CN104215444B - A kind of bearingless rotor flexible beam centrifuges force loading device - Google Patents
A kind of bearingless rotor flexible beam centrifuges force loading device Download PDFInfo
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- CN104215444B CN104215444B CN201410424978.0A CN201410424978A CN104215444B CN 104215444 B CN104215444 B CN 104215444B CN 201410424978 A CN201410424978 A CN 201410424978A CN 104215444 B CN104215444 B CN 104215444B
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- flexible beam
- centrifugal force
- rolling bearing
- housing
- bearing
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Abstract
The invention belongs to bearingless rotor flexible beam fatigue test technology, is related to a kind of bearingless rotor flexible beam fatigue experimental device design.It is characterised in that it includes centrifugal force housing, thrust ball bearing, rolling bearing, cover plate, flexible beam splice and locking nut；Centrifugal force housing is frame-shaped construction, bearing mounting hole is provided with one side, flexible beam splice one end is stairstepping rotary shaft, cover plate is round boss structure, centre is through hole, and rolling bearing is installed on the bearing mounting hole of centrifugal force housing, and cover plate boss is pressed in the outer ring of rolling bearing, flexible beam splice is connected to centrifugal force housing on through rolling bearing and by thrust ball bearing, and test load is applied by connected executing agency.The present invention can not influence the loading of moment of torsion while centrifugal force is applied, and reach the purpose of examination bearingless rotor flexible beam fatigue behaviour.
Description
Technical field
The invention belongs to helicopter bearingless rotor flexible beam fatigue test technology, it is related to a kind of helicopter bearingless rotor
Flexible beam fatigue experimental device designs.
Background technology
Bearingless rotor flexible beam is bearingless rotor critical component, and the project belongs to rotor system dynamic components fatigue test
Technical field, it is one of emphasis core technology of forth generation ball flexible rotor system dynamic component fatigue test.It is shaftless in order to grasp
Rotor flexible beam fatigue behaviour is held, it is necessary to carry out fatigue test in face of bearingless rotor flexible beam on ground, grasps bearingless rotor
Flexible beam fatigue properties, and then provide the life-span of bearingless rotor flexible beam.
At present, the not main oar bearingless rotor flexible beam fatigue experimental device in China, it is impossible to carry out this experiment.Do not retrieve
Abroad relevant open source literature.
The content of the invention
The purpose of the present invention is：A kind of bearingless rotor flexible beam centrifugation force loading device is designed, reaches examination bearing-free
The purpose of rotor flexible beam fatigue behaviour.
The technical scheme is that：A kind of bearingless rotor flexible beam centrifuges force loading device, it is characterised in that including
Centrifugal force housing 1, thrust ball bearing 2, rolling bearing 3, cover plate 4, flexible beam splice 5 and locking nut 6；Centrifugal force housing 1 is
Frame-shaped construction, bearing mounting hole 7 is provided with one side, flexible one end of beam splice 5 is stairstepping rotary shaft, and cover plate 4 is circular convex
Platform structure, centre is through hole, and rolling bearing 3 is installed on the bearing mounting hole of centrifugal force housing 1, and the boss of cover plate 4 is pressed in rolling
The outer ring of bearing 3, flexible beam splice 5 are connected to centrifugal force housing 1 on through rolling bearing 3 and by thrust ball bearing 2, are tested
Load is applied by connected executing agency.
The centrifugal force housing is front and rear symmetrical about 1.
The endoporus of the cover plate 4 is more than the internal diameter of rolling bearing 3, and boss is pressed in the outer ring of rolling bearing 3.
The cover plate 4 is fixed to centrifugal force housing 1 by dormant bolt.
The thrust ball bearing 2 is installed to centrifugal force joint 5 and fixed by locking nut 6.
The axis of the bearing mounting hole 7 is located on the intersection of the symmetrical plane of centrifugal force housing 1.
The thrust ball bearing 2 allows for bearing axial force without influenceing freely rotating for centrifugal force joint 5.
The rolling bearing 3 must be able to bear radial load without influenceing freely rotating for centrifugal force joint 5.
It is an advantage of the invention that：The present invention can not influence the loading of moment of torsion while centrifugal force is applied, and reach examination
The purpose of bearingless rotor flexible beam fatigue behaviour.
Brief description of the drawings
Fig. 1 is the schematic diagram of centrifugal force housing 1.
Fig. 2 is the schematic diagram of cover plate 4.
Fig. 3 is the flexible schematic diagram of beam splice 5.
Fig. 4 is assembling schematic cross-sectional view.
Fig. 5 is assembling schematic diagram.
Embodiment
The present invention is described in further details referring to Fig. 4, Fig. 5.The bearingless rotor flexible beam centrifugal force adds
Carry and put, be made up of centrifugal force housing 1, thrust ball bearing 2, rolling bearing 3, cover plate 4, flexible beam splice 5, locking nut 6；Its
It is frame-shaped construction to be characterised by centrifugal force housing 1, and frame-shaped construction is front and rear symmetrical up and down, and bearing mounting hole, axle are provided with one side
The axis for holding mounting hole is located on the intersection of the symmetrical plane of centrifugal force housing 1, and flexible one end of beam splice 5 is stairstepping rotary shaft,
Cover plate 4 is round boss structure, and centre is through hole, and rolling bearing 3 is installed on the bearing mounting hole of centrifugal force housing 1, cover plate 4
Boss is pressed in the outer ring of rolling bearing 3, and flexible beam splice 5 through rolling bearing 3 and is connected to centrifugal force by thrust ball bearing 2
On housing 1, test load is applied by connected executing agency.
The endoporus of the cover plate 4 is more than the internal diameter of rolling bearing 3, and boss is pressed in the outer ring of rolling bearing 3.
The cover plate 4 is fixed to centrifugal force housing 1 by dormant bolt.
The thrust ball bearing 2 is installed to centrifugal force joint 5 and fixed by locking nut 6
The thrust ball bearing 2 allows for bearing axial force without influenceing freely rotating for centrifugal force joint 5.
The rolling bearing 3 must be able to bear radial load without influenceing freely rotating for centrifugal force joint 5.
Claims (6)
1. a kind of bearingless rotor flexible beam centrifuges force loading device, it is characterised in that including centrifugal force housing (1), thrust ball
Bearing (2), rolling bearing (3), cover plate (4), flexible beam splice (5) and locking nut (6)；Centrifugal force housing (1) is frame shape knot
Structure, bearing mounting hole (7) is provided with one side, flexible beam splice (5) one end is stairstepping rotary shaft, and cover plate (4) is circular convex
Platform structure, centre is through hole, and rolling bearing (3) is installed on the bearing mounting hole of centrifugal force housing (1), cover plate (4) boss pressure
In the outer ring of rolling bearing (3), flexible beam splice (5) through rolling bearing (3) and is connected to centrifugation by thrust ball bearing (2)
On power housing (1), test load is applied by connected executing agency.
A kind of 2. bearingless rotor flexible beam centrifugation force loading device according to claim 1, it is characterised in that it is described from
Mental and physical efforts housing (1) is front and rear symmetrical up and down.
A kind of 3. bearingless rotor flexible beam centrifugation force loading device according to claim 1, it is characterised in that the lid
The endoporus of plate (4) is more than the internal diameter of rolling bearing (3), and boss is pressed in the outer ring of rolling bearing (3).
A kind of 4. bearingless rotor flexible beam centrifugation force loading device according to claim 1, it is characterised in that：The lid
Plate (4) is fixed to centrifugal force housing (1) by dormant bolt.
A kind of 5. bearingless rotor flexible beam centrifugation force loading device according to claim 1, it is characterised in that：It is described to push away
Power ball bearing (2) is installed to centrifugal force joint (5) and fixed by locking nut (6).
A kind of 6. bearingless rotor flexible beam centrifugation force loading device according to claim 1, it is characterised in that：The axle
The axis for holding mounting hole (7) is located on the intersection of centrifugal force housing (1) symmetrical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424978.0A CN104215444B (en) | 2014-08-26 | 2014-08-26 | A kind of bearingless rotor flexible beam centrifuges force loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424978.0A CN104215444B (en) | 2014-08-26 | 2014-08-26 | A kind of bearingless rotor flexible beam centrifuges force loading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104215444A CN104215444A (en) | 2014-12-17 |
| CN104215444B true CN104215444B (en) | 2018-02-23 |
Family
ID=52097167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410424978.0A Active CN104215444B (en) | 2014-08-26 | 2014-08-26 | A kind of bearingless rotor flexible beam centrifuges force loading device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104215444B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802234A (en) * | 2015-11-26 | 2017-06-06 | 中国直升机设计研究所 | A kind of main oar center piece three-dimensional loading device of bearingless rotor |
| CN105890854B (en) * | 2016-04-01 | 2018-07-24 | 哈尔滨飞机工业集团有限责任公司 | A kind of stiffness measurement method of helicopter flexible beam fatigue test |
| CN108839818B (en) * | 2018-06-26 | 2021-08-13 | 中国直升机设计研究所 | Air resonance test method for bearingless rotor |
| CN112504869B (en) * | 2020-11-20 | 2023-09-08 | 中国直升机设计研究所 | Loading device for flexible material |
| CN114166490B (en) * | 2021-11-23 | 2023-05-23 | 中国直升机设计研究所 | Centrifugal force separation type loading test device for main rotor center piece of rigid rotor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201271653Y (en) * | 2008-07-16 | 2009-07-15 | 襄樊振本传动设备有限公司 | Traveling type revolving joint |
| CN201884459U (en) * | 2010-02-04 | 2011-06-29 | 鲁国裕 | Radial and thrust combined rolling bearing |
| CN102180265A (en) * | 2011-04-12 | 2011-09-14 | 陶红明 | Helicopter without rotor wing using centrifugal force as lifting force |
| US8516885B1 (en) * | 2009-01-12 | 2013-08-27 | Doug Fortune | Rotating object dynamic balancing system and method |
-
2014
- 2014-08-26 CN CN201410424978.0A patent/CN104215444B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201271653Y (en) * | 2008-07-16 | 2009-07-15 | 襄樊振本传动设备有限公司 | Traveling type revolving joint |
| US8516885B1 (en) * | 2009-01-12 | 2013-08-27 | Doug Fortune | Rotating object dynamic balancing system and method |
| CN201884459U (en) * | 2010-02-04 | 2011-06-29 | 鲁国裕 | Radial and thrust combined rolling bearing |
| CN102180265A (en) * | 2011-04-12 | 2011-09-14 | 陶红明 | Helicopter without rotor wing using centrifugal force as lifting force |
Non-Patent Citations (2)
| Title |
|---|
| 主桨毂中央件疲劳试验技术研究;姚海涛 等;《直升机技术》;20081231(第154期);第51-54页 * |
| 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》;20091231(第159期);第98-103页 * |
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|---|---|
| CN104215444A (en) | 2014-12-17 |
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