CN101092168A - Flapping wings helicopter with changeable giro wing - Google Patents

Abstract

The invention relates to revolving wing flapping wing helicopter. It utilizes revolving wing driver to control its angle to make the air current effect always upward. The side of the coil cylindrical guiding machine is graved one flute of which the first half cycle flute shape is spread into arc; the second half cycle is set at the same plane with the barrel radius. The flute is set a slide block which is driven by power to slide in the flute, made lateral motion in the first half cycle. The rack connected with the slide block drives gear of the wing axle to rotate to further make the wing board change angle to make the air current support life force. While the slide block is moving to the second half cycle, it has no lateral motion which can make the wing avoid the effect from the air current resistance.

Description

Flapping wings helicopter with changeable giro wing

The invention belongs to the aircraft class.

The invention of aircraft has realized the dream of human flight.But require and many condition restriction because of its expensive cost with to the specialization of driving, make the outsider dare less to make inquiries.

Over the past thousands of years, humanly thirst for freely circling in the air on high as small bird.Since Leonardo da Vinci, people had not abandoned all the time to making the trial of plain rotor aircraft.So rarely have the winner, all be the complicated track of pinion motion when people are difficult to imitate birds flight.The aircraft of producing, otherwise the lift that produces when pouncing under the wing when lifting with wing the negative lift of generation cancel out each other; Perhaps lift is not enough to overcome the gravity of self and load and can't bear practical.

The invention is intended to design a kind of device, the action of approximate simulation birds pinion when flight changes (hereinafter to be referred as becoming the wing) on the principle.Make plane airfoil when doing relative motion with air-flow air-flow to the force direction of aerofoil above aircraft (normally opposite direction) all the time with gravity.The title of this device is " becoming wing actuator ".

The effect that becomes wing actuator is to produce and synchronous power of aspect and relevant start variable, by linkage and change wing actuator, the variation of control wing angle, when making wing plate and air-flow do relative motion air-flow to the application force of aerofoil all the time towards the top of aircraft (this power and start variable abbreviation " making momentum ").Irrelevant because of becoming the lift that wing actuator produces with the horizontal velocity of aircraft, so this aircraft certificate has the vertical takeoff and landing function.

Technical description

One becomes wing actuator

Become wing actuator two kinds of design plans are arranged: grooved rail formula and cam-type

(one) the grooved rail formula becomes wing actuator

The grooved rail formula becomes wing actuator and is made up of two parts: Guiding machine, wheel hub

" one " structure

(1) Guiding machine

1: structure

Fig. 1 is the left view of Guiding machine; Fig. 2 is the right elevation of Guiding machine.

(1) body: body is the notched tubular parts in a side

(2) grooved rail: in order to determine the groove of object space position

2: the mechanism of action

(1): diagram: Fig. 3 is a body side expansion drawing

Wherein Y to Y1 is the girth of body.If its radius is R; R=1; Y1Y=2 Л then

YAY=Y1YA=Л (grooved rail 1/2 girth)

YO＝YAO＝Л/2

OX＝1

Curve is that radius is R, the sine curve of R=1.

(2): illustrate: slide block is inserted groove, under external force, slide block in groove from Y to Y1 direction motion (being equivalent to slide block moves in a circle around body).Under the promotion of cell wall, slide block will be done the motion (be equivalent to slide block body is done cross motion, precession is in like manner on bolt with nut) of OX direction simultaneously.Its displacement has following rule

In Y to YA interval (slide block around the body movement half cycle, Л radian), displacement is deferred to sinusoidal variable, and maxim is 1 (radian be in Л/2 o'clock).

In YA to Y1 interval (slide block is around body Л to the 2 Л radian that moves in a circle, second cycle), the slider displacement amount is 0.

If (maintaining static) determined in the body locus, the each point locus is determined naturally in the groove.Slide block around body in groove around body movement, then the cross travel amount of slide block will change with the body cycle of doing synchronously.If in order to change wing angle (the change wing), this power and displacement are preamble said " become the wing and make momentum " with this power and displacement.Because (the Guiding machine body is fixed on the aircraft) determined in the relative aircraft space of Guiding machine body position.Then become the wing and do momentum output be consistent with aspect all the time (synchronism).

(2) wheel hub

Wheel hub is cylindric parts, in order to rotatable wing axle to be installed and to become wing actuator (being tooth bar, gear), is the operating part that becomes wing system.

1: structure

Fig. 4 is the front elevation of wheel hub; Fig. 5 is the lateral plan of wheel hub.Wherein

1 wheel hub hub body, 2 slotted eyes, 4 tooth bars, 5 gears, 6 wing axles, 7 wing plates (part)

" two " system in combination

The wheel hub concentric locking collar is loaded on outside the Guiding machine, slide block is passed slotted eye insert groove, then slide block makes momentum and can pass to by the slotted eye of wheel hub and become wing actuator.

" three " do process

Fig. 6 Fig. 7 is that scheme drawing (part, one of 4 wing axles) is launched in the wheel hub side.Wherein:

1: hub body, 2: slotted eye, 3: connect tooth bar and pass the interior slide block of wheel hub slotted eye insertion Guiding machine groove, 4: tooth bar, 5: gear, 6: wing axle 7: wing plate; 0-N represents to become the wing and rotates pairing arc length, a as shift length and the gear that momentum produces tooth bar: the wing plate anglec of rotation.

Slide block is made circular movement around Guiding machine under the wheel hub slotted eye promotes, promoted to do cross motion by the groove cell wall again simultaneously, drive tooth bar and do cross motion (miles of relative movement is N), the gear that is engaged with then drives the rotation of wing axle, and the wing plate angle that is fixed on the wing axle will change thereupon, and angle variable a is Л/2 (0-90 degree angles).As Fig. 6

Adjust the first dress angle of Guiding machine, make it make momentum and export with the sine trend when wing plate is descending, the angle of wing plate changes with the sine trend synchronously.When (an angle of 90 degrees, wing plate level attitude), wing plate is vertical with its sense of motion to Л/2.The application force maximum of aerofoil and air-flow (can think 100% in theory).When rotor rotated, air provided lift to the antagonistic force of aerofoil for aircraft.Run on O-YA (Fig. 3) interval at slide block, the change wing makes momentum and the wing plate angle tends to decrescence with sine, and the summit returns 0 extremely down.So go round and begin again, realize becoming synchronously the target of the wing.In the time of in the middle of wing plate is in 0-Л/2 (radian) and Л/2-Л (radian), air-flow is the making a concerted effort of both direction forward that make progress to the application force of aerofoil, and its ratio and its angle are sine relation.In that aircraft is flat when flying, this forward the thrust that provides of power and attitude propelling unit constitute the tractive force that aircraft advances jointly.In the landing stage, change attitude propeller thrust direction, make it opposite with the tractive force direction, just can control the aircraft vertical takeoff and landing and hover, multiple attitude such as retreat.

In the semiperiod that wing plate rises, slide block runs on Guiding machine does not have the half cycle of doing momentum output, this moment, wing plate was in the rising half cycle, wing plate angle parallel with its sense of motion (being that aerofoil and air-flow are not had an effect), the negative lift (air is to the resistance of aerofoil) that produces when then wing plate rises was 0 (in theory).As Fig. 7.

This aircraft rotor that Here it is only produces lift and does not produce the groundwork of resistance.

(in actual engineering design, as long as the curvature of groove is variable. satisfy the gear number of teeth and be the rack displacement number of teeth 4 times, just can in 0-90 degree angular region, rotate by driven gear, realize becoming synchronously the target of the wing)

(two) cam-type becomes wing actuator

It is to utilize the eccentricity generation of cam to make momentum synchronously that cam-type becomes wing actuator.

1: structure

Fig. 8 is the structural representation of cam-type Guiding machine.

Wherein 1 is wheel hub, the 2nd, and cam, the 3rd, slide block, N are represented the cam degree of eccentricity

2: the mechanism of action

If cam dwell of cam radius is R, the eccentric arm maxim is R+N, and slide block passes wheel hub and cam is tangent, as shown in Figure 8, when wheel hub moves in a circle under external force, will drive slide block and move in a circle around cam.When slide block ran on the concentric half cycle of cam, the slide block radial displacement was 0; When it ran on protruding half cycle, the slide block radial displacement was the sinusoidal variations trend.Its maxim is N.If change by hydraulic pressure or connecting rod control wing plate angle with this displacement, can realize becoming synchronously the target of the wing equally.

(three) supplemental instruction

Change the curvature of groove or the degree of eccentricity of cam, can also change lifting force of wings gravitation ratio.As shown in Figure 9

The line style of groove shown in 1 is in slide block to do the stroke of momentum higher value long, is the type based on lift.

Line style shown in 2 is in slide block to do the stroke of momentum intermediate value long, is the type based on tractive force.It is the same that the change cam is made the momentum principle.

Two entire machine design schemes

Guaranteeing that this programme lays particular emphasis on the principle of simple saving under the safe and reliable preceding topic.

(1) structure

Figure 10 is the complete machine structure scheme drawing

1: body

It is a cuboid framework.Its effect is to determine each alliance (support of fixed parts is advisable with the high-strength light composite material).

2: become wing actuator

3: the attitude propelling unit

4: the cabin body

By driving compartment, piggyback pod, the load cabin is formed.

(2) structure explanation

1: four inhead type becomes wing actuator and forms a lift platform, and underneath type cabin body makes machine gravity be lower than the lift plane.Automatically keep aspect balance (the aircraft normal attitude is a level) so can utilize self gravitation.

2: the frame-type body is economical with materials to greatest extent, reduces cost.Because of the low-altitude low-speed of aircraft, so require extremely low to the pneumatic external form of aircraft.If aircraft power transmission adopts flexible structure (as belt-driving), then allow body that by a relatively large margin elastic deformation is arranged.Can further reduce material requirements conversely.And elastically-deformable shock-absorbing function also can increase riding comfort level.As further exploitation, be equipped with pole at each frame stretching out, then can under extreme case (when aircraft falls with free falling body state), absorb energy with its elastic deformation, guarantee passenger life safety, the safety that has greatly improved aircraft.

3: the attitude propelling unit can be used common screw propeller, can do horizontal vertical both direction rotation (as being contained on the gimbal table), by changing thrust direction control aspect.As not considering cost, adopt the helicopter tail rotor effect structure better.

4: the cabin body

By cargo hold, piggyback pod, driving compartment three parts are formed.

(1): cargo hold: the space of depositing useful load.

(2): piggyback pod: the cabin body that power plant is installed.

Illustrate: be advisable with two general purpose engines.Even two equal et out of orders of driving engine need only the time slightly successively, just can guarantee that aircraft safety lands.Add the safety factor that upper machine body provides, the design almost can reach absolutely the guarantee of occupant's life security.

(3) control loop

Change the angle of rake thrust of attitude to square and big or small, just can realize control aircraft.So control loop only needs three kinds of operational motions.

1: change attitude propelling unit level angle with the change of flight direction.

2: change attitude propelling unit vertical angle to change the aircraft pitch attitude.

3: change actuator and attitude propelling unit rotating speed, can realize control to lifting and speed.

Illustrate: change attitude propelling unit level angle with steering wheel, change attitude propelling unit vertical angle with rudder stock, with adjustment of pedals actuator and attitude propelling unit rotating speed.Whole system is three devices only, six kinds of actions

(wherein pitch attitude need not usually adjust) can realize aircraft lifting and landing, and advance and retreat are hovered and the regulation and control of multiple attitude such as left and right sides translation.

Annotate: power transmission is advisable with hydrostatic drive.

Characteristics: visual operation, manpower power, hydrostatic drive, simple in structure.Under the seaworthiness condition of low-altitude low-speed, its reliability safety is apparent.Even under extreme case (abort operation), its self-balancing performance also can guarantee the easy motion of aircraft on the above-below direction of front and back, and this almost can be described as a kind of " fool " aircraft.

Feasibility study

Society is self-evident to the demand of the vehicle of safe and convenient.The restriction conventional airplane move towards popular bottleneck and is that it involves great expense, and is subjected to that the place restriction reaches the specialty requirement of driving technique etc.

From technical description as can be known, safety of the present invention, reliability and operability foot may be practical; With regard to the cost opinion, except that driving engine, the material of remaining part and technical requirements all are lower than the related request that bicycle is made.As adopting market general-duty driving engine, its cost should be in 40,000 yuan of Renminbi.

Just think, when a kind of cheap, safe and reliable, after the aircraft of having an easy control in the matter comes out, who can be contained in the desire that three dimensional space freely circles in the air? though restricted by aviation management, as the family expenses vehicle or will treat time slightly that singly the market aspect social demand is just limitless.Even as a kind of converter tools, its ideal that becomes many families is selected.

Claims (5)

1: become the wing synchronously

Wing plate angle cyclomorphosis and synchronous with aspect, make wing plate when doing relative motion with air-flow air-flow to the application force of aerofoil above aircraft (normally relative direction) all the time with gravity.

2: become wing actuator synchronously

Utilize and make momentum synchronously by rack-and-gear or the rotatable wing axle change of piston lever drives wing plate angle.

3: grooved rail formula guides

Utilize grooved rail groove cell wall thrust constraint slide block movement direction, make that slide block produces the cycle and make momentum, become wing actuator, realize becoming synchronously the wing by the linkage start with the synchronous change wing of aspect.

4: the cam-type guides

The change wing that utilizes the eccentricity effect of cam to make slide block around its motion produce the cycle is made momentum and is driven and become wing actuator and make wing plate become the wing by designing requirement.

5: the frame-type housing construction

Utilize frame fixation machine parts with expendable weight, economical with materials.

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