CN103063363A - Measuring apparatus and method of unpiloted helicopter rotor blades static moment and barycenter - Google Patents
Measuring apparatus and method of unpiloted helicopter rotor blades static moment and barycenter Download PDFInfo
- Publication number
- CN103063363A CN103063363A CN2012105853478A CN201210585347A CN103063363A CN 103063363 A CN103063363 A CN 103063363A CN 2012105853478 A CN2012105853478 A CN 2012105853478A CN 201210585347 A CN201210585347 A CN 201210585347A CN 103063363 A CN103063363 A CN 103063363A
- Authority
- CN
- China
- Prior art keywords
- blade
- platen
- static moment
- fixedly connected
- gravity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a measuring apparatus and a method of an unpiloted helicopter rotor blades static moment and a barycenter. The measuring apparatus and the method of the unpiloted helicopter rotor blades static moment and the barycenter are mainly used for measuring the mass static moment and the barycenter of the unpiloted helicopter composite material rotor blades and tail rotor blades. The measuring apparatus and the method of the unpiloted helicopter rotor blades static moment and the barycenter comprise measured unpiloted helicopter rotor blades, a first plain trolley, a second plain trolley, two long sliding rails, a electric scale, a sliding platen, a left blade, a right blade, a first fixed connecting platen, a second fixed connecting platen, a third fixed connecting platen, and supports. The unpiloted helicopter rotor blades mass static moment and the barycenter integrated measuring apparatus is a mass static moment and the barycenter measuring apparatus which is high in precision, good in positioning, simple in operation, and high in efficiency. The measurement of the mass static moment and the barycenter measurement can be done one time without a secondary installation and debugging. Paddles with various lengths can be measured by adjusting the position of the sliding platen.
Description
Technical field
What the present invention relates to is a kind of depopulated helicopter rotor blade quality static moment and gravity center measurement device and measuring method thereof, is mainly used in quality static moment and the center of gravity measurement of composite rotor blade for unmanned helicopter and tail-rotor leaf.
Background technology
The quality static moment is the important indicator of reflection depopulated helicopter main rotor and tail rotor centrifugal force balance.Traditional manual measurement quality static moment method, interference from human factor is large, and each benchmark of measuring has error, and repeatability is bad; And tangential, exhibition need to make up different testing tables to the quality static moment with center of gravity, measures time-consumingly, and efficient is low.The measurement of main rotor blades and tail-rotor leaf needs different measurement mechanisms.
Summary of the invention
The object of the invention is to provides a kind of device and measuring method thereof of measuring depopulated helicopter rotor blade and tail-rotor leaf quality static moment and center of gravity for the deficiency of above-mentioned measurement, this device is simple to operate, easy for installation, error is less, the measurement efficient of quality static moment and center of gravity is high, the blade length scope of measuring is wide, and main rotor blades and tail-rotor leaf can share a measurement mechanism.
A kind of depopulated helicopter rotor blade quality static moment of the present invention and gravity center measurement device and measuring method thereof are to take following technical scheme to realize:
A kind of depopulated helicopter rotor blade quality static moment and gravity center measurement device comprise measured depopulated helicopter blade, small handcart one, small handcart two, two long tracks, electronic scales, slip platen, left blade, right blades, are fixedly connected with platen one, are fixedly connected with platen two, are fixedly connected with platen three and support column.
One end of two long tracks links to each other with small handcart one by being fixedly connected with platen two, and the other end of two long tracks links to each other with small handcart two by being fixedly connected with platen three; Be fixed with right blade above the slip platen, and slide at two guide rails by sliding bearing; Electronic scales is fixed on and is fixedly connected with on the platen one, and this is fixedly connected with platen one and is connected to by four support columns and is fixedly connected with on the platen two, is fixedly connected with platen one and is fixedly connected with platen two and can staggers mutually fixing and be connected, thereby can increase measurement range; Left blade is fixed by screws on the electronic scales, and the level height of the point of a knife of left blade and right blade is consistent.Lying in a horizontal plane on left blade and the right blade of measured depopulated helicopter rotor blade, blade root is placed on the left blade, 10 millimeters apart from the blade root end on left blade, blade tip is placed on the right blade, 10 millimeters apart from the blade tip end on right blade, read qualitative data from electronic scales, measure distance and the blade weight of two blades, just can obtain center of gravity and the quality static moment of blade.
Described small handcart one top arranges left side band jug fixed connecting plate.Described small handcart 23 tops arrange the right band jug fixed connecting plate.
Be provided with micromatic setting on described small handcart one and small handcart two return pulleys.
The lower left corner is provided with level meter on the described electronic scales.
Described depopulated helicopter rotor blade quality static moment and center of gravity measurement principle are as described below:
Blade is propped with two strong point levels, measured the distance of the strong point
Anchorage force with a strong point
And blade quality
, according to principle of moment balance, obtain center of gravity and static moment is shown below:
In the formula,
Distance for another strong point of blade center of gravity square;
According to the difference of blade support point can measure respectively blade exhibition to tangential center of gravity and static moment.
Because be fixedly connected with platen one, be fixedly connected with platen two be fixedly connected with platen three uniform according to certain rules the hole of standard, rail plate is being fixedly connected with on the platen three and is being fixedly connected with up and down platen one on the small handcart one and is fixedly connected with platen two, the connection of can staggering between two blocks of platens, thereby can satisfy the measurement demand of different blade lengths, the depopulated helicopter blade length scope that apparatus of the present invention are measured is:
The measuring method of a kind of depopulated helicopter rotor blade quality static moment and gravity center measurement device, carry out as follows:
1, fixation measuring device.The return pulley of small handcart and small handcart is transferred to liftoff, the firm banking support platform is landed, guarantee two go-carts fix on the ground be difficult for mobile.
2, regulate the levelness of small handcart one and small handcart two.The height (micromatic setting is arranged on the return pulley) of fine setting firm banking guarantees small handcart one and the platen level that is fixedly connected with above the small handcart two, and measures with surveyor's staff.
3, regulate the levelness of electronic scales.By the height of four support columns of fine setting electronic scale base, the scale face of electronic scales is transferred to level, the lower left corner is provided with level meter on the electronic scales.
4, regulate the height of left blade and right blade, take right blade as benchmark, regulate the height of left blade, guarantee that two knife faces are on the same level height.
5, weigh up the quality of tested blade 1 with electronic scales
6, place tested blade by the form shown in the accompanying drawing 2, tested blade is placed on left blade and the right blade, keep the blade level.The position of blade on blade as shown in Figure 3, tangential and exhibition all is 10mm to the distance on distance border.
7, read distance between reading on the electronic scales and left blade and right blade two blades.Duplicate measurements group data are obtained mean value respectively.
8, calculate tested blade exhibition to center of gravity according to formula (1)
Calculate the quality static moment of tested blade according to formula (2)
Described measurement mechanism, the blade length that can adapt to different length is measured.Blade is measured length range:
, the center of gravity measurement error less than
, the static moment error less than
A kind of depopulated helicopter blade quality static moment and gravity center measurement device advantage: depopulated helicopter blade quality static moment and gravity center measurement device are reasonable in design, simple in structure, operability is good, can measure simultaneously blade quality static moment and center of gravity in the short period, efficient is high; Be better, simple to operate, the high efficiency depopulated helicopter blade of a kind of positioning datum quality static moment and gravity center measurement device, the measurement of quality static moment and center of gravity can once be finished, and does not need secondary installing and debugging; By adjusting the sliding stand Board position, can carry out to the depopulated helicopter blade of different length center of gravity and quality static moment and measure.
Description of drawings
The invention will be further described below with reference to accompanying drawing:
Accompanying drawing 1 is depopulated helicopter blade center of gravity of the present invention and quality static moment measurement mechanism structural representation.
Accompanying drawing 2 is that measuring principle of the present invention and blade are placed schematic diagram.
Blade was positioned over the position view on the blade when accompanying drawing 3 was of the present invention the measurement.
Embodiment
With reference to accompanying drawing 1～4, a kind of depopulated helicopter rotor blade quality static moment and gravity center measurement device comprise measured depopulated helicopter blade 1, small handcart 1, small handcart 23, two long tracks 4, electronic scales 5, slip platen 6, left blade 7, right blades 8, are fixedly connected with platen one 9-1, are fixedly connected with platen two 9-2, are fixedly connected with platen three 9-3 and support column 10.
One end of two long tracks 4 links to each other with small handcart 1 by being fixedly connected with platen two 9-2, and the other end of two long tracks 4 links to each other with small handcart 23 by being fixedly connected with platen three 9-3; Be fixed with right blade 8 above the slip platen 6, and slide at two guide rails 4 by sliding bearing; Electronic scales 5 is fixed on and is fixedly connected with on platen one 9-1, this is fixedly connected with platen one 9-1 and is connected to by four support columns 10 and is fixedly connected with on platen two 9-2, be fixedly connected with platen one 9-1 and be fixedly connected with platen two 9-2 and can stagger mutually fixing and be connected, thereby can increase measurement range; Left blade 7 is fixed by screws on the electronic scales 5, and left blade 7 is consistent with the level height of the point of a knife of right blade 8.Lying in a horizontal plane on left blade 7 and the right blade 8 of measured depopulated helicopter rotor blade 1, blade root are placed on (10 millimeters apart from the blade root end on blade 7) on the left blade 7, and blade tip is placed on (10 millimeters apart from the blade tip end on blade 8) on the right blade 8, as shown in Figure 3.Read qualitative data from electronic scales 5, measure distance and the blade weight of two blades, just can obtain center of gravity and the quality static moment of blade.
Described small handcart one 2 tops arrange left side band jug fixed connecting plate.Described small handcart 23 tops arrange the right band jug fixed connecting plate.
Be provided with micromatic setting on described small handcart 1 and small handcart 23 return pulleys.
The lower left corner is provided with level meter on the described electronic scales 5.
Tested blade lies in a horizontal plane on left blade 7 and the right blade 8, as shown in Figure 2.
Described depopulated helicopter rotor blade quality static moment and center of gravity measurement principle are as described below:
Blade is propped with two strong point levels, measured the distance of the strong point
Anchorage force with a strong point
And blade quality
, according to principle of moment balance, obtain center of gravity and static moment is shown below:
（2）
In the formula,
Distance for another strong point of blade center of gravity square;
According to the difference of blade support point can measure respectively blade exhibition to tangential center of gravity and static moment, as shown in Figure 3.
Because be fixedly connected with platen one 9-1, be fixedly connected with platen two 9-2 be fixedly connected with platen three 9-3 uniform according to certain rules the hole of standard, shown in the accompanying drawing 4, rail plate 4 is being fixedly connected with on platen three 9-3 and is being fixedly connected with up and down platen one 9-1 on the small handcart 1 and is fixedly connected with platen two 9-2, the connection of can staggering between two blocks of platens, thereby can satisfy the measurement demand of different blade lengths, the depopulated helicopter blade length scope that apparatus of the present invention are measured is:
The measuring method of a kind of depopulated helicopter rotor blade quality static moment and gravity center measurement device, carry out as follows:
1, fixation measuring device.The return pulley of small handcart 2 and small handcart 3 is transferred to liftoff, the firm banking support platform is landed, guarantee two small handcarts fix on the ground be difficult for mobile.
2, regulate the levelness of small handcart 1 and small handcart 23.The height (micromatic setting is arranged on the return pulley) of fine setting firm banking guarantees small handcart 1 and the platen level that is fixedly connected with above the small handcart 23, and measures with surveyor's staff.
3, regulate the levelness of electronic scales 5.By the height of four support columns 10 of fine setting electronic scale base, the scale face of electronic scales 5 is transferred to level, the lower left corner is provided with level meter on the electronic scales 5.
4, regulate the height of left blade 7 and right blade 8, take right blade 8 as benchmark, regulate the height of left blade 7, guarantee that two knife faces are on the same level height.
5, weigh up the quality of tested blade 1 with electronic scales 5
6, place tested blade by the form shown in the accompanying drawing 2, tested blade is placed on left blade 7 and the right blade 8, keep the blade level.The position of blade on blade as shown in Figure 3, tangential and exhibition all is 10mm to the distance on distance border.
7, read distance between reading on the electronic scales 5 and left blade 7 and 8 liang of blades of right blade.13 groups of data of duplicate measurements are obtained mean value respectively.
8, calculate tested blade exhibition to center of gravity according to formula (1)
Calculate the quality static moment of tested blade according to formula (2)
Described measurement mechanism can adapt to the blade length of different length and measure.Blade is measured length range:
, the center of gravity measurement error less than
, the static moment error less than
Claims (5)
1. a depopulated helicopter blade static moment and gravity center measurement device is characterized in that: comprise measured depopulated helicopter blade, small handcart one, small handcart two, two long tracks, electronic scales, slip platen, left blade, right blades, be fixedly connected with platen one, be fixedly connected with platen two, be fixedly connected with platen three and support column;
One end of two long tracks links to each other with small handcart one by being fixedly connected with platen two, and the other end of two long tracks links to each other with small handcart two by being fixedly connected with platen three; Be fixed with right blade above the slip platen, and slide at two guide rails by sliding bearing; Electronic scales is fixed on and is fixedly connected with on the platen one, and this is fixedly connected with platen one and is connected to by four support columns and is fixedly connected with on the platen two, is fixedly connected with platen one and is fixedly connected with platen two and can staggers mutually fixing and be connected, thereby can increase measurement range; Left blade is fixed by screws on the electronic scales, and the level height of the point of a knife of left blade and right blade is consistent; Lying in a horizontal plane on left blade and the right blade of measured depopulated helicopter rotor blade, blade root is placed on the left blade, 10 millimeters apart from the blade root end on left blade, blade tip is placed on the right blade, 10 millimeters apart from the blade tip end on right blade; Read qualitative data from electronic scales, measure distance and the blade weight of two blades, just can obtain center of gravity and the quality static moment of blade.
2. a kind of depopulated helicopter blade static moment according to claim 1 and gravity center measurement device, it is characterized in that: described small handcart one top arranges left side band jug fixed connecting plate.
3. a kind of depopulated helicopter blade static moment according to claim 1 and gravity center measurement device is characterized in that: band jug fixed connecting plate on the right of described small handcart two tops arrange.
4. the measuring method of a kind of depopulated helicopter blade static moment claimed in claim 1 and gravity center measurement device is characterized in that: carry out as follows:
(1) fixation measuring device is transferred to the return pulley of small handcart and small handcart liftoff, and the firm banking support platform is landed, guarantee two go-carts fix on the ground be difficult for mobile;
(2) regulate the levelness of go-cart one and small handcart two, the height of fine setting firm banking has micromatic setting on the return pulley, guarantees go-cart one and the platen level that is fixedly connected with above the go-cart two, and measures by surveyor's staff:
(3) levelness of adjusting electronic scales;
By the height of four support columns of fine setting electronic scale base, the scale face of electronic scales is transferred to level, the lower left corner is provided with level meter on the electronic scales;
(4) height of the left blade of adjusting and right blade take right blade as benchmark, is regulated the height of left blade, guarantees that two knife faces are on the same level height;
(5) weigh up the quality of tested blade with electronic scales
(6) tested blade is placed on left blade and the right blade, keeps the blade level, the position of blade on blade, tangential distance with opening up to the distance border all is 10mm;
(7) read distance between reading on the electronic scales and left blade and right blade two blades, 13 groups of data of duplicate measurements are obtained mean value respectively;
(8) blade is propped with two strong point levels, measured the distance of the strong point
Anchorage force with a strong point
And blade quality
, according to principle of moment balance, obtain center of gravity and static moment is shown below:
In the formula,
Distance for another strong point of blade center of gravity square;
Calculate tested oar to center of gravity according to formula (1)
Calculate the quality static moment of tested blade according to formula (2)
5. the measuring method of a kind of depopulated helicopter blade static moment according to claim 4 and gravity center measurement device is characterized in that: described measurement mechanism, and the blade length that can adapt to different length is measured, and blade is measured length range and is:
, the center of gravity measurement error less than
, the static moment error less than
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105853478A CN103063363A (en) | 2012-12-29 | 2012-12-29 | Measuring apparatus and method of unpiloted helicopter rotor blades static moment and barycenter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105853478A CN103063363A (en) | 2012-12-29 | 2012-12-29 | Measuring apparatus and method of unpiloted helicopter rotor blades static moment and barycenter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103063363A true CN103063363A (en) | 2013-04-24 |
Family
ID=48106082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105853478A Pending CN103063363A (en) | 2012-12-29 | 2012-12-29 | Measuring apparatus and method of unpiloted helicopter rotor blades static moment and barycenter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103063363A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712745A (en) * | 2013-12-26 | 2014-04-09 | 哈尔滨工业大学 | Device and device for measuring gravity center parameters of helicopter rotor blades |
| CN103984339A (en) * | 2014-05-20 | 2014-08-13 | 西南交通大学 | Mechanical failure debugging device for rotor craft |
| CN104697712A (en) * | 2015-04-01 | 2015-06-10 | 长春理工大学 | Inspection method for mass center of revolving workpiece |
| CN107271106A (en) * | 2016-04-07 | 2017-10-20 | 丰邦实业有限公司 | The center of gravity measuring equipment of remotely-piloted vehicle and its wing |
| CN108007644A (en) * | 2017-11-17 | 2018-05-08 | 哈尔滨飞机工业集团有限责任公司 | A kind of calibration method of helicopter blade dynamic balance bench propeller hub initial settling angle |
| CN108955977A (en) * | 2018-05-25 | 2018-12-07 | 华瑞（江苏）燃机服务有限公司 | A kind of measurement method of combustion engine turbine blade weight square |
| CN109163847A (en) * | 2018-08-30 | 2019-01-08 | 哈尔滨飞机工业集团有限责任公司 | A kind of rotor center of gravity measurement method and its measurement tooling |
| CN109612632A (en) * | 2018-11-02 | 2019-04-12 | 中国航空工业集团公司西安飞机设计研究所 | A kind of general-purpose aircraft rudder weight balancing inspection method |
| CN109823568A (en) * | 2019-02-01 | 2019-05-31 | 南京乾利合科技有限责任公司 | A kind of aircraft blade torque automatic measurement system |
| CN110411661A (en) * | 2019-07-10 | 2019-11-05 | 中国科学院上海技术物理研究所 | Turntable center of gravity and spindle central bias measurement structure and measurement method |
| CN110657918A (en) * | 2019-09-19 | 2020-01-07 | 哈尔滨飞机工业集团有限责任公司 | Tail rotor blade static balance detection tool |
| CN110657919A (en) * | 2019-10-16 | 2020-01-07 | 中国航空工业集团公司洛阳电光设备研究所 | Helicopter gravity center real-time measurement method |
| CN113291486A (en) * | 2021-01-06 | 2021-08-24 | 合肥联合飞机科技有限公司 | Balancing method for static balance of helicopter blades |
| CN114216611A (en) * | 2021-11-05 | 2022-03-22 | 河北汉光重工有限责任公司 | Device and method for measuring gravity center of longitudinal axis of aircraft |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1326065A1 (en) * | 2001-12-24 | 2003-07-09 | REDAT S.p.A | A method of measuring the unbalance of rotors |
| CN101074896A (en) * | 2007-06-22 | 2007-11-21 | 武汉船用机械有限责任公司 | Method for measuring blade static-balance gravity center |
| RU2332650C1 (en) * | 2006-11-28 | 2008-08-27 | Государственное образовательное учреждение высшего профессионального образования "Московский энергетический институт (технический университет)" (ГОУВПО "МЭИ (ТУ)") | Method of determination of body static moment |
| CN101271032A (en) * | 2008-05-05 | 2008-09-24 | 杭州汽轮机股份有限公司 | Measuring method and device for locked rotor torque of turbine rotor blade |
| CN202195872U (en) * | 2011-08-31 | 2012-04-18 | 南京工业大学 | Batch automatic matching device for vane of small wind-driven generator |
| CN203053640U (en) * | 2012-12-29 | 2013-07-10 | 中国人民解放军总参谋部第六十研究所 | An integrated measuring device capable of measuring the mass static moment and the center of gravity of the blade of an unmanned helicopter |
-
2012
- 2012-12-29 CN CN2012105853478A patent/CN103063363A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1326065A1 (en) * | 2001-12-24 | 2003-07-09 | REDAT S.p.A | A method of measuring the unbalance of rotors |
| RU2332650C1 (en) * | 2006-11-28 | 2008-08-27 | Государственное образовательное учреждение высшего профессионального образования "Московский энергетический институт (технический университет)" (ГОУВПО "МЭИ (ТУ)") | Method of determination of body static moment |
| CN101074896A (en) * | 2007-06-22 | 2007-11-21 | 武汉船用机械有限责任公司 | Method for measuring blade static-balance gravity center |
| CN101271032A (en) * | 2008-05-05 | 2008-09-24 | 杭州汽轮机股份有限公司 | Measuring method and device for locked rotor torque of turbine rotor blade |
| CN202195872U (en) * | 2011-08-31 | 2012-04-18 | 南京工业大学 | Batch automatic matching device for vane of small wind-driven generator |
| CN203053640U (en) * | 2012-12-29 | 2013-07-10 | 中国人民解放军总参谋部第六十研究所 | An integrated measuring device capable of measuring the mass static moment and the center of gravity of the blade of an unmanned helicopter |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712745A (en) * | 2013-12-26 | 2014-04-09 | 哈尔滨工业大学 | Device and device for measuring gravity center parameters of helicopter rotor blades |
| CN103712745B (en) * | 2013-12-26 | 2016-03-23 | 哈尔滨工业大学 | Helicopter rotor blade center of gravity parameter measuring apparatus and method |
| CN103984339A (en) * | 2014-05-20 | 2014-08-13 | 西南交通大学 | Mechanical failure debugging device for rotor craft |
| CN103984339B (en) * | 2014-05-20 | 2016-08-24 | 西南交通大学 | Mechanical breakdown debugging apparatus for rotor craft |
| CN104697712A (en) * | 2015-04-01 | 2015-06-10 | 长春理工大学 | Inspection method for mass center of revolving workpiece |
| CN104697712B (en) * | 2015-04-01 | 2017-12-01 | 长春理工大学 | A kind of revolving body workpieces barycenter method of inspection |
| CN107271106A (en) * | 2016-04-07 | 2017-10-20 | 丰邦实业有限公司 | The center of gravity measuring equipment of remotely-piloted vehicle and its wing |
| CN108007644A (en) * | 2017-11-17 | 2018-05-08 | 哈尔滨飞机工业集团有限责任公司 | A kind of calibration method of helicopter blade dynamic balance bench propeller hub initial settling angle |
| CN108955977A (en) * | 2018-05-25 | 2018-12-07 | 华瑞（江苏）燃机服务有限公司 | A kind of measurement method of combustion engine turbine blade weight square |
| CN109163847A (en) * | 2018-08-30 | 2019-01-08 | 哈尔滨飞机工业集团有限责任公司 | A kind of rotor center of gravity measurement method and its measurement tooling |
| CN109612632A (en) * | 2018-11-02 | 2019-04-12 | 中国航空工业集团公司西安飞机设计研究所 | A kind of general-purpose aircraft rudder weight balancing inspection method |
| CN109823568A (en) * | 2019-02-01 | 2019-05-31 | 南京乾利合科技有限责任公司 | A kind of aircraft blade torque automatic measurement system |
| CN109823568B (en) * | 2019-02-01 | 2022-06-03 | 南京乾利合科技有限责任公司 | Automatic measuring system for moment of airplane blade |
| CN110411661A (en) * | 2019-07-10 | 2019-11-05 | 中国科学院上海技术物理研究所 | Turntable center of gravity and spindle central bias measurement structure and measurement method |
| CN110411661B (en) * | 2019-07-10 | 2024-03-26 | 中国科学院上海技术物理研究所 | Structure and method for measuring deviation between center of gravity of turntable and center of rotating shaft |
| CN110657918A (en) * | 2019-09-19 | 2020-01-07 | 哈尔滨飞机工业集团有限责任公司 | Tail rotor blade static balance detection tool |
| CN110657919A (en) * | 2019-10-16 | 2020-01-07 | 中国航空工业集团公司洛阳电光设备研究所 | Helicopter gravity center real-time measurement method |
| CN110657919B (en) * | 2019-10-16 | 2022-05-03 | 中国航空工业集团公司洛阳电光设备研究所 | Helicopter gravity center real-time measurement method |
| CN113291486A (en) * | 2021-01-06 | 2021-08-24 | 合肥联合飞机科技有限公司 | Balancing method for static balance of helicopter blades |
| CN114216611A (en) * | 2021-11-05 | 2022-03-22 | 河北汉光重工有限责任公司 | Device and method for measuring gravity center of longitudinal axis of aircraft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103063363A (en) | Measuring apparatus and method of unpiloted helicopter rotor blades static moment and barycenter | |
| CN103712745B (en) | Helicopter rotor blade center of gravity parameter measuring apparatus and method | |
| CN202149763U (en) | Ground flatness tester | |
| CN203396314U (en) | Rope-pulling type displacement meter calibration device | |
| CN201096569Y (en) | Test stand for engines belt tension measuring | |
| CN203053640U (en) | An integrated measuring device capable of measuring the mass static moment and the center of gravity of the blade of an unmanned helicopter | |
| CN203274665U (en) | Back adjustment type flatness detection apparatus | |
| CN206756382U (en) | A kind of propeller dynamic balance measuring device | |
| CN101271032A (en) | Measuring method and device for locked rotor torque of turbine rotor blade | |
| CN203024849U (en) | Tester for indexes of gastrodia elata form | |
| CN209446444U (en) | One kind being used for solar photovoltaic assembly peel test force equipment | |
| CN207867909U (en) | A kind of measurement Gear Root residual stress angle regulator | |
| CN204739987U (en) | Aluminium base board V groove depth degree and roughness testboard | |
| CN200947079Y (en) | Vertical tow linear density tester | |
| CN202648606U (en) | Straightness measuring device for washing machine control panel | |
| CN201945491U (en) | Fixed length steel cord shearer | |
| CN202853847U (en) | Simple device for on-site measurement of rotating device blade mass moment | |
| CN204115641U (en) | Crank phase angle detection device | |
| CN208187317U (en) | A kind of overhead contact built-in conduit gap measuring device | |
| CN211178244U (en) | Optical lens thickness detection device | |
| CN205120054U (en) | Lathe bed way deformation monitoring simulation experiment platform | |
| CN104833449B (en) | Electric locomotive pantagraph current collector Static Contact force measuring device | |
| CN203069345U (en) | Child dummy abdomen calibration table | |
| CN202853534U (en) | Device for measuring attachment precision of polarizer | |
| CN208458603U (en) | A kind of civil engineering measuring scale |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130424 |