WO2020000690A1

WO2020000690A1 - Fixed-wing unmanned aerial vehicle and empennage thereof

Info

Publication number: WO2020000690A1
Application number: PCT/CN2018/106273
Authority: WO
Inventors: 胡奔; 张圣鑫; 莫颂权; 李璐鑫; 王坤殿; 于建方
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2018-06-25
Filing date: 2018-09-18
Publication date: 2020-01-02
Also published as: CN208429234U

Abstract

A fixed-wing unmanned aerial vehicle and an empennage (10) thereof, comprising: a fixing member (100), a steering rudder (200), a first mounting member (310), a steering engine connector (320), a transmission member (340) and a steering engine (330). An opening (101) used for accommodating the steering rudder (200) is formed in the fixing member (100); the first mounting member (310) is pre-buried in the fixing member (100), a first end of the first mounting member (310) is fixed to the steering engine (330), and a second end thereof is provided with a first portion (314) protruding from the opening (101); a first end of the transmission member (340) is in transmission connection to the steering engine (330); a middle portion of the steering engine connector (320) is pre-buried in the steering rudder (200), a first end of the steering engine connector (320) is connected to a second end of the transmission member (340), and a second end thereof is rotatably connected to the first portion (314). The fixed-wing unmanned aerial vehicle and the empennage thereof may reduce wind resistance, thereby improving the flight efficiency and flight speed.

Description

Fixed-wing drone and its tail

Technical field

The embodiment of the invention relates to a fixed-wing drone and a tail wing thereof, and belongs to the technical field of drones.

Background technique

Drones are referred to as "unmanned aerial vehicles" and abbreviated as "UAV". They are unmanned aircrafts controlled by radio remote control equipment and self-provided program control devices, or are operated completely or intermittently autonomously by on-board computers. With the development of economy and technology, drones have been applied in various fields such as aerial photography, agricultural plant protection, micro-self-timer, express transportation, disaster rescue, wildlife observation, surveying and mapping, news reporting, power inspection and so on. From a technical perspective, existing drones can be divided into: fixed-wing drones, unmanned vertical take-off and landing aircraft, unmanned airships, unmanned helicopters, multi-rotor drones, and unmanned paragliders.

A fixed-wing UAV in the prior art includes a fuselage and a tail wing provided at a rear end of the fuselage. The tail wing includes a fixed part and a steering rudder connected to the fixed part through a steering gear and a crank link mechanism. The flight control system installed in the fuselage controls the steering gear to drive the crank link mechanism to drive the steering rudder relative to the fixed part. The rotation of the parts is used to control the steering of the fixed-wing drone.

However, in order to install a steering gear and a crank link mechanism in the existing fixed-wing UAV mentioned above, it is necessary to install a connecting piece on the fixed part of the tail wing and the side of the steering rudder, and then fix the fixed piece and the steering rudder on the connecting piece Therefore, the turning connection between the steering rudder and the fixed part is realized, which results in a large wind resistance when the fixed-wing UAV is flying in the air, which affects its flying efficiency.

Summary of the invention

Embodiments of the present invention provide a fixed-wing UAV and a tail wing to solve the above-mentioned or other potential problems in the prior art.

According to an aspect of the embodiment of the present invention, a rear wing is provided, including: a fixing member, a steering rudder, a first mounting member, a steering gear connection member, a transmission member, and a steering gear; the fixing member is formed to receive the steering rudder The first mounting member is embedded in the fixing member, the first end of the first mounting member is fixed to the steering gear, and the second end of the first mounting member is provided with a protrusion A first portion of the opening; a first end of the transmission member is drivingly connected to the steering gear; a middle portion of the steering gear connection member is embedded in the steering rudder, and the first portion of the steering gear connection member One end is fixed to the second end of the transmission member, and the second end of the steering gear connecting member is rotatably connected to the first portion.

The rear wing as described above, wherein a groove is formed on a side of the fixing member, and a first end of the first mounting member has a second portion protruding from the groove; the steering gear and the transmission member are accommodated In the groove; the steering gear is fixed to the second part.

The rear wing as described above, wherein the steering gear connecting member includes a rotating shaft and a connecting shaft, the rotating shaft is embedded in the steering rudder, and a first end of the rotating shaft is connected to the transmission member through the connecting shaft. The second end of the shaft is fixed, and the first end of the rotating shaft is rotatably connected to the first part of the steering gear connecting member.

The rear wing as described above, wherein the steering gear connecting member further comprises: an adapter, the first end of the adapter is fixed to the second end of the connecting shaft, and the second end of the adapter is connected to the The first end of the shaft is fixed.

The rear wing described above, wherein a mounting hole is formed at a first end of the rotating shaft, and a second end of the adapter is passed through and fixed in the mounting hole.

The rear wing as described above, wherein the rotating shaft is a hollow shaft.

The rear wing as described above, wherein the adapter and the shaft are adhesively fixed or interference fit.

The rear wing as described above, wherein the second end of the connection shaft and the first end of the adapter are screwed and fixed.

The rear wing as described above, wherein the connecting shaft passes through the second portion of the first mount.

The rear wing as described above, wherein the steering gear connecting member further includes a bearing, the bearing is penetrated in a bearing hole opened in the second part of the first mounting member, and the first end of the bearing abuts A second end of the retaining ring formed by the connecting shaft abuts on an end surface of the first end of the adapter.

The rear wing as described above, wherein at least one clamping groove is formed on a side wall of the first end of the connection shaft, and the second end of the transmission member is used for mounting in a fixing hole of the first end of the connection shaft. At least one convex edge is formed to cooperate with at least one of the latching grooves.

The rear wing as described above, wherein the retaining hole of the transmission member is further formed with a rib for abutting an end surface of the first end of the connecting shaft.

The rear wing as described above, wherein the rotating shaft is provided with a plurality of holes.

The rear wing as described above, wherein the first mounting member includes: a first support beam and a connection portion; the connection portion is fixed to the first support beam and is on the same side as the steering gear; the connection portion A chute and an electrical connection interface are formed for connecting with the fuselage.

The rear wing as described above, wherein the first mounting member further includes: a second support beam, the second support beam is spaced from the first support beam, and the connecting portion is respectively separated from the first support beam It is fixed to the second supporting beam.

The rear wing as described above, wherein the first support beam and / or the second support beam are provided with a plurality of holes.

The rear wing as described above, wherein the second part and the first part of the steering gear connecting member are two plastic parts fixed to the first end and the second end of the first support beam.

The rear wing described above, wherein the electrical connection interface is one of a plug and a spring probe.

The rear wing as described above, wherein the upper end of the opening is formed with an arc-shaped depression inward, and the steering rudder is formed with an arc-shaped protrusion that cooperates with the arc-shaped depression.

The rear wing as described above, wherein the transmission member includes a rudder arm and a rudder angle, a first end of the rudder arm is fixed to an output shaft of the steering gear, and a second end of the rudder arm is provided with the rudder arm. The oblong hole is matched with the first end of the rudder angle, and the second end of the rudder angle is fixed to the first end of the steering gear connecting piece.

The rear wing as described above, wherein the transmission member includes a steering wheel and a connecting rod, the steering wheel is fixed to an output shaft of the steering gear, and the first end of the connecting rod is fixed to the steering wheel, so The second end of the connecting rod is fixed to the first end of the steering gear connecting member.

According to another aspect of the embodiments of the present invention, a fixed-wing drone is provided, including a fuselage and a tail wing as described above.

The fixed-wing drone as described above, wherein the fuselage is provided with a slider for cooperation with a chute provided on the first mounting member of the tail wing.

According to the solution of the embodiment of the present invention, by embedding the first mounting member and the steering gear connecting member in the fixing member and the steering rudder, respectively, the connection structure for connecting the fixing member, the steering gear, the transmission member and the steering rudder is prevented from being located outside. In the environment, the wind resistance of the fixed-wing drone is reduced, and the flight efficiency and flight speed are improved.

The advantages of the additional aspects of the embodiments of the present invention will be partially given in the following description, and part of them will become apparent from the following description, or be learned through the practice of the embodiments of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features, and advantages of the embodiments of the present invention will become easier to understand by referring to the following detailed description of the accompanying drawings. In the drawings, various embodiments of the present invention will be described by way of example and not limitation, wherein:

FIG. 1 is an isometric view of a tail wing provided by an embodiment of the present invention; FIG.

Figure 2 is a perspective view of Figure 1;

3 is a right side view of FIG. 1;

Figure 4 is a transverse sectional view of Figure 1;

5 is a longitudinal sectional view of FIG. 1;

6 is a front view of the other components of FIG. 1 after removing the fixing member and the steering rudder;

Figure 7 is an exploded view of Figure 6;

8 is a schematic structural diagram of a rudder angle in FIG. 7;

9 is a schematic structural diagram of a rudder arm in FIG. 7;

10 is a schematic structural diagram of a connecting shaft in FIG. 7;

FIG. 11 is a schematic structural diagram of the adapter in FIG. 7.

In the picture:

10. Tail; 100; fixings; 101; openings;

102. Groove; 103. Arc-shaped depression; 200; Steering rudder;

201. Arc-shaped protrusions; 310; first mounting pieces; 311; first support beam;

3111, hole; 312, connection portion; 3121, plate-shaped body;

3122, sleeve; 3123, block structure; 3124, chute;

3125, electrical connection area; 313, second support beam; 3131, holes;

314, the first part; 3141, plates; 3142, sleeves;

3143, ribs; 3144, shaft holes; 315, the second part;

3151, plate structure; 3152, block structure; 3153, support platform;

3154, bearing hole; 320, steering gear connection; 321, shaft;

3211, hole; 322, connecting shaft; 3221, large diameter end;

3222, small diameter end; 3223, retaining ring; 3224, card slot;

323, adapter; 3321, large diameter end; 3232, small diameter end;

324, bearing; 330, steering gear; 340, transmission parts;

341. Rudder arm 3411. Long strip opening; 342. Rudder angle

3421, plate-shaped body; 3422, cylindrical; 3342, cooperation department;

3424. Fixing holes. 3425. Convex edges. 3426. Retaining edges.

343, bolt; 344, shaft sleeve.

detailed description

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present invention, but should not be construed as limiting the embodiments of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms “up”, “down”, “front”, “rear”, “left”, “right”, “top”, “bottom”, and “inner” The orientation or position relationship indicated by, "outer", "axial", "radial", "circumferential", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description. , Rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on embodiments of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the embodiment of the present invention, the meaning of "a plurality" is at least two, for example, two, three, etc., unless it is specifically and specifically defined otherwise.

In the embodiments of the present invention, the terms "installation", "connected", "connected", "fixed" and other terms shall be understood in a broad sense unless specified and limited otherwise. For example, they may be fixed connections, or may be Disassembly connection or integration; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements Relationship, unless explicitly defined otherwise. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention may be understood according to specific situations.

In the description of this specification, the description with reference to the terms “one embodiment”, “some embodiments”, “examples”, “specific examples”, or “some examples” and the like means specific features described in conjunction with the embodiments or examples , Structure, materials, or features are included in at least one embodiment or example of an embodiment of the present invention. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without any contradiction, those skilled in the art may combine and combine different embodiments or examples and features of the different embodiments or examples described in this specification.

The most widely used consumer drones are fixed-wing drones and multi-rotor drones. Compared with multi-rotor drones, fixed-wing drones can adopt a streamlined design for the fuselage, which is integrated into the aerodynamic design, so that the air resistance of fixed-wing drones during travel is reduced to improve flight efficiency and Flying speed. The purpose of this embodiment is to provide an improved fixed-wing drone and its tail to further reduce the air resistance of the fixed-wing drone in flight, thereby further improving its flight efficiency and flight speed.

1 is an isometric view of a tail wing provided by this embodiment; FIG. 2 is a perspective view of FIG. 1; FIG. 3 is a right side view of FIG. 1; FIG. 4 is a lateral cross-sectional view of FIG. 1; FIG. 6 is a front view of the other components after the fixing member and the steering rudder are removed in FIG. 1; FIG. 7 is an exploded view of FIG. 6.

The fixed-wing UAV provided in this embodiment includes a fuselage and a tail wing installed at the rear end of the fuselage. As shown in FIG. 1 to FIG. 7, the tail wing 10 includes: a fixing member 100, a steering rudder 200, a first mounting member 310, a steering gear connecting member 320, a transmission member 340, and a steering gear 330. Among them, the fixing member 100 is horizontally mounted on the fuselage, and an opening 101 for receiving the steering rudder 200 is formed on a rear side thereof. A first mounting member 310 is embedded in the fixing member 100. The left end of the first mounting member 310 is fixed to the steering gear 330, and the first end of the first mounting member 310 is provided with a first portion 314 protruding from the opening 101. A steering gear connector 320 is embedded in the steering rudder 200. The left end of the steering gear connector 320 protrudes from the steering rudder 200 and is fixed to the bottom end of the transmission member 340, and the right end thereof protrudes from the steering rudder 200 and rotates with the aforementioned first part 314. connection. The top end of the transmission member 340 is drivingly connected to the steering gear 330, so that by controlling the steering gear 330 to drive the transmission member 340 to move, the steering gear connecting member 320 fixed to the transmission member 340 is now rotated to the fixing member 100, thereby achieving unmanned fixed wings. The purpose of the machine steering.

In this embodiment, by embedding the first mounting member 310 and the steering gear connecting member 320 in the fixing member 100 and the steering rudder 200, respectively, it is avoided to connect the fixing member 100, the steering gear 330, the transmission member 340, and the steering rudder. The connection structure of the 200 is located in the external environment, thereby reducing the wind resistance of the fixed-wing drone and improving the flight efficiency and speed.

Specifically, referring to FIG. 1 to FIG. 5, the shapes of the fixing member 100 and the steering rudder 200 may have substantially the same shapes as those of the existing fixing members 100 and the steering rudder 200, and both of them include a shell and a shell filled therein. Inside the filling layer. For example, the housings of the fixing member 100 and the steering rudder 200 can be made of any suitable material such as plastic, carbon fiber, glass fiber, Kevlar fiber, etc. by molding or other suitable processes. The filling layer filled in the shell may be any suitable foamed material, including but not limited to expanded polypropylene (EPP) and expanded polystyrene polyethylene (EPO). By using a foam material, the first mounting member 310 and the steering gear connecting member 320 embedded in the fixing member 100 and the steering rudder 200 can be tightly connected with the fixing member 100 and the steering rudder 200, thereby improving the Connection strength to ensure flight safety.

Optionally, in order to avoid that the fitting clearance between the fixing member 100 and the steering rudder 200 is too large, in some embodiments, the upper end of the opening may be formed into an arc-shaped depression 103 as shown in FIG. An arc-shaped protrusion 201 is formed on the upper end to cooperate with the arc-shaped depression 103, thereby reducing the air resistance encountered during flight, and improving the flight efficiency and flight speed of the fixed-wing UAV.

Referring to FIGS. 2 to 4, in this embodiment, a groove 102 is optionally provided on the left side of the fixing member 100, and the steering gear 330 and the transmission member 340 are received in the groove 102. The left end of the first mounting member 310 is formed with a second portion 315 protruding from the groove 102, and the steering gear 330 is fixed on the second portion 315. By providing the fixing member 100 with a groove 102 capable of accommodating the steering gear 330 and the transmission member 340, the steering gear 330, the transmission member 340, and the connecting cable in the fin 10 can be hidden in the airfoil of the fin 10 so that The wind resistance generated by these components is further reduced, and the flying efficiency and speed of the fixed-wing UAV are improved.

With continued reference to FIGS. 1 to 7, the first mounting member 310 and the steering gear connecting member 320 may be of any suitable structure, for example, they may be solid or hollow rod members, such as plastic rod members or metal rod members. In some examples, in order to improve the connection strength between the foamed material and the rod, a plurality of holes can also be opened in the rod, so that the foamed material can be filled into the holes of the rod, so that the two are closely connected together. It can be understood that when the rod member has a hollow structure, by opening a hole in the hollow rod, the foamed material can enter the interior of the hollow rod from the hole, thereby further improving the connection strength between the foamed material and the rod.

Optionally, as shown in FIG. 2, FIG. 4, FIG. 6, and FIG. 7, the first mounting member 310 includes a first support beam 311 and a connection portion 312, and the connection portion 312 is fixed to the left end of the first support beam 311. For example, in some examples, the first support beam 311 may be a hollow or solid rod member, and a plurality of holes 3111 are provided in the rod member.

The connecting portion 312 may include a plate-shaped body 3121, a sleeve 3122 formed at the right end of the plate-shaped body 3121, and a block structure 3123 formed at the left end of the plate-shaped body 3121. The left end of the rod-shaped first support beam 311 is inserted into the sleeve 3122 so as to be fixed to the connection portion 312. A chute 3124 for connecting with the fuselage is formed between the block structure 3123 and the plate-shaped main body 3121, and an electrical connection area 3125 is formed on the left side of the block structure 3123 for installing an electrical connection interface with the fuselage. The electrical connection interface may be one of a plug and a spring probe. It is easy to understand that when the first mounting member 310 of the tail wing 10 is formed with a sliding groove 3124, a slider is correspondingly provided on the fuselage of the fixed-wing drone so as to cooperate with the sliding groove 3124, thereby realizing the rapidity of the tail wing 10. Disassembly. Similarly, an electrical mating portion, such as a plug or a contact, is formed on the fuselage correspondingly to the electrical connection interface installed on the first mounting member 310.

Of course, although it has been described above that the tail wing 10 is detachably and electrically connected to the fuselage by designing the chute 3124 and the electrical connection area 3125 on the connection portion 312, this embodiment does not exclude the chute 3124 and the electrical connection area 3125 other design forms. For example, instead of providing a block structure, a slide groove 3124 and an electrical connection area 3125 may be provided directly on the plate-shaped body 3121. Similarly, in this embodiment, the fixing of the first supporting beam 311 and the connecting portion 312 may not be performed by the sleeve 3122 but by other structures, such as bonding, screwing, and the like.

Optionally, in order to further strengthen the structural strength of the first mounting member 310, the first mounting member 310 may further include a second supporting beam 313, and the second supporting beam 313 is spaced from the first supporting beam 311, specifically, , The second support beam 313 is arranged in parallel above the first support beam 311. It can be understood that the fixing of the second support beam 313 and the connecting portion 312 can also be achieved by forming a sleeve 3122 on the connecting portion 312, and of course, it can also be achieved by other fixing methods, such as bonding or screwing.

Similar to the first support beam 311, the second support beam 313 in this embodiment may also be a solid or hollow rod, and a plurality of holes 3131 may also be formed in it. It is easy to understand that both the first support beam 311 and the second support beam 313 may be perforated, or only one of them may be perforated.

In addition, when the first support beam 311 and the second support beam 313 are members, the length, diameter, and material of the two can be designed according to actual needs. For example, FIG. 2, FIG. 4 to FIG. 7 show the second support. The diameter of the beam 313 is larger than that of the first supporting beam 311, and the length of the second supporting beam 313 is smaller than the specific example of the first supporting beam 311.

With continued reference to FIG. 6 and FIG. 7, in this embodiment, the shape and structure of the first portion 314 protruding from the opening of the first mounting member 310 are not specifically limited, and those skilled in the art can make specific designs according to actual needs. For example, in some examples, the first portion 314 may be a single piece, such as a plastic piece. The plastic part is fixed at the right end of the first mounting part 310, so that the foamed material can partially cover the first part 314, so as to improve the connection strength between the first part 314 and other parts of the first mounting part 310. For example, as shown in FIG. 7, in some examples, the first portion 314 includes a plate 3141 and a sleeve 3142 on the top of the plate 3141 for fixing to the right end of the first support beam 311. A rib 3143 is optionally provided between the plate 3141 and the sleeve 3142.

Optionally, as shown in FIG. 7, a shaft hole 3144 is defined in the first portion 314 of the first mounting member 310. Taking the above plate 3141 as an example, the above-mentioned shaft hole 3144 can be opened at the bottom end of the plate 3141, and the right end of the steering gear connecting member 320 is penetrated in the shaft hole 3144, so that the steering gear connecting member 320 drives the steering rudder 200 to face each other. For the purpose of rotating the fixing member 100. Optionally, a bearing 324 is installed in the shaft hole 3144, and the right end of the steering gear connecting member 320 is carried on the bearing 324.

With continued reference to FIGS. 6 and 7, similar to the first portion 314, the second portion 315 formed at the left end of the first mounting member 310 may also be a structure integrally formed with the first mounting member 310, or may be a separate part, for example, it may be A separate plastic piece.

For example, as shown in FIG. 7, the second portion 315 may include a plate-like structure 3151 and a block-like structure 3152 on top of the plate-like structure 3151. A through hole is provided in the block structure 3152. The sleeve 3122 of the connecting portion 312 is inserted and fixed at the left end of the through hole, and the left end of the first support beam 311 is inserted and fixed at the right end of the through hole, so that the first The support beam 311 is indirectly fixed to the connection portion 312 through the second portion 315.

Optionally, a support base 3153 fixed to the plate-like structure 3151 is formed below the block-like structure 3152, and the steering gear 330 is fixed between the support base 3153 and the block-like structure 3152 by fasteners (for example, bolts 343). .

Alternatively, in order to improve the stability when the steering rudder 200 rotates relative to the fixing member 100, a bearing hole 3154 is formed in the second portion 315. Taking FIG. 7 as an example, the above-mentioned bearing hole 3154 is formed at the bottom end of the plate-like structure 3151. A bearing 324 can be installed in the bearing hole 3154, so that the left end of the steering gear connector 320 passes through the bearing 3154 and is received in the groove 102. When the inner transmission member 340 is fixed, it can be carried on a bearing 324 installed in the bearing hole 3154. Of course, this embodiment does not limit that a bearing 324 must be installed in the bearing hole 3154.

As shown in FIG. 6 and FIG. 7, the steering gear 330 in this embodiment may be any steering gear 330 in the prior art. Similarly, the transmission member 340 may be any transmission member in the prior art, such as a connecting rod. mechanism.

Specifically, as shown in FIGS. 6 to 9, in some embodiments, the transmission member 340 may include a rudder arm 341 and a rudder angle 342, an upper end of the rudder arm 341 is fixed to an output shaft of the steering gear 330, and a lower end of the rudder arm 341 An elongated opening 3411 is formed to cooperate with the upper end of the rudder angle 342, and the lower end of the rudder angle 342 is fixed to the left end of the steering gear connection 320.

For example, FIG. 7 and FIG. 8 show an alternative structure of the rudder arm 341, which includes a plate-shaped main body 3421, and an output shaft for covering the steering gear 330 is formed on the top of the plate-shaped main body 3421. The upper sleeve can fix the sleeve and the output shaft of the servo 330 together by bolts 343. A lower end 3411 of the plate-shaped body 3421 is provided with a strip-shaped opening extending along the length of the plate-shaped body.

An optional, substantially zigzag-shaped rudder angle 342 is shown in FIGS. 7 and 9, which includes a plate-shaped main body 3421 provided at the upper left end of the plate-shaped body 3421 and used to communicate with the rudder angle 342. A column 3422 fitted with the elongated opening 3411 and a fitting portion 3423 provided at the lower right end of the plate-shaped body 3421 and used to fix the steering gear connector 320. In order to cooperate with the steering gear connecting member 320, a fixing hole 3424 can be formed in the matching portion 3423, so that the left end of the steering gear connecting member 320 can pass through and be fixed in the fixing hole 3424.

Alternatively, when assembling the rudder angle 342 and the rudder arm 341, a shaft sleeve 344 may be sleeved on the cylinder of the rudder angle 342.

In some other embodiments, the transmission member 340 may also include a steering wheel and a connecting rod, the steering wheel is fixed to the output shaft of the steering gear 330, the upper end of the connecting rod is fixed to the steering wheel, and the lower end thereof is further connected to the left end of the steering gear connecting member 320. fixed. It should be noted that the connecting rod for connecting the steering wheel and the steering gear connecting member 320 is not necessarily a rod member, and it may also be a plate-shaped member or a block-shaped member.

Referring to FIG. 6, FIG. 7 and FIG. 10, the steering gear connector 320 of this embodiment may include a rotation shaft 321 and a connection shaft 322. Among them, the rotating shaft 321 is embedded in the steering rudder 200, and the right end thereof is inserted into the shaft hole 3144 of the first part 314 to be rotatably connected with the fixing member 100. The left end thereof protrudes from the left side of the steering rudder 200 and the right end of the connecting shaft 322. It is fixed, and the left end of the connecting shaft 322 is fixed to the transmission member 340, for example, to the engaging portion 3423 of the rudder angle 342.

Optionally, similar to the first support beam 311, a plurality of holes 3211 may be provided in the rotating shaft 321, so as to improve the connection strength between the rotating shaft 321 and the foamed material.

In some optional embodiments, the left end of the connecting shaft 322 may pass through the bearing hole 3154 of the second portion 315 of the first mounting member 310 to be fixed to the transmission member 340. For example, the left end of the connecting shaft 322 passes through the bearing hole 3154 and penetrates into the fixing hole 3424 of the rudder angle 342, and is fixed to the rudder angle 342. The following rudder angles shown in FIG. 7 and FIG. 9 are taken as examples to introduce some optional structures for connecting the shaft 322 and the transmission member 340 in detail.

7 and 9, the mating portion 3423 at the lower right end of the plate-shaped body 3421 is formed in a sleeve shape, and the fixing hole 3424 is formed in the sleeve. One or more convex edges 3425 are also formed in the fixing hole 3424. In order to cooperate with the above-mentioned convex edge, as shown in FIG. 10, the connecting shaft 322 is formed with one or more engaging grooves 3224 on the side wall at the left end thereof to cooperate with the convex edge 3425.

For example, in some examples, two, three, or four convex edges 3425 may be formed in the fixing hole 3424 as shown in FIG. 9. Accordingly, two are formed uniformly along the circumferential direction of the connecting shaft 322. , Three or four card slots 3224.

By providing the above-mentioned protruding edge 3425 and the slot 3224, when the left end of the connecting shaft 322 is to be installed in the fixing hole 3424 of the rudder angle 342, the slot 3224 at the left end of the connecting shaft 322 can be aligned with the protruding edge 3425 in the fixing hole 3424. Then, inserting the connecting shaft 322 into the fixing hole 3424 can conveniently prevent the transmission member 340 and the connecting shaft 322 from rotating in the circumferential direction of the connecting shaft 322.

Further, with continued reference to FIG. 9, in order to prevent the connecting shaft 322 from moving axially in the fixing hole 3424 of the rudder angle 342, a rib 3426 for blocking the left end surface of the connecting shaft 322 may also be formed in the fixing hole 3424. Of course, as shown in FIG. 9, the above-mentioned rib 3426 may be a plurality of protruding portions provided along the circumferential direction of the fixing hole 3424. For example, FIG. 9 shows two protrusions provided between two adjacent convex edges 3425.

It is easy to understand that although the above has avoided the rotation of the connecting shaft 322 by forming the convex edge 3425 in the fixing hole 3424 and the latching groove 3224 at the left end of the connecting shaft 322, in some other embodiments, in order to prevent the connecting shaft 322 rotates in the fixing hole 3424, and other structural forms can also be adopted. For example, a protrusion can be formed on the side wall of the connecting shaft 322, and a locking groove 3224 can be formed in the fixing hole 3424, so that when the protrusion of the connecting shaft 322 is inserted into the locking groove 3224 in the fixing hole 3424, the two can be avoided. Turn the connection. Of course, if a slot 3224 is formed in the fixing hole 3424, the rib 3426 for resisting the left end surface of the connecting shaft 322 may be a plurality of protrusions uniformly disposed in the fixing hole 3424, or may be a ring or a disc shape. structure.

Further, as shown in FIG. 7 and FIG. 11, the steering gear connecting member 320 may optionally further include an adapter 323. The left end of the adapter 323 is fixed to the right end of the connecting shaft 322, and the right end of the adapter 323 is connected to the shaft 321. The left end is fixed. Specifically, the adaptor 323 may be an adaptor 323 of any shape or structure. For example, it may be a shell-type structure. The left end of the adaptor 323 is a large-diameter end 3231 that matches the outer diameter of the connecting shaft 322 so as to fit over the connecting shaft 322. On the right end, the right end may be a small-diameter end 3232 that matches the inner diameter of the rotating shaft 321 so as to be inserted and fixed in a mounting hole opened at the left end of the rotating shaft 321. In some examples, the rotating shaft 321 can be designed as a hollow shaft, so that the right end of the adapter 323 can be inserted into the rotating shaft 321. In addition, the adapter 323 may be bonded or an interference fit to achieve fixing with the rotation shaft 321. By providing the adapter 323, the fixing of the connecting shaft 322 and the rotating shaft 321 can be facilitated. Especially when the diameters of the rotating shaft 321 and the connecting shaft 322 are greatly different, the adapter 323 can easily fix the two together.

Alternatively, the right end of the adapter 323 and the connecting shaft 322 may be fixed by screwing, bonding, or interference fit. For example, in some examples, a mating threaded hole may be formed inside the connecting shaft 322 and the adapter 323 so as to fix the two together by threads. Specifically, the inner wall of the right end of the connecting shaft 322 is formed with an internal thread. Correspondingly, the left end of the adapter 323 is formed with a cavity matching the shape of the right end of the connecting shaft 322, and the inner wall of the right end of the adapter 323 is also formed. With internal threads, the bolt 343 is screwed from the threaded hole of the connection shaft 322 into the threaded hole of the adapter 323, and the connection between the two can be achieved. The thread is located inside the connection shaft 322 and the adapter 323, and will not affect the steering gear connection 320. Appearance.

Referring to FIGS. 7 and 10, in order to prevent the adapter 323 from sliding axially, in some embodiments, the left end of the connecting shaft 322 is formed as a large diameter end 3221 and the right end is formed as a small diameter end 3222. The left end of the adapter 323 is sleeved on the small diameter end 3222 of the connecting shaft 322, and the right end of the adapter 323 is inserted into the left end of the rotating shaft 321, so that the left end of the adapter 323 is pressed against the large diameter end 3221 of the connecting shaft 322 and the small diameter end 3222. Between the step surface and the right end surface of the rotation shaft 321.

With continued reference to FIGS. 7 and 10, in order to prevent the bearing 324 installed in the bearing hole 3154 of the second portion 315 from sliding in the axial direction, a retaining ring 3223 can also be formed on the left end of the connecting shaft 322 so that the left end of the bearing abuts Connected to the stop ring 3223, the right end of the bearing is abutted against the left end surface of the adapter 323, so that the bearing is sandwiched between the stop ring 3223 and the left end surface of the adapter 323.

Finally, it should be noted that the above implementations are only used to describe the technical solutions of the embodiments of the present invention, and are not intended to limit them. Although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, the ordinary techniques in the art Personnel should understand that they can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions from the embodiments of the present invention. The scope of the technical solution.

Claims

A tail wing, which is characterized by comprising: a fixed part, a steering rudder, a first mounting part, a steering gear connecting part, a transmission part, and a steering gear;

The fixing member is formed with an opening for receiving the steering rudder;

The first mounting member is embedded in the fixing member, a first end of the first mounting member is fixed to the steering gear, and a second end of the first mounting member is provided with a protrusion protruding from the opening The first part of

A first end of the transmission member is drivingly connected with the steering gear;

The middle part of the steering gear connector is embedded in the steering rudder, and the first end of the steering gear connector is fixed to the second end of the transmission member, and the second end of the steering gear connector Rotatably connected with the first part.
The rear wing according to claim 1, wherein a groove is formed on a side of the fixing member, and a first end of the first mounting member has a second portion protruding from the groove;

The steering gear and the transmission member are accommodated in the groove;

The steering gear is fixed to the second part.
The rear wing according to claim 2, wherein the steering gear connecting member includes a rotating shaft and a connecting shaft, the rotating shaft is embedded in the steering rudder, and a first end of the rotating shaft passes through the connecting shaft. It is fixed to the second end of the transmission member, and the first end of the rotating shaft is rotatably connected to the first part of the steering gear connecting member.
The rear wing according to claim 3, wherein the steering gear connecting member further comprises: an adapter, the first end of the adapter is fixed to the second end of the connecting shaft, and the first The two ends are fixed to the first end of the rotating shaft.
The rear wing according to claim 4, wherein a mounting hole is formed at a first end of the rotating shaft, and a second end of the adapter is passed through and fixed in the mounting hole.
The rear wing according to claim 5, wherein the rotating shaft is a hollow shaft.
The rear wing according to claim 5, wherein the adapter and the shaft are adhesively fixed or interference-fitted.
The rear wing according to claim 4, wherein the second end of the connecting shaft is screwed with the first end of the adapter.
The rear wing according to claim 4, wherein said connecting shaft passes through a second portion of said first mounting member.
The rear wing according to claim 9, wherein the steering gear connecting member further comprises a bearing, and the bearing passes through a bearing hole opened in the second part of the first mounting member, and the bearing A first end abuts on a retaining ring formed by the connecting shaft, and a second end abuts on an end surface of the first end of the adapter.
The rear wing according to any one of claims 3 to 10, wherein at least one clamping groove is formed on a side wall of a first end of the connecting shaft, and a second end of the transmission member is used for mounting the At least one convex edge is formed in the fixing hole at the first end of the connecting shaft to cooperate with at least one of the clamping grooves.
The rear wing according to claim 11, wherein a retaining edge for abutting an end surface of the first end of the connecting shaft is further formed in the fixing hole of the transmission member.
The rear wing according to any one of claims 3 to 10, wherein a plurality of holes are formed in the rotating shaft.
The rear wing according to any one of claims 3 to 10, wherein the first mounting member comprises: a first support beam and a connection portion; the connection portion is fixed to the first support beam and is connected to the first support beam; The steering gear is on the same side; the connecting portion is formed with a chute and an electrical connection interface for connecting with the fuselage.
The rear wing according to claim 14, wherein the first mounting member further comprises: a second supporting beam, the second supporting beam is spaced from the first supporting beam, and the connecting portion is spaced apart from the first supporting beam, respectively. The first support beam and the second support beam are fixed.
The rear wing according to claim 15, wherein a plurality of holes are formed in the first support beam and / or the second support beam.
The rear wing according to claim 14, wherein the second part and the first part of the steering gear connecting member are two plastic parts fixed to the first end and the second end of the first support beam.
The rear wing according to claim 14, wherein the electrical connection interface is one of a plug and a spring probe.
The rear wing according to any one of claims 1 to 10, wherein an arc-shaped depression is formed inward at the upper end of the opening, and the steering rudder is formed with an arc-shaped protrusion that cooperates with the arc-shaped depression.
The rear wing according to any one of claims 1 to 10, wherein the transmission member includes a rudder arm and a rudder angle, and a first end of the rudder arm is fixed to an output shaft of the steering gear, and The second end of the rudder arm is provided with an oblong hole that cooperates with the first end of the rudder angle, and the second end of the rudder angle is fixed to the first end of the steering gear connecting piece.
The rear wing according to any one of claims 1 to 10, wherein the transmission member includes: a steering wheel and a connecting rod, the steering wheel is fixed to an output shaft of the steering gear, and the first One end is fixed to the steering wheel, and the second end of the link is fixed to the first end of the steering gear connector.
A fixed-wing unmanned aerial vehicle is characterized in that it includes a fuselage and a tail, and the tail includes:

Fixings, steering rudders, first mounting parts, steering gear connection parts, transmission parts and steering gears;

The fixing member is formed with an opening for receiving the steering rudder;

The first mounting member is embedded in the fixing member, a first end of the first mounting member is fixed to the steering gear, and a second end of the first mounting member is provided with a protrusion protruding from the opening The first part of

A first end of the transmission member is drivingly connected with the steering gear;

The middle part of the steering gear connector is embedded in the steering rudder, and the first end of the steering gear connector is fixed to the second end of the transmission member, and the second end of the steering gear connector Rotatably connected with the first part.
The fixed-wing drone according to claim 22, wherein a groove is formed on a side of the fixing member, and a first end of the first mounting member has a second portion protruding from the groove. ;

The steering gear and the transmission member are accommodated in the groove;

The steering gear is fixed to the second part.
The fixed-wing drone according to claim 23, wherein the steering gear connecting member comprises: a rotating shaft and a connecting shaft, the rotating shaft is embedded in the steering rudder, and the first end of the rotating shaft passes through The connecting shaft is fixed to the second end of the transmission member, and the first end of the rotating shaft is rotatably connected to the first portion of the steering gear connecting member.
The fixed-wing drone according to claim 24, wherein the steering gear connector further comprises: an adapter, wherein a first end of the adapter is fixed to a second end of the connecting shaft, and The second end of the adapter is fixed to the first end of the rotating shaft.
The fixed-wing drone according to claim 25, wherein a mounting hole is formed at a first end of the rotating shaft, and a second end of the adapter is passed through and fixed in the mounting hole.
The fixed-wing drone according to claim 26, wherein the rotating shaft is a hollow shaft.
The fixed-wing drone according to claim 26, wherein the adapter and the shaft are adhesively fixed or interference fit.
The fixed-wing drone according to claim 25, wherein the second end of the connection shaft is screwed to the first end of the adapter.
The fixed-wing drone according to claim 25, wherein the connecting shaft passes through the second portion of the first mounting member.
The fixed-wing drone according to claim 30, wherein the steering gear connecting member further comprises a bearing penetrating through a bearing hole opened in the second part of the first mounting member, And a first end of the bearing abuts on a retaining ring formed by the connecting shaft, and a second end thereof abuts on an end surface of the first end of the adapter.
The fixed-wing drone according to any one of claims 24 to 31, wherein at least one slot is formed on a side wall of a first end of the connecting shaft, and a second end of the transmission member is used for At least one convex edge matching with at least one of the latching grooves is formed in a fixing hole at a first end of the connecting shaft.
The fixed-wing unmanned aerial vehicle according to claim 32, wherein a rib for blocking an end surface of the first end of the connecting shaft is further formed in the fixing hole of the transmission member.
The rear wing according to any one of claims 24 to 31, wherein a plurality of holes are formed in the rotating shaft.
The fixed-wing drone according to any one of claims 24 to 31, wherein the first mounting member comprises: a first supporting beam and a connecting portion; the connecting portion is fixed to the first supporting beam And the same side as the steering gear; the connecting portion is formed with a chute and an electrical connection interface for connecting with the fuselage.
The fixed-wing drone according to claim 35, wherein the first mounting member further comprises: a second support beam, the second support beam is spaced from the first support beam, and the connection The parts are respectively fixed to the first support beam and the second support beam.
The fixed-wing drone according to claim 36, wherein the first support beam and / or the second support beam are provided with a plurality of holes.
The fixed-wing drone according to claim 35, wherein the second part and the first part of the steering gear connecting member are two plastics fixed to the first end and the second end of the first support beam Pieces.
The fixed-wing drone according to claim 35, wherein the electrical connection interface is one of a plug and a spring probe.
The fixed-wing drone according to any one of claims 22 to 31, wherein an arc-shaped depression is formed inward at the upper end of the opening, and the steering rudder is formed with an arc that cooperates with the arc-shaped depression. Shaped raised.
The fixed-wing drone according to any one of claims 22 to 31, wherein the transmission member includes: a rudder arm and a rudder angle, and a first end of the rudder arm and an output shaft of the rudder For fixing, the second end of the rudder arm is provided with an oblong hole that cooperates with the first end of the rudder angle, and the second end of the rudder angle is fixed to the first end of the connecting piece of the steering gear.
The fixed-wing drone according to any one of claims 22 to 31, wherein the transmission member includes: a steering wheel and a connecting rod, the steering wheel is fixed to an output shaft of the steering gear, and The first end of the connecting rod is fixed to the steering wheel, and the second end of the connecting rod is fixed to the first end of the steering gear connecting member.
The fixed-wing drone according to any one of claims 22 to 42, wherein the fuselage is provided with a slider for cooperation with a chute provided on the first mounting member of the tail wing.