CN107021244B - A kind of measuring device for aircraft nose wheel deflection angle - Google Patents
A kind of measuring device for aircraft nose wheel deflection angle Download PDFInfo
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- CN107021244B CN107021244B CN201710266351.0A CN201710266351A CN107021244B CN 107021244 B CN107021244 B CN 107021244B CN 201710266351 A CN201710266351 A CN 201710266351A CN 107021244 B CN107021244 B CN 107021244B
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Abstract
A kind of measuring device for aircraft nose wheel deflection angle of the present invention belongs to aircraft mounting technology field.The device includes dial plate component (1), indicating hand component (2), dial plate component (1) is fixed on the outside of front-wheel outer cylinder, for as measurement standard, indicating hand component (2) plays the intermediate position on the outside of damper leg before being fixed on, by the rotation of damper leg, indicating hand component (2) is able to reflect the deflection angle of wheel.The present invention provides a kind of installation is accurate, it is easy to operate, service precision is high, and directly act on the measuring device of the aircraft nose wheel deflection angle of front wheel brake block, the device has unified measuring device in the detection benchmark and structure type in components stage and assembling stage, measurement difference is reduced, the consistency of detection direction rudder and front wheel positions is facilitated；It is risen on damper leg before pointer is fixed on, keeps the result of angle measurement more accurate；Measurement accuracy is improved, ensure that the accuracy of rudder and front wheel positions effect.
Description
Technical field
A kind of measuring device for aircraft nose wheel deflection angle of the present invention belongs to aircraft mounting technology field.
Background technique
In aircraft nose landing gear assembling process, it is desirable that reflect the deflection angle of rudder by the deflection angle of front-wheel
Degree guarantees that front-drive direction is consistent with rudder rotation direction.Deflection angle at left and right sides of front-wheel 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 spatial position and structure type,
The relative displacement of tape measure front-drive can not be used using the measurement method in components production process, pass through calculating
To reflect the deflection angle of front-wheel.This measurement method is easy to operate, but Steel Ruler precision is low, and measurement error is being calculated up to 50%
There is the disadvantages of deviation accumulation in the process, can not identify that front-wheel and rudder, all will be direct to odjective causes such as zero situations in addition
Or service precision, accuracy and the working efficiency of measuring device are influenced indirectly, it is unable to satisfy the quality control requirement of product.
Summary of the invention
The object of the invention: the present invention overcomes the disadvantages of the prior art, and it is accurate to provide a kind of installation, easy to operate,
Service precision is high, and directly acts on the angle measurement unit of front wheel brake block.
Technical solution of the present invention:
A kind of measuring device for aircraft nose wheel deflection angle, which is characterized in that the device includes dial plate component 1, refers to
Needle assemblies 2, dial plate component 1 are fixed on the outside of front-wheel outer cylinder, for playing buffering before being used as measurement standard, indicating hand component 2 to be fixed on
Intermediate position on the outside of pillar, by the rotation of damper leg, indicating hand component 2 is able to 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, one 3 He of clip
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 cylinder
It blocks in outside；
Main dial plate 5 is sector structure, has dial scale in the arc side of sector structure, main dial plate 5 is far 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 rod 24；
Connector 18 is made 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 being closed can will delay
It rushes on the outside of pillar and blocks；
It is connected between two connectors 18 by tie rod 24, the both ends of tie rod 24 are separately positioned on two clips 3 25
Corresponding site, tie rod 24 guarantee 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 end with two clips 4 26
It connects；
Pointer 20 is inverted L shape structure, and adapter 19 is connected close to the side on slope top with the bottom end of pointer 20；
(3) front-wheel outer sleeve is blocked dial plate component 1 on the outside of front-wheel outer cylinder, in the outer upper of damper leg 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
Difference in height in 1 minimum point and indicating hand component 2 between the highest point of support 34 should be greater than 100mm, the dial plate on front-wheel outer cylinder
Component 1 is remain stationary, and the rotation of damper leg drives indicating hand component 2 to move, and is read on dial plate 5 by the deflection of pointer 20
Deflection angle.
Advantages of the present invention: the present invention has unified measuring device in the detection benchmark of components stage and assembling stage and knot
Configuration formula reduces measurement difference, facilitates the consistency of detection direction rudder and front wheel positions；Pointer plays damper leg before being fixed on
On, keep the result of angle measurement more accurate；Between 0 ° -2 ° of Nose Wheel Steering or so, accuracy of identification is increased 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.
Detailed description of the invention
Fig. 1 is use structural schematic diagram of the invention；
Fig. 2 is dial plate component structure diagram of the present invention；
Fig. 3 is indicating hand component structural schematic diagram 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 support, and 35 be stationary bushing four.
Specific embodiment
A kind of measuring device for aircraft nose wheel deflection angle, which is characterized in that the device includes dial plate component 1, refers to
Needle assemblies 2, dial plate component 1 are fixed on the outside of front-wheel outer cylinder, for playing buffering before being used as measurement standard, indicating hand component 2 to be fixed on
Intermediate position on the outside of pillar, by the rotation of damper leg, indicating hand component 2 is able to reflect the deflection angle of wheel；
(1) dial plate component 1 is mainly including clip 1, clip 24, main dial plate 5, as shown in Figure 2:
Clip 1 and clip 24 pass through hinge axis 2 12, plain washer 2 13, the composition radial type structure of split pin 14 2；Card
Bind round 1 and clip 24 the other end by hinge axis 1, plain washer 1, split pin 1, eyelet bolt 1, wing nut
One 11 constitute detachable structure, convenient for opening；The inner space that clip 1 and clip 24 are formed after being closed can will be outside front-wheel
It blocks in cylinder outside；
Main dial plate 5 is sector structure, has dial scale in the arc side of sector structure, main dial plate 5 is far 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 cylinder.
(2) indicating hand component 2 is mainly including two connectors 18, adapter 19, pointer 20, tie rod 24, as shown in Figure 3；
Connector 18 is mainly made 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 detachable structure, convenient for opening；
It is connected between two connectors 18 by tie rod 24, the both ends of tie rod 24 are separately positioned on two clips 3 25
Corresponding site, connector 18 and tie rod 24 are connected by plain washer 3 22, hex nut 2 23, to guarantee relative position not
Become；
Adapter 19 is made of stationary bushing 3 33, support 34, stationary bushing 4 35, as shown in Figure 5.Support 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 is logical close to the side of slope bottom end and two clips 4 26
Burnished bolt 2 21, plain washer 3 22 are crossed, hex nut 2 23 is connected；
The connection of adapter 19 and pointer 20 is that adapter 19 passes through close to the side on slope top and the bottom end of pointer 20
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 cylinder, in the outer upper of damper leg 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
Difference in height in 1 minimum point and indicating hand component 2 between the highest point of support 34 should be greater than 100mm, the dial plate on front-wheel outer cylinder
Component 1 is remain stationary, and the rotation of damper leg drives indicating hand component 2 to move, and is read on dial plate 5 by the deflection of pointer 20
Deflection angle.
(4) present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
As shown in Figure 1, using when dial plate component 1 is fixed on front-wheel outer cylinder, indicating hand component 2 plays buffering branch before being mounted on
Column really reflects the deflection angle of wheel by the rotation angle of damper leg.
Operating process is as follows: all parts in the manufacture present invention；Measuring device of the invention is installed aboard；It will
Clip 1 and clip 24 in dial plate component 1 are fixed on front-wheel outer cylinder, and the connector 18 in indicating hand component 2 rises slow before being mounted on
It rushes pillar, carries out pointer 20 and main dial plate 5 to zero before movement, pass through the compression and rotation of pillar in motion process, to identify
The deflection angle of pointer 20.
Embodiment one
Since 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 cylinder, 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 axis center in 1, interior in a limited space to improve measurement
Precision, support 34 is 585mm away from damper leg axis center in indicating hand component 2, and dial plate component 1 and indicating hand component 2 are away from damper leg
The size of axis center is poor, and damper leg is played before preventing, and dial plate component 1 and indicating hand component 2 constitute interference during rotation.
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 stability.
Pointer structure is spirally connected as shown in fig. 6, connecting pin size is larger convenient for aperture, is increased between adapter
Stability；Being directed toward end is 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 measuring device of the invention, original state should meet: prop up in the minimum point of dial plate component 1 and indicating hand component 2
Difference in height between the highest point of seat 34 should be greater than 100mm, difference in height about 2mm between pointer 20 and dial plate 5, play buffering before avoiding
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 increased 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 during the motion, pointer 20 and subordinate list disk 6 rub damper leg in order to prevent,
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 measuring device for aircraft nose wheel deflection angle, which is characterized in that the device includes dial plate component (1), refers to
Needle assemblies (2), dial plate component (1) are fixed on the outside of front-wheel outer cylinder, for being used as measurement standard, before indicating hand component (2) is fixed on
The intermediate position on the outside of damper leg is played, by the rotation of damper leg, indicating hand component (2) is able to reflect the deflection angle of wheel
Degree；
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 cylinder；
Main dial plate (5) is sector structure, has dial scale in the arc side of sector structure, main dial plate (5) is far from dial scale
One end with clip two (4) is detachable is connected；
Indicating hand component (2) includes two connectors (18), adapter (19), pointer (20), tie rod (24)；
Connector (18) is made of clip three (25), clip four (26), and one end of clip three (25) and clip four (26) is hinged,
The other end of clip three (25) and clip four (26) is detachably connected, and is formed after clip three (25) and clip four (26) closure interior
Portion space can will block on the outside of damper leg；
It is connected between two connectors (18) by tie rod (24), the both ends of tie rod (24) are separately positioned on two clips three
(25) corresponding site, tie rod (24) guarantee that the relative position between two connectors (18) is constant；
Adapter (19) is the sloping structure of tool, side and two clip four (26) phases of the adapter (19) close to slope bottom end
Connection；
Pointer (20) is inverted L shape structure, and adapter (19) is connected close to the side on slope top with the bottom end of pointer (20)；
Front-wheel outer sleeve is blocked dial plate component (1) on the outside of front-wheel outer cylinder, in the outer upper of damper leg by indicating hand component
(2) two connectors (18) block damper leg outer lower portion respectively, dial plate component (1) and indicating hand component (2) coaxially, dial plate
Difference in height in the minimum point and indicating hand component (2) of component (1) between the highest point of support (34) should be greater than 100mm, outside front-wheel
Dial plate component (1) on cylinder is remain stationary, and the rotation of damper leg drives indicating hand component (2) movement, passes through the inclined of pointer (20)
Transfer the deflection angle read 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN107021244A CN107021244A (en) | 2017-08-08 |
| CN107021244B true CN107021244B (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| 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 |
| 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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| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10288399B2 (en) * | 2014-07-01 | 2019-05-14 | Sikorsky Aircraft Corporation | Blade geometry characterization tool |
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2017
- 2017-04-21 CN CN201710266351.0A patent/CN107021244B/en active Active
Patent Citations (3)
| 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 |
| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN107021244A (en) | 2017-08-08 |
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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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