CN107021244A - A kind of measurement apparatus for aircraft nose wheel deflection angle - Google Patents
A kind of measurement apparatus for aircraft nose wheel deflection angle Download PDFInfo
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- CN107021244A CN107021244A CN201710266351.0A CN201710266351A CN107021244A CN 107021244 A CN107021244 A CN 107021244A CN 201710266351 A CN201710266351 A CN 201710266351A CN 107021244 A CN107021244 A CN 107021244A
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Abstract
A kind of measurement apparatus for aircraft nose wheel deflection angle of the invention belongs to aircraft mounting technology field.The technical scheme is that in aircraft assembling process, it is limited according to the structure type and locus of aircraft nose landing gear and front-wheel, with reference to the process characteristic of protractor, the deflection angle of accurate measurement front-wheel, the uniformity of effect rudder and front wheel positions, measurement apparatus need to directly act on front wheel brake block.Install accurate the invention provides one kind, it is simple to operate, service precision is high, and directly act on the measurement apparatus of the aircraft nose wheel deflection angle of front wheel brake block, the device has unified measurement apparatus in parts stage and the detection benchmark and structure type of assembling stage, reduce measurement difference, the uniformity of convenient detection rudder and front wheel positions；Risen before pointer is fixed on damper leg, make the result of angular surveying more accurate；Improve measurement accuracy, it is ensured that the degree of accuracy of rudder and front wheel positions effect.
Description
Technical field
A kind of measurement apparatus for aircraft nose wheel deflection angle of the invention belongs to aircraft mounting technology field.
Background technology
In aircraft nose landing gear assembling process, it is desirable to reflect the deflection angle of rudder by the deflection angle of front-wheel
Degree, it is ensured that front-drive direction is consistent with rudder rotation direction.Front-wheel left and right sides deflection angle is required in use
Respectively 35-20 °, precision is 0.5 °；Front-wheel goes to neutral position, the drift angle of Nose Wheel Steering neutral position from Derivative limit on the left or on the right position
1 ° is not allowed more than, and precision is 0.1 °.In traditional assembly technology, due to being limited by locus and structure type,
The metering system in parts production process can not be used, therefore uses the relative displacement of tape measure front-drive, by calculating
To reflect the deflection angle of front-wheel.This measuring method is simple to operate, but Steel Ruler precision is low, and measurement error is being calculated up to 50%
During the shortcomings of there is deviation accumulation, in addition None- identified front-wheel with rudder to odjective causes such as zero situations, all will be direct
Or service precision, the degree of accuracy and the operating efficiency of measurement apparatus are influenceed indirectly, it is impossible to meet the quality control requirement of product.
The content of the invention
The object of the invention：Install accurate there is provided one kind instant invention overcomes shortcoming of the prior art, it is simple to operate,
Service precision is high, and directly acts on the angle measurement unit of front wheel brake block.
Technical scheme：
A kind of measurement apparatus for aircraft nose wheel deflection angle, it is characterised in that the device includes dial plate component 1, referred to
Needle assemblies 2, dial plate component 1 is fixed on the outside of front-wheel outer barrel, for as measurement standard, indicating hand component 2 to play buffering before being fixed on
Middle part on the outside of pillar, by the rotation of damper leg, indicating hand component 2 can reflect the deflection angle of wheel；
(1) dial plate component 1 includes clip 1, clip 24, main dial plate 5；
Clip 1 and clip 24 can be used in combination, and one end of clip 1 and clip 24 is hinged, the He of clip 1
The other end of clip 24 is detachably connected, and the inner space formed after clip 1 and the closure of clip 24 can be by front-wheel outer barrel
Block in outside；
Main dial plate 5 is sector structure, has dial scale on the arc side of sector structure, main dial plate 5 is away from dial scale
One end with clip 24 is detachable is connected；
(2) indicating hand component 2 includes two connectors 18, adapter 19, pointer 20, tie rods 24；
Connector 18 is made up of clip 3 25, clip 4 26, and one end of clip 3 25 and clip 4 26 is hinged, clip three
25 and the other end of clip 4 26 be detachably connected, the inner space that clip 3 25 and clip 4 26 are formed after closing will can delay
Rush and blocked on the outside of pillar；
Connected between two connectors 18 by tie rod 24, the two ends of tie rod 24 are separately positioned on two clips 3 25
Corresponding site, tie rod 24 ensure two connectors 18 between relative position it is constant；
Adapter 19 is the sloping structure of tool, and adapter 19 is connected close to the side of slope bottom with two clips 4 26
Connect；
Pointer 20 is inverted L shape structure, and adapter 19 is connected close to the side on slope top with the bottom of pointer 20；
(3) front-wheel outer sleeve is blocked dial plate component 1 on the outside of front-wheel outer barrel, by pointer in the outer upper of damper leg
Two connectors 18 of component 2 block damper leg outer lower portion respectively, and dial plate component 1 and indicating hand component 2 are coaxial, dial plate component
Difference in height in 1 minimum point and indicating hand component 2 between the peak of bearing 34 should be greater than the dial plate on 100mm, front-wheel outer barrel
The remains stationary of component 1, the rotation of damper leg drives indicating hand component 2 to move, and is read by the deflection of pointer 20 on dial plate 5
Deflection angle.
Advantages of the present invention：The present invention has unified detection benchmark and knot of the measurement apparatus in parts stage and assembling stage
Configuration formula, reduces measurement difference, the uniformity of convenient detection rudder and front wheel positions；Pointer plays damper leg before being fixed on
On, make the result of angular surveying more accurate；Between 0 ° -2 ° of Nose Wheel Steering or so, accuracy of identification brings up to 0.1 ° by 1 °.To sum up
Described, the present invention not only increases the performance of technological equipment, while also improving the quality and production efficiency of product.
Brief description of the drawings
Fig. 1 is the use structural representation of the present invention；
Fig. 2 is dial plate modular construction schematic diagram of the present invention；
Fig. 3 is indicating hand component structural representation of the present invention；
Fig. 4 is connecting-piece structure schematic diagram of the present invention；
Fig. 5 is adaptor structure schematic diagram of the present invention；
Fig. 6 is pointer structure schematic diagram of the present invention；
Wherein：1 is dial plate component, and 2 be indicating hand component, and 3 be clip one, and 4 be clip two, and 5 be main dial plate, and 6 be subordinate list disk,
7 be hinge axis one, and 8 be plain washer one, and 9 be split pin one, and 10 be eyelet bolt one, and 11 be wing nut one, and 12 be hinge axis
Two, 13 be plain washer two, and 14 be split pin two, and 15 be sunk screw, and 16 be burnished bolt one, and 17 be hex nut one, and 18 are
Connector, 19 be adapter, and 20 be pointer, and 21 be burnished bolt two, and 22 be plain washer three, and 23 be hex nut two, and 24 be to draw
Tight bar, 25 be clip three, and 26 be clip four, and 27 be stationary bushing one, and 28 be eyelet bolt two, and 29 be hinge axis three, and 30 are out
Mouth pin three, 31 be wing nut two, and 32 be stationary bushing two, and 33 be stationary bushing three, and 34 be bearing, and 35 be stationary bushing four.
Embodiment
A kind of measurement apparatus for aircraft nose wheel deflection angle, it is characterised in that the device includes dial plate component 1, referred to
Needle assemblies 2, dial plate component 1 is fixed on the outside of front-wheel outer barrel, for as measurement standard, indicating hand component 2 to play buffering before being fixed on
Middle part on the outside of pillar, by the rotation of damper leg, indicating hand component 2 can reflect the deflection angle of wheel；
(1) dial plate component 1 mainly includes clip 1, clip 24, main dial plate 5, as shown in Figure 2：
Clip 1 and clip 24 are by hinge axis 2 12, and plain washer 2 13, split pin 14 2 constitutes radial type structure；Card
Bind round 1 and the other end of clip 24 pass through hinge axis 1, plain washer 1, split pin 1, eyelet bolt 1, wing nut
One 11 constitute demountable structure, are easy to open；The inner space that clip 1 and clip 24 are formed after closing can be by outside front-wheel
Block in cylinder outside；
Main dial plate 5 is sector structure, has dial scale on the arc side of sector structure, main dial plate 5 is away from dial scale
One end and clip 24 by burnished bolt 1, hex nut 1 is detachable to be connected；
Dial plate component is used cooperatively by clip 1 and clip 24, is fixed on front-wheel outer barrel.
(2) indicating hand component 2 mainly includes two connectors 18, adapter 19, pointer 20, tie rods 24, as shown in Figure 3；
Connector 18 is mainly made up of clip 3 25, clip 4 26, as shown in Figure 4.The one of clip 3 25 and clip 4 26
End constitutes radial type knot by stationary bushing 1, hinge axis 3 29, split pin 3 30, stationary bushing 2 32, plain washer 3 22
Structure；The other end of clip 3 25 and clip 4 26 passes through stationary bushing 1, eyelet bolt 2 28, hinge axis 3 29, split pin
3 30, plain washer 3 22 constitutes demountable structure, is easy to open；
Connected between two connectors 18 by tie rod 24, the two ends of tie rod 24 are separately positioned on two clips 3 25
Corresponding site, connector 18 is connected with tie rod 24 by plain washer 3 22, hex nut 2 23, to ensure relative position not
Become；
Adapter 19 is made up of stationary bushing 3 33, bearing 34, stationary bushing 4 35, as shown in Figure 5.Bearing is that have tiltedly
The elongate structure on slope；
Pointer 20 is inverted L shape structure, as shown in Figure 6；
The connection of connector 18 and adapter 19, is that adapter 19 leads to close to the side of slope bottom with two clips 4 26
Burnished bolt 2 21 is crossed, plain washer 3 22, hex nut 2 23 is connected；
The connection of adapter 19 and pointer 20, is that adapter 19 passes through close to the side and the bottom of pointer 20 on slope top
21 be burnished bolt two, and 22 be plain washer three, and 23 be that hex nut two is connected；
Before the inner space that indicating hand component 2 is formed after being closed by clip 3 25 in connector 18 and clip 4 26 is fixed on
Play damper leg.
(3) front-wheel outer sleeve is blocked dial plate component 1 on the outside of front-wheel outer barrel, by pointer in the outer upper of damper leg
Two connectors 18 of component 2 block damper leg outer lower portion respectively, and dial plate component 1 and indicating hand component 2 are coaxial, dial plate component
Difference in height in 1 minimum point and indicating hand component 2 between the peak of bearing 34 should be greater than 100mm, the dial plate on front-wheel outer barrel
The remains stationary of component 1, the rotation of damper leg drives indicating hand component 2 to move, and is read by the deflection of pointer 20 on dial plate 5
Deflection angle.
(4) present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, dial plate component 1 is fixed on into front-wheel outer barrel when using, indicating hand component 2 is arranged on preceding rise and buffers branch
Post, truly reflects the deflection angle of wheel by the anglec of rotation of damper leg.
Operating process is as follows：All parts in the manufacture present invention；The measurement apparatus of the present invention is installed aboard；Will
The connector 18 that clip 1 and clip 24 in dial plate component 1 are fixed in front-wheel outer barrel, indicating hand component 2 is arranged on preceding rise and delayed
Rush pillar, carry out pointer 20 and main dial plate 5 to zero before motion, by the compression and rotation of pillar in motion process, to recognize
The deflection angle of pointer 20.
Embodiment one
Because front-wheel outer sleeve is in the outer upper of damper leg, dial plate component 1 is blocked on the outside of front-wheel outer barrel, by pointer
Two connectors 18 of component 2 block damper leg outer lower portion respectively, and dial plate component 1 and indicating hand component 2 are coaxial.Dial plate component
The one end of main dial plate 5 with dial scale is 550mm away from damper leg axle center in 1, and measurement is improved in limited space
Bearing 34 is 585mm away from damper leg axle center in precision, indicating hand component 2, and dial plate component 1 and indicating hand component 2 are away from damper leg
The size at axle center is poor, and damper leg dial plate component 1 and indicating hand component 2 in rotation process are played before preventing and constitutes interference.
The difference in height of two connectors should ensure that between 80mm-100mm in indicating hand component 2, enhancing indicating hand component 2 can
By property and steadiness.
Pointer structure is easy to perforate to be spirally connected as shown in fig. 6, connection end size is larger, between increase and adapter
Steadiness；End is pointed to prevent human factor from causing error in reading, right triangular shape is designed as, in reading process, with straight
On the basis of side.
Using the measurement apparatus of the present invention, original state should be met：The minimum point of dial plate component 1 in indicating hand component 2 with propping up
Difference in height between the peak of seat 34 should be greater than 100mm, difference in height about 2mm between pointer 20 and dial plate 5, it is to avoid preceding buffering
Pillar causes dial plate component 1 and indicating hand component 2 to bump against in compression process.
Embodiment two
Front-wheel goes to neutral position from Derivative limit on the left or on the right position, and the drift angle of Nose Wheel Steering neutral position does not allow more than 1 °, and
Precision is 0.1 °.Subordinate list disk 6 is added in dial plate component 1, subordinate list disk 6 is 2 ° of left and right, and precision is 0.1 °.It is heavy that subordinate list disk 6 passes through
Head screw 15 is fixed on main dial plate 5, and in order to prevent damper leg in motion process, pointer 20 and subordinate list disk 6 rub,
The sagging 70x16x3 of the close end mill with dial scale of main dial plate 5, it is ensured that main dial plate 5 has graduated one side with subordinate list disk 6
In same plane.
Claims (1)
1. a kind of measurement apparatus for aircraft nose wheel deflection angle, it is characterised in that the device includes dial plate component (1), referred to
Needle assemblies (2), dial plate component (1) is fixed on the outside of front-wheel outer barrel, for as measurement standard, before indicating hand component (2) is fixed on
The middle part on the outside of damper leg is played, by the rotation of damper leg, indicating hand component (2) can reflect the deflection angle of wheel
Degree；
(1) dial plate component (1) includes clip one (3), clip two (4), main dial plate (5)；
Clip one (3) and clip two (4) can be used in combination, and one end of clip one (3) and clip two (4) is hinged, clip
The other end of one (3) and clip two (4) is detachably connected, the inner space energy formed after clip one (3) and clip two (4) closure
It is enough to be blocked on the outside of front-wheel outer barrel；
Main dial plate (5) is sector structure, has dial scale on the arc side of sector structure, main dial plate (5) is away from dial scale
One end with clip two (4) is detachable is connected；
(2) indicating hand component (2) includes two connectors 18, adapter 19, pointer 20, tie rods 24；
Connector 18 is made up of clip 3 25, clip 4 26, and one end of clip 3 25 and clip 4 26 is hinged, the He of clip 3 25
The other end of clip 4 26 is detachably connected, and the inner space formed after clip 3 25 and the closure of clip 4 26 can will buffer branch
Blocked on the outside of post；
Connected between two connectors 18 by tie rod 24, the two ends of tie rod 24 are separately positioned on the phase of two clips 3 25
Position is answered, tie rod 24 ensures that the relative position between two connectors 18 is constant；
Adapter 19 is the sloping structure of tool, and adapter 19 is connected close to the side of slope bottom with two clips 4 26；
Pointer 20 is inverted L shape structure, and adapter 19 is connected close to the side on slope top with the bottom of pointer 20；
(3) front-wheel outer sleeve is blocked dial plate component (1) on the outside of front-wheel outer barrel, by pointer set in the outer upper of damper leg
Two connectors 18 of part (2) block damper leg outer lower portion respectively, dial plate component (1) with indicating hand component (2) coaxially, dial plate
Difference in height in the minimum point and indicating hand component (2) of component (1) between the peak of bearing 34 should be greater than 100mm, front-wheel outer barrel
On dial plate component (1) remains stationary, the rotation of damper leg drives indicating hand component (2) motion, by the deflection of pointer 20 come
Read the deflection angle on dial plate 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266351.0A CN107021244B (en) | 2017-04-21 | 2017-04-21 | A kind of measuring device for aircraft nose wheel deflection angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266351.0A CN107021244B (en) | 2017-04-21 | 2017-04-21 | A kind of measuring device for aircraft nose wheel deflection angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107021244A true CN107021244A (en) | 2017-08-08 |
| CN107021244B CN107021244B (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710266351.0A Active CN107021244B (en) | 2017-04-21 | 2017-04-21 | A kind of measuring device for aircraft nose wheel deflection angle |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631681A (en) * | 2017-09-21 | 2018-01-26 | 安徽江淮汽车集团股份有限公司 | A kind of back axle flange return survey tool |
| CN109774966A (en) * | 2017-11-13 | 2019-05-21 | 中航通飞华南飞机工业有限公司 | A kind of device and method for not pushing up aircraft and carrying out Nose Wheel Steering functional check |
| CN111891381A (en) * | 2020-06-17 | 2020-11-06 | 成都飞机工业（集团）有限责任公司 | Aircraft front wheel deflection angle measuring mechanism |
| CN112249362A (en) * | 2020-10-13 | 2021-01-22 | 安徽感航电子科技有限公司 | A accurate measurement and control device of pillar corner for when diamond unmanned aerial vehicle descends |
| CN112857184A (en) * | 2019-11-28 | 2021-05-28 | 中国商用飞机有限责任公司 | Undercarriage wheel corner measuring device |
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| CN1731123A (en) * | 2005-08-22 | 2006-02-08 | 长安大学 | Calibrating apparatus for wheel positioning parameter measuring instrument |
| CN202719948U (en) * | 2012-06-06 | 2013-02-06 | 沈阳飞机工业（集团）有限公司 | Swing angle measuring instrument |
| WO2016003721A1 (en) * | 2014-07-01 | 2016-01-07 | Sikorsky Aircraft Corporation | Blade geometry characterization tool |
| CN105509618A (en) * | 2015-11-25 | 2016-04-20 | 中国航空工业集团公司沈阳飞机设计研究所 | Deflection angle measurer of flap aileron |
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2017
- 2017-04-21 CN CN201710266351.0A patent/CN107021244B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731123A (en) * | 2005-08-22 | 2006-02-08 | 长安大学 | Calibrating apparatus for wheel positioning parameter measuring instrument |
| CN202719948U (en) * | 2012-06-06 | 2013-02-06 | 沈阳飞机工业（集团）有限公司 | Swing angle measuring instrument |
| WO2016003721A1 (en) * | 2014-07-01 | 2016-01-07 | Sikorsky Aircraft Corporation | Blade geometry characterization tool |
| CN105509618A (en) * | 2015-11-25 | 2016-04-20 | 中国航空工业集团公司沈阳飞机设计研究所 | Deflection angle measurer of flap aileron |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631681A (en) * | 2017-09-21 | 2018-01-26 | 安徽江淮汽车集团股份有限公司 | A kind of back axle flange return survey tool |
| CN109774966A (en) * | 2017-11-13 | 2019-05-21 | 中航通飞华南飞机工业有限公司 | A kind of device and method for not pushing up aircraft and carrying out Nose Wheel Steering functional check |
| CN112857184A (en) * | 2019-11-28 | 2021-05-28 | 中国商用飞机有限责任公司 | Undercarriage wheel corner measuring device |
| CN111891381A (en) * | 2020-06-17 | 2020-11-06 | 成都飞机工业（集团）有限责任公司 | Aircraft front wheel deflection angle measuring mechanism |
| CN112249362A (en) * | 2020-10-13 | 2021-01-22 | 安徽感航电子科技有限公司 | A accurate measurement and control device of pillar corner for when diamond unmanned aerial vehicle descends |
| CN112249362B (en) * | 2020-10-13 | 2024-03-08 | 合肥市闪感智能科技有限公司 | A accurate measurement and control device of pillar corner for diamond unmanned aerial vehicle when descending |
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| Publication number | Publication date |
|---|---|
| CN107021244B (en) | 2019-08-02 |
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Address after: 723213 Liulin Town, Chenggu County, Hanzhong City, Shaanxi Province Patentee after: Shaanxi Aircraft Industry Co., Ltd Address before: 723213 P.O. Box 34, Hanzhong, Shaanxi Patentee before: Shaanxi aircraft industry (Group) Co., Ltd |
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