CN216012074U - Device for measuring blade installation angle - Google Patents
Device for measuring blade installation angle Download PDFInfo
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- CN216012074U CN216012074U CN202121165180.0U CN202121165180U CN216012074U CN 216012074 U CN216012074 U CN 216012074U CN 202121165180 U CN202121165180 U CN 202121165180U CN 216012074 U CN216012074 U CN 216012074U
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Abstract
The utility model discloses a device for measuring the installation angle of a blade, which comprises a support, a centering component and an angular direction fixing component, and further comprises a mounting seat, a measuring gauge and a measuring gauge, wherein the mounting seat is fixedly arranged on the support, the measuring gauge is arranged at the upper part of the mounting seat, a measuring head of the measuring gauge protrudes out of the outer wall surface of the mounting seat, the measuring gauge is hinged at the lower part of the mounting seat, the measuring gauge comprises a first measuring rod and a second measuring rod, the first measuring rod and the second measuring rod extend outwards from a hinged part, the first measuring rod and the second measuring rod are arranged in an intersecting manner, the first measuring rod is used for abutting against the blade to be measured and driving the second measuring rod to synchronously rotate around a hinged axis in the abutting process, and the second measuring rod rotates around the hinged axis and pushes the measuring head of the measuring gauge so as to enable the gauge head of the measuring gauge to jump. The device for measuring the blade installation angle is convenient to operate and can be used for conveniently measuring the blade installation angle.
Description
Technical Field
The utility model relates to the technical field of measuring clamps, in particular to a device for measuring the installation angle of a blade.
Background
As shown in fig. 1, 2, and 3, the stator ring assembly includes a stator ring and blades arranged at an installation angle, and the plurality of blades are provided on a circumferential inner wall surface of the stator ring at intervals in a circumferential direction of the stator ring. The blade mounting angle is a reference index for ensuring that the blade is mounted at a given mounting position according to a design drawing in the blade mounting process, whether the blade is mounted correctly or not is checked, and whether the blade mounting angle is qualified or not can be checked.
The existing method for measuring the installation angle alpha of the blade on the target diameter of the stator ring by adopting a three-coordinate measuring method has the defects of large operation difficulty and large installation angle measurement difficulty when the three-coordinate measuring method is adopted due to the complex structure of the blade profile and high concentration between adjacent blades; secondly, a three-coordinate operator needs to have a certain theoretical basis, including the need of knowing the structure of the blade and the correct position of the blade installation angle on the target diameter, the whole process is long in time consumption, and the measurement efficiency is low.
SUMMERY OF THE UTILITY MODEL
The device for measuring the blade installation angle provided by the utility model is used for solving the technical problems of high difficulty and low measurement efficiency of the conventional blade installation angle measurement.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a device for measuring the installation angle of blades comprises a stator ring and blades arranged at installation angles, wherein a plurality of blades are arranged on the circumferential inner wall surface of the stator ring at intervals along the circumferential direction of the stator ring, the stator ring comprises a support used for supporting on the surface of the stator ring, a centering component arranged on the support and used for centering the support so as to ensure that the theoretical circular axis of the support coincides with the axial line of the stator ring, and a fixed angular component arranged on the support and used for matching with the blades to angularly position the support, the device for measuring the installation angle of the blades further comprises a mounting seat, a measuring meter and a measuring gauge, the mounting seat is fixedly arranged on the support, the measuring meter is arranged on the upper part of the mounting seat, a measuring head of the measuring meter is arranged on the outer wall surface of the mounting seat in a protruding manner, the measuring gauge is hinged and arranged on the lower part of the mounting seat, and the measuring gauge comprises a first measuring rod and a second measuring rod which extend outwards from a hinge part, the first measuring rod and the second measuring rod are arranged in an intersecting mode, the first measuring rod is used for abutting against a measured blade and driving the second measuring rod to rotate synchronously around a hinge axis in the abutting process, and the second measuring rod rotates around the hinge axis and pushes a measuring head of the measuring meter so as to enable the meter head of the measuring meter to jump.
Furthermore, the centering assembly comprises positioning pins arranged on the lower surface of the support, the positioning pins are arranged on a concentric circle which takes the theoretical circular center line of the support as the center line, at least two positioning pins are arranged at intervals along the circumferential direction of the concentric circle, and the theoretical circular center line of the support is coincided with the axial center line of the stator ring through the abutting joint of all the positioning pins along the radial direction of the stator ring and the circumferential outer wall surface of the stator ring.
Furthermore, the fixed angle is to the subassembly including locating the angle locating plate on the lower surface of support, the first end and the support fixed connection of angle locating plate, the second end of angle locating plate is equipped with the draw-in groove, and then carries out the angle location to the support through the cooperation of the draw-in groove with the top edge of the lower group blade of blade one side under being surveyed.
Furthermore, the second measuring rod and the first measuring rod are arranged perpendicularly to each other, the measuring gauge is L-shaped, and the corner part of the measuring gauge is hinged to the mounting seat.
Further, the support includes first extension board, the concave groove of dodging that is equipped with in middle part of first extension board, the mount pad includes fixed connection's first mounting panel, second mounting panel and third mounting panel, the first end of first mounting panel is fixed to be located on the first extension board, the second end orientation of first mounting panel is kept away the direction in groove and is extended, the first end of second mounting panel is fixed to be located on the second end of first mounting panel, the second end of second mounting panel upwards extends and is used for installing the gauge, the gauge head of gauge stick salient in the lower surface of second mounting panel and towards the setting of second measuring staff, the first end of third mounting panel is fixed to be located on the second end of first mounting panel, the second end of third mounting panel stretches into and is used for articulating with the measuring gauge to keeping away the inslot.
Furthermore, the third mounting plate is provided with an auxiliary positioning plate extending downwards, the auxiliary positioning plate is arranged on one side of the measuring gauge and is simultaneously overlapped on the upper edge and the lower edge of the measured blade through the auxiliary positioning plate, so that the auxiliary positioning plate and the angular positioning part are matched together to limit the swing of the support along the circumferential direction.
Further, the first mounting plate is fixedly connected with the support through a fastener.
Furthermore, the measuring meter adopts a dial indicator.
Furthermore, the support also comprises a second support plate, the lower surface of the second support plate is arranged in parallel with the lower surface of the first support plate, and the second support plate and the first support plate are combined to form a T-shaped integral structure.
Further, the device for measuring the blade installation angle further comprises a surface fitting, and the surface fitting angle of the surface fitting is beta.
The utility model has the following beneficial effects:
the device for measuring the installation angle of the blade comprises a support, a centering assembly, an angle orientation assembly, an installation seat, a measuring meter and a measuring gauge. When the installation angle of the blade is measured to be qualified, the support is supported on the surface of the stator ring for axial positioning, the centering assembly is matched with the circumferential outer wall surface of the stator ring so that the theoretical circular center line of the support is coincided with the axial center line of the stator ring, and the angular positioning is carried out on the support through the matching of the fixed-angle directional assembly and the upper edge of the lower group of blades on one side of the blade to be measured; the measuring gauge is hinged to the mounting base, the first measuring rod of the measuring gauge is used for abutting against the measured blade and driving the second measuring rod to rotate around the hinge axis, the second measuring rod rotates around the hinge axis and presses the measuring head of the measuring gauge to enable the gauge head of the measuring gauge to jump, and finally the gauge head of the measuring gauge jumps to measure whether the mounting angle of the blade is qualified or not. According to the device for measuring the blade installation angle, whether the blade installation angle is qualified can be judged only by enabling the first measuring rod of the measuring gauge to abut against the blade to be measured and observing the jumping value of the measuring gauge after the measuring device is matched and positioned with the stator assembly through operation of an operator, and the device is simple to operate and convenient to use.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural diagram of a part under test according to a preferred embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a part under test according to a preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A in FIG. 2;
FIG. 4 is a schematic view of the structure of the apparatus for measuring the blade installation angle according to the preferred embodiment of the present invention in use;
FIG. 5 is a schematic view of an apparatus for measuring a blade installation angle according to a preferred embodiment of the present invention;
FIG. 6 is a cross-sectional view taken at B-B of FIG. 5;
FIG. 7 is a perspective view of a facing member of the apparatus for measuring a blade installation angle according to the preferred embodiment of the present invention;
fig. 8 is a schematic structural view of a surface member of the apparatus for measuring a blade installation angle according to the preferred embodiment of the present invention.
Illustration of the drawings:
100. means for measuring the blade mounting angle; 10. a support; 11. a first support plate; 111. an avoidance groove; 12. a second support plate; 20. a centering assembly; 21. positioning pins; 30. a constant angular orientation component; 40. a mounting seat; 41. a first mounting plate; 42. a second mounting plate; 43. a third mounting plate; 431. an auxiliary positioning plate; 50. measuring a gauge; 51. a first measuring bar; 52. a second measuring bar; 60. and (6) checking the watch piece.
Detailed Description
The embodiments of the utility model will be described in detail below with reference to the accompanying drawings, but the utility model can be embodied in many different forms, which are defined and covered by the following description.
FIG. 1 is a schematic structural diagram of a part under test according to a preferred embodiment of the present invention; FIG. 2 is a schematic cross-sectional view of a part under test according to a preferred embodiment of the present invention; FIG. 3 is a cross-sectional view A-A in FIG. 2; FIG. 4 is a schematic view of the structure of the apparatus for measuring the blade installation angle according to the preferred embodiment of the present invention in use; FIG. 5 is a schematic view of an apparatus for measuring a blade installation angle according to a preferred embodiment of the present invention; FIG. 6 is a cross-sectional view taken at B-B of FIG. 5; FIG. 7 is a perspective view of a facing member of the apparatus for measuring a blade installation angle according to the preferred embodiment of the present invention; fig. 8 is a schematic structural view of a surface member of the apparatus for measuring a blade installation angle according to the preferred embodiment of the present invention.
As shown in fig. 4, the device 100 for measuring the blade installation angle of the present embodiment includes a stator ring and blades arranged at an installation angle, wherein a plurality of blades are arranged on the inner wall surface of the circumference of the stator ring at intervals along the circumferential direction of the stator ring, the stator ring comprises a support 10 for supporting on the surface of the stator ring, a centering assembly 20 arranged on the support 10 for centering the support 10 so that the theoretical circular center line of the support 10 coincides with the axial center line of the stator ring, and a fixed angular direction assembly 30 arranged on the support 10 for cooperating with the blades to angularly position the support 10, the device 100 for measuring the blade installation angle further comprises an installation seat 40, a measuring meter and a measuring gauge 50, the installation seat 40 is fixedly arranged on the support 10, the measuring meter is arranged on the upper portion of the installation seat 40, the measuring head of the measuring meter is arranged protruding from the outer wall surface of the installation seat 40, the measuring gauge 50 is hinged on the lower portion of the installation seat 40, the measuring gauge 50 comprises a first measuring rod 51 and a second measuring rod 52 which extend outwards from the hinge part, the first measuring rod 51 and the second measuring rod 52 are arranged in an intersecting manner, the first measuring rod 51 is used for abutting against a measured blade and driving the second measuring rod 52 to synchronously rotate around a hinge axis in the abutting process, and the second measuring rod 52 rotates around the hinge axis and pushes a measuring head of the measuring meter so as to enable the meter head of the measuring meter to jump.
The device 100 for measuring the blade installation angle of the present invention comprises a support 10, a centering assembly 20, a fixed angle assembly 30, a mounting seat 40, a measuring gauge and a measuring gauge 50. When the installation angle of the blade is qualified, the support 10 is supported on the surface of a stator ring for axial positioning, the centering assembly 20 is matched with the circumferential outer wall surface of the stator ring so that the theoretical circular axis of the support 10 is superposed with the axial axis of the stator ring, and the angular positioning assembly 30 is matched with the upper edge of the lower group of blades on one side of the blade to be measured to perform angular positioning on the support 10; the measuring gauge 50 is hinged to the mounting base 40, a first measuring rod 51 of the measuring gauge 50 is used for abutting against a measured blade and driving a second measuring rod 52 to rotate around a hinge axis, the second measuring rod 52 rotates around the hinge axis and presses a measuring head of the measuring gauge to enable the gauge head of the measuring gauge to jump, and finally whether the mounting angle of the blade is qualified is measured by observing the jump of the gauge head of the measuring gauge. According to the device 100 for measuring the blade installation angle, whether the blade installation angle is qualified can be judged only by enabling the first measuring rod 51 of the measuring gauge 50 to be abutted against the measured blade and observing the jumping value of the measuring gauge after the measuring device is matched and positioned with the stator assembly through operation of an operator, and the device is simple to operate and convenient to use.
Referring to fig. 5, in order to measure the installation angle of the vane at a target diameter, the centering assembly 20 is arranged to determine that the positioning center is the same as the center position of the stator ring even though the theoretical circular center line of the support 10 coincides with the axial center line of the stator ring, and then the radial distance between the measuring point of the first measuring rod 51 of the measuring gauge 50 and the theoretical circular center line is determined by the target diameter, thereby determining the installation position of the measuring gauge 50 relative to the support 10.
Further, in order to facilitate rapid centering in operation, the centering assembly 20 includes positioning pins 21 disposed on the lower surface of the support 10, the positioning pins 21 are located on a concentric circle using a theoretical circular center line of the support 10 as a center line, at least two positioning pins 21 are arranged at intervals along the circumferential direction of the concentric circle, and all the positioning pins 21 abut against the circumferential outer wall surface of the stator ring along the radial direction of the stator ring, so that the theoretical circular center line of the support 10 coincides with the axial center line of the stator ring. Alternatively, all of the positioning pins 21 are located on one side of the concentric circular side semicircular ring. Alternatively, to avoid interference, the number of the positioning pins 21 is two.
Further, the fixed angle direction assembly 30 includes an angle positioning plate disposed on the lower surface of the support 10, a first end of the angle positioning plate is fixedly connected to the support 10, a second end of the angle positioning plate is provided with a clamping groove, and the clamping groove is matched with the upper edge of the lower group of blades on one side of the measured blade to further perform angle positioning on the support 10. Optionally, the clamping groove is a triangular groove arranged towards the lower set of blades.
Preferably, in order to improve the positioning accuracy, the included angle between the middle section of the angular positioning plate and the central line of the theoretical circular centerline is beta.
Further, in order to improve the measurement accuracy, the second measuring rod 52 and the first measuring rod 51 are arranged perpendicular to each other, the measuring gauge 50 is L-shaped, and the corner portion of the measuring gauge 50 is hinged to the mounting base 40.
Further, referring to fig. 6, the support 10 includes a first supporting plate 11, an avoiding groove 111 is concavely disposed in a middle portion of the first supporting plate 11, the mounting seat 40 includes a first mounting plate 41, a second mounting plate 42 and a third mounting plate 43, which are fixedly connected, a first end of the first mounting plate 41 is fixedly disposed on the first supporting plate 11, a second end of the first mounting plate 41 extends toward the avoiding groove 111, a first end of the second mounting plate 42 is fixedly disposed on a second end of the first mounting plate 41, a second end of the second mounting plate 42 extends upward for mounting a measuring gauge, a measuring head of the measuring gauge protrudes from a lower surface of the second mounting plate 42 and is disposed toward a second measuring rod 52, a first end of the third mounting plate 43 is fixedly disposed on the second end of the first mounting plate 41, and a second end of the third mounting plate 43 extends into the avoiding groove 111 for being hinged to the measuring gauge 50. The probe of the meter is pushed by the second measuring rod 52 rotating about the hinge axis to cause the probe to bounce.
Further, the third mounting plate 43 is provided with an auxiliary positioning plate 431 extending downward, the auxiliary positioning plate 431 is provided on one side of the measuring gauge 50, and the auxiliary positioning plate 431 is simultaneously arranged on the upper edge and the lower edge of the measured blade, so that the auxiliary positioning plate 431 cooperates with the angular positioning portion to limit the swing of the support 10 along the circumferential direction. Optionally, in order to make the auxiliary positioning plate 431 fit and abut against the edge of the measured blade, the angle between the lower surface of the auxiliary positioning plate 431 and the axial section of the mounting seat 40 is α.
Further, the first mounting plate 41 is fixedly connected to the support 10 by a fastener. The fastening member may be a fastening bolt, a fastening screw, and a fastening clip. Alternatively, the first mounting plate 41 and the first support plate 11 are fixedly connected by fastening bolts. Alternatively, the measuring gauge may be a dial gauge, which may be a dial gauge.
Preferably, the angle between the central axis of the meter and the axial section of the mounting seat 40 is β. In the present embodiment, β and α are complementary angles.
Further, the support 10 further comprises a second support plate 12, the lower surface of the second support plate 12 is arranged in parallel with the lower surface of the first support plate, and the second support plate 12 and the first support plate 11 are combined to form a T-shaped integral structure. Through setting up the both sides of first extension board 11 and supporting respectively on the surface of stator ring, one side that second extension board 12 kept away from first extension board 11 supports on the surface of stator ring, makes support 10 and stator ring pass through three plane contact, avoids support 10 swing, has improved the accuracy when measuring.
Further, referring to fig. 7 and 8, the apparatus 100 for measuring a blade installation angle further includes a pair of surfaces 60, and a pair of angles β is defined for the pair of surfaces 60. Optionally, the counter 60 is mounted on the support 10 at an angle β to the counter surface for contacting the gauge 50.
It will be appreciated that the present invention is described in terms of measuring the angle of installation of a blade at a target diameter. Alternatively, the blade mounting angle α is 39.22 ° ± 1 °, β and α are complementary angles, and the target diameter is 77 mm.
The design principle of the apparatus 100 for measuring the blade installation angle of the present invention is as follows: conversion measurement is adopted, trigonometric function relation and a lever principle are applied, the change range of the installation angle is deduced through the jumping of a measuring head of a measuring meter and formula conversion; the derivation process is as follows: from the trigonometric function relationship, it can be deduced that the following relationship exists between the blade mounting angle and the reading of the measuring gauge: in the design, C is 25.35, the distance is obtained by actually measuring and mapping the distance in the correct model theory, and the corresponding angle changes by 0 degree and 2.7' by taking the formula as an example when the reading of the measuring meter changes by 0.02 mm.
The device 100 for measuring the blade installation angle of the present invention measures as follows:
firstly, checking a meter, namely checking the meter by using a meter checking piece 60, zeroing a measuring meter, and setting a certain meter pressing quantity on a meter head; then, the support 10 is supported on a part, the two positioning pins 21 are contacted with the outer circle of the stator ring for centering, the angular positioning device is used for angular positioning, the first measuring rod 51 of the measuring gauge 50 is contacted with the upper edge of the blade, so that the measuring gauge 50 rotates around the hinge axis, the second measuring rod 52 of the measuring gauge 50 is contacted with the measuring head of the measuring gauge, the measuring head is driven to move, the jumping value of the measuring gauge is obtained, and the angle value is deduced through formula conversion so as to be judged.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A device for measuring the installation angle of a blade, a stator ring component comprises a stator ring and blades arranged in an installation angle, a plurality of blades are arranged on the circumferential inner wall surface of the stator ring at intervals along the circumferential direction of the stator ring, the device is characterized in that,
comprises a support (10) used for supporting on the surface of a stator ring, a centering component (20) arranged on the support (10) and used for centering the support (10) so as to enable the theoretical circular center line of the support (10) to coincide with the axial center line of the stator ring, and a fixed angle component (30) arranged on the support (10) and used for matching with a blade to angularly position the support (10),
the device for measuring the blade installation angle further comprises an installation seat (40), a measuring meter and a measuring gauge (50), wherein the installation seat (40) is fixedly arranged on the support (10), the measuring meter is arranged at the upper part of the installation seat (40), a measuring head of the measuring meter is arranged to protrude out of the outer wall surface of the installation seat (40),
the measuring gauge (50) is hinged to the lower portion of the mounting base (40), the measuring gauge (50) comprises a first measuring rod (51) and a second measuring rod (52) which extend outwards from a hinged portion, the first measuring rod (51) and the second measuring rod (52) are arranged in an intersecting mode, the first measuring rod (51) is used for abutting against a measured blade and driving the second measuring rod (52) to synchronously rotate around a hinged axis in the abutting process, and the second measuring rod (52) rotates around the hinged axis and pushes a measuring head of the measuring gauge to enable the gauge head of the measuring gauge to bounce.
2. The apparatus for measuring a blade installation angle according to claim 1,
the centering assembly (20) comprises positioning pins (21) arranged on the lower surface of the support (10), the positioning pins (21) are positioned on a concentric circle which takes the theoretical circular center line of the support (10) as the center line, at least two positioning pins (21) are arranged at intervals along the circumferential direction of the concentric circle,
all the positioning pins (21) are abutted against the circumferential outer wall surface of the stator ring along the radial direction of the stator ring, so that the theoretical circular axis of the support (10) is superposed with the axial axis of the stator ring.
3. The apparatus for measuring a blade installation angle according to claim 1,
the fixed angle direction component (30) comprises an angle positioning plate arranged on the lower surface of the support (10), the first end of the angle positioning plate is fixedly connected with the support (10), the second end of the angle positioning plate is provided with a clamping groove,
the clamping grooves are matched with the upper edges of the lower group of blades on one side of the blade to be measured, so that the support (10) is positioned angularly.
4. The apparatus for measuring a blade installation angle according to any one of claims 1 to 3,
the second measuring rod (52) and the first measuring rod (51) are arranged perpendicular to each other,
the measuring gauge (50) is L-shaped, and the corner part of the measuring gauge (50) is hinged to the mounting seat (40).
5. The apparatus for measuring a blade installation angle according to claim 4,
the support (10) comprises a first support plate (11), the middle part of the first support plate (11) is concavely provided with an avoidance groove (111),
the mounting seat (40) comprises a first mounting plate (41), a second mounting plate (42) and a third mounting plate (43) which are fixedly connected, the first end of the first mounting plate (41) is fixedly arranged on the first support plate (11), the second end of the first mounting plate (41) extends towards the direction of the avoidance groove (111),
the first end of the second mounting plate (42) is fixedly arranged on the second end of the first mounting plate (41), the second end of the second mounting plate (42) extends upwards for mounting the measuring meter, a measuring head of the measuring meter protrudes out of the lower surface of the second mounting plate (42) and is arranged towards the second measuring rod (52),
the first end of third mounting panel (43) is fixed locate the second of first mounting panel (41) is served, the second end of third mounting panel (43) stretch into to dodge in groove (111) be used for with measuring gauge (50) are articulated.
6. The apparatus for measuring a blade installation angle according to claim 5,
an auxiliary positioning plate (431) extending downwards is arranged on the third mounting plate (43), the auxiliary positioning plate (431) is arranged on one side of the measuring gauge (50),
the auxiliary positioning plate (431) is simultaneously overlapped on the upper edge and the lower edge of the blade to be measured, so that the auxiliary positioning plate (431) is matched with the angular positioning part together to limit the swing of the support (10) along the circumferential direction.
7. The apparatus for measuring a blade installation angle according to claim 5,
the first mounting plate (41) is fixedly connected with the support (10) through a fastener.
8. The apparatus for measuring a blade installation angle according to claim 6,
the measuring meter adopts a dial indicator.
9. The apparatus for measuring a blade installation angle according to claim 5,
the support (10) further comprises a second support plate (12), the lower surface of the second support plate (12) is arranged flush with the lower surface of the first support plate,
the second support plate (12) and the first support plate (11) are combined to form a T-shaped integral structure.
10. The apparatus for measuring a blade installation angle according to claim 1,
the device for measuring the blade installation angle further comprises a surface aligning piece (60), and the surface aligning angle of the surface aligning piece (60) is beta.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121165180.0U CN216012074U (en) | 2021-05-27 | 2021-05-27 | Device for measuring blade installation angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121165180.0U CN216012074U (en) | 2021-05-27 | 2021-05-27 | Device for measuring blade installation angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216012074U true CN216012074U (en) | 2022-03-11 |
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ID=80585263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121165180.0U Active CN216012074U (en) | 2021-05-27 | 2021-05-27 | Device for measuring blade installation angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216012074U (en) |
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2021
- 2021-05-27 CN CN202121165180.0U patent/CN216012074U/en active Active
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Address after: 412000 No. 1018, Hangfei Avenue, Lusong District, Zhuzhou City, Hunan Province Patentee after: Hunan Xingtu Aerospace and Spacecraft Manufacturing Co.,Ltd. Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: AVIC POWER ZHUZHOU AVIATION PARTS MANUFACTURING Co.,Ltd. |