CN106379515B - Scalable oar arm component and unmanned aerial vehicle - Google Patents
Scalable oar arm component and unmanned aerial vehicle Download PDFInfo
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- CN106379515B CN106379515B CN201610999160.0A CN201610999160A CN106379515B CN 106379515 B CN106379515 B CN 106379515B CN 201610999160 A CN201610999160 A CN 201610999160A CN 106379515 B CN106379515 B CN 106379515B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U30/00—Means for producing lift; Empennages; Arrangements thereof
- B64U30/20—Rotors; Rotor supports
- B64U30/29—Constructional aspects of rotors or rotor supports; Arrangements thereof
- B64U30/296—Rotors with variable spatial positions relative to the UAV body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
- B64U10/13—Flying platforms
- B64U10/14—Flying platforms with four distinct rotor axes, e.g. quadcopters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U20/00—Constructional aspects of UAVs
- B64U20/80—Arrangement of on-board electronics, e.g. avionics systems or wiring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U50/00—Propulsion; Power supply
- B64U50/30—Supply or distribution of electrical power
- B64U50/31—Supply or distribution of electrical power generated by photovoltaics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U60/00—Undercarriages
- B64U60/50—Undercarriages with landing legs
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Abstract
The invention provides an unmanned aerial vehicle and a telescopic paddle arm assembly. An unmanned aerial vehicle includes fuselage and scalable oar arm component. The outer side of fuselage is located to scalable oar arm component. The retractable paddle arm assembly includes a first paddle arm, a second paddle arm, a gear, and a rack. The first paddle arm is fixedly connected with the gear, and the second paddle arm is fixedly connected with the rack. The gear is meshed with the rack, and when the gear rotates, the second paddle arm stretches relative to the first paddle arm through the rack. Above-mentioned unmanned aerial vehicle can be according to the user demand, allots the length of oar arm, matches the screw of different specifications to form different power effect in order to satisfy different application demands.
Description
Technical Field
The invention relates to the field of unmanned aerial vehicles, in particular to a telescopic paddle arm assembly and an unmanned aerial vehicle.
Background
At present, the majority of the paddle arms of the unmanned aerial vehicle are fixed, so that the unmanned aerial vehicle is large in size and poor in portability. In addition, during actual operation, the blades of the unmanned aerial vehicle are in fixed specification and size, and the pitch of the blades is not adjustable. When the requirement is high during heavy-load operation or during endurance, the operation power consumption is too large due to insufficient blade specifications, and the performance of the unmanned aerial vehicle is affected.
Disclosure of Invention
The invention aims to provide a telescopic paddle arm assembly with a retractable paddle arm and a propeller pitch capable of being adjusted according to requirements and an unmanned aerial vehicle.
A telescopic paddle arm assembly comprises a first paddle arm, a second paddle arm, a gear 123 and a rack 124, wherein the first paddle arm is fixedly connected with the gear 123, and the second paddle arm is fixedly connected with the rack 124;
the gear 123 is engaged with the rack 124, and when the gear 123 rotates, the second paddle arm is extended and retracted relative to the first paddle arm through the rack 124.
In one embodiment, the first paddle arm and the second paddle arm are both hollow structures, the gear 123 is fixed inside the first paddle arm, the rack 124 is fixed inside the second paddle arm, and the first paddle arm and the second paddle arm are nested.
In one embodiment, the device further comprises a driving motor 19, a rotating part of the driving motor 19 is fixedly connected with the gear 123, and a fixed part of the driving motor 19 is fixedly connected with the first paddle arm.
In one embodiment, an avoiding groove 125 is formed at one end of the second paddle arm close to the first paddle arm, and the avoiding groove 125 is used for preventing the second paddle arm from colliding with the driving motor.
In one embodiment, the number of the driving motors is at least one.
In one embodiment, the power supply device further comprises a wire winding mechanism 18, wherein the wire winding mechanism 18 is used for accommodating a wire between the power motor 16 and any one of the following devices:
a first PCB board, a first power supply;
wherein the power motor 16 is used for driving the rotation of the propeller 17.
In one embodiment, the reeling mechanism 18 is fixed inside the first paddle arm or inside the second paddle arm.
In one embodiment, when the driving motor 19 is fixedly disposed in the retractable paddle arm 122, the wire winding mechanism 18 is further configured to accommodate a wire between the driving motor 19 and any one of the following devices:
a second PCB board and a second power supply.
In one embodiment, the first paddle arm is a fixed paddle arm 121, and the fixed paddle arm 121 is fixedly connected with the body 11;
the second paddle arm is a telescopic paddle arm 122, and the telescopic paddle arm 122 is connected with a power motor 16 for driving the propeller 17 to rotate.
In one embodiment, the second paddle arm is a fixed paddle arm 121, and the fixed paddle arm 121 is fixedly connected with the body 11;
the first paddle arm is a telescopic paddle arm 122, and the telescopic paddle arm 122 is connected with a power motor 16 for driving the propeller 17 to rotate.
The utility model provides an unmanned aerial vehicle, includes fuselage 11 and above-mentioned scalable oar arm subassembly, scalable oar arm subassembly is located the outside of fuselage 11.
In the telescopic paddle arm assembly, the fixed paddle arm and the telescopic paddle arm are in driving connection through the gear and the rack, and the rack moves under the driving of the gear through the rotating gear. Therefore, the gear rotates forwards and reversely, and the rack moves forwards or backwards relatively, so that the telescopic paddle arm and the fixed paddle arm are driven to move close to or away from each other. Therefore, the length of the paddle arm of the telescopic paddle arm assembly can be adjusted through the gear rack.
When scalable oar arm component opens, can increase the distribution distance that is located the screw on a plurality of flexible oar arm tops, and then can match the screw of different specifications for unmanned aerial vehicle to form different power effect in order to satisfy different application demands. When the large-size propeller is matched, the force effect of the propeller can be improved, the overall efficiency of the unmanned aerial vehicle is further improved, and the endurance time of the unmanned aerial vehicle is prolonged.
When the retractable paddle arm assembly is retracted, the size of the drone is reduced and the drone is adapted for lower weight situations. At this moment, the propeller arm of the unmanned aerial vehicle can be matched with small-sized propellers, so that the flexibility of the unmanned aerial vehicle can be improved. And, when needs carry or deposit unmanned aerial vehicle, make scalable oar arm subassembly shrink, be convenient for placing and carrying of unmanned aerial vehicle.
Drawings
Fig. 1 is a schematic perspective view of the unmanned aerial vehicle according to the embodiment;
fig. 2 is a schematic structural view of the fuselage and the fixed paddle arm of the drone according to fig. 1;
fig. 3 is a schematic structural view of a gear and a rack of the drone according to fig. 1;
fig. 4 is a schematic structural view of a telescopic paddle arm of the drone according to fig. 1;
fig. 5 is a schematic view of the combination of the retractable and fixed paddle arms of the drone according to fig. 1;
fig. 6 is a schematic structural diagram of the wire winding mechanism of the unmanned aerial vehicle shown in fig. 2.
The reference numerals are explained below: 10. an unmanned aerial vehicle; 11. a body; 12. a retractable paddle arm assembly; 121. fixing the paddle arm; 122. a telescopic paddle arm; 123. a gear; 124. a rack; 125. an avoidance groove; 13. a power source; 15. a landing gear; 16. a power motor; 17. a propeller; 18. a winding mechanism; 19. a drive motor; 20. and (4) conducting wires.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.
The retractable paddle arm assembly 12 of the present embodiment may be applicable to other flight devices, and specifically in the present invention, an unmanned aerial vehicle is taken as an example for description, and further description is omitted.
Referring to fig. 1, the present invention provides an unmanned aerial vehicle 10 including a main body 11 and a retractable paddle arm assembly 12 disposed outside the main body 11. The number of the telescopic paddle arm assemblies 12 may be one or more, and when there are a plurality of the telescopic paddle arm assemblies 12, the plurality of the telescopic paddle arm assemblies 12 are uniformly distributed around the fuselage 11.
The body 11 is adapted to carry a telescopic paddle arm assembly 12. The body 11 has a box-like structure. Specifically, in the present embodiment, the body 11 is a square box. The number of the telescopic paddle arm assemblies 12 is four, and the four top corners of the machine body 11 are respectively arranged. It is understood that the body 11 may also be a rectangular box, a circular box, an oval box, or other regular or irregular shapes, and the embodiment of the present invention is not limited thereto.
The drone 10 is also provided with a power supply 13 and a PCB board (not shown in the figures). Specifically, the power supply 13 is used to provide electrical support for the drone 10. The power supply 13 is arranged on the outer side of the body 11, so that the power supply 13 is convenient to disassemble. It is understood that the power source 13 may be a lithium battery or a solar cell, etc. The PCB board is fixedly arranged in the machine body 11. The PCB board is electrically connected to a power supply 13.
It can be understood that the position of power 13 and PCB board is not restricted to locating on fuselage 11, and the position of power 13 and PCB board can also set up in other positions of unmanned aerial vehicle according to the design needs, for example, power 13 can locate in fuselage 11, perhaps, power 13 and PCB board are located in the scalable oar arm subassembly.
Also, the drone 10 may include multiple power supplies 13 or multiple PCB boards. The multiple power supplies 13 or the multiple PCB boards can be conveniently designed, facilitate layout, and avoid complex wiring.
The outer side of the fuselage 11 is also provided with a landing gear 15 for supporting the landing and landing of the drone 10. Landing gear 15 is a U-shaped structure. The two free ends of the landing gear 15 are fixedly connected with the fuselage 11, and the middle part of the landing gear 15 is used for abutting against the ground, so that the landing gear 15 can stably support the fuselage 11. It is understood that landing gear 15 may have a U-shaped structure as shown in fig. 1, a T-shaped structure, a triangular structure, etc., and embodiments of the present invention are not limited thereto.
The retractable paddle arm assembly 12 includes a first paddle arm, a second paddle arm, a gear, and a rack. The first paddle arm is fixedly connected with the gear, and the second paddle arm is fixedly connected with the rack. The gear is meshed with the rack, and when the gear rotates, the second paddle arm stretches relative to the first paddle arm through the rack.
It will be appreciated that when the retractable paddle arm assembly 12 is mounted to the body 11, one end of the first or second paddle arm may be fixedly attached to the body 11. Now, the paddle arm fixedly connected to the body 11 is a fixed paddle arm, and the other paddle arm is a telescopic paddle arm.
Specifically, in the present embodiment, the first paddle arm is fixedly connected to the body 11, and the first paddle arm is a fixed paddle arm 121. The second paddle arm is a telescoping paddle arm 122. The telescopic paddle arm 122 is connected with a power motor 16 for driving the propeller 17 to rotate.
One end of the fixed paddle arm 121 is fixedly disposed on the body 11. It is understood that the fixed paddle arm 121 and the body 11 may be integrally injection molded. The fixed paddle arm 121 is a hollow structure. Specifically, in the present embodiment, the fixed paddle arm 121 is in a square tube shape, and a cavity of the fixed paddle arm 121 is communicated with a cavity of the body 11.
The telescopic paddle arm 122 is arranged at one end of the fixed paddle arm 121 far away from the machine body 11. The telescopic paddle arm 122 is of a hollow structure, and the fixed paddle arm 121 and the telescopic paddle arm 122 are nested. That is, one end of the retractable paddle arm 122 is sleeved outside the fixed paddle arm 121, or one end of the fixed paddle arm 121 is sleeved outside the retractable paddle arm 122. And the cavity of the telescopic paddle arm 122 is communicated with the cavity of the fixed paddle arm 121. The telescopic paddle arm 122 is matched with the fixed paddle arm 121 in shape and size, and the telescopic paddle arm 122 is slidable relative to the fixed paddle arm 121. Specifically, in the present embodiment, the retractable paddle arm 122 has a square tube shape. A sliding rail is arranged between the telescopic paddle arm 122 and the fixed paddle arm 121, and the telescopic paddle arm 122 and the fixed paddle arm 121 are in sliding connection in a matching mode through the sliding rail. The slide rail can be convenient for slide between flexible oar arm 122 and fixed oar arm 121. It will be appreciated that the slide rails may be grooves or ribs. One end of the telescopic paddle arm 122 far away from the fixed paddle arm 121 is provided with a power motor 16 and a propeller 17. The power motor 16 is electrically connected to the power source 13. The power motor 16 and the propeller 17 are both positioned on the outer side of the telescopic propeller arm 122, and the power motor 16 is in driving connection with the propeller 17. The propeller 17 is detachably disposed outside the telescopic paddle arm 122. The propellers 17 include a plurality of, are the propellers 17 of a plurality of different models size respectively to the scalable oar arm subassembly 12 user demand of different length of cooperation respectively. It is understood that the fixed paddle arm 121 and the telescopic paddle arm 122 may also be in the shape of a circular tube, a cone, etc., and are not limited herein.
The power motor 16 drives the propeller 17 to rotate, and the propeller 17 drives the unmanned aerial vehicle 10 to move. It will be appreciated that the power motor 16 is electrically connected to the power supply 13 and the PCB board, and that the power supply 13 provides electrical support for the power motor 16. It is understood that the power source 13 includes a first power source. The PCB board comprises a first PCB board. The power motor 16 is electrically connected to the first power source and the first PCB.
Referring to fig. 2 and 3, the retractable paddle arm 122 is drivingly connected to the fixed paddle arm 121 through a gear 123 and a rack 124. When the gear 123 is rotated, the rack 124 moves along the gear 123, so that the retractable paddle arm 122 is retracted relative to the fixed paddle arm 121. The unmanned aerial vehicle 10 of this embodiment also includes a drive motor 19. The rotating part of the driving motor 19 is fixedly connected with the gear 123, and the fixed part of the driving motor 19 is fixedly connected with the first paddle arm. The rotating part of the driving motor 19 may be a rotating shaft or a rotor, and the fixed part of the driving motor 19 may be a motor base or a stator. And, the driving motor 19 is electrically connected to the PCB board. When the power supply 13 supplies power to the PCB, the driving motor 19 receives a Pulse Width Modulation (PWM) signal, the driving motor 19 rotates forward or backward, and the retractable paddle arm 122 can be controlled to open or close by the engagement of the gear 123 and the rack 124. Specifically, the power supply 13 further includes a second power supply, the PCB further includes a second PCB, and the driving motor 19 is electrically connected to the second power supply and the second PCB. It can be understood that the first power source and the second power source can be the same power source or different power sources, and the first PCB and the second PCB can be the same PCB or different PCBs.
Specifically, in the present embodiment, the gear 123 is fixed in the fixed paddle arm 121, and the driving motor 19 is also fixed in the fixed paddle arm 121. The driving motor 19 and the gear 123 effectively utilize the space in the fixed paddle arm 121, so as to avoid occupying the space of the body 11, and facilitate the internal arrangement of the body 11. Referring to fig. 3 to 5, one end of the rack 124 is engaged with the gear 123, and the other end of the rack 124 is fixedly connected to the inner sidewall of the retractable paddle arm 122. And, one end of the rack 124 engaged with the gear 123 can be extended from the inside of the telescopic paddle arm 122.
It is understood that the rack 124 may be fixedly connected to the inner sidewall of the telescopic paddle arm 122 by screws or bonding. Specifically, in the present embodiment, the retractable paddle arm 122 is formed by injection molding, and the rack 124 is embedded in the inner sidewall of the retractable paddle arm 122 by injection molding when the retractable paddle arm 122 is formed by injection molding. The rack 124 is connected with the telescopic paddle arm 122 through the above mode, the operation is simple and convenient, the stability of the connection of the rack 124 and the telescopic paddle arm 122 can be guaranteed, and the damage to the telescopic paddle arm assembly 12 of the unmanned aerial vehicle 10 caused by the fact that screw holes are required to be formed in the telescopic paddle arm 122 due to screw connection can be avoided.
When the gear 123 rotates, one end of the rack 124 engaged with the gear 123 moves along the gear 123, and the other end of the rack 124 is driven to extend and retract. Since the other end of the rack 124 is fixedly connected to the retractable paddle arm 122, the rack 124 drives the retractable paddle arm 122 to retract along with the other end of the rack 124.
And, the driving motor 19 may be at least one.
In one embodiment, the number of the driving motors 19 may be one or two. When there is one drive motor 19, the drive motor 19 may be disposed inside the body 11, such as in a central position of the body 11. Four gears 123 are arranged on a driving shaft of the driving motor 19, each gear 123 is in driving connection with one rack 124, and each rack 124 drives one telescopic paddle arm 122 to move telescopically. Since the four gears 123 are disposed in an overlapping manner, the four racks 124 need to be spatially offset from each other to avoid interference between the racks 124. Due to the fact that one driving motor 19 is used, the rotating speeds of the four gears 123 are enabled to be consistent, the telescopic distance of each telescopic paddle arm 122 relative to the fixed paddle arm 121 can be kept consistent, the lengths of the telescopic paddle arm assemblies 12 are enabled to be the same, and telescopic adjustment of the telescopic paddle arm assemblies 12 is facilitated. Avoid the length difference of a plurality of scalable oar arm components 12, influence unmanned aerial vehicle 10's flight.
When there are two drive motors 19, two gears 123 are provided on each drive motor 19. Each driving motor 19 drives two adjacent or opposite telescopic paddle arms 122 to be telescopic. Also, since the two gears 123 are disposed to overlap each other, the two racks 124 need to be spatially displaced from each other to avoid interference between the racks 124.
In one embodiment, the number of the driving motors 19 may be four, and the four driving motors 19 respectively drive one gear 123. One rack 124 for each gear 123, and one drive motor 19 for each retractable paddle arm assembly 12. The four driving motors 19 receive a PWM signal at the same time, the driving motors 19 rotate forward or backward, and the four telescopic paddle arms 122 can be controlled to open or close simultaneously by the engagement of the gear 123 and the rack 124. The four driving motors 19 have the same rotating speed, so that the telescopic distances of the four telescopic paddle arms 122 are ensured to be equal, and the length of the telescopic paddle arm assembly 12 is the same.
Referring to fig. 4, an avoiding groove 125 is formed at the bottom of one end of the telescopic paddle arm 122 close to the fixed paddle arm 121, and when the telescopic paddle arm 122 is contracted, the telescopic paddle arm 122 collides with the base of the driving motor 19. The escape groove 125 serves to prevent the telescopic paddle arm 122 from colliding with the driving motor 19. The shape of the avoiding groove 125 is adapted to the shape and size of the driving motor 19. When the end of the retractable paddle arm 122 close to the fixed paddle arm 121 retracts to move into the fixed paddle arm 121, as shown in fig. 5, the driving motor 19 is accommodated in the avoiding groove 125, so as to avoid interference between the retractable paddle arm 122 and the driving motor 19.
It is understood that when the length of the rack 124 is long enough and the installation position of the driving motor 19 is far enough from the telescopic paddle arm 122, the fixed paddle arm 121 and the telescopic paddle arm 122 do not need to overlap to satisfy the arm length adjustment of the telescopic paddle arm assembly, and the escape groove 125 can be omitted.
Referring to fig. 2 and 5, in the present embodiment, the unmanned aerial vehicle 10 of the present embodiment further includes a winding mechanism 18. The wire winding mechanism 18 is fixedly disposed in the fixed paddle arm 121. The wire 20 of the power motor 16 is electrically connected with the first power supply and the first PCB through the wire winding mechanism 18, and the wire winding mechanism 18 is used for winding and unwinding the wire 20 between the power motor 16 and the first power supply or between the power motor 16 and the first PCB.
Specifically, referring to fig. 6, the winding mechanism 18 includes a housing, a winding shaft and a torsion spring. One end of the wire 20 is electrically connected to the first PCB or the first power source, and the other end is electrically connected to the power motor 16. The wire 20 is wound on a reel. The reel is provided with a groove, and the lead 20 is accommodated in the groove so as to facilitate the winding of the lead 20. One torque arm of the torsion spring is fixedly connected with the shell, and the other end of the torsion spring is fixedly connected with the scroll. When the gear 123 rotates in the forward direction and the telescopic paddle arm 122 is far away from the fixed paddle arm 121, tension is applied to the wire 20, the wire 20 is stretched, the reel rotates, and the torsion spring deforms. When the gear 123 rotates reversely and the telescopic paddle arm 122 approaches the fixed paddle arm 121, the wire 20 is loosened, the torsion spring recovers elastic deformation, and the reel rotates to rewind the wire 20 on the reel. The winding mechanism 18 can timely wind and unwind the conducting wire 20, and the conducting wire 20 is prevented from winding to influence the movement of the telescopic paddle arm 122.
It is understood that in other embodiments, the second paddle arm is fixedly connected to the body 11, and then the second paddle arm is the fixed paddle arm 121, and the first paddle arm is the telescopic paddle arm 122. The telescopic paddle arm 122 is connected with a power motor 16 for driving the propeller 17 to rotate. That is, the gear 123 is fixedly disposed in the retractable paddle arm 122, one end of the rack 124 is engaged with the gear 123, and the other end of the rack 124 is fixedly connected to the inner sidewall of the fixed paddle arm 121.
Also, a driving motor 19 is fixedly provided in the telescopic paddle arm 122 to drive the gear 123. When the driving motor 19 drives the gear 123 to rotate, one end of the rack 124 meshed with the gear 123 moves along with the gear 123, and the other end of the rack 124 is driven to stretch and retract. Since the other end of the rack 124 is fixedly connected to the fixed paddle arm 121, the rack 124 drives the retractable paddle arm 122 to move closer to or away from the fixed paddle arm 121.
In other embodiments, when the driving motor 19 is fixedly disposed in the retractable paddle arm 122, an avoiding groove is formed at the bottom of the fixed paddle arm 121 near one end of the retractable paddle arm 122. The escape groove is used to prevent the fixed paddle arm 121 from colliding with the driving motor. Therefore, the avoidance groove formed in the telescopic paddle arm 122 can also prevent the fixed paddle arm 121 from interfering with the driving motor. When the length of the rack 124 is long enough and the installation position of the driving motor 19 is far enough from the fixed paddle arm 121, the fixed paddle arm 121 and the telescopic paddle arm 122 do not need to overlap, and the adjustment of the arm length of the telescopic paddle arm assembly 12 can be satisfied, and the avoidance groove can be omitted. It will be appreciated that the reeling mechanism 18 may also be fixedly arranged inside the telescopic paddle arm 122. Since the driving motor 19 is located in the retractable paddle arm 122, the driving motor 19 is electrically connected to the second power supply and the second PCB through the wire winding mechanism 18. The wire coiling mechanism 18 can also be used to reel in and out wires between the drive motor 19 and the second power supply or wires 20 between the drive motor 19 and the second PCB board. The winding mechanism 18 is provided with two reels, and the winding mechanism 18 respectively winds and retracts the wires 20 of the power motor 16 and the drive motor 19.
In the above-described unmanned aerial vehicle 10, the fixed paddle arm 121 and the retractable paddle arm 122 are drivingly connected to each other through the gear 123 and the rack 124, and the rack 124 is driven by the gear 123 to move by rotating the gear 123. Therefore, the gear 123 rotates forward and backward, and the rack 124 moves forward or backward relatively, thereby moving the retractable paddle arm 122 and the fixed paddle arm 121 closer to or farther away from each other. Therefore, the length of the paddle arm of the drone 10 may be adjusted by the gear 123 and the rack 124.
When scalable oar arm component 12 opens, can increase the distribution distance that is located the screw 17 on a plurality of flexible oar arms 122 tops, and then can match the screw 17 of different specifications for unmanned aerial vehicle 10 to form different power effect in order to satisfy different application demands. When the large-size propeller 17 is matched, the force effect of the propeller 17 can be improved, the overall efficiency of the unmanned aerial vehicle 10 is further improved, and the endurance time of the unmanned aerial vehicle 10 is prolonged.
When the retractable paddle arm assembly 12 is retracted, the volume of the drone 10 is reduced and the drone 10 is suitable for lower load situations. The telescopic paddle arm assembly 12 of the unmanned aerial vehicle 10 can be matched with the small-sized propeller 17, so that the flexibility of the unmanned aerial vehicle 10 can be improved. And, when needs carry or deposit unmanned aerial vehicle 10, make unmanned aerial vehicle 10's scalable oar arm component 12 shrink, be convenient for placing and carrying of unmanned aerial vehicle 10.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (8)
1. A telescopic paddle arm assembly is characterized by comprising a first paddle arm, a second paddle arm, a gear (123) and a rack (124), wherein the first paddle arm is fixedly connected with the gear (123), and the second paddle arm is fixedly connected with the rack (124);
the gear (123) is meshed with the rack (124), and when the gear (123) rotates, the second paddle arm is made to extend and retract relative to the first paddle arm through the rack (124);
the rotating part of the driving motor (19) is fixedly connected with the gear (123), and the fixed part of the driving motor (19) is fixedly connected with the first paddle arm;
the first paddle arm is a fixed paddle arm (121), and the fixed paddle arm (121) is fixedly connected with the machine body (11); the second paddle arm is a telescopic paddle arm (122), one end, far away from the fixed paddle arm (121), of the telescopic paddle arm (122) is provided with a power motor (16) and a propeller (17), the telescopic paddle arm (122) is connected with the power motor (16) used for driving the propeller (17) to rotate, the gear (123) is fixedly arranged in the fixed paddle arm (121), and the driving motor is fixedly arranged in the fixed paddle arm (121);
or the second paddle arm is a fixed paddle arm (121), the fixed paddle arm (121) is fixedly connected with the machine body (11), the first paddle arm is a telescopic paddle arm (122), one end, far away from the fixed paddle arm (121), of the telescopic paddle arm (122) is provided with a power motor (16) and a propeller (17), the telescopic paddle arm (122) is connected with the power motor (16) used for driving the propeller (17) to rotate, the gear (123) is fixedly arranged in the telescopic paddle arm (122), and the driving motor is fixedly arranged in the telescopic paddle arm (122);
one end of the rack (124) meshed with the gear (123) extends out of the telescopic paddle arm (122).
2. The retractable paddle arm assembly of claim 1, wherein the first paddle arm and the second paddle arm are both hollow, the gear (123) is fixed inside the first paddle arm, the rack (124) is fixed inside the second paddle arm, and the first paddle arm and the second paddle arm are nested.
3. The retractable paddle arm assembly of claim 1, wherein an avoidance slot (125) is formed at an end of the second paddle arm near the first paddle arm, the avoidance slot (125) being configured to prevent the second paddle arm from colliding with the driving motor.
4. The retractable paddle arm assembly of claim 2 or 3, wherein the number of drive motors is at least one.
5. The retractable paddle arm assembly of claim 1, further comprising a wire reeling mechanism (18), the wire reeling mechanism (18) for housing wires between the power motor (16) and any one of:
a first PCB board, a first power supply;
wherein the power motor (16) is used for driving the rotation of the propeller (17).
6. The retractable paddle arm assembly of claim 5, wherein the spooling mechanism (18) is fixedly positioned inside the first paddle arm or inside the second paddle arm.
7. The retractable paddle arm assembly of claim 5 or 6, wherein the spooling mechanism (18) is further configured to house wiring between the drive motor (19) and any of the following when the drive motor (19) is fixedly disposed within the second paddle arm:
a second PCB board and a second power supply.
8. An unmanned aerial vehicle comprising a fuselage (11), further comprising a retractable paddle arm assembly according to any of claims 1-7, the retractable paddle arm assembly being located outside the fuselage (11).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610999160.0A CN106379515B (en) | 2016-11-14 | 2016-11-14 | Scalable oar arm component and unmanned aerial vehicle |
| PCT/CN2017/109549 WO2018086496A1 (en) | 2016-11-14 | 2017-11-06 | Telescopic propeller arm assembly and unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610999160.0A CN106379515B (en) | 2016-11-14 | 2016-11-14 | Scalable oar arm component and unmanned aerial vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN106379515A CN106379515A (en) | 2017-02-08 |
| CN106379515B true CN106379515B (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610999160.0A Active CN106379515B (en) | 2016-11-14 | 2016-11-14 | Scalable oar arm component and unmanned aerial vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN106379515B (en) |
| WO (1) | WO2018086496A1 (en) |
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| EP3455129B1 (en) * | 2017-05-05 | 2022-04-06 | SZ DJI Technology Co., Ltd. | Systems and methods related to transformable unmanned aerial vehicles |
| CN107972862B (en) * | 2017-11-21 | 2020-11-17 | 歌尔科技有限公司 | Load control method and device based on unmanned aerial vehicle and unmanned aerial vehicle |
| CN107757913B (en) * | 2017-11-21 | 2020-01-07 | 歌尔科技有限公司 | Load control method and device based on unmanned aerial vehicle and unmanned aerial vehicle |
| CN108706096A (en) * | 2018-04-02 | 2018-10-26 | 夏贵荣 | A kind of holder by adjusting the movement of rotor distance controlling quadrotor drone |
| CN109606611B (en) * | 2018-12-12 | 2021-11-30 | 江苏翔龙智能装备科技有限公司 | But horn retraction formula unmanned aerial vehicle of winding electric wire |
| CN109895991B (en) * | 2018-12-12 | 2021-09-07 | 江苏科兴电器有限公司 | Foldable unmanned aerial vehicle of twine electric wire |
| CN110525629A (en) * | 2019-07-26 | 2019-12-03 | 广东工业大学 | One kind can bending unmanned plane horn and unmanned plane |
| CN111824390A (en) * | 2020-07-24 | 2020-10-27 | 浙江点辰航空科技有限公司 | Unmanned aerial vehicle with scalable wing |
| CN112357047A (en) * | 2020-11-19 | 2021-02-12 | 南京信息工程大学 | Unmanned aerial vehicle with telescopic arm variable rotor wing |
| CN112722278B (en) * | 2020-12-21 | 2023-03-31 | 空中跳动(嘉兴)科技有限公司 | Unmanned aerial vehicle convenient to dismantle equipment and be used for accurate agriculture |
| CN113060272B (en) * | 2021-05-19 | 2021-11-16 | 宜宾职业技术学院 | Unmanned aerial vehicle horn beta structure |
| CN113277075B (en) * | 2021-07-02 | 2022-10-28 | 宁波阿瑞斯自动化技术有限公司 | Collapsible many rotor unmanned aerial vehicle |
| CN113716015A (en) * | 2021-08-19 | 2021-11-30 | 航天时代飞鹏有限公司 | Four rotor unmanned aerial vehicle horn are from receive and release mechanism |
| US20240034491A1 (en) * | 2022-07-26 | 2024-02-01 | The Boeing Company | Anomaly detection via unmanned aerial drone |
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