measuring structure according to claim 1,
The dial (3) is intended to be mounted on a housing (6).
5. The stator vane rotation angle determining mechanism according to claim 1,
The measuring rocker arm is provided with a reference hole;
the stator blade rotation angle measuring mechanism further includes a reference pin (7) having:
In a reference state, one end of the reference pin (7) penetrates through the reference hole to be abutted against the casing (6), and the measuring rocker arm is fixed so as to adjust the position of the scale disc (3) to enable the deflection angle to reach a reference angle;
and in a measuring state, the reference pin (7) is separated from the casing (6), and the measuring rocker arm is released from being fixed.
6. the stator vane rotation angle determining mechanism according to claim 5,
the casing (6) is provided with a positioning hole;
The reference pin (7) is in:
when in the reference state, the reference pin (7) penetrates through one end of the reference hole and is inserted into the positioning hole;
and when the state is measured, the reference pin (7) penetrates through one end of the reference hole to be separated from the positioning hole.
7. A stator blade rotation angle calibration method is characterized by comprising the following steps:
stator blade rotation range calibration: the reference pin (7) is set in a measuring state, and the adjustment is performed so that the piston rod of the actuator cylinder (8) is in:
in a fully extended state, the deflection angle deviates from the reference angle to reach a first preset value;
And in a fully contracted state, the deflection angle deviates from the reference angle to reach a second preset value.
8. The stator blade rotation angle calibration method according to claim 8, further comprising:
Calibrating a piston rod of the actuating cylinder: adjusting the extension length of the piston rod; a plurality of deflection angles are recorded corresponding to different extension lengths of the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896048.8A CN110567349A (en) | 2019-09-22 | 2019-09-22 | stator blade rotation angle measuring structure and calibration method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896048.8A CN110567349A (en) | 2019-09-22 | 2019-09-22 | stator blade rotation angle measuring structure and calibration method |
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| Publication Number | Publication Date |
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| CN110567349A true CN110567349A (en) | 2019-12-13 |
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| CN201910896048.8A Pending CN110567349A (en) | 2019-09-22 | 2019-09-22 | stator blade rotation angle measuring structure and calibration method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425463A (en) * | 2020-04-09 | 2020-07-17 | 中国航发沈阳发动机研究所 | Stator blade rotation angle adjusting and measuring structure |
| CN111441994A (en) * | 2020-04-09 | 2020-07-24 | 中国航发沈阳发动机研究所 | Stator blade rotation angle adjusting and measuring structure and calibration method thereof |
| CN112033266A (en) * | 2020-09-11 | 2020-12-04 | 中国航发贵州黎阳航空动力有限公司 | Measuring tool and method for measuring angle of rectifying blade with positioning pin |
| CN115014791A (en) * | 2022-06-23 | 2022-09-06 | 南京航空航天大学 | Stationary blade angle adjusting and calibrating method for aero-engine compression component test and angular displacement sensor mounting method |
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| CN209027442U (en) * | 2018-12-24 | 2019-06-25 | 济宁骏达机械制造有限公司 | A kind of measuring device of wheel rim valve orifice angle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425463A (en) * | 2020-04-09 | 2020-07-17 | 中国航发沈阳发动机研究所 | Stator blade rotation angle adjusting and measuring structure |
| CN111441994A (en) * | 2020-04-09 | 2020-07-24 | 中国航发沈阳发动机研究所 | Stator blade rotation angle adjusting and measuring structure and calibration method thereof |
| CN112033266A (en) * | 2020-09-11 | 2020-12-04 | 中国航发贵州黎阳航空动力有限公司 | Measuring tool and method for measuring angle of rectifying blade with positioning pin |
| CN112033266B (en) * | 2020-09-11 | 2021-11-02 | 中国航发贵州黎阳航空动力有限公司 | Measuring tool and method for measuring angle of rectifying blade with positioning pin |
| CN115014791A (en) * | 2022-06-23 | 2022-09-06 | 南京航空航天大学 | Stationary blade angle adjusting and calibrating method for aero-engine compression component test and angular displacement sensor mounting method |
| CN115014791B (en) * | 2022-06-23 | 2023-03-31 | 南京航空航天大学 | Stationary blade angle adjusting and calibrating method for aero-engine compression component test and angular displacement sensor mounting method |
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Application publication date: 20191213 |