CN209023102U - It is a kind of to wave stopper mechanism for unmanned helicopter seesaw propeller hub - Google Patents
It is a kind of to wave stopper mechanism for unmanned helicopter seesaw propeller hub Download PDFInfo
- Publication number
- CN209023102U CN209023102U CN201821474852.4U CN201821474852U CN209023102U CN 209023102 U CN209023102 U CN 209023102U CN 201821474852 U CN201821474852 U CN 201821474852U CN 209023102 U CN209023102 U CN 209023102U
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- CN
- China
- Prior art keywords
- propeller hub
- restraint
- bolt
- waving
- rotor shaft
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- 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.)
- Expired - Fee Related
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Abstract
Stopper mechanism is waved for unmanned helicopter seesaw propeller hub the utility model relates to a kind of, the seesaw propeller hub especially suitable for small-sized unmanned helicopter.Including rotor shaft, propeller hub center part, flapping hinge and bridle is waved, flapping hinge is formed by waving bolt and waving washer, and propeller hub center part is connected by waving bolt with rotor shaft, and propeller hub center part can be rotated around bolt is waved；Washer is waved waving to be equipped between bolt and rotor shaft, for reducing sliding friction；It waves bridle to be arranged in flapping hinge opposite side, waves bridle and be made of restraint outer ring, restraint inner ring and restraint bolt, restraint bolt passes through restraint inner ring and restraint outer ring is connected with rotor shaft.When propeller hub carries out small angle oscillation, hub moment is transmitted in rotor shaft by waving bolt and restraint bolt, to increase the operating torque to full machine center of gravity, enhances maneuverability.
Description
Technical field
Stopper mechanism is waved for unmanned helicopter seesaw propeller hub the utility model relates to a kind of, especially suitable for light
The seesaw propeller hub of small-sized depopulated helicopter.
Background technique
With the continuous maturation of flight control technique and engine technology, small-sized unmanned helicopter is got in the application of civil field
Come more extensive.
These unmanned helicopters generally use teetering rotor system, mainly since teetering rotor only has two panels paddle
Leaf, propeller hub structure is simple, light-weight, manufacturing cost is low.
The propeller hub of conventional teetering rotor connects two panels blade by propeller hub center part, and central part passes through flapping hinge and rotor shaft
Connection, can swing up and down around flapping hinge, realize that the manipulation of rotor is waved or dry flapping action.But due to there is depositing for flapping hinge
Torque caused by tilting in, paddle disk can not be transmitted to rotor shaft, and only rotor power can be transmitted to rotor shaft, thus the manipulation of full machine
Torque only rotor power can provide, and cause the helicopter control of teetering rotor poor.
Utility model content
The purpose of this utility model be provide in view of the above shortcomings it is a kind of for unmanned helicopter seesaw propeller hub
Stopper mechanism is waved, increases on propeller hub center part and waves bridle, by restraint bolt and rotor axis connection, gives propeller hub the
Two fulcrums, and then increase the operating torque to full machine center of gravity, enhance maneuverability.
The utility model adopts the following technical solutions to achieve:
A kind of stopper mechanism of waving for unmanned helicopter seesaw propeller hub includes rotor shaft, propeller hub center part, waves
Bridle is cut with scissors and waves, flapping hinge is formed by waving bolt and waving washer, and propeller hub center part is by waving bolt and rotor shaft
It is connected, propeller hub center part can be rotated around bolt is waved；Washer is waved waving to be equipped between bolt and rotor shaft, for reducing
Sliding friction；
It waves bridle to be arranged in flapping hinge opposite side, waves bridle by restraint outer ring, restraint inner ring and restraint bolt
Composition, restraint bolt passes through restraint inner ring and restraint outer ring is connected with rotor shaft；
Blade mounting base is installed at propeller hub center part both ends, blade is arranged in blade mounting base, in unmanned plane during flying
When, when causing the lift imbalance of two panels blade by rotor control or opposite incoming flow, it will form a torque to flapping hinge, draw
Propeller hub center part is played to swing around flapping hinge.
The restraint outer ring uses elastic material, when unmanned helicopter, which has manipulation to wave or dry, to be waved, propeller hub center
Part can squeeze restraint outer ring, and the swing of certain amplitude is realized around flapping hinge, to realize the flapping action of rotor, reduce propeller hub
On as aerodynamic force it is uneven and caused by alternation torque load.
The utility model is designed reasonably, structure are simple, due to the presence of waving bridle, the hole meeting of propeller hub center part lower end
Squeeze restraint outer ring；When propeller hub carries out small angle oscillation, hub moment is transmitted to rotation by waving bolt and restraint bolt
On wing axis, to increase the operating torque to full machine center of gravity, maneuverability is enhanced.
Detailed description of the invention
Below with reference to attached drawing, the utility model is described in further detail:
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, rotor shaft, 2, wave bolt, 3, wave washer, 4, propeller hub center part, 5, blade mounting base, 6, restraint
Outer ring, 7, restraint inner ring, 8, restraint bolt, 9, flapping hinge, 10, wave bridle.
Specific embodiment
In conjunction with attached drawing 1, wave stopper mechanism of the utility model for unmanned helicopter seesaw propeller hub includes rotor shaft
1, propeller hub center part 4, flapping hinge 9 and bridle 10 is waved, flapping hinge 9 is formed by waving bolt 2 and waving washer 3, in propeller hub
Heart part 4 is connected by waving bolt 2 with rotor shaft 1, and propeller hub center part 4 can be rotated around bolt 2 is waved；Wave bolt 2 with
It is equipped between rotor shaft 1 and waves washer 3, for reducing sliding friction；
The setting of bridle 10 is waved in 9 opposite side of flapping hinge, waves bridle 10 by restraint outer ring 6, restraint inner ring 7 and limit
Dynamic bolt 8 forms, and restraint bolt 8 passes through restraint inner ring 7 and restraint outer ring 6 is connected with rotor shaft 1；
Blade mounting base 5 is installed at 4 both ends of propeller hub center part, blade is arranged in blade mounting base 5, flies in unmanned plane
When row, when causing the lift imbalance of two panels blade by rotor control or opposite incoming flow, a power to flapping hinge 9 will form
Square causes propeller hub center part 4 to swing around flapping hinge 9.Exist due to waving bridle 10, the hole meeting of 4 lower end of propeller hub center part
Squeeze restraint outer ring 6.When propeller hub carries out small angle oscillation, hub moment is transmitted to by waving bolt 2 and restraint bolt 8
In rotor shaft 1, to increase the operating torque to full machine center of gravity, maneuverability is enhanced.
Claims (3)
1. a kind of wave stopper mechanism for unmanned helicopter seesaw propeller hub, it is characterised in that: including in rotor shaft, propeller hub
Heart part, flapping hinge and bridle is waved, flapping hinge is formed by waving bolt and waving washer, and propeller hub center part is by waving bolt
It is connected with rotor shaft, propeller hub center part can be rotated around bolt is waved；Washer is waved waving to be equipped between bolt and rotor shaft,
For reducing sliding friction；
It waves bridle to be arranged in flapping hinge opposite side, waves bridle and be made of restraint outer ring, restraint inner ring and restraint bolt,
Restraint bolt passes through restraint inner ring and restraint outer ring is connected with rotor shaft.
2. according to claim 1 wave stopper mechanism for unmanned helicopter seesaw propeller hub, it is characterised in that:
Propeller hub center part both ends are equipped with blade mounting base, and blade is arranged in blade mounting base, in unmanned plane during flying, is grasped by rotor
When vertical or opposite incoming flow causes the lift imbalance of two panels blade, a torque to flapping hinge is formed, propeller hub center part is caused
It is swung around flapping hinge.
3. according to claim 1 wave stopper mechanism for unmanned helicopter seesaw propeller hub, it is characterised in that: institute
Restraint outer ring is stated using elastic material, when unmanned helicopter, which has manipulation to wave or dry, to be waved, propeller hub center part squeezes restraint
Outer ring, the swing of certain amplitude is realized around flapping hinge, to realize the flapping action of rotor, on reduction propeller hub not due to aerodynamic force
Balance and caused by alternation torque load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821474852.4U CN209023102U (en) | 2018-09-10 | 2018-09-10 | It is a kind of to wave stopper mechanism for unmanned helicopter seesaw propeller hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821474852.4U CN209023102U (en) | 2018-09-10 | 2018-09-10 | It is a kind of to wave stopper mechanism for unmanned helicopter seesaw propeller hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209023102U true CN209023102U (en) | 2019-06-25 |
Family
ID=66904375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821474852.4U Expired - Fee Related CN209023102U (en) | 2018-09-10 | 2018-09-10 | It is a kind of to wave stopper mechanism for unmanned helicopter seesaw propeller hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209023102U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112550669A (en) * | 2020-12-11 | 2021-03-26 | 中国直升机设计研究所 | Seesaw formula does not have bearing tail propeller hub and helicopter tail-rotor |
| CN113942639A (en) * | 2021-10-09 | 2022-01-18 | 中国直升机设计研究所 | Helicopter blade droop limiter, upper swing limiter and swing limiting system |
-
2018
- 2018-09-10 CN CN201821474852.4U patent/CN209023102U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112550669A (en) * | 2020-12-11 | 2021-03-26 | 中国直升机设计研究所 | Seesaw formula does not have bearing tail propeller hub and helicopter tail-rotor |
| CN113942639A (en) * | 2021-10-09 | 2022-01-18 | 中国直升机设计研究所 | Helicopter blade droop limiter, upper swing limiter and swing limiting system |
| CN113942639B (en) * | 2021-10-09 | 2023-05-05 | 中国直升机设计研究所 | Centrifugal blade swing limiting system of helicopter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190625 |