CN104669153B - Blade torsional angle measurement fixture and method - Google Patents
Blade torsional angle measurement fixture and method Download PDFInfo
- Publication number
- CN104669153B CN104669153B CN201310628413.XA CN201310628413A CN104669153B CN 104669153 B CN104669153 B CN 104669153B CN 201310628413 A CN201310628413 A CN 201310628413A CN 104669153 B CN104669153 B CN 104669153B
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- China
- Prior art keywords
- blade
- torsional angle
- positioning support
- fixture
- anchor point
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
Abstract
The invention belongs to the field of composite material blade torsional angle measurement and relates to a blade torsional angle measurement method and a blade torsional angle measurement fixture. According to the blade torsional angle measurement fixture, 5 positioning points of an internal profile are attached to the profile of a blade, so that a left clamping plate is parallel to the chord of the blade, and the included angle between the clamping plate and a vertical suspension is identical to a torsional angle; a support perpendicular to the right clamping plate is arranged on the right clamping plate, and the torsional angle can be measured simply by mounting an optical clinometer on the support.
Description
Technical field
The invention belongs to composite material blade torsional angle e measurement technology, it is related to a kind of blade torsional angle and surveys
Amount method and a kind of fixture of blade torsional angle measurement.
Background technology
The torsional angle of blade refers to horizontal angle at the string of a musical instrument of blade wing body and blade bushing.
Due to the aerodynamic characteristic of composite material blade and the needs of kinematic parameter, blade is from blade root
There is the torsional angle of a gradual change to blade tip, whether the torsional angle in order to detect blade product meets figure
Paper designs it is necessary to detect the torsional angle at the different sections of blade.Due to blade wing body
Type face is more complicated curved surface, with the torsion of existing detection meanss and detection tool detection blade
Angle is just relatively difficult, therefore need to design a kind of new characterization processes method and detection instrument.
Content of the invention
The purpose of the present invention is：There is provided a kind of fairly simple, and at energy accurate measurement, blade is turned round
The measuring method at angle and measured material.
The technical scheme is that：Blade torsional angle measured material, installs locating clip including blade
Tool and measured material, wherein, blade is installed positioning fixture and is clamped by bracket unit, propeller shank
Termination and blade afterbody positioning support composition.Bracket unit by front and back point-blank two
Individual type frame composition, a type frame is used for installing propeller shank clamping termination, another one type frame use
In installation blade afterbody positioning support.Propeller shank clamping termination is by positioning support and two positioning
Pin bank becomes, and wherein the location-plate of positioning support is perpendicular to horizontal line.Measured material by right clamp and
Left clamp composition.3 anchor points contacting with blade are had, respectively on right clamp inner mold face：
On type face anchor point and one before one blade leading edge string of a musical instrument summit anchor point, a top airfoil
Aerofoil rear profile face anchor point.2 anchor points being contacted with blade are had on left clamp, respectively：
Type face anchor point and a lower aerofoil rear profile face anchor point before one lower aerofoil, when fixture inner mold
5 anchor points in face fit simultaneously blade profile when, on right clamp measurement bearing optics incline
Tiltedly instrument installed surface is vertical with the blade string of a musical instrument.
Blade torsional angle measuring method, comprises the following steps：
The first step, is passed through the bush hole of blade, the root of blade is fixed using two alignment pins
On the location-plate of the positioning support clamping termination in propeller shank, location-plate is perpendicular to horizontal line；
Second step, blade afterbody is fixed on blade afterbody positioning support with its naturalness；
3rd step, installs measured material at certain section of blade, will ensure right card during installation
Five anchor points of plate and left clamp are fitted blade profile simultaneously；
4th step, optical clinometer is placed on the measurement bearing on right clamp, reads optics
The reading of dipmeter is the measured value of torsional angle.
It is an advantage of the invention that：Blade torsional angle measuring method of the present invention and blade torsional angle measurement folder
Tool can fast and accurately measure blade arbitrary section torsional angle numerical value it is ensured that measurement standard
Exactness, improves work efficiency, reduces production cost.
Brief description
Fig. 1 is the schematic diagram that blade installs positioning fixture；
Fig. 2 is the schematic diagram of the propeller shank clamping termination that blade installs positioning fixture；
Fig. 3 is the schematic diagram of the blade afterbody location and installation bearing that blade installs positioning fixture
Fig. 4 is the schematic diagram of measured material.
Specific embodiment
The principle of measured material：5 anchor points in fixture inner mold face are made to fit with blade profile,
Therefore the right clamp of fixture is parallel with the string of a musical instrument of blade, so this clamp with the angle of vertical suspension wire is
Equal with torsional angle, a bearing vertical with it is done on right clamp, is installed using optical clinometer
Torsional angle can be measured on bearing.
Blade torsional angle measured material, installs positioning fixture and measured material including blade, wherein,
Blade installs positioning fixture by bracket unit, propeller shank clamping termination and blade afterbody positioning
Bearing forms.Bracket unit is made up of two type frame point-blank in front and back, a type frame
Clamp termination for installing propeller shank, another one type frame is used for installing blade afterbody positioning
Seat.Propeller shank clamping termination is made up of positioning support and two alignment pins, wherein positioning support
Location-plate perpendicular to horizontal line.Measured material is made up of right clamp and left clamp.In right clamp
3 anchor points being contacted with blade are had on type face, respectively：One blade leading edge string of a musical instrument summit
Type face anchor point and a top airfoil rear profile face anchor point before anchor point, a top airfoil.Left
2 anchor points being contacted with blade are had on clamp, respectively：Type face positioning before one lower aerofoil
Point and a lower aerofoil rear profile face anchor point, when 5 anchor points in fixture inner mold face paste simultaneously
The optical clinometer installed surface and the blade string of a musical instrument that measure bearing when closing blade profile, on right clamp
Vertically.
Blade torsional angle measuring method, comprises the following steps：
The first step, is passed through the bush hole of blade, the root of blade is fixed using two alignment pins
On the location-plate of the positioning support clamping termination in propeller shank, location-plate is perpendicular to horizontal line；
Second step, blade afterbody is fixed on blade afterbody positioning support with its naturalness；
3rd step, installs measured material at certain section of blade, will ensure right card during installation
Five anchor points of plate and left clamp are fitted blade profile simultaneously；
4th step, optical clinometer is placed on the measurement bearing on right clamp, reads optics
The reading of dipmeter is the measured value of torsional angle.
Claims (2)
1. blade torsional angle measured material, is characterized in that, installs positioning fixture and survey including blade
Amount fixture, wherein, blade install positioning fixture by bracket unit, propeller shank clamping termination with
And blade afterbody positioning support composition；Bracket unit is by two type frame point-blank in front and back
Composition, type frame is used for installing propeller shank clamping termination, another one type frame is used for installing
Blade afterbody positioning support；Propeller shank clamping termination is by positioning support and two positioning pin bank
Become, wherein the location-plate of positioning support is perpendicular to horizontal line；Measured material is by right clamp and left card
Plate forms；3 anchor points contacting with blade are had, respectively on right clamp inner mold face：One
Type face anchor point and a top airfoil before blade leading edge string of a musical instrument summit anchor point, a top airfoil
Rear profile face anchor point；2 anchor points being contacted with blade are had on left clamp, respectively：One
Type face anchor point and a lower aerofoil rear profile face anchor point before lower aerofoil, when fixture inner mold face
5 anchor points fit simultaneously blade profile when, on right clamp measurement bearing optical clinometer
Installed surface is vertical with the blade string of a musical instrument.
2. blade torsional angle measuring method, is characterized in that, comprises the following steps：
The first step, is passed through the bush hole of blade, the root of blade is fixed using two alignment pins
On the location-plate of the positioning support clamping termination in propeller shank, location-plate is perpendicular to horizontal line；
Second step, blade afterbody is fixed on blade afterbody positioning support with its naturalness；
3rd step, installs measured material at certain section of blade, will ensure right card during installation
Five anchor points of plate and left clamp are fitted blade profile simultaneously；
4th step, optical clinometer is placed on the measurement bearing on right clamp, reads optics
The reading of dipmeter is the measured value of torsional angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310628413.XA CN104669153B (en) | 2013-12-02 | 2013-12-02 | Blade torsional angle measurement fixture and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310628413.XA CN104669153B (en) | 2013-12-02 | 2013-12-02 | Blade torsional angle measurement fixture and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104669153A CN104669153A (en) | 2015-06-03 |
| CN104669153B true CN104669153B (en) | 2017-02-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310628413.XA Active CN104669153B (en) | 2013-12-02 | 2013-12-02 | Blade torsional angle measurement fixture and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104669153B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931228B (en) * | 2018-09-26 | 2023-08-18 | 北京清航紫荆装备科技有限公司 | Pitch presss from both sides and pitch angle detection device |
| 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 |
| CN110966911B (en) * | 2019-12-19 | 2021-07-09 | 中国电子科技集团公司第三十八研究所 | Device and method for measuring blade angle of aviation propeller |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2170824A (en) * | 1939-08-22 | Propeller protractor | ||
| US3996670A (en) * | 1974-08-19 | 1976-12-14 | United Technologies Corporation | Protractor with digital readout |
| US4146967A (en) * | 1977-08-15 | 1979-04-03 | The Boeing Company | Rotor blade inspection fixture |
| SU1492208A1 (en) * | 1987-06-24 | 1989-07-07 | Предприятие П/Я Г-4974 | Protractor |
| JP3673954B2 (en) * | 1996-04-17 | 2005-07-20 | 株式会社トプコン | Tilt sensor and surveying instrument using the same |
| CN201348475Y (en) * | 2008-12-05 | 2009-11-18 | 江苏中联风能机械有限公司 | Angle gauge for vane measurement |
| CN201607203U (en) * | 2009-11-26 | 2010-10-13 | 浙江金盾风机风冷设备有限公司 | Blade angle measurement device of metro tunnel fan |
| US8196305B1 (en) * | 2011-01-25 | 2012-06-12 | General Electric Company | Turbine blade measuring device |
| CN102353314B (en) * | 2011-06-10 | 2013-08-07 | 哈尔滨飞机工业集团有限责任公司 | Detection method for outline of main blade of helicopter |
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2013
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| CN104669153A (en) | 2015-06-03 |
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