CN109292084A - A kind of flapping wings type synthesizing jet-flow excitor - Google Patents
A kind of flapping wings type synthesizing jet-flow excitor Download PDFInfo
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- CN109292084A CN109292084A CN201811167495.1A CN201811167495A CN109292084A CN 109292084 A CN109292084 A CN 109292084A CN 201811167495 A CN201811167495 A CN 201811167495A CN 109292084 A CN109292084 A CN 109292084A
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- aerofoil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C33/00—Ornithopters
- B64C33/02—Wings; Actuating mechanisms therefor
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Abstract
The invention belongs to field of fluid machinery, specifically a kind of flapping wings type synthesizing jet-flow excitor, two pairs of aerofoils are mounted on that flexible rotating is intra-articular, and flexible rotating joint is connected on wing root；Motor pushes wing root to move back and forth above and below by transmission mechanism drive link A, so that it is equal in magnitude to generate upper and lower aerofoil, contrary flutters.Under inertia, elastic properties of materials, fluid viscosity collective effect, aerofoil generates rotation around itself leading edge；Jet stream is generated in aerofoil trailing edge by clapping to close, in aerofoil rotary motion reversion, fluid is sucked from aerofoil leading edge, to realize synthesizing jet-flow.The present invention realizes aerofoil two degree-of-freedom motion using passive flexible rotating joint, thrust is not only generated by way of synthesizing jet-flow, lift can also be generated by the dynamic whirlpool that aerofoil two degree-of-freedom motion generates, it is a kind of synthesizing jet-flow excitor with new structure, and two-dimentional driving force can be generated, provide the flexibility of fluid control.
Description
Technical field
The invention belongs to field of fluid machinery, specifically a kind of flapping wings type synthesizing jet-flow excitor.
Background technique
Synthesizing jet-flow technology is a kind of completely new flow control technique, it passes through the fusion of control eddy structure, Ke Yiyou
Effect ground promotes thrust and propulsive efficiency.Synthesizing jet-flow technology does not need fluid supply and pipe-line transportation system, therefore structure is very
Simply.Traditional synthesizing jet-flow excitor is mainly made of driver cavity and vibration component two parts, is swashed in electro magnetic/machinery
Encourage down, vibrating diaphragm vibrates, fetching compression chamber air formed jet flow, suction from hole the fluid replacement around.
Its specific structure type mainly has piezoelectric film oscillatory type, as disclosed on June 2nd, 2018, Publication No.
" a kind of to utilize piezoelectric vibration film and three electrode plasma combined type synthesizing jet-flow excitors " of CN108194461A, in
Disclosed on August 16th, 2006, " synthetic jetting excitor with single-membrane, double openings and double cavities " of Publication No. CN1818399A；Piston vibration
Formula, as disclosed on July 22nd, 2015, Publication No. CN104791218A " a kind of piston type with additional-air inlet slot closes
At jet-flow excitor ".These traditional synthesizing jet-flow excitors are used to change local flow field, to influence aerodynamic force and power
Square.But these traditional synthesizing jet-flow excitors can only generate one-dimensional aerodynamic force since the aperture position of its cavity is fixed.
Further, since its cavity is relatively closed, when realizing high-speed jet, lead to the cavity of breathing process and the pressure ratio very little of environment,
Air-breathing is caused to become difficult.
Flapping wing aircraft is to imitate birds, insect flight mode, gas eddy is generated in a manner of aerofoil of fluttering, and make with this
For the source of aerodynamic force.The aerodynamic force that flapping wing aircraft generates is unsteady aerodynamic force, and the generting machanism of aerodynamic force is " dynamic
Whirlpool delay stall ", " rotation circulation ", " tail capture " etc..Flapping wing aircraft has the single layer wing according to the layout type of aerofoil
(single wing), the double-deck wing (biplane wings), the series connection wing (tandem wings).Studying at present more is single layer
The flapping wing aircraft of the wing, the double-deck wing.For single layer flapping wing aircraft during wing is fluttered, gas eddy successively undergoes wing root whirlpool, leading edge
The forms such as whirlpool, wingtip vortex are finally fallen off in the form of tail in wing trailing edge.After this, the fortune of change wing can be passed through
Dynamic form, recapture tail further increase lift；As disclosed on May 8th, 2018, Publication No.
In " a kind of multi-layer mini-type bionic flapping-wing flying vehicle " of CN108001680A, using the pneumatic mechanism of clap-and-fling, it is
Single layer flapping wing devises a kind of driving mechanism, and in a manner of generating wing rotation, the tail that will fall off from trailing edge is involved in again to reach
To the effect for improving lift.But a feature of single layer flapping wing is, the form in its whirlpool is with tail (rather than jet stream) always
Form fall off, " synthesizing jet-flow " aerodynamic effect can not be formed.For the double-deck flapping wing aircraft, Dutch Delft university is devised
A series of various sizes of model machines, wherein with the engineering completeness highest of DelflyII (de Croon,Remes,
Ruijsink,&De Wagter,2016).These model machines have two pairs of wings, are laid out in " X " type, and upper and lower wing is reversely fluttered,
It is clapped by the plastic deformation of wing in wing and generates jet stream to wing trailing edge at conjunction；When wing is fluttered and inverted, by wing
Plastic deformation sucks air from wing leading edge.This aerofoil profile layout, the wing flexibility, motion mode of the double-deck flapping wing aircraft, just
The basic fundamental element of " synthesizing jet-flow " is constituted well.But each wing of the double-deck flapping wing aircraft of Delfly series only one
Freedom of motion (is fluttered), can only simulate a small amount of wing rotary motion by the flexibility of wing at present；This leads to the stream of jet stream
Measure it is smaller, to limit further increasing for thrust.
Summary of the invention
For the above problem existing for traditional synthesizing jet-flow excitor (piezoelectric film oscillatory type, piston vibration formula), this hair
Bright is designed to provide a kind of flapping wings type synthesizing jet-flow excitor that can generate two-dimentional power.
The purpose of the present invention is achieved through the following technical solutions:
The present invention includes motor, bracket, transmission mechanism, connecting rod A, flexible rotating joint, wing root, aerofoil and fuselage connecting rod,
Wherein motor and fuselage connecting rod are separately mounted on bracket, are equipped with wing root in " X " shape on the fuselage connecting rod, and two of " X "
Side can relatively rotate, and be symmetrically arranged with connecting rod A at left and right sides of wing root, and the output end of the motor is by transmission mechanism respectively with two
One end of the connecting rod A of side is connected, and the other end of the connecting rod A of two sides is connect with two sides of X-shaped respectively；The X-shaped every
The both ends on side are equipped with flexible rotating joint, are mounted on to have on each flexible rotating joint and flutter and rotate two freedom degrees
Aerofoil, the motor drives that the connecting rod A of two sides is synchronous, rotates backward by transmission mechanism, and then drives every side two up and down
Aerofoil is reversely fluttered, and each aerofoil is during fluttering around itself leading edge passive rotation；
Wherein: the flexible rotating joint includes intrinsic articulation and extrinsic articulation, which is axially arranged with extrinsic articulation edge
Opening, the aerofoil are inserted by the opening on intrinsic articulation and are connected with intrinsic articulation, and the extrinsic articulation is mounted on wing root, described
Intrinsic articulation is put by the opening on extrinsic articulation, and aerofoil can be rotated around the leading edge of its own relative to extrinsic articulation；
The mounting hole of accommodating intrinsic articulation is set in the extrinsic articulation, the outer diameter of the intrinsic articulation is greater than the diameter of the mounting hole,
I.e. intrinsic articulation and extrinsic articulation are interference fitted；
The aerofoil be equipped with laminated structure, a part of the laminated structure be inserted into the opening of the intrinsic articulation and with
Intrinsic articulation connection, another part of the laminated structure are extended radially outward to the aperture position of extrinsic articulation；
The transmission mechanism is gear set, which includes gear A, gear B, gear C, gear D and gear E, gear A
It is connected with the output shaft of the motor, the gear B and gear C are coaxially disposed, and gear shaft rotational installation is somebody's turn to do on the bracket
Gear B is meshed with gear A；The gear D and gear E are located at the left and right sides below gear C, and gear shaft turns respectively
Move rack-mount, which is meshed with gear C and gear E respectively；One end of the connecting rod A of two sides is separately connected
In on gear D and gear E；
The gear D, the connecting rod A for the side being connected on gear D, the wing root composition of side connecting rod A other end connection are bent
Handle rocker device, the wing root group that the gear E, the connecting rod A for the other side being connected on gear E, the side connecting rod A other end connect
At crank and rocker mechanism；
The gear A, gear B, gear C, gear D and gear E are located at the ipsilateral of bracket, the gear B, gear D and gear E
On offer arcuate socket；
The wing root is two, and each wing root is V-shaped, and the intersection on the " V " shape both sides and the fuselage connecting rod turn
Dynamic connection, one of wing root " V " shape are located on one side between the both sides of another wing root " V " shape, i.e., two wing roots are in " X "
Shape；
The aerofoil include flexible membrane and above and below the flexible membrane two sides support construction, the support construction of two sides
Flexible membrane is clipped in the middle；The support construction includes connecting rod C, connecting rod D and connecting rod E, and connecting rod C is the leading edge of aerofoil, institute
It states connecting rod D and connecting rod E is connected with connecting rod C respectively, the sheet knot connecting with the flexible rotating joint is connected on connecting rod C
Structure；
The tail portion of the fuselage connecting rod is equipped with curved for adjusting the L shape of flapping wings type synthesizing jet-flow excitor setting angle
It is bent.
Advantages of the present invention and good effect are as follows:
1. the present invention generates synthesizing jet-flow by the two degree-of-freedom motion of aerofoil (rather than cavity): by upper and lower aerofoil around
The longitudinal axis is fluttered, and is clapped and is closed in horizontal plane position, generates jet flow from airfoil trailing edge；By left and right aerofoil fluttering around the longitudinal axis, hanging down
It faces position directly and claps conjunction, form jet flow from aerofoil trailing edge.After aerofoil is clapped and closed, using aerofoil rotary motion, (rotary shaft is aerofoil
Leading edge) aerofoil leading edge from ambient enviroment suck fluid, individually carry out " air-breathing ", " injection " from two positions, solve height
The problem of inspiratory dyspnea when working frequency；In addition, the present invention can form jet stream twice in one cycle, propulsion effect is improved
Rate.
2. the present invention compared to conventional synthesis jet-flow excitor, more fully utilize pneumatic mechanism: in addition to can as pass
The synthesizing jet-flow excitor of system equally generates jet stream, can also utilize " delay stall ", " rotation circulation " of flapping wing aircraft etc.
Unsteady aerodynamic force mechanism, effect are: can provide the power of thrust, lift both direction simultaneously；Thrust producing method: pass through
Fluid is sprayed toward airfoil trailing edge, generates the thrust along the longitudinal axis.Lift producing method (there are two types of mechanism): (1) it by aerofoil is fluttered
The dynamic whirlpool of generation generates lift；(2) it by aerofoil rotation " sucking fluid ", in the low-pressure area that aerofoil upper surface generates, generates
Lift.Thrust and lift are generated simultaneously within an aerofoil period of motion, more flexible control can be carried out to load.
3. flexible aerofoil of the invention can effectively inhibit falling off for whirlpool compared to rigid aerofoil, improves lift and move
State stability.
4. flexible rotating joint of the invention can be with: (1) changing aerofoil damping due to rotation by changing filler, to change
The kinetic characteristics of aerofoil rotation, and then according to different operating condition, improve dynamic vortex stability around aerofoil, improve liter
Power；(2) vibration generated when aerofoil movement is reduced；(3) mechanical energy is stored, efficiency is improved.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention；
Fig. 2 is structural front view of the invention；
Fig. 3 is structure rearview of the invention；
Fig. 4 is structure top view of the invention；
Fig. 5 A is the structure left view of the invention；
Fig. 5 B is enlarged drawing at the A in Fig. 5 A；
Fig. 6 is the schematic perspective view of bracket in Fig. 1；
Fig. 7 is the schematic perspective view of Fig. 1 middle gear group；
Fig. 8 is the structural front view of Fig. 1 middle gear group；
Fig. 9 is the right view of Fig. 8；
Figure 10 is one of the schematic perspective view in flexible rotating joint in Fig. 1；
Figure 11 is the schematic perspective view of intrinsic articulation in Figure 10；
Figure 12 is the schematic perspective view of extrinsic articulation in Figure 10；
Figure 13 is two of the schematic perspective view in flexible rotating joint in Fig. 1；
Figure 14 is A-A cross-sectional view in Figure 13；
Figure 15 is the schematic perspective view of wing root in Fig. 1；
Figure 16 is the structure top view of aerofoil in Fig. 1；
Figure 17 is the manufacture craft schematic diagram of aerofoil of the present invention；
Wherein: 1 is motor, and 2 be bracket, and 201 be hole A, and 202 be hole B, and 203 be hole C, and 204 be hole D, and 205 be hole E, and 3 are
Gear set, 301 be gear A, and 302 be gear B, and 303 be gear C, and 304 be gear D, and 305 be gear E, and 306 be arcuate socket, and 4 are
Sleeve, 5 be connecting rod A, and 6 be flexible rotating joint, and 601 be intrinsic articulation A, and 602 be intrinsic articulation B, and 603 be extrinsic articulation, and 7 be wing root A,
8 be connecting rod B, and 9 be aerofoil, and 901 be laminated structure, and 902 be connecting rod C, and 903 be connecting rod D, and 904 be connecting rod E, and 905 be flexible membrane,
10 be fuselage connecting rod, and 11 be wing root B, and 12 be aerofoil B, and 13 be aerofoil C, and 14 be aerofoil D.
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
As shown in Fig. 1~4 and Fig. 5 A, Fig. 5 B, the present invention includes motor 1, bracket 2, transmission mechanism, connecting rod A5, flexible rotation
Turn joint 6, wing root, aerofoil and fuselage connecting rod 10, wherein the head of motor 1 and fuselage connecting rod 10 is separately mounted on bracket 2, machine
The tail portion of body connecting rod 10 is bent equipped with a L shape, for adjusting the setting angle of flapping wings type synthesizing jet-flow excitor.Such as Fig. 6 institute
Showing, offer hole A201, hole B202, hole C203, hole D204 and hole E205 on bracket 2 respectively, motor 1 is located at behind bracket 2,
It is mounted on the B202 of hole, the head of fuselage connecting rod 10 is mounted on the A201 of hole.
Wing root in " X " shape is installed, two sides of " X " can relatively rotate, the left and right sides of wing root on fuselage connecting rod 10
It is symmetrically arranged with connecting rod A5, the output end of motor 1 is connected with one end of the connecting rod A5 of two sides respectively by transmission mechanism, the company of two sides
The other end of bar A5 is connect with two sides of X-shaped respectively；The both ends of X-shaped each edge are equipped with flexible rotating joint 6, each
Being mounted on flexible rotating joint 6 has the aerofoil for fluttering and rotating two freedom degrees, and motor 1 passes through transmission mechanism driving two
The connecting rod A5 of side is synchronous, rotates backward, and then two aerofoils in every side or more is driven reversely to flutter, and each aerofoil is during fluttering
Around itself leading edge passive rotation.The present embodiment is bilateral symmetry, and there are two wing roots, respectively wing root A7 and wing root B11 for tool；
There are four aerofoil, respectively aerofoil A9, aerofoil B12, aerofoil C13 and aerofoil D14 for tool.
The transmission mechanism of the present embodiment is gear set 3, before bracket 2；As shown in figs. 7-9, gear set 3 includes
Gear A 301, gear B 302, gear C 303, gear D 304 and gear E305, gear A 301 is located at the top, defeated with motor 1
Shaft is connected, and gear B 302 and the coaxial arrangement of gear C 303, the lower section for being respectively positioned on gear A 301, gear shaft are rotatablely installed in bracket
On 2 hole C203, the gear B 302 and 301 external toothing of gear A；Gear D 304 and gear E305 are located at 303 lower section of gear C
The left and right sides, the gear shaft of gear D 304 is rotatably installed on the hole E205 of bracket 2, the gear shaft rotational installation of gear E305
On the hole D204 of bracket 2；Gear D 304 respectively with gear C 303 and gear E305 external toothing.Gear B 302, gear D 304 and
Multiple (the present embodiment is four) arcuate sockets 306 have respectively along the circumferential direction uniformly been opened up on gear E305, can reduce the present invention
Weight bearing, reduce gear set side rapids function, reduce interference to being vortexed around aerofoil.
One end of right side connecting rod A5 is connected on gear D 304 by sleeve 4 and connecting rod B8, and one end of left side connecting rod A5 is logical
It crosses sleeve 4 and connecting rod B8 is connected on gear E305.Connecting hole, the company on one end insertion sleeve 4 of connecting rod B8 are provided on sleeve 4
Hole is connect, the other end is inserted into the connecting hole on gear D304 or gear E305.Sleeve 4 is interference fitted with connecting rod A5.Right side connects
The other end of bar A5 and another sleeve 4 carry out the interference fit of the same manner, and one end of connecting rod B8 is inserted on another sleeve 4
Connecting hole, connecting rod B8 the other end insertion wing root A7 on connecting hole.The other end of left side connecting rod A5 also with another sleeve 4
The interference fit of the same manner is carried out, the connecting hole on another sleeve 4 of the other side is inserted into one end of connecting rod B8, connecting rod B8's
The other end is inserted into the connecting hole on wing root B11.Flexible rotating joint 6 is connected in the lower section of 7 a line of " V " shape wing root by glue
With the upper end of another a line.Gear D 304, the connecting rod A5 on the right side being connected on gear D 304, the connection of the right side connecting rod A5 other end
Wing root A7 form crank and rocker mechanism, gear E305, the connecting rod A5 in the left side being connected on gear E305, left side connecting rod A5 are another
The wing root B11 of one end connection forms crank and rocker mechanism.
As shown in Figure 10~14, flexible rotating joint 6 includes intrinsic articulation and extrinsic articulation 603, and the intrinsic articulation of the present embodiment is
Two, respectively intrinsic articulation A601 and intrinsic articulation B602；Intrinsic articulation A601, intrinsic articulation B602 and extrinsic articulation 603 be it is cylindric,
And the V-shaped opening in end face is equipped with along axial direction；Aerofoil by intrinsic articulation A601 and intrinsic articulation B602 opening insertion and with
Intrinsic articulation is connected.Extrinsic articulation 603 is mounted on wing root, set in extrinsic articulation 603 accommodating intrinsic articulation mounting hole, intrinsic articulation A601 and
Intrinsic articulation B602 is put by the opening on extrinsic articulation 603, and the outer diameter of intrinsic articulation A601 and intrinsic articulation B602 are greater than the straight of mounting hole
Diameter, i.e. intrinsic articulation A601 and intrinsic articulation B602 are interference fitted with extrinsic articulation 603.The center edge of extrinsic articulation 603 is axially arranged with out
Hole, the aperture are connected with mounting hole.Aerofoil can be rotated around the leading edge of its own relative to extrinsic articulation 603.Inside and outside pass of the invention
The material of section is respectively the combination of one or more of rubber, flexible resin, polyimides.
As shown in figure 15, wing root A7 and wing root B11 are V-shaped, intersection and the fuselage connecting rod 10 on the " V " shape both sides
Head rotation connection, one of wing root " V " shape are located on one side between the both sides of another wing root " V " shape, i.e. two wing roots
It is in " X " shape.Each " V " shape wing root offers the connecting hole connecting with connecting rod B8 on one side.
As shown in Figure 16, Figure 17, each aerofoil is sandwich structure, including flexible membrane 905 and is located at the flexible membrane 905
The support construction of upper and lower two sides, during flexible membrane 905 is clipped in from the two sides up and down of flexible membrane 905 by the support construction of two sides respectively
Between, then fixed with glue.Support construction includes connecting rod C902, connecting rod D903 and connecting rod E904, and connecting rod C902 is aerofoil
Leading edge, connecting rod D903 and connecting rod E904 are connected with connecting rod C902 respectively, are connected on connecting rod C902 and flexible rotating joint 6
The laminated structure 901 of connection.Aerofoil A9 is connected with the flexible rotating joint 6 on wing root A7 with aerofoil C13, aerofoil B12 and the wing
Flexible rotating joint 6 on the equal wing root B11 of face D14 is connected, and aerofoil A9 and aerofoil B12 are in left side, aerofoil C13 and aerofoil together
D14 is in right side together；It is symmetrical arranged between aerofoil B12 and aerofoil C13 with the longitudinal center line of fuselage connecting rod 10, aerofoil A9 and the wing
It is symmetrical arranged between the D14 of face with the longitudinal center line of fuselage connecting rod 10.The intrinsic articulation A601 and intrinsic articulation in flexible rotating joint 6
B602 is fixed in the laminated structure 901 in the aerofoil upper left corner by glue, then by the external joint 603 in flexible rotating joint 6
Opening expand, aerofoil is put into.Since the outer diameter of intrinsic articulation A601, intrinsic articulation B602 are bigger than the aperture of extrinsic articulation 603,
It can play the role of axial limiting.A part insertion intrinsic articulation A601 and intrinsic articulation B602 of laminated structure 901 on aerofoil
Opening in, and clamped by intrinsic articulation A601 and intrinsic articulation B602, another part of laminated structure 901 extend radially outward to
The aperture position of extrinsic articulation 603.The leading edge (i.e. connecting rod C902) of aerofoil is used as rotation axis, is placed on 603 both sides end face of extrinsic articulation
Tapping.Therefore, aerofoil can make passive rotation around the leading edge of itself, the range of rotation by flexible rotating joint 6 aperture
Radian determine；In the present embodiment, aperture radian successively takes 16 °, 14 °, 12 °, 10 °.The radian of opening is bigger, wing rotation
Amplitude it is bigger, the jet flow of generation is also bigger.But jet intensity is also related with the rotation speed of aerofoil.In the present invention,
Aerofoil is determined around the speed that the center line of the both ends of the surface in flexible rotating joint 6 rotates by following three factors: the bullet in inside and outside joint
The speed that property (Young's modulus), the viscosity of fluid, wing are fluttered.For the present invention, can by selecting different elastic materials,
The elasticity of extrinsic articulation in changing, to change the intensity of jet stream.
The operation principle of the present invention is that:
1. motor 1 rotates, driving gear A301 rotation, and finally drives gear D304 and gear E305 rotation；Gear
D304 and gear E305 drives the crank and rocker mechanism of every side to move respectively, makes two wings (i.e. aerofoil A9 in left side of every side
Flap with the aerofoil C13 and aerofoil D14) on aerofoil B12 and right side around the longitudinal center line of fuselage connecting rod 10；Each aerofoil is in inertia
Under effect, the leading edge (i.e. connecting rod C902) around itself rotates movement.Intrinsic articulation A601, interior pass in flexible rotating joint 6
Under the opening limit for saving B602, elastic collision occurs for laminated structure 901 and intrinsic articulation, and it is anti-that the rotary motion of aerofoil occurs
Turn.The process is referred to as " rotary motion of aerofoil ".
2. upper and lower two pairs of aerofoils: upper and lower two aerofoils of the every side of present invention velocity magnitude of fluttering is identical, contrary；Rotation
Rotary speed size is identical, contrary.
Left and right two pairs of aerofoils: velocity magnitude of fluttering is identical, contrary；Rotation speed size is identical, contrary.
Within a period of motion, each wing, which has to clap twice, to be closed: upper and lower two pairs of wings are clapped in horizontal position and close (the i.e. wing
Face A9 and aerofoil B12, aerofoil C13 and aerofoil D14)；Left and right two pairs of wings clap and close in vertical plane (i.e. aerofoil A9 and aerofoil D14,
Aerofoil B12 and aerofoil C13).Wing clap every time conjunction after, speed of fluttering, rotation speed direction invert.
3., due to the extruding of wing, forming jet stream in airfoil trailing edge when wing, which is clapped, to be closed.When speed of fluttering, rotation speed
Direction reversion when, due to effect of inertia, aerofoil leading edge is first opened；Then along the longitudinal center line of fuselage connecting rod 10, aerofoil
Gradually it opens；Last aerofoil trailing edge opens.In this process, the fluid in ambient enviroment is inhaled into both wings from aerofoil leading edge
Between face.Here it is fluid suckings.Whole process forms synthesizing jet-flow.
4. the formation of two-dimentional power.Aerofoil movement during the entire process of, dynamic whirlpool is formed from wing root, along aerofoil open up to
It is moved towards wing tip；Simultaneously because aerofoil rotates, dynamic whirlpool is moved towards aerofoil trailing edge simultaneously.Aerofoil pressure is caused to become in dynamic whirlpool
Change, and then forms lift.When aerofoil is clapped and closed, dynamic whirlpool moves to trailing edge；Under the bat conjunction of aerofoil, squeezing action, from
Trailing edge forms jet stream, leads to the generation of thrust.
Claims (10)
1. a kind of flapping wings type synthesizing jet-flow excitor, it is characterised in that: including motor (1), bracket (2), transmission mechanism, connecting rod A
(5), flexible rotating joint (6), wing root, aerofoil and fuselage connecting rod (10), wherein motor (1) and fuselage connecting rod (10) are installed respectively
On bracket (2), wing root in " X " shape is installed on the fuselage connecting rod (10), two sides of " X " can relatively rotate, wing root
The left and right sides is symmetrically arranged with connecting rod A (5), and the output end of the motor (1) passes through the transmission mechanism connecting rod A (5) with two sides respectively
One end be connected, the other end of the connecting rod A (5) of two sides is connect with two sides of X-shaped respectively；The two of the X-shaped each edge
End is equipped with flexible rotating joint (6), is mounted on to have on each flexible rotating joint (6) and is fluttered and rotate two freedom degrees
Aerofoil, the motor (1) drives that the connecting rod A (5) of two sides is synchronous, rotates backward by transmission mechanism, and then drives on every side
Lower two aerofoils are reversely fluttered, and each aerofoil is during fluttering around itself leading edge passive rotation.
2. flapping wings type synthesizing jet-flow excitor according to claim 1, it is characterised in that: the flexible rotating joint (6)
Including intrinsic articulation and extrinsic articulation (603), the intrinsic articulation and extrinsic articulation (603) are along opening is axially arranged with, and the aerofoil is by interior pass
Opening on section is inserted into and is connected with intrinsic articulation, and the extrinsic articulation (603) is mounted on wing root, and the intrinsic articulation is by extrinsic articulation
(603) opening on is put into, and aerofoil can be rotated around the leading edge of its own relative to extrinsic articulation (603).
3. flapping wings type synthesizing jet-flow excitor according to claim 2, it is characterised in that: set in the extrinsic articulation (603)
The mounting hole of intrinsic articulation is accommodated, the outer diameter of the intrinsic articulation is greater than the diameter of the mounting hole, i.e. intrinsic articulation and extrinsic articulation (603) mistake
It is full of cooperation.
4. flapping wings type synthesizing jet-flow excitor according to claim 2, it is characterised in that: the aerofoil is equipped with sheet knot
Structure (901), a part of the laminated structure (901) are inserted into the opening of the intrinsic articulation and are connect with intrinsic articulation, the sheet
Another part of structure (901) is extended radially outward to the aperture position of extrinsic articulation (603).
5. flapping wings type synthesizing jet-flow excitor according to claim 1, it is characterised in that: the transmission mechanism is gear set
(3), which includes gear A (301), gear B (302), gear C (303), gear D (304) and gear E (305), tooth
Wheel A (301) is connected with the output shaft of the motor (1), and the gear B (302) and gear C (303) are coaxially disposed, and gear shaft turns
Dynamic to be installed on the bracket (2), which is meshed with gear A (301)；The gear D (304) and gear E
(305) it is located at the left and right sides below gear C (303), and gear shaft is rotatably installed in respectively on bracket (2), the gear D
(304) it is meshed respectively with gear C (303) and gear E (305)；One end of the connecting rod A (5) of two sides is connected to tooth
It takes turns on D (304) and gear E (305).
6. flapping wings type synthesizing jet-flow excitor according to claim 5, it is characterised in that: the gear D (304), connection
The wing root that connecting rod A (5), side connecting rod A (5) other end in the side on gear D (304) connect forms crank and rocker mechanism,
The gear E (305), the connecting rod A (5) for the other side being connected on gear E (305), side connecting rod A (5) other end connect
Wing root forms crank and rocker mechanism.
7. flapping wings type synthesizing jet-flow excitor according to claim 5, it is characterised in that: the gear A (301), gear B
(302), gear C (303), gear D (304) and gear E (305) are located at the ipsilateral of bracket (2), the gear B (302), gear D
(304) and on gear E (305) it offers arcuate socket (306).
8. flapping wings type synthesizing jet-flow excitor according to claim 1, it is characterised in that: the wing root is two, each
Wing root is V-shaped, and the intersection on the " V " shape both sides and the fuselage connecting rod (10) are rotatablely connected, one of wing root " V " shape
On one side positioned at another wing root " V " shape both sides between, i.e., two wing roots are in " X " shape.
9. flapping wings type synthesizing jet-flow excitor according to claim 1, it is characterised in that: the aerofoil includes flexible membrane
(905) and it is located at the support constructions of the flexible membrane (905) two sides up and down, the support construction of two sides presss from both sides flexible membrane (905)
In centre；The support construction includes connecting rod C (902), connecting rod D (903) and connecting rod E (904), and connecting rod C (902) is aerofoil
Leading edge, the connecting rod D (903) and connecting rod E (904) be connected with connecting rod C (902) respectively, be connected on connecting rod C (902) with
The laminated structure (901) of flexible rotating joint (6) connection.
10. flapping wings type synthesizing jet-flow excitor according to claim 1, it is characterised in that: the fuselage connecting rod (10)
Tail portion is equipped with the L shape for adjusting flapping wings type synthesizing jet-flow excitor setting angle and is bent.
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