CN115507722B - A device for measuring geometric dimensions of blades - Google Patents
A device for measuring geometric dimensions of blades Download PDFInfo
- Publication number
- CN115507722B CN115507722B CN202110633230.1A CN202110633230A CN115507722B CN 115507722 B CN115507722 B CN 115507722B CN 202110633230 A CN202110633230 A CN 202110633230A CN 115507722 B CN115507722 B CN 115507722B
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- cantilever
- disc
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
-
- 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
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- 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
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a device for measuring the geometric dimension of a blade, which comprises a base, a platform, a lifting mechanism and a measuring component, wherein a traction mechanism is arranged below the base, the platform is arranged on the top end surface of the base, the platform is connected with the traction mechanism through a traction rope and moves back and forth along the length direction of the base, the lifting mechanism comprises a stand column vertically connected to one side of the top of the platform, and a cantilever which is connected with the stand column in a sliding manner, the cantilever moves back and forth along the length direction of the stand column, the measuring component is arranged at the end part of the cantilever and comprises a fixed disc, a vernier caliper and a movable disc, the fixed disc is fixedly arranged at the end part of the cantilever in a fan-shaped structure, the movable disc is concentric with the fixed disc and is in rotary connection with the fixed disc, the lower end of the semicircular protractor is fixedly connected with the vernier caliper, and both ends of the vernier caliper are in sliding connection with a movable clamping plate.
Description
Technical Field
The invention relates to the technical field of measurement, in particular to a device for measuring the geometric dimension of a blade.
Background
The propeller is a key component in rotorcraft power machinery, and composite propeller blades are particularly important in the inspection process. The general blade detection method adopts a three-coordinate measuring machine, and has the advantages of high detection precision, long operation time, low efficiency and special fixture for clamping.
Therefore, how to provide a device for measuring the geometric dimensions of a blade is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention provides a device for measuring the geometric dimension of a blade, which aims to solve the technical problems in the prior art to a certain extent.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
An apparatus for measuring blade geometry, comprising:
the traction mechanism is arranged below the base;
The platform is arranged on the top end face of the base, is connected with the traction mechanism through a traction rope and moves back and forth along the length direction of the base;
The lifting mechanism comprises a stand column vertically connected to one side of the top of the platform and a cantilever connected with the stand column in a sliding manner, and the cantilever moves back and forth along the length direction of the stand column;
The measuring assembly is arranged at the end part of the cantilever and comprises a fixed disc, a vernier caliper and a movable disc, wherein the fixed disc is fixedly arranged at the end part of the cantilever in a fan-shaped structure, the movable disc and the fixed disc are concentric with each other and are rotationally connected with each other, the lower end of the semicircular protractor is fixedly connected with the vernier caliper, and two ends of the vernier caliper are respectively and slidably connected with a movable clamping plate.
Through the scheme, the platform is horizontally moved through the traction mechanism, the sliding rail and the pulleys, the supporting arm is moved up and down through the lifting mechanism, the angle measurement is carried out through the measurement assembly, the measurement of different directions and different angles on different positions of the blade is realized, the operation is convenient, and the measurement precision is high.
Further, the upper end face of the base is provided with a flat rail and a triangular sliding rail which are parallel to each other along the length direction of the base, and the bottom end of the platform is correspondingly provided with a flat groove and a dovetail groove which are matched with the flat groove and the dovetail groove.
Further, the traction mechanism comprises a first hand wheel, a drum wheel, a rotating shaft and pulleys, wherein the rotating shaft is parallel to the width direction of the base and is rotatably arranged below the base, one end of the rotating shaft is fixed with the first hand wheel, the drum wheel is arranged on the rotating shaft, the traction rope is wound on the drum wheel, the pulleys are symmetrically arranged at two ends of the base, and two ends of the traction rope respectively penetrate through the pulleys and are fixedly connected with two ends of the platform.
Further, the cantilever includes slip connecting block and support arm, the outer wall of stand is provided with vertical spout, the slip connecting block with vertical spout adaptation is connected, support arm one end with slip connecting block fixed connection, the other end is connected with to the inboard extension of stand is connected with the scale.
Further, the lifting mechanism further comprises a second hand wheel and a threaded rod, a cavity is formed in the upright post, strip-shaped through holes are formed in two opposite side walls, a mounting plate is arranged at the top end of the upright post, the threaded rod is rotatably arranged in the cavity, the top end of the threaded rod is movably connected with the mounting plate, the top end of the threaded rod is fixedly connected with the second hand wheel, a threaded connecting sleeve is sleeved on the threaded rod, and the outer wall of the threaded connecting sleeve penetrates through the strip-shaped through holes and is fixedly connected with the inner wall of the sliding connecting block.
Further, a pre-tightening screw is arranged on the sliding connecting block, a positioning hole is formed in the threaded connecting sleeve, and the pre-tightening screw passes through the positioning hole to be in butt joint with the threaded rod.
Further, the movable scale is formed by integrally connecting a semicircular protractor and a straight plate, clamping plates are respectively fixed at two ends of the straight plate, and clamping grooves are formed in the clamping plates.
Further, scale marks are arranged on the fixed disc, and when the 0-degree scale marks on the fixed disc are overlapped with the 0-degree scale marks on the semicircular protractor, the straight plate is in a horizontal state, and the rotating angle is 0 degrees.
Further, be provided with the scale mark along its length direction on the lateral wall of stand, set up on the sliding connection piece with the viewing aperture that scale mark position corresponds, just vertical installs the cursor board in the viewing aperture, the top fixedly connected with lead screw of cursor board, the lead screw runs through the top of viewing aperture extends to the top of stand, the lead screw pass through adjusting nut with the top of viewing aperture is connected.
Compared with the prior art, the invention has the advantages of simple structure, high measurement precision and very convenient use, can detect the torsion angle, the section width and thickness, the distance from the front edge and the rear edge of the section to the axis of the blade, has high working efficiency and improves the production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of the present invention.
Fig. 2 is a schematic view of a partial structure of the present invention.
Fig. 3 is a top view of the present invention.
Wherein:
1-base, 2-platform, 3-upright post, 4-fixed disk, 5-vernier caliper, 6-movable disk, 7-movable clamping plate, 8-traction rope, 11-flat rail, 12-triangle slide rail, 13-first hand wheel, 14-drum, 15-rotating shaft, 16-pulley, 21-sliding connecting block, 22-support arm, 31-second hand wheel, 32-threaded rod, 33-bar-shaped through hole, 34-vernier plate, 35-lead screw, 36-adjusting nut and 61-clamping plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The embodiment of the invention discloses a device for measuring the geometric dimension of a blade, which comprises a base 1, a platform 2, a lifting mechanism and a measuring assembly, wherein the platform 2 is arranged on the top end surface of the base 1, a flat rail 11 and a triangular sliding rail 12 which are parallel to each other are arranged on the upper end surface of the base 1 along the length direction of the upper end surface of the base, and a flat groove and a dovetail groove which are matched with the flat rail are correspondingly arranged at the bottom end of the platform 2, so that the sliding connection between the platform 2 and the base 1 is realized;
A traction mechanism is arranged below the base 1 and comprises a first hand wheel 13, a drum wheel 14, a rotating shaft 15 and pulleys 16, wherein the rotating shaft 15 is parallel to the width direction of the base 1 and is rotatably arranged below the base 1, one end of the rotating shaft 15 is fixedly provided with the first hand wheel 13, the drum wheel 14 is arranged on the rotating shaft 15, a traction rope 8 is wound on the drum wheel 14, two groups of pulleys 16 are symmetrically arranged at two ends of the base 1, and two ends of the traction rope 8 respectively penetrate through the two groups of pulleys 16 and are fixedly connected with two ends of the platform 2 so that the platform 2 moves reciprocally along the length direction of the base 1;
The lifting mechanism comprises a vertical column 3 vertically connected to one side of the top of the platform 2 and a cantilever connected with the vertical column 3 in a sliding manner, and the cantilever moves back and forth along the length direction of the vertical column 3;
The measuring assembly is arranged at the end part of the cantilever and comprises a fixed disc 4, a vernier caliper 5 and a movable disc 6, wherein the fixed disc 4 is of a fan-shaped structure and is fixedly arranged at the end part of the cantilever, the movable disc 6 is arranged at the center of a circle with the fixed disc 4 and is rotationally connected with the fixed disc 4, the movable disc 6 is formed by integrally connecting a semicircular protractor and a straight plate, clamping plates 61 are respectively fixed at two ends of the straight plate, scale marks are arranged on the fixed disc 4, when 0-degree scale marks on the fixed disc 4 are overlapped with 0-degree scale marks on the semicircular protractor, the bottom end of the straight plate is in a horizontal state, the rotating angle is 0-degree, the lower end of the straight plate is fixedly connected with the vernier caliper 5, and movable clamping plates 7 are slidably connected at two ends of the vernier caliper 5.
Specifically, the cantilever includes slide connection piece 21 and support arm 22, and the outer wall of stand 3 is provided with vertical spout, slide connection piece 21 and vertical spout adaptation are connected, support arm 22 one end and slide connection piece 21 fixed connection, and the other end extends and is connected with scale 4 to the inboard of stand 3.
In one embodiment, the lifting mechanism further comprises a second hand wheel 31 and a threaded rod 32, a cavity is formed in the upright post 3, strip-shaped through holes 33 are formed in two opposite side walls, a mounting plate is arranged at the top end of the upright post 3, the threaded rod 32 is rotatably arranged in the cavity, the top end of the threaded rod 32 is movably connected with the mounting plate, the top end of the threaded rod 32 is fixedly connected with the second hand wheel 31, a threaded connecting sleeve is sleeved on the threaded rod 32, and the outer wall of the threaded connecting sleeve penetrates through the strip-shaped through holes 33 to be fixedly connected with the inner wall of the sliding connecting block 21.
In order to further optimize the scheme, the sliding connection block 21 is provided with a pre-tightening screw, the threaded connection sleeve is provided with a positioning hole, and the pre-tightening screw passes through the positioning hole to be in butt joint with the threaded rod 32, so that the height of the sliding connection block 21 can be positioned.
In order to further optimize the scheme, the lifting size of the sliding connection block 21 is accurately controlled, scale marks are arranged on the outer side wall of the upright post 3 along the length direction of the outer side wall, an observation port corresponding to the scale marks is formed in the sliding connection block 21, a vernier plate 34 is vertically arranged in the observation port, the vernier plate 34 is provided with scale marks with higher precision, accurate numerical values are read through the cooperation of the scale marks of the upright post 3 and the vernier plate 34, a lead screw 35 is fixedly connected to the top end of the vernier plate 34, the lead screw 35 penetrates through the top of the observation port and extends to the top end of the upright post 3, the lead screw 35 is connected with the top of the observation port through an adjusting nut 36, the vernier plate 34 is vertically moved through the adjusting nut 36, and the numerical values are read out, and the vernier caliper is similar to the vernier caliper.
The method for measuring the blade angle comprises the steps of horizontally fixing the blade on a measuring platform, moving the blade on the measuring platform through a first hand wheel pair, stopping when the blade moves to a measured section, at the moment, shaking a second hand wheel to enable a sliding connecting block to move up and down along an upright post, placing an auxiliary section template on a movable scale when a vernier caliper is about to contact the surface of the measured blade, then rotating the movable scale to enable the auxiliary section template to be the same as the actual torsion angle of the section of the blade, and enabling the auxiliary section template to be attached to the blade after the angle of the section measured by the blade is reached, and at the moment, reading the angle reading on the movable scale, wherein the reading is the actual angle value of the measured blade.
The method for measuring the width of the blade comprises the steps of respectively moving the two movable clamping plates along the main scale, and when the movable clamping plates contact the width of the blade, the scales on the clamping legs are overlapped with the scales on the main scale, and reading the scales of the main scale, namely the width value of the measured blade. Similarly, the width value detection method of other sections of the blade is the same.
The invention has simple structure, high measurement precision, convenient use, high working efficiency, low cost and short manufacturing period, can test the torsion angle, the section width and the thickness of the blade, the distance between the front edge and the rear edge of the section and the axis of the blade, and meets the use requirement of new product development.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. An apparatus for measuring blade geometry, comprising:
The device comprises a base (1), wherein a traction mechanism is arranged below the base (1);
The device comprises a base (1) and a platform (2), wherein the platform (2) is arranged on the top end surface of the base (1), the platform (2) is connected with a traction mechanism through a traction rope (8) and moves back and forth along the length direction of the base (1), the traction mechanism comprises a first hand wheel (13), a drum wheel (14), a rotating shaft (15) and pulleys (16), the rotating shaft (15) is parallel to the width direction of the base (1) and rotatably arranged below the base (1), one end of the rotating shaft (15) is fixedly provided with the first hand wheel (13), the drum wheel (14) is arranged on the rotating shaft (15), the traction rope (8) is wound on the drum wheel (14), two groups of pulleys (16) are symmetrically arranged at two ends of the base (1), and two ends of the traction rope (8) respectively penetrate through two groups of pulleys (16) and are fixedly connected with two ends of the platform (2);
The lifting mechanism comprises a stand column (3) vertically connected to one side of the top of the platform (2), and a cantilever which is in sliding connection with the stand column (3), and moves back and forth along the length direction of the stand column (3);
The measuring assembly is arranged at the end part of the cantilever and comprises a fixed disc (4), a vernier caliper (5) and a movable disc (6), wherein the fixed disc (4) is fixedly arranged at the end part of the cantilever in a fan-shaped structure, the movable disc (6) is concentric with the fixed disc (4) and is rotationally connected with the fixed disc (4), the lower end of the movable disc (6) is fixedly connected with the vernier caliper (5), and two ends of the vernier caliper (5) are slidably connected with movable clamping plates (7).
2. The device for measuring the geometrical dimensions of the blade according to claim 1, characterized in that the upper end surface of the base (1) is provided with a flat rail (11) and a triangular sliding rail (12) which are parallel to each other along the length direction of the upper end surface, and the bottom end of the platform (2) is correspondingly provided with a flat groove and a dovetail groove which are matched with the flat groove and the dovetail groove.
3. Device for measuring the geometrical dimensions of a blade according to claim 1, characterized in that the cantilever comprises a sliding connection block (21) and a support arm (22), the outer wall of the upright (3) is provided with a vertical chute, the sliding connection block (21) is connected with the vertical chute in an adapted manner, one end of the support arm (22) is fixedly connected with the sliding connection block (21), and the other end extends towards the inner side of the upright (3) and is connected with the dial (4).
4. The device for measuring the geometrical dimensions of the blade according to claim 3, wherein the lifting mechanism further comprises a second hand wheel (31) and a threaded rod (32), a cavity is formed in the upright post (3), strip-shaped through holes (33) are formed in two opposite side walls, a mounting plate is arranged at the top end of the upright post (3), the threaded rod (32) is rotatably arranged in the cavity, the top end of the threaded rod is movably connected with the mounting plate, the top end of the threaded rod (32) is fixedly connected with the second hand wheel (31), a threaded connecting sleeve is sleeved on the threaded rod (32), and the outer wall of the threaded connecting sleeve penetrates through the strip-shaped through holes (33) to be fixedly connected with the inner wall of the sliding connecting block (21).
5. Device for measuring the geometry of a blade according to claim 4, characterized in that the sliding connection block (21) is provided with a pre-tightening screw, the threaded connection sleeve is provided with a positioning hole, and the pre-tightening screw is abutted with the threaded rod (32) through the positioning hole.
6. Device for measuring the geometry of a blade according to claim 1, characterized in that said moving dial (6) is integrally connected by a semicircular protractor and a straight plate, the two ends of which are respectively fixed with clamping plates (61).
7. Device for measuring the geometry of a blade according to claim 6, characterized in that the scale mark is provided on the scale disc (4), and that the straight plate is in a horizontal state and rotated by 0 ° when the 0 ° scale mark on the scale disc (4) coincides with the 0 ° scale mark on the semi-circular protractor.
8. The device for measuring the geometrical dimensions of the blade according to claim 5, characterized in that scale marks are arranged on the outer side wall of the upright post (3) along the length direction of the outer side wall, an observation port corresponding to the scale marks is formed in the sliding connection block (21), a cursor plate (34) is vertically arranged in the observation port, a screw rod (35) is fixedly connected to the top end of the cursor plate (34), the screw rod (35) penetrates through the top of the observation port and extends to the top end of the upright post (3), and the screw rod (35) is connected with the top of the observation port through an adjusting nut (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110633230.1A CN115507722B (en) | 2021-06-07 | 2021-06-07 | A device for measuring geometric dimensions of blades |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110633230.1A CN115507722B (en) | 2021-06-07 | 2021-06-07 | A device for measuring geometric dimensions of blades |
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| Publication Number | Publication Date |
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| CN115507722A CN115507722A (en) | 2022-12-23 |
| CN115507722B true CN115507722B (en) | 2025-01-14 |
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| CN202110633230.1A Active CN115507722B (en) | 2021-06-07 | 2021-06-07 | A device for measuring geometric dimensions of blades |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116294903A (en) * | 2022-12-30 | 2023-06-23 | 上海煤科检测技术有限公司 | Coal-winning machine helical drum test equipment |
| CN117416528B (en) * | 2023-12-19 | 2024-02-09 | 溧阳气动创新研究院有限公司 | Measuring device for rotor manufacturing |
| CN118904418B (en) * | 2024-07-22 | 2026-01-27 | 哈尔滨工业大学 | Control device, control method and control system for lifting coplanar copper electrode |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215261543U (en) * | 2021-06-07 | 2021-12-21 | 惠阳航空螺旋桨有限责任公司 | A device for measuring blade geometry |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210082U (en) * | 1986-12-13 | 1987-10-07 | 清华大学 | Multifunctional hydraulic triaxial instrument |
| CN201693927U (en) * | 2009-11-27 | 2011-01-05 | 中国直升机设计研究所 | Chord line drawing tool for helicopter blade |
| KR101422183B1 (en) * | 2013-02-26 | 2014-07-22 | 삼성중공업 주식회사 | The measuring apparatus and method for a propeller |
| CN104501690B (en) * | 2014-12-14 | 2019-03-01 | 惠阳航空螺旋桨有限责任公司 | A kind of tool measuring blade chord length |
| CN105651150B (en) * | 2015-12-28 | 2018-05-25 | 中车齐齐哈尔车辆有限公司 | Measuring appliance |
| CN108072345B (en) * | 2016-11-14 | 2020-07-03 | 江西昌河航空工业有限公司 | Comprehensive measuring platform for size of paddle |
| CN109579671A (en) * | 2018-11-15 | 2019-04-05 | 中国直升机设计研究所 | A kind of blade pretwist angular measurement tooling and measurement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215261543U (en) * | 2021-06-07 | 2021-12-21 | 惠阳航空螺旋桨有限责任公司 | A device for measuring blade geometry |
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