WO2021016881A1 - 动力组件及无人飞行器 - Google Patents

动力组件及无人飞行器 Download PDF

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Publication number
WO2021016881A1
WO2021016881A1 PCT/CN2019/098428 CN2019098428W WO2021016881A1 WO 2021016881 A1 WO2021016881 A1 WO 2021016881A1 CN 2019098428 W CN2019098428 W CN 2019098428W WO 2021016881 A1 WO2021016881 A1 WO 2021016881A1
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WO
WIPO (PCT)
Prior art keywords
propeller
paddle
elastic member
rotating shaft
connecting portion
Prior art date
Application number
PCT/CN2019/098428
Other languages
English (en)
French (fr)
Inventor
梁敬天
陈鹏
李齐
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to PCT/CN2019/098428 priority Critical patent/WO2021016881A1/zh
Priority to CN201980031566.1A priority patent/CN112119008A/zh
Publication of WO2021016881A1 publication Critical patent/WO2021016881A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U30/00Means for producing lift; Empennages; Arrangements thereof
    • B64U30/20Rotors; Rotor supports
    • B64U30/29Constructional aspects of rotors or rotor supports; Arrangements thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/04Helicopters
    • B64C27/12Rotor drives
    • B64C27/14Direct drive between power plant and rotor hub
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C11/00Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/02Hub construction
    • B64C11/04Blade mountings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/32Rotors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/32Rotors
    • B64C27/46Blades
    • B64C27/473Constructional features
    • B64C27/50Blades foldable to facilitate stowage of aircraft

Definitions

  • This application relates to the technical field of aircraft, and more specifically, to a power assembly and an unmanned aerial vehicle.
  • Aircraft are generally equipped with multiple propellers as power propulsion devices.
  • the propellers mostly use claw connectors to lock the propellers, that is, first use the claws to screw into the card slot of the card seat, and then use the spring to reverse the claws. Lock the propeller in the card slot.
  • the lock paddle structures such as the jaws and the holder are relatively complicated and occupy a large space.
  • the embodiments of the present application provide a power assembly and an unmanned aerial vehicle.
  • the present application provides a power assembly, which includes a driving device, a propeller, a connecting piece, and an elastic piece.
  • the driving device includes a mounting member and a rotating shaft arranged on the mounting member.
  • the propeller is detachably mounted on the driving device, the propeller includes a hub and blades, the hub is provided with a mounting groove and a mounting hole, and the root of the blade is rotatably mounted on the In the installation slot.
  • the connecting piece connects the hub and the mounting piece.
  • the application also provides an unmanned aerial vehicle, which includes a fuselage, an arm, and a power component.
  • One end of the arm is arranged on the fuselage, and the power assembly is arranged on the end of the arm away from the fuselage.
  • the power assembly includes a driving device, a propeller, a connecting piece, and an elastic piece.
  • the driving device includes a mounting member and a rotating shaft arranged on the mounting member.
  • the propeller is detachably mounted on the driving device, the propeller includes a hub and blades, the hub is provided with a mounting groove and a mounting hole, and the root of the blade is rotatably mounted on the In the installation slot.
  • the connecting piece connects the hub and the mounting piece.
  • the present application provides another power assembly, which includes a driving device, a propeller, a connecting piece, and an elastic piece.
  • the driving device includes a mounting member and a rotating shaft arranged on the mounting member.
  • the propeller is detachably mounted on the driving device, the propeller includes a hub and blades, the hub is provided with a mounting groove and a mounting hole, and the root of the blade is rotatably mounted on the In the installation slot.
  • the connecting piece connects the hub and the mounting piece.
  • the elastic member When the blade is folded in a predetermined direction, the elastic member is in position Restore the deformed state, thereby releasing the clamping between the elastic member and the shaft; when the blade is located in other directions, the elastic member is in a deformed state to clamp the blade under the action of the blade root The rotating shaft, thereby restricting the propeller from moving along the axis of the rotating shaft.
  • the application also provides an unmanned aerial vehicle, which includes a fuselage, an arm, and a power component.
  • One end of the arm is arranged on the fuselage, and the power assembly is arranged on an end of the arm away from the fuselage.
  • the power assembly includes a driving device, a propeller, a connecting piece, and an elastic piece.
  • the driving device includes a mounting member and a rotating shaft arranged on the mounting member.
  • the propeller is detachably mounted on the driving device, the propeller includes a hub and blades, the hub is provided with a mounting groove and a mounting hole, and the root of the blade is rotatably mounted on the In the installation slot.
  • the connecting piece connects the hub and the mounting piece.
  • the rotating shaft When the propeller is combined with the driving device, the rotating shaft is inserted in the mounting hole, and the elastic member is sleeved on the rotating shaft.
  • the elastic member When the blade is folded in a predetermined direction, the elastic member is in position Restore the deformed state, thereby releasing the clamping between the elastic member and the shaft; when the blade is located in other directions, the elastic member is in a deformed state to clamp the blade under the action of the blade root The rotating shaft, thereby restricting the propeller from moving along the axis of the rotating shaft.
  • the power assembly and the unmanned aerial vehicle of the present application are connected to the propeller hub and the mounting part of the driving device through a connecting piece, and a rotating shaft is arranged on the mounting part.
  • the rotating shaft is used to penetrate the mounting hole on the propeller hub , And use the elastic member to sleeve the rotating shaft, so that the elastic member can provide clamping force to the rotating shaft under the action of the propeller root, so as to realize the propeller locking of the propeller.
  • the propeller locking structure is simple and compact, and takes up less space.
  • Fig. 1 is a schematic diagram of an assembly structure of a power assembly according to an embodiment of the present application
  • Fig. 2 is a schematic diagram of an exploded structure of the power assembly in Fig. 1;
  • Figure 3 is a schematic partial cross-sectional view of the power assembly in Figure 1;
  • FIG. 4 is a schematic diagram of the three-dimensional structure of the hub of the power assembly in FIG. 1;
  • Figure 5 is a schematic cross-sectional view of the hub of Figure 4 along the line V-V;
  • Fig. 6 is a schematic sectional view of the hub in Fig. 4 along the line VI-VI;
  • Figure 7 is a schematic cross-sectional view of the hub in Figure 4 along line VII-VII;
  • Fig. 8 is a schematic structural diagram of a blade of the power assembly in Fig. 1;
  • Fig. 9 is a schematic diagram of the structure of the elastic member of the power assembly in Fig. 1;
  • FIG. 10 is a schematic structural diagram of the two blades of the power assembly in FIG. 1 folded in the same direction, and the power assembly is in a state of unlocking the paddles;
  • FIG. 11 is a schematic structural diagram of the two blades of the power assembly in FIG. 1 when the two blades of the power assembly are fully opened and are on the same line, and the power assembly is in a state of locking the propellers;
  • Fig. 12 is a schematic structural diagram of the two blades of the power assembly in Fig. 1 when the two blades are fully opened and staggered, and the power assembly is in a state of locking the propellers;
  • FIG. 13 is a schematic structural diagram of the two blades of the power assembly in FIG. 1 folded in the same direction, and the power assembly is in a state where the propellers are locked;
  • FIG. 14 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present application.
  • power assembly 100 driving device 10, mounting member 12, fixing hole 122, rotating shaft 14, slot 142, chamfer 144, propeller 20, propeller hub 22, first propeller clamp 221, first body 2212, first end 22122, second end 22124, first side 22126, second side 22128, first boss 2214, first positioning groove 22142, limiting protrusion 2216, second paddle clip 222, second body 2222 , Second boss 2224, connecting portion 223, mounting hole 224, coupling hole 225, containing groove 226, mounting groove 227, blade 24, blade root 242, coupling portion 2421, coupling end 2422, notch end 2423, notch 2424 , The first resisting end 2425, the second resisting end 2426, the through hole 2427, the connecting portion 2428, the propeller 244, the connecting member 40, the elastic member 60, the first clamping arm 62, the first connecting end 622, the first The free end 624, the second clamping arm 64, the second connecting end 642, the second free end 644, the engaging groove 66, the
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of the features. In the description of this application, “multiple” means two or more than two, unless otherwise specifically defined.
  • connection should be interpreted broadly unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connect, or connect in one piece It can be a mechanical connection or an electrical connection.
  • It can be directly connected, or indirectly connected through an intermediate medium, and it can be a communication between two elements or an interaction relationship between two elements.
  • the present application provides a power assembly 100.
  • the power assembly 100 includes a driving device 10, a propeller 20, a connecting member 40, and an elastic member 60.
  • the driving device 10 includes a mounting member 12 and a rotating shaft 14 arranged on the mounting member 12.
  • the propeller 20 is detachably installed on the driving device 10.
  • the propeller 20 includes a hub 22 and a blade 24.
  • the hub 22 is provided with a mounting hole 224 and a mounting groove 227.
  • the root 242 of the blade 24 is rotatably installed in the mounting groove. 227 within.
  • the connecting member 40 connects the hub 22 and the mounting member 12.
  • the rotating shaft 14 passes through the mounting hole 224, and the elastic member 60 is sleeved on the rotating shaft 14, and can provide a clamping force to the rotating shaft 14 under the action of the propeller root 242.
  • the power assembly 100 of the present application is connected to the hub 22 and the mounting member 12 of the driving device 10 through the connecting member 40, and a rotating shaft 14 is arranged on the mounting member 12.
  • the rotating shaft 14 is used to penetrate the propeller In the mounting hole 224 on the hub 22, the rotating shaft 14 is sheathed by the elastic member 60, so that the elastic member 22 can provide a clamping force to the rotating shaft 14 under the action of the propeller root 242, thereby realizing the locking of the propeller 20.
  • the structure is simple and compact, and takes up less space.
  • the present application provides a power assembly 100, which includes a driving device 10, a propeller 20, a connecting member 40, and an elastic member 60.
  • the driving device 10 includes a mounting member 12 and a rotating shaft 14 arranged on the mounting member 12.
  • the propeller 20 is detachably installed on the driving device 10.
  • the propeller 20 includes a hub 22 and a blade 24.
  • the hub 22 is provided with a mounting hole 224 and a mounting groove 227.
  • the root 242 of the blade 24 is rotatably installed in the mounting groove. 227 within.
  • the connecting member 40 connects the hub 22 and the mounting member 12.
  • the elastic member 60 When the paddle 24 is folded in a predetermined direction, the elastic member 60 is in a state of restoring deformation, thereby releasing the clamping between the elastic member 60 and the shaft 14; when the paddle 24 is located in other directions, the elastic member 60 is in a deformed state so as to The root 242 clamps the rotating shaft 14 to restrict the propeller 20 from moving along the axis of the rotating shaft 14.
  • the power assembly 100 of the present application is connected to the hub 22 and the mounting member 12 of the driving device 10 through the connecting member 40, and a rotating shaft 14 is arranged on the mounting member 12.
  • the rotating shaft 14 is used to penetrate the propeller In the mounting hole 224 on the hub 22, the rotating shaft 14 is sheathed by the elastic member 60, so that the elastic member 22 can provide a clamping force to the rotating shaft 14 under the action of the propeller root 242, thereby realizing the locking of the propeller 20.
  • the structure is simple and compact, and takes up less space.
  • the driving device 10 includes a mounting member 12 and a rotating shaft 14.
  • the mounting member 12 has a substantially circular cylindrical structure.
  • One end surface of the mounting member 12 is provided with a shaft hole 121 and a fixing hole 122.
  • the shaft hole 121 penetrates the two opposite end surfaces of the mounting member 12 and is located at the center of the mounting member 12,
  • There are two holes 122 and the two fixing holes 122 are symmetrical about the center of the shaft hole 121. In some embodiments, there may be 3, 4 or more fixing holes 122, and a plurality of fixing holes 122 may be evenly distributed around the center of the shaft hole 121.
  • the rotating shaft 14 passes through the shaft hole 121 and is installed on the mounting member 12 through the shaft hole 121, and the opposite ends of the rotating shaft 14 protrude from the two end surfaces of the mounting member 12.
  • One end of the rotating shaft 14 is provided with a slot 142, the slot 142 is arranged around the circumference of the rotating shaft 14, and the slot 142 is located on the same side as the end surface of the mounting member 12 with the fixing hole 122.
  • the groove 142 is a ring-shaped groove, and the bottom surface of the groove is cut by a plane parallel to the axis of the rotating shaft 14 in an arc shape; in other embodiments, the groove 142 is parallel to the axis of the rotating shaft 14
  • the cross-section cut by the plane is "V"-shaped, rectangular, etc.
  • the end faces and side surfaces of the opposite ends of the shaft 14 are transitionally connected by a chamfer 144.
  • the chamfer 144 can be a round or a right angle. In this embodiment, the chamfer 144 is a right angle, and the inclination angle of the chamfer 144 It can be set as required.
  • the propeller 20 includes a hub 22 and blades 24 mounted on the hub 22.
  • the propeller hub 22 includes a first propeller clamp 221, a second propeller clamp 222, and a connecting portion 223.
  • the first propeller clamp 221 and the second propeller clamp 222 are spaced apart to form a mounting groove 227 ,
  • the connecting portion 223 connects the first paddle clip 221 and the second paddle clip 222.
  • the first paddle clamp 221 includes a first body 2212, a first boss 2214, and two limiting protrusions 2216.
  • the first body 2212 includes opposite first and second ends 22122 and 22124, opposite first and second sides 22126 and 22128, wherein the direction from the first end 22122 to the second end 22124 is the same as the first side 22126 to The directions of the second side 22128 cross each other, and more specifically, the two directions are perpendicular to each other.
  • the first body 2212 is roughly formed by a combination of a rectangular parallelepiped structure and two lug-shaped plate structures, wherein the two lug-shaped plate structures are respectively located on two sides of the long side of the cuboid structure.
  • the first body 2212 may also be a regular cylindrical structure, a cubic structure, or other irregular cylindrical structures, and the shape of the first body 2212 is not limited in this application.
  • the two short sides of the cuboid structure correspond to the first end 22122 and the second end 22124 respectively, and the two lug-shaped plate-shaped structures are correspondingly distributed on the first side 22126 and the second side 22128.
  • the first boss 2214 is roughly a rectangular parallelepiped structure.
  • the shape of the first boss 2214 is the same as the rectangular parallelepiped structure in the first body 2212. Match.
  • the first end 22122 and the second end 22124 of the first body 2212 respectively correspond to the two short sides of the first boss 2214.
  • the first side 22126 and the second side 22128 of the first body 2212 are respectively connected to the first boss 2214.
  • the two long sides correspond. Both long sides of the first boss 2214 are provided with arc-shaped first positioning grooves 22142.
  • the edges of the two short sides of the first boss 2214 protrude toward the second paddle clip 222 to form a limiting protrusion 2216, that is, the first end 22122 and the second end 22124 of the first body 2212 face the second paddle clip 222 protrudes to form a limit protrusion 2216.
  • the second paddle clamp 222 includes a second body 2222 and a second boss 2224.
  • the first paddle clamp 221 and the second paddle clamp 222 are arranged in parallel and spaced apart.
  • the shape of the second body 2222 matches the shape of the first body 2212, and the second body 2222 is also roughly formed by a combination of a rectangular parallelepiped structure and two lug-shaped plate structures located on both sides of the rectangular parallelepiped structure.
  • the specific structure can refer to the first body 2212, which will not be repeated here.
  • the shape of the second boss 2224 matches the shape of the first boss 2214, that is, That is, the second boss 2224 also has a rectangular parallelepiped structure, the short side of the second boss 2224 corresponds to the short side of the first boss 2214, and the long side of the second boss 2224 corresponds to the long side of the first boss 2214 .
  • Both long sides of the second boss 2224 are provided with arc-shaped second positioning grooves (not shown), and the two second positioning grooves correspond to the two first positioning grooves 22142 one to one.
  • the connecting portion 223 is located between the first paddle clip 221 and the second paddle clip 222, and the connecting portion 223 is provided in the middle of the surface of the first boss 2214 away from the first body 2212,
  • the connecting part 223 connects the first boss 2214 and the second boss 2224. It can also be understood that the connecting part 223 extends from the first boss 2214 to the second boss 2224, or the connecting part 223 extends from the second boss 2224 to the second boss 2224.
  • the width W of the connecting portion 223 is smaller than the diameter D of the rotating shaft 14.
  • the first paddle clip 221, the second paddle clip 222, and the connecting portion 223 are integrally formed.
  • first paddle clip 221 and the connecting portion 223 are integrally formed, and the free end of the connecting portion 223 is detachably connected to the second boss 2224 of the second paddle clip 222, such as screw connection, snap connection, etc. Wait.
  • second paddle clip 222 and the connecting portion 223 are integrally formed, and the free end of the connecting portion 223 is detachably connected to the first boss 2214 of the first paddle clip 221, such as screw connection, snap connection, etc. Wait.
  • the middle of the hub 22 is provided with a mounting hole 224 penetrating the first paddle clip 221, the connecting portion 223 and the second paddle clip 222, and the mounting hole 224 matches the rotating shaft 14.
  • the mounting hole 224 divides the connecting portion 223 into two symmetrical parts, which correspond to the first end 22122 and the second end 22124 respectively.
  • Two coupling holes 225 penetrating through the first paddle clamp 221 and the second paddle clamp 222 are also opened on both sides of the mounting hole 224.
  • the two coupling holes 225 are symmetrical with respect to the central axis of the mounting hole 224.
  • the two fixing holes 122 on the piece 12 match.
  • the lug-shaped plate structures on both sides of the first boss 2214 are sandwiched correspondingly to form two installation grooves 227. Both installation grooves 227 are connected to the receiving groove 226, and the installation groove 227 is also connected to the coupling hole 225 and the card groove 142 .
  • the blade 24 includes a blade root 242 and a blade 244 mounted on the blade root 242.
  • the blade 24 includes two blades 24, and the roots 242 of the two blades 24 are both clamped between the first blade clamp 221 and the second blade clamp 222, and are respectively installed on the two hubs 22.
  • the blade root 242 includes a connecting portion 2421 and a connecting portion 2428 connected to each other, and the connecting portion 2428 connects the connecting portion 2421 and the blade 244.
  • the coupling portion 2421 is substantially annular, and the coupling portion 2421 is provided with a through hole 2427.
  • the coupling portion 2421 encloses a through hole 2427, and the paddle 24 can rotate around the central axis of the through hole 2427.
  • the coupling portion 2421 includes a coupling end 2422, a notched end 2423, a first abutting end 2425, and a second abutting end 2426, which are connected end to end in turn.
  • the coupling end 2422 is connected to the coupling portion 2428, and the notched end 2423 is connected to the coupling end 2422.
  • the notched end 2423 is formed as a notch 2424 with a circular contour of the joining portion 2421, the first abutting end 2425 is opposite to the joining end 2422, and the second abutting end 2426 is opposite to the notch end 2423 and adjacent to the joining end 2422.
  • the connecting member 40 is inserted through the combining hole 225, the fixing hole 122 and the through hole 2427, and is used to connect the hub 22, the blade 24, and the mounting member 12.
  • the through hole 2427 of the coupling portion 2421 is aligned with the coupling hole 225, and the connecting member 40 is away from the first propeller clamp 221 on the side of the second propeller clamp 222 It extends into the coupling hole 225 and passes through the through hole 2427, and finally extends into the coupling hole 225 of the second paddle clip 222 and is fixed with the second paddle clip 222.
  • the paddle 24 can rotate around the connecting piece 40, and the connecting piece One end of the 40 at least partially protrudes from the surface of the first paddle clip 221 away from the second paddle clip 222, and the coupling portion 2421 is at least partially received in the first positioning groove 22142 and the second positioning groove on the corresponding side.
  • the end of the connecting member 40 protruding from the first propeller clamp 221 extends into the fixing hole 122 and is clamped, thereby realizing the combination of the propeller 20 and the driving device 10.
  • the elastic member 60 is installed in the accommodating groove 226 (that is, installed in the two installation grooves 227) and clamped on the connecting portion 223, the elastic member 60 is generally U-shaped, and the elastic member 60 includes The elastic first clamping arm 62 and the elastic second clamping arm 64.
  • the first clamping arm 62 includes a first connecting end 622 and a first free end 624 opposite to each other.
  • the second clamping arm 64 includes a second connecting end 642 and a second free end 644 opposite to each other.
  • the second connecting end 642 is connected to the first connecting end 622, and the second free end 644 is opposed to the first free end 624 at intervals.
  • the first clamping arm 62 and the second clamping arm 64 enclose an engaging groove 66, and the elastic member 60 is clamped on the connecting portion 223 and the rotating shaft 14 through the engaging groove 66.
  • the elastic member 60 is made of a metal material with good elastic properties, such as alloy steel, spring steel, and the like.
  • the elastic member 60 in the method is made of metal material, and its performance far exceeds that of a plastic jaw.
  • the existing claw-type connectors are generally designed to be larger, use more materials, and occupy more space.
  • the volume of the elastic member 60 made of metal materials in the embodiment of the present application is It can be much smaller than the plastic claw, so that the volume of the power assembly 100 can be reduced to a certain extent.
  • the elastic member 60 is clamped on the connecting portion 223 and is in a deformed state, and the two blades 24 are both located on the hub
  • the first end 22122 of the 22, specifically, the two blade roots 244 are installed in the corresponding installation groove 227 of the hub 22, and the two notches 2424 are opposite and facing the elastic member 60.
  • the through hole 2427 of the joint part 2421 and the joint hole 225 Aligned, the elastic member 60 is completely received in the accommodating groove 226 and is located between the two limiting protrusions 2216 and is clamped on the connecting portion 223.
  • the connecting member 40 is away from the first paddle clip 221 away from the second paddle clip 222 One side extends into the coupling hole 225 and passes through the through hole 2427, and finally extends into the coupling hole 225 of the second paddle clip 222 and is fixed to the second paddle clip 222.
  • the rotating shaft 14 penetrates into the mounting hole 224 from the side of the first propeller clamp 221 away from the second propeller clamp 222.
  • the chamfer 144 of the rotating shaft 14 makes the elastic member 60
  • the first clamping arm 62 and the second clamping arm 64 are stretched apart.
  • the cooperation of the blades 24, the rotating shaft 14, and the elastic member 60 may have the following conditions:
  • the two blades 24 are folded in a predetermined direction, that is, the two blades 24 are folded in the same direction on the first end 22122 of the hub 22, And when the two notches 2424 are opposite and face the elastic member 60, the notch 2424 gives the elastic member 60 a space for restoring deformation, and the elastic member 60 is in a state of restoring deformation.
  • the clamping force of the elastic member 60 by the blade root 242 is very small, or even zero.
  • the combination of the propeller 20 and the driving device 10 completely depends on the engaging force of the connecting member 40 (the engaging force of the connecting member 40 extending into the fixing hole 122 and the connecting hole 225).
  • the two notched ends 2423 can be just correspondingly pressed against the first clamping arm 62 and the second clamping arm 64, but there is no difference between the first clamping arm 62 and the second clamping arm 64.
  • the resisting force applied, or the applied resisting force is very small (no hindrance to disassembly).
  • the two notched ends 2423 are spaced apart from the first clamping arm 62 and the second clamping arm 64 by a certain distance.
  • the two blades 24 are fully expanded, and the first abutting ends 2425 of the two blades 24 are facing the elastic member 60, and the elastic member 60 is in elastic deformation. status. Specifically, the two first abutting ends 2425 respectively abut against the first clamping arm 62 and the second clamping arm 64, so that the first clamping arm 62 and the second clamping arm 64 both collide with the rotating shaft 14 and The rotating shaft 14 provides a clamping force, the two blades 244 are respectively located on opposite sides of the hub 22, and the central axes of the two blades 24 coincide.
  • the existing power assembly when the existing power assembly is in normal flight, only the elastic clamping of the circlip itself can provide sufficient lift load. If it is subjected to an unexpected situation such as an impact, the axial load will increase sharply.
  • the blades 24 of the power assembly 100 are expanded on opposite sides, the notch 2424 is not in the avoiding position, and the two first abutting ends 2425 will hinder the expansion of the first clamping arm 62 and the second clamping arm 64 (by the rotating shaft 14 spread), that is, the elastic member 60 provides extremely large axial locking force, and when the axial load is greater, the speed of the corresponding propeller 20 is higher, the centrifugal force of the blade 24 is greater, and the root 242 resists The stronger the tendency of the elastic member 60, the greater the clamping force provided by the elastic member 60 to the rotating shaft 14, which can prevent accidental loosening of the propeller 20 during flying.
  • the two blades 244 are respectively located on opposite sides of the hub 22 and respectively extend toward the first end 22122 and the second end 22124 of the hub 22, the central axis of the two blades 24 are parallel, that is, the elastic member At least one side of 60 is squeezed by the blade root 242 and deformed to clamp the connecting portion 223 and the groove 142 of the rotating shaft 14, and the clamping mechanism of the elastic member 60 is still effective.
  • the two blades 24 are folded on the second end 22124 of the hub 22 in the same direction, and the second abutting ends 2426 of the two blades 24 are both facing elastic
  • the member 60 and the two notches 2424 all face away from the elastic member 60, and the elastic member 60 is in an elastic deformation state.
  • the two second abutting ends 2426 respectively abut against the first clamping arm 62 or the second clamping arm 64, so that the first clamping arm 62 and the second clamping arm 64 both collide with the rotating shaft 14 and The rotating shaft 14 provides a clamping force, and the two blades 244 are both located on the side where the second end 22124 of the hub 22 is located.
  • the large clamping force can lock the propeller 20 on the driving device 10, and the propeller 20 is in a state that occupies the smallest space and is suitable for being stored in the flight bag. Due to the large clamping force, the propeller 20 can be locked in the driving device. On the device 10, when the user takes out the power assembly 100 from the flight bag, the propeller 20 will not be disassembled by mistake due to the large extraction force.
  • the user may forget to unfold the blade 24.
  • the blade 24 is folded in the same direction.
  • the two blades 244 are located at the first end 22122 or the second end of the hub 22. 22124.
  • the elastic member 60 is not axially loaded.
  • the blades 24 will automatically and quickly expand side by side due to centrifugal inertia, the locking mechanism will take effect immediately, and will take priority before generating a higher axial load.
  • the elastic member 60 has an axial load. After the driving device 10 rotates, the blade 24 can still be automatically and quickly deployed to the opposite side due to centrifugal inertia.
  • the outer side of the first end 22122 of the hub 22 is provided with a mark "Disassembly/Assembly" in order to prompt the user to fold the two blades 24 in the same direction on this side to carry out the operation of the propeller 20. Disassembly and assembly of the drive device 10.
  • the blades 24 of the power assembly 100 are divided into forward and reverse propellers.
  • a foolproof structure may be provided, such as a forward propeller and a reverse propeller.
  • the thickness of the root 242 is different, the distance between the mounting hole 224 of the paddle root 242 and the edge of the joint portion 2421 is different, and so on.
  • the coupling hole 225 and the mounting hole 224 are arranged at different intervals to prevent fooling, that is, the positions of the coupling holes 225 of the forward and reverse propellers are different.
  • eye-catching signs are provided on the blades 24 and the hub 22 of the propeller 20 to instruct the user to install the forward and reverse blades 24.
  • the present application also provides an unmanned aerial vehicle 1000.
  • the unmanned aerial vehicle 1000 includes a fuselage 102, an arm 104 and the power assembly 100 of any one of the above embodiments.
  • One end of the arm 104 is arranged on the fuselage 102, and the power assembly 100 is arranged on the end of the arm 104 away from the fuselage 102.
  • the UAV 1000 of the present application connects the hub 22 and the mounting member 12 of the driving device 10 through the connecting member 40, and the mounting member 12 is provided with a rotating shaft 14.
  • the shaft 14 is used to pass through the mounting hole 224 on the hub 22, and the elastic member 60 is used to sleeve the shaft 14 so that the elastic member 22 can provide clamping force to the shaft 14 under the action of the blade root 242, thereby achieving
  • the locking structure is simple and compact, and occupies a small space.
  • the "on” or “under” of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features Not in direct contact but through other features between them.
  • “above”, “above” and “above” the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or it simply means that the level of the first feature is higher than the second feature.
  • the “below”, “below” and “below” the first feature of the second feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Wind Motors (AREA)

Abstract

本申请公开一种动力组件(100),动力组件(100)包括驱动装置(10)、螺旋桨(20)、及弹性件(60)。驱动装置(10)包括转轴(14)。螺旋桨(20)包括桨叶(24)。当螺旋桨(20)与驱动装置(10)结合时,弹性件(60)套设转轴(14)上,并能够在桨叶(24)的作用下向转轴(14)提供夹持力。

Description

动力组件及无人飞行器 技术领域
本申请涉及飞行器技术领域,更具体而言,涉及一种动力组件及无人飞行器。
背景技术
飞行器一般配备有多个螺旋桨作为动力推进装置,目前,螺旋桨多采用卡爪式连接器进行锁桨,即先利用卡爪旋进卡座的卡槽,再利用弹簧反向将卡爪顶死在卡槽内进行锁桨。然而,卡爪、卡座等锁桨结构相对复杂,占用空间大。
发明内容
本申请的实施方式提供一种动力组件及无人飞行器。
本申请提供一种动力组件,所述动力组件包括驱动装置、螺旋桨、连接件、及弹性件。所述驱动装置包括安装件和设置在所述安装件上的转轴。所述螺旋桨能够拆卸地安装在所述驱动装置上,所述螺旋桨包括桨毂和桨叶,所述桨毂开设有安装槽及安装孔,所述桨叶的桨根能够转动地安装在所述安装槽内。所述连接件连接所述桨毂和所述安装件。当所述螺旋桨与所述驱动装置结合时,所述转轴穿设在所述安装孔内,所述弹性件套设所述转轴,并能够在所述桨根的作用下向所述转轴提供夹持力。
本申请还提供一种无人飞行器,所述无人飞行器包括机身、机臂、及动力组件。机臂的一端设置在所述机身上,所述动力组件设置在所述机臂的远离所述机身的一端。所述动力组件包括驱动装置、螺旋桨、连接件、及弹性件。所述驱动装置包括安装件和设置在所述安装件上的转轴。所述螺旋桨能够拆卸地安装在所述驱动装置上,所述螺旋桨包括桨毂和桨叶,所述桨毂开设有安装槽及安装孔,所述桨叶的桨根能够转动地安装在所述安装槽内。所述连接件连接所述桨毂和所述安装件。当所述螺旋桨与所述驱动装置结合时,所述转轴穿设在所述安装孔内,所述弹性件套设所述转轴,并能够在所述桨根的作用下向所述转轴提供夹持力。
本申请提供还一种动力组件,所述动力组件包括驱动装置、螺旋桨、连接件、及弹性件。所述驱动装置包括安装件和设置在所述安装件上的转轴。所述螺旋桨能够拆卸地安装在所述驱动装置上,所述螺旋桨包括桨毂和桨叶,所述桨毂开设有安装槽及安装孔,所述桨叶的桨根能够转动地安装在所述安装槽内。所述连接件连接所述桨毂和所述安装件。当所述螺旋桨与所述驱动装置结合时,所述转轴穿设在所述安装孔内,所述弹性件套设所述转轴,当所述桨叶在预定方向折叠时,所述弹性件处于恢复形变 的状态,从而解除所述弹性件与所述转轴的夹持;当所述桨叶位于其他方向时,所述弹性件处于形变状态,以在所述桨根的作用下夹持所述转轴,从而限制所述螺旋桨沿所述转轴的轴线方向运动。
本申请还提供一种无人飞行器,所述无人飞行器包括机身、机臂、及动力组件。所述机臂的一端设置在所述机身上,所述动力组件设置在所述机臂的远离所述机身的一端。所述动力组件包括驱动装置、螺旋桨、连接件、及弹性件。所述驱动装置包括安装件和设置在所述安装件上的转轴。所述螺旋桨能够拆卸地安装在所述驱动装置上,所述螺旋桨包括桨毂和桨叶,所述桨毂开设有安装槽及安装孔,所述桨叶的桨根能够转动地安装在所述安装槽内。所述连接件连接所述桨毂和所述安装件。当所述螺旋桨与所述驱动装置结合时,所述转轴穿设在所述安装孔内,所述弹性件套设所述转轴,当所述桨叶在预定方向折叠时,所述弹性件处于恢复形变的状态,从而解除所述弹性件与所述转轴的夹持;当所述桨叶位于其他方向时,所述弹性件处于形变状态,以在所述桨根的作用下夹持所述转轴,从而限制所述螺旋桨沿所述转轴的轴线方向运动。
本申请的动力组件和无人飞行器通过连接件连接桨毂和驱动装置的安装件,并在安装件上设置转轴,当螺旋桨与驱动装置结合时,利用转轴穿设在桨毂上的安装孔内,并利用弹性件套设转轴,使弹性件能够在桨根的作用下向转轴提供夹持力,从而实现对螺旋桨的锁桨,锁桨结构简单且紧凑,占用空间较小。
本申请的实施方式的附加方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本申请的实施方式的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解,其中:
图1是本申请实施方式的动力组件的组装结构示意图;
图2是图1中的动力组件的分解结构示意图;
图3是图1中的动力组件的部分剖面示意图;
图4是图1中的动力组件的桨毂的立体结构示意图;
图5是图4中的桨毂沿V-V线的剖面示意图;
图6是图4中的桨毂沿VI-VI线的剖面示意图;
图7是图4中的桨毂沿VII-VII线的剖面示意图;
图8是图1中的动力组件的桨叶的结构示意图;
图9是图1中的动力组件的弹性件的结构示意图;
图10是图1中的动力组件的两个桨叶往同一方向折叠,且动力组件处于解除锁桨状态的结构示意图;
图11是图1中的动力组件的两个桨叶完全打开并处于同一直线上,且动力组件处于锁桨状态时的结构示意图;
图12是图1中的动力组件的两个桨叶完全打开并错开,且动力组件处于锁桨状态时的结构示意图;
图13是图1中的动力组件的两个桨叶往同一方向折叠,且动力组件处于锁桨状态的结构示意图;
图14是本申请实施方式的无人飞行器的结构示意图。
主要元件符号附图说明:动力组件100、驱动装置10、安装件12、固定孔122、转轴14、卡槽142、倒角144、螺旋桨20、桨毂22、第一桨夹221、第一本体2212、第一端22122、第二端22124、第一侧22126、第二侧22128、第一凸台2214、第一定位槽22142、限位凸起2216、第二桨夹222、第二本体2222、第二凸台2224、连接部223、安装孔224、结合孔225、容置槽226、安装槽227、桨叶24、桨根242、结合部2421、结合端2422、缺口端2423、缺口2424、第一抵持端2425、第二抵持端2426、通孔2427、衔接部2428、桨翼244、连接件40、弹性件60、第一夹持臂62、第一连接端622、第一自由端624、第二夹持臂64、第二连接端642、第二自由端644、卡合槽66、无人飞行器1000、机身102、机臂104。
具体实施方式
下面详细描述本申请的实施方式,所述实施方式的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的,仅用于解释本申请,而不能理解为对本申请的限制。
在本申请的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
在本申请的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、 “连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接。可以是机械连接,也可以是电连接。可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。
请参阅图1及图2,本申请提供一种动力组件100,动力组件100包括驱动装置10、螺旋桨20、连接件40、及弹性件60。驱动装置10包括安装件12和设置在安装件12上的转轴14。螺旋桨20能够拆卸地安装在驱动装置10上,螺旋桨20包括桨毂22和桨叶24,桨毂22开设有安装孔224及安装槽227,桨叶24的桨根242能够转动地安装在安装槽227内。连接件40连接桨毂22和安装件12。当螺旋桨20与驱动装置10结合时,转轴14穿设在安装孔224内,弹性件60套设转轴14,并能够在桨根242的作用下向转轴14提供夹持力。
本申请的动力组件100通过连接件40连接桨毂22和驱动装置10的安装件12,并在安装件12上设置转轴14,当螺旋桨20与驱动装置10结合时,利用转轴14穿设在桨毂22上的安装孔224内,并利用弹性件60套设转轴14,使弹性件22能够在桨根242的作用下向转轴14提供夹持力,从而实现对螺旋桨20的锁桨,锁桨结构简单且紧凑,占用空间较小。
请继续参阅图1及图2,本申请提供一种动力组件100,动力组件100包括驱动装置10、螺旋桨20、连接件40、及弹性件60。驱动装置10包括安装件12和设置在安装件12上的转轴14。螺旋桨20能够拆卸地安装在驱动装置10上,螺旋桨20包括桨毂22和桨叶24,桨毂22开设有安装孔224及安装槽227,桨叶24的桨根242能够转动地安装在安装槽227内。连接件40连接桨毂22和安装件12。当桨叶24在预定方向折叠时,弹性件60处于恢复形变的状态,从而解除弹性件60与转轴14的夹持;当桨叶24位于其他方向时,弹性件60处于形变状态,以在桨根242的作用下夹持转轴14,从而限制螺旋桨20沿转轴14的轴线方向运动。
本申请的动力组件100通过连接件40连接桨毂22和驱动装置10的安装件12,并在安装件12上设置转轴14,当螺旋桨20与驱动装置10结合时,利用转轴14穿设在桨毂22上的安装孔224内,并利用弹性件60套设转轴14,使弹性件22能够在桨根242的作用下向转轴14提供夹持力,从而实现对螺旋桨20的锁桨,锁桨结构简单且紧凑,占用空间较小。
具体地,请参阅图2和图3,驱动装置10包括安装件12和转轴14。
安装件12大致呈圆形柱状结构,安装件12的一端面开设有轴孔121和固定孔122,其中,轴孔121贯穿安装件12相背的两个端面并位于安装件12的中心,固定孔122有两 个且两个固定孔122关于轴孔121的中心对称。在一些实施方式中,固定孔122还可以有3个、4个或者更多个,多个固定孔122可环绕轴孔121的中心均匀分布。
转轴14穿设在轴孔121中并通过轴孔121安装在安装件12上,转轴14相背的两端均凸出于安装件12的两个端面。转轴14的一端开设有卡槽142,卡槽142沿着转轴14的周向环绕设置,卡槽142位于与安装件12开设有固定孔122的端面的同侧。卡槽142为环状的沟槽,且该沟槽的底面被平行于转轴14的轴线的平面截得的截面呈弧形;在其他实施方式中,卡槽142被平行于转轴14的轴线的平面截得的截面为“V”型、长方形等。转轴14的相背的两端的端面和侧面均通过倒角144过渡连接,倒角144可以是倒圆角或者倒直角,在本实施方式中,倒角144为倒直角,倒角144的倾斜角度可以根据需要设置。
请参阅图2和图3,螺旋桨20包括桨毂22和安装在桨毂22上的桨叶24。
具体地,请参阅图4至图7,桨毂22包括第一桨夹221、第二桨夹222、及连接部223,第一桨夹221和第二桨夹222相间隔以形成安装槽227,连接部223连接第一桨夹221和第二桨夹222。
第一桨夹221包括第一本体2212、第一凸台2214、及两个限位凸起2216。
第一本体2212包括相背的第一端22122和第二端22124、相背的第一侧22126和第二侧22128,其中,第一端22122至第二端22124的方向与第一侧22126至第二侧22128的方向相互交叉,更具体的,两个方向互相垂直。第一本体2212大致由长方体结构和两个凸耳形板状结构组合形成,其中,两个凸耳形板状结构分别位于长方体结构长边的两侧。在其他实施方式中,第一本体2212也可以是规则的圆柱体结构、立方体结构、或者其他不规则的柱体结构,本申请对第一本体2212的形状不做限制。长方体结构的两个短边分别与第一端22122和第二端22124对应,两个凸耳形板状结构对应分布在第一侧22126和第二侧22128。
第一本体2212靠近第二桨夹222的一表面的中部凸出形成第一凸台2214,第一凸台2214大致呈长方体结构,第一凸台2214的形状与第一本体2212中的长方体结构相匹配。第一本体2212的第一端22122和第二端22124分别和第一凸台2214的两个短边对应,第一本体2212的第一侧22126和第二侧22128分别与第一凸台2214的两个长边对应。第一凸台2214的两个长边均设置有弧形的第一定位槽22142。
第一凸台2214两个短边的边缘均朝第二桨夹222凸出形成限位凸起2216,也即是,第一本体2212的第一端22122和第二端22124朝第二桨夹222凸出形成有限位凸起2216。
请参阅图4、图6及图7,第二桨夹222包括第二本体2222和第二凸台2224,第一桨夹221和第二桨夹222平行且间隔设置。
第二本体2222的形状与第一本体2212的形状相匹配,第二本体2222也大致由长方体 结构和位于长方体结构两侧的两个凸耳形板状结构组合形成。具体结构可以参第一本体2212,在此不再赘述。
第二本体2222靠近第一桨夹221的一表面凸出形成与第一凸台2214相对的第二凸台2224,第二凸台2224的形状与第一凸台2214的形状相匹配,也即是说,第二凸台2224也呈长方体结构,第二凸台2224的短边和第一凸台2214的短边对应,第二凸台2224的长边与第一凸台2214的长边对应。第二凸台2224的两个长边均设置有弧形的第二定位槽(图未示),两个第二定位槽与两个第一定位槽22142一一对应。
请参阅图3、图5至图7,连接部223位于第一桨夹221和第二桨夹222之间,连接部223设置在第一凸台2214的远离第一本体2212的表面的中部,连接部223连接第一凸台2214和第二凸台2224,也可以理解为连接部223自第一凸台2214延伸至第二凸台2224,或者连接部223自第二凸台2224延伸至第一凸台2214。连接部223的宽度W小于转轴14的直径D。在一些实施方式中,第一桨夹221、第二桨夹222、及连接部223一体成型。在另一些实施方式中,仅仅是第一桨夹221和连接部223一体成型,连接部223的自由端与第二桨夹222的第二凸台2224可拆卸连接,例如螺钉连接、卡接等等。在再一些实施方式中,仅仅是第二桨夹222和连接部223一体成型,连接部223的自由端与第一桨夹221的第一凸台2214可拆卸连接,例如螺钉连接、卡接等等。
请参阅图3、图4至图6,桨毂22的中部开设有贯穿第一桨夹221、连接部223及第二桨夹222的安装孔224,安装孔224与转轴14相匹配。安装孔224将连接部223分隔成对称的两个部分,该两个部分分别与第一端22122和第二端22124对应。安装孔224的两侧还开设有贯穿第一桨夹221和第二桨夹222的两个结合孔225,两个结合孔225关于安装孔224的中心轴线对称,两个结合孔225分别与安装件12上的两个固定孔122相匹配。第一凸台2214、两个限位凸起2216、及第二凸台2224围合的空间形成环形的容置槽226,容置槽226与安装孔224连通。第一凸台2214两侧的凸耳形板状结构对应夹合形成两个安装槽227,两个安装槽227均与容置槽226连通,安装槽227还与结合孔225及卡槽142连通。
请参阅图2及图8,桨叶24包括桨根242和安装在桨根242上的桨翼244。本实施方式中,桨叶24包括两个,两个桨叶24的桨根242均夹持在第一桨夹221与第二桨夹222之间,并分别安装在两个桨毂22的两个安装槽227内。
更具体地,桨根242包括相连接的结合部2421和衔接部2428,衔接部2428连接结合部2421及桨翼244。结合部2421大致呈圆环状,结合部2421开设有通孔2427,换句话说,结合部2421围成有通孔2427,桨叶24能够绕通孔2427的中心轴线转动。
结合部2421包括依次首尾相接的结合端2422、缺口端2423、第一抵持端2425、 及第二抵持端2426,其中,结合端2422连接衔接部2428,缺口端2423与结合端2422相邻,缺口端2423形成为结合部2421圆形轮廓的缺口2424,第一抵持端2425与结合端2422相背,第二抵持端2426与缺口端2423相背且和结合端2422相邻。
请结合图2、图3及图6,连接件40穿设在结合孔225、固定孔122及通孔2427中,并用于连接桨毂22、桨叶24、及安装件12。两个桨根244安装在桨毂22对应的安装槽227中时,结合部2421的通孔2427与结合孔225对准,连接件40自第一桨夹221远离第二桨夹222的一侧伸入结合孔225内并穿过通孔2427,最后伸入第二桨夹222的结合孔225并与第二桨夹222固定住,此时,桨叶24能够绕连接件40转动,连接件40的一端至少部分凸出于第一桨夹221远离第二桨夹222的表面,结合部2421至少部分收容于对应侧的第一定位槽22142和第二定位槽中。当螺旋桨20与驱动装置10结合时,连接件40的凸出于第一桨夹221的一端伸入到固定孔122中并卡紧,从而实现螺旋桨20与驱动装置10的结合。
请参阅图2和图9,弹性件60安装在容置槽226中(也即安装两个安装槽227中)并夹持在连接部223上,弹性件60大致呈U形,弹性件60包括弹性的第一夹持臂62和弹性的第二夹持臂64。
第一夹持臂62包括相背的第一连接端622和第一自由端624。第二夹持臂64包括相背的第二连接端642和第二自由端644。第二连接端642连接第一连接端622,第二自由端644和第一自由端624间隔相对。第一夹持臂62和第二夹持臂64围成有卡合槽66,弹性件60通过卡合槽66夹持在连接部223及转轴14上。弹性件60采用弹性性能良好的金属材料制成,例如合金钢、弹簧钢等等。
由于现有的卡爪式连接器中卡爪、卡座结构相对复杂,需要注塑成型,不宜采用金属制作,因此卡爪、卡座的材质一般为塑料,强度和耐用性偏低,本申请实施方式中的弹性件60采用金属材料制成,性能远超塑料卡爪的性能。同时,现有的卡爪式连接器为了保证塑料材质的卡爪具有足够强度,一般设计得较为粗大、用料和占用空间更多,本申请实施方式中金属材料制成的弹性件60的体积可以远小于塑料卡爪,从而在一定程度上能够减小动力组件100的体积。
请参阅图2、图3、图4、及图10,在螺旋桨20与驱动装置10结合之前,弹性件60夹持在连接部223上并处于恢复形变状态,两个桨叶24均位于桨毂22的第一端22122,具体地,两个桨根244安装在桨毂22对应的安装槽227中,且两个缺口2424相对且朝向弹性件60,结合部2421的通孔2427与结合孔225对准,弹性件60完全收容在容置槽226内并位于两个限位凸起2216之间并卡持在连接部223上,连接件40自第一桨夹221远离第二桨夹222的一侧伸入结合孔225内并穿过通孔2427,最后伸 入第二桨夹222的结合孔225并与第二桨夹222固定住。在螺旋桨20与驱动装置10结合时,转轴14自第一桨夹221远离第二桨夹222的一侧穿入安装孔224中,在穿入过程中,转轴14的倒角144使得弹性件60的第一夹持臂62上和第二夹持臂64被撑开,当转轴14的凸出于安装件12的一端卡合进第二桨夹222的安装孔224中时,卡槽142与容置槽226及安装槽227均连通,第一夹持臂62和第二夹持臂64部分收容在卡槽142中,此时,连接部223和转轴14收容在弹性件60的卡合槽66内,连接件40的凸出于第一桨夹221的一端伸入到固定孔122中并卡紧,从而实现螺旋桨20与驱动装置10的结合。
桨叶24、转轴14、和弹性件60三者的配合根据动力组件100的具体应用场景会有以下情况:
在动力组件100处于可拆卸状态时,请参阅图2和图10,两个桨叶24在预定方向折叠,也即是,两个桨叶24同向折叠在桨毂22的第一端22122,且两个缺口2424相对并朝向弹性件60时,缺口2424给弹性件60一个恢复形变的空间,弹性件60处于恢复形变状态。弹性件60受到桨根242的夹持力很小,甚至为零。此时,螺旋桨20与驱动装置10的结合完全依靠连接件40的卡合力(连接件40伸进固定孔122、结合孔225的卡合力)。
在需要将螺旋桨20从驱动装置10上拆卸下来时,则可以施加一个与转轴14的轴向一致的拆卸力,该拆卸力大于卡合力及动力组件100的重力即可,换言之,可以在此时朝上方用力拔螺旋桨20,即可使得螺旋桨20从驱动装置10上拆卸下来。在一些实施方式中,两个缺口端2423可刚好分别对应抵持在第一夹持臂62和第二夹持臂64上,但对第一夹持臂62和第二夹持臂64均没有施加抵持力,或施加的抵持力很小(对拆卸不产生阻碍)。在另一些实施方式中,两个缺口端2423均与第一夹持臂62和第二夹持臂64间隔有一定的距离。
在动力组件100处于正常飞行状态时,请参阅图3及图11,两个桨叶24完全展开,两个桨叶24的第一抵持端2425均朝向弹性件60,弹性件60处于弹性形变状态。具体地,两个第一抵持端2425分别与第一夹持臂62和第二夹持臂64抵触,以使第一夹持臂62和第二夹持臂64均与转轴14抵触并对转轴14提供一个夹持力,两个桨翼244分别位于桨毂22相背两侧,两个桨叶24的中心轴重合。
通常,现有的动力组件处于正常飞行时,仅靠卡簧自身的弹性卡紧就能提供足够的升力负载,如果受到冲击等意外情况,轴向负载会陡增。而本申请中,动力组件100的桨叶24对侧展开,缺口2424不处于避让位置,两个第一抵持端2425会阻碍第一夹持臂62和第二夹持臂64展开(被转轴14撑开),即,弹性件60提供极为巨大的轴 向锁紧力,且当轴向负载越大,相应螺旋桨20的转速就越高,桨叶24的离心力越大,桨根242抵住弹性件60的趋势越强,弹性件60对转轴14提供的夹持力就越大,能够防止飞形时螺旋桨20意外松脱。
请参阅图3及图12,在动力组件100在正常飞行时遇到意外情况,如突然加速或者受到冲击、撞到物体导致突然减速等,导致桨叶24的轴向负载会徒增,由于惯性力会出现一定的甩桨情况(从图11的状态变化到图12的状态)。此时,一个桨叶24的第二抵持端2426与第一夹持臂62或第二夹持臂64中的任意一个抵触,另一个桨叶24的缺口端2423朝向另一个夹持臂时,两个桨翼244分别位于桨毂22相背两侧并分别朝桨毂22的第一端22122及第二端22124延伸,两个桨叶24的中心轴平行,也即是说,弹性件60至少一侧被桨根242挤压产生形变以夹持连接部223和转轴14的卡槽142,弹性件60的夹持机制仍然生效。
在动力组件100处于收纳状态时,请参阅图3及图13,两个桨叶24同向折叠在桨毂22的第二端22124,两个桨叶24的第二抵持端2426均朝向弹性件60,两个缺口2424均朝远离弹性件60的一侧,弹性件60处于弹性形变状态。具体地,两个第二抵持端2426分别与第一夹持臂62或第二夹持臂64抵触,以使第一夹持臂62和第二夹持臂64均与转轴14抵触并对转轴14提供一个夹持力,两个桨翼244均位于桨毂22的第二端22124所在的一侧。该夹持力较大可以使得螺旋桨20锁紧在驱动装置10上,而螺旋桨20处于占用空间最小的状态,适宜收纳进飞行包内,由于该夹持力较大可以使得螺旋桨20锁紧在驱动装置10上,用户在从飞行包取出动力组件100时,不会因为取出力较大而误将螺旋桨20拆卸下来。
在一些情况下,用户可能忘记展开桨叶24,这个时候桨叶24处于同向折叠状态,请参阅图10和图13,两个桨翼244位于桨毂22的第一端22122或者第二端22124。例如,当两个桨翼244位于桨毂22的第一端22122,两个桨叶24的两个缺口2424同时朝向弹性件60并相对,此时弹性件60是没有轴向负载的。在驱动装置10旋转后,桨叶24会由于离心惯性自动快速对侧展开,锁死机制会立刻生效,且会在产生较高轴向负载之前优先生效。当两个桨翼244位于桨毂22的第二端22124,两个桨叶24的两个缺口2424同时背向弹性件60,此时弹性件60具有轴向负载。在驱动装置10旋转后,桨叶24会由于离心惯性依然能自动快速对侧展开。
在一些实施方式中,为便于用户收纳,桨毂22的第一端22122的外侧设置标志“拆/装”以便于提示用户,将两个桨叶24同向折叠在此侧可进行螺旋桨20的驱动装置10的拆装。
动力组件100的桨叶24有正桨和反桨之分,在一些实施方式中,为便于区分正桨和反 桨,防止误装,可设置有防呆结构,例如正桨和反桨的桨根242的厚度不相同、桨根242的安装孔224与结合部2421的边缘之间距离不相同等等。本实施方式中,采用结合孔225与安装孔224之间设置成不同的间距以进行防呆,也即是,正桨和反桨的结合孔225的位置不同。在另一些实施方式中,在螺旋桨20的桨叶24和桨毂22上设置有醒目的标志,以指示用户安装正桨和反桨的桨叶24。
请参阅图14,本申请还提供一种无人飞行器1000,无人飞行器1000包括机身102、机臂104及上述任意一实施例的动力组件100。机臂104的一端设置在机身102上,动力组件100设置在机臂104的远离机身102的一端。
请结合图1及图2,本申请的无人飞行器1000通过连接件40连接桨毂22和驱动装置10的安装件12,并在安装件12上设置转轴14,当螺旋桨20与驱动装置10结合时,利用转轴14穿设在桨毂22上的安装孔224内,并利用弹性件60套设转轴14,使弹性件22能够在桨根242的作用下向转轴14提供夹持力,从而实现对螺旋桨20的锁桨,锁桨结构简单且紧凑,占用空间较小。
在本申请中,除非另有明确的规定和限定,第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触,也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且,第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方,或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开,下文中对特定例子的部件和设置进行描述。当然,它们仅仅为示例,并且目的不在于限制本申请。此外,本申请可以在不同例子中重复参考数字和/或参考字母,这种重复是为了简化和清楚的目的,其本身不指示所讨论各种实施方式和/或设置之间的关系。此外,本申请提供了的各种特定的工艺和材料的例子,但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
在本说明书的描述中,参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施方式,本领域的普通技术人员可以理解:在不脱离本申请的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型, 本申请的范围由权利要求及其等同物限定。

Claims (64)

  1. 一种动力组件,其特征在于,包括:
    驱动装置,所述驱动装置包括安装件和设置在所述安装件上的转轴;
    螺旋桨,所述螺旋桨能够拆卸地安装在所述驱动装置上,所述螺旋桨包括桨毂和桨叶,所述桨毂开设有安装槽及安装孔,所述桨叶的桨根能够转动地安装在所述安装槽内;
    连接件,所述连接件连接所述桨毂和所述安装件;及
    弹性件,当所述螺旋桨与所述驱动装置结合时,所述转轴穿设在所述安装孔内,所述弹性件套设所述转轴,并能够在所述桨根的作用下向所述转轴提供夹持力。
  2. 根据权利要求1所述的动力组件,其特征在于,所述桨毂包括第一桨夹、第二桨夹和连接部,所述第一桨夹和所述第二桨夹相间隔以形成所述安装槽,所述连接部连接所述第一桨夹和所述第二桨夹,所述桨根夹持在所述第一桨夹和所述第二桨夹之间。
  3. 根据权利要求2所述的动力组件,其特征在于,所述安装件开设有固定孔;所述桨叶开设有通孔,所述桨毂还开设有结合孔,所述结合孔贯穿所述第一桨夹和所述第二桨夹并与所述安装槽连通;所述连接件穿设在所述固定孔、所述结合孔和所述通孔内,所述桨叶能够绕所述连接件转动。
  4. 根据权利要求1所述的动力组件,其特征在于,所述桨叶的数量和所述安装槽的数量均包括两个,两个所述安装槽分别位于所述桨毂的相背两侧,所述安装孔位于两个所述安装槽之间,两个所述桨叶分别安装在两个所述安装槽内。
  5. 根据权利要求4所述的动力组件,其特征在于,所述桨毂包括第一桨夹、第二桨夹和连接部,所述第一桨夹和所述第二桨夹相间隔以形成所述安装槽,所述连接部连接所述第一桨夹和所述第二桨夹,所述安装孔开设在所述第一桨夹、所述第二桨夹及所述连接部上,所述安装孔与两个所述安装槽均连通,所述弹性件收容在两个所述安装槽内并夹设在所述转轴及所述连接部上。
  6. 根据权利要求5所述的动力组件,其特征在于,所述转轴开设有卡槽,当所述转轴穿设在所述安装孔内时,所述卡槽与所述安装槽连通,当所述桨根对所述弹性件作用时,所述弹性件的一部分收容在所述卡槽内。
  7. 根据权利要求5所述的动力组件,其特征在于,所述弹性件包括弹性的第一夹持臂和弹性的第二夹持臂,所述第一夹持臂包括相背的第一连接端和第一自由端,所述第二夹持臂包括相背的第二连接端和第二自由端,所述第二连接端连接所述第一连接端,所述第二自由端和所述第一自由端相对,所述第一夹持臂和所述第二夹持臂围 成有卡合槽,当所述弹性件夹持在所述转轴及所述连接部上时,所述连接部和所述转轴均收容在所述卡合槽内。
  8. 根据权利要求7所述的动力组件,其特征在于,所述第一桨夹、所述第二桨夹和所述连接部共同形成有环形的容置槽,当所述弹性件夹持在所述转轴及所述连接部上时,所述弹性件完全收容在所述容置槽内。
  9. 根据权利要求7所述的动力组件,其特征在于,所述第一桨夹包括第一本体及两个限位凸起,所述第一本体包括相背的第一端和第二端,两个所述限位凸起分别设置在所述第一端和所述第二端上,两个所述限位凸起均位于所述第一本体的靠近所述第二桨夹的一侧;当所述弹性件夹持在所述转轴及所述连接部上时,所述弹性件位于两个所述限位凸起之间。
  10. 根据权利要求7所述的动力组件,其特征在于,所述第一桨夹包括相连接的第一本体及第一凸台,所述连接部自所述第一凸台延伸,所述第一凸台开设有两个第一定位槽,两个所述第一定位槽分别位于所述第一凸台的相背两侧,两个所述桨叶分别收容在两个所述第一定位槽内。
  11. 根据权利要求10所述的动力组件,其特征在于,所述第二桨夹包括相连的第二本体及第二凸台,所述连接部连接所述第一凸台和所述第二凸台,所述第二凸台开设有两个第二定位槽,两个所述第二定位槽分别与两个所述第一定位槽对应,两个所述桨叶分别收容在两个所述第二定位槽内。
  12. 根据权利要求7所述的动力组件,其特征在于,所述桨叶包括相连接的所述桨根和桨翼,所述桨根包括相连接的结合部和衔接部,所述衔接部连接所述结合部及所述桨翼,所述结合部上设有通孔,所述桨叶能够绕所述通孔的轴线转动,所述结合部包括相邻的结合端和缺口端,所述结合端连接所述衔接部,所述缺口端形成为所述结合部圆形轮廓的缺口。
  13. 根据权利要求12所述的动力组件,其特征在于,当两个所述桨叶的所述缺口端均朝向所述弹性件时,所述弹性件处于弹性恢复状态,两个所述桨翼均位于所述桨毂的第一端所在的一侧。
  14. 根据权利要求12所述的动力组件,其特征在于,所述桨根还包括与所述结合端相背的第一抵持端,当两个所述桨叶的所述第一抵持端均朝向所述弹性件时,所述弹性件处于弹性形变状态,两个所述第一抵持端分别与第一夹持臂和所述第二夹持臂抵触,以使所述第一夹持臂和所述第二夹持臂均与所述转轴抵触,两个所述桨翼分别位于所述桨毂相背两侧,两个所述桨叶的中心轴重合。
  15. 根据权利要求12所述的动力组件,其特征在于,所述桨根还包括与所述结合 端相接的第二抵持端,当两个所述桨叶的所述第二抵持端均朝向所述弹性件时,所述弹性件处于弹性形变状态,两个所述第二抵持端分别与所述第一夹持臂和所述第二夹持臂抵触,以使所述第一夹持臂和所述第二夹持臂均与所述转轴抵触,两个所述桨翼均位于所述桨毂的第二端所在的一侧。
  16. 根据权利要求12所述的动力组件,其特征在于,所述桨根还包括与所述结合端相接的第二抵持端,当一个所述桨叶的所述第二抵持端与所述第一夹持臂或所述第二夹持臂中的任意一个抵触,另一个所述桨叶的所述缺口端朝向另一个夹持臂时,两个所述桨翼分别位于所述桨毂相背两侧并分别朝所述桨毂的第一端及第二端延伸,两个所述桨叶的中心轴平行。
  17. 一种动力组件,其特征在于,包括:
    驱动装置,所述驱动装置包括安装件和设置在所述安装件上的转轴;
    螺旋桨,所述螺旋桨能够拆卸地安装在所述驱动装置上,所述螺旋桨包括桨毂和桨叶,所述桨毂开设有安装槽及安装孔,所述桨叶的桨根能够转动地安装在所述安装槽内;
    连接件,所述连接件连接所述桨毂和所述安装件;及
    弹性件,当所述螺旋桨与所述驱动装置结合时,所述转轴穿设在所述安装孔内,所述弹性件套设所述转轴,当所述桨叶在预定方向折叠时,所述弹性件处于恢复形变的状态,从而解除所述弹性件与所述转轴的夹持;当所述桨叶位于其他方向时,所述弹性件处于形变状态,以在所述桨根的作用下夹持所述转轴,从而限制所述螺旋桨沿所述转轴的轴线方向运动。
  18. 根据权利要求17所述的动力组件,其特征在于,所述桨叶的数量和所述安装槽的数量均包括两个,两个所述安装槽分别位于所述桨毂的相背两侧,所述安装孔位于两个所述安装槽之间,两个所述桨叶分别安装在两个所述安装槽内。
  19. 根据权利要求18所述的动力组件,其特征在于,所述桨毂还开设有贯穿的结合孔;所述桨叶包括相连接的所述桨根和桨翼,所述桨根包括相连接的结合部和衔接部,所述衔接部连接所述结合部及所述桨翼,所述结合部呈圆环状,所述结合部围成有通孔,所述连接件穿设在所述结合孔和所述通孔内,所述桨叶能够绕所述连接件转动,所述结合部包括相邻的结合端和缺口端,所述结合端连接所述衔接部,所述缺口端形成有缺口;当所述缺口端朝向所述弹性件时,所述弹性件解除对所述转轴的夹持。
  20. 根据权利要求19所述的动力组件,其特征在于,当两个所述桨叶的所述缺口端均朝向所述弹性件时,所述弹性件处于弹性恢复状态,两个所述桨翼均位于所述桨毂的第一端所在的一侧。
  21. 根据权利要求19所述的动力组件,其特征在于,所述桨根还包括与所述结合端相背的第一抵持端,当两个所述桨叶的所述第一抵持端均朝向所述弹性件时,所述弹性件处于弹性形变状态,两个所述第一抵持端分别与所述弹性件的两侧抵触,以使所述弹性件的两侧分别与所述转轴抵触,两个所述桨翼分别位于所述桨毂相背两侧,两个所述桨叶的中心轴重合。
  22. 根据权利要求19所述的动力组件,其特征在于,所述桨根还包括与所述结合端相接的第二抵持端,当两个所述桨叶的所述第二抵持端均朝向所述弹性件时,所述弹性件处于弹性形变状态,两个所述第二抵持端分别与所述弹性件的两侧抵触,以使所述弹性件的两侧分别均与所述转轴抵触,两个所述桨翼均位于所述桨毂的第二端所在的一侧。
  23. 根据权利要求19所述的动力组件,其特征在于,所述桨根还包括与所述结合端相接的第二抵持端,当一个所述桨叶的所述弹性件的任意一侧抵触,另一个所述桨叶的所述缺口端朝向所述弹性件的另一侧时,两个所述桨翼分别位于所述桨毂相背两侧,两个所述桨叶的中心轴平行。
  24. 根据权利要求19所述的动力组件,其特征在于,所述桨毂包括第一桨夹、第二桨夹和连接部,所述第一桨夹和所述第二桨夹相间隔以形成所述安装槽,所述连接部连接所述第一桨夹和所述第二桨夹,所述结合孔开设在所述第一桨夹和所述第二桨上,所述桨根夹持在所述第一桨夹和所述第二桨夹之间。
  25. 根据权利要求19所述的动力组件,其特征在于,所述安装件开设有固定孔,所述连接件穿设在所述固定孔内。
  26. 根据权利要求19所述的动力组件,其特征在于,所述桨毂包括第一桨夹、第二桨夹和连接部,所述第一桨夹和所述第二桨夹相间隔以形成所述安装槽,所述连接部连接所述第一桨夹和所述第二桨夹,所述安装孔开设在所述第一桨夹、所述第二桨夹及所述连接部上,所述安装孔与两个所述安装槽均连通,所述弹性件收容在两个所述安装槽内并夹设在所述转轴及所述连接部上。
  27. 根据权利要求26所述的动力组件,其特征在于,所述转轴开设有卡槽,当所述转轴穿设在所述安装孔内时,所述卡槽与所述安装槽连通,当所述桨根对所述弹性件作用时,所述弹性件的一部分收容在所述卡槽内。
  28. 根据权利要求24所述的动力组件,其特征在于,所述弹性件包括弹性的第一夹持臂和弹性的第二夹持臂,所述第一夹持臂包括相背的第一连接端和第一自由端,所述第二夹持臂包括相背的第二连接端和第二自由端,所述第二连接端连接所述第一连接端,所述第二自由端和所述第一自由端相对,所述第一夹持臂和所述第二夹持臂 围成有卡合槽,当所述弹性件夹持在所述转轴及所述连接部上时,所述连接部和所述转轴均收容在所述卡合槽内。
  29. 根据权利要求28所述的动力组件,其特征在于,所述第一桨夹、所述第二桨夹和所述连接部共同形成有环形的容置槽,当所述弹性件夹持在所述转轴及所述连接部上时,所述弹性件完全收容在所述容置槽内。
  30. 根据权利要求28所述的动力组件,其特征在于,所述第一桨夹包括第一本体及两个限位凸起,所述第一本体包括相背的第一端和第二端,两个所述限位凸起分别设置在所述第一端和所述第二端上,两个所述限位凸起均位于所述第一本体的靠近所述第二桨夹的一侧;当所述弹性件夹持在所述转轴及所述连接部上时,所述弹性件位于两个所述限位凸起之间。
  31. 根据权利要求28所述的动力组件,其特征在于,所述第一桨夹包括相连接的第一本体及第一凸台,所述连接部自所述第一凸台延伸,所述第一凸台开设有两个第一定位槽,两个所述第一定位槽分别位于所述第一凸台的相背两侧,两个所述桨叶分别收容在两个所述第一定位槽内。
  32. 根据权利要求31所述的动力组件,其特征在于,所述第二桨夹包括相连的第二本体及第二凸台,所述连接部连接所述第一凸台和所述第二凸台,所述第二凸台开设有两个第二定位槽,两个所述第二定位槽分别与两个所述第一定位槽对应,两个所述桨叶分别收容在两个所述第二定位槽内。
  33. 一种无人飞行器,其特征在于,包括:
    机身;
    机臂,所述机臂的一端设置在所述机身上;及
    动力组件,所述动力组件设置在所述机臂的远离所述机身的一端,所述动力组件包括
    驱动装置,所述驱动装置包括安装件和设置在所述安装件上的转轴;
    螺旋桨,所述螺旋桨能够拆卸地安装在所述驱动装置上,所述螺旋桨包括桨毂和桨叶,所述桨毂开设有安装槽及安装孔,所述桨叶的桨根能够转动地安装在所述安装槽内;
    连接件,所述连接件连接所述桨毂和所述安装件;及
    弹性件,当所述螺旋桨与所述驱动装置结合时,所述转轴穿设在所述安装孔内,所述弹性件套设所述转轴,并能够在所述桨根的作用下向所述转轴提供夹持力。
  34. 根据权利要求32所述的无人飞行器,其特征在于,所述桨毂包括第一桨夹、第二桨夹和连接部,所述第一桨夹和所述第二桨夹相间隔以形成所述安装槽,所述连 接部连接所述第一桨夹和所述第二桨夹,所述桨根夹持在所述第一桨夹和所述第二桨夹之间。
  35. 根据权利要求34所述的无人飞行器,其特征在于,所述安装件开设有固定孔;所述桨叶开设有通孔,所述桨毂还开设有结合孔,所述结合孔贯穿所述第一桨夹和所述第二桨夹并与所述安装槽连通;所述连接件穿设在所述固定孔、所述结合孔和所述通孔内,所述桨叶能够绕所述连接件转动。
  36. 根据权利要求33所述的无人飞行器,其特征在于,所述桨叶的数量和所述安装槽的数量均包括两个,两个所述安装槽分别位于所述桨毂的相背两侧,所述安装孔位于两个所述安装槽之间,两个所述桨叶分别安装在两个所述安装槽内。
  37. 根据权利要求36所述的无人飞行器,其特征在于,所述桨毂包括第一桨夹、第二桨夹和连接部,所述第一桨夹和所述第二桨夹相间隔以形成所述安装槽,所述连接部连接所述第一桨夹和所述第二桨夹,所述安装孔开设在所述第一桨夹、所述第二桨夹及所述连接部上,所述安装孔与两个所述安装槽均连通,所述弹性件收容在两个所述安装槽内并夹设在所述转轴及所述连接部上。
  38. 根据权利要求37所述的无人飞行器,其特征在于,所述转轴开设有卡槽,当所述转轴穿设在所述安装孔内时,所述卡槽与所述安装槽连通,当所述桨根对所述弹性件作用时,所述弹性件的一部分收容在所述卡槽内。
  39. 根据权利要求37所述的无人飞行器,其特征在于,所述弹性件包括弹性的第一夹持臂和弹性的第二夹持臂,所述第一夹持臂包括相背的第一连接端和第一自由端,所述第二夹持臂包括相背的第二连接端和第二自由端,所述第二连接端连接所述第一连接端,所述第二自由端和所述第一自由端相对,所述第一夹持臂和所述第二夹持臂围成有卡合槽,当所述弹性件夹持在所述转轴及所述连接部上时,所述连接部和所述转轴均收容在所述卡合槽内。
  40. 根据权利要求39所述的无人飞行器,其特征在于,所述第一桨夹、所述第二桨夹和所述连接部共同形成有环形的容置槽,当所述弹性件夹持在所述转轴及所述连接部上时,所述弹性件完全收容在所述容置槽内。
  41. 根据权利要求39所述的无人飞行器,其特征在于,所述第一桨夹包括第一本体及两个限位凸起,所述第一本体包括相背的第一端和第二端,两个所述限位凸起分别设置在所述第一端和所述第二端上,两个所述限位凸起均位于所述第一本体的靠近所述第二桨夹的一侧;当所述弹性件夹持在所述转轴及所述连接部上时,所述弹性件位于两个所述限位凸起之间。
  42. 根据权利要求39所述的无人飞行器,其特征在于,所述第一桨夹包括相连接 的第一本体及第一凸台,所述连接部自所述第一凸台延伸,所述第一凸台开设有两个第一定位槽,两个所述第一定位槽分别位于所述第一凸台的相背两侧,两个所述桨叶分别收容在两个所述第一定位槽内。
  43. 根据权利要求42所述的无人飞行器,其特征在于,所述第二桨夹包括相连的第二本体及第二凸台,所述连接部连接所述第一凸台和所述第二凸台,所述第二凸台开设有两个第二定位槽,两个所述第二定位槽分别与两个所述第一定位槽对应,两个所述桨叶分别收容在两个所述第二定位槽内。
  44. 根据权利要求39所述的无人飞行器,其特征在于,所述桨叶包括相连接的所述桨根和桨翼,所述桨根包括相连接的结合部和衔接部,所述衔接部连接所述结合部及所述桨翼,所述结合部呈圆环状,所述结合部围成有通孔,所述桨叶能够绕所述通孔的轴线转动,所述结合部包括相邻的结合端和缺口端,所述结合端连接所述衔接部,所述缺口端形成有缺口。
  45. 根据权利要求44所述的无人飞行器,其特征在于,当两个所述桨叶的所述缺口端均朝向所述弹性件时,所述弹性件处于弹性恢复状态,两个所述桨翼均位于所述桨毂的第一端所在的一侧。
  46. 根据权利要求44所述的无人飞行器,其特征在于,所述桨根还包括与所述结合端相背的第一抵持端,当两个所述桨叶的所述第一抵持端均朝向所述弹性件时,所述弹性件处于弹性形变状态,两个所述第一抵持端分别与第一夹持臂和所述第二夹持臂抵触,以使所述第一夹持臂和所述第二夹持臂均与所述转轴抵触,两个所述桨翼分别位于所述桨毂相背两侧,两个所述桨叶的中心轴重合。
  47. 根据权利要求44所述的无人飞行器,其特征在于,所述桨根还包括与所述结合端相接的第二抵持端,当两个所述桨叶的所述第二抵持端均朝向所述弹性件时,所述弹性件处于弹性形变状态,两个所述第二抵持端分别与所述第一夹持臂和所述第二夹持臂抵触,以使所述第一夹持臂和所述第二夹持臂均与所述转轴抵触,两个所述桨翼均位于所述桨毂的第二端所在的一侧。
  48. 根据权利要求44所述的无人飞行器,其特征在于,所述桨根还包括与所述结合端相接的第二抵持端,当一个所述桨叶的所述第二抵持端与所述第一夹持臂或所述第二夹持臂中的任意一个抵触,另一个所述桨叶的所述缺口端朝向另一个夹持臂时,两个所述桨翼分别位于所述桨毂相背两侧并分别朝所述桨毂的第一端及第二端延伸,两个所述桨叶的中心轴平行。
  49. 一种无人飞行器,其特征在于,包括:
    机身;
    机臂,所述机臂的一端设置在所述机身上;及
    动力组件,所述动力组件设置在所述机臂的远离所述机身的一端,所述动力组件包括
    驱动装置,所述驱动装置包括安装件和设置在所述安装件上的转轴;
    螺旋桨,所述螺旋桨能够拆卸地安装在所述驱动装置上,所述螺旋桨包括桨毂和桨叶,所述桨毂开设有安装槽及安装孔,所述桨叶的桨根能够转动地安装在所述安装槽内;
    连接件,所述连接件连接所述桨毂和所述安装件;及
    弹性件,当所述螺旋桨与所述驱动装置结合时,所述转轴穿设在所述安装孔内,所述弹性件套设所述转轴,当所述桨叶在预定方向折叠时,所述弹性件处于恢复形变的状态,从而解除所述弹性件与所述转轴的夹持;当所述桨叶位于其他方向时,所述弹性件处于形变状态,以在所述桨根的作用下夹持所述转轴,从而限制所述螺旋桨沿所述转轴的轴线方向运动。
  50. 根据权利要求49所述的无人飞行器,其特征在于,所述桨叶的数量和所述安装槽的数量均包括两个,两个所述安装槽分别位于所述桨毂的相背两侧,所述安装孔位于两个所述安装槽之间,两个所述桨叶分别安装在两个所述安装槽内。
  51. 根据权利要求50所述的无人飞行器,其特征在于,所述桨毂还开设有贯穿的结合孔;所述桨叶包括相连接的所述桨根和桨翼,所述桨根包括相连接的结合部和衔接部,所述衔接部连接所述结合部及所述桨翼,所述结合部呈圆环状,所述结合部围成有通孔,所述连接件穿设在所述结合孔和所述通孔内,所述桨叶能够绕所述连接件转动,所述结合部包括相邻的结合端和缺口端,所述结合端连接所述衔接部,所述缺口端形成有缺口;当所述缺口端朝向所述弹性件时,所述弹性件解除对所述转轴的夹持。
  52. 根据权利要求51所述的无人飞行器,其特征在于,当两个所述桨叶的所述缺口端均朝向所述弹性件时,所述弹性件处于弹性恢复状态,两个所述桨翼均位于所述桨毂的第一端所在的一侧。
  53. 根据权利要求51所述的无人飞行器,其特征在于,所述桨根还包括与所述结合端相背的第一抵持端,当两个所述桨叶的所述第一抵持端均朝向所述弹性件时,所述弹性件处于弹性形变状态,两个所述第一抵持端分别与所述弹性件的两侧抵触,以使所述弹性件的两侧分别与所述转轴抵触,两个所述桨翼分别位于所述桨毂相背两侧,两个所述桨叶的中心轴重合。
  54. 根据权利要求51所述的无人飞行器,其特征在于,所述桨根还包括与所述结 合端相接的第二抵持端,当两个所述桨叶的所述第二抵持端均朝向所述弹性件时,所述弹性件处于弹性形变状态,两个所述第二抵持端分别与所述弹性件的两侧抵触,以使所述弹性件的两侧分别均与所述转轴抵触,两个所述桨翼均位于所述桨毂的第二端所在的一侧。
  55. 根据权利要求51所述的无人飞行器,其特征在于,所述桨根还包括与所述结合端相接的第二抵持端,当一个所述桨叶的所述弹性件的任意一侧抵触,另一个所述桨叶的所述缺口端朝向所述弹性件的另一侧时,两个所述桨翼分别位于所述桨毂相背两侧,两个所述桨叶的中心轴平行。
  56. 根据权利要求51所述的无人飞行器,其特征在于,所述桨毂包括第一桨夹、第二桨夹和连接部,所述第一桨夹和所述第二桨夹相间隔以形成所述安装槽,所述连接部连接所述第一桨夹和所述第二桨夹,所述结合孔开设在所述第一桨夹和所述第二桨上,所述桨根夹持在所述第一桨夹和所述第二桨夹之间。
  57. 根据权利要求51所述的无人飞行器,其特征在于,所述安装件开设有固定孔,所述连接件穿设在所述固定孔内。
  58. 根据权利要求51所述的无人飞行器,其特征在于,所述桨毂包括第一桨夹、第二桨夹和连接部,所述第一桨夹和所述第二桨夹相间隔以形成所述安装槽,所述连接部连接所述第一桨夹和所述第二桨夹,所述安装孔开设在所述第一桨夹、所述第二桨夹及所述连接部上,所述安装孔与两个所述安装槽均连通,所述弹性件收容在两个所述安装槽内并夹设在所述转轴及所述连接部上。
  59. 根据权利要求58所述的无人飞行器,其特征在于,所述转轴开设有卡槽,当所述转轴穿设在所述安装孔内时,所述卡槽与所述安装槽连通,当所述桨根对所述弹性件作用时,所述弹性件的一部分收容在所述卡槽内。
  60. 根据权利要求56所述的无人飞行器,其特征在于,所述弹性件包括弹性的第一夹持臂和弹性的第二夹持臂,所述第一夹持臂包括相背的第一连接端和第一自由端,所述第二夹持臂包括相背的第二连接端和第二自由端,所述第二连接端连接所述第一连接端,所述第二自由端和所述第一自由端相对,所述第一夹持臂和所述第二夹持臂围成有卡合槽,当所述弹性件夹持在所述转轴及所述连接部上时,所述连接部和所述转轴均收容在所述卡合槽内。
  61. 根据权利要求60所述的无人飞行器,其特征在于,所述第一桨夹、所述第二桨夹和所述连接部共同形成有环形的容置槽,当所述弹性件夹持在所述转轴及所述连接部上时,所述弹性件完全收容在所述容置槽内。
  62. 根据权利要求60所述的无人飞行器,其特征在于,所述第一桨夹包括第一本 体及两个限位凸起,所述第一本体包括相背的第一端和第二端,两个所述限位凸起分别设置在所述第一端和所述第二端上,两个所述限位凸起均位于所述第一本体的靠近所述第二桨夹的一侧;当所述弹性件夹持在所述转轴及所述连接部上时,所述弹性件位于两个所述限位凸起之间。
  63. 根据权利要求60所述的无人飞行器,其特征在于,所述第一桨夹包括相连接的第一本体及第一凸台,所述连接部自所述第一凸台延伸,所述第一凸台开设有两个第一定位槽,两个所述第一定位槽分别位于所述第一凸台的相背两侧,两个所述桨叶分别收容在两个所述第一定位槽内。
  64. 根据权利要求63所述的无人飞行器,其特征在于,所述第二桨夹包括相连的第二本体及第二凸台,所述连接部连接所述第一凸台和所述第二凸台,所述第二凸台开设有两个第二定位槽,两个所述第二定位槽分别与两个所述第一定位槽对应,两个所述桨叶分别收容在两个所述第二定位槽内。
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