CN108657418A - A kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked - Google Patents
A kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked Download PDFInfo
- Publication number
- CN108657418A CN108657418A CN201810573809.1A CN201810573809A CN108657418A CN 108657418 A CN108657418 A CN 108657418A CN 201810573809 A CN201810573809 A CN 201810573809A CN 108657418 A CN108657418 A CN 108657418A
- Authority
- CN
- China
- Prior art keywords
- blade
- paddle
- locked
- rotor aerocraft
- folding
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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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/16—Blades
- B64C11/20—Constructional features
- B64C11/28—Collapsible or foldable blades
Abstract
The invention discloses a kind of multi-rotor aerocraft folding paddle unfolding mechanisms that flexible can be locked, and when blade is in folded state, blade tips side is locked blade in folded state by the pre-compression force of mechanism；When external motor drives paddle folder rotation, blade generates the trend of expansion under the action of inertia, after inertia force is enough that the pre-compression force of mechanism and the guide post on paddle folder pedestal is overcome to turn over 90 °, blade tips front locks under the reply force effect of mechanism and by flexibility in unfolded state；When folding blade after multi-rotor aerocraft landing, blade reversely rotates pre-compression force that 90 ° overcome mechanism to folded state.The present invention can maximally reduce the isostructural abrasion of blade and play a protective role to a certain extent to blade.
Description
Technical field
The invention belongs to multi-rotor aerocraft field more particularly to a kind of multi-rotor aerocraft folding paddles that flexible can be locked
Unfolding mechanism.
Background technology
Multi-rotor aerocraft is one kind in unmanned plane, is mainly supplied by dynamical system, navigation system, control system, the energy
To compositions such as systems.The dynamical system of small-sized multi-rotor aerocraft usually provides power by motor, in addition include propeller and its
The parts such as fixing fitting are installed.Portability is one of more important characteristic of multi-rotor aerocraft, therefore existing product is frequently with folding
Paddle structure is conducive to the guarantor in transportational process to blade to reduce multi-rotor aerocraft occupied space when unused
Shield.
It is general to fold that paddle is pressed from both sides by upper and lower paddle and gasket, screw etc. are fixed on the rotating part of external rotor electric machine.More rotors
When aircraft takeoff, being thrown away blade by inertia makes it provide power for aircraft, when aircraft steadily hovering in the air,
Two panels folds blade since inertia is usually in 180 °.But aircraft carry out in the air posture adjustment or it is mobile when, difference rotation
Motor on the wing needs continuous acceleration and deceleration with the demand of suitable solution, and angle is not in this case, between the unconfined blade of two panels
Disconnected variation, this means that the upper and lower surface of blade needs for a long time in the state with upper and lower paddle folder (gasket) friction.Therefore, one section
After time, the gasket even blade of abrasion is needed to change to ensure that the dynamical system of multi-rotor aerocraft can work normally, this makes
The usage experience of user is poor and improves maintenance cost.And according in 180 ° be unfolded fixed blades structure, when blade with
It when external object contacts, and cannot play a protective role, there are the possibility of disconnected paddle.
Invention content
In view of this, the present invention provides a kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked, both may be used
The folding of blade is realized for portability, and blade can be unfolded using inertia in the operating condition, while under two states
Blade state carries out flexible locked.
A kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked, when blade is in folded state, blade end
Portion side is locked blade in folded state by the pre-compression force of mechanism；When external motor drives paddle folder rotation, blade exists
The trend that expansion is generated under the action of inertia, when inertia force is enough to overcome the pre-compression force of mechanism and the guide post on paddle folder pedestal
After turning over 90 °, blade tips front locks under the reply force effect of mechanism and by flexibility in unfolded state；When more rotor flyings
When folding blade after device landing, blade reversely rotates pre-compression force that 90 ° overcome mechanism to folded state.
Further, which includes paddle folder pedestal, sliding block, spring, underlying shims, upper layer gasket and paddle folder cover board；
Include propeller shaft, support column and guide groove, the underlying shims, blade, upper layer gasket on the paddle folder pedestal
It is sleeved on successively on the propeller shaft on paddle folder pedestal, spring one end is connected on the support column on paddle folder pedestal, and the other end connects
It is connected on sliding block, the end cooperation of sliding block end face and blade, sliding block is inlaid in the guide groove on paddle folder pedestal, at the spring
In pre-compressed state.
Further, the slider end falls two fillets, round-corner transition between the blade tips side and end face.
Advantageous effect：
1, propeller blade of the invention can fast folding and expansion；When multi-rotor aerocraft rises under blade folded state
When flying, blade can overcome the retentivity that spring is provided by sliding block, and rapid deployment under effect of inertia；When manual expansion spiral
When paddle blade, make blade around axis generate low-angle displacement after, blade can under the action of spring, sliding block Automatic-expanding；It needs to fold
When propeller blade, so that blade is generated reverse rotation around axis, it can be folded.
2, propeller blade of the invention can be flexible locked under folding or unfolded state；It is in and folds in propeller blade
Under state, blade tips side coordinates with sliding block end face, and sliding block provides coupling mechanism force by spring to blade, and blade stabilization is made to roll over
Overlapping state；When propeller blade is in unfolded state, blade tips end face and sliding block end face coordinate, and sliding block is by spring to paddle
Leaf provides coupling mechanism force, and blade is made to stablize in unfolded state；When blade under locking state is by larger outer force effect, blade rotation pushes away
Movable slider overcomes spring force to generate displacement, can play a protective role to blade.
3, structure of the invention is compact, and cost is relatively low；During propeller expansion, only the defeated of smaller rotation angle need to be provided
Enter, blade can under the action of spring and sliding block Automatic-expanding, usage experience it is preferable.
Description of the drawings
Fig. 1 is the structural schematic diagram for the multi-rotor aerocraft folding paddle unfolding mechanism that the present invention flexible can lock；
Fig. 2 is mechanism vertical view under blade unfolded state of the present invention (removes paddle and press from both sides cover board)；
Fig. 3 is blade and sliding block relative position schematic diagram under blade folded state of the present invention.
Wherein, 1- blades, 2- paddles press from both sides pedestal, 2-1- propeller shafts, 2-2- support columns, 2-3- guide grooves, 3- sliding blocks, 4- bullets
Spring, 5- underlying shims, the upper layers 6- gasket, 7- paddles press from both sides cover board.
Specific implementation mode
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in Fig. 1, the present invention provides a kind of multi-rotor aerocraft folding paddle unfolding mechanism packets that flexible can be locked
It includes：Blade 1, paddle folder pedestal 2, sliding block 3, spring 4, underlying shims 5, upper layer gasket 6 and paddle press from both sides cover board 7, wherein on paddle folder pedestal 2
Including propeller shaft 2-1, support column 2-2, guide groove 2-3.Underlying shims 5, blade 1, upper layer gasket 6 are sleeved on paddle folder bottom successively
On propeller shaft 2-1 on seat 2,4 one end of spring is connected on the support column 2-2 on paddle folder pedestal 2, and the other end is connected to sliding block
On 3,3 end face of sliding block and the end of blade 1 coordinate, and sliding block 3 is inlaid in the guide groove 2-3 on paddle folder pedestal 2, and spring 4 is in
Pre-compressed state.
Attached drawing 2 is can vertical view of the flexible locked multi-rotor aerocraft folding paddle unfolding mechanism under blade unfolded state
(remove paddle folder cover board), it to be spiral with 1 end neat fit of blade, blade tips end face that two fillets are fallen in 3 end of sliding block
The mating surface of paddle blade 1 and 3 end of sliding block.
Attached drawing 3 is a kind of multi-rotor aerocraft folding paddle unfolding mechanism blade under blade folded state that flexible can be locked
1 with the relative position schematic diagram of sliding block 3.1 end sides of blade coordinate with 3 end of sliding block, and between 1 end sides of blade and end face
Round-corner transition.
When blade 1 is in folded state, 1 end sides of blade coordinate with 3 end face of sliding block, are provided to sliding block using spring
Power blade 1 is locked in folded state；When motor drives paddle folder rotation, blade 1 generates expansion under the action of inertia
Trend, when inertia force is enough to overcome the elastic force of spring 4 that sliding block 3 is made to generate certain displacement, 1 end fillet position of blade and sliding block
3 end fillet part split-phases are to sliding, and after the guide post on paddle folder pedestal turns over 90 °, 1 end front of blade is matched with 3 end face of sliding block
It closes, and is locked in unfolded state by flexibility；When folding blade 1 after multi-rotor aerocraft landing, blade 1 reversely rotates 90 ° extremely
Folded state.
The either folded state or unfolded state of blade 1, locked by flexibility, when exposed to external forces, blade 1 generates rotation
Gesture is transferred toward, can push sliding block that 4 elastic force of spring is overcome to generate thin tail sheep, blade 1 rotates by a certain angle；After external force is eliminated, blade 1 can
State before being turned again under the action of 4 restoring force of spring.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked, which is characterized in that blade is in folded state
When, blade tips side is locked blade in folded state by the pre-compression force of mechanism；When external motor drives paddle folder rotation
When, blade generates the trend of expansion under the action of inertia, when inertia force is enough to overcome the pre-compression force of mechanism and presss from both sides bottom around paddle
After guide post on seat turns over 90 °, blade tips front locks under the reply force effect of mechanism and by flexibility in unfolded state；When
When folding blade after multi-rotor aerocraft landing, blade reversely rotates pre-compression force that 90 ° overcome mechanism to folded state.
2. the multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked as described in claim 1, which is characterized in that described
Mechanism includes paddle folder pedestal, sliding block, spring, underlying shims, upper layer gasket and paddle folder cover board；
Include propeller shaft, support column and guide groove on the paddle folder pedestal, the underlying shims, blade, upper layer gasket are successively
It is sleeved on the propeller shaft on paddle folder pedestal, spring one end is connected on the support column on paddle folder pedestal, and the other end is connected to
On sliding block, the end of sliding block end face and blade coordinates, and sliding block is inlaid in the guide groove on paddle folder pedestal, and the spring is in pre-
Compressive state.
3. the multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked as claimed in claim 2, which is characterized in that described
Slider end falls two fillets, round-corner transition between the blade tips side and end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810573809.1A CN108657418A (en) | 2018-06-06 | 2018-06-06 | A kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810573809.1A CN108657418A (en) | 2018-06-06 | 2018-06-06 | A kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108657418A true CN108657418A (en) | 2018-10-16 |
Family
ID=63775222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810573809.1A Pending CN108657418A (en) | 2018-06-06 | 2018-06-06 | A kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108657418A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693781A (en) * | 2019-01-28 | 2019-04-30 | 北京云影飞扬科技有限公司 | A kind of folding paddle of with locking mechanism |
| CN111252237A (en) * | 2018-12-03 | 2020-06-09 | 海鹰航空通用装备有限责任公司 | Folding and unfolding device and propeller |
| CN112173098A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Novel control system and method for electric folding and unfolding of rotor wing |
| CN112607004A (en) * | 2020-12-26 | 2021-04-06 | 浙江大学 | Transversely-folded propeller |
| CN116812193A (en) * | 2023-08-31 | 2023-09-29 | 北京卓翼智能科技有限公司 | Stop gear and unmanned aerial vehicle folding oar |
| CN116853559A (en) * | 2023-09-04 | 2023-10-10 | 北京卓翼智能科技有限公司 | Unmanned aerial vehicle screw automatic folding mechanism |
| WO2024062928A1 (en) * | 2022-09-22 | 2024-03-28 | ソニーグループ株式会社 | Unmanned aircraft and propeller |
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| CN105083533A (en) * | 2015-10-08 | 2015-11-25 | 安阳市豪克科技发展有限责任公司 | Folding propeller with limiting structures |
| CN105129083A (en) * | 2015-08-20 | 2015-12-09 | 何春旺 | Rotor, propeller clamp and aircraft |
| CN205293089U (en) * | 2016-01-14 | 2016-06-08 | 四川景飞无人机科技有限公司 | Foldable screw of initiative of many rotors |
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| CN106553751A (en) * | 2017-01-13 | 2017-04-05 | 王伟 | A kind of pitch-changing mechanism of propeller and the aircraft for assembling the device |
| US20170355447A1 (en) * | 2016-06-10 | 2017-12-14 | Gopro, Inc. | Thrust-Dependent Variable Blade Pitch Propeller |
| CN108033005A (en) * | 2017-10-16 | 2018-05-15 | 顺丰科技有限公司 | A kind of paddle folder is with folding paddle |
| CN208630844U (en) * | 2018-06-06 | 2019-03-22 | 中国船舶重工集团公司第七一九研究所 | A kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked |
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2018
- 2018-06-06 CN CN201810573809.1A patent/CN108657418A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090274557A1 (en) * | 2008-05-05 | 2009-11-05 | Khymych Vasyl | Propeller with Flexible Variable Blades |
| CN105129083A (en) * | 2015-08-20 | 2015-12-09 | 何春旺 | Rotor, propeller clamp and aircraft |
| CN105083533A (en) * | 2015-10-08 | 2015-11-25 | 安阳市豪克科技发展有限责任公司 | Folding propeller with limiting structures |
| CN205293089U (en) * | 2016-01-14 | 2016-06-08 | 四川景飞无人机科技有限公司 | Foldable screw of initiative of many rotors |
| US20170355447A1 (en) * | 2016-06-10 | 2017-12-14 | Gopro, Inc. | Thrust-Dependent Variable Blade Pitch Propeller |
| CN106043671A (en) * | 2016-07-09 | 2016-10-26 | 王伟 | Variable pitch propeller and aerial vehicle with same |
| CN106553751A (en) * | 2017-01-13 | 2017-04-05 | 王伟 | A kind of pitch-changing mechanism of propeller and the aircraft for assembling the device |
| CN108033005A (en) * | 2017-10-16 | 2018-05-15 | 顺丰科技有限公司 | A kind of paddle folder is with folding paddle |
| CN208630844U (en) * | 2018-06-06 | 2019-03-22 | 中国船舶重工集团公司第七一九研究所 | A kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252237A (en) * | 2018-12-03 | 2020-06-09 | 海鹰航空通用装备有限责任公司 | Folding and unfolding device and propeller |
| CN109693781A (en) * | 2019-01-28 | 2019-04-30 | 北京云影飞扬科技有限公司 | A kind of folding paddle of with locking mechanism |
| CN112173098A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Novel control system and method for electric folding and unfolding of rotor wing |
| CN112607004A (en) * | 2020-12-26 | 2021-04-06 | 浙江大学 | Transversely-folded propeller |
| WO2024062928A1 (en) * | 2022-09-22 | 2024-03-28 | ソニーグループ株式会社 | Unmanned aircraft and propeller |
| CN116812193A (en) * | 2023-08-31 | 2023-09-29 | 北京卓翼智能科技有限公司 | Stop gear and unmanned aerial vehicle folding oar |
| CN116812193B (en) * | 2023-08-31 | 2023-12-08 | 北京卓翼智能科技有限公司 | Stop gear and unmanned aerial vehicle folding oar |
| CN116853559A (en) * | 2023-09-04 | 2023-10-10 | 北京卓翼智能科技有限公司 | Unmanned aerial vehicle screw automatic folding mechanism |
| CN116853559B (en) * | 2023-09-04 | 2024-02-09 | 北京卓翼智能科技有限公司 | Unmanned aerial vehicle screw automatic folding mechanism |
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