CN206141813U - Collapsible screw and aircraft - Google Patents
Collapsible screw and aircraft Download PDFInfo
- Publication number
- CN206141813U CN206141813U CN201620486607.XU CN201620486607U CN206141813U CN 206141813 U CN206141813 U CN 206141813U CN 201620486607 U CN201620486607 U CN 201620486607U CN 206141813 U CN206141813 U CN 206141813U
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- blade
- actuator
- sub
- paddle
- jth
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Abstract
The utility model relates to a collapsible screw and aircraft, this collapsible screw include the propeller hub, connect paddle and the individual driving piece of being made by shape memory alloy of n on the propeller hub, the paddle includes an articulated m paddle in proper order, the one end and the sub - paddle of j of i driving piece are connected, and the other end is connected with j+1 paddle, and i's value is 1 and arrives n, and j's value is 1 and arrives m, the conversion drive j paddle of driving piece between martensite attitude and ovshinsky figure is for the relative rotation of j+1 paddle. Presetting the martensite attitude of driving piece and ovshinsky figure's shape, reducing when the temperature variation, reach default values, memory this moment is closed and is taken place deformation, and then the driving piece can take place deformation, the expansion of drive paddle, need not increase the power supply, a requires temperature reaches the temperature of the predetermined martensite attitude of driving piece can, and every paddle can all fold and expand, has reduced the occupation space of screw under non - user state.
Description
Technical field
This utility model is related to the propeller field used on aircraft, specifically refers to a kind of foldable propeller, Yi Jian
Aircraft equipped with this folding propeller.
Background technology
Propeller size is bigger, and rotating speed is slower, and efficiency is higher, low to strength of materials requirement, in the low situation of atmospheric density
Under, it is also possible to work.But size is bigger, take up room also bigger, especially when aircraft lands on the ground, particularly
Highlight which to take up room；Especially propulsion propeller, propeller hub are horizontally disposed with, and blade is not sent out and does big.
Chinese patent foldable propeller, application number：201410127018.8, a kind of foldable propeller is disclosed, is had
There are left blade, right blade, upper oar lid, lower oar lid, the installation end of left blade is articulated and connected with upper oar lid, lower oar lid, right blade
Installation end is articulated and connected with upper oar lid, lower oar lid, and upper oar lid, the pars intermedia of lower oar lid are respectively equipped with horizontal connecting rod, horizontal connecting rod
Middle part be provided with motor shaft installing hole.The die manufacturing cost of the present invention is low.This propeller blade is foldable.But after its folding
Size be only under use state 1/2, when paddle size is larger, or take larger space；And its folding
Power has additionally increased a motor on board the aircraft, increased the weight of aircraft, waste of resource from motor.
The content of the invention
Technical problem to be solved in the utility model is to provide one kind need not additionally increase the i.e. achievable spiral shell of power source
The Automatic-expanding of rotation oar and folding, and the little a kind of foldable propeller of volume after folding.
The technical scheme that this utility model solves above-mentioned technical problem is as follows：A kind of foldable propeller, including propeller hub, company
The blade being connected on the propeller hub and the n actuator by made by marmem, wherein n take positive integer；The blade bag
Include m sub- blade being hinged successively, wherein m=n+1；One end of i-th actuator is connected with the sub- blade of jth, i-th actuator
The other end be connected with+1 sub- blade of jth, the value of i is 1 to arrive n, and the value of j is 1 to arrive m；Actuator place ambient temperature
Change the actuator is produced deformation and then is driven the sub- blade of the jth to rotate relative to+1 sub- blade of the jth.
The beneficial effects of the utility model are：The geneva figure of default actuator and the shape of austenite state, when temperature becomes
Changing reduces, and reaches default value, now remembers conjunction and deforms upon, and then actuator can be deformed upon, drives the expansion of blade；No
Need to increase power source, it is only necessary to which temperature reaches the temperature of the default geneva figure of actuator；And each blade can
To fold and launch, taking up room under non-working condition propeller is reduced.
On the basis of above-mentioned technical proposal, this utility model can also do following improvement.
Further, conversion of the actuator between geneva figure and austenite state drives the sub- blade of the jth relative
Rotate in+1 sub- blade of the jth.
Further, also including gear and tooth bar, the gear is engaged with the tooth bar；The tooth bar is slidably connected at described
On the sub- blade of jth, the gear is fixedly connected on the j+1 blades；The other end of i-th actuator and the tooth bar
It is fixedly connected.
Another kind of feasible scheme is to provide using the beneficial effect of above-mentioned further scheme, i.e., is driven by actuator
Tooth bar slides on the sub- blade of jth, the rotation with moving gear, and then drives the rotation of+1 sub- blade of jth, and then realizes blade
Fold and launch.
Further, when foldable propeller is in folded state, the actuator is in austenite state；In foldable spiral shell
When rotation oar is in deployed condition, the actuator is in geneva figure.
Using the beneficial effect of above-mentioned further scheme it is, substantially in high-altitude due to propeller in a state of use
In, the temperature in high-altitude is relatively low, and the low-temperature phase of actuator is martensite, therefore by the deployed condition of propeller and geneva figure's phase
It is correspondingly arranged.
Further, the actuator is shape-memory alloy wire, shape-memory alloy rod or shape memory alloy spring.
Further, the actuator has double-pass memory effect.
Technical problem to be solved in the utility model is to provide one kind need not additionally increase the i.e. achievable spiral shell of power source
The Automatic-expanding of rotation oar and folding, and a kind of little aircraft of volume after folding.
The technical scheme that this utility model solves above-mentioned technical problem is as follows：A kind of aircraft, installs on the aircraft
Just like a kind of foldable propeller described in any of the above-described technical scheme.
The beneficial effects of the utility model are identical with a kind of above-mentioned beneficial effect of foldable propeller, and here is no longer gone to live in the household of one's in-laws on getting married
State.
Further, the aircraft is dirigible.
Description of the drawings
Fig. 1 is the schematic diagram after a kind of the first part-structure folding of foldable propeller of this utility model；
Fig. 2 is the schematic diagram after a kind of the first part-structure expansion of foldable propeller of this utility model；
Fig. 3 is the schematic diagram after a kind of second part-structure folding of foldable propeller of this utility model；
Fig. 4 is the schematic diagram after a kind of second part-structure expansion of foldable propeller of this utility model；
Fig. 5 is the schematic diagram after a kind of the third part-structure folding of foldable propeller of this utility model；
Fig. 6 is the schematic diagram after a kind of the third part-structure expansion of foldable propeller of this utility model.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, actuator, the 2, first sub- blade, the 3, second sub- blade, 4, gear, 5, tooth bar.
Specific embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
Blade in actual use my curved-surface structure, thus can not by folding after sub- blade be completely superposed；But it is exactly
Due to incomplete folding, propeller can also be made to work in a folded configuration.In the structural representation of Fig. 1 to Fig. 6
In do not embody curved surface.
Embodiment one
As shown in Figures 1 to 6, a kind of foldable propeller, including propeller hub, the blade being connected on propeller hub and n are disclosed
Individual actuator 1 by made by marmem, wherein n take positive integer；Blade includes m sub- blade being hinged successively, wherein m
=n+1；One end of i-th actuator 1 is connected with the sub- blade of jth, and the other end of the i-th actuator is connected with+1 sub- blade of jth, i's
Value is 1 to n, and the value of j is 1 to m；Conversion of the actuator 1 between geneva figure and austenite state drives the sub- blade phase of jth
For the relative rotation of+1 sub- blade of jth.The expansion and folding of paddle are driven using the deformation of actuator 1.
In yet another embodiment, also including gear 4 and tooth bar 5, gear 4 is engaged with tooth bar 5；Tooth bar 5 is slidably connected at
On the sub- blade of jth, gear 4 is fixedly connected on j+1 blades；The other end of the i-th actuator is fixedly connected with tooth bar 5.
When foldable propeller is in folded state, actuator 1 is in austenite state；In foldable propeller in exhibition
During open state, actuator 1 is in geneva figure.
In actual applications, actuator 1 is shape-memory alloy wire, actuator silk or shape memory alloy spring.Drive
Part 1 has double-pass memory effect.
Can realize the length of run of blade is manufactured into very big, Ke Yichao using foldable propeller of the present utility model
Cross 30 meters.The material of actuator 1 can select Au-Cd, Ag-Cd, Cu-Zn, Cu-Zn-Al, Cu-Zn-Sn, Cu-Zn-Si, Cu-Sn,
Cu-Zn-Ga, In-Ti, Au-Cu-Zn, NiAl, Fe-Pt, Ti-Ni, Ti-Ni-Pd, Ti-Nb, U-Nb or Fe-Mn-Si alloy.Root
According to actual demand, can be in the surface of the surface of blade and/or actuator dress matel coated coating.
As paddle disclosed in this utility model can make multistage, i.e., comprising many sub- paddles；But adjacent two
The annexation of sub- paddle is identical, is just described in detail in the case of only two blades below.
As illustrated in figs. 1 and 2, one end of the first sub- blade 2 is hinged with one end of the second sub- blade 3, realizes that this is hinged
One end of the first sub- blade 2 can be connected with one end of the second sub- blade 3 by bearing pin.One end of the actuator 1 of I shapes is fixed
On the first sub- blade 2, and the other end of this actuator 1 is fixed on the second sub- blade 3；After preset temperature is reached, I shapes
Actuator 1 produce shape, become L-shaped, and driven the second sub- blade 3 rotate around bearing pin, expansion blade.When needing oar
When leaf is folded, it is only necessary to the temperature of actuator 1 is heated to preset temperature, actuator 1 deforms, you can drive blade
Fold.
As described in fig. 3 and fig. 4, one end of the first sub- blade 2 is hinged with one end of the second sub- blade 3, realizes that this is hinged
One end of the first sub- blade 2 can be connected with one end of the second sub- blade 3 by bearing pin.One end of the actuator 1 of L-shaped is fixed
On the first sub- blade 2, and the other end of this actuator 1 is fixed on the second sub- blade 3；After preset temperature is reached, L-shaped
Actuator 1 produce shape, become I shapes, and driven the second sub- blade 3 rotate around bearing pin, expansion blade.When needing oar
When leaf is folded, it is only necessary to the temperature of actuator 1 is heated to preset temperature, actuator 1 deforms, you can drive blade
Fold.
As described in the fig 5 and 6, one end of the first sub- blade 2 is hinged with one end of the second sub- blade 3, realizes that this is hinged
One end of the first sub- blade 2 can be connected with one end of the second sub- blade 3 by bearing pin.
A chute is provided with the first sub- blade 2, and a tooth bar 5 is set in this chute, tooth bar 5 is slidably connected at cunning
In groove；Gear 4 is set on bearing pin, and is fixedly connected with the second sub- blade 3；Tooth bar 5 is mutually twisted with gear 4.
One end of actuator 1 is fixedly connected with tooth bar 5, and the other end is fixed on the first sub- blade 2.
After preset temperature is reached, actuator 1 produces shape, and band carry-over bar 5 slides in chute, and then drive gear 4
Rotation, final to realize driving the second sub- blade 3 rotate around bearing pin, expansion blade.When needing to fold blade, it is only necessary to will
The temperature of actuator 1 is heated to preset temperature, and actuator 1 deforms, you can drive blade to fold.
The shape of actuator 1 is not limited to the shape in above-described embodiment, it is actually used according to circumstances specifically can set
Put.
Connection with two or more blades and launch and folded situation it is identical with such scheme, here is no longer weighed
Multiple explanation.
Embodiment two
A kind of aircraft, a kind of foldable spiral being provided with aircraft as described in arbitrary technical scheme in embodiment one
Oar.
Embodiment three
A kind of dirigible, a kind of foldable propeller being provided with dirigible as described in arbitrary technical scheme in embodiment one.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (8)
1. a kind of foldable propeller, it is characterised in that including propeller hub, the blade being connected on the propeller hub and n by shape
Actuator made by memorial alloy (1), wherein n takes positive integer；
The blade includes m sub- blade being hinged successively, wherein m=n+1；One end of i-th actuator is connected with the sub- blade of jth
Connect, the other end of i-th actuator is connected with+1 sub- blade of jth, the value of i is 1 to n, the value of j is 1 to m；The drive
The change of moving part (1) place ambient temperature makes the actuator (1) produce deformation and then drive the sub- blade of the jth relative to institute
State the rotation of+1 sub- blade of jth.
2. a kind of foldable propeller according to claim 1, it is characterised in that the actuator (1) geneva figure with
Conversion between austenite state drives the sub- blade of the jth relative to the relative rotation of+1 sub- blade of the jth.
3. a kind of foldable propeller according to claim 1, it is characterised in that also including gear (4) and tooth bar (5), institute
State gear (4) to be engaged with the tooth bar (5)；The tooth bar (5) is slidably connected on the sub- blade of the jth, and the gear (4) is solid
Surely it is connected on the j+1 blades；The other end of i-th actuator is fixedly connected with the tooth bar (5).
4. a kind of foldable propeller according to any one of claims 1 to 3, it is characterised in that at foldable propeller
When folded state, the actuator (1) is in austenite state；When foldable propeller is in deployed condition, the driving
Part (1) is in geneva figure.
5. a kind of foldable propeller according to any one of claims 1 to 3, it is characterised in that the actuator (1) is shape
Shape memory alloys silk, shape-memory alloy rod or shape memory alloy spring.
6. a kind of foldable propeller according to any one of claims 1 to 3, it is characterised in that the actuator (1) has
Double-pass memory effect.
7. a kind of aircraft, it is characterised in that install on the aircraft just like the one kind described in any one of claim 1 to 6
Foldable propeller.
8. a kind of aircraft according to claim 7, it is characterised in that the aircraft is dirigible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620486607.XU CN206141813U (en) | 2016-05-25 | 2016-05-25 | Collapsible screw and aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620486607.XU CN206141813U (en) | 2016-05-25 | 2016-05-25 | Collapsible screw and aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206141813U true CN206141813U (en) | 2017-05-03 |
Family
ID=58616093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620486607.XU Withdrawn - After Issue CN206141813U (en) | 2016-05-25 | 2016-05-25 | Collapsible screw and aircraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206141813U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105947182A (en) * | 2016-05-25 | 2016-09-21 | 李帜 | Foldable propeller and aircraft |
| CN108928475A (en) * | 2018-06-28 | 2018-12-04 | 中国直升机设计研究所 | One bulb flexible rotor blade freedom degree locking mechanism |
| CN111498114A (en) * | 2020-04-23 | 2020-08-07 | 杭州流富科技有限公司 | Avoid wing to be blocked in unable medicine unmanned aerial vehicle device that spouts that gets rid of poverty in branch department |
-
2016
- 2016-05-25 CN CN201620486607.XU patent/CN206141813U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105947182A (en) * | 2016-05-25 | 2016-09-21 | 李帜 | Foldable propeller and aircraft |
| CN105947182B (en) * | 2016-05-25 | 2019-02-19 | 李帜 | A kind of foldable propeller and aircraft |
| CN108928475A (en) * | 2018-06-28 | 2018-12-04 | 中国直升机设计研究所 | One bulb flexible rotor blade freedom degree locking mechanism |
| CN108928475B (en) * | 2018-06-28 | 2022-03-08 | 中国直升机设计研究所 | Degree of freedom locking mechanism for spherical flexible rotor blade |
| CN111498114A (en) * | 2020-04-23 | 2020-08-07 | 杭州流富科技有限公司 | Avoid wing to be blocked in unable medicine unmanned aerial vehicle device that spouts that gets rid of poverty in branch department |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170503 Effective date of abandoning: 20190219 |
|
| AV01 | Patent right actively abandoned |