CN105015788B - A kind of undercarriage - Google Patents
A kind of undercarriage Download PDFInfo
- Publication number
- CN105015788B CN105015788B CN201410160280.2A CN201410160280A CN105015788B CN 105015788 B CN105015788 B CN 105015788B CN 201410160280 A CN201410160280 A CN 201410160280A CN 105015788 B CN105015788 B CN 105015788B
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- CN
- China
- Prior art keywords
- detection device
- undercarriage
- gear tyre
- gear
- tyre
- 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.)
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- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention provides a kind of undercarriage, including undercarriage outer barrel（1）And gear tyre（3）, it is characterised in that also including detection device（2）, detection device（2）Using laser range finder, detection device（2）Installed in undercarriage outer barrel（1）It is upper to be located at gear tyre（3）Top position, detection device（2）The laser beam and gear tyre sent（3）The outer rim end face of both sides is parallel, works as gear tyre（3）When unearthed, detection device（2）The laser beam sent is not by gear tyre（3）Block, work as gear tyre（3）During ground connection, detection device（2）The laser beam sent is by gear tyre（3）Block.
Description
Technical field
Aircraft component field of the present invention.
Background technology
Existing undercarriage combines the modes such as mechanical contact making device or electromagnetic induction using microswitch more, judges that undercarriage is
No ground connection.It is smaller in the undercarriage decrement that lands, it is difficult to rapidly and accurately carry out with reference to mechanical contact making device using microswitch
Sensing.The external other equipment of way of electromagnetic induction needs, structure are complex.
The content of the invention
The technical problem to be solved in the present invention：
There is provided a kind of simple in construction, in light weight, good manufacturability and working service cost low undercarriage ground signalling device,
It is stable to export undercarriage ground signalling when undercarriage buffer decrement is smaller, meet the requirement of aircraft.
Technical scheme：
A kind of undercarriage, including undercarriage outer barrel and gear tyre, it is characterised in that also including detection device, detection
Device uses laser range finder, and detection device, which is arranged on undercarriage outer barrel, is located at gear tyre top position, detection device
The laser beam sent is parallel with the outer rim end face of gear tyre both sides, when gear tyre is unearthed, detection device hair
The laser beam gone out is not blocked by gear tyre, and when gear tyre is grounded, the laser beam that detection device is sent is risen
Fall frame tire to block.
Beneficial effects of the present invention：
Using the principle of laser ranging, take off, landing ground taxi when, the change of detection gear tyre compression
Amount, the control device that signal is fed back on machine（Computer）, provide ground contact signal by calculating to compare, there is provided to anti-skidding
The systems such as brake, Nose Wheel Steering, being allowed to can normal work.
The present invention relates to the Landing Gear System of a kind of baby plane, helicopter or unmanned plane, its advantage is：
1) deft design, it is simple and compact for structure, it is in light weight, it can adapt to the use of baby plane, helicopter or unmanned plane
Feature, meet requirement；
2) when aircraft is in ground taxi, in the case of empty machine or small weight or lift are larger, it is difficult to be delayed by undercarriage
Rush device compression and realize that microswitch or electromagnetic induction device set out and provide aircraft quiet earth signal.And the compression variation of tire will
Compressed than undercarriage buffer much bigger.By measuring the delta data of tire, to growing, frame buffer is uncompressed or decrement
Ground signalling when smaller, meet the work requirements of the systems such as antiskid brake, Nose Wheel Steering.
Brief description of the drawings
Fig. 1 is view when undercarriage is unearthed；
Fig. 2 is view when undercarriage is grounded.
Embodiment
The present invention is explained further below below in conjunction with Figure of description,
The undercarriage of the present invention, including undercarriage outer barrel 1 and gear tyre 3, it is characterised in that also including detection device
2, detection device 2 uses laser range finder, and detection device 2, which is arranged on undercarriage outer barrel 1, is located at the upper position of gear tyre 3
Put, the laser beam that detection device 2 is sent is parallel with the outer rim end face of the both sides of gear tyre 3, when gear tyre 3 is unearthed
When, the laser beam that detection device 2 is sent is not blocked by gear tyre 3, and when gear tyre 3 is grounded, detection device 2 is sent out
The laser beam gone out is blocked by gear tyre 3.
The course of work of the present invention program.
Detection device 2 is arranged in the fixed component of undercarriage（It may be generally mounted at the outer barrel of undercarriage damper leg
On）.In the full elongation state of undercarriage, the position of adjustment detection device 2.When take off, landing ground taxi when, undercarriage wheel
Tire 3 is compressed, and the contour dimension of gear tyre 3 changes.The light beam of detection device 2 gets to gear tyre 3, detects
The variable quantity that gear tyre 3 compresses, the control device that signal is fed back on machine（Computer）, by calculate compare provide it is winged
Machine ground signalling, there is provided the system of ground signalling is needed to antiskid brake, Nose Wheel Steering etc., being allowed to can normal work.
Claims (1)
1. a kind of undercarriage, including undercarriage outer barrel（1）And gear tyre（3）, it is characterised in that also including detection device
（2）, detection device（2）Using laser range finder, detection device（2）Installed in undercarriage outer barrel（1）It is upper to be located at gear tyre
（3）Top position, detection device（2）The laser beam and gear tyre sent（3）The outer rim end face of both sides is parallel, when rising and falling
Frame tire（3）When unearthed, detection device（2）The laser beam sent is not by gear tyre（3）Block, work as gear tyre
（3）During ground connection, detection device（2）The laser beam sent is by gear tyre（3）Block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410160280.2A CN105015788B (en) | 2014-04-21 | 2014-04-21 | A kind of undercarriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410160280.2A CN105015788B (en) | 2014-04-21 | 2014-04-21 | A kind of undercarriage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105015788A CN105015788A (en) | 2015-11-04 |
| CN105015788B true CN105015788B (en) | 2017-12-12 |
Family
ID=54406180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410160280.2A Active CN105015788B (en) | 2014-04-21 | 2014-04-21 | A kind of undercarriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105015788B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793552A (en) * | 2019-10-11 | 2020-02-14 | 中国直升机设计研究所 | Helicopter lift-off detection system and detection method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393822Y (en) * | 1999-09-02 | 2000-08-30 | 吴大方 | Apparatus for testing instantaneous rpm of landing vibration test of landing gears |
| CN2419590Y (en) * | 1999-10-28 | 2001-02-14 | 北京航空航天大学 | Device for testing range of buffer for undercarriage unit landing shocks |
| EP1660851B1 (en) * | 2003-08-27 | 2017-10-25 | Airbus Operations Limited | Optically measuring the displacement or load for an aircraft component, landing gear, braking control |
| CN203512028U (en) * | 2013-07-22 | 2014-04-02 | 江西昌兴航空装备有限公司 | Undercarriage folding and unfolding device for airplane |
| CN104670666B (en) * | 2015-02-27 | 2016-10-05 | 中国民航大学 | A kind of aircraft landing attitude warning system and warning control method |
-
2014
- 2014-04-21 CN CN201410160280.2A patent/CN105015788B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105015788A (en) | 2015-11-04 |
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| GR01 | Patent grant |