CN106628206B - A kind of small rotating torque lightning protection structure - Google Patents
A kind of small rotating torque lightning protection structure Download PDFInfo
- Publication number
- CN106628206B CN106628206B CN201611161200.0A CN201611161200A CN106628206B CN 106628206 B CN106628206 B CN 106628206B CN 201611161200 A CN201611161200 A CN 201611161200A CN 106628206 B CN106628206 B CN 106628206B
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- Prior art keywords
- weathercock
- shell
- conductive pin
- rotating torque
- bearing
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- 239000000919 ceramic Substances 0.000 claims abstract description 19
- 238000009413 insulation Methods 0.000 claims description 4
- 208000025274 Lightning injury Diseases 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D45/02—Lightning protectors; Static dischargers
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Wind Motors (AREA)
Abstract
A kind of small rotating torque lightning protection structure includes weathercock (1), axis (2), ceramic bearing (3), shell (4) and conductive pin (5).In the bearing hole of ceramic bearing (3) installation shell (4), conductive pin (5) and shell (4) are fixed on shell (4), weathercock (1) is fixed on axis (2), and weathercock (1) is fixed on ceramic bearing (3) after connecting with axis (2).The configuration of the present invention is simple, ceramic bearing is easy to rotate, so that the rotating torque of weathercock is smaller, and when incidence vane is by being struck by lightning, point discharge is formed between conductive pin (5) and shell (4), makes electric current via on weathercock (1), conductive pin (5), shell (4) to airframe, to avoid energy the gathering on weathercock of lightning stroke, weathercock is damaged, there is larger practical application value.
Description
Technical field
The invention belongs to aircraft shocking preventing technologies, and in particular to a kind of small rotating torque lightning protection knot for incidence vane
Structure.
Background technique
For incidence vane in the survey aircraft angle of attack, the rotating torque to guarantee its weathercock is small, generally uses metal bearing
Support construction.And incidence vane belongs to the exposed equipment of aircraft, is subject to be struck by lightning, thunder-strike current is just via weathercock-axis-
On metal bearing-shell to airframe.Since the ball of metal bearing and its raceway contact resistance are big, according to formula, fever
Power P=I2R, because calorific value causes contact surface to melt greatly between ball and raceway, makes to roll when thunder-strike current flows through its contact surface
Road is welded together with ball, cannot relatively rotate, so that it is able to rotate weathercock not, incidence vane failure.
In order to avoid bearing lightning stroke when fail, common method be the part that will be contacted with bearing inner race and with outside bearing
The part ground strap connection that can bear thunder-strike current for enclosing contact, forms good conductive logical between bearing inner race and outer ring
Road when by being struck by lightning, makes to guide thunder-strike current to aircraft machine via ground strap connection that is, by bearing inner race and outer ring short circuit
On body, to protect metal bearing, raceway is avoided to be welded together with ball.But the structure increases the rotating torque of bearing
Greatly, it is not suitable in the incidence vane for requiring rotating torque small.
Summary of the invention
The object of the present invention is to provide a kind of small rotating torque lightning protection structures for incidence vane, attack for solving
Disabler problem after angle transducer is struck by lightning.
The technical scheme is that a kind of small rotating torque lightning protection structure comprising weathercock 1, axis 2, ceramic bearing 3,
Shell 4 and conductive pin 5, wherein weathercock 1 is fixed on ceramic bearing 3 after connecting with axis 2, and ceramic bearing 3 installs the axis of shell 4
In bearing bore, weathercock 1 and shell 4 is made to form insulation system, conductive pin 5 is mounted on shell 4, good conductive structure is formed, and
There are certain gaps between weathercock 1.
Gap between the conductive pin 5 and weathercock 1 is between 0.1mm~0.3mm.
The conductive pin 5 is cutting-edge structure.
It is fastening assembly between the conductive pin 5 and shell 4.
The invention has the advantages that the ceramic bearing 3 of the small rotating torque lightning protection structure of the present invention makes weathercock 1 and the formation of shell 4
Insulation system, can be to avoid metal bearing in lightning stroke using ceramic bearing 3, and thunder-strike current makes raceway be welded together with ball
And fail, meanwhile, ceramic bearing 3 is easy to rotate, so that the rotating torque of weathercock is smaller.It is formed between conductive pin 5 and shell 4 simultaneously
Good conductive structure, make electric current via on weathercock 1, conductive pin 5, shell 4 to airframe, avoid lightning stroke energy in weathercock
On gather, damage weathercock.The structure is simple, small to the structure type change of the former angle of attack, is suitble in existing incidence vane
It is promoted and applied.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the cutting-edge structure schematic diagram of conductive pin.
Specific embodiment
The present invention is described in further details below.
With reference to FIG. 1 to FIG. 2.The small rotating torque lightning protection structure of the present invention includes weathercock 1, axis 2, ceramic bearing 3,4 and of shell
Conductive pin 5.Wherein, weathercock 1 is fixed on ceramic bearing 3 after connecting with axis 2, and ceramic bearing 3 is installed in the bearing hole of shell 4.
The ceramic bearing 3 is easy to rotate in bearing hole, and rotating torque is smaller, to facilitate the rotation of weathercock.The conductive pin 5 with
Shell 4 is fixed on shell 4 by interference fit, the good conductive structure of formation.
After the assembly is completed, 1 bottom of weathercock and surface of shell are shown in that there are certain gaps, and between conductive pin 5
Gap is between 0.1mm~0.3mm, and the conductive pin is the cutting-edge structure that top is sphere, when by being struck by lightning, conductive pin
Gap between 5 and weathercock 1 can form point discharge effect.Generated electric current is via weathercock 1, conductive pin 5, shell 4 to aircraft
On body.And ceramic bearing 3 makes weathercock 1 and shell 4 form insulation system, avoids energy the gathering on weathercock of lightning stroke, makes
Weathercock damage.Ceramic bearing 3 completely cuts off electric current simultaneously, can be to avoid metal bearing in lightning stroke, and thunder-strike current makes raceway and ball
It is welded together and fails.
The structure of the small rotating torque lightning protection structure of the present invention is simple, cancels existing connection type of making contact, utilizes conductive pin
It discharges with the point discharge effect of weathercock, it is small to the structure type change of the former angle of attack, and make contact due to not using, wind
Mark can facilitate rotation with bearing, and rotating torque is small, be suitble to be promoted and applied in existing incidence vane, have biggish reality
Border application value.
Claims (4)
1. a kind of small rotating torque lightning protection structure, characterized in that including weathercock (1), axis (2), ceramic bearing (3), shell (4) and
Conductive pin (5), wherein weathercock (1) is fixed on ceramic bearing (3) after connecting with axis (2), and ceramic bearing (3) is mounted on shell
(4) in bearing hole, weathercock (1) and shell (4) is made to form insulation system, conductive pin (5) is mounted on shell (4), is formed good
Good conductive structure, and there are certain gaps between weathercock (1).
2. small rotating torque lightning protection structure according to claim 1, characterized in that between the conductive pin (5) and weathercock (1)
Gap be 0.1mm~0.3mm.
3. small rotating torque lightning protection structure according to claim 1, characterized in that the conductive pin (5) is cutting-edge structure.
4. small rotating torque lightning protection structure according to claim 1, characterized in that the conductive pin (5) and shell (4) it
Between for fastening assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611161200.0A CN106628206B (en) | 2016-12-15 | 2016-12-15 | A kind of small rotating torque lightning protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611161200.0A CN106628206B (en) | 2016-12-15 | 2016-12-15 | A kind of small rotating torque lightning protection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106628206A CN106628206A (en) | 2017-05-10 |
| CN106628206B true CN106628206B (en) | 2019-01-15 |
Family
ID=58823656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611161200.0A Active CN106628206B (en) | 2016-12-15 | 2016-12-15 | A kind of small rotating torque lightning protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106628206B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10730637B2 (en) | 2017-09-29 | 2020-08-04 | Rosemount Aerospace Inc. | Integral vane base angle of attack sensor |
| US11181545B2 (en) | 2017-08-17 | 2021-11-23 | Rosemount Aerospace Inc. | Angle of attack sensor with thermal enhancement |
| US10393766B2 (en) | 2017-08-17 | 2019-08-27 | Rosemount Aerospace Inc. | Water management system for angle of attack sensors |
| US11162970B2 (en) | 2019-06-17 | 2021-11-02 | Rosemount Aerospace Inc. | Angle of attack sensor |
| US11649057B2 (en) | 2019-12-13 | 2023-05-16 | Rosemount Aerospace Inc. | Static plate heating arrangement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204007586U (en) * | 2014-06-10 | 2014-12-10 | 中国商用飞机有限责任公司 | Microminiature angle of attack sensor |
| CN204297107U (en) * | 2014-11-19 | 2015-04-29 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft incidence vane protective device |
| CN104986355A (en) * | 2015-07-14 | 2015-10-21 | 中航飞机股份有限公司西安飞机分公司 | Giving method and giving device of aircraft incidence angle |
| US20150364887A1 (en) * | 2014-06-12 | 2015-12-17 | Kamatics Corporation | Electrically conductive bearing system and method |
| CN106032169A (en) * | 2015-03-13 | 2016-10-19 | 空客(北京)工程技术中心有限公司 | Static discharger, aircraft, and installation method for static discharger |
-
2016
- 2016-12-15 CN CN201611161200.0A patent/CN106628206B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204007586U (en) * | 2014-06-10 | 2014-12-10 | 中国商用飞机有限责任公司 | Microminiature angle of attack sensor |
| US20150364887A1 (en) * | 2014-06-12 | 2015-12-17 | Kamatics Corporation | Electrically conductive bearing system and method |
| CN204297107U (en) * | 2014-11-19 | 2015-04-29 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft incidence vane protective device |
| CN106032169A (en) * | 2015-03-13 | 2016-10-19 | 空客(北京)工程技术中心有限公司 | Static discharger, aircraft, and installation method for static discharger |
| CN104986355A (en) * | 2015-07-14 | 2015-10-21 | 中航飞机股份有限公司西安飞机分公司 | Giving method and giving device of aircraft incidence angle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106628206A (en) | 2017-05-10 |
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