CN212890965U - Unmanned aerial vehicle's power unit and unmanned aerial vehicle - Google Patents

Abstract

The utility model discloses an unmanned aerial vehicle's power unit and unmanned aerial vehicle, unmanned aerial vehicle includes the horn device, power unit includes power device and drive arrangement, drive arrangement includes drive assembly, output shaft and first transmission assembly, along the axial of output shaft, the relative horn device of output shaft is portable, drive assembly is used for driving the output shaft and removes, first transmission assembly is used for transmitting the power transmission of output shaft for power device around predetermineeing the axis rotation with the relative horn device of drive power device, predetermine the axis parallel or the coincidence with the axis of output shaft. According to the utility model discloses unmanned aerial vehicle's power unit has adopted one to follow self axial displacement's output shaft and first transmission assembly and has transmitted drive assembly's power transmission for power device, and the transmission form is simple, uses when unmanned aerial vehicle goes up, can conveniently change unmanned aerial vehicle's flight state effectively to make unmanned aerial vehicle's simple structure compact, small in size.

Description

Unmanned aerial vehicle's power unit and unmanned aerial vehicle

Technical Field

The utility model belongs to the technical field of the unmanned air vehicle technique and specifically relates to an unmanned aerial vehicle's power unit and unmanned aerial vehicle are related to.

Background

Along with the development of unmanned aerial vehicle technique, people can utilize unmanned aerial vehicle to accomplish a lot of work, for example: the fire extinguishing liquid spraying, aerial photography, electric power inspection, environment monitoring, disaster patrol and other works in forest fires. In the correlation technique, unmanned aerial vehicle generally is many rotor unmanned aerial vehicle, this kind of unmanned aerial vehicle has four basically, six or eight this kind even number rotors, after the rotor rotates, just can produce the thrust that rises, drive unmanned aerial vehicle takes off, in this kind of structural style, the rotor total distance is fixed unchangeable, through changing the relative speed between the different rotors, can change the size of unipolar propulsive force, thereby can change unmanned aerial vehicle's flight state, this kind of unmanned aerial vehicle is owing to the adoption be many rotor structures, consequently corresponding also need use a plurality of horn devices to support each rotor, thereby can lead to unmanned aerial vehicle's whole size great, unmanned aerial vehicle's structure is complicated, manufacturing cost is also than higher.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an unmanned aerial vehicle's power unit, when power unit uses on unmanned aerial vehicle, can be so that unmanned aerial vehicle's structure is small and exquisite.

Another object of the utility model is to provide an unmanned aerial vehicle including above-mentioned power unit.

According to the utility model discloses unmanned aerial vehicle's power unit, unmanned aerial vehicle includes the horn device, the length both ends of horn device are inner and outer end respectively, power unit includes: the power device is suitable for being arranged at the outer end of the machine arm device and can rotate around a preset axis relative to the machine arm device, and the power device comprises a power motor and a propeller connected with the power motor; the driving device comprises a driving assembly, an output shaft and a first transmission assembly, the output shaft is movable relative to the arm device along the axial direction of the output shaft, the output shaft is respectively connected with the driving assembly and the first transmission assembly, the first transmission assembly is connected with the power device, the driving assembly is used for driving the output shaft to move, the first transmission assembly is used for transmitting the power of the output shaft to the power device so as to drive the power device to rotate around the preset axis, and the preset axis is parallel to or coincident with the axis of the output shaft.

According to the power mechanism of the unmanned aerial vehicle provided by the embodiment of the utility model, because the driving device comprises the driving component, the output shaft and the first transmission component, the driving component is used for driving the output shaft to move, the first transmission component is used for transmitting the power of the output shaft to the power device so as to drive the power device to rotate around the preset axis relative to the arm device, when the power mechanism is applied to the unmanned aerial vehicle, the propeller not only can rotate around the axis to provide the power for the unmanned aerial vehicle to fly, but also can rotate around the preset axis to change the direction, thereby conveniently and effectively changing the flying state of the unmanned aerial vehicle, being beneficial to reducing the using quantity of the arm device, the driving device and the power device in the unmanned aerial vehicle, leading the structure of the unmanned aerial vehicle to be simpler and more compact, leading the size to be smaller and smaller, and reducing the manufacturing cost, in addition, an output shaft capable, first drive assembly gives power device with power transmission again, and the transmission form is simple, and the realization of being convenient for can be in addition in actual processing assembly, can be according to unmanned aerial vehicle's concrete structure will predetermine the axis setting to parallel or the coincidence with the axis of output shaft, makes things convenient for structural layout, and the flexibility is high.

In some embodiments of the present invention, the driving device is adapted to be mounted at an outer end of the horn device, and the driving device is located below the power device.

In some embodiments of the utility model, the drive arrangement still includes the casing, the casing be suitable for with the horn device links to each other, the casing is inside to be injectd and to lay the chamber, drive assembly locates lay the intracavity, be equipped with on the casing with lay the hole of dodging of chamber intercommunication, the axial one end of output shaft is located lay the intracavity and with drive assembly links to each other, the axial other end of output shaft passes it stretches out to dodge the hole the casing is outer and with first drive assembly links to each other.

In some embodiments of the present invention, the driving assembly includes a steering engine and a second transmission assembly, the second transmission assembly is a gear transmission assembly, an one-level gear of the gear transmission assembly is connected to a motor shaft of the steering engine, and a final-stage gear of the gear transmission assembly is connected to the output shaft.

The utility model discloses an in some embodiments, the wheel hub department of final stage gear is equipped with the edge the first mounting hole that the central axis of final stage gear extends, be equipped with the internal thread on the internal perisporium of first mounting hole, be equipped with the external screw thread on the periphery wall of output shaft, the internal thread with the external screw thread fit.

In some embodiments of the present invention, the driving device further includes a casing, the casing is connected to the horn device, the power device further includes a mounting seat, the power motor is installed in the mounting seat, and the mounting seat is detachably connected to the casing.

In some embodiments of the present invention, the first transmission assembly is a link transmission assembly, the link transmission assembly includes a first link, a second link and a third link, the second link is rotatably installed on the housing, the first link is located the output shaft with between the second link, the first link respectively with the output shaft with the second link pivot links to each other, the third link is located the second link with between the mounts, the third link respectively with the second link with the mounts pivot links to each other.

In some embodiments of the present invention, the second link includes a first segment and a second segment connected, a length centerline of the first segment is not parallel to a length centerline of the second segment, a junction of the first segment and the second segment, the second link is pivotally connected to the housing, the first segment is pivotally connected to the first link, and the second segment is pivotally connected to the third link.

The utility model discloses an in some embodiments, demountable installation has the pivot on the casing, the pivot is relative the casing can wind predetermine the axis and rotate, mount pad detachably cover is established in the pivot.

In some embodiments of the present invention, the mounting seat is connected to the rotating shaft through a spline.

In some embodiments of the present invention, the mounting seat is provided with a second mounting hole matched with the rotating shaft, the mounting seat includes a base and a cover plate, the cover plate is detachably connected to the base and defines the second mounting hole together with the base.

According to the utility model discloses unmanned aerial vehicle, include: a fuselage assembly; the two ends of the length of the horn device are respectively an inner end and an outer end, and the inner end of the horn device is connected with the machine body assembly; and the power mechanism.

According to the unmanned aerial vehicle of the embodiment of the utility model, because the driving device comprises the driving component, the output shaft and the first transmission component, the driving component is used for driving the output shaft to move, the first transmission component is used for transmitting the power of the output shaft to the power device so as to drive the power device to rotate around the preset axis relative to the arm device, when the power device is applied to the unmanned aerial vehicle, the propeller not only can rotate around the self axis to provide the power for the unmanned aerial vehicle to fly, but also can rotate around the preset axis to change the direction of the variable force, thereby conveniently and effectively changing the flying state of the unmanned aerial vehicle, being beneficial to reducing the using quantity of the arm device, the driving device and the power device in the unmanned aerial vehicle, leading the structure of the unmanned aerial vehicle to be simpler and more compact, leading the size to be smaller and smaller, reducing the manufacturing cost, in addition, the output shaft, first drive assembly gives power device with power transmission again, and the transmission form is simple, and the realization of being convenient for can be in addition in actual processing assembly, can be according to unmanned aerial vehicle's concrete structure will predetermine the axis setting to parallel or the coincidence with the axis of output shaft, makes things convenient for structural layout, and the flexibility is high.

In some embodiments of the present invention, the fuselage assembly includes an assembly body, a mounting frame, and a spacer, the assembly body is connected to the horn device, the mounting frame is connected to the total cost body and defines a mounting space, the spacer is located in the mounting space and connected to the mounting frame, the spacer separates the mounting space into a first mounting space and a second mounting space that are spaced apart.

In some embodiments of the present invention, the horn device includes a first arm section and a second arm section, the first arm section is connected to the fuselage assembly, the second arm section is connected to the first arm section between the unfolding position and the folding position, the unfolding position, the length center line of the second arm section coincides with the length center line of the first arm section in the folding position, the length center line of the second arm section does not coincide with the length center line of the first arm section.

In some embodiments of the present invention, the first arm section is close to one end of the second arm section is provided with a first connecting member, the second arm section is close to one end of the first arm section is provided with a second connecting member, the first connecting member is connected with the second connecting member in a pivot manner to expand the position, the first connecting member is connected with the second connecting member in a butt manner and is fixedly connected with the second connecting member through a fastener.

In some embodiments of the present invention, the unmanned aerial vehicle comprises two said horn devices, two said power device and two said driving device, each said outer end of horn device is installed with one said power device and one said driving device respectively.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 2 is a top view of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an installation frame of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an arm device of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 5 is a perspective view of a first connector of an unmanned aerial vehicle according to an embodiment of the invention;

figure 6 is a perspective view of a second connector of an unmanned aerial vehicle according to an embodiment of the invention;

fig. 7 is a top view of an arm arrangement of an unmanned aerial vehicle according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view taken along A-A of FIG. 7;

fig. 9 is a perspective view of a housing of a drive of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 10 is a perspective view of a second drive assembly portion of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 11 is a perspective view of a final gear of the drone in accordance with an embodiment of the present invention;

figure 12 is a perspective view of an output shaft of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 13 is a perspective view of a first drive assembly portion of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 14 is an exploded view of a power plant of an unmanned aerial vehicle according to an embodiment of the invention.

Reference numerals:

a drone 100;

a fuselage assembly 1; an assembly body 11; a mounting frame 12; the installation space 121; a first installation space 1211; a second mounting space 1212; a spacer 13;

a horn device 2; a first arm segment 21; a second arm segment 22; a first connecting member 23; a fitting groove 231; a second connecting member 24; a fitting projection 241;

a power plant 3; a power motor 31; a propeller 32; a mount 33; the second mounting hole 331; a base 332; a cover plate 333;

a drive device 4; a drive assembly 41; a steering engine 411; a second transmission assembly 412; a primary gear 4121; a final stage gear 4122; a first mounting hole 41221; an output shaft 42; a housing 43; a mounting chamber 431; relief holes 432; a rotating shaft 433; a first transmission assembly 44; a first link 441; the second link 442; a first pole segment 4421; a second pole segment 4422; the third link 443.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

The power mechanism of the unmanned aerial vehicle 100 according to the embodiment of the present invention is described below with reference to the drawings, and for convenience of describing the specific working principle of the power mechanism, the unmanned aerial vehicle 100 according to the embodiment of the present invention is first described here.

As shown in fig. 1 and fig. 2, according to the utility model discloses unmanned aerial vehicle 100, including fuselage assembly 1, horn device 2 and power unit, power unit includes power device 3 and drive arrangement 4.

As shown in fig. 1 and 4, the length both ends of horn device 2 are inner and outer end respectively, and the inner of horn device 2 links to each other with fuselage assembly 1, and power device 3 locates the outer end of horn device 2 and can rotate around predetermineeing the axis relative to horn device 2, and power device 3 includes power motor 31 and the screw 32 that links to each other with power motor 31, and from this, when power device 3 worked, power motor 31 can drive screw 32 and rotate to flight for unmanned aerial vehicle 100 provides power.

As shown in fig. 8, 10 and 14, the driving device 4 includes a driving assembly 41, an output shaft 42 and a first transmission assembly 44, the output shaft 42 is movable relative to the arm device 2 along the axial direction of the output shaft 42, the output shaft 42 is respectively connected with the driving assembly 41 and the first transmission assembly 44, the first transmission assembly 44 is connected with the power device 3, the driving assembly 41 is used for driving the output shaft 42 to move, the first transmission assembly 44 is used for transmitting the power of the output shaft 42 to the power device 3 to drive the power device 3 to rotate relative to the arm device 2 around a preset axis, the preset axis is parallel to or coincided with the axis of the output shaft 42, therefore, when the driving device 4 works, the driving assembly 41 can drive the output shaft 42 to move along the axial direction of itself, because the output shaft 42 is also connected with the first transmission assembly 44, and the first transmission assembly 44 is connected with the power device 3, so that the axial movement of the output shaft 42 is changed through the transmission of the, finally, the power device 3 can be driven to rotate around a preset axis relative to the arm device 2, so that the flight state of the unmanned aerial vehicle 100 can be changed, for example, the flight direction can be changed.

In the correlation technique, traditional unmanned aerial vehicle generally is many rotor unmanned aerial vehicle, this kind of unmanned aerial vehicle has four basically, six or eight this kind even number rotors, after the rotor rotates, just can produce the thrust that rises, drive unmanned aerial vehicle takes off, in this kind of structural style, the rotor overall pitch is fixed unchangeable, through changing the relative speed between the different rotors, can change the size of unipolar thrust, thereby can change unmanned aerial vehicle's flight state, this kind of unmanned aerial vehicle is owing to the adoption be many rotor structures, consequently corresponding also need use a plurality of horn devices to support each rotor, thereby can lead to unmanned aerial vehicle's whole size great, unmanned aerial vehicle's structure is complicated, manufacturing cost is also than higher.

Based on the above situation, the utility model creatively designs an unmanned aerial vehicle 100, the driving device 4 of the unmanned aerial vehicle 100 includes a driving component 41, an output shaft 42 and a first transmission component 44, the output shaft 42 can move along its own axial direction relative to the arm device 2, the output shaft 42 is respectively connected with the driving component 41 and the first transmission component 44, the first transmission component 44 is connected with the power device 3, when the driving device 4 works, the driving component 41 can finally drive the power device 3 to rotate around a preset axis parallel to or coincident with the axis of the output shaft 42 through the output shaft 42 and the first transmission component 44, and since the power device 3 includes the propeller 32, the propeller 32 can finally rotate around the preset axis relative to the arm device 2, that is to say, the propeller 32 can not only rotate around its own axis to provide the power for the unmanned aerial vehicle 100 to fly, but also can rotate around the preset axis to change the direction, and thus the flight status of the drone 100 may be changed. Under this condition, alright in order to reduce power device 3's use quantity, and then can reduce the horn device 2 that links to each other with power device 3 and be used for driving power device 3's drive arrangement 4's quantity for unmanned aerial vehicle 100's structure is simpler, the size is smaller and more exquisite, overall structure is compacter, and can reduce unmanned aerial vehicle 100's manufacturing cost.

Note that, when the flight direction of the drone 100 is controlled by the drive device 4, for example, when the drone 100 flies in a vertical direction, the propeller 32 provides the drone 100 with a vertically upward lift, and the resultant force applied to the unmanned aerial vehicle 100 is in a vertical upward direction (it should be explained that the main force applied to the unmanned aerial vehicle 100 at this time may be a vertical upward lifting force and a gravity applied to the unmanned aerial vehicle 100 itself, and the lifting force is greater than the gravity), the propeller 32 can be driven by the driving device 4 to rotate around a preset axis to incline to a certain angle relative to the arm device 2, at this time, the direction of the force provided by the propeller 32 is correspondingly changed, the direction of the resultant force applied to the unmanned aerial vehicle 100 is also correspondingly changed, for example, if the propeller 32 rotates forward, the resultant force tilts forward, and the drone 100 flies forward; similarly, the screw 32 hypsokinesis rotates, then resultant force leans backward, and the unmanned aerial vehicle 100 flies backward, etc., and in addition, through adjusting the rotational speed of the screw 32 on the different horn devices 2 respectively, the unmanned aerial vehicle 100 can also realize actions such as turning left and right, and no description is given here.

In addition, it can follow self axial displacement's output shaft 42 here to have adopted one to come the power transmission of drive assembly 41 to transmit first transmission assembly 44, first transmission assembly 44 transmits power again for power device 3 in order to drive power device 3 around predetermineeing the axis and rotate, the transmission form is simple, and the realization of being convenient for, in the actual processing assembly, can be according to unmanned aerial vehicle 100's concrete structure with predetermineeing the axis setting to be parallel or the coincidence with the axis of output shaft 42, convenient structural configuration, the flexibility is high. Moreover, the first transmission assembly 44 is connected between the output shaft 42 and the power device 3, that is, the output shaft 42 is not directly connected with the power device 3, but is indirectly connected with the power device 3 through the first transmission assembly 44, so that according to the specific structural form of the first transmission assembly 44, more choices can be provided for the arrangement positions of the output shaft 42 and the power device 3, the flexibility is better, and the problem that the arrangement positions of the output shaft 42 and the power device 3 are limited due to the direct connection of the output shaft 42 and the power device 3 is avoided, and further the unmanned aerial vehicle 100 is inconvenient to process and assemble is further caused.

According to the unmanned aerial vehicle 100 of the embodiment of the present invention, since the driving device 4 includes the driving assembly 41, the output shaft 42 and the first transmission assembly 44, the driving assembly 41 is used for driving the output shaft 42 to move, the first transmission assembly 44 is used for transmitting the power of the output shaft 42 to the power device 3 to drive the power device 3 to rotate around the predetermined axis relative to the arm device 2, when the power device is applied to the unmanned aerial vehicle 100, the propeller 32 not only can rotate around its own axis to provide the power for the unmanned aerial vehicle 100 to fly, but also can rotate around the predetermined axis to change the direction of the power, so as to conveniently and effectively change the flying state of the unmanned aerial vehicle 100, and facilitate reducing the number of the arm devices 2, the driving device 4 and the power device 3 in the unmanned aerial vehicle 100, so that the structure of the unmanned aerial vehicle 100 is more compact, the size, in addition, the output shaft 42 capable of moving along the self axial direction is adopted to transmit the power of the driving component 41 to the first transmission component 44, the first transmission component 44 transmits the power to the power device 3, the transmission form is simple, the implementation is convenient, in the actual processing and assembling process, the axis can be set to be parallel to or overlapped with the axis of the output shaft 42 according to the specific structure of the unmanned aerial vehicle 100, the structure layout is convenient, and the flexibility is high.

According to the power mechanism of the unmanned aerial vehicle 100 of the embodiment of the present invention, since the driving device 4 includes the driving component 41, the output shaft 42 and the first transmission component 44, the driving component 41 is used for driving the output shaft 42 to move, the first transmission component 44 is used for transmitting the power of the output shaft 42 to the power device 3 to drive the power device 3 to rotate around the preset axis relative to the arm device 2, when the power mechanism is applied to the unmanned aerial vehicle 100, the propeller 32 not only can rotate around its own axis to provide the power for the unmanned aerial vehicle 100 to fly, but also can rotate around the preset axis to change the direction of the power, so as to conveniently and effectively change the flying state of the unmanned aerial vehicle 100, and facilitate reducing the number of the arm devices 2, the driving devices 4 and the power devices 3 in the unmanned aerial vehicle 100, so that the structure of the unmanned aerial vehicle 100 is simpler and more, in addition, the output shaft 42 capable of moving along the self axial direction is adopted to transmit the power of the driving component 41 to the first transmission component 44, the first transmission component 44 transmits the power to the power device 3, the transmission form is simple, the implementation is convenient, in the actual processing and assembling process, the axis can be set to be parallel to or overlapped with the axis of the output shaft 42 according to the specific structure of the unmanned aerial vehicle 100, the structure layout is convenient, and the flexibility is high.

In some embodiments of the utility model, as shown in fig. 1, fig. 7 and fig. 8, drive arrangement 4 is installed in horn device 2's outer end, make things convenient for drive arrangement 4's installation from this, and can needn't occupy the space on the fuselage assembly 1, and simultaneously, because can be close to power device 3 behind drive arrangement 4 installation and horn device 2's the outer end, therefore, make when drive arrangement 4 drives relative horn device 2 of power device 3 and rotates around predetermineeing the axis, the drive distance is shorter, thereby can improve drive arrangement 4's validity and operational reliability, and then can improve unmanned aerial vehicle 100's controllability, and, drive arrangement 4 is convenient with being connected of power device 3, thereby can improve unmanned aerial vehicle 100's packaging efficiency.

In some embodiments of the present invention, as shown in fig. 1 and 8, driving device 4 may be located below power device 3, and thus driving device 4 may drive power device 3 to rotate around a preset axis below power device 3, so as to avoid influence of driving device 4 on installation and work of power device 3, thereby ensuring operational reliability of driving device 4 and power device 3, and reliability of driving device 4 driving power unit to rotate. However, the present invention is not limited to this, and the driving device 4 may be provided on the side of the power unit 3, for example.

When the driving device 4 is located below the power unit 3, the driving device 4 may be located directly below the power unit 3, or the driving device 4 may be located obliquely below the power unit 3, and the driving device 4 may be located entirely below the power unit 3 or partially below the power unit 3, as long as most of the driving device 4 is located below the power unit 3, which is not described herein again.

In some embodiments of the present invention, as shown in fig. 9 and 10, the driving device 4 further includes a housing 43, and the housing 43 is connected to the horn device 2. Specifically, the housing 43 is externally fitted to the outer end of the arm unit 2, thereby simplifying the structure.

The specific connection form of the housing 43 and the horn device 2 is not limited. For example, the housing 43 may be fixedly connected to the horn device 2 by welding or bonding, so that the housing 43 and the horn device 2 have high connection strength; for example, the housing 43 is detachably connected to the device 2, so that the device 2 can be easily detached and assembled.

Further, as shown in fig. 10 and 13, a housing chamber 431 is defined inside the housing 43, the driving assembly 41 is disposed in the housing chamber 431, a relief hole 432 communicated with the housing chamber 431 is formed in the housing 43, one axial end of the output shaft 42 is located in the housing chamber 431 and connected to the driving assembly 41, and the other axial end of the output shaft 42 passes through the relief hole 432 and extends out of the housing 43 and is connected to the arm device 2, so that the housing 43 can also protect the driving assembly 41 and the output shaft 42 to prevent the driving assembly 41 from being exposed and easily damaged.

In some embodiments of the present invention, as shown in fig. 8 and 10, the driving assembly 41 includes a steering engine 411 and a second transmission assembly 412, the second transmission assembly 412 is a gear transmission assembly, a first-stage gear 4121 of the gear transmission assembly is connected to a motor shaft of the steering engine 411, a last-stage gear 4122 of the gear transmission assembly is connected to the output shaft 42, so that the steering engine 411 is not directly connected to the output shaft 42, thereby the gear transmission assembly can be utilized to generate a speed-reducing or speed-increasing effect, and further the steering engine 411 with different powers can be set according to different situations, for example, when the gear transmission assembly is a speed-reducing gear transmission assembly, the gear transmission assembly has a speed-reducing and moment-increasing effect, so as to conveniently drive the power device 3 to rotate, and the gear transmission assembly has precise transmission and reliable transmission, when the driving device 4 drives the power device 3, fine adjustment of the inclination, thereby can improve unmanned aerial vehicle 100's flight direction's controllability, simultaneously, can also utilize meshing pivoted characteristic between the gears of all levels among the gear drive assembly, realize at steering wheel 411 stop work time, make power device 3 can keep in this position to further improve unmanned aerial vehicle 100's controllability and the stability of flight.

It should be noted that, regarding the gear transmission assembly, when viewed from the power transmission direction, the gear connected to the input end is the first-stage gear 4121, the gear connected to the output end is the last-stage gear 4122, and the number of the intermediate gears participating in the meshing transmission between the first-stage gear 4121 and the last-stage gear 4122 is not limited, and the design can be selected according to the transmission requirement. In addition, the utility model discloses also do not do the restriction to the concrete structural style of gear drive subassembly, for example can be the roller gear transmission, also can be bevel gear transmission etc..

In some embodiments of the present invention, as shown in fig. 11 and 12, the hub of the last stage gear 4122 is provided with a first mounting hole 41221 extending along the central axis of the last stage gear 4122, an internal thread is provided on the inner peripheral wall of the first mounting hole 41221, an external thread is provided on the outer peripheral wall of the output shaft 42, the internal thread is matched with the external thread, thereby when the last stage gear 4122 rotates around the central axis of itself, the output shaft 42 can be driven to move, the structure is simple, the transmission is reliable, and the form of the threaded fit can realize the stepless adjustment of the axial movement of the output shaft 42, thereby being beneficial to achieving the precise control of the rotation angle of the power device 3.

It will be appreciated that by changing the direction of rotation of the final stage gear 4122, the direction of movement of the output shaft 42 can be changed, so that by the reciprocating rotation of the final stage gear 4122, the reciprocating movement of the output shaft 42, and thus the reciprocating rotation of the power unit 3 about the predetermined axis, can be achieved.

In some embodiments of the present invention, as shown in fig. 13 and 14, the power device 3 further includes a mounting seat 33, the power motor 31 is mounted on the mounting seat 33, and the mounting seat 33 is detachably connected to the housing 43, thereby facilitating the mounting and dismounting of the mounting seat 33 and the housing 43.

It should be noted that, the detachable connection manner between the mounting seat 33 and the housing 43 is not limited, and may be selected according to actual requirements.

In some embodiments of the present invention, as shown in fig. 13, the first transmission assembly 44 is a connecting rod transmission assembly, and here, a connecting rod transmission form is adopted because in the connecting rod transmission, different motion forms can be transmitted by adopting connecting rods with different length and size, different structural forms and different quantities, so as to satisfy the transmission requirement well, and the connecting rod itself has a simple structural form, and is convenient to manufacture and assemble.

Alternatively, as shown in fig. 13, the link transmission assembly includes a first link 441, a second link 442 and a third link 443, the second link 442 is rotatably mounted on the housing 43, the first link 441 is disposed between the output shaft 42 and the second link 442, the first link 441 is pivotally connected to the output shaft 42 and the second link 442, respectively, the third link 443 is disposed between the second link 442 and the mounting seat 33, and the third link 443 is pivotally connected to the second link 442 and the mounting seat 33, respectively, so that the axial movement of the output shaft 42 can be converted into the rotation of the mounting seat 33 about the predetermined axis by the transmission of the link transmission assembly.

It should be noted that the utility model discloses quantity and the structure to connecting rod among the connecting rod drive assembly do not do the restriction, specifically can select according to actual demand, as long as output shaft 42's power passes through connecting rod drive assembly's transmission effect after, can realize that mount pad 33 rotates around predetermineeing the axis.

In some embodiments of the present invention, as shown in fig. 13, the second link 442 includes a first link segment 4421 and a second link segment 4422 connected to each other, and a length center line of the first link segment 4421 is not parallel to a length center line of the second link segment 4422, such that an included angle is formed between the first link segment 4421 and the second link segment 4422, such that the second link 442 forms a corner at a connection point of the first link segment 4421 and the second link segment 4422, and the second link 442 is pivotally connected to the housing 43 at a connection point of the first link segment 4421 and the second link segment 4422, the first link segment 4421 is pivotally connected to the first link 441, and the second link segment 4422 is pivotally connected to the third link 443, wherein the second link 442 is not a straight link, thereby facilitating a change of a transmission direction of a force, and enabling the link assembly to better satisfy a transmission requirement between the output shaft 42 and the mounting seat 33.

Alternatively, as shown in fig. 13, the second link 442 is an L-shaped lever, thereby having a simple structure and being easily implemented.

In some embodiments of the present invention, as shown in fig. 14, a rotating shaft 433 is detachably mounted on the housing 43, the rotating shaft 433 can rotate around a preset axis relative to the housing 43, and the mounting seat 33 is detachably mounted on the rotating shaft 433, so that when the rotating shaft 433 rotates around the preset axis, the mounting seat 33 can rotate synchronously with the rotating shaft 433, and the connecting between the rotating shaft 433 and the housing 43 and between the mounting seat 33 and the rotating shaft 433 can be detached, thereby facilitating the dismounting.

Specifically, the preset axis is the self axis of the rotating shaft 433, and the self axis of the rotating shaft 433 is parallel to the axis of the output shaft 42.

The utility model discloses an in some embodiments, the axial both ends of pivot 433 are passed through the bearing and are linked to each other with casing 43, and frictional force is too big when this can avoid pivot 433 and casing 43 direct contact to lead to rotating, makes things convenient for pivot 433 to rotate after setting up the bearing.

In some embodiments of the present invention, as shown in fig. 14, the mounting seat 33 is connected to the rotating shaft 433 by a spline, so that the structure is simple and the assembly is convenient.

Specifically, be equipped with on mount pad 33 with pivot 433 complex second mounting hole 331, be equipped with the internal spline on the second mounting hole 331, be equipped with the external spline on the periphery wall of pivot 433, the internal spline and the external spline cooperation.

It should be noted that, the utility model discloses do not do the restriction to the specific structure form and the quantity of spline, for example the spline can be standard rectangle spline, also can be for having the protruding structure of special shape, specifically can select according to actual need or processing difficulty etc. degree.

In some embodiments of the present invention, as shown in fig. 14, the mounting base 33 includes a base 332 and a cover 333, and the cover 333 is detachably connected to the base 332 and defines a second mounting hole 331 together with the base 332, so that the structure is simple and the assembly is convenient.

Specifically, for example, referring to fig. 14, the cover 333 is disposed under the base 332, a portion of the lower surface of the base 332 is recessed upward to form an upper half of the second mounting hole 331, and a portion of the upper surface of the cover 333 is recessed downward to form a lower half of the second mounting hole 331, so that when the cover 333 is mounted on the base 332, the second mounting hole 331 is defined together.

In some embodiments of the present invention, as shown in fig. 14, the cover plate 333 is detachably connected to the base 332 by bolts, so that the structure is simple and the implementation is convenient.

In some embodiments of the present invention, as shown in fig. 1 and 3, the fuselage assembly 1 includes an assembly body 11, a mounting frame 12 and a spacer 13, the assembly body 11 is connected to the horn device 2, the mounting frame 12 is connected to the assembly body 11 and defines the mounting space 121, the spacer 13 is located in the mounting space 121 and is connected to the mounting frame 12, the spacer 13 separates the mounting space 121 into a first mounting space 1211 and a second mounting space 1212 that are spaced apart, and therefore, the structure is simple, and the carrying capacity of the unmanned aerial vehicle 100 can be improved.

In practical applications, one of the first installation space 1211 and the second installation space 1212 may be used to install a battery, and the other may be used to install an object to be loaded, such as a camera for aerial photography or a liquid storage box containing a medicament for agricultural spraying, which may be specifically selected according to practical requirements, but the present invention is not limited thereto.

Alternatively, as shown in fig. 3, the mounting frame 12 is a ring-shaped structure, so that the mounting frame itself can define the mounting space 121, and the structure is simple and convenient to implement.

It should be noted that the present invention is not limited to the specific shape of the ring shape of the mounting frame 12, for example, the mounting frame 12 may be a circular ring shape, or a rectangular ring shape, or a ring shape with other shapes, and in addition, the mounting frame 12 may be an integrated structure, or the mounting frame 12 is formed by sequentially connecting a plurality of frame strips end to end.

In some embodiments of the present invention, as shown in fig. 1 and 4, the arm device 2 includes a first arm section 21 and a second arm section 22, the first arm section 21 is connected to the fuselage assembly 1, the second arm section 22 is rotatably connected to the first arm section 21 between an extended position and a folded position, in the extended position, a length center line of the second arm section 22 coincides with a length center line of the first arm section 21, so that the second arm section 22 is collinear with the first arm section 21, at which time the length of the arm device 2 is the largest, in the folded position, the length center line of the second arm section 22 does not coincide with the length center line of the first arm section 21, so that the second arm section 22 forms an included angle with the first arm section 21, thereby reducing the overall length of the arm device 2, thereby enabling the arm device 2 to be folded, and when the unmanned aerial vehicle 100 is not required to be used, the second arm section 22 is rotated to the folded position, reduce unmanned aerial vehicle 100's occupation space, conveniently accomodate, when needs use unmanned aerial vehicle 100, alright rotate second arm section 22 to the expansion position, facilitate the use. In addition, the second arm section 22 is switched between the unfolding position and the folding position through rotation, the adjustment is convenient, and the second arm section 22 is always connected with the first arm section 21, so that compared with a split folding design, the structure is not easy to lose parts.

In some embodiments of the present invention, the first arm segment 21 and the second arm segment 22 are configured to be hollow and tubular, so that the structure is simple and the implementation is convenient. In practical applications, the first arm section 21 and the second arm section 22 are not limited in material, for example, the first arm section 21 and the second arm section 22 may be aluminum alloy tubes wrapped by carbon fiber materials, or plastic tubes, or carbon tubes made of carbon fiber materials.

In some embodiments of the present invention, as shown in fig. 4, 5 and 6, one end of the first arm section 21 close to the second arm section 22 is provided with a first connecting member 23, one end of the second arm section 22 close to the first arm section 21 is provided with a second connecting member 24, the first connecting member 23 is pivotally connected to the second connecting member 24, and in the unfolding position, the first connecting member 23 is abutted to the second connecting member 24 and fixedly connected to the second connecting member 24 by a fastening member (e.g., a screw), so that the first arm section 21 and the second arm section 22 are more firmly connected to each other and are not easily loosened in the unfolding position.

Alternatively, as shown in fig. 5 and 6, the first connecting member 23 and the second connecting member 24 are each configured in a cylindrical shape, the first connecting member 23 is fitted over the first arm section 21, the second connecting member 24 is fitted over the second arm section 22, and in the deployed position, the central axis of the first connecting member 23 is collinear with the central axis of the second connecting member 24, thereby achieving a simple structure.

In some embodiments of the present invention, as shown in fig. 4, 5 and 6, a portion of the end surface of the first connecting member 23 facing the second connecting member 24 is recessed toward a direction away from the second connecting member 24 to form a fitting groove 231, a portion of the end surface of the second connecting member 24 facing the first connecting member 23 is protruded toward a direction close to the first connecting member 23 to form a fitting protrusion 241, and in the expanded position, the fitting protrusion 241 is fitted with the fitting groove 231, so that the connection firmness of the first arm section 21 and the second arm section 22 in the expanded position can be further improved.

Alternatively, as shown in fig. 5 and 6, the fitting groove 231 extends in a ring shape in the circumferential direction of the first connector 23, and the fitting protrusion 241 extends in a ring shape in the circumferential direction of the second connector 24, thereby being simple in structure.

In some embodiments of the present invention, as shown in fig. 1 and 2, the unmanned aerial vehicle 100 may include two horn devices 2, two power devices 3, and two driving devices 4, and one power device 3 and one driving device 4 are respectively installed at the outer end of each horn device 2. From this, through setting up two horn devices 2, can reduce unmanned aerial vehicle 100's volume to reduce unmanned aerial vehicle 100's occupation space. In addition, when unmanned aerial vehicle 100 flies, can rotate the same or different inclination through controlling two drive arrangement 4 drive power device 3 that are located two horn device 2 outer ends respectively to and adjust power device 3 in the rotational speed of motor 31, in order to realize that unmanned aerial vehicle 100 accomplishes actions such as advancing, reversing, turning, operate comparatively simply.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (16)

1. The utility model provides an unmanned aerial vehicle's power unit, unmanned aerial vehicle includes the horn device, the length both ends of horn device are inner and outer end respectively, its characterized in that, power unit includes:

the power device is suitable for being arranged at the outer end of the machine arm device and can rotate around a preset axis relative to the machine arm device, and the power device comprises a power motor and a propeller connected with the power motor; and

the driving device comprises a driving assembly, an output shaft and a first transmission assembly, the output shaft is movable relative to the arm device along the axial direction of the output shaft, the output shaft is respectively connected with the driving assembly and the first transmission assembly, the first transmission assembly is connected with the power device, the driving assembly is used for driving the output shaft to move, the first transmission assembly is used for transmitting the power of the output shaft to the power device so as to drive the power device to rotate around the preset axis, and the preset axis is parallel to or coincided with the axis of the output shaft.

2. The power mechanism of unmanned aerial vehicle of claim 1, wherein the driving device is adapted to be installed at an outer end of the horn device, and the driving device is located below the power device.

3. The unmanned aerial vehicle's power unit of claim 1, characterized in that, drive arrangement still includes the casing, the casing be suitable for with the horn device links to each other, the casing is inside to be injectd and to lay the chamber, drive assembly locates lay the intracavity, be equipped with on the casing with lay the hole of dodging of chamber intercommunication, the axial one end of output shaft is located lay the intracavity and with drive assembly links to each other, the axial other end of output shaft passes the hole of dodging stretch out the casing outside and with first drive assembly links to each other.

4. The power mechanism of the unmanned aerial vehicle as claimed in claim 1 or 3, wherein the driving assembly comprises a steering engine and a second transmission assembly, the second transmission assembly is a gear transmission assembly, a primary gear of the gear transmission assembly is connected with a motor shaft of the steering engine, and a final gear of the gear transmission assembly is connected with the output shaft.

5. The power mechanism of an unmanned aerial vehicle according to claim 4, wherein a first mounting hole extending along a central axis of the final gear is formed at a hub of the final gear, an internal thread is formed on an inner peripheral wall of the first mounting hole, an external thread is formed on an outer peripheral wall of the output shaft, and the internal thread is matched with the external thread.

6. The unmanned aerial vehicle's power unit of claim 1, characterized in that drive arrangement still includes the casing, the casing is suitable for linking to each other with the horn device, power device still includes the mount pad, power motor installs in the mount pad, the mount pad can dismantle with the casing and link to each other.

7. The unmanned aerial vehicle's of claim 6 power unit, characterized in that the first transmission subassembly is the connecting rod transmission subassembly, the connecting rod transmission subassembly includes first connecting rod, second connecting rod and third connecting rod, the second connecting rod rotationally installs on the casing, first connecting rod is located between the output shaft and the second connecting rod, first connecting rod respectively with the output shaft with the second connecting rod pivot links to each other, the third connecting rod is located between the second connecting rod and the mount pad, the third connecting rod respectively with the second connecting rod with the mount pad pivot links to each other.

8. The unmanned aerial vehicle power mechanism of claim 7, wherein the second link comprises a first link section and a second link section that are connected, a length centerline of the first link section is not parallel to a length centerline of the second link section, the second link is pivotally connected to the housing at a connection of the first link section and the second link section, the first link section is pivotally connected to the first link, and the second link section is pivotally connected to the third link.

9. The unmanned aerial vehicle's power unit of claim 6, characterized in that, demountable installation has the pivot on the casing, the pivot can wind around predetermineeing the axis relative to the casing and rotate, mount pad detachably cover is established in the pivot.

10. The unmanned aerial vehicle's power unit of claim 9, characterized in that, the mount pad passes through splined connection with the pivot.

11. The unmanned aerial vehicle's power unit of claim 9, characterized in that, be equipped with on the mount pad with the pivot complex second mounting hole, the mount pad includes base and apron, the apron can dismantle with the base and link to each other and with the base has limited the second mounting hole jointly.

12. An unmanned aerial vehicle, comprising:

a fuselage assembly;

the two ends of the length of the horn device are respectively an inner end and an outer end, and the inner end of the horn device is connected with the machine body assembly; and

a power mechanism according to any of claims 1 to 11.

13. The drone of claim 12, wherein the fuselage assembly includes an assembly body connected to the horn device, a mounting frame connected to the total cost body and defining a mounting space, and a partition located within the mounting space and connected to the mounting frame, the partition dividing the mounting space into first and second spaced apart mounting spaces.

14. The drone of claim 12, wherein the horn device includes a first arm segment and a second arm segment, the first arm segment coupled to the fuselage assembly, the second arm segment rotationally coupled to the first arm segment between an extended position in which a length centerline of the second arm segment coincides with a length centerline of the first arm segment, and a folded position in which a length centerline of the second arm segment does not coincide with a length centerline of the first arm segment.

15. An unmanned aerial vehicle as claimed in claim 14, wherein an end of the first arm section adjacent the second arm section is provided with a first connector, an end of the second arm section adjacent the first arm section is provided with a second connector, the first connector is pivotally connected to the second connector, and in the deployed position, the first connector is in abutting connection with the second connector and is fixedly connected thereto by a fastener.

16. An unmanned aerial vehicle as claimed in any of claims 12-15, wherein the unmanned aerial vehicle comprises two of the horn devices, two of the power devices and two of the drive devices, one of the power devices and one of the drive devices being mounted to an outer end of each of the horn devices.

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