CN213414217U - Unmanned aerial vehicle turns to tail-rotor - Google Patents

Abstract

The utility model relates to an unmanned aerial vehicle turns to tail rotor belongs to unmanned air vehicle technical field, corresponds an engine or motor to every rotor for unmanned aerial vehicle weight is great itself, and the problem that the load capacity is weak provides following technical scheme, and the technical essential of this application includes that a power tail rotor and drive power tail rotor pivoted power supply and cover locate the outside casing of power supply, the power tail rotor sets up in unmanned aerial vehicle's end, unmanned aerial vehicle is provided with the upset subassembly that can drive the upset of power tail rotor, the upset subassembly includes steering wheel and roll-over stand, the one end and the steering wheel of roll-over stand are connected, the other end and power supply fixed connection, steering wheel output shaft and unmanned aerial vehicle's flight direction set up perpendicularly. This application has the weight that reduces unmanned aerial vehicle, improves unmanned aerial vehicle's load capacity's advantage.

Description

Unmanned aerial vehicle turns to tail-rotor

Technical Field

The application relates to the technical field of unmanned aerial vehicles, in particular to unmanned aerial vehicle steering tail rotor.

Background

The unmanned aerial vehicle is an unmanned aerial vehicle operated by a radio remote control device and a self-contained program control device. At present, unmanned aerial vehicles are widely applied to the fields of meteorology, agriculture, exploration, photography, disaster prevention and reduction, crop yield estimation, drug and personal arrest, border patrol, public security and counter terrorism and the like.

The existing unmanned aerial vehicle is provided with a plurality of rotors through setting up a plurality of rotors, and the rotor is driven by an engine or a motor to provide lift force, so that the unmanned aerial vehicle is pulled to the air, the unmanned aerial vehicle does not vertically take off in a short distance and is close to the limited field condition, and meanwhile, the unmanned aerial vehicle has the ultrastrong maneuvering performance of the fixed-wing aircraft in the air for changing the posture.

In the correlation technique, every rotor of unmanned aerial vehicle is controlled by its engine or the motor that corresponds respectively, and the controller can realize unmanned aerial vehicle flight state through the lift etc. of working to every rotor, and quick correspondence needs be made in the aspect of the lift to every rotor according to flight signal's control, because every rotor corresponds an engine or motor for unmanned aerial vehicle weight is great itself, and unmanned aerial vehicle load capacity then weakens to some extent relatively.

SUMMERY OF THE UTILITY MODEL

In order to reduce unmanned aerial vehicle's weight, improve unmanned aerial vehicle's load capacity, this application provides unmanned aerial vehicle and turns to the tail rotor, adopts following technological means:

the utility model provides an unmanned aerial vehicle turns to tail-rotor, locates the outside casing of power supply including a power tail-rotor and drive power tail-rotor pivoted power supply and cover, the power tail-rotor sets up in unmanned aerial vehicle's end, unmanned aerial vehicle is provided with the upset subassembly that can drive the upset of power tail-rotor, the upset subassembly includes steering wheel and roll-over stand, the one end and the steering wheel of roll-over stand are connected, the other end and power supply fixed connection, steering wheel output shaft and unmanned aerial vehicle's flight direction set up perpendicularly.

Through adopting above-mentioned technical scheme, it rotates to drive the power tail rotor through the power supply, the power tail rotor rotates and can provide power for unmanned aerial vehicle, start the steering wheel, steering wheel drive roll-over stand rotates, because the one end and the power supply connection of steering wheel are kept away from to the roll-over stand, realize the synchronous rotation of power supply and roll-over stand, and then realize the upset drive to the power tail rotor, the rotation angle of adjusting the power tail rotor through the steering wheel, the realization can provide the power of equidirectional for unmanned aerial vehicle to the angle modulation of power tail rotor, the realization can realize the control to unmanned aerial vehicle flight state only through setting up a steering wheel and a power tail rotor to the regulation of unmanned aerial vehicle flight state, reduce unmanned aerial vehicle's weight, improve.

Optionally, the roll-over stand includes the connecting plate, the connecting plate is two, and two connecting plates set up relatively, and one of them connecting plate rotates with the output shaft synchronization of steering wheel, and another connecting plate rotates with the steering wheel and is connected.

Through adopting above-mentioned technical scheme, through setting up the connecting plate, realize pressing from both sides tightly the steering wheel, the rotational stability of roll-over stand.

Optionally, a rotating hole is formed in one end, close to the steering engine, of the connecting plate, a blocking piece is fixedly arranged after an output shaft of the steering engine penetrates through the rotating hole, the blocking piece is fixedly connected with the connecting plate, the steering engine is provided with a driven shaft, and the driven shaft penetrates through a rotating hole of another connecting plate and is rotatably connected with the rotating hole.

By adopting the technical scheme, the steering engine is started, the steering engine drives the connecting plate close to one side of the output shaft of the steering engine to rotate, the connecting plate on the other side rotates through the driven shaft and the steering engine, and synchronous rotation driving of the two connecting plates is realized.

Optionally, the output end of the steering engine is provided with a gear, the separation blade is correspondingly provided with a tooth slot, and the gear is meshed with the tooth slot.

By adopting the technical scheme, the connection between the steering engine and the connecting plate is convenient to realize, and the connecting plate is convenient to drive to rotate.

Optionally, the unmanned aerial vehicle shell is provided with a guide groove, the guide groove is arranged along the flight direction of the unmanned aerial vehicle, the steering engine is provided with a limiting part, one end of the limiting part, which is far away from the steering engine, is inserted into the guide groove, and the limiting part is connected with the guide groove in a sliding manner.

Through adopting above-mentioned technical scheme, realize the upset restriction to the power tail-rotor, the in-process of power tail-rotor at the upset, the locating part can slide along the guide way, under the limiting action of guide way, can prevent that the power supply from taking place to rock under the rotation of power tail-rotor.

Optionally, one side of the limiting part facing the steering engine is provided with a cambered surface.

Through adopting above-mentioned technical scheme for the upset of power tail-rotor is not hindered in the setting of steering wheel.

Optionally, one side of the guide groove far away from the power tail rotor is provided with a positioning block.

Through adopting above-mentioned technical scheme, through the rotation angle of locating piece restriction power tail-rotor, when locating piece and locating part butt, unmanned aerial vehicle can follow the straight line flight.

Optionally, the guide way has been seted up in the one side that is close to the power tail-rotor and has been stepped down the groove, and when locating piece and locating piece butt, the one end that the locating piece is close to the power tail-rotor is pegged graft in the inside of the groove of stepping down.

Through adopting above-mentioned technical scheme, restrict the motion of locating part respectively from the both sides of locating part, further realize the rotation angle restriction to power tail-rotor.

Optionally, the casing rotates with the unmanned aerial vehicle shell to be connected, unmanned aerial vehicle is provided with the wobbling adjusting part of drive power tail rotor.

Through adopting above-mentioned technical scheme, through adjusting part control power tail-rotor swing angle, realize adjusting the flight of unmanned aerial vehicle multi-angle, improve unmanned aerial vehicle's flight performance.

Optionally, the adjusting assembly includes a driving gear disposed on the housing of the unmanned aerial vehicle, an annular gear disposed on the housing, and a stepping motor for driving the driving gear to rotate, and the driving gear is engaged with the annular gear.

Through adopting above-mentioned technical scheme, start step motor, step motor drives the driving gear and rotates, because driving gear and annular tooth meshing realize the rotation drive to the annular tooth, the annular tooth can drive the synchronous rotation of casing, through the corotation and the upset of control step motor, realizes the swing of power tail-rotor.

In summary, the present application has the following beneficial effects:

the unmanned aerial vehicle control system comprises a power source, a power tail rotor, a steering engine, a power tail rotor, a power transmission device, a control device and a control system, wherein the power tail rotor is driven by the power source to rotate, the power tail rotor rotates to provide power for the unmanned aerial vehicle, the steering engine is used for adjusting the turning angle of the power tail rotor, so that power in different directions can be provided for the unmanned aerial vehicle, the control on the flight state of;

secondly, through the mutual matching of the limiting part and the guide groove, the power source can be prevented from shaking under the rotating action of the power tail rotor, and the stability of the unmanned aerial vehicle in the flying process is improved;

and thirdly, the power tail rotor is controlled to swing through the stepping motor, so that the multi-angle flight adjustment of the unmanned aerial vehicle is realized, and the flight performance of the unmanned aerial vehicle is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of a steering tail rotor of an unmanned aerial vehicle according to an embodiment of the present application;

fig. 2 is a bottom view of an unmanned aerial vehicle steering tail rotor of an embodiment of the present application;

fig. 3 is a partial exploded view of an unmanned aerial vehicle steering tail rotor of an embodiment of the present application;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic view of the overall structure of the unmanned aerial vehicle after the steering tail rotor of the unmanned aerial vehicle turns over the angle;

FIG. 6 is a schematic view of a connection relationship among a steering engine, a roll-over stand and a limiting member according to an embodiment of the present disclosure;

fig. 7 is a partial exploded view of fig. 6.

In the figure, 1, an unmanned aerial vehicle; 11. a fixed seat; 12. a guide groove; 121. positioning blocks; 13. a rotation chamber; 21. a power tail rotor; 22. a power source; 23. a housing; 231. a rotating ring; 232. a mounting seat; 3. an adjustment assembly; 31. a stepping motor; 32. a driving gear; 33. an annular tooth; 4. a turnover assembly; 41. a steering engine; 411. a gear; 42. a roll-over stand; 421. a connecting plate; 422. a transverse plate; 43. a driven shaft; 5. a baffle plate; 51. a fixing hole; 6. a limiting member; 61. an extension portion; 611. a cambered surface; 62. a horizontal portion.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Combine figure 1 and figure 2, for the unmanned aerial vehicle that this application discloses turns to tail rotor, locate power supply 22 outside casing 23 including installing in the terminal power tail rotor 21 of unmanned aerial vehicle 1 and drive power tail rotor 21 pivoted power supply 22 and cover, casing 23 and unmanned aerial vehicle 1 shell are in same smooth curved surface for casing 23 does not hinder unmanned aerial vehicle 1's flight.

With reference to fig. 3 and 4, the housing 23 is provided with a cavity with two open ends, and the housing 23 is rotatably connected to the drone 1. The drone 1 is provided with an adjustment assembly 3 that drives the housing 23 in rotation. The adjustment assembly 3 comprises a stepper motor 31, a driving gear 32 and an annular gear 33.

Combine fig. 3 and fig. 4, unmanned aerial vehicle 1's inside fixed mounting has fixing base 11, and fixing base 11 is the level setting, and step motor 31 fixed mounting is in the upper surface of fixing base 11, and step motor 31's output is the level setting, and step motor 31's output is close to one side extension of casing 23 mutually, and driving gear 32 and step motor 31 output coaxial rotation.

Combine fig. 2 and fig. 4, casing 23 has the swivel 231 towards one side of unmanned aerial vehicle 1 along its length direction extension, and unmanned aerial vehicle 1 shell corresponds and has seted up and supply swivel 231 male rotation chamber 13, and swivel 231 pegs graft in the inside of rotating chamber 13. Annular tooth 33 is a plurality of, a plurality of annular teeth 33 set up along the equidistant setting of internal perisporium of swivel 231, enclose between the adjacent annular tooth 33 and enclose into the recess that supplies driving gear 32 tooth male, make annular tooth 33 and driving gear 32 mesh, start step motor 31, step motor 31 drives driving gear 32 coaxial rotation, because annular tooth 33 and driving gear 32 mesh, realize annular tooth 33's rotation, annular tooth 33 drives casing 23 synchronous motion, the realization is adjusted the rotation of casing 23.

Referring to fig. 2 and 5, a turning assembly 4 capable of driving the power tail rotor 21 to rotate within a range of 90-180 degrees is arranged inside the housing 23, and the turning assembly 4 comprises a steering engine 41 and a turning frame 42. The lower side wall of the shell 23 is correspondingly provided with an abdicating space for the power tail rotor 21 to turn.

With reference to fig. 2 and 6, a mounting seat 232 is fixedly mounted inside the housing 23, the mounting seat 232 is horizontally arranged on one side close to the lower side wall of the housing 23, a steering engine 41 is fixedly mounted on the upper surface of the mounting seat 232, an output shaft of the steering engine 41 and an output shaft of the stepping motor 31 are vertically arranged, and when the power tail rotor 21 is in a horizontal state, an output shaft of the steering engine 41 and a flight direction of the unmanned aerial vehicle 1 are vertically arranged.

Referring to fig. 2 and 6, one end of the roll-over stand 42 is connected with the steering gear 41, the other end of the roll-over stand is fixedly connected with the power tail rotor 21, the steering gear 41 is started, and the steering gear 41 can drive the roll-over stand 42 to rotate around an output shaft of the steering gear 41, so that the power tail rotor 21 is driven to roll over.

With reference to fig. 2 and 6, the roll-over stand 42 includes two parallel and opposite connecting plates 421 and a horizontal plate 422 capable of connecting the two connecting plates 421, the horizontal plate 422 and the two connecting plates 421 form a U-shaped structure, and the open end of the U-shaped structure faces the steering engine 41. The connecting plates 421 and the output shafts of the steering gears 41 are vertically arranged, the two connecting plates 421 are respectively arranged on the left and right sides of the steering gears 41, one of the connecting plates 421 and the output shaft of the steering gear 41 synchronously rotate, and the other connecting plate 421 and the steering gear 41 are rotationally connected through the driven shaft 43.

Combine fig. 6 and fig. 7, the rotation hole has been seted up to connecting plate 421, steering wheel 41's output is provided with separation blade 5, separation blade 5 and connecting plate 421 parallel arrangement, connecting plate 421 sets up between separation blade 5 and steering wheel 41, fixed orifices 51 have been seted up to separation blade 5, rotation hole center and fixed orifices 51 center are in a straight line, the aperture in rotation hole is greater than the aperture of fixed orifices 51, peg graft in the inside of fixed orifices 51 behind the rotation hole of steering wheel 41 output shaft one side connecting plate 421, the output end key connection who is located steering wheel 41 of fixed orifices 51 inside has gear 411, separation blade 5 offers confession gear 411 tooth male tooth's socket in the internal perisporium correspondence of fixed orifices 51, gear 411 and tooth's socket meshing, make separation blade 5 can rotate with steering wheel 41 is coaxial. The blocking piece 5 is fixedly connected with the connecting plate 421 through a positioning bolt, so that the blocking piece 5 can drive the connecting plate 421 to synchronously rotate.

With reference to fig. 2 and 7, the axis of the driven shaft 43 coincides with the axis of the output shaft of the steering engine 41, the output shafts of the driven shaft 43 and the steering engine 41 are arranged in a back-to-back manner, one end of the driven shaft 43 is fixedly connected with the steering engine 41, the other end of the driven shaft 43 penetrates through a rotating hole of a connecting plate 421 close to one side of the driven shaft 43 and is rotatably connected with the shell 23, the driven shaft 43 is rotatably connected with the rotating hole, and the clamping state of the two connecting plates 421 on the steering engine 41 can be kept under the action of the transverse.

Referring to fig. 5 and 7, the limiting member 6 is fixedly mounted on the horizontal plate 422 of the roll-over stand 42 at the middle portion thereof, the limiting member 6 includes an extending portion 61 and a horizontal portion 62, the extending portion 61 is disposed on the lower surface of the horizontal portion 62, the extending portion 61 and the horizontal portion 62 are integrally formed, and the horizontal portion 62 is disposed in a long strip shape. Guide way 12 has been seted up to the last lateral wall of unmanned aerial vehicle 1 shell, guide way 12 sets up along unmanned aerial vehicle 1's direction of flight, guide way 12 can communicate unmanned aerial vehicle 1's inside and outside, the part of guide way 12 sets up on unmanned aerial vehicle 1's shell, the part is located casing 23, when power tail-rotor 21 is the level setting, the opening of guide way 12 can be sealed to the horizontal part 62 of locating part 6, and the up end of horizontal part 62 and unmanned aerial vehicle 1's outer peripheral face is in same curved surface.

Referring to fig. 5 and 7, a positioning block 121 is fixedly arranged on one side of the guide groove 12 away from the power tail rotor 21. The positioning block 121 is disposed along the longitudinal direction of the guide groove 12, and the positioning block 121 is disposed below the horizontal portion 62 of the stopper 6; the guide way 12 has been seted up in one side that is close to power tail-rotor 21 and has been stepped down the groove, the groove of stepping down sets up along the length direction of guide way 12, and the open end in groove of stepping down towards the inside of casing 23, when power tail-rotor 21 is the level setting, the edge butt of locating part 6 lower surface in the up end of locating piece 121, the upper surface edge butt of locating part 6 in the diapire in the groove of stepping down, the realization is to the restriction of 6 turned angle of locating part, meanwhile, locating part 6 is spacing in the inside of guide way 12, the counter-torque that produces when avoiding power tail-rotor 21 level makes steering wheel 41 atress.

Referring to fig. 5 and 7, the limiting member 6 is slidably connected to the guide groove 12, when the steering engine 41 is started, the steering engine 41 drives the roll-over stand 42 to rotate, the roll-over stand 42 drives the limiting member 6 to move synchronously, so that the horizontal portion 62 of the limiting member 6 is turned over downwards, at this time, the horizontal portion 62 of the limiting member 6 is separated from the positioning block 121, in the process that the roll-over stand 42 is turned over from 180 degrees to 90 degrees, the horizontal portion 62 of the limiting member 6 is turned over from 180 degrees to 90 degrees, one end of the horizontal portion 62 of the limiting member 6 is located above the guide groove 12, the other end of the horizontal portion 62 of the limiting member 6 is located below the guide groove.

With reference to fig. 5 and 7, an arc surface 611 is disposed on one side of the extending portion 61 of the limiting member 6, which faces the steering engine 41, and an arc opening end of the arc surface 611 faces the steering engine 41, so that the limiting member 6 and the steering engine 41 do not interfere with each other in the rotation process.

Referring to fig. 2 and 5, the power source 22 is preferably a motor, the output shaft of the motor is horizontally disposed, and the power source 22 is disposed between the transverse plate 422 of the roll-over stand 42 and the power tail rotor 21. One end and power supply 22 fixed connection that steering wheel 41 was kept away from to roll-over stand 42, roll-over stand 42 diaphragm 422 and power supply 22 fixed connection realize that roll-over stand 42 can drive power supply 22 and rotate in step at the pivoted in-process, realize adjusting power tail rotor 21's rotation, power tail rotor 21 and power supply 22's the coaxial rotation of output, realize the drive to power tail rotor 21, rotate through power tail rotor 21 and can provide power for unmanned aerial vehicle 1.

The implementation principle of the embodiment is as follows: start power supply 22, power supply 22 drives the coaxial rotation of power tail rotor 21, provide power tail rotor 21 pivoted power, start steering wheel 41 simultaneously, steering wheel 41 can drive roll-over stand 42 and rotate around steering wheel 41's output shaft, the realization is to the upset drive of power tail rotor 21, power tail rotor 21 is rotated to vertical state by the horizontality, when power tail rotor 21 rotates to certain angle, close steering wheel 41, power tail rotor 21 rotates and can provide power for unmanned aerial vehicle 1, the promotion to unmanned aerial vehicle 1 is realized, when unmanned aerial vehicle 1 promotes certain height, drive steering wheel 41 counter-rotation, make power tail rotor 21 reply the horizontality, unmanned aerial vehicle 1 can the straight line flight this moment.

When needing unmanned aerial vehicle 1 to change flight direction, earlier overturn to certain angle through steering wheel 41 drive power tail rotor 21, then start step motor 31, step motor 31 drives the coaxial rotation of driving gear 32, because annular tooth 33 and driving gear 32 mesh, the rotation of annular tooth 33, annular tooth 33 drives casing 23 synchronous motion, the rotation regulation to power tail rotor 21 is realized, because power tail rotor 21 provides the direction change of power, make unmanned aerial vehicle 1 under the power effect of power tail rotor 21 the change direction. The in-process that changes unmanned aerial vehicle 1 flight state only adjusts through the control between a steering wheel 41 and a power tail rotor 21 and a step motor 31, changes unmanned aerial vehicle 1's lift, reduces unmanned aerial vehicle 1's weight, improves unmanned aerial vehicle 1's load-carrying capacity.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. Unmanned aerial vehicle turns to tail-rotor, locate power supply (22) outside casing (23) including a power tail-rotor (21) and drive power tail-rotor (21) pivoted power supply (22) and cover, power tail-rotor (21) set up in the end of unmanned aerial vehicle (1), its characterized in that, unmanned aerial vehicle (1) is provided with upset subassembly (4) that can drive power tail-rotor (21) upset, upset subassembly (4) are including steering wheel (41) and roll-over stand (42), the one end and steering wheel (41) of roll-over stand (42) are connected, the other end and power supply (22) fixed connection, steering wheel (41) output shaft and the perpendicular setting of flight direction of unmanned aerial vehicle (1).

2. The unmanned aerial vehicle steering tail rotor of claim 1, wherein the roll-over stand (42) comprises two connecting plates (421), the two connecting plates (421) are arranged oppositely, one connecting plate (421) and an output shaft of the steering engine (41) rotate synchronously, and the other connecting plate (421) and the steering engine (41) are connected in a rotating mode.

3. The unmanned aerial vehicle steering tail rotor of claim 2, wherein a rotating hole is formed in one end, close to the steering gear (41), of the connecting plate (421), a blocking piece (5) is fixedly arranged after an output shaft of the steering gear (41) penetrates through the rotating hole, the blocking piece (5) is fixedly connected with the connecting plate (421), the steering gear (41) is provided with a driven shaft (43), and the driven shaft (43) penetrates through the rotating hole of the other connecting plate (421) and is rotatably connected with the rotating hole.

4. The unmanned aerial vehicle steering tail rotor of claim 3, wherein the output end of the steering engine (41) is provided with a gear (411), the baffle plate (5) is correspondingly provided with a tooth slot, and the gear (411) is meshed with the tooth slot.

5. The unmanned aerial vehicle steering tail rotor of claim 1, wherein the unmanned aerial vehicle (1) housing is provided with a guide groove (12), the guide groove (12) is arranged along the flight direction of the unmanned aerial vehicle (1), the steering engine (41) is provided with a limiting part (6), one end of the limiting part (6) far away from the steering engine (41) is inserted into the guide groove (12), and the limiting part (6) is connected with the guide groove (12) in a sliding manner.

6. The unmanned aerial vehicle steering tail rotor of claim 5, wherein one side of the limiting member (6) facing the steering engine (41) is provided with an arc surface (611).

7. The unmanned aerial vehicle steering tail rotor of claim 5, wherein a positioning block (121) is arranged on one side of the guide groove (12) far away from the power tail rotor (21).

8. The unmanned aerial vehicle steering tail rotor of claim 7, wherein the guide groove (12) is provided with a yielding groove at one side close to the power tail rotor (21), and when the limiting member (6) abuts against the positioning block (121), one end of the limiting member (6) close to the power tail rotor (21) is inserted into the yielding groove.

9. Unmanned aerial vehicle steering tail rotor according to claim 1, characterized in that casing (23) and unmanned aerial vehicle (1) shell rotate to be connected, unmanned aerial vehicle (1) is provided with drive power tail rotor (21) wobbling adjustment Assembly (3).

10. The unmanned aerial vehicle steering tail rotor of claim 9, wherein the adjusting assembly (3) comprises a driving gear (32) arranged on a housing of the unmanned aerial vehicle (1), an annular gear (33) arranged on the housing (23) and a stepping motor (31) driving the driving gear (32) to rotate, and the driving gear (32) is meshed with the annular gear (33).

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