CN104215442B - A kind of tail-rotor leaf oversleeve is centrifuged force loading device - Google Patents
A kind of tail-rotor leaf oversleeve is centrifuged force loading device Download PDFInfo
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- CN104215442B CN104215442B CN201410424784.0A CN201410424784A CN104215442B CN 104215442 B CN104215442 B CN 104215442B CN 201410424784 A CN201410424784 A CN 201410424784A CN 104215442 B CN104215442 B CN 104215442B
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- oversleeve
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- arbor
- connecting plate
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Abstract
A kind of tail-rotor leaf oversleeve is centrifuged force loading device, belong to helicopter tail rotor leaf fatigue test technology, it is characterized in that, including spring, spring connecting bolt, spring connection fork ear, dynamometer link, adjusting rod, band arbor holds, connecting plate, bearing connecting bolt, blade oversleeve connecting plate, adjusting nut and Intermediate Gray arbor hold, spring one end is connected fork ear connection with spring, dynamometer link is connected through a screw thread spring connection fork ear and adjusting rod, and adjusting rod holds with band arbor and is connected through a screw thread；There is hole on connecting plate, band arbor is held and is connected with connecting plate by bearing connecting bolt；Band arbor holds and can be rotated around bearing connecting bolt, and Intermediate Gray arbor holds one end insertion connecting plate, and is connected by bearing connecting bolt, and the other end is connected with blade oversleeve connecting plate, and the size of blade oversleeve centrifugal force can be adjusted by adjusting nut.Present invention simulation tail-rotor leaf oversleeve stress, test load is applied by spring to oversleeve, reaches the purpose of examination tail-rotor leaf fatigue behaviour.
Description
Technical field
The invention belongs to helicopter tail rotor leaf fatigue test technology, it is related to a kind of helicopter tail rotor leaf oversleeve centrifugal force to load
Device is designed.
Background technology
Tail-rotor leaf is tail-rotor important component, in order to grasp tail-rotor leaf fatigue behaviour, it is necessary to be carried out in face of tail-rotor leaf on ground tired
Labor is tested, and grasps tail-rotor leaf fatigue properties, and then provide the life-span of tail-rotor leaf.Because helicopter is in flight, tail-rotor leaf oversleeve
The centrifugal force from tail-rotor leaf, therefore stress when needing simulated flight in fatigue test are born, tail-rotor foliar spray is given
Plus centrifugal force.
At present, China does not have similar experimental rig, it is impossible to carry out this loading.Abroad relevant disclosure is not retrieved
Document.
The content of the invention
The technical problem to be solved in the present invention：A kind of helicopter tail rotor leaf oversleeve centrifugation force loading device is designed, tail is simulated
Stress when blade oversleeve is installed, to tail-rotor leaf oversleeve imposed load, can reach the purpose of examination tail-rotor leaf fatigue behaviour.
Technical scheme：A kind of tail-rotor leaf oversleeve is centrifuged force loading device, and technical scheme includes：Bullet
Spring, spring connecting bolt, spring connection fork ear, dynamometer link, adjusting rod, band arbor hold, connecting plate, clutch shaft bearing connecting bolt,
Second bearing connecting bolt, blade oversleeve connecting plate, adjusting nut, Intermediate Gray arbor hold composition.Both ends of the spring has crotch, one
End is fixed by crotch, and one end is connected fork ear with spring and connects by spring connecting bolt, and dynamometer link is connected through a screw thread spring
Connection fork ear and adjusting rod, by rotating dynamometer link, thus it is possible to vary apply the size of centrifugal force on tail-rotor leaf oversleeve.Adjusting rod is another
There is screwed hole one end, and band arbor holds one end screw thread, and adjusting rod holds with band arbor and is connected through a screw thread.There are hole, band on connecting plate
Arbor socket joint enters in connecting plate, and is connected with connecting plate by clutch shaft bearing connecting bolt.Band arbor holds can be around first axle
Hold connecting bolt rotation.Intermediate Gray arbor holds one end insertion connecting plate, and is connected by second bearing connecting bolt, Intermediate Gray handle
The bearing other end is connected with blade oversleeve connecting plate, and the size of blade oversleeve centrifugal force can be adjusted by adjusting nut.
Described being held on the handle held with Intermediate Gray arbor with arbor has external screw thread.
Beneficial effects of the present invention：Simulation tail-rotor leaf oversleeve stress, test load is applied by spring to oversleeve, is reached
To the purpose of examination tail-rotor leaf fatigue behaviour.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Specific embodiment
The present invention is described in further details below.
As shown in figure 1, the present invention is centrifuged force loading device for a kind of tail-rotor leaf oversleeve, including：Spring 1, spring connects spiral shell
Bolt 2, spring connection fork ear 3, dynamometer link 4, adjusting rod 5, band arbor hold 6, connecting plate 7, clutch shaft bearing connecting bolt 81, the second axle
Connecting bolt 82, blade oversleeve connecting plate 9, adjusting nut 10 are held, Intermediate Gray arbor holds 11 compositions, and there is crotch at the two ends of spring 1,
One end is fixed by crotch, and one end is connected fork ear 3 with spring and connects by spring connecting bolt 2, and dynamometer link 4 is connected through a screw thread
Spring connection fork ear 3 and adjusting rod 5, by rotating dynamometer link 4, thus it is possible to vary apply the size of centrifugal force on tail-rotor leaf oversleeve.
The other end of adjusting rod 5 has screwed hole, and band arbor holds one end screw thread, and adjusting rod 5 holds 6 and is connected through a screw thread with band arbor.Connection
There is hole on plate 7, band arbor is held in 6 insertion connecting plates, and is connected with connecting plate 7 by clutch shaft bearing connecting bolt 81.Band arbor
Holding 6 can rotate around clutch shaft bearing connecting bolt 81.Intermediate Gray arbor holds 11 one end insertion connecting plate 7, and by the second axle
Hold connecting bolt 82 to connect, adjusting nut 10 and Intermediate Gray arbor hold 11 threaded connections, adjusting nut 10 adjust blade oversleeve from
The size of mental and physical efforts.
Specifically, the dynamometer link 4 is connected through a screw thread spring connection fork ear 3 and the mode of adjusting rod 5 is：Dynamometer link 4
One end is left-hand thread hole, and one end is right-hand thread hole, and there is right-hand thread spring connection fork ear 3 one end, and there is left-hand thread the one end of adjusting rod 5.
Or, the dynamometer link 4 is connected through a screw thread spring connection fork ear 3 and the mode of adjusting rod 5 is：Dynamometer link 4 one
It is left-hand thread hole to hold, and one end is right-hand thread hole, and there is left-hand thread spring connection fork ear 3 one end, and there is right-hand thread the one end of adjusting rod 5.
The connecting plate 7 can be veneer or many plates.
The dynamometer link 4 is straight-bar or knee.
The adjusting rod 5 is straight-bar or knee.
It is described with arbor hold 6 and Intermediate Gray arbor hold on 11 handle and have external screw thread.
Claims (8)
1. a kind of tail-rotor leaf oversleeve is centrifuged force loading device, it is characterised in that including spring (1), spring connecting bolt (2), bullet
Spring connection fork ear (3), dynamometer link (4), adjusting rod (5), band arbor hold (6), connecting plate (7), clutch shaft bearing connecting bolt (81),
Second bearing connecting bolt (82), blade oversleeve connecting plate (9), adjusting nut (10) and Intermediate Gray arbor hold (11), spring (1)
One end is connected fork ear (3) with spring and connects by spring connecting bolt (2), and dynamometer link (4) is connected through a screw thread spring connection fork
Ear (3) and adjusting rod (5), adjusting rod (5) hold (6) and are connected through a screw thread with band arbor；There is hole on connecting plate (7), band arbor holds
(6) it is connected with connecting plate (7) by clutch shaft bearing connecting bolt (81)；Band arbor holds (6) and can connect spiral shell around clutch shaft bearing
Bolt (81) is rotated, and Intermediate Gray arbor holds (11) one end and inserts connecting plate (7), and is connected by second bearing connecting bolt (82),
Intermediate Gray arbor holds (11) other end and is connected with blade oversleeve connecting plate (9), and adjusting nut (10) holds (11) with Intermediate Gray arbor
Threaded connection, adjusting nut (10) adjusts the size of blade oversleeve centrifugal force.
2. tail-rotor leaf oversleeve according to claim 1 is centrifuged force loading device, it is characterised in that spring (1) two ends
Crotch is carried, spring (1) other end is fixed by crotch.
3. tail-rotor leaf oversleeve according to claim 1 is centrifuged force loading device, it is characterised in that the dynamometer link (4) is led to
Cross threaded connection spring connection fork ear (3) and the structure type of adjusting rod (5) is：Dynamometer link (4) one end is left-hand thread hole, one end
It is right-hand thread hole, there is right-hand thread spring connection fork ear (3) one end, and there is left-hand thread adjusting rod (5) one end.
4. tail-rotor leaf oversleeve according to claim 1 is centrifuged force loading device, it is characterised in that the dynamometer link (4) is led to
Cross threaded connection spring connection fork ear (3) and the structure type of adjusting rod (5) is：Dynamometer link (4) one end is left-hand thread hole, one end
It is right-hand thread hole, there is left-hand thread spring connection fork ear (3) one end, and there is right-hand thread adjusting rod (5) one end.
5. tail-rotor leaf oversleeve according to claim 1 is centrifuged force loading device, it is characterised in that the connecting plate (7) can
Think veneer or many plates.
6. tail-rotor leaf oversleeve according to claim 1 centrifugation force loading device, it is characterised in that the dynamometer link (4) is
Straight-bar or knee.
7. tail-rotor leaf oversleeve according to claim 1 centrifugation force loading device, it is characterised in that the adjusting rod (5) is
Straight-bar or knee.
8. tail-rotor leaf oversleeve according to claim 1 is centrifuged force loading device, it is characterised in that the band arbor holds (6)
There is external screw thread with the handle that Intermediate Gray arbor holds (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424784.0A CN104215442B (en) | 2014-08-26 | 2014-08-26 | A kind of tail-rotor leaf oversleeve is centrifuged force loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424784.0A CN104215442B (en) | 2014-08-26 | 2014-08-26 | A kind of tail-rotor leaf oversleeve is centrifuged force loading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104215442A CN104215442A (en) | 2014-12-17 |
| CN104215442B true CN104215442B (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410424784.0A Active CN104215442B (en) | 2014-08-26 | 2014-08-26 | A kind of tail-rotor leaf oversleeve is centrifuged force loading device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644450B (en) * | 2017-01-10 | 2023-10-10 | 北京强度环境研究所 | Anti-rotation adjusting device for centrifugal test |
| CN110411722B (en) * | 2019-07-26 | 2021-07-09 | 中国航发沈阳发动机研究所 | Structural static force and fatigue test device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2028591C1 (en) * | 1990-07-02 | 1995-02-09 | Московский вертолетный завод им.М.Л.Миля | Stand for member dynamic tests |
| RU2034257C1 (en) * | 1991-06-24 | 1995-04-30 | Вертолетный научно-технический комплекс им.Н.И.Камова | Method of testing the helicopter rotor members and test stand for its realization |
| CN101363770A (en) * | 2008-10-08 | 2009-02-11 | 燕山大学 | Fatigue-tesing machine for ball socket bearing of helicopter main rotor |
| CN103439096A (en) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | Helicopter tail rotor booster fatigue test system |
-
2014
- 2014-08-26 CN CN201410424784.0A patent/CN104215442B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2028591C1 (en) * | 1990-07-02 | 1995-02-09 | Московский вертолетный завод им.М.Л.Миля | Stand for member dynamic tests |
| RU2034257C1 (en) * | 1991-06-24 | 1995-04-30 | Вертолетный научно-технический комплекс им.Н.И.Камова | Method of testing the helicopter rotor members and test stand for its realization |
| CN101363770A (en) * | 2008-10-08 | 2009-02-11 | 燕山大学 | Fatigue-tesing machine for ball socket bearing of helicopter main rotor |
| CN103439096A (en) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | Helicopter tail rotor booster fatigue test system |
Non-Patent Citations (1)
| Title |
|---|
| 直升机球柔性尾桨桨毂连接件疲劳试验技术研究;夏国旺等;《直升机技术》;20090930(第3期);第98-103页 * |
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| Publication number | Publication date |
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| CN104215442A (en) | 2014-12-17 |
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