CN206255191U - String wing unmanned plane - Google Patents
String wing unmanned plane Download PDFInfo
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- CN206255191U CN206255191U CN201621346675.2U CN201621346675U CN206255191U CN 206255191 U CN206255191 U CN 206255191U CN 201621346675 U CN201621346675 U CN 201621346675U CN 206255191 U CN206255191 U CN 206255191U
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Abstract
The utility model discloses one kind string wing unmanned plane, it is related to logistics transportation field, is used to optimize the performance of existing string wing unmanned plane.The string wing unmanned plane includes fuselage, front wing, rear wing and propeller component, the position of the position less than rear wing of front wing；Propeller component is located at front wing and/or rear wing, and the propeller component positioned at fuselage longitudinal direction both sides is symmetrical.Above-mentioned technical proposal, realizes the vertical ascending, descending of string wing unmanned plane on the premise of the lift of whole machine is improved, and reduces the requirement to landing site when string wing unmanned plane works, and has expanded usage scenario and the application scenario of string wing unmanned plane.
Description
Technical field
The utility model is related to logistics transportation field, and in particular to one kind string wing unmanned plane.
Background technology
Existing string wing unmanned plane includes fuselage, front wing, rear wing and the preceding slurry located at front fuselage, when taking off,
Preceding slurry provides the power required for flying, but string wing unmanned plane must be by runway ability takeoff and landing.
Inventor has found at least there are following problems in the prior art：In the prior art, tandem airplane only can be used in race
The occasion in road, so that the use occasion of string wing unmanned plane is very limited.
Utility model content
One of purpose of the present utility model is to propose a kind of string wing unmanned plane, is used to optimize existing string wing unmanned plane
Performance, the use occasion of extension string wing unmanned plane.
To achieve the above object, the utility model provides following technical scheme：
The utility model embodiment provides a kind of string wing unmanned plane, including fuselage, front wing, rear wing and propeller component,
Position of the position of the front wing less than the rear wing；The propeller component is located at the front wing and/or the rear wing, is located at
The propeller component of fuselage longitudinal direction both sides is symmetrical.
In optional or preferred embodiment, the quantity of the propeller component is more than two, and each described propeller
Component is equal apart from the distance of the string wing unmanned plane center of gravity.
In optional or preferred embodiment, the quantity of the propeller component is four, before two propellers
The position of component is higher than two positions of the propeller component below.
In optional or preferred embodiment, the quantity of the propeller component is four, two spirals above
Oar component is located at the front of the front wing, and two propeller components below are located between the front wing and the rear wing.
In optional or preferred embodiment, each described propeller component positioned at fuselage longitudinal direction the same side is fixed on
On same cross bar, and the propeller component above is located at the top of the cross bar, and propeller component below is located at institute
State the lower section of cross bar；The cross bar is fixed on the front wing and/or rear wing.
In optional or preferred embodiment, the distance between propeller and the cross bar of each propeller component are all
More than mean aerodynamic chord.
In optional or preferred embodiment, the motor cabinet of each propeller component is all fixed on the cross bar.
In optional or preferred embodiment, each cross bar by different montants simultaneously with the front wing and it is described after
The wing is fixed.
In optional or preferred embodiment, the position height of each propeller component is all between the front wing and described
Between the position height of rear wing.
In optional or preferred embodiment, the horizontal range of the front wing and the rear wing is the preceding chord-length or institute
State rear chord-length 2.1 times to 2.5 times, and/or the vertical range of the front wing and the rear wing is the preceding chord-length or institute
State rear chord-length 0.8 times to 1 times.
In optional or preferred embodiment, the horizontal range of the front wing and the rear wing is the preceding chord-length or institute
State rear chord-length 2.35 times.
In optional or preferred embodiment, the vertical range of the front wing and the rear wing is the preceding chord-length or institute
State rear chord-length 0.895 times.
In optional or preferred embodiment, the upper counterangle of the rear wing is 2 ° to 4 °.
In optional or preferred embodiment, the upper counterangle of the rear wing is 3 °.
Based on above-mentioned technical proposal, the utility model embodiment can at least produce following technique effect：
Above-mentioned technical proposal, the ingenious structure type that make use of string wing unmanned plane, gives string wing unmanned aerial vehicle body both sides difference
Increased propeller component, it is possible to achieve the vertical and landing takeoff of string wing unmanned plane.In addition, the position of front wing is less than rear wing
Position, by rationally setting the relative position relation between front wing, rear wing, can cause the downwash flow of front wing to the negative of rear wing
Influence is small, and the lift of whole machine is significantly improved.It can be seen that above-mentioned technical proposal, the string wing is realized on the premise of the lift of whole machine is improved
The vertical ascending, descending of unmanned plane, reduces the requirement to landing site when string wing unmanned plane works, and has expanded making for string wing unmanned plane
With scene and application scenario.
Brief description of the drawings
Accompanying drawing described herein is used for providing being further understood to of the present utility model, constitutes the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not constitute to of the present utility model improper
Limit.In the accompanying drawings：
The string wing unmanned plane schematic front view that Fig. 1 is provided for the utility model embodiment；
The string wing unmanned plane left view schematic diagram that Fig. 2 is provided for the utility model embodiment；
The string wing unmanned plane schematic top plan view that Fig. 3 is provided for the utility model embodiment.
Reference：1st, fuselage；2nd, front wing；3rd, rear wing；4th, propeller component；5th, preceding drawing oar；6th, cross bar；7th, montant；41、
Propeller；42nd, motor base.
Specific embodiment
The technical scheme that the utility model is provided is illustrated in more detail with reference to Fig. 1~Fig. 3.
Technical term or the explanation of nouns used are needed in the present embodiment.
Chord length：The leading edge of a wing to trailing edge distance, along parallel to fuselage datum orientation measurement.
Leading edge：A bit of aerofoil profile foremost.
Trailing edge：Aerofoil profile is more rearmost.
Wing chord：The line of leading edge and trailing edge.
The angle of attack：The direction of advance (equivalent to the direction of air-flow) of wing and the angle of wing chord (different from fuselage axis) are referred to as
The angle of attack or the angle of attack, it is to determine the benchmark of wing attitude in the gas flow.
Under wash：Trigger when referring to that wing produces lift and flow through the air-flow of wing and move downward, referred to as wash down, under wash while can produce
Raw induced drag.
Angle of downwash：The direction angulation of air-flow after the airflow direction and wing blown over before wing.
Upper (lower) dihedral：Angle of the wing on fuselage, i.e. wing reference plane and horizontal plane angulation；Work as wing
Then refer to the angle of torsional axis and horizontal plane when having torsion.Looked behind along aircraft longitudinal axis from head, both sides wing tip is upward
The angle stuck up.Similarly, angle when letting droop just is inverted diherdral.
Referring to Fig. 1, the utility model embodiment provides a kind of string wing unmanned plane, including fuselage 1, front wing 2, rear wing 3 and spiral shell
Rotation oar component 4.Position of the position of front wing 2 less than rear wing 3；Propeller component 4 is located at front wing 2 and/or rear wing 3, positioned at fuselage 1
The propeller component 4 of longitudinal both sides is symmetrical.
Herein, to go here and there wing unmanned plane head as preceding, after tail is.Front wing 2 is near apart from head, and rear wing 3 is near apart from tail.
Referring to Fig. 1, propeller component 4 includes propeller 41, motor (not shown) and motor base 42, and motor is by motor
Base 42 is supported, and propeller 41 is motor driven so as to provide vertical ascending, descending power for string wing unmanned plane.
After propeller component 4 is set, oar 5 is drawn to retain before string wing unmanned plane is original, it is preceding to draw oar 5 and propeller component
4 maneuverability pattern can follow following manner, and this is described as a example by sentencing 4 propeller components of setting：
Takeoff phase：4 propellers of VTOL 41 are first started working, there is provided vertical lift makes string wing unmanned plane vertical
Ground is left, after string wing unmanned plane rises to certain altitude (100 meters), 4 reduction rotating speeds of the propeller of VTOL 41 make
String wing unmanned plane keeps hovering.
The revert to level flight stage：After hovering stabilization, preceding drawing oar 5 is started working, and string wing unmanned plane is obtained horizontal forward speed
Degree, in the short period of time (within general 10 seconds), (about 25 meters of specified cruising speed is brought up to by string wing unmanned plane level speed
It is per second), now the rotating speed of 4 propellers 41 is gradually reduced, to be checked to measure after flying speed meets and require, 4 VTOL
Propeller 41 is stopped completely, is transferred to fixed-wing offline mode.
Landing phases：4 propellers 41 are started working, while preceding drawing oar 5 rotating speed reduction, in the presence of air drag,
Horizontal flight speed is gradually reduced, until keeping hovering completely, at this moment preceding drawing oar 5 is stopped, and 4 propellers 41 of adjustment make string
Wing unmanned plane vertically lands on ground.
The parameters such as own wt and carrying capacity according to string wing unmanned plane, the quantity of propeller component 4 can set 2
It is individual, 4,6 or 8, it is even more many, but the propeller component 4 of the longitudinal both sides of fuselage 1 need it is symmetrical, with ensure the string wing without
It is man-machine steadily to take off.
Above-mentioned technical proposal, the ingenious structure type that make use of string wing unmanned plane, gives the both sides difference of string wing unmanned aerial vehicle body 1
Increased propeller component 4, it is possible to achieve the vertical and landing takeoff of string wing unmanned plane.In addition, the position of front wing 2 is less than rear wing
3 position, by rationally setting the relative position relation between front wing 2, rear wing 3, can cause the downwash flow of front wing 2 to rear wing
3 negative effect is small, and the lift of whole machine is significantly improved.It can be seen that above-mentioned technical proposal, realizes on the premise of whole machine lift is improved
The vertical lift of string wing unmanned plane, reduces the requirement to landing site when string wing unmanned plane works, expanded the string wing nobody
The usage scenario and range of application of machine.
Referring to Fig. 1, the quantity of propeller component 4 is more than two, and each propeller component 4 is apart from string wing unmanned plane center of gravity
Distance it is equal.The quantity of propeller component 4 is such as 4,6,8 etc..The quantity of propeller component 4 can be according to the string wing
The carrying capacity of unmanned plane is configured.
Referring to Fig. 1 and Fig. 2, the quantity of propeller component 4 is four in the present embodiment specifically, before two propellers
The position of component 4 is higher than two positions of propeller component 4 below.In the present embodiment, it is respectively provided with the longitudinal both sides of fuselage 1
As a example by two propeller components 4, totally four propeller components 4, four propeller components 4 ensure string wing unmanned planes it is steady take off and
Landing.
Further, in four propeller components 4, two propeller components 4 above are located at the front of front wing 2, behind
Two propeller components 4 be located between front wing 2 and rear wing 3.
Propeller component 4 for it is preceding it is upper after lower distribution form, increase propeller component 4 and wing vertical direction away from
From reducing interacting for the downwash flow of propeller component 4 and wing.In addition, this arrangement ensure that propeller group first
Part 4 is in center of gravity both sides, moreover air-flow has at utmost been avoided out wing in vertical direction, improves operating efficiency.Finally, spiral shell
Rotation oar component 4 using it is preceding it is upper after lower arrangement, the position with front wing 2 forms balance less than the position of rear wing 3, it is ensured that go here and there
The flying quality of wing unmanned plane.
Four propeller components 4 can specifically use following relative position relations：Respectively there are two propellers the longitudinal both sides of fuselage 1
Component 4, and the position height of two propeller components 4 positioned at string wing unmanned plane center of gravity front end is identical, positioned at string wing unmanned plane
The position height of two propeller components 4 of center of gravity rear end is identical.It is this so that string wing unmanned plane center of gravity will not be because being provided with spiral shell
Revolve oar component 4 and excessively change, it is ensured that the flying quality of string wing unmanned plane.
Referring to Fig. 1, two propeller components 4 positioned at the longitudinal the same side of the fuselage 1 are fixed on same cross bar 6,
And propeller component 4 above is located at the top of cross bar 6, propeller component 4 below is positioned at the lower section of cross bar 6；Cross bar 6 is fixed
In front wing 2 and/or rear wing 3.
Referring to Fig. 1, in the present embodiment, so that cross bar 6 is fixed by different montants 7 with front wing 2 and rear wing 3 simultaneously as an example,
Can so cause that the installation of cross bar 6 is more consolidated, to ensure the reliability that propeller component 4 is installed.
Referring to Fig. 1, specifically, a hinge of cross bar 6 has two montants 7, and a montant 7 is connected with front wing 2, Ling Yigen
Montant 7 is connected with rear wing 3, and montant 7 can be to be detachably connected with the connected mode of front wing 2, rear wing 3, such as bolt connection.On
The motor of the propeller component 4 of text is fixed on cross bar 6, and montant 7 plays a part of Auxiliary support.
Cross bar 6 can be an entirety with montant 7, or use non-dismountable connection.Certainly, it is contemplated that follow-up dismounting,
The convenience of maintenance, can also use and be detachably connected.
Referring to Fig. 1, the propeller 41 of each propeller component 4 is more than mean aerodynamic chord with the distance of cross bar 6.Before and after wing
The distance of edge is referred to as chord length, and wing chord length is extended to being change, represents wing with mean aerodynamic chord in terms of air force
One average value of influence.Propeller 41 is more than mean aerodynamic chord with the distance of cross bar 6, and the benefit for so setting is：Distance
It is too small to cause the downwash flow when rotating of propeller 41 to be flushed in aerofoil surface, aircraft total life is decreased, should be away from
Kept within the acceptable range from loss of lift reduction can be made.
Referring to Fig. 1, the motor base 42 of each propeller component 4 is all fixed on cross bar 6.So it is easy to set propeller component
4.So it is easy to set propeller component 4.
Referring to Fig. 1, the position height of each propeller component 4 is all located between the position height of front wing 2 and rear wing 3.It is this
Set-up mode causes that the flying quality of string wing unmanned plane is good.
The relative position relation of front wing 2 and rear wing 3 is described below.
The horizontal range L1 of front wing 2 and rear wing 3 is 2.1 times to 2.5 times of preceding chord-length L0 or rear chord-lengths L0, and/or,
The vertical range L2 of front wing 2 and rear wing 3 is 0.8 times to 1 times of preceding chord-length L0 or rear chord-lengths L0.
Preceding chord-length L0 and rear chord-length L0 are equal, hereinafter for convenience of description, are described only with preceding chord-length L0, but
It is understood that describing also possible using rear chord-length L0.
Horizontal range L1 refers to the spacing of the leading edge of front wing 2 and the leading edge of rear wing 3 in the longitudinal direction of fuselage 1.Vertical range L2 is
Refer to the spacing of the leading edge of front wing 2 and the leading edge of rear wing 3 in vertical direction.
Horizontal range L1 is such as specifically 2.1 times of preceding chord-length L0,2.12 times, 2.16 times, 2.2 times, 2.25 times, 2.3
Again, 2.4 times, 2.45 times, 2.5 times etc..
Vertical range L2 is such as specifically 0.8 times of preceding chord-length L0,0.85 times, 0.87 times, 0.9 times, 0.93 times, 0.95
Again, 0.97 times, 1 times etc..
When the relative position relation between front wing 2, rear wing 3 meets above-mentioned qualifications, the downwash flow of front wing 2 is to rear
The negative effect of the wing 3 is small, and the lift of whole machine is significantly improved.Above-mentioned technical proposal, by ingenious setting front wing 2, rear wing 3 with respect to position
Relation is put, after the angle of attack exactly stall gone here and there residing for wing unmanned plane when the flow-disturbing of front wing 2 can be directly washed on rear wing 3
The angle of attack, belongs to the scope that in-flight need not or will not relate to, it is ensured that the lift of rear wing 3, and avoid the occurrence of electric shock.
Referring to Fig. 1, specifically, the position of the position less than rear wing 3 of front wing 2.Using low early and high after set-up mode, benefit
It is：If low or front and rear contour after height before taking, the air-flow for bypassing front wing has the trend for deflecting down, whole or portion
Rear wing is divided to shroud in the downwash flow of front wing, the lift that rear wing is produced will be greatly lowered, and be unfavorable for airplane ascensional force and liter
Hinder the raising of ratio.
Further, the horizontal range L1 between front wing 2 and rear wing 3 is the 2.35 of preceding chord-length L0 or rear chord-lengths L0
Times.When the distance of current rear wing 3 keeps this relative distance with chord length L0, the negative effect of the downwash flow of front wing 2 to rear wing 3
It is minimum.
Alternatively, the vertical range L2 between front wing 2 and rear wing 3 is 0.895 times of preceding chord-length L0 or rear chord-lengths L0.
The numerical value causes to flow through the flow-disturbing of front wing 2 in -6 °~16 ° of effective angle of attack scope, more than 16 ° of string wing unmanned planes can stall will not be straight
Connect and be washed on rear wing 3.
The upper counterangle α of rear wing 3 is 2 ° to 4 °, is such as specifically 2 °, 2.5 °, 3 °, 3.5 °, 4 °.Upper counterangle α can increase the string wing
The lateral stability of unmanned plane, inverted diherdral can reduce the lateral stability of string wing unmanned plane, but inverted diherdral can improve the string wing
The motor-driven and flexibility of unmanned plane.Using the inverted diherdral of above range, above-mentioned various performances can be preferably balanced, it is specific next
Say, string wing unmanned plane lateral stability can be increased, while allow the relative distance of wing tip to become big, in this condition after front wing 2 pairs
The interference in air flow of the wing 3 is smaller.
Alternatively, the upper counterangle α of rear wing 3 is 3 °.Using above-mentioned numerical value, front wing 2 is to the interference in air flow of rear wing 3 close to most
It is small.
Referring to Fig. 2, specifically, front wing 2 is located at the bottom of string wing unmanned aerial vehicle body 1.The bottom surface of front wing 2 and the bottom surface of fuselage 1
It is almost concordant.This setup can cause that front wing 2, rear wing 3 keep a kind of low early and high after arrangement, be conducive to string
The performance of wing unmanned plane during flying performance.
Referring to Fig. 2, specifically, rear wing 3 is located at the top of string wing unmanned aerial vehicle body 1.The bottom surface of rear wing 3 can be higher than fuselage
1 top surface.This setup can cause that front wing 2, rear wing 3 keep a kind of low early and high after arrangement, and beneficial to guarantee before
Relative position relation between the wing 2, rear wing 3, is conducive to the performance of string wing unmanned plane during flying performance.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are based on accompanying drawing institute
The orientation or position relationship for showing, be only for ease of description the utility model and simplify describe, rather than indicate or infer meaning
Device or element must have specific orientation, be specific azimuth configuration and operation, thus it is not intended that to this practicality newly
Type protects the limitation of content.
Finally it should be noted that：Above example is only used to illustrate the technical solution of the utility model, rather than its limitations；
Although being described in detail to the utility model with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement, but these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The spirit and scope of scheme.
Claims (14)
1. a kind of string wing unmanned plane, it is characterised in that including fuselage (1), front wing (2), rear wing (3) and propeller component (4), institute
State the position of the position less than the rear wing (3) of front wing (2)；The propeller component (4) is located at the front wing (2) and/or institute
Rear wing (3) is stated, the propeller component (4) positioned at the fuselage (1) longitudinal direction both sides is symmetrical.
2. it is according to claim 1 string wing unmanned plane, it is characterised in that the quantity of the propeller component (4) be more than two
It is individual, and each described propeller component (4) is equal apart from the distance of the string wing unmanned plane center of gravity.
3. it is according to claim 1 string wing unmanned plane, it is characterised in that the quantity of the propeller component (4) be four,
Above two positions of the propeller component (4) are higher than two positions of the propeller component (4) below.
4. it is according to claim 1 string wing unmanned plane, it is characterised in that the quantity of the propeller component (4) be four,
Above two propeller components (4) are positioned at the front of the front wing (2), behind two propeller components (4) be located at
Between the front wing (2) and the rear wing (3).
5. it is according to claim 1 string wing unmanned plane, it is characterised in that positioned at the fuselage (1) longitudinal direction the same side it is each
The propeller component (4) is fixed on same cross bar (6), and the propeller component (4) above is positioned at the cross bar
(6) top, the lower section of propeller component (4) below positioned at the cross bar (6)；The cross bar (6) is fixed on the front wing
And/or rear wing (3) (2).
6. it is according to claim 5 string wing unmanned plane, it is characterised in that the propeller of each propeller component (4)
(41) with the distance between the cross bar (6) both greater than mean aerodynamic chord.
7. it is according to claim 5 string wing unmanned plane, it is characterised in that the motor base of each propeller component (4)
(42) all it is fixed on the cross bar (6).
8. it is according to claim 5 string wing unmanned plane, it is characterised in that each cross bar (6) is by different montants (7)
It is simultaneously fixed with the front wing (2) and the rear wing (3).
9. it is according to claim 1 string wing unmanned plane, it is characterised in that the position height of each propeller component (4)
All between the position height of the front wing (2) and the rear wing (3).
10. it is according to claim 1 string wing unmanned plane, it is characterised in that the water of the front wing (2) and the rear wing (3)
Put down apart from 2.1 times to 2.5 times for the preceding chord-length or the rear chord-length, and/or the front wing (2) and the rear wing
(3) vertical range is 0.8 times to 1 times of the preceding chord-length or the rear chord-length.
11. string wing unmanned planes according to claim 10, it is characterised in that the water of the front wing (2) and the rear wing (3)
Flat distance is 2.35 times of the preceding chord-length or the rear chord-length.
12. string wing unmanned planes according to claim 10, it is characterised in that the front wing (2) and the rear wing (3) it is vertical
Straight distance is 0.895 times of the preceding chord-length or the rear chord-length.
13. string wing unmanned planes according to claim 10, it is characterised in that the upper counterangle of the rear wing (3) is 2 ° to 4 °.
14. string wing unmanned planes according to claim 13, it is characterised in that the upper counterangle of the rear wing (3) is 3 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621346675.2U CN206255191U (en) | 2016-12-09 | 2016-12-09 | String wing unmanned plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621346675.2U CN206255191U (en) | 2016-12-09 | 2016-12-09 | String wing unmanned plane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206255191U true CN206255191U (en) | 2017-06-16 |
Family
ID=59028764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621346675.2U Active CN206255191U (en) | 2016-12-09 | 2016-12-09 | String wing unmanned plane |
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| CN (1) | CN206255191U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828911A (en) * | 2016-12-09 | 2017-06-13 | 北京京东尚科信息技术有限公司 | String wing unmanned plane |
| WO2019134712A1 (en) * | 2018-01-08 | 2019-07-11 | Geosat Aerospace & Technology Inc. | Methods and unmanned aerial vehicles for longer duration flights |
-
2016
- 2016-12-09 CN CN201621346675.2U patent/CN206255191U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828911A (en) * | 2016-12-09 | 2017-06-13 | 北京京东尚科信息技术有限公司 | String wing unmanned plane |
| WO2018103458A1 (en) * | 2016-12-09 | 2018-06-14 | 北京京东尚科信息技术有限公司 | Tandem-wing unmanned aerial vehicle |
| WO2019134712A1 (en) * | 2018-01-08 | 2019-07-11 | Geosat Aerospace & Technology Inc. | Methods and unmanned aerial vehicles for longer duration flights |
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