CN2581325Y

CN2581325Y - Ornithopter

Info

Publication number: CN2581325Y
Application number: CN 02273065
Authority: CN
Inventors: 赖金群
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-04
Filing date: 2002-09-04
Publication date: 2003-10-22
Anticipated expiration: 2012-09-04

Abstract

The utility model provides a wing flapping device which solves the problem that the vibration of biomimetic wings of the existing flapping wings is not lifelike enough. The wing flapping device of the utility model comprises a miniature motor and the biomimetic wings, wherein, a rotating shaft of the motor is connected with a sleeve barrel in which a transmission rod is sheathed, the other end of the transmission rod is connected with the biomimetic wings, and through a spring, the intermediate section of the transmission rod is connected with a fan-shaped bracket which is extended from the lower part of the motor. The wing flapping device of the utility model utilizes resistance which is generated when the spring is twisted and elastic force which is generated when the spring is restored to cause the rotating shaft of the motor to rotate for one circle, the eccentric motion of the sleeve barrel has slow velocity and quick velocity, and therefore, the flap of the biomimetic wings is more similar to the vibration of wings at both sides of an insect when the insect flies.

Description

A kind of flapping wing device

Technical field

The utility model relates to a kind of bionic flapping-wing device, specifically, relates to a kind of flapping wing device of both wings vibration when imitating insect flying.

Background technology

The bionics scientist is through constantly observing and experiment, and found the principle of insect flying: insect is the vibration that utilizes health both sides wing, thereby produces one sweptback air-flow, utilizes its antagonistic force to fly forward then.Based on this understanding, people work out the flapping-wing aircraft of various structures, but do not make a flapping-wing aircraft with practical value as yet, because the made stiff wing of people can't be comparable with the wing of insect.A kind of structure of flapping-wing aircraft is disclosed on (September 26 calendar year 2001 Granted publication day) as Chinese patent ZL00240596.2, it is to support a hinge axis that is attached on the vibration thin slice respectively at the frame two ends, the vibration thin slice outside very thin bionical wing of a slice of ining succession separately, the upper and lower surface of vibration thin slice inboard is provided with an electromagnetic induction mechanism, pass through electromagnetic induction, open when closing when making circuit, thereby make ceaselessly fast vibration of the bionical wing, this vibration is to vibrate uniformly up and down, and also there is certain distance in wing real vibration in both sides during with insect flying.

Summary of the invention

The purpose of this utility model provides a kind of flapping wing device simple in structure, and the bionical wing vibration of this device more is similar to the vibration of insect wing.

For achieving the above object, flapping wing device of the present utility model comprises the micro-machine and the bionical wing, the rotating shaft side of above-mentioned motor connects a sleeve, the above-mentioned bionical wing is connected with a drive link, the other end of drive link is enclosed within the sleeve, the centre portion of drive link is connected with the fan that the motor below extends out by spring, the spring of connection support axis and the point of connection of drive link are below drive link, and near sleeve, the spring of connection support both sides and the point of connection of drive link are in the both sides of drive link, and the close bionical wing.

Above-mentioned flapping wing device, the spring on the support are three.

For drive link one end being moved freely in sleeve and can keeping relatively-stationary path of motion, the diameter of sleeve and the diameter ratio of drive link are 3: 2.

Above-mentioned flapping wing device, sleeve centerline become 10 ° of-30 ° of angles with the machine shaft axis.

Flapping wing device of the present utility model, the power that relies on motor to provide, drive drive link by sleeve, make drive link one end do eccentric motion along the track that sleeve moves, and the centre portion of drive link is drawn by spring, thereby make with the bionical wing of drive link other end bonded assembly and produce the effect of swing, and resistance that spring when distortion produces and the elastic force that produces when recovering, machine shaft is rotated a circle, the movement rate of sleeve have have slowly fast, the vibration of the vibration that causes bionical wing both sides wing during more like insect flying.Flapping wing device of the present utility model can also provide a valid approach for the further research of flapping-wing aircraft.

Description of drawings

Fig. 1 is the structural representation of the utility model bionic flapping-wing device

Fig. 2 is A indication part machine shaft and a sleeve connection structure enlarged drawing among Fig. 1

Specific embodiment

Flapping wing device of the present utility model is to be the center left-right symmetric with the motor, as shown in the figure, and 1, motor, 2, sleeve, 3, drive link, 4, the bionical wing, 5, support, 6,7,8, spring, 9, machine shaft, 10, section.

From Fig. 1,2 as can be seen, rotating shaft 9 one sides at motor 1, by 10 coupling bushs 2 of cutting into slices, drive link 3 one ends connect the bionical wing 4, one end inserts sleeve 2, drive link 3 centre portions are being drawn by the support 5 with three springs that the motor lower end extends out, support 5 is fan-shaped distribution, middle springs 6 is positioned at drive link 3 belows with the point of connection of drive link, and, playing the traction drive link near sleeve one side, the point of connection of both sides spring 7,8 and drive link is positioned at the drive link both sides, and, play the flexible fastening drive link near the bionical wing one side; For drive link is moved freely, and can keep relative path of motion in sleeve, the diameter ratio of the diameter of sleeve 2 and drive link 3 preferably 3: 2, and preferably sleeve centerline and machine shaft are mutually 10-30 ℃ of angle.

Electrical power is started working, rotating shaft drives sleeve and rotates together, drive link one end that is positioned at sleeve is done eccentric motion along the track that sleeve moves, because the drive link centre portion is being drawn by the spring on the support, the bionical wing that connects the drive link other end just can only produce swing, and motor speed is accelerated, and the frequency of swing is just accelerated, motor speed is slow, and the frequency of swing is slow; Because the traction drive link is spring, rotating shaft rotates a circle, and when sleeve begins towards changeing down, drive link compressing middle springs produces resistance, and rotating speed is slack-off, and the frequency of swing is just slow; When sleeve be in rotating shaft under, the spring degree maximum that suffers oppression, the resistance of generation is also maximum, rotating speed is the slowest, the frequency of swing is also the slowest; When sleeve begins towards last commentaries on classics, spring begins to recover, and resistance reduces, rotating speed accelerates, and the frequency of swing is just fast, when turning to of the restoring force of spring and sleeve moment suits when consistent, quickened the speed of recovering, rotating speed is the fastest, and the frequency of beating is also the fastest, the needs that meet the air-flow momentary action make the bionical wing obtain one very big power that raises, like this, machine shaft whenever rotates a circle, above-mentioned motion just repeats once, utilizes this power of raising, and flapping wing device is flown forward.

Claims

1, a kind of flapping wing device, comprise the micro-machine and the bionical wing, it is characterized in that: the rotating shaft side of described motor connects a sleeve, the described bionical wing is connected with a drive link, the other end of drive link is enclosed within the sleeve, the centre portion of drive link is connected with the fan that described motor lower portion extends out by spring, the spring of connection support axis and the point of connection of drive link are below drive link, and near sleeve, the spring of connection support both sides and the point of connection of drive link are in the both sides of drive link, and the close bionical wing.

2, flapping wing device according to claim 1 is characterized in that: described number of springs is three.

3, flapping wing device according to claim 1 and 2 is characterized in that: described sleeve diameter and drive link diameter ratio are 3: 2.

4, flapping wing device according to claim 1 and 2 is characterized in that: described sleeve centerline becomes 10 ° of-30 ° of angles with the machine shaft axis.