CN215865160U - Adjustable stator corner measuring device and calibration tool - Google Patents
Adjustable stator corner measuring device and calibration tool Download PDFInfo
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- CN215865160U CN215865160U CN202121448485.2U CN202121448485U CN215865160U CN 215865160 U CN215865160 U CN 215865160U CN 202121448485 U CN202121448485 U CN 202121448485U CN 215865160 U CN215865160 U CN 215865160U
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Abstract
The adjustable guide vane corner measuring device comprises a positioning device, an angle measuring device and an auxiliary positioning device. The positioning device comprises a shaft part which is fixedly connected with the end face of the first adjustable stator blade or the first rocker arm so that the rocker arm, the shaft part and the first adjustable stator blade form a whole and rotate along with the first adjustable stator blade; the angle measuring device comprises an encoder and a support plate, wherein the support plate is provided with a waist-shaped hole, the encoder comprises a first fixed part fixedly arranged on the support plate and a second rotating part which is tightly held outside the shaft part and can rotate along with the shaft part, and the angle measuring device can output the rotating angle of the second rotating part relative to the first fixed part; the auxiliary positioning device comprises a third positioning shaft which penetrates through the kidney-shaped hole and is fixedly connected with the end face of the second adjustable stator blade or the second rocker arm. The corner of the adjustable guide vane can be conveniently and efficiently measured. Still provide an adjustable stator corner measuring device and markd frock.
Description
Technical Field
The utility model relates to the technical field of aero-engines and gas turbines, in particular to the field of adjustable stator guide vane rotation angle measurement.
Background
The adjustable stator guide vane system (hereinafter referred to as adjustable guide vane) of the high-pressure compressor comprises two parts, namely an adjusting mechanism and an external device which are arranged on a casing, and a stator vane which is arranged between inner rotors of the high-pressure compressor. The external equipment for the adjustable guide vanes includes hydraulic cylinders, drive arms, which may take the form of, for example, dual crankshaft rockers or torsion bars, feedback sensors and linkage rings. The internal equipment of the adjustable guide Vane comprises an adjustable Stator Vane (VSV for short), the integral motion of the adjustable Stator Vane is that a piston in an actuating cylinder pushes a driving arm, the driving arm pushes a linkage ring to enable the linkage ring to rotate around the axis of an engine, then the linkage ring drives a rocker arm to rotate around the rotation axis of the Stator Vane, and the rotation of the rocker arm enables the Stator Vane to rotate around the rotation axis, so that the angle of the Stator Vane is adjusted.
The adjustment of the stator blade angle firstly needs to accurately measure the rotation angle of the stator blade, and how to accurately obtain the stator blade rotation angle is a key link in VSV adjustment and calibration.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an adjustable guide vane rotating angle measuring device which can realize the rotating angle measurement of an adjustable stator blade with high efficiency and high precision.
The device for measuring the rotating angle of the adjustable guide vane comprises a positioning device, an angle measuring device and an auxiliary positioning device. The positioning device comprises a shaft part which is fixedly connected with the end face of the first adjustable stator blade or the first rocker arm so that the rocker arm, the shaft part and the first adjustable stator blade form a whole and rotate along with the first adjustable stator blade; the angle measuring device comprises an encoder and a support plate, wherein the support plate is provided with a waist-shaped hole, the encoder comprises a first fixed part fixedly arranged on the support plate and a second rotating part which is tightly held outside the shaft part and can rotate along with the shaft part, and the angle measuring device can output the rotating angle of the second rotating part relative to the first fixed part; the auxiliary positioning device comprises a third positioning shaft which penetrates through the kidney-shaped hole and is fixedly connected with the end face of the second adjustable stator blade or the second rocker arm.
In one or more embodiments, the shaft portion includes a first positioning shaft and a second positioning shaft, the first positioning shaft is in threaded connection with a shank threaded section of the tail end of the first adjustable stator blade, the second positioning shaft is sleeved on the periphery of the first positioning shaft, and the second positioning shaft is pressed on the end face of the rocker arm by pressing force applied by a pressing nut located at the top end of the second positioning shaft.
In one or more embodiments, the second positioning shaft includes a dovetail slot that mates with the first rocker arm end surface.
In one or more embodiments, the first fixing portion is a housing, the housing is fixed on the support plate through a plurality of fastening screws, and the second rotating portion is a shaft sleeve rotatably sleeved on the outer side of the second positioning shaft.
In one or more embodiments, the bushing is rotatably engaged with the second positioning shaft by a locking screw and is constrained in an axial position by a radial projection of the housing.
In one or more embodiments, the third positioning shaft tail is threadedly connected to the shank thread segment at the second adjustable stator vane tail.
The utility model also aims to provide a calibration tool for the adjustable guide vane corner measuring device, which comprises a calibration platform, wherein the calibration platform comprises a first positioning hole and a second positioning hole, the first positioning hole is used for fixing the shaft part, the second positioning hole is used for fixing the third positioning shaft, and the connecting line of the first positioning hole and the second positioning hole is perpendicular to the axial direction of the engine.
In one or more embodiments, the first positioning hole includes a positioning screw for providing a thread matching with the first positioning shaft, and a limiting block, which abuts against the second positioning shaft and is fixed on the calibration platform by a screw.
In one or more embodiments, the second positioning hole includes a positioning boss cooperating with the third positioning shaft.
In one or more embodiments, the calibration platform further includes a third positioning hole, a connecting line of the third positioning hole and the first positioning hole forms an angle with respect to a connecting line of the first positioning hole and the second positioning hole, and the third positioning hole is used for fixing the third positioning shaft.
The adjustable guide vane corner measuring device can quickly and conveniently measure the corner change of the adjustable stator blade through the positioning device, the auxiliary positioning device and the encoding device, and the measured angle has high precision.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of an adjustable guide vane corner measuring device;
FIG. 2 is a cross-sectional view of an embodiment of an adjustable guide vane rotational angle measuring device;
FIG. 3 is a schematic view of a blade corner;
FIG. 4 is a schematic view of an embodiment of a calibration fixture for an adjustable guide vane rotation angle measuring device;
FIG. 5 is a sectional view of an embodiment of a calibration fixture for an adjustable guide vane rotation angle measuring device.
Description of the reference numerals
1 Adjustable stator blade
2 Rocker arm
3 nut
6 linking ring
7 calibration tool for adjustable guide vane corner measuring device
1-1 first adjustable stator vane
1-2 second adjustable stator blade
2-1 end surface of first rocker arm
2-2 second rocker arm end face
4-1 outer casing
4-2 shaft sleeve
4-3 signal connector
4-5 radial protrusions
5-1 first positioning shaft
5-2 second positioning shaft
5-3 compression nut
5-5 third positioning shaft
5-4 support plate
5-6 fastening screw
5-7 waist-shaped holes
7-1 calibration platform
7-2 set screw
7-3 limiting block
7-4 positioning shaft sleeve
7-7 third positioning hole
7-8 first positioning holes
7-9 second positioning hole
100 positioning device
101 shaft part
400-degree measuring device
200 auxiliary positioning device
Detailed Description
The present invention is further described in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from those described herein, and it will be readily appreciated by those skilled in the art that the present invention can be implemented in many different forms without departing from the spirit and scope of the utility model. It is noted that these and other figures which follow are merely exemplary and not drawn to scale and should not be considered as limiting the scope of the utility model as it is actually claimed.
In fig. 1, the link ring 6 is driven to rotate around the axis of the engine, and the mechanism for driving the link ring includes, in one embodiment, a cylinder whose piston pushes a driving arm that pushes the link ring 6. The linkage ring 6 is hinged to one end of the rocker arm 2, the other end of the rocker arm 2 is matched with the adjustable stator blade 1 through a key and is pressed tightly through the nut 3, therefore, the linkage ring 6 drives the rocker arm 2 to rotate around the self axis Z1 of the adjustable stator blade 1, and the rotation of the rocker arm 2 can drive the adjustable stator blade 1 to rotate synchronously. It should be noted that the rocker arm 2 rotates about its own axis Z1 of the adjustable stator vane 1, thus driving the adjustable stator vane to rotate about its own axis Z1, thereby realizing the adjustment of the angle of the stator vane.
The adjustable stator blade angle measuring device can measure the angle reading of the adjustable stator blade quickly and accurately when the angle of the adjustable stator blade changes.
As can be understood with reference to fig. 1 and 2, the adjustable guide vane rotation angle measuring device includes a positioning device 100, an angle measuring device 400, and an auxiliary positioning device 200. The positioning device 100 comprises a shaft portion 101, wherein the shaft portion 101 is used for being fixedly connected with the first adjustable stator blade 1-1 or the end surface 2-1 of the first rocker arm, so that the rocker arm 2, the shaft portion 101 and the first adjustable stator blade 1-1 form a whole, and the rocker arm 2, the second positioning shaft 5-2 and the first adjustable stator blade 1-1 have uniform freedom, so that the shaft portion 101 can rotate along with the first adjustable stator blade 1-1. Because the rocker arm 2 drives the adjustable stator blade 1 to rotate, the shaft part 101 can be directly and fixedly connected with the rocker arm 2 or fixedly connected with the adjustable stator blade 1, and the above modes can play a role in enabling the rocker arm 2, the shaft part 101 and the first adjustable stator blade 1-1 to form a whole body, and the details are not repeated.
The relative position of the second adjustable stator vane 1-2 and the first adjustable stator vane 1-1 includes, but is not limited to, one stator vane apart as shown in fig. 2, and in other embodiments, the second adjustable stator vane 1-2 and the first adjustable stator vane 1-1 may be separated by several stator vanes or adjacent to each other. Those skilled in the art will appreciate that the choice of the position of the second adjustable stator blade 1-2 is determined by the operator in particular depending on the actual measurement situation.
The angle measuring device 400 includes a support plate 5-4 extending outward from the outer periphery of the shaft 101 and having a kidney-shaped hole 5-7 for cooperation with the auxiliary positioning device 200 for accurate positioning, and an encoder.
The encoder comprises a first fixing part and a second rotating part, the first fixing part is fixedly arranged on the support plate 5-4, the second rotating part is tightly held outside the shaft part 101 and can rotate along with the shaft part 101, the angle measuring device 400 can output the rotating angle of the second rotating part relative to the first fixing part, and the rotating angle is the rotating angle of the first adjustable stator blade 1-1 driven by the interlocking ring 6 and the rocker arm 2. The angle measuring device 400 can convert the signal of the rotation angle of the second rotating part relative to the first fixed part into a rotation angle reading output.
The auxiliary positioning device 200 comprises a third positioning shaft 5-5, and the third positioning shaft 5-5 penetrates through a kidney-shaped hole 5-7 in the support plate 5-4 and is fixedly connected with the second adjustable stator blade 1-2 or the end face 2-2 of the second rocker arm. When the linkage ring 6 drives the whole circle of blades to rotate, the rotation axis Z2 axis of the second stator blade 1-2 is not changed, so that the second stator blade 1-2 is always positioned in the kidney-shaped hole of the support plate 5-4.
The third positioning shaft 5-5 which is connected with the second adjustable stator blade 1-2 and matched with the kidney-shaped hole 5-7 is arranged, so that auxiliary positioning of the adjustable guide vane rotation angle measuring device can be realized, as long as the third positioning shaft 5-5 is kept in the kidney-shaped hole 5-7, the relative positions of the adjustable stator blades are kept unchanged, the linkage ring 6 and the rocker arm 2 have accuracy in the adjusting process, and the angle measured by the adjustable guide vane rotation angle measuring device is ensured to have higher accuracy.
In one embodiment shown in FIG. 2, the first stationary portion is a housing 4-1, and the housing 4-1 is secured to the plate 5-4 by a plurality of fastening screws 5-6. The freedom of the housing 4-1 is fully limited by the fixing action of a plurality of fastening screws 5-6 in the axial direction of the first adjustable stator vane 1-1. The second rotating part is a shaft sleeve 4-2 which is rotatably sleeved on the outer side of the second positioning shaft 5-2, the shaft sleeve 4-2 is tightly held on the outer side of the second positioning shaft 5-2 through a locking screw, is rotatably matched with the second positioning shaft 5-2, and is limited at the axial position of the shaft part 101 through a radial bulge 5-4 of the shell 4-1. Namely, the shaft sleeve 4-2 is positioned in the shell 4-1, is sleeved outside the second positioning shaft 5-2 and can rotate along with the first adjustable stator blade 1-1. Thus, the sleeve 4-2, which is locked inside by the radial locking screw, forms an encoder body with the housing 4-1, which in turn forms an encoder body with the support plate 5-4 by means of a plurality of fastening screws 5-6 fixed to the support plate 5-4, whereby the angle measuring device 400 is fixed in axial position on the shaft part 101.
Since the sleeve 4-2 can only rotate in the housing 4-1 and is restricted by the radial projections 5-4 to have no play in the axial direction, the sleeve 4-2 forms an integral body with the second positioning shaft 5-2 without relative movement. After the shaft sleeve 4-2 and the positioning shaft 5-2 are clamped, the degree of freedom of the angle measuring device 400 along the axial direction of the first adjustable stator blade 1-1 is also restricted. When the first adjustable stator blade 1-1 rotates around the Z1 shaft, the shaft sleeve 4-2 can synchronously rotate around the Z1 shaft along with the second positioning shaft 5-2, the degree of freedom of the shell 4-1 is completely limited, so that the shaft sleeve 4-2 has a relative angle relative to the encoder shell 4-1, the relative angle is the angle which the first adjustable stator blade 1-1 rotates under the driving of the rocker arm 2, and the angle value can be identified and output, thereby completing the measurement process of the blade rotation angle.
In the embodiment shown in fig. 2, the angle measuring device 400 converts the signal of the rotation angle of the second rotating part relative to the first fixed part into a rotation angle reading value, i.e. the rotation angle of the first adjustable stator blade 1-1, by means of the encoder signal receiver and the encoder signal converter externally connected to the signal connector 4-3. The manner in which the angle measurement device 400 outputs signals includes, but is not limited to, the above-described embodiments, and those skilled in the art will appreciate that suitable encoder angle measurement, output devices, and the like may be applied to the present disclosure without departing from the scope of the present disclosure.
With continued reference to fig. 2, in one embodiment, the shaft portion 101 includes a first positioning shaft 5-1 and a second positioning shaft 5-2, the first positioning shaft 5-1 is threadedly connected to a shank thread section at the tail end of the first adjustable stator vane 1-1, the second positioning shaft 5-2 is sleeved on the periphery of the first positioning shaft 5-1, and the second positioning shaft 5-2 is pressed against the rocker arm end surface 2-1 by a pressing force applied by a pressing nut 5-3 at the top end of the second positioning shaft 5-2. The first positioning shaft 5-1 and the second positioning shaft 5-2 are fixedly connected with the first adjustable stator blade 1-1 and the rocker arm 2 respectively, so that the rocker arm 2, the shaft part 101 and the first adjustable stator blade 1-1 form a whole.
On the basis of the above embodiment, it is preferable that, in order to achieve secure fitting of the second positioning shaft 5-2 to the rocker arm 2, one end of the second positioning shaft 5-2 includes a dovetail groove that is fitted with the rocker arm end face 2-1 having a dovetail shape to bear the pressing force applied by the pressing nut 5-3.
In one embodiment, the tail of the third positioning shaft 5-5 is in threaded connection with the blade shank threaded section at the tail of the second adjustable stator blade 1-2, that is, the tail of the third positioning shaft 5-5 is provided with a threaded hole matched with the blade shank threaded section at the tail of the second adjustable stator blade 1-2, and is fixedly connected with the second adjustable stator blade 1-2 through threaded connection to form a rotating whole. The third positioning shaft 5-5 can also be directly and fixedly connected with the end surface 2-2 of the second rocker arm so as to form a rotating whole with the second adjustable stator blade 1-2.
Referring to fig. 3, the blade rotation angle measured by the adjustable guide vane rotation angle measuring device is the rotation angle of the first adjustable stator blade 1-1 relative to the Z1 axis, that is, the angle equal to the phase difference of the encoder shaft sleeve 4-2 relative to the encoder housing 4-1 during the measurement process. For convenience of reading, the axial direction of the engine as a whole is set to the Y axis, the direction perpendicular to the Y axis is set to the X axis, and the state where the rocker arm 2 is perpendicular to the Y axis or parallel to the X axis is set to 0 °.
In fig. 3, the adjustable stator vane 1 forms an angle a with the Y-axis when the rocker arm 2 is rotated. If the rotation angle of the adjustable stator blade 1 with respect to the Z1 axis is set to be equal to the included angle α between the rocker arm 2 and the Y axis, it is necessary to zero the indication of the angle measuring device before the adjustable guide vane rotation angle measuring device is mounted to the engine.
An adjustable guide vane corner measuring device calibration tool 7 is used for calibrating the adjustable guide vane corner measuring device, so that the angle reading of an angle measuring device 400 is consistent with a defined corner alpha.
Referring to fig. 4 and 5, the calibration fixture 7 includes a calibration platform 7-1, the calibration platform 7-1 includes a first positioning hole 7-8 and a second positioning hole 7-9, the first positioning hole 7-8 is used for fixing the shaft portion 101, the second positioning hole 7-9 is used for fixing the third positioning shaft 5-5, and a connection line between the first positioning hole 7-8 and the second positioning hole 7-9 is perpendicular to an engine axis direction, that is, a Y axis direction shown in fig. 3.
Thus, angle measuring device 400 is zeroed when shaft portion 101 and third positioning shaft 5-5 simultaneously engage first positioning aperture 7-8 and second positioning aperture 7-9, and when angle measuring device 400 again displays a blade rotation angle reading equal to defined rotation angle α.
In one embodiment, the first positioning hole 7-8 comprises a set screw 7-2, the set screw 7-2 being configured to provide a thread for mating with the first positioning shaft 5-1 to simulate a threaded mating of a shank thread segment at the trailing end of the first adjustable stator vane 1-1 with the first positioning shaft 5-1. The first positioning hole 7-8 further comprises a limiting block 7-3, the limiting block 7-3 abuts against the second positioning shaft 5-2 and is fixed on the calibration platform 7-1 through a screw to simulate the matching of the second positioning shaft 5-2 and the end face 2-1 of the rocker arm.
The second positioning hole 7-9 comprises a positioning shaft sleeve 7-4 matched with the third positioning shaft 5-5. The positioning of the third positioning shaft 5-5 on the calibration platform 7-1 is achieved by the interposition of the third positioning shaft 5-5 and the bushing 7-4. Meanwhile, the third positioning shaft 5-5 can be conveniently detached by pulling out the shaft sleeve 7-4 from the third positioning shaft 5-5.
The calibration platform 7-1 further comprises a third positioning hole 7-7, a connecting line of the third positioning hole 7-7 and the first positioning hole 7-8 forms a certain angle relative to a connecting line of the first positioning hole 7-8 and the second positioning hole 7-9, and the third positioning hole 7-7 is used for fixing the third positioning shaft 5-5 so as to check the measurement accuracy of the angle measurement device 400.
For example, in fig. 4, two third positioning holes 7-7 are respectively located at two sides forming an angle of 30 ° with the X-axis, and the two 30 ° holes at two sides can verify the measurement accuracy of the angle measurement device 400, thereby ensuring the accuracy of the measurement device.
The third positioning hole 7-7 includes, but is not limited to, being disposed at an angle of 30 ° with respect to the X-axis, and it should be understood by those skilled in the art that since the third positioning hole 7-7 is used for detecting the measurement accuracy of the adjustable guide vane rotation angle measuring device, it can be designed at various optional angles.
The calibration and measurement process will be described with reference to fig. 5 and 2. The adjustable guide vane rotating angle measuring device is installed on a calibration tool, a first positioning shaft 5-1 is matched with a first positioning hole 7-8, and a pressing nut 5-3 applies pressing force to a second positioning shaft 5-2 to press the second positioning shaft 5-2 to a limiting block 7-3. The third positioning shaft 5-5 is matched with the shaft sleeve 7-4 to be fixed on the calibration platform 7-1.
This represents the adjustable rotor blade 1 perpendicular to the Y-axis or parallel to the X-axis, and the angle measuring device 400 is zeroed. Since the line connecting the first positioning hole 7-8 and the second positioning hole 7-9 is perpendicular to the engine axis Y, i.e., parallel to the X axis shown in fig. 3, zero degrees of the angle measuring device indicates that the first adjustable stator blade 1-1 is perpendicular to the Y axis or parallel to the X axis.
And (4) detaching the calibrated adjustable guide vane corner measuring device and installing the adjustable guide vane corner measuring device on the engine. The first positioning shaft 5-1 is in threaded connection with the tail end of the first adjustable stator blade 1-1, the second positioning shaft 5-2 is pressed on the end face 2-1 of the first rocker arm through a pressing nut 5-3, and the third positioning shaft 5-5 penetrates through a kidney-shaped hole 5-7 of the support plate 5-4 to be in threaded connection with the tail end of the second adjustable stator blade 1-2.
The linkage ring 6 rotates to drive the adjustable stator blade 1 to rotate, at the moment, the shaft sleeve 4-2 rotates along with the first adjustable stator blade 1-1, the shaft sleeve 4-2 and the shell 4-1 form a relative rotation angle, the signal receiver and the external encoder signal converter output the identified angle, and the angle is consistent with the angle a defined in the figure 3.
Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the utility model, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.
Claims (10)
1. An adjustable stator blade rotation angle measuring device is used for measuring the rotation angle of an adjustable stator blade, and is characterized by comprising:
a positioning device (100) comprising a shaft portion (101),
the shaft part (101) is fixedly connected with a first adjustable stator blade (1-1) or a first rocker arm end surface (2-1), so that the rocker arm (2), the shaft part (101) and the first adjustable stator blade (1-1) form a whole and rotate along with the first adjustable stator blade (1-1);
the angle measuring device (400) comprises an encoder and a support plate (5-4), wherein the support plate (5-4) is provided with a waist-shaped hole (5-7),
the encoder comprises a first fixed part and a second rotating part, the first fixed part is fixedly arranged on the support plate (5-4), the second rotating part is tightly held outside the shaft part (101) and can rotate along with the shaft part (101), and the angle measuring device (400) can output the rotating angle of the second rotating part relative to the first fixed part; and
the auxiliary positioning device (200) comprises a third positioning shaft (5-5), and the third positioning shaft (5-5) penetrates through the kidney-shaped hole (5-7) and is fixedly connected with the second adjustable stator blade (1-2) or the end face (2-2) of the second rocker arm.
2. The adjustable guide vane rotation angle measuring device according to claim 1, wherein the shaft portion (101) comprises a first positioning shaft (5-1) and a second positioning shaft (5-2), the first positioning shaft (5-1) is in threaded connection with a shank threaded section at the tail end of the first adjustable stator blade (1-1), the second positioning shaft (5-2) is sleeved on the periphery of the first positioning shaft (5-1), and the pressing force applied by a pressing nut (5-3) at the top end of the second positioning shaft (5-2) is pressed on the first rocker end surface (2-1).
3. The adjustable guide vane rotation angle measuring device according to claim 2, characterized in that the second positioning shaft (5-2) comprises a dovetail groove which is fitted with the first rocker arm end face (2-1).
4. The adjustable guide vane rotation angle measuring device according to claim 2, characterized in that the first fixing portion is a housing (4-1) fixed to the support plate (5-4) by a plurality of fastening screws (5-6),
the second rotating part is a shaft sleeve (4-2) which is rotatably sleeved on the outer side of the second positioning shaft (5-2).
5. The adjustable guide vane rotation angle measuring device according to claim 4, characterized in that the shaft sleeve (4-2) is rotatably engaged with the second positioning shaft (5-2) by a locking screw and is limited in axial position by a radial protrusion (4-5) of the housing (4-1).
6. The adjustable guide vane rotation angle measuring device according to claim 1, characterized in that the tail of the third positioning shaft (5-5) is in threaded connection with the threaded section of the shank at the tail end of the second adjustable stator blade (1-2).
7. An adjustable guide vane corner measuring device calibration tool is used for calibrating an adjustable guide vane corner measuring device according to any one of claims 1 to 6, and is characterized by comprising:
a calibration platform (7-1), the calibration platform (7-1) comprises a first positioning hole (7-8) and a second positioning hole (7-9),
the first positioning hole (7-8) is used for fixing the shaft part (101), the second positioning hole (7-9) is used for fixing the third positioning shaft (5-5), and a connecting line of the first positioning hole (7-8) and the second positioning hole (7-9) is perpendicular to the axial direction of the engine.
8. An adjustable guide vane corner measuring device calibration tool is used for calibrating the adjustable guide vane corner measuring device according to claim 2, and is characterized by comprising:
a calibration platform (7-1), the calibration platform (7-1) comprises a first positioning hole (7-8) and a second positioning hole (7-9),
the first positioning hole (7-8) is used for fixing the shaft part (101), the second positioning hole (7-9) is used for fixing the third positioning shaft (5-5), the connecting line of the first positioning hole (7-8) and the second positioning hole (7-9) is vertical to the axial direction of the engine,
the first positioning hole (7-8) comprises a positioning screw (7-2), the positioning screw (7-2) is used for providing a thread matched with the first positioning shaft (5-1),
the device is characterized by further comprising a limiting block (7-3), wherein the limiting block (7-3) is fixed on the calibration platform (7-1) through a screw and used for abutting against the second positioning shaft (5-2).
9. The calibration fixture for the adjustable guide vane rotation angle measuring device according to claim 7, wherein the second positioning hole (7-9) comprises a positioning shaft sleeve (7-4) matched with the third positioning shaft (5-5).
10. The calibration tool for the adjustable guide vane rotation angle measuring device according to claim 7, wherein the calibration platform (7-1) further comprises a third positioning hole (7-7), a connecting line of the third positioning hole (7-7) and the first positioning hole (7-8) forms an angle relative to a connecting line of the first positioning hole (7-8) and the second positioning hole (7-9), and the third positioning hole (7-7) is used for fixing the third positioning shaft (5-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121448485.2U CN215865160U (en) | 2021-06-28 | 2021-06-28 | Adjustable stator corner measuring device and calibration tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121448485.2U CN215865160U (en) | 2021-06-28 | 2021-06-28 | Adjustable stator corner measuring device and calibration tool |
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| Publication Number | Publication Date |
|---|---|
| CN215865160U true CN215865160U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121448485.2U Active CN215865160U (en) | 2021-06-28 | 2021-06-28 | Adjustable stator corner measuring device and calibration tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877851A (en) * | 2022-04-14 | 2022-08-09 | 中国航发沈阳发动机研究所 | Adjustable guide vane angle measuring mechanism for compensating deformation difference of double-layer casing |
-
2021
- 2021-06-28 CN CN202121448485.2U patent/CN215865160U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877851A (en) * | 2022-04-14 | 2022-08-09 | 中国航发沈阳发动机研究所 | Adjustable guide vane angle measuring mechanism for compensating deformation difference of double-layer casing |
| CN114877851B (en) * | 2022-04-14 | 2024-02-23 | 中国航发沈阳发动机研究所 | Adjustable guide vane angle measuring mechanism for compensating deformation difference of double-layer casing |
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