CN209080159U - A kind of ducted fan and unmanned plane - Google Patents

Abstract

This application provides a kind of ducted fan and unmanned planes, are related to air vehicle technique field, to solve the problems, such as that existing ducted fan existing in the prior art cannot change the size of its lift by adjusting self structure.The ducted fan includes: the first duct, flabellum, duct pushing meanss and driving device；The flabellum is articulated in the driving device along first duct radial through articulation piece, and the flabellum is provided with shaft on one end of driving device, and the first duct inner surface is circumferentially arranged annular groove；One end of the shaft is located in the annular groove；The axis of the articulation piece is parallel with the axis of the shaft but not conllinear；The duct pushing meanss are connected with first duct, for pushing first duct to be axially moveable.Tilt angle of the ducted fan by adjusting flabellum, i.e., the size of adjustable ducted fan lift.

Description

A kind of ducted fan and unmanned plane

Technical field

This application involves vehicle technology fields, more particularly, to a kind of ducted fan and unmanned plane.

Background technique

Currently, the ducted fan on unmanned plane passes through the revolving speed for adjusting engine, and then adjust the lift of ducted fan Size, the number that the revolving speed of engine is conditioned is excessive, and the service life of engine is caused to be affected.Existing duct Fan can not change the size of its lift by adjusting self structure.

Utility model content

The application's is designed to provide a kind of ducted fan, to solve existing ducted fan existing in the prior art Cannot be by adjusting size of the self structure to change its lift the technical issues of.

Ducted fan provided by the present application, comprising: the first duct, flabellum, duct pushing meanss and driving device；

The flabellum is articulated in the driving device along first duct radial through articulation piece, the flabellum back From shaft is provided on one end of driving device, the first duct inner surface is circumferentially arranged annular groove；The shaft One end is located in the annular groove；The axis of the articulation piece is parallel with the axis of the shaft but not conllinear；The duct pushes away Dynamic device is connected with first duct, for pushing first duct to be axially moveable.

It further, further include the second duct, third duct and connector, first duct is located at second duct Between third duct, the diameter of first duct, the second duct and third duct is equal, and second duct and institute State the height that the distance between third duct is greater than first duct；The connector respectively with second duct and described Third duct is connected.

Further, the duct pushing meanss include motor, gear and rack gear；The output of the gear and the motor Axis is connected, and the gear is meshed with the rack gear, the motor for driving the gear to rotate, the rack gear with it is described First duct is connected.

Further, the shaft is provided with idler wheel on one end of the flabellum, the roller axis with described turn The axis of axis is parallel, and the idler wheel is located in the annular groove.

Further, the upper end of second duct is air inlet, and the lower end of the third duct is air outlet.

Further, radome fairing is provided in second duct, the radome fairing passes through first connecting rod and described second The inner wall of duct is connected, and the radome fairing is located at the top of the axis of the driving device output shaft.

Further, the driving device is arranged in the third duct, the driving device by second connecting rod with The inner wall of the third duct is connected.

Further, the number of the flabellum is multiple, and multiple flabellums are circumferentially uniformly distributed along the driving device.

Further, fixed block is provided on the driving end of the driving device, one end of the flabellum is turned by described Moving part is connect with the fixed block.

Compared with the existing technology, ducted fan described herein has the advantage that

Flabellum being articulated in driving device radial through articulation piece along the first duct in the ducted fan of the application, so that Flabellum can be rotated relative to driving device；Flabellum is provided with shaft on one end of driving device, the first duct inner surface Circumferentially it is provided with annular groove；One end of shaft is located in annular groove, i.e., flabellum can pass through shaft away from one end of driving device It rotates in a ring groove.The axis of articulation piece and the axis of shaft are parallel but not conllinear so that flabellum will not autobiography, duct pushes Device is connected with the first duct, and duct pushing meanss can push the first duct to be axially moveable.

When duct pushing meanss push the first duct to move up, flabellum also can be with the away from one end of driving device One duct moves upwardly together, and the stopping of the first duct is when moving up, and flabellum also stops away from one end of driving device to moving up It is dynamic；One end that i.e. flabellum is located in driving device is maintained at initial position, when flabellum is moved up away from one end of driving device, Flabellum can further tilt on the basis of its original state, i.e., the tilt angle of flabellum can generate certain variation, Jin Erhan The size of the lift of road fan can also generate variation.

The present apparatus is not necessarily to change the revolving speed of driving device, by adjusting the tilt angle of flabellum, i.e., adjustable ducted fan The size of lift.

The another object of the application is to propose a kind of unmanned plane, to solve existing duct wind existing in the prior art The technical issues of fan cannot be by adjusting size of the self structure to change its lift.

In order to achieve the above objectives, the technical solution of the application is achieved in that

A kind of unmanned plane is equipped with ducted fan as described in the above technical scheme in the unmanned plane.

Possessed advantage is identical compared with the existing technology with above-mentioned ducted fan for the unmanned plane, and details are not described herein.

Detailed description of the invention

It, below will be to specific in order to illustrate more clearly of the application specific embodiment or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the application, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram at the first visual angle of ducted fan provided by the embodiments of the present application；

Fig. 2 is the structural schematic diagram at the second visual angle of ducted fan provided by the embodiments of the present application；

Fig. 3 is the top view of ducted fan provided by the embodiments of the present application；

Fig. 4 is the side view of ducted fan provided by the embodiments of the present application；

Fig. 5 is the schematic cross-section of the first duct axial direction of Fig. 4；

Fig. 6 is the enlarged drawing in Fig. 5 at D.

Fig. 7 is the cross-sectional view in Fig. 4 along the direction C-C；

Fig. 8 is the connector connection with the second duct and third duct respectively of ducted fan provided by the embodiments of the present application Schematic diagram；

Fig. 9 is the enlarged drawing in Fig. 8 at A；

Figure 10 is the enlarged drawing in Fig. 8 at B.

In figure: 1- flabellum；The first duct of 2-；The second duct of 3-；4- third duct；5- connector；6- first connecting portion；7- Second connecting portion；8- radome fairing；9- first connecting rod；10- fixed block；11- second connecting rod；12- driving device；13- annular groove； 14- shaft；15- articulation piece；16- idler wheel；17- motor；18- gear；19- rack gear.

Specific embodiment

It is clearly and completely described below in conjunction with technical solution of the attached drawing to the application, it is clear that described implementation Example is some embodiments of the present application, instead of all the embodiments.

The component of the embodiment of the present application for usually describing and showing in attached drawing here can be with a variety of different configurations To arrange and design.Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below and is wanted The scope of the present application of protection is sought, but is merely representative of the selected embodiment of the application.

Based on the embodiment in the application, those of ordinary skill in the art are obtained without making creative work The every other embodiment obtained, shall fall in the protection scope of this application.

In the description of the present application, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for describe the application and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in application.

As Figure 1-10 shows, ducted fan provided by the embodiments of the present application, including the first duct 2, flabellum 1, duct push Device and driving device 12；Flabellum 1 is articulated in driving device 12 along the first duct 2 radial through articulation piece 15, and flabellum 1 is carried on the back Shaft 14 is provided on one end from driving device 12,2 inner surface of the first duct is circumferentially arranged annular groove 13；Shaft 14 One end is located in annular groove 13；The axis of articulation piece 15 is parallel with the axis of shaft 14 but not conllinear；Duct pushing meanss and the One duct 2 is connected, for pushing the first duct 2 to be axially moveable.

The flabellum 1 of the ducted fan provided in the present embodiment is along the hinged radial through articulation piece 15 of first duct 2 In in the driving device 12, allow flabellum 1 relative to driving device 12 rotate；Flabellum 1 deviates from one end of driving device 12 On be provided with shaft 14, the circumferential direction of 2 inner surface of the first duct is provided with annular groove 13；One end of shaft 14 is located at the annular groove In 13, i.e., flabellum 1 can be rotated in annular groove 13 away from one end of driving device 12 by shaft 14.Articulation piece 15 and shaft 14 rotation direction is identical, and the axis of articulation piece 15 is not conllinear with the axis of shaft 14 so that flabellum 1 will not autobiography, duct pushes away Dynamic device is connected with the first duct 2, and duct pushing meanss can push the first duct 2 to be axially moveable.

When duct pushing meanss push the first duct 2 to move up, flabellum 1 also can be with away from one end of driving device 12 The first duct 2 move upwardly together, when moving up, flabellum 1 also stops the stopping of the first duct 2 away from one end of driving device 12 Only move up；One end that i.e. flabellum 1 is located in driving device 12 is maintained at initial position, and flabellum 1 is away from driving device 12 When one end moves up, flabellum 1 can further tilt on the basis of its original state, i.e., the tilt angle of flabellum 1 can generate Certain variation, and then the size of the lift of ducted fan can also generate variation.

The ducted fan provided in the present embodiment is not necessarily to change the revolving speed of driving device 12, by the inclination for adjusting flabellum 1 Angle, i.e., the size of adjustable ducted fan lift.

For example, when the lift of ducted fan needs to turn down, 1 original state of flabellum are as follows: between flabellum 1 and horizontal plane Angle be 30 degree, push up the first duct 2 by duct pushing meanss, that is to say, that the first duct 2 can Xiang Shangyi at this time Dynamic certain distance, so that flabellum 1 can tilt down to a certain degree, the angle of flabellum 1 and horizontal plane is 40 degree at this time, ducted fan Lift become smaller.

When the lift of ducted fan needs to tune up, 1 original state of flabellum are as follows: the angle between flabellum 1 and horizontal plane is 30 degree, the first duct 2 is driven to move downward by duct pushing meanss, that is to say, that the first duct 2 can move down one at this time Set a distance, so that the upward angled somewhat of the meeting of flabellum 1, the angle of flabellum 1 and horizontal plane is 20 degree at this time, at this time ducted fan Lift become larger.

The ducted fan provided in the present embodiment further include further include the second duct 3, third duct 4 and connector 5, it is described First duct 2 is between second duct 3 and third duct 4, first duct 2, the second duct 3 and third duct 4 Diameter be equal, and the distance between second duct 3 and the third duct 4 be greater than first duct 2 height； The connector 5 is connected with second duct 3 and the third duct 4 respectively.

Specifically, as shown in Figure 1, being provided with first connecting portion 6 and second connecting portion 7, i.e. first connecting portion on connector 5 6 are located on the both ends of connector 5 with second connecting portion 7, and are located at ipsilateral, first connecting portion 6 and the second duct 3 of ducted fan It is connected, second connecting portion 7 is connected with third duct 4, and the distance between the second duct 3 and third duct 4 are greater than first and contain The height in road 2, that is to say, that be respectively present between the first duct 2 and the second duct 3, between the first duct 2 and third duct 4 Gap allows duct pushing meanss that the first duct 2 is driven to move axially.

In the present embodiment, duct pushing meanss include motor 17, gear 18 and rack gear 19；Motor 17 is set to third duct On 4 inner wall, gear 18 is connected with the output shaft of motor 17, and gear 18 is meshed with rack gear 19, and motor 17 is used for sliding tooth 18 rotation of wheel, rack gear 19 are connected with the first duct 2.

Specifically, when 17 output end of motor rotates forward, motor 17 is rotated with moving gear 18, due to gear 18 and rack gear 19 are meshed, and gear 18 can be moved up with carry-over bar 19, and when rising to suitable height, motor 17 stops operating, thus tooth The stopping of item 19 moves up, and since rack gear 19 is connected with the first duct 2, when rack gear 19 moves up, the first duct 2 also can It moves up therewith, and then the first duct 2 will drive flabellum 1 and move up away from one end of driving device 12；Rack gear 19 stops When upper mobile, the first duct 2 also stops moving up.

When 17 output end of motor rotates backward, motor 17 is rotated with moving gear 18, and gear 18 can be downward with carry-over bar 19 Mobile, when rack gear 19 is moved down into suitable location, motor 17 stops operating, so that rack gear 19 stops working as rack gear to bottom offset 19 when stopping to bottom offset, and the first duct 2 can also stop moving down therewith.

Gear 18 and rack gear 19, which should have wearability again on combination of materials, good running-in characteristic, therefore, gear 18 is particularly important with the material of rack gear 19；Optionally, gear 18 can be selected steel alloy or quality carbon steel, and 18 flank of tooth of gear can be through Carburizing, quenching or nitriding etc. are heat-treated and obtain higher hardness, and rack gear 19 can be selected tin bronze or be cast with metal mold, when It is so not limited only to this, can be specifically arranged according to the actual situation.

Optionally, duct pushing meanss may be provided with multiple, be not particularly limited herein, can specifically set according to the actual situation It is fixed.

For example, as shown in figure 5, when duct pushing meanss are set as 2, the promotion of the first duct 2 can be referred to as 3 pushing meanss of device and the second duct, 2 pushing meanss of the first duct and 3 pushing meanss of the second duct respectively with 2 phase of the first duct Connection, 2 pushing meanss of the first duct and the second pushing meanss about 2 axis of the first duct in symmetrical so that the first duct 2 can be with Preferably it is displaced along axial direction.

In a kind of preferred embodiment of the present embodiment, shaft 14 is provided with idler wheel on one end of the flabellum 1 16,16 axis of idler wheel is parallel with the axis of the shaft 14, and idler wheel 16 is located in the annular groove 13.

Specifically, when the first duct 2 drives flabellum 1 to move up, flabellum 1 is tilted, at this time the company of flabellum 1 and shaft 14 The place of connecing can be rotated accordingly, and one end of shaft 14 is provided with idler wheel 16, and idler wheel 16 can rotate in annular groove 13, shaft 14 is identical as the rotation direction of idler wheel 16, and flabellum 1 can be made preferably to tilt.

Further, the upper end of the second duct 3 is air inlet, and the lower end of third duct 4 is air outlet.That is, For ducted fan in use, the second duct 3 is located at the top of the first duct 2, the first duct 2 is located at the top of third duct 4, and The axis of the axis of one duct 2, the axis of the second duct 3 and third duct 4 is located along the same line.

Preferably, radome fairing 8 is provided in the second duct 3, radome fairing 8 passes through the inner wall of first connecting rod 9 and the second duct 3 It is connected, so that radome fairing 8 is fixed in the second duct 3, radome fairing 8 is located at the top of the axis of 12 output shaft of driving device, That is, radome fairing 8 is located on the extended line of the axis of 12 output shaft of driving device, radome fairing 8 can be contained to entering The air-flow of the air inlet in road plays the role of rectification, so that ducted fan is become a mandarin more uniform.

Optionally, the number of first connecting rod 9 may be configured as multiple, be not specifically limited herein, can have according to the actual situation Body setting.

For example, when 9 quantity of first connecting rod is 2, first connecting rod 9 can be symmetrically arranged in 8 periphery of radome fairing On, one end of first connecting rod 9 is connect with radome fairing 8, and the other end of first connecting rod 9 is connected with the inner wall of the second duct 3.

When the quantity of first connecting rod 9 is 4, four first connecting rods 9 can be uniformly distributed on the periphery of radome fairing 8, can Selection of land, the angle between every two adjacent first connecting rod 9 is 90 degree.

Preferably, driving device 12 is arranged in third duct 4, and driving device 12 passes through second connecting rod 11 and third duct 4 inner wall is connected, i.e., second connecting rod 11 is for driving device 12 to be fixed in third duct 4.

Optionally, it is provided with protective cover on the periphery of driving device 12, for protecting driving device 12, that is to say, that drive Dynamic device 12 is located in protective cover, is connected between protective cover and the inner wall of third duct 4 by second connecting rod 11, i.e. second connecting rod 11 one end is connected with protective cover, and the other end of second connecting rod 11 is connected with the inner wall of third duct 4.

Optionally, the number of second connecting rod 11 may be configured as multiple, be not specifically limited herein, can have according to the actual situation Body setting.

For example, when 11 quantity of second connecting rod is 2, second connecting rod 11 can be symmetrically arranged in protective cover periphery On.

When the quantity of first connecting rod 9 is 4, four second connecting rods 11 can be uniformly distributed on the periphery of protective cover, can Selection of land, the angle between every two adjacent second connecting rod 11 is 90 degree.

First connecting rod 9 and second connecting rod 11 all have higher stretching resistance, compressive resistance, while intensity also with higher, And there is enough rigidity and toughness.Optionally, the material of first connecting rod 9 and second connecting rod 11 can be medium carbon steel, middle carbon Steel alloy, forging cast iron or spheroidal graphite cast-iron etc., are not specifically limited herein, can specifically be arranged according to the actual situation.

In the present embodiment, the number of flabellum 1 be it is multiple, multiple flabellums 1 are uniformly distributed along driving device 12 is circumferential.

For example, when flabellum 1 is 4,4 flabellums 1 can be uniformly distributed in the periphery at the driving end of driving device 12 On, optionally, formed angle is 90 degree between every two adjacent flabellum 1.

When the quantity of first connecting rod 9 is 5, similarly, 5 flabellums 1 can be uniformly distributed in the driving end of driving device 12 Periphery on, optionally, formed angle is 72 degree between every two adjacent flabellum 1.

In an embodiment of the present embodiment, it is provided with fixed block 10 on the driving end of driving device 12, the one of flabellum 1 End is connect by the articulation piece 15 with fixed block 10, and multiple flabellums 1 can be uniformly distributed on the periphery of rotating block.

In one of embodiment of the present embodiment, a kind of unmanned plane, including above-mentioned ducted fan are additionally provided.

In this embodiment, since unmanned plane includes the ducted fan that any of the above-described embodiment provides, thus there is duct Whole beneficial effects that fan has, this is no longer going to repeat them.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the application, rather than its limitations；To the greatest extent Pipe is described in detail the application referring to foregoing embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement；And these are modified or replaceed, each embodiment technology of the application that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (10)

1. a kind of ducted fan characterized by comprising the first duct, flabellum, duct pushing meanss and driving device；

The flabellum is articulated in the driving device along first duct radial through articulation piece, and the flabellum is away from drive It is provided with shaft on one end of dynamic device, the first duct inner surface is circumferentially arranged annular groove；One end of the shaft In the annular groove；The axis of the articulation piece is parallel with the axis of the shaft but not conllinear；The duct pushes dress It sets and is connected with first duct, for pushing first duct to be axially moveable.

2. ducted fan according to claim 1, which is characterized in that it further include the second duct, third duct and connector, First duct is between second duct and third duct, first duct, the second duct and third duct Diameter is equal, and the distance between second duct and the third duct are greater than the height of first duct；It is described Connector is connected with second duct and the third duct respectively.

3. ducted fan according to claim 1, which is characterized in that the duct pushing meanss include motor, gear and Rack gear；The gear is connected with the output shaft of the motor, and the gear is meshed with the rack gear, and the motor is for driving The gear rotation is moved, the rack gear is connected with first duct.

4. ducted fan according to claim 1, which is characterized in that the shaft is arranged on one end of the flabellum There is idler wheel, the roller axis is parallel with the axis of the shaft, and the idler wheel is located in the annular groove.

5. ducted fan according to claim 2, which is characterized in that the upper end of second duct is air inlet, described The lower end of third duct is air outlet.

6. ducted fan according to claim 2, which is characterized in that it is provided with radome fairing in second duct, it is described Radome fairing is connected by first connecting rod with the inner wall of second duct, and the radome fairing is located at the driving device output shaft Axis top.

7. ducted fan according to claim 2, which is characterized in that the driving device is arranged in the third duct Interior, the driving device is connected by second connecting rod with the inner wall of the third duct.

8. ducted fan according to claim 1, which is characterized in that the number of the flabellum is multiple, multiple fans Leaf is circumferentially uniformly distributed along the driving device.

9. ducted fan according to claim 1, which is characterized in that be provided with fixation on the driving end of the driving device One end of block, the flabellum is connect by the articulation piece with the fixed block.

10. a kind of unmanned plane, which is characterized in that including ducted fan as claimed in any one of claims 1-9 wherein.