CN218751382U

CN218751382U - Single-motor miniature flapping-wing aircraft

Info

Publication number: CN218751382U
Application number: CN202222428368.0U
Authority: CN
Inventors: 黄铸; 冯亚涛; 秦艺嘉; 韩雄韬; 申晓颖
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-03-28
Anticipated expiration: 2032-09-14

Abstract

The utility model discloses a single-motor miniature flapping-wing aircraft, which belongs to the field of miniature flapping-wing aircraft. The aircraft comprises a rack, and a transmission mechanism, two sets of crank link mechanisms and an empennage mechanism which are arranged on the rack. The transmission mechanism comprises a motor, a motor shaft gear, a duplicate gear, a transmission shaft and the like; the crank connecting rod mechanism comprises a crank gear, a connecting rod, a rocker and a wing; the motor of the transmission part converts circular motion into up-and-down flapping motion of wings through two-stage gear reduction and a crank connecting rod mechanism, and sets a proper transmission ratio to ensure that the flapping frequency of the wings and the generated lift force meet the requirement of flying of an aircraft. The aircraft has the advantages that the motion synchronism of the left wing and the right wing is ensured through the symmetrically arranged crank link mechanisms, so that the stability of the whole flight is improved, the weight of the whole aircraft is reduced by arranging the motor for driving, and the design of miniaturization and light weight is realized.

Description

Single-motor miniature flapping-wing aircraft

Technical Field

The utility model relates to a technical field of flapping wing aircraft specifically indicates a miniature flapping wing aircraft of single motor.

Background

The miniature flapping wing aircraft is a novel aircraft flying through simulating birds or insects to flap wings, and compared with a fixed wing aircraft and a rotor aircraft, the flapping wing flying area has the advantages of higher flexibility, low noise, maneuverability, concealment and the like. Due to the advantages, the miniature flapping wing air vehicle has very wide application prospect in many fields such as civil use, national defense and the like. In recent years, with the rapid development of technologies such as aerodynamics, simulation and the like, the micro flapping wing aircraft has attracted wide attention at home and abroad, and a plurality of companies have made physical aircrafts.

However, the conventional flapping wing aircraft generally has some problems, such as low flight efficiency, unstable flight state, difficulty in controlling the steering mode, difficulty in miniaturization, light weight, and the like, and therefore, in order to further improve the flight effect of the miniature flapping wing aircraft, innovation and optimization are required on the driving mode and the structure.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical problem, provide a single motor miniature flapping wing aircraft.

In order to solve the technical problem, the utility model provides a technical scheme does: a single-motor miniature flapping-wing aircraft comprises a rack, a transmission mechanism, a tail wing mechanism and two sets of crank rocker mechanisms, wherein the transmission mechanism, the two sets of crank connecting rod mechanisms and the tail wing mechanism are all arranged on the rack.

Further, the frame includes pinion stand and bracing piece, the fixed front end that sets up at the bracing piece of pinion stand, the rear end of bracing piece is equipped with the fin mounting hole, is equipped with two gear mounting holes and two rocker mounting holes on the pinion stand, the bracing piece front end is equipped with motor fixing device.

Furthermore, the transmission mechanism comprises a motor, a motor sleeve, a motor shaft gear, a duplicate gear and a transmission shaft, wherein the motor shaft gear is arranged on a shaft of the motor, and the duplicate gear is arranged on the transmission shaft; the motor is arranged in a motor sleeve, the motor sleeve is fixed on the frame through a motor fixing device, and a large gear of the duplicate gear is meshed with a gear of the motor shaft.

Furthermore, the crank-rocker mechanism comprises crank gears, crank gear shafts, first rotating pairs, connecting rods, second rotating pairs, rockers, third rotating pairs and wings, the crank gear shafts are mounted on the gear mounting holes, the crank gears are mounted on the rack in a matched mode through the crank gear shafts and the gear mounting holes, two crank gears on the two crank-rocker mechanisms are meshed with each other, one crank gear is meshed with a pinion of the duplicate gear, the crank gears are provided with the first rotating pairs, the crank gears are connected with one ends of the connecting rods through the first rotating pairs, the other ends of the connecting rods are connected with the middles of the rockers through the second rotating pairs, the third rotating pairs are matched with the rocker mounting holes, one ends of the rockers are mounted on the rack through the third rotating pairs and the rocker mounting holes, the other ends of the rockers are connected with the wings, and the two crank-rocker mechanisms are symmetrically arranged on two sides of the rack.

Furthermore, the empennage mechanism comprises a flat wing, a vertical wing, a swing wing and a swing driver, the flat wing is fixed at the rear end of the rack through an empennage mounting hole and is kept horizontal, the vertical wing is fixedly arranged above the axis of the flat wing and is kept vertical, the rear end of the vertical wing is connected with the swing wing and the swing driver, and the swing wing can swing left and right under the driving of the swing driver.

Compared with the prior art, the utility model the advantage lie in: the utility model discloses well symmetry and the same four-bar linkage of a pair of complete symmetry have guaranteed the symmetry of wing motion and overall structure's stability, and the flight characteristics of birds have been pressed close to more to the oscillating frequency of having guaranteed the wing to the speed reduction of two-stage gear, and the influence of weight to complete machine lift has also been considered in the design of single motor in addition, and the lightening of quality can bring bigger lift and better flight effect.

Drawings

Fig. 1 is a schematic structural diagram of the single-motor miniature flapping-wing aircraft of the present invention.

Fig. 2 is a schematic structural diagram of the single-motor miniature ornithopter in a front view state.

Fig. 3 is a schematic structural diagram of the transmission mechanism of the single-motor miniature flapping-wing aircraft of the present invention.

Fig. 4 is a schematic diagram of a frame structure of the single-motor miniature flapping-wing aircraft of the present invention.

Fig. 5 is a schematic structural view of the empennage mechanism of the single-motor miniature ornithopter of the present invention.

As shown in the figure: 1. a motor cover; 2. a motor; 3. a motor shaft gear; 4. a duplicate gear; 5. a drive shaft; 6. a crank gear; 7. a crank gear shaft; 8. a first rotating pair; 9. a connecting rod; 10. a second revolute pair; 11. a rocker; 12. a third revolute pair; 13. wings; 14. a gear seat; 15. a support bar; 16. flat wing; 17. vertical wings; 18. swinging wings; 19. an oscillating drive.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With reference to the attached drawings, the single-motor micro flapping wing aircraft comprises a rack (a gear seat 14 and a support rod 15), a transmission mechanism (a motor 2, a motor sleeve 1, a motor shaft gear 3, a duplicate gear 4 and a transmission shaft 5), a tail wing mechanism (a flat wing 16, a vertical wing 17, a swing wing 18 and a swing driver 19) and two sets of crank and rocker mechanisms (a crank gear 6, a crank gear shaft 7, a first rotating pair 8, a connecting rod 9, a second rotating pair 10, a rocker 11, a third rotating pair 12 and a wing 13), wherein the transmission mechanism, the two sets of crank and rocker mechanisms and the tail wing mechanism are all arranged on the rack.

The motor 2 adopts an 8520 motor.

In the frame structure, the gear seat 14 is fixedly arranged at the front end of the support rod 15, the rear end of the support rod 15 is provided with an empennage mounting hole, the gear seat 14 is provided with two gear mounting holes and two rocker mounting holes, and the front end of the support rod 15 is provided with a motor fixing device.

In the transmission mechanism, a motor shaft gear 3 is arranged on a shaft of a motor 2, and a duplicate gear 4 is arranged on a transmission shaft 5; the motor 2 is arranged in the motor sleeve 1, the motor sleeve 1 is fixed on the frame through a motor fixing device, and a large gear of the duplicate gear 4 is meshed with the motor shaft gear 3.

In the crank rocker mechanism, a crank gear shaft 7 is arranged on a gear mounting hole, crank gears 6 are arranged on a rack in a matched mode through the crank gear shaft 7 and the gear mounting hole, two crank gears 6 on two sets of crank rocker mechanisms are meshed with each other, one crank gear 6 is meshed with a pinion of a duplicate gear 4, a first rotating pair 8 is arranged on each crank gear 6, each crank gear 6 is connected with one end of a connecting rod 9 through the corresponding first rotating pair 8, the other end of each connecting rod 9 is connected with the middle of a rocker 11 through a corresponding second rotating pair 10, the corresponding third rotating pair 12 is matched with the corresponding rocker mounting hole, one end of each rocker 11 is arranged on the rack through the corresponding third rotating pair 12 and the corresponding rocker mounting hole, the other end of each rocker 11 is connected with a wing 13, and the two sets of crank rocker mechanisms are symmetrically arranged on two sides of the rack.

In the tail wing mechanism, a flat wing 16 is fixed at the rear end of a rack through a tail wing mounting hole and is kept horizontal, a vertical wing 17 is fixedly arranged above the axis of the flat wing 16 and is kept vertical, the rear end of the vertical wing 17 is connected with a swing wing 18 and a swing driver 19, and the swing wing 18 can swing left and right under the driving of the swing driver 19.

The utility model discloses when concrete implementation, the motor drives motor shaft gear and rotates, and motor shaft gear drives duplicate gear and rotates, and then drives two crank gear's synchronous rotation, and crank gear drives the connecting rod motion through first revolute pair, and the connecting rod drives the rocking bar through the third revolute pair between second revolute pair and rocker and the frame and sways from top to bottom, and the rocker is through the upper and lower flapping that drives the wing with the coaxial cooperation of wing.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a single motor miniature flapping wing aircraft which characterized in that: the automobile tail wing mechanism comprises a rack, a transmission mechanism, a tail wing mechanism and two crank rocker mechanisms, wherein the transmission mechanism, the two crank link mechanisms and the tail wing mechanism are all arranged on the rack, the rack comprises a gear seat (14) and a supporting rod (15), the gear seat (14) is fixedly arranged at the front end of the supporting rod (15), a tail wing mounting hole is formed in the rear end of the supporting rod (15), two gear mounting holes and two rocker mounting holes are formed in the gear seat (14), and a motor fixing device is arranged at the front end of the supporting rod (15); the empennage mechanism comprises a flat wing (16), a vertical wing (17), a swing wing (18) and a swing driver (19), the flat wing (16) is fixed at the rear end of the rack through an empennage mounting hole and is kept horizontal, the vertical wing (17) is fixedly arranged above the axis of the flat wing (16) and is kept vertical, the rear end of the vertical wing (17) is connected with the swing wing (18) and the swing driver (19), and the swing wing (18) can swing left and right under the driving of the swing driver (19).

2. The single-motor micro ornithopter of claim 1, wherein: the transmission mechanism comprises a motor (2), a motor sleeve (1), a motor shaft gear (3), a duplicate gear (4) and a transmission shaft (5), wherein the motor shaft gear (3) is arranged on a shaft of the motor (2), and the duplicate gear (4) is arranged on the transmission shaft (5); the motor (2) is arranged in the motor sleeve (1), the motor sleeve (1) is fixed on the frame through a motor fixing device, and a large gear of the duplicate gear (4) is meshed with the motor shaft gear (3).

3. The single-motor micro ornithopter of claim 1, wherein: the crank and rocker mechanism comprises crank gears (6), crank gear shafts (7), first rotating pairs (8), connecting rods (9), second rotating pairs (10), rockers (11), third rotating pairs (12) and wings (13), wherein the crank gear shafts (7) are installed on gear installation holes, the crank gears (6) are installed on a rack in a matched mode through the crank gear shafts (7) and the gear installation holes, two crank gears (6) on the two sets of crank and rocker mechanisms are meshed with each other, one crank gear (6) is meshed with a pinion of the duplicate gear (4), the crank gears (6) are provided with the first rotating pairs (8), the crank gears (6) are connected with one ends of the connecting rods (9) through the first rotating pairs (8), the other ends of the connecting rods (9) are connected with the middle portions of the rockers (11) through the second rotating pairs (10), the third rotating pairs (12) are matched with the rocker installation holes, one ends of the rockers (11) are installed on the rack through the third rotating pairs (12) and the rocker installation holes, the wings (11) are connected with the rockers (13), and the two sets of the rocker mechanisms are symmetrically arranged on two sides of the rack.