WO2019210501A1 - 螺旋桨安装结构、螺旋桨、动力套装及无人飞行器 - Google Patents

螺旋桨安装结构、螺旋桨、动力套装及无人飞行器 Download PDF

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Publication number
WO2019210501A1
WO2019210501A1 PCT/CN2018/085553 CN2018085553W WO2019210501A1 WO 2019210501 A1 WO2019210501 A1 WO 2019210501A1 CN 2018085553 W CN2018085553 W CN 2018085553W WO 2019210501 A1 WO2019210501 A1 WO 2019210501A1
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WO
WIPO (PCT)
Prior art keywords
propeller
motor
card slot
rib
mounting structure
Prior art date
Application number
PCT/CN2018/085553
Other languages
English (en)
French (fr)
Inventor
胡奔
张圣鑫
莫颂权
王坤殿
李璐鑫
于建方
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 EP18917393.3A priority Critical patent/EP3789290A1/en
Priority to PCT/CN2018/085553 priority patent/WO2019210501A1/zh
Priority to CN201880031270.5A priority patent/CN110662695A/zh
Publication of WO2019210501A1 publication Critical patent/WO2019210501A1/zh
Priority to US17/086,985 priority patent/US20210047023A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B64C27/50—Blades foldable to facilitate stowage of aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/20—Constructional features
    • B64C11/28—Collapsible or foldable blades
    • 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
    • B64U30/291—Detachable rotors or rotor supports
    • 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
    • B64U30/295—Rotors arranged in the wings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D1/108—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling
    • F16D1/112—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling the interengaging parts comprising torque-transmitting surfaces, e.g. bayonet joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/02—Hub construction
    • B64C11/04—Blade mountings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives
    • B64C27/14—Direct drive between power plant and rotor hub
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00—Propulsion; Power supply
    • B64U50/10—Propulsion
    • B64U50/19—Propulsion using electrically powered motors

Definitions

  • the present invention relates to the field of aircraft, and more particularly to a propeller mounting structure, a propeller, a power kit, and an unmanned aerial vehicle.
  • unmanned aerial vehicles usually use a motor to drive the propeller to rotate, and rely on the rotation of the propeller blades to squeeze the air, thereby driving the unmanned aerial vehicle to achieve lifting and flying operations.
  • a threaded connection can be adopted.
  • the screw connection between the nut and the motor shaft of the motor may be used to press the propeller on the motor shaft, or the shaft hole of the propeller may be made into a screw hole and screwed on the motor shaft of the motor to realize the connection.
  • the threaded fasteners may be loose, causing the propeller phenomenon and the safety is low.
  • the invention provides a propeller mounting structure, a propeller, a power package and an unmanned aerial vehicle, which can realize reliable installation and connection of the propeller, and is convenient to disassemble and assemble.
  • the present invention provides a propeller mounting structure for detachably mounting a propeller on a motor, including a mounting seat, a locking member, and an elastic member; the mounting seat is fixed to an end surface of the motor, and the mounting seat passes through the motor
  • the motor shaft, the mounting seat is for snapping with the propeller, the elastic member is connected with the locking member, and the elastic member is used for applying an elastic force to the locking member along the axial direction of the motor shaft, so that the locking member at least partially blocks the card of the propeller The direction is outward.
  • the present invention provides a propeller comprising a connection assembly for mounting on a motor shaft of a motor and at least one paddle, the blade being disposed on the connection assembly, the connection assembly including a propeller mounting structure for use with the motor Rotate the snap-fit ring connector.
  • the present invention provides a power kit comprising at least one of a propeller mounting structure as described above and a propeller as described above and a motor coupled to the motor by a propeller mounting structure.
  • the present invention provides an unmanned aerial vehicle comprising a body and at least one power kit as described above, the body comprising a frame and an arm coupled to the frame, the power set being disposed on the arm.
  • the propeller mounting structure, propeller, power pack and unmanned aerial vehicle of the present invention are used to detachably mount the propeller on the motor.
  • the propeller mounting structure specifically includes a mounting seat, a locking member and an elastic member; the mounting seat is fixed on an end surface of the motor, and the mounting seat passes through a motor shaft of the motor, the mounting seat is used for rotating and engaging with the propeller, and the elastic member and the locking member are connected And the elastic member is configured to apply an elastic force to the locking member along the axial direction of the motor shaft so that the locking member is at least partially disposed outside the engaging direction of the propeller.
  • the propeller can be relatively fixed by the rotation and the motor, and the connection is relatively reliable, and the propeller phenomenon can be effectively avoided; at the same time, the disassembly and assembly is relatively simple.
  • FIG. 1 is a schematic view showing a connection structure of a propeller mounting structure and a motor according to Embodiment 1 of the present invention
  • Figure 2 is a partial structural schematic view of the propeller mounting structure of Figure 1;
  • Figure 3 is a front elevational view showing the connection structure of the propeller mounting structure and the motor according to the first embodiment of the present invention
  • Figure 4 is a partial structural schematic view of the propeller mounting structure of Figure 3;
  • Figure 5 is a side view showing the connection structure of the propeller mounting structure and the motor according to the first embodiment of the present invention
  • FIG. 6 is a top plan view showing a connection structure of a propeller mounting structure and a motor according to Embodiment 1 of the present invention
  • FIG. 7 is a schematic structural view of another propeller mounting structure according to Embodiment 1 of the present invention.
  • Figure 8 is a front elevational view of a propeller according to a second embodiment of the present invention.
  • Figure 9 is a plan view of a propeller according to a second embodiment of the present invention.
  • Figure 10 is a top plan view of a propeller according to a second embodiment of the present invention.
  • Figure 11 is a partial schematic view of the portion of the connecting assembly of Figure 10;
  • connection assembly 12 is a schematic structural view of a connection assembly according to Embodiment 2 of the present invention.
  • Figure 13 is a schematic view showing the connection of the upper clamping member and the blade in the connecting assembly provided by the second embodiment of the present invention.
  • Figure 14 is an exploded view of a propeller according to a second embodiment of the present invention.
  • Figure 15 is a schematic view showing the installation of the blade provided in the second embodiment of the present invention.
  • 16 is a schematic structural view of a propeller according to a second embodiment of the present invention when the blade is folded;
  • connection component 17 is a schematic structural diagram of another connection component according to Embodiment 2 of the present invention.
  • FIG. 18 is a schematic structural view of a power package according to Embodiment 3 of the present invention.
  • FIG. 19 is a schematic structural view of a motor in the power pack of FIG. 18.
  • FIG. 1 is a schematic view showing a connection structure of a propeller mounting structure and a motor according to a first embodiment of the present invention.
  • 2 is a partial structural schematic view of the propeller mounting structure of FIG. 1.
  • Fig. 3 is a front elevational view showing the connection structure of the propeller mounting structure and the motor according to the first embodiment of the present invention.
  • 4 is a partial structural schematic view of the propeller mounting structure of FIG. 3.
  • Fig. 5 is a side view showing the connection structure of the propeller mounting structure and the motor according to the first embodiment of the present invention.
  • Fig. 6 is a top plan view showing the connection structure of the propeller mounting structure and the motor according to the first embodiment of the present invention. As shown in FIG. 1 to FIG.
  • the propeller mounting structure provided in this embodiment is used for detachably mounting the propeller on the motor 10.
  • the propeller mounting structure specifically includes a mounting seat 1, a locking member 2 and an elastic member 3; the mounting seat 1 is fixed to an end surface of the motor 10, and the mounting seat 1 passes through a motor shaft 20 of the motor 10, and the mounting seat 1 is used for rotating with the propeller
  • the elastic member 3 and the locking member 2 are connected, and the elastic member 3 is used to apply an elastic force to the locking member 2 in the axial direction of the motor shaft 20 so that the locking member 2 is at least partially disposed outside the engagement direction of the propeller.
  • the propeller mounting structure can be used to achieve a connection between the propeller and the motor 10 of the UAV.
  • the motor 10 of the unmanned aerial vehicle can drive the propeller to rotate, so that the upward lift can be generated when the propeller rotates, thereby driving the unmanned aerial vehicle to achieve flight and take-off and landing operations.
  • an unmanned aerial vehicle may have a plurality of propellers, and accordingly, there are generally a plurality of propeller mounting structures, and the number of propeller mounting structures is the same as the number of propellers.
  • the motor 10 In order to drive the rotation of the propeller, the motor 10 generally includes a stator, a rotor, a motor shaft 20, and the like, wherein the motor shaft 20 may protrude from one end surface of the motor 10.
  • the motor shaft 20 can be fixedly coupled to the side end surface of the motor 10 such that the motor shaft 20 and the end surface on the motor 10 rotate relative to the body of the motor 10.
  • the propeller can be connected with the propeller mounting structure and the rotatable end surface of the motor 10, and rotates along with the end surface, and at the same time, the motor shaft 20 is passed through the structure of the propeller hub and the propeller. Positioning. In this way, a relatively reliable power transmission structure can be formed between the motor 10 and the propeller, thereby adapting to a larger driving torque or a higher rotational speed.
  • the propeller mounting structure includes a mounting seat 1 fixed on the end surface of the motor 10, and the mounting seat 1 is movable.
  • the attached locking member 2 and the elastic member 3 for driving the locking member 2 against the mounting seat 1 are configured.
  • the mounting seat 1 is fixed on the end surface of the motor 10, so that when the end surface of the motor 10 rotates, the mounting seat 1 also rotates synchronously to drive the propeller to rotate.
  • the mount 1 is generally of a hollow structure such that the mount 1 can be secured to the motor 10 through the motor shaft 20 of the motor 10 such that the motor shaft 20 can extend beyond the outside of the mount 1 and position the propeller.
  • the mount 1 is usually provided with a structure such as a projection or a card slot, and is capable of rotationally engaging with the propeller.
  • the propeller can be fixed to the motor 10 from the axial direction.
  • the propeller mounting structure further includes the locking member 2 and the elastic member 3, and relies on the elastic force of the elastic member 3 to make the locking member 2 abut against the propeller capable of locking the propeller.
  • the locking member 2 can be nested with the mounting seat 1, for example, the locking member 2 is disposed in the hollow cavity of the mounting seat 1, or the locking member 2 is also a hollow structure. And surrounding the outside of the mount 1. Since the mounting seat 1 is provided with a structure of a protrusion or a card slot that can be rotated and engaged with the propeller, a relative displacement between the locking member 2 and the mounting seat 1 can be achieved to move to the same axial height as the protrusion or the card slot.
  • the position of the propeller is such that when the engaging structure of the propeller is fixed to the mounting seat 1 by means of rotational engagement, the locking member 2 can be blocked by the protrusion or the outside of the slot by its own structure, so that the engaging structure of the propeller is The locking member 2 is blocked from being detached from the position where the projection or the card slot is engaged, thereby locking the propeller in the engaged position, completing the relative fixing between the propeller and the mounting seat 1.
  • the locking member 2 can generally move along the axial direction of the motor shaft 20, thereby blocking the position of the propeller outside the protrusion or the card slot; or moving to a different axial position from the protrusion or the card slot to be released Lock the limit of the propeller.
  • the locking member 2 is located at a different axial position from the protrusion or the card slot, at this time, since the protrusion on the mounting seat 1 or the outside of the card slot is not blocked by the locking member 2, the card with the propeller can be normally The structure is rotated and engaged, or is disengaged from the engagement structure of the propeller.
  • the mounting seat 1 can usually be provided with a recess or a structure such as a cavity to prevent the locking member 2 from moving. Structural interference occurs between the time and the mount 1. At this time, the locking member 2 can pass through the groove or the escape cavity and straddle the both sides of the mounting seat 1 in the radial direction of the motor shaft 20, thereby simultaneously achieving locking on the opposite sides of the mounting seat 1.
  • the locking member 2 should be maintained in a position to lock the engaging structure of the propeller so that the propeller is held in the engaged position to prevent the engaging structure of the propeller from being disengaged from the mounting seat.
  • the locking member 2 can usually be held in this position by the elastic force of the elastic member 3.
  • the elastic direction of the elastic member 3 is also along the axial direction of the motor shaft 20, for example, facing away from the motor. The direction of the end face.
  • the locking member 2 can be abutted or fixed to the outside of the engaging direction of the propeller on the mounting seat 1 by the elastic force of the elastic member 3, so that the propeller is restricted by the locking member 2 at a position to be engaged with the mounting seat 1, and Unable to escape from the engaged position.
  • the elastic member 3 may be disposed at a position close to the central portion of the mount 1, for example, coaxially with the motor shaft 20, or at a position close to the rotary engaging structure on the mount 1.
  • the engaging direction of the propeller is along the circumferential direction of the motor shaft 20 of the motor 10 and opposite to the rotating direction of the rotor of the motor 10.
  • the elastic member 3 will move the locking member 2 in the axial direction of the motor shaft 20 by its own elastic force, and after the locking member 2 is moved to the proper position in the axial direction of the motor shaft 20, it will be blocked.
  • the outer side of the propeller in the direction of its own rotation so that the propeller cannot be disengaged from the mount 1 from this direction.
  • the propeller and the propeller mounting structure are connected by means of rotary snapping, on the one hand, the connection is relatively reliable, and on the other hand, the disassembly and replacement operation of the propeller is facilitated.
  • the propeller in order to achieve a rotational engagement with the mount 1, the propeller generally also has a snap-fit structure that fits the mount 1 and is generally located at the hub of the propeller. In this way, the propeller can achieve a rotational engagement with the mount 1 by its own snap-fit structure.
  • the lock member 2 positions the propeller from the circumferential direction of the propeller, and thus the propeller can be fixed together by the mount 1 and the lock member 2 at a position to be engaged with the mount 1 . Therefore, the propeller can be fixed with respect to the end surface of the motor 10. When the motor 10 rotates, the propeller can be rotated accordingly, while ensuring that it is securely and securely fixed to the motor 10.
  • the propeller mounting structure may have a plurality of different structural forms, which are described in detail below.
  • the mounting seat 1 may be a ring member disposed outside the motor shaft 20, and the mounting seat 1 is circumferentially disposed with at least one first holding member 11 for rotating with the propeller Engage.
  • the mounting seat 1 is a ring member
  • the motor shaft 20 of the motor 10 passes through the space in the center of the mounting seat 1, and the mounting seat 1 usually has an annular inner wall or an outer wall, so that the locking structure of the propeller is also a ring shape.
  • the circumferential sliding relative to the motor shaft 20 can be achieved by contacting the inner wall or the outer wall of the mounting seat 1, so that at least one of the holding members disposed along the circumferential direction of the mounting seat 1 can be rotated and engaged with the propeller. , or rotate away from the engaged state.
  • the mount 1 is a ring member and the propeller can be circumferentially slid by contact with the inner wall or the outer wall of the mount 1, the first retainer 11 protrudes from the mount as an alternative embodiment.
  • the snap-fit structure on the propeller is enclosed on the outer side of the annular mount 1, so that the first retaining member 11 protruding from the outer wall of the mount 1 can be engaged with the outer snap-fit structure.
  • the first retaining member 11 is protruded from the outer wall of the mounting seat 1 as an example for description.
  • the first holding member 11 can protrude inward from the inner wall of the mounting seat 1.
  • the mounting seat 1 is disposed around the outer side of the locking structure of the propeller, and is engaged with the inner snap-fit structure.
  • the second holding member also protrudes from the inner wall of the mounting seat 1 and is engaged with the locking structure of the propeller inside the mounting seat 1.
  • the number of the first holding members 11 may be one or more.
  • the mounting base 1 may be provided with at least two first holding members 11 And at least two first holding members 11 are spaced apart. In this way, when the mounting seat 1 realizes the rotation engagement, the plurality of first holding members 11 can achieve the limit engagement on the propeller at different parts of the mounting seat 1. When the locking is engaged, the mounting seat 1 is relatively dispersed and can withstand Larger torque.
  • the plurality of first holding members 11 may be disposed symmetrically with respect to the axial direction of the motor shaft 20 .
  • the torque can be uniformly transmitted to the respective first holding members 11 so that the force of the mounting seat 1 in all directions in the circumferential direction is relatively balanced, and the mounting seat is improved. 1 structural reliability.
  • all of the first retaining members 11 may be located at the same height of the mount 1 in the axial direction. Since all of the first holding members 11 are located at the same height of the mounting seat 1, the first holding members 11 together form an engaging surface at the same height in the circumferential direction of the mounting seat 1.
  • the propeller and the mount 1 can be relatively slid and rotated by the engaging surface to rotate to a position where they are engaged with each other.
  • the propeller may have a snap-fit structure protruding in a radial direction thereof, and correspondingly, the first retainer 11 may form a first extending along the circumferential direction of the mount 1
  • the card slot 111 has a first card slot 111 for rotationally engaging with the engaging structure.
  • the engaging structure on the propeller may protrude outward or inward along the radial direction of the propeller, and correspondingly, the first retaining member 11 on the mounting seat 1 also protrudes inwardly from the mounting seat 1
  • the inner wall of the inner wall protrudes outwardly from the outer wall of the mount 1.
  • the first latching member 11 can form a first latching slot 111 extending along the circumferential direction of the mounting base 1.
  • the extending direction of the first latching slot 111 is perpendicular to the axial direction of the propeller, so that the engaging structure of the propeller can be moved to The position of the drive shaft coincides with the mounting seat 1 in the axial direction, and the engaging structure is rotated to engage the engaging structure into the first card slot 111 and to engage with the first card slot 111.
  • the first card slot 111 circumferentially surrounds an axial position outside the motor shaft 20, and the self-groove wall is used to limit the engaging structure on the propeller to the position relative to the motor shaft 20.
  • the first card slot 111 usually has a stop structure, so that when the engaging structure of the propeller moves along the first slot 111, it can be stopped at a certain circumferential angle with respect to the mounting seat 1. Thereby the positioning of the propeller in the axial direction is achieved.
  • first slots of different sizes may be disposed on the different first holding members.
  • the first card slots 111 are different in size, and may be different in the outer edge or the inner edge radius of the first card slot 111.
  • the engaging structure on the propeller is mounted on the propeller mounting structure, since the first engaging slot 111 is engaged with the engaging structure, the first slot of different sizes is also correspondingly engaged on the engaging structure of the propeller. Parts of different sizes.
  • the first slots of different sizes can be located in different directions and positions according to the different directions of rotation of the propeller, and when the propeller is rotated in the wrong direction, for example, the positive propeller (CW) and the propeller mounting structure for installing the reverse propeller (CCW).
  • CW positive propeller
  • CCW propeller mounting structure for installing the reverse propeller
  • the first card slot 111 can be a one-way card slot, one side of the extending direction is a notch, and the other side of the extending direction is a groove bottom for stopping the engaging structure.
  • the engaging structure of the propeller extends from the slot of the first slot 111, it can slide along the extending direction of the first slot 111 until it abuts against the slot bottom of the first slot 111.
  • the first card slot 111 can also be a two-way card slot. At this time, the first holding member 11 and the first card slot 111 are only used along the motor.
  • the shaft 20 constrains the propeller in the axial direction
  • the locking member 2 constrains the propeller in the radial direction of the motor shaft 20.
  • the first card slot 111 can have various forms and structures.
  • the first card slot 111 may have a double-sided groove wall, or the first card slot 111 may also include only one side groove wall, and the other position limiting structure limits the axial position of the propeller relative to the mounting seat 1.
  • the first card slot 111 includes a first rib 1111 on the first retaining member 11.
  • the first rib 1111 extends circumferentially along the mounting seat 1, the propeller and the first card slot. When the 111 is rotated and engaged, the first rib 1111 is located on the side of the engaging structure away from the motor 10.
  • the first rib 1111 can form one side groove wall of the first card slot 111.
  • the first rib 1111 is blocked on one side of the engaging structure to avoid The propeller is detached from the side along with the snap-fit structure.
  • the first rib 1111 can sandwich the engaging structure together with other structures on the other side of the engaging structure, such as the motor 10 or the structure on the mounting seat 1, to limit the engaging structure in the axial direction of the transmission shaft. The location on the top.
  • the first card slot 111 further includes a second rib 1112 connected to the first rib 1111.
  • the second rib 1112 is located at one end of the first rib 1111 and protrudes along the axial direction of the motor shaft 20, The second rib 1112 is for limiting the rotation angle of the engaging structure in the first card slot 111.
  • the second rib 1112 protrudes from the first rib 1111 so as to be disposed on the rotation path of the engaging structure, so that the engaging structure is rotated to the second rib 1112, and the second rib The rib 1112 abuts and stops rotating. At this time, the engaging structure can be restricted by the second rib 1112 at the current rotation angle, thereby completing the engagement with the mounting seat 1.
  • each second rib 1112 is located at the same end of the corresponding first rib 1111.
  • the notches of each of the first slots 111 are oriented on the same side with respect to the first slot 111. Therefore, when the engaging structure on the propeller is engaged with the first slot 111, the propeller is only opposite to the mounting 1
  • the engagement can be completed in the same direction in the circumferential direction, for example, clockwise or counterclockwise. Since the first card slot 111 has a directionality in the circumferential direction, the different orientations of the first card slots 111 can be used to distinguish the propeller directions provided on the mount 1.
  • the first card slot 111 can be used to mount the positive paddle (CW); and when the mounting seat 1 is viewed from the top, the slot of the first card slot 111 When the port is facing counterclockwise, the first card slot 111 can be used to mount the reverse paddle (CCW).
  • the propeller is in different directions such as positive propeller or reverse propeller, the engaging structure on the propeller will also be different, and can only be rotated and engaged with the corresponding first slot 111, thereby facilitating the direction of the propeller. make a distinction to achieve foolproof operation.
  • the mounting seat 1 Since the first rib 1111 is only disposed on the side of the propeller engaging structure facing away from the motor 10, the mounting seat 1 has an abutting portion protruding away from the motor 10, and the resisting portion is used for resisting propeller.
  • the side of the propeller engaging structure facing the motor 10 can be resisted by the abutting portion to prevent the propeller from continuing to move toward the motor 10, and the first rib 1111 prevents the propeller from moving in a direction away from the motor 10, thus resisting
  • the first rib and the first rib 1111 jointly sandwich the engaging structure of the propeller to achieve axial positioning of the propeller.
  • the abutting portion may be the end surface 12 of the mounting seat 1 facing away from the motor 10 side.
  • the end faces are generally annular faces and are thus capable of resisting the propeller in various directions circumferentially of the motor shaft 20 and together with the first rib 1111 enclose the axial positioning of the propeller.
  • the locking member 2 can generally be moved relative to the mounting seat 1 to lock or unlock the first retaining member 11 to allow the engaging portion of the propeller to be engaged or to prevent the engaging portion of the propeller from coming out of the engaged position.
  • the mounting seat 1 may be provided with a groove 13 having a shape and a size matching the locking member 2, and the locking member 2 is located in the groove 13 and movable in the axial direction of the motor shaft 20.
  • the first retaining member 11 is usually located at an axial position on the mounting seat 1, the locking member 2 is axially moved along the motor shaft 20 and is located in a different axial direction relative to the first retaining member 11.
  • the position is, for example, located at the same axial position as the first retaining member 11 and is blocked outside the engaging structure of the propeller or away from the first retaining member 11 so that the engaging structure of the propeller can smoothly A card holder 11 is disengaged from engagement.
  • the notch of the groove 13 can be opened toward the motor 10, so that the locking member 2 can be fixedly fixed by the groove 13 and the end surface of the motor 10, and the positioning structure is relatively simple.
  • the locking member 2 can also have at least one stop portion 21 for stopping at the notch of the first card slot 111.
  • the stopper portion 21 has a plurality of portions and is spaced apart in the circumferential direction of the lock member 2.
  • each of the stopping portions 21 can stop at the notch of a corresponding first engaging slot 111, thereby preventing the propeller from being disengaged from the first engaging slot 111.
  • the radial distance between the stop portion 21 and the axis of the motor shaft 20 and the first card holder can generally be the same.
  • the stopper portion 21 and the first catching member 11 are both located on the same cylindrical surface that surrounds the outside of the motor shaft 20.
  • the stop portion 21 stops between the adjacent two first holding members 11. At this time, each of the stopper portions 21 can be inserted into the gap between the adjacent two first holding members 11 and stopped at the notch of the corresponding first holding member 11. In this way, the stop portion 21 can be arranged by the gap between the adjacent first holding members 11 , thereby effectively saving space; on the other hand, the stopping portion 21 can also be supported by the adjacent first holding member 11 . And limit structure to improve the reliability of the stop.
  • the stopping portion 21 stops at the notch of the first card slot 111, the stopping portion 21 and the first holding member 11 abut each other.
  • the stopping portion 21 can be closely abutted against the first holding member 11 by the elastic force of the elastic member 3, thereby achieving the stopping and locking of the first engaging groove 111.
  • the stopping portion 21 may only abut the corresponding first holding member 11 , or may be corresponding to the corresponding first holding member 11 and another first holding member adjacent to the first holding member 11 .
  • the piece 11 simultaneously achieves abutment.
  • the stopper portion 21 is provided with a second wedge-shaped surface 211 matching the first wedge-shaped surface 112, the elastic force of the stopper portion 21 at the elastic member 3 and the first wedge-shaped surface
  • the first wedge surface 112 and the second wedge surface 211 abut each other to limit the position of the stopping portion 21 with respect to the notch of the first card slot 111.
  • the elastic force applied by the elastic member 3 to the locking member 2 is away from the end surface of the motor 10, so that the first holding member 11b adjacent to the first holding member 11a forming the first card slot 111 can be disposed.
  • There is a downwardly inclined first wedge surface 112 such that when the stopping portion 21 moves axially toward the first holding member 11, the second wedge surface 211 on the stopping portion 21 abuts against the first wedge surface 112 and Fit it to the wedge. Since the first wedge surface 112 and the second wedge surface 211 are pressed against each other, the first holding member 11b having the first wedge surface 112 applies the first card slot toward the stopper portion 21 toward the first holder 11a.
  • the component of the notch of the 111 is pressed against the notch of the first slot 111 to complete the snap-locking of the propeller.
  • the elastic direction of the elastic member 3 is generally along the axial direction of the motor shaft 20, correspondingly, one end of the elastic member 3 can be fixed relative to the motor, and the other end is connected with the locking member 2, so that the locking member 2 is The elastic force of the elastic member 3 is moved in the axial direction of the motor shaft 20 to a position that can block outside the slot of the first card slot 111, so that the user can close the notch of the first card slot 111 by moving the position of the locking member 2. Or open.
  • the locking member 2 further has a hand-held portion 22 projecting outward in the radial direction of the motor shaft 20.
  • the user can apply the hand-held portion 22 to apply a force along the axial direction of the motor shaft 20 to the locking member 2 as a whole, and the direction of the force is opposite to the elastic force of the elastic member 3, so that the user can pass to the hand-held portion 22 A force is applied to cancel the elastic force of the elastic member 3, and the locking member 2 is moved in the axial direction of the motor shaft 20 to complete the locking and opening of the first card slot 111.
  • the elastic member 3 when the external force is not applied by the user, the elastic member 3 is in a natural pressure state, and the locking member 2 is fixed at a position blocking the outside of the slot of the first card slot 111 by its own elastic force;
  • the locking member 2 can move in the axial direction of the motor shaft 20 against the elastic force of the elastic member 3, and is moved from the position blocked outside the slot of the first card slot 111.
  • Open so that the propeller can be loaded into the propeller mounting structure or taken out by the propeller mounting structure; when the propeller is installed or disassembled, the hand-held portion 22 can be released, so that the locking member 2 is under the elastic force of the elastic member 3.
  • the number of the hand-held portions 22 may be an even number and symmetrically disposed with respect to the motor shaft 20. In this way, the user can press the symmetrical hand-held portion 22 with the finger, so that the notch of the first card slot 111 is opened, so that the fast loading and unloading of the propeller can be conveniently performed.
  • the hand portion 22 is located in the recess 13 .
  • the hand portion 22 can directly protrude from the inside of the recess 13, and the structure of the locking member 2 is relatively simple.
  • FIG. 7 is a schematic structural view of another propeller mounting structure according to Embodiment 1 of the present invention.
  • the hand-held portion 22 of the propeller mounting structure may also be provided with an anti-slip structure to improve the frictional force when the user grips the hand-held portion 22 and prevent the user from slipping.
  • the anti-slip structure may be a non-slip 221 or a non-slip bump on the surface of the hand portion 22.
  • the elastic member 3 in the propeller mounting structure may be one end and The end faces of the motor 10 are connected, and the other end is connected to the locking member 2.
  • the elastic member 3 can be supported by the end surface of the motor 10, and the locking member 2 is biased away from the motor 10.
  • the direction of the force applied by the elastic member 3 to the locking member 2 is as described in the foregoing embodiment, and details are not described herein again.
  • the elastic member 3 and the motor shaft 20 can be kept coaxial.
  • the elastic member 3 may be a hollow structure, and the motor shaft 20 is located in the hollow structure of the elastic member 3, or the elastic member 3 may be plural, and the plurality of elastic members 3 are symmetrically disposed about the motor shaft 20.
  • the elastic member 3 can have various possible structural forms.
  • the resilient member 3 can be a spring.
  • the spring is generally helical and thus can be sleeved outside of the motor shaft 20 and disposed coaxially with the motor shaft 20.
  • the elastic member 3 can be a tower spring with one end larger and the other end smaller, so that when the elastic member 3 is compressed, the smaller end can be pressed down to the inside of the larger end, thereby effectively reducing The space occupied by the elastic member 3.
  • the elastic member 3 may be a reducer spring.
  • the elastic member 3 is composed of a spring wire whose wire diameter gradually changes.
  • the bearing capacity can be deformed by a portion having a small wire diameter; and when the impact force is large, the force can be transmitted through a portion having a large wire diameter.
  • the elastic member 3 can have a sensitive reaction, and under a large pressure, it has a large elastic force, thereby achieving reliable deformation of the elastic member 3.
  • the propeller mounting structure is used to detachably mount the propeller on the motor.
  • the propeller mounting structure specifically includes a mounting seat, a locking member and an elastic member; the mounting seat is fixed on an end surface of the motor, and the mounting seat passes through a motor shaft of the motor, the mounting seat is used for rotating and engaging with the propeller, and the elastic member and the locking member are connected And the elastic member is configured to apply an elastic force to the locking member along the axial direction of the motor shaft, so that the locking member is at least partially disposed outside the engaging direction of the propeller.
  • Figure 8 is a front elevational view of a propeller according to a second embodiment of the present invention.
  • Figure 9 is a plan view of a propeller according to a second embodiment of the present invention.
  • Figure 10 is a top plan view of a propeller according to a second embodiment of the present invention.
  • Figure 11 is a partial schematic view of the portion of the connecting assembly of Figure 10.
  • FIG. 12 is a schematic structural diagram of a connection assembly according to Embodiment 2 of the present invention.
  • Figure 13 is a schematic view showing the connection of the upper clamping member and the blade in the connecting assembly provided by the second embodiment of the present invention.
  • Figure 14 is an exploded view of a propeller according to a second embodiment of the present invention.
  • Figure 15 is a schematic view showing the installation of the blade provided in the second embodiment of the present invention.
  • Figure 16 is a schematic view showing the structure of a propeller according to a second embodiment of the present invention when the blade is folded.
  • the propeller provided in this embodiment specifically includes at least one paddle 4 and a connecting component 5 for mounting on the motor shaft 20 of the motor 10 , and the paddle 4 is disposed on the connecting component 5 ,
  • the connection assembly 5 includes an annular connection for rotational engagement with a propeller mounting structure on the motor 10.
  • the propeller includes one or more blades, and the blades 4 are generally symmetrically disposed about the rotation axis of the propeller itself.
  • the connecting assembly 5 is for mounting on the motor shaft 20 of the motor 10 to connect the motor 10 and the blades 4.
  • the connecting assembly 5 includes an annular connecting member 51 for rotationally engaging with a propeller mounting structure on the motor 10, the annular connecting member 51 is generally disposed coaxially with the axis of the propeller, and the annular connecting member 51 generally has a raised or concave shape.
  • the slots 13 and the like are engaged to rotate and snap together with respect to the propeller mounting structure on the motor 10.
  • the number of the blades 4 may be two, and the two blades are symmetrically arranged, so that the propeller can provide a certain lift with a small number of blades, and the structure is relatively simple.
  • the propeller includes two blades as an example for description.
  • the propeller mounting structure in the first embodiment may be the same as the propeller mounting structure in the first embodiment, and may also be other connecting structures capable of implementing the rotary snapping function, which is not limited herein.
  • the annular connecting member 51 may have an annular wall 511 and at least one second holding member 512 circumferentially disposed along the annular wall 511, and the second holding member 512 is used for the propeller mounting structure. Rotate the snap.
  • the annular connecting member 51 can also have an annular wall 511 for achieving rotational sliding.
  • the second retaining member 512 can be an outer wall that projects outwardly from the annular wall 511.
  • the mounting seat 1 may be located outside the annular connecting member 51; or, the second holding member 512 may protrude inwardly from the inner wall of the annular wall 511, at this time,
  • the ring assembly can be snap-fitted with the propeller mounting structure located on the inside.
  • the number of the first holding members 11 may be one or more.
  • the mounting base 1 may be provided with at least two first holding members 11 And at least two first holding members 11 are spaced apart. In this way, when the mounting seat 1 realizes the rotation engagement, the plurality of first holding members 11 can achieve the limit engagement on the propeller at different parts of the mounting seat 1. When the locking is engaged, the mounting seat 1 is relatively dispersed and can withstand Larger torque.
  • the annular connecting member 51 may be provided with at least two second holding members 512, and at least two second holding members 512 are spaced apart.
  • the plurality of second retaining members 512 can be at different portions of the annular connecting member 51 and the propeller The limit engagement is achieved between the mounting structures, so that the annular connecting member 51 is relatively dispersed and can withstand large moments.
  • the second holding member 512 when the second holding member 512 is plural, the second holding member 512 can also be symmetric with respect to the axial center of the annular connecting member 51, thereby uniformly transmitting the torque to the respective second holding members 512.
  • the force of the annular connecting member 51 in all directions in the circumferential direction is relatively balanced, and the structural reliability is improved.
  • all of the second holding members 512 may also be located at the same height in the axial direction of the annular connecting member 51.
  • all of the second holding members 512 can form an annular surface similar to that formed by the first holding member 11 of the first embodiment, so that the propeller and the propeller mounting structure can be relatively slid and rotated by the engaging surfaces.
  • the annular surface can be engaged with the annular surface formed by the first clamping surface.
  • the annular connecting member 51 and the mounting seat 1 in the propeller mounting structure can be relatively rotated and resisted by the two annular surfaces. High reliability.
  • the propeller mounting structure is provided with a snap-fit structure protruding along the radial direction of the motor shaft 20, and the second latching member 512 can also form a second latching slot 5121 extending along the circumferential direction of the annular connecting member 51.
  • the second card slot 5121 is for rotationally engaging with the engaging structure.
  • the second card slot 5121 will circumferentially surround an axial position outside the motor shaft 20, and the engagement structure on the propeller is also restricted to the position relative to the motor shaft 20 by its own slot wall.
  • the second card slot 5121 generally has a stop structure, such that the first card slot 111 can limit the propeller mounting structure to a certain circumferential angle with respect to the annular connecting member 51, thereby achieving axial direction of the propeller. Positioning.
  • the engaging structure on the propeller mounting structure may have various structures, such as the first card slot 111 formed in the first embodiment, or other engaging members that can be matched with the second card slot 5121. Therefore, for example, the second card slot 5121 can also be in various forms.
  • the second card slot 5121 can have a double-sided slot wall, or only one side slot wall, or other cards commonly used by those skilled in the art. Structure and so on.
  • the structure of the second card slot 5121 can be mirror image structure with the card slot in the first embodiment.
  • the second card slot 5121 can include a third rib 5122 on the second latching member 512.
  • the third rib 5122 extends along the circumferential direction of the annular connecting member 51.
  • the engaging structure and the second card slot 5121 rotate the card.
  • the third rib 5122 is located on the side of the engaging structure adjacent to the motor 10, so that the second card slot 5121 can limit the engaging structure in the propeller mounting structure to the axial direction of the motor shaft 20 by using the third rib 5122. A location on the top.
  • the card slot may further include a fourth rib 5123 connected to the third rib 5122.
  • the fourth rib 5123 is located at one end of the third rib 5122 and protrudes in the axial direction of the annular connecting member 51, and the fourth rib. 5123 is used to limit the rotation angle of the engaging structure in the second card slot 521.
  • the fourth rib 5123 also protrudes from the third rib 5122, thereby blocking the rotation of the propeller mounting structure.
  • the fourth rib 5123 abuts and stops rotating.
  • the propeller mounting structure can be replaced by the fourth rib.
  • the 5123 is limited to the current angle of rotation to complete the engagement with the annular link 51.
  • each of the fourth ribs 5123 is located at the same end of the corresponding third rib 5122.
  • the notches of each of the second slots 5121 are oriented on the same side with respect to the second slot 5121. Therefore, when the propeller mounting structure is engaged with the second card slot 5121, the propeller can only be engaged in the same direction in the circumferential direction relative to the propeller mounting structure, for example, clockwise or counterclockwise, but not in the other direction. Rotate or cannot be engaged while rotating. Since the second card slot 5121 has a similar directivity as the aforementioned first card slot 111, the different orientations of the second card slot 5121 can be used to distinguish the propeller direction.
  • the propeller when looking up the annular connecting member 51 and the notch of the second card slot 5121 is oriented clockwise, the propeller is the reverse paddle (CCW); and when looking up the ring connecting member 51 and the slot of the second card slot 5121 When the mouth is facing counterclockwise, the propeller is now a positive paddle (CW).
  • the second card slot 5121 may be mirrored or complementary to the first card slot 111.
  • the propeller and the propeller mounting structure are rotationally engaged together, the third rib 5122 and the second slot on the second card slot 5121 The first rib 1111 on one of the card slots 111 is correspondingly fitted, and the fourth rib 5123 is abutted with the second rib 1112 on the first card slot 111. In this way, if the direction corresponding to the propeller and propeller mounting structure is different, the engagement cannot be completed, and thus the directional design facilitates the distinction between the directions of the propellers and achieves a foolproof operation.
  • the ring connector 51 may be provided with a bushing 513 for connection with the motor shaft 20 of the motor 10.
  • the sleeve 513 is sleeved outside the motor shaft 20 so that the motor shaft 20 can be coupled to the motor shaft 20 to prevent the motor shaft 20 from pulsing when rotated.
  • the edge of the shaft hole of the sleeve 513 may have a chamfer.
  • the chamfering of the edge of the shaft hole has a certain guiding effect on the motor shaft 20, and the edge of the motor shaft 20 can be prevented from cutting the shaft hole.
  • the chamfered edge of the shaft hole edge may have a size of 0.5 mm x 45°.
  • the annular connector 51 may alternatively be There is a second abutting portion 514 protruding toward the motor 10, and the second abutting portion 514 is for axially abutting the propeller mounting structure from the motor shaft 20 of the motor 10. At this time, the second abutting portion 514 can cooperate with the third rib 5122 to sandwich the corresponding portion of the propeller mounting structure, thereby achieving relative fixation of the propeller and the propeller mounting structure in the axial direction of the motor shaft 20.
  • the second holding member 512 on the annular connecting member 51 is generally plural and surrounds the annular connecting member 51 in the circumferential direction, in order to balance the force with each of the second holding members 512, an optional
  • the two abutting portions 514 may be disposed in a crisscross shape on the inner side of the annular connecting member 51.
  • the second abutting portion 514 is symmetrical with respect to the center of the annular connecting member 51. Therefore, in any direction in the circumferential direction, the annular connecting member 51 can be abutted and fixed with the propeller mounting structure, and the force is relatively balanced.
  • the second abutting portion 514 may have other structures and shapes, for example, may be a ring edge protruding from the annular wall 511 of the annular connecting member 51, or other resisting structures commonly used by those skilled in the art, etc. I won't go into details here.
  • the annular connecting member 51 may be provided with a clamping portion 515, and the root of the blade 4 is fixed on the clamping portion 515.
  • the clamping portion 515 can fix the blade 4 from one side of the root of the blade 4.
  • the clamping portion 515 can be fixed to the blade 4 by snapping or screwing, or use other structures. The pieces together fix the blade 4.
  • connection assembly 5 can also include an upper clamping member 52 for gripping the root of the blade 4 with the clamping portion 515.
  • the upper clamping member 52 and the clamping portion 515 of the connecting component 5 can respectively clamp the blade 4 from the upper and lower sides of the root of the blade 4, thereby forming a structure similar to the paddle, such that the blade 4 That is, the motor shaft 20 can be fixed in the axial direction, and the frictional force between the upper clamping member 52 and the clamping portion 515 or the limiting structure can be used to fix the connecting member 5 in the circumferential direction.
  • the blade 4 is held in a certain radial direction with respect to the connecting assembly 5 so that the blade 4 can be positioned using the connecting assembly 5.
  • the upper clamping member 52 can be connected by a plurality of connection methods and the lower clamping portion 515.
  • the upper clamp 52 and the annular joint 51 can be joined by a threaded fastener 53. This allows the user to easily disassemble the blade 4 while ensuring that the blade 4 can be securely mounted.
  • the upper clamping member 52 may be provided with at least one boss 521 parallel to the motor shaft 20 , and the boss 521 is provided with a threaded hole on the ring connecting member 51 .
  • a mounting hole 516 corresponding to the threaded hole is provided, and the threaded fastener 53 can be inserted into the threaded hole through the mounting hole 516 to connect the upper clamping member 52 and the annular connecting member 51.
  • the threaded fastener 53 is installed from the bottom to the top, and the upper clamping member 52 and the lower annular connecting member 51 are connected.
  • the top surface of the upper clamping member 52 does not need to be threaded, so that it is relatively clean and tidy. Good degree.
  • the blades 4 will generally have a relatively long length, in which case the blades 4 of the propeller will have a larger diameter, which is inconvenient for the transportation and storage of the propeller and the unmanned aerial vehicle.
  • the paddles 4 and the connecting assembly 5 may be rotatably connected. In this way, when the plurality of blades on the propeller are not in use, they can be rotated to a similar or overlapping position, so that the entire propeller is folded to reduce the overall occupied space of the propeller.
  • the blades 4 can generally be rotated relative to the connecting assembly 5 in a horizontal plane.
  • the root of the blade 4 has a pin hole 41, and the blade 4 can be rotated around the pin hole 41 to rotate to a folded state or a working state.
  • the root of the paddle 4 can be inserted into a pin or the like and form a rotary hinge with the connecting member 5.
  • the connecting assembly 5 further includes a pin hole.
  • the first positioning hole 522 is correspondingly disposed on the upper clamping member 52
  • the second positioning hole 5151 is correspondingly disposed on the clamping portion 515.
  • the positions of the first positioning hole 522 and the second positioning hole 5151 are mutually Correspondingly, at this time, by adjusting the root position of the blade 4, the first positioning hole 522, the second positioning hole 5151, and the pin hole 41 of the root of the blade 4 can be adjusted to a coaxial position, so that the positioning member sequentially passes through the first A positioning hole 522, a pin hole 41 and a second positioning hole 5151 are provided to fix the connecting assembly 5 and the paddle 4 together. Since the first positioning hole 522, the second positioning hole 5151 and the pin hole 41 are rotatably connected with the positioning member, the positioning member can also fix the blade 4 relative to the positioning member while fixing the blade 4. Rotate to rotate to a folded state in which the different blades are close to each other, or an operating state in which the distance between different blades is maximized.
  • the positioning member may be at least one of a pin, a plug screw or a threaded fastener, or may be other structures commonly used by those skilled in the art, and is not limited herein.
  • the second positioning holes 5151 may alternatively be at least one of a light hole, a threaded hole or a counterbore.
  • the second positioning hole 5151 may be a threaded hole and directly locked with the thread of the plug screw.
  • the second positioning hole 5151 may also be a countersunk hole and used to fix a plug screw or a threaded fastener or the like. At this time, the countersunk hole can be filled with a threaded fastener, or a nut matched with the plug screw can be inserted.
  • the second positioning hole 5151 when the second positioning hole 5151 is a countersunk hole, a sleeve for preventing looseness may be disposed at a step in the hole, and the sleeve is usually made of a plastic material or the like.
  • the positioning member when the positioning member is a pin, the second positioning hole 5151 can be a light hole with a uniform aperture, and the matching connection between the second positioning hole 5151 can be realized by the size matching of the pin.
  • the positioning member is used as an example of the pin 54 as an example.
  • the first positioning hole 522 and the pin 54 may be an interference fit.
  • the diameter of the pin 54 is slightly larger than the diameter of the first positioning hole 522, so that the pin 54 can be relatively firmly positioned in the first positioning hole 522.
  • the fit between the pin 54 and the pin hole 41 of the paddle 4 can generally be a transition fit to enable the paddle 4 to smoothly switch between the folded state and the operating state while ensuring its and pin 54 during rotation. There is no relative rotation between them.
  • the pin 54 can be inserted into the first position.
  • the diameter of one end of the hole 522 is larger than the diameter of the remaining portion of the pin shaft 54, so that the fixing of the pin shaft 54 can be ensured, and the paddle 4 can be freely switched between the folded state and the operating state.
  • FIG. 17 is a schematic structural diagram of another connection component according to Embodiment 2 of the present invention. As shown in FIG.
  • the positioning member is a threaded fastener 53a
  • the upper clamping member 52 and the annular connecting member 51 are connected by a positioning member, that is, a threaded fastener 53a; at this time, due to the positioning member
  • the position of the connection point between the upper clamping member 52 and the annular connecting member 51 is such that the torque of the positioning member due to the thrust of the propeller is small, and the positioning member and the corresponding structure can be prevented from being cracked due to excessive stress. phenomenon.
  • the portion of the positioning member that cooperates with the shaft hole 41 of the blade 4 has a smooth outer wall so that the blade 4 can freely rotate relative to the threaded fastener 53a without being affected by the thread.
  • the blade 4 When the propeller is operated at high speed, the blade 4 may be subjected to high frequency vibration due to the impact of the airflow. At this time, the vibration of the blade 4 may cause damage to the connection assembly 5, or the root of the blade 4 may be removed from the connection assembly 5. Loose on.
  • the upper clamping member 52 may specifically include a body having a cavity and a cushion 523 disposed in the cavity, and the first positioning hole 522 is disposed on the cushion 523. on.
  • the cushion 523 may be disposed on one side or the upper and lower sides of the blade. The specific arrangement may be determined according to requirements. In this embodiment, one side of the blade facing the upper clamping member 52 and the upper clamping member are away from the upper clamping member. A cushion 523 is provided on one side of the 52 for explanation.
  • the number of the blades 4 is generally plural, the number of the cavities can be the same as the number of the blades 4.
  • each of the blades corresponds to at least one independent cushion 523, and thus the cushion 523 has a better vibration damping effect.
  • the cushion 523 may alternatively be a silicone rubber pad or other resilient material.
  • the blade 4 When the blade 4 is folded, since the blade 4 generally has a large contact area with the upper clamping member 52 or the clamping portion 515, in order to reduce the friction between the blade 4 and the connecting assembly 5 portions,
  • the blade 4 can be folded or unfolded relatively smoothly, optionally between at least one of the upper clamping member 52 and the root of the blade 4, and between the clamping portion 515 and the root of the blade 4
  • the gasket 6 can provide a relatively smooth surface, thereby helping to reduce the friction between the joint assembly 5 and the blade 4, enabling the blade 4 to be smoothly folded or unfolded while reducing the surface of the blade 4 while rotating. abrasion.
  • the gasket 6 is typically a smooth wear member, that is, a material that has a low coefficient of friction and is relatively wear resistant.
  • the gasket 6 is a Teflon gasket. Teflon material, also known as PTFE, has low friction and excellent wear resistance. Therefore, when the surface of the gasket 6 is in contact with the blade 4, the blade 4 can be lubricated and the friction generated. Smaller, the rotation of the blade 4 is smoother.
  • At least one limiting portion may be disposed on the upper clamping member 52, and the 524 limiting portion is used to limit the paddles 4 The angle of rotation.
  • the propeller includes two blades, and when the two blades are folded, they will each rotate around the axis until they are moved closer.
  • a plurality of limiting portions 524 are disposed on the upper clamping member 52, and the limiting portion 524 is disposed at a position between the two blade roots, so that the blade 4 rotates to the pre- When the angle is set, the side of the blade 4 will collide with the limiting portion 524 and cannot continue to rotate. At this time, the two blades 4 will maintain a certain distance under the limit of the limiting portion 524, thereby avoiding The phenomenon of mutual touch.
  • two limiting portions 524 can be provided corresponding to each of the blades, and the two limiting portions 524 are respectively disposed on both sides of the rotation direction of the blades 4 .
  • the two limiting portions 524 can respectively limit the blades 4.
  • the limiting portion 524 can also have a plurality of different structures.
  • the stop portion is disposed on the bottom surface of the upper clamp member 52 and projects toward the motor 10.
  • the limiting portion 524 has a relatively simple structure and a small size while achieving a normal limit.
  • the limiting portion may be a structure such as a protrusion or a positioning post.
  • the connecting component 5 may have a similar structure to realize the paddles. The connection and fixing between the two are not repeated here.
  • the propeller specifically includes at least one blade and a connection assembly for mounting on a motor shaft of the motor, the blade is disposed on the connection assembly, and the connection assembly includes a rotation engagement with the propeller mounting structure on the motor. Ring connector.
  • FIG. 18 is a schematic structural diagram of a power package according to Embodiment 3 of the present invention.
  • the power kit 300 of the present embodiment includes at least one of the propeller mounting structure 100 of the first embodiment and the propeller 200 of the second embodiment, and further includes a motor 10.
  • the propeller 200 is coupled to the electric machine 10 by a propeller mounting structure 100.
  • the specific structure, working principle and function of the propeller mounting structure 100 and the propeller 200 have been described in detail in the foregoing embodiments, and are not described herein again.
  • the propeller 200 can be connected to the power package 300 by the rotation of the propeller mounting structure 100 or the propeller 200.
  • the propeller 200 is fixed and is not easily released from the propeller mounting structure 100 during high-speed rotation. , effectively avoiding the phenomenon of shooting.
  • the motor shaft 20 of the motor 10 may have a chamfer a at the end.
  • the chamfer a may be formed by first pouring an oblique angle and then pouring out the rounded corner.
  • the end of the motor shaft 20 of the motor 10 is less likely to cause scratches on the structure on the propeller 200.
  • the power package includes at least one of a propeller mounting structure and a propeller, and the motor is coupled to the motor through the propeller mounting structure.
  • the propeller can be quickly disassembled by means of a rotating engagement and a motor, and the connection is relatively reliable, and the propeller phenomenon can be effectively avoided.
  • the fourth embodiment of the present invention further provides an unmanned aerial vehicle comprising a machine body and at least one power package according to the third embodiment.
  • the machine body comprises a frame and an arm connected to the frame, and the power package is disposed on the arm.
  • a plurality of arms can be connected to the body of the UAV, and a power kit is disposed on each arm.
  • the propeller in the power pack can cut the air by spinning, which in turn generates enough lift to drive the UAV to take off and land and normal flight.
  • different propellers may have different directions of rotation in order to ensure normal flight of the UAV.
  • the steering of the motor is usually different.
  • the orientation of the engaging structure on the propeller in one of the power sets, the orientation of the first slot in the propeller mounting structure, and the direction of rotation of the propeller and the propeller mounting structure when rotating and engaging are on the other power pack. s difference.
  • the unmanned aerial vehicle includes a body and at least one power package, the body includes a frame and an arm connected to the frame, and the power package is disposed on the arm; wherein the power package includes a propeller mounting structure and a propeller At least one and the motor, the propeller is coupled to the motor via a propeller mounting structure.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种螺旋桨安装结构（100）、与之相配合的螺旋桨（200）、包含该螺旋桨安装结构（100）与螺旋桨（200）的动力套装（300）以及无人飞行器，其中，螺旋桨安装结构（100）用于将螺旋桨（200）可拆卸地安装在电机（10）上，其包括安装座（1）、锁定件（2）和弹性件（3）；安装座（1）固定于电机（10）的端面上，且穿过电机（10）的电机轴（20），用于与螺旋桨（200）旋转卡合；弹性件（3）与锁定件（2）连接，用于沿电机轴（20）的轴向向锁定件（2）施加弹力，以使锁定件（2）至少部分挡设在螺旋桨（200）的卡合方向外侧。该螺旋桨安装结构（100）能够实现螺旋桨（200）的可靠安装连接，且拆装简便。

Description

螺旋桨安装结构、螺旋桨、动力套装及无人飞行器 技术领域
本发明涉及飞行器领域，尤其涉及一种螺旋桨安装结构、螺旋桨、动力套装及无人飞行器。
背景技术
随着科技的不断发展，无人飞行器等自控设备越来越多的出现在人们的工作和生活中。
目前，无人飞行器通常利用电机驱动螺旋桨转动，并依靠螺旋桨桨叶的旋转挤压空气，从而带动无人飞行器实现升降和飞行操作。其中，为了将螺旋桨固定在电机的电机轴上，可以采用螺纹连接的方式。具体的，可以采用螺母和电机的电机轴的螺纹连接将螺旋桨压紧在电机轴上，也可以是将螺旋桨的轴孔制成螺纹孔，并旋合在电机的电机轴之上实现连接。
然而，目前的螺旋桨连接方式，螺纹紧固件可能会产生松动，造成射桨现象，安全性较低。
发明内容
本发明提供一种螺旋桨安装结构、螺旋桨、动力套装及无人飞行器，能够实现螺旋桨的可靠安装连接，且拆装较为简便。
第一方面，本发明提供一种螺旋桨安装结构，用于将螺旋桨可拆卸的安装在电机上，包括安装座、锁定件和弹性件；安装座固定于电机的端面上，且安装座穿过电机的电机轴，安装座用于和螺旋桨旋转卡合，弹性件和锁定件连接，且弹性件用于沿电机轴的轴向向锁定件施加弹力，以使锁定件至少部分挡设在螺旋桨的卡合方向外侧。
第二方面，本发明提供一种螺旋桨，包括用于安装在电机的电机轴上的连接组件和至少一个桨叶，桨叶设置在连接组件上，连接组件包括用于和电机上的螺旋桨安装结构旋转卡合的环形连接件。
第三方面，本发明提供一种动力套装，包括如上所述的螺旋桨安装结构和如上所述的螺旋桨中的至少一者以及电机，螺旋桨通过螺旋桨安装结构连接至电机上。
第四方面，本发明提供一种无人飞行器，包括机体和至少一个如上所述的动力套装，机体包括机架和与机架连接的机臂，动力套装设置在机臂上。
本发明的螺旋桨安装结构、螺旋桨、动力套装及无人飞行器，螺旋桨安装结构用于将螺旋桨可拆卸的安装在电机上。该螺旋桨安装结构具体包括安装座、锁定件和弹性件；安装座固定于电机的端面上，且安装座穿过电机的电机轴，安装座用于和螺旋桨旋转卡合，弹性件和锁定件连接，且弹性件用于沿电机轴的轴向向锁定件施加弹力，以使锁定件至少部分挡设在螺旋桨的卡合方向外侧。这样螺旋桨能够通过旋转卡合的方式和电机实现相对固定，同时连接较为可靠，能够有效避免射桨现象；同时拆装较为简便。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例一提供的螺旋桨安装结构和电机的连接结构示意图；
图2是图1中的螺旋桨安装结构的局部结构示意图；
图3是本发明实施例一提供的螺旋桨安装结构和电机的连接结构正视图；
图4是图3中螺旋桨安装结构的局部结构示意图；
图5是本发明实施例一提供的螺旋桨安装结构和电机的连接结构侧视图；
图6是本发明实施例一提供的螺旋桨安装结构和电机的连接结构俯视图；
图7是本发明实施例一提供的另一种螺旋桨安装结构的结构示意图；
图8是本发明实施例二提供的一种螺旋桨的正视图；
图9是本发明实施例二提供的螺旋桨的俯视图；
图10是本发明实施例二提供的螺旋桨的顶视图；
图11是图10中连接组件部分的局部示意图；
图12是本发明实施例二提供的连接组件的结构示意图；
图13是本发明实施例二提供的连接组件中上夹持件和桨叶的连接示意图；
图14是本发明实施例二提供的螺旋桨的爆炸图；
图15是本发明实施例二提供的桨叶的安装示意图；
图16是本发明实施例二提供的螺旋桨在桨叶折叠时的结构示意图；
图17是本发明实施例二提供的另一种连接组件的结构示意图；
图18是本发明实施例三提供的一种动力套装的结构示意图；
图19是图18的动力套装中的电机的结构示意图。
附图标记说明：
1—安装座；2—锁定件；3—弹性件；4—桨叶；5—连接组件；6—垫片；10—电机；11、11a、11b—第一卡持件；12—端面；13—凹槽；20—电机轴；21—止挡部；22—手持部；41—销孔；51—环形连接件；52—上夹持件；53、53a—螺纹紧固件；54—销轴；100—螺旋桨安装结构；111—第一卡槽；112—第一楔形面；200—螺旋桨；211—第二楔形面；221—防滑纹；300—动力套装；511—环形壁；512—第二卡持件；513—轴套；514—第二抵持部；515—夹持部；516—安装孔；521—凸台；522—第一定位孔；523—缓冲垫；524—限位部；5121—第二卡槽；5122—第三挡边；5123—第四挡边；5151—第二定位孔；a—倒角。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获 得的所有其他实施例，都属于本发明保护的范围。
图1是本发明实施例一提供的螺旋桨安装结构和电机的连接结构示意图。图2是图1中的螺旋桨安装结构的局部结构示意图。图3是本发明实施例一提供的螺旋桨安装结构和电机的连接结构正视图。图4是图3中螺旋桨安装结构的局部结构示意图。图5是本发明实施例一提供的螺旋桨安装结构和电机的连接结构侧视图。图6是本发明实施例一提供的螺旋桨安装结构和电机的连接结构俯视图。如图1至图6所示，本实施例提供的螺旋桨安装结构，用于将螺旋桨可拆卸的安装在电机10上。该螺旋桨安装结构具体包括安装座1、锁定件2和弹性件3；安装座1固定于电机10的端面上，且安装座1穿过电机10的电机轴20，安装座1用于和螺旋桨旋转卡合，弹性件3和锁定件2连接，且弹性件3用于沿电机轴20的轴向向锁定件2施加弹力，以使锁定件2至少部分挡设在螺旋桨的卡合方向外侧。
具体的，螺旋桨安装结构能够用于实现螺旋桨与无人飞行器的电机10之间的连接。无人飞行器的电机10可以驱动螺旋桨转动，这样螺旋桨旋转时即可产生向上的升力，因而可带动无人飞行器实现飞行和起降作业。一般的，无人飞行器可以具有多个螺旋桨，因而相应的，螺旋桨安装结构一般也会具有多个，且螺旋桨安装结构的数量和螺旋桨的数量相同。
为了驱动螺旋桨转动，电机10通常包括定子、转子以及电机轴20等，其中电机轴20可以从电机10的一侧端面伸出。一般的，电机轴20可以和电机10上该侧端面固定连接，这样电机轴20以及电机10上的端面均会相对于电机10本体旋转。而螺旋桨可以通过和螺旋桨安装结构与电机10的可转动的端面之间实现连接，并跟随该端面一起旋转，而同时，电机轴20会穿设在螺旋桨的桨毂等结构中，并对螺旋桨进行定位。这样电机10和螺旋桨之间能够形成较为可靠的动力传递结构，从而适应较大的驱动力矩或者较高的转速。
其中，为了将螺旋桨安装于电机10上，且和电机10之间为可拆卸的连接方式，具体的，螺旋桨安装结构中包括有固定于电机10端面上的安装座1，以及和安装座1活动连接的锁定件2和用于驱动锁定件2抵设在安装座1上的弹性件3等结构。其中，安装座1固定于电机10端面上， 因而电机10的端面旋转时，安装座1也会同步转动，以带动螺旋桨旋转。安装座1一般为中空结构，这样安装座1可以穿过电机10的电机轴20而固定在电机10上，使电机轴20能够伸出至安装座1的外侧并对螺旋桨进行定位。此外，为了固定螺旋桨，安装座1上通常设置有凸起或卡槽等结构，并能够和螺旋桨之间旋转卡合。这样通过旋转卡合的方式，螺旋桨能够从轴向上被固定在电机10上。
螺旋桨在工作时，其自身会在电机10的带动下跟随安装座1的转动而同步进行转动，当螺旋桨的转速过快时，螺旋桨有可能会从与安装座1卡合的位置脱离，从而造成射桨等现象，影响无人飞行器的正常飞行和安全。而为了避免螺旋桨从与安装座1卡合的位置脱离，螺旋桨安装结构中还包括有锁定件2和弹性件3，并依靠弹性件3的弹力而让锁定件2抵接在能够锁合螺旋桨的位置上。
具体的，由于安装座1一般为中空结构，因而锁定件2可以和安装座1相互嵌套设置，例如是锁定件2设置在安装座1的中空腔体内，或者是锁定件2也为中空结构，并围设在安装座1的外侧。由于安装座1上设置有凸起或者卡槽的能够和螺旋桨旋转卡合的结构，因而锁定件2和安装座1之间可以实现相对位移，以移动至和凸起或者卡槽同一轴向高度的位置，这样当螺旋桨的卡合结构通过旋转卡合的方式固定在安装座1上时，锁定件2可以通过自身的结构而挡在凸起或者卡槽的外侧，使得螺旋桨的卡合结构被锁定件2所阻挡，而无法从和凸起或者卡槽卡合的位置脱离，从而将螺旋桨锁定在卡合位置，完成螺旋桨与安装座1之间的相对固定。
其中，锁定件2一般可以沿着电机轴20的轴向实现移动，从而挡在凸起或者卡槽外侧并锁定螺旋桨的位置；或者是移动至与凸起或者卡槽不同的轴向位置而解除对螺旋桨的限位锁定。当锁定件2位于和凸起或者卡槽的不同的轴向位置时，此时，由于安装座1上的凸起或者卡槽的外侧没有锁定件2进行遮挡，因而能够正常的与螺旋桨的卡合结构旋转卡合，或者是与螺旋桨的卡合结构之间脱离卡合。其中，为了让锁定件2能够自如的在电机轴20的轴向上实现相对于安装座1的移动，安装座1上通常可以设置凹槽或者避让腔体等结构，以避免锁定件2在移动时和安装座1之间发生结构干涉。此时，锁定件2可以穿过凹槽或者避让腔体，并沿电机 轴20的径向横跨于安装座1的两侧，从而在安装座1的相对两侧同时实现锁定。
通常情况下，锁定件2应该维持在能够锁定螺旋桨的卡合结构的位置，以使螺旋桨保持在卡合位置，避免螺旋桨的卡合结构与安装座脱离卡合。此时，通常可以利用弹性件3的弹力将锁定件2保持在该位置。具体的，由于锁定件2依靠自身在电机轴20轴向上的移动来改变对螺旋桨的限位状态，因而弹性件3的弹力方向也会沿着电机轴20的轴向，例如是朝向背离电机端面的方向。这样锁定件2即可凭借弹性件3的弹力抵接或者固定在安装座1上的螺旋桨的卡合方向的外侧，从而让螺旋桨被锁定件2限制在与安装座1相互卡合的位置，而无法从该卡合位置脱出。一般的，弹性件3可以设置在靠近安装座1中央部位的位置，例如是和电机轴20同轴设置，也可以设置在靠近安装座1上的旋转卡合结构的位置。
其中，由于安装座1和螺旋桨之间为旋转卡合，因而螺旋桨的卡合方向会沿电机10电机轴20的周向方向，并与电机10的转子的旋转方向相反。这样在弹性件3施加弹力时，弹性件3会依靠自身弹力使锁定件2沿电机轴20的轴向移动，锁定件2沿电机轴20的轴向移动至合适位置后，就会挡设在螺旋桨的沿自身旋转方向的外侧，从而让螺旋桨无法从该方向与安装座1脱离卡合。这样螺旋桨和螺旋桨安装结构之间通过旋转卡接的方式连接，一方面连接较为可靠，另一方面也便于进行螺旋桨的拆装和更换操作。
可选的，为了和安装座1实现旋转卡合，螺旋桨上一般同样具有和安装座1相适配的卡接结构，且一般位于螺旋桨的桨毂位置。这样螺旋桨可以利用自身的卡接结构而实现与安装座1之间的旋转卡合。
在螺旋桨安装结构中，锁定件2从螺旋桨的周向上对螺旋桨进行了定位，因而螺旋桨可以被安装座1和锁定件2共同固定在与安装座1相互卡合连接的位置。因而螺旋桨可以相对于电机10的端面固定，当电机10转动时，螺旋桨即可随之转动，同时保证自身安全可靠的固定在电机10上。
具体的，为了连接在电机10上，同时对螺旋桨完成旋转卡合，螺旋桨安装结构可以具有多种不同的结构形式，以下进行具体详细说明。
可选的，安装座1可以为围设在电机轴20的外侧的环形件，且安装 座1沿周向设置有至少一个第一卡持件11，第一卡持件11用于和螺旋桨旋转卡合。
具体的，由于安装座1为环形件，因而电机10的电机轴20从安装座1中央的空间穿过，且安装座1通常具有呈环形的内壁或者外壁，这样螺旋桨的卡接结构同样为环形时，可以通过和安装座1的内壁或者外壁接触而实现相对于电机轴20的周向滑动，这样，沿安装座1周向设置的至少一个卡持件即可与螺旋桨之间实现旋转卡合，或者从卡合状态下旋转脱离。
通常的，由于安装座1为环形件，且螺旋桨可通过和安装座1的内壁或者外壁接触而周向滑动，因而作为一种可选的实施方式，第一卡持件11凸出于安装座1的外壁。此时，螺旋桨上的卡接结构会围设在环形的安装座1的外侧，这样凸出于安装座1外壁的第一卡持件11可以和外侧的卡接结构实现卡接。本实施例中，以第一卡持件11凸出于安装座1的外壁为例进行说明。
而作为另一种可选的实施方式，第一卡持件11可以向内凸出于安装座1的内壁。此时，安装座1围设在螺旋桨的卡接结构的外侧，并与内侧的卡接结构之间实现卡接。因而相应的，第二卡持件也会凸出于安装座1的内壁，并和螺旋桨的位于安装座1内侧的卡接结构实现卡接。
为了在和螺旋桨旋转卡合时，提高安装座1的承力能力，第一卡持件11的数量通常可以为一个以上，例如是安装座1上可以设置有至少两个第一卡持件11，且至少两个第一卡持件11间隔设置。这样安装座1在实现旋转卡合时，多个第一卡持件11即可在安装座1的不同部位对螺旋桨实现限位卡合，卡合时安装座1受力较为分散，因而能够承受较大的力矩。
可选的，当第一卡持件11为多个时，多个第一卡持件11可以相对于电机轴20的轴向呈中心对称设置。这样安装座1在实现和螺旋桨之间的连接时，可以将力矩均匀的传递给各个第一卡持件11，使安装座1在周向的各个方向上的受力均较为均衡，提高安装座1的结构可靠性。
当第一卡持件11为多个时，由于安装座1与螺旋桨之间为旋转卡合的方式实现连接，因而为了便于让螺旋桨沿周向顺畅的相对于安装座1旋转，作为一种可选的实施方式，所有第一卡持件11可以均位于安装座1 的沿轴向的同一高度。由于所有第一卡持件11均位于安装座1的同一高度上，这样第一卡持件11会在安装座1的周向上共同形成位于同一高度的卡合面。螺旋桨与安装座1即可依靠该卡合面实现相对滑动和旋转，以转动至相互卡合的位置。
作为其中一种可选的卡合方式，螺旋桨上可具有沿自身径向凸出的卡合结构，而相应的，第一卡持件11上可形成沿安装座1的周向延伸的第一卡槽111，第一卡槽111用于和卡合结构旋转卡合。
具体的，螺旋桨上的卡合结构可以沿螺旋桨的径向向外或者向内凸出，而相应的，安装座1上的第一卡持件11也会随之向内凸出于安装座1的内壁或者是向外凸出于安装座1的外壁。而第一卡持件11上可以形成沿着安装座1周向延伸的第一卡槽111，第一卡槽111的延伸方向与螺旋桨的轴向垂直，因而可以将螺旋桨的卡合结构移动至在传动轴轴向上与安装座1重合的位置，并旋转卡合结构，使卡合结构卡入第一卡槽111内，并和第一卡槽111之间实现卡合。
一般的，第一卡槽111会沿周向环绕于电机轴20外侧的某一轴向位置上，并利用自身槽壁将螺旋桨上的卡合结构也限制在相对于电机轴20的该位置处。此外，第一卡槽111上通常还具有止挡结构，这样即螺旋桨的卡合结构沿第一卡槽111移动旋转时，即可被止挡在相对于安装座1的某一周向角度上，从而实现对螺旋桨在轴向上的定位。
可选的，当第一卡持件11的数量为两个或者两个以上时，不同的第一卡持件上可以设置不同尺寸的第一卡槽。示例性的，第一卡槽111的尺寸不同，可以是第一卡槽111的外缘或者内缘半径不同等。这样当螺旋桨上的卡合结构在螺旋桨安装结构上安装时，由于第一卡槽111会和卡合结构卡合，因而不同尺寸的第一卡槽也会对应卡接在螺旋桨的卡合结构上的不同尺寸的部分。这样可以根据螺旋桨的旋向不同而让不同尺寸的第一卡槽位于不同的方向和位置，当螺旋桨的旋向错误，例如是正桨(CW)和用于安装反桨(CCW)的螺旋桨安装结构卡合时，就无法和各个第一卡槽111匹配卡合，从而起到了防呆作用。
通常的，第一卡槽111可以为单向卡槽，其延伸方向的一侧为槽口，而延伸方向的另一侧为用于止挡卡合结构的槽底。这样螺旋桨的卡合结构 从第一卡槽111的槽口伸入后，即可沿着第一卡槽111的延伸方向滑动，直至与第一卡槽111的槽底抵接。
此外，当第一卡持件11的数量仅为两个时，第一卡槽111也可以为双向卡槽，此时，第一卡持件11以及第一卡槽111仅用于在沿电机轴20轴向方向上约束螺旋桨，而利用锁定件2在电机轴20径向方向上约束螺旋桨。
其中，可选的，第一卡槽111可以具有多种形式和结构。例如，第一卡槽111可以具有双侧槽壁，或者，第一卡槽111也可以仅包括一侧槽壁，而利用其它限位结构限制螺旋桨相对于安装座1的轴向位置。
在一种可选的结构形式中，第一卡槽111包括位于第一卡持件11上的第一挡边1111，第一挡边1111沿安装座1周向延伸，螺旋桨和第一卡槽111旋转卡合时，第一挡边1111位于卡合结构的远离电机10的一侧。
这样，第一挡边1111可以形成第一卡槽111的一侧槽壁，当螺旋桨与第一卡槽111旋转卡合时，第一挡边1111会阻挡在卡合结构的一侧，以避免螺旋桨连同卡合结构从该侧脱离。因而第一挡边1111可以和相对于卡合结构另一侧的其它结构，例如是电机10或者安装座1上的结构共同将卡合结构夹在其中，以限制卡合结构在传动轴轴向上的位置。
可选的，第一卡槽111还包括和第一挡边1111连接的第二挡边1112，第二挡边1112位于第一挡边1111的一端并沿电机轴20的轴向凸出，第二挡边1112用于限制卡合结构在第一卡槽111内的旋转角度。
此时，第二挡边1112会凸出于第一挡边1111，从而挡设在卡合结构的旋转路径上，这样卡合结构在旋转至第二挡边1112处时，就会和第二挡边1112抵接而停止转动，此时，卡合结构即可被第二挡边1112限制在当前的旋转角度，从而完成和安装座1之间的卡合。
可选的，每个第二挡边1112均位于对应的第一挡边1111的同一端。这样每个第一卡槽111的槽口均朝向相对于该第一卡槽111的同一侧，因而螺旋桨上的卡合结构在与第一卡槽111卡接时，螺旋桨只有相对于安装座1沿周向上的同一方向，例如朝向顺时针方向或者朝向逆时针方向才能完成卡合。由于第一卡槽111具有周向上的方向性，因而可以采用第一卡槽111的不同朝向来区分设置在安装座1上的螺旋桨方向。例如，当俯视 安装座1，第一卡槽111的槽口朝向顺时针方向时，第一卡槽111可用于安装正桨(CW)；而当俯视安装座1，第一卡槽111的槽口朝向逆时针方向时，第一卡槽111可用于安装反桨(CCW)。而相应的，螺旋桨为正桨或者反桨等不同方向时，螺旋桨上的卡合结构也会随之不同，并只能与相应朝向的第一卡槽111旋转卡合，从而便于对螺旋桨的方向进行区分，实现防呆操作。
由于第一挡边1111只挡设在螺旋桨卡合结构的背离电机10的一侧，因而可选的，安装座1具有向远离电机10方向凸出的抵持部，抵持部用于抵持螺旋桨。这样，螺旋桨卡合结构的朝向电机10的一侧可以由抵持部抵持，以阻止螺旋桨继续朝向电机10移动，而第一挡边1111则阻止螺旋桨朝向背离电机10的方向移动，这样抵持部和第一挡边1111共同将螺旋桨的卡合结构夹设在其中，以实现螺旋桨的轴向定位。
具体的，抵持部可以为安装座1的背离电机10一侧的端面12。该端面通常为环形面，因而在电机轴20周向的各个不同方向均能够抵持螺旋桨，并和第一挡边1111共同围成对螺旋桨的轴向定位。
而锁定件2通常可以相对于安装座1移动，来实现对第一卡持件11的锁合或解锁，以让螺旋桨的卡合部分卡入或者避免螺旋桨的卡合部分从卡合位置脱出。可选的，安装座1上可以设置有形状和尺寸与所述锁定件2相匹配的凹槽13，锁定件2位于凹槽13内并可沿电机轴20的轴向移动。这样由于第一卡持件11通常位于安装座1上的某一轴向位置上，因而锁定件2沿电机轴20轴向移动时，就会位于相对于第一卡持件11的不同轴向位置，例如是位于和第一卡持件11同一轴向位置上，并挡在螺旋桨的卡合结构的外侧，或者是远离第一卡持件11，以使螺旋桨的卡合结构能够顺利与第一卡持件11脱离卡合。
其中，可选的，凹槽13的槽口可以朝向电机10开设，这样可以通过凹槽13以及电机10的端面共同对锁定件2实现限位固定，定位结构较为简单。
可选的，由于第一卡槽111的数量为一个或多个，相应的，锁定件2也可以具有至少一个用于止挡在第一卡槽111的槽口的止挡部21。例如，止挡部21具有多个，且在锁定件2的周向间隔分布。这样当锁定件2对 螺旋桨进行锁定时，每个止挡部21均可以止挡在一个对应的第一卡槽111的槽口，从而避免螺旋桨由第一卡槽111中脱离。
为了让止挡部21止挡在第一卡槽111的槽口部位，作为一种可选的实施方式，止挡部21与电机轴20的轴心之间的径向距离与第一卡持件11与电机轴20的轴心的径向距离通常可以相同。此时，止挡部21和第一卡持件11均位于环绕在电机轴20外侧的同一圆柱面上。这样止挡部21在沿电机轴20轴向移动，并止挡在第一卡槽111的槽口部位时，可以恰好将第一卡槽111的槽口完全挡住，因而螺旋桨不易脱离，卡合较为可靠。
由于当安装座1上的第一卡持件11为多个时，多个第一卡持件11一般会间隔排布在同一圆周上，因而每个第一卡持件11的槽口会对应朝向与之相邻的另一卡持件。相应的，作为一种可选的排布方式，止挡部21止挡在相邻两个第一卡持件11之间。此时，每个止挡部21均可以插入相邻两个第一卡持件11之间的间隙中，并止挡在对应的第一卡持件11的槽口处。这样一方面止挡部21可以利用相邻第一卡持件11之间的间隙进行设置，从而有效节省空间；另一方面止挡部21也可以通过相邻的第一卡持件11作为支撑和限位结构，以提高止挡时的可靠性。
可选的，止挡部21止挡在第一卡槽111的槽口时，止挡部21和第一卡持件11之间相互抵接。这样止挡部21可以通过弹性件3的弹力而和第一卡持件11紧密抵持，从而实现对第一卡槽111的止挡和锁定。其中，止挡部21可以仅与对应的第一卡持件11抵接，也可以与对应的第一卡持件11，以及和该第一卡持件11相邻的另一第一卡持件11同时实现抵接。
其中，为了保证止挡部21能够和第一卡持件11可靠的相互抵接，可选的，与形成第一卡槽111的第一卡持件11a相邻的第一卡持件11b具有倾斜向下的第一楔形面112，止挡部21上设置有与第一楔形面112相互匹配的第二楔形面211，止挡部21在弹性件3的弹力作用与该具有第一楔形面112的第一卡持件11b抵接时，第一楔形面112和第二楔形面211相互贴合，以限制止挡部21相对于第一卡槽111的槽口的位置。
具体的，一般而言，弹性件3向锁定件2施加的弹力方向会远离电机10端面，因而与形成第一卡槽111的第一卡持件11a相邻的第一卡持件11b可以设置有向下倾斜的第一楔形面112，这样止挡部21沿轴向向第一 卡持件11移动时，止挡部21上的第二楔形面211就会抵住第一楔形面112并与之贴合楔紧。由于第一楔形面112和第二楔形面211的相互挤压，具有第一楔形面112的第一卡持件11b就会对止挡部21施加朝向第一卡持件11a上第一卡槽111的槽口的分力，从而将止挡部21紧压在第一卡槽111的槽口上，完成对螺旋桨的卡合锁定。
此外，由于弹性件3的弹力方向一般沿着电机轴20的轴向，因而相应的，弹性件3的一端可以和电机相对固定，而另一端和锁定件2连接，这样锁定件2就会在弹性件3的弹力下沿电机轴20的轴向移动至可阻挡在第一卡槽111槽口外侧的位置，因而用户可以通过移动锁定件2的位置来使第一卡槽111的槽口封闭或打开。
此时，为了便于移动锁定件2，可选的，锁定件2还具有沿电机轴20的径向向外伸出的手持部22。用户可以通过握持手持部22，以对锁定件2整体施加沿着电机轴20轴向的作用力，且该作用力方向和弹性件3的弹力方向相反，这样用户即可通过向手持部22施加作用力，从而抵消弹性件3的弹力，使锁定件2沿电机轴20的轴向移动，完成对第一卡槽111的锁定和开启。
通常的，当用户未施加外力时，弹性件3会处于自然受压状态，并依靠自身的弹力将锁定件2固定在阻挡于第一卡槽111槽口外侧的位置；而当用户向手持部22施加沿电机轴20轴向上的作用力时，锁定件2即可克服弹性件3的弹力而沿电机轴20的轴向移动，并从阻挡于第一卡槽111槽口外侧的位置移开，从而螺旋桨即可被装入螺旋桨安装结构，或者由螺旋桨安装结构中取出；当完成螺旋桨的安装或者拆卸后，即可松开手持部22，使锁定件2在弹性件3的弹力作用下恢复至阻挡在第一卡槽111槽口外侧的位置。
其中，可选的，为便于对锁定件2施加作用力，手持部22的个数可以为偶数个，且相对于电机轴20对称设置。这样用户可以利用手指将对称的手持部22下压，从而让第一卡槽111的槽口打开，以方便的进行螺旋桨的快速装卸。
可选的，手持部22位于凹槽13内。这样手持部22可以直接从凹槽13内伸出，锁定件2的结构较为简单。
图7是本发明实施例一提供的另一种螺旋桨安装结构的结构示意图。如图7所示，可选的，螺旋桨安装结构中的手持部22上还可以设置有防滑结构，以提高用户握持手持部22时的摩擦力，避免用户出现手滑现象。具体的，防滑结构可以为在手持部22表面上的防滑纹221或者防滑凸点等。
而为了向锁定件2施加弹力，以使锁定件2保持在挡设在第一卡槽111槽口外侧的位置，作为一种可选的结构，螺旋桨安装结构中的弹性件3可以为一端与电机10的端面连接，另一端和锁定件2连接的方式。这样弹性件3即能以电机10的端面为支撑，对锁定件2施加远离电机10的作用力。其中，弹性件3对锁定件2所施加的作用力方向等状态均如前述实施例中所述，此处不再赘述。
其中，为了保证弹性件3施加弹力的方向，可选的，弹性件3和电机轴20可以保持同轴设置。具体的，弹性件3可以为中空结构，且电机轴20位于弹性件3的中空结构之中，或者弹性件3也可以为多个，且多个弹性件3以电机轴20为中心对称设置。
其中，弹性件3可以有多种可能的结构形式。在一种可选的结构形式中，弹性件3可以为弹簧。弹簧通常呈螺旋状，因而可以套设在电机轴20外侧，并和电机轴20同轴设置。
可选的，弹性件3可以为一端较大，而另一端较小的塔形弹簧，这样弹性件3在压缩时，较小的一端可以下压至较大的一端的内部，从而有效的减少弹性件3的占用空间。
此外，弹性件3可以为变径弹簧。此时弹性件3由线径逐渐变化的弹簧丝构成，冲击力较小时，可以由线径较小的部分形变承力；而冲击力较大时，可以通过线径较大的部分承力。这样在较小压力下，弹性件3可以具有灵敏的反应，而在较大压力下，则具有较大的弹力，从而实现弹性件3的可靠形变。
本实施例中，螺旋桨安装结构用于将螺旋桨可拆卸的安装在电机上。该螺旋桨安装结构具体包括安装座、锁定件和弹性件；安装座固定于电机的端面上，且安装座穿过电机的电机轴，安装座用于和螺旋桨旋转卡合，弹性件和锁定件连接，且弹性件用于沿电机轴的轴向向锁定件施加弹力， 以使锁定件至少部分挡设在螺旋桨的卡合方向外侧。这样螺旋桨能够通过旋转卡合的方式和电机实现相对固定，同时连接较为可靠，能够有效避免射桨现象；同时拆装较为简便。
图8是本发明实施例二提供的一种螺旋桨的正视图。图9是本发明实施例二提供的螺旋桨的俯视图。图10是本发明实施例二提供的螺旋桨的顶视图。图11是图10中连接组件部分的局部示意图。图12是本发明实施例二提供的连接组件的结构示意图。图13是本发明实施例二提供的连接组件中上夹持件和桨叶的连接示意图。图14是本发明实施例二提供的螺旋桨的爆炸图。图15是本发明实施例二提供的桨叶的安装示意图。图16是本发明实施例二提供的螺旋桨在桨叶折叠时的结构示意图。如图8至图16所示，本实施例提供的螺旋桨，具体包括至少一个桨叶4和用于安装在电机10的电机轴20上的连接组件5，桨叶4设置在连接组件5上，连接组件5包括用于和电机10上的螺旋桨安装结构旋转卡合的环形连接件。
其中，螺旋桨包括有一个或多个桨叶，桨叶4通常以螺旋桨自身的旋转轴为中心对称设置。当螺旋桨在电机10的驱动下转动时，桨叶4即可随着移动，并依靠桨叶4的自身形状推动空气，从而产生升力。而连接组件5用于安装在电机10的电机轴20上，以连接电机10和桨叶4。其中，连接组件5包括有用于和电机10上的螺旋桨安装结构旋转卡合的环形连接件51，环形连接件51通常和螺旋桨的轴心同轴设置，且环形连接件51一般具有凸起或者凹槽13等卡合结构，以便相对于电机10上的螺旋桨安装结构旋转并卡合在一起。
可选的，桨叶4的数量可以为两个，且两个桨叶对称设置，这样螺旋桨能够以较少的桨叶数量提供一定的升力，结构较为简单。以下为便于叙述，均以螺旋桨包括两个桨叶为例进行说明。
其中，和环形连接件51旋转卡合的可以为前述实施例一中的螺旋桨安装结构，也可以为其它能够实现旋转卡合功能的连接结构，此处不加以限制。
可选的，为了实现旋转卡合功能，环形连接件51可具有环形壁511和沿环形壁511周向设置的至少一个第二卡持件512，第二卡持件512用 于和螺旋桨安装结构旋转卡合。其中，和前述实施例一中的螺旋桨安装结构类似，环形连接件51同样可以具有一个用于实现旋转滑动的环形壁511。当环形连接件51移动至和螺旋桨安装结构重叠的位置时，环形壁511的内壁或者外壁就会与螺旋桨安装结构的主体部分滑动抵接，并可让环形连接件51相对于螺旋桨安装结构进行转动；而第二卡持件512即可和螺旋桨安装结构上的对应部分完成卡合或者从卡合状态脱离。
可选的，同样和螺旋桨安装结构类似，第二卡持件512可以是向外凸出于环形壁511的外壁。此时相应的，螺旋桨安装结构上的对应部分，例如是安装座1会位于环形连接件51的外侧；或者，第二卡持件512可以向内凸出于环形壁511的内壁，此时，环形组件可以与位于内侧的螺旋桨安装结构实现卡合连接。
为了在和螺旋桨旋转卡合时，提高安装座1的承力能力，第一卡持件11的数量通常可以为一个以上，例如是安装座1上可以设置有至少两个第一卡持件11，且至少两个第一卡持件11间隔设置。这样安装座1在实现旋转卡合时，多个第一卡持件11即可在安装座1的不同部位对螺旋桨实现限位卡合，卡合时安装座1受力较为分散，因而能够承受较大的力矩。
可选的，和螺旋桨安装结构上的第一卡持件11类似，环形连接件51上可以设置有至少两个第二卡持件512，且至少两个第二卡持件512间隔设置。这样环形连接件51在和螺旋桨安装结构的相应部分，例如是实施例一中的安装座1实现旋转卡合时，多个第二卡持件512即可在环形连接件51的不同部位和螺旋桨安装结构之间实现限位卡合，这样环形连接件51受力较为分散，能够承受较大力矩。
同样的，当第二卡持件512为多个时，第二卡持件512也可以相对于环形连接件51的轴向中心对称，从而将力矩均匀的传递给各个第二卡持件512，使环形连接件51在周向的各个方向上的受力均较为均衡，提高结构可靠性。
此外，所有第二卡持件512也可以均位于环形连接件51的沿轴向的同一高度。这样所有第二卡持件512可以形成与前述实施例一中第一卡持件11所形成的类似的环形面，以使螺旋桨与螺旋桨安装结构依靠该卡合面实现相对滑动和旋转。该环形面可以和第一卡持面形成的环形面贴合， 此时环形连接件51和螺旋桨安装结构中的安装座1即可依靠两个贴合的环形面实现相对旋转和抵持，结构可靠性较高。
可选的，螺旋桨安装结构上设置有沿电机轴20的径向凸出的卡合结构，第二卡持件512上还可以形成沿环形连接件51的周向延伸的第二卡槽5121，第二卡槽5121用于和卡合结构旋转卡合。
其中，第二卡槽5121会沿周向环绕于电机轴20外侧的某一轴向位置上，并利用自身槽壁将螺旋桨上的卡合结构也限制在相对于电机轴20的该位置处。此外，第二卡槽5121上通常还具有止挡结构，这样第一卡槽111可以将螺旋桨安装结构限制在相对于环形连接件51的某一周向角度上，从而实现对螺旋桨在轴向上的定位。
其中，由于螺旋桨安装结构上的卡合结构可以为多种结构，例如是前述实施例一中形成的第一卡槽111，或者是其它可与第二卡槽5121相互匹配的卡合件等。因而相应的，例如，第二卡槽5121也可以为多种形式，例如第二卡槽5121可以具有双侧槽壁，或者仅包括一侧槽壁，再或者是其它本领域技术人员常用的卡合结构等。
在其中一种可选的实施方式中，第二卡槽5121的结构可以和前述实施例一中的卡槽互为镜像结构。例如，第二卡槽5121可以包括位于第二卡持件512上的第三挡边5122，第三挡边5122沿环形连接件51的周向延伸，卡合结构和第二卡槽5121旋转卡合时，第三挡边5122位于卡合结构的临近电机10的一侧，这样第二卡槽5121即可利用第三挡边5122将螺旋桨安装结构中的卡合结构限制在电机轴20轴向上的某一位置。
此外，卡槽还可以包括和第三挡边5122连接的第四挡边5123，第四挡边5123位于第三挡边5122的一端并沿环形连接件51的轴向凸出，第四挡边5123用于限制卡合结构在第二卡槽5121内的旋转角度。
具体的，和前述实施例一中第一挡边1111和第二挡边1112的相对位置类似，第四挡边5123也会凸出于第三挡边5122，从而挡设在螺旋桨安装结构的旋转路径上，这样螺旋桨安装结构相对于环形连接件51旋转至第四挡边5123处时，就会和第四挡边5123抵接而停止转动，此时，螺旋桨安装结构即可被第四挡边5123限制在当前的旋转角度，从而完成和环形连接件51之间的卡合。
相应的，每个第四挡边5123均位于对应的第三挡边5122的同一端，此时，每个第二卡槽5121的槽口均朝向相对于该第二卡槽5121的同一侧，因而螺旋桨安装结构在与第二卡槽5121卡接时，螺旋桨只有相对于螺旋桨安装结构沿周向上的同一方向，例如朝向顺时针方向或者朝向逆时针方向才能完成卡合，而另一方向上则无法旋转或者无法在旋转时进行卡合。由于第二卡槽5121具有和前述第一卡槽111类似的方向性，因而可以采用第二卡槽5121的不同朝向来对螺旋桨方向进行区分。例如，当仰视环形连接件51，而第二卡槽5121的槽口朝向顺时针方向时，此时螺旋桨为反桨(CCW)；而当仰视环形连接件51，且第二卡槽5121的槽口朝向逆时针方向时，螺旋桨此时为正桨(CW)。进一步的，第二卡槽5121可以和第一卡槽111互为镜像或者是互补结构，例如螺旋桨和螺旋桨安装结构旋转卡合在一起时，第二卡槽5121上的第三挡边5122和第一卡槽111上的第一挡边1111对应贴合，而第四挡边5123则和第一卡槽111上的第二挡边1112抵接在一起。这样如果螺旋桨和螺旋桨安装结构所对应的方向不同，就会无法完成卡合，因而这样的方向性设计便于对螺旋桨的方向进行区分，实现防呆操作。
此外，和前述实施例一类似，可选的，当第二卡持件512的数量为两个或者两个以上时，不同的第二卡持件上可以设置不同尺寸的第二卡槽，以起到防呆效果。其具体结构和实现原理和前述实施例一中类似，此处不再赘述。
此外，为了用于和电机轴20连接，可选的，环形连接件51上还可以设置有用于和电机10的电机轴20连接的轴套513。轴套513套在电机轴20外侧，从而可以和电机轴20连接并固定电机轴20，避免电机轴20在转动时发生窜动等现象。
其中，轴套513的轴孔边缘可以具有倒角。这样螺旋桨在向螺旋桨安装结构以及电机10上安装时，轴孔边缘的倒角对电机轴20具有一定的导向作用，可以避免电机轴20的棱边对轴孔造成切削。一般的，轴孔边缘的倒角大小可以为0.5mm×45°。
当第二卡槽5121仅包括第三挡边5122以及第四挡边5123时，为了进一步限制螺旋桨和螺旋桨安装结构在电机轴20轴向上的相对位置，可 选的，环形连接件51还可以具有朝向电机10方向凸出的第二抵持部514，第二抵持部514用于从电机10的电机轴20轴向抵持螺旋桨安装结构。此时，第二抵持部514能够和第三挡边5122共同作用，将螺旋桨安装结构的相应部分夹在其中，实现螺旋桨和螺旋桨安装结构在电机轴20轴向上的相对固定。
其中，由于环形连接件51上的第二卡持件512通常为多个，且在周向上环绕环形连接件51，为了和各个第二卡持件512的作用力相平衡，可选的，第二抵持部514可以呈十字状交错设置在环形连接件51的内侧。这样第二抵持部514相对于环形连接件51的中心对称，因而此时无论在周向上的哪个方向上，环形连接件51均能够和螺旋桨安装结构实现抵持固定，受力较为均衡。
此外，第二抵持部514可以为其它结构及形状，例如可以为凸出于环形连接件51的环形壁511上的环缘，或者是其它本领域技术人员所常用的抵持结构等，此处不再赘述。
此外，为了让环形连接件51和桨叶4进行固定，作为一种可选的实施方式，环形连接件51上可以设置有夹持部515，桨叶4的根部固定在夹持部515上。此时，夹持部515可以从桨叶4根部的一侧使桨叶4得到固定，具体的，夹持部515可以通过卡接或者螺纹紧固件与桨叶4完成固定，或者利用其它结构件共同固定桨叶4。
因此，作为其中一种可选的实施方式，连接组件5还可以包括上夹持件52，上夹持件52用于和夹持部515共同夹持桨叶4的根部。具体的，连接组件5中的上夹持件52以及夹持部515可以分别从桨叶4根部的上下两侧对桨叶4完成夹持，从而构成类似于桨夹的结构，这样桨叶4即可在电机轴20轴向上得到固定，且利用上夹持件52和夹持部515之间的摩擦力或者是限位结构，可以让桨叶4在圆周方向上得到连接组件5的固定，使桨叶4相对于连接组件5保持一定的径向方向，这样桨叶4即可利用连接组件5而得到定位。
其中，上夹持件52可以利用多种连接方式和下方的夹持部515完成连接。例如在一种可选的实施方式中，上夹持件52和环形连接件51之间可以通过螺纹紧固件53进行连接。这样用户可以方便的对桨叶4进行拆 装，同时保证桨叶4能够牢固的安装。
具体的，为了设置螺纹紧固件53，可选的，上夹持件52上可设置有至少一个与电机轴20平行的凸台521，凸台521上设置有螺纹孔，环形连接件51上设置有与螺纹孔对应的安装孔516，螺纹紧固件53即可通过安装孔516伸入螺纹孔内部，以连接上夹持件52和环形连接件51。这样螺纹紧固件53会由下向上安装，并连接上夹持件52和下方的环形连接件51，上夹持件52的顶面不需要穿设螺纹紧固件，因而较为干净整洁，美观度较好。
为了提供足够的升力，桨叶4一般会具有较长的长度，此时，螺旋桨的桨叶4会具有较大的直径，不便于螺旋桨以及无人飞行器的运输和存放。为了减少螺旋桨桨叶4的空间占用，可选的，桨叶4和连接组件5之间可以为可转动连接。这样当螺旋桨上的多个桨叶在不用时即可转动至相近或者重叠的位置，从而使螺旋桨整体呈现折叠状态，以减少螺旋桨的整体占用空间。一般的，桨叶4通常可以在水平面内相对于连接组件5转动。
其中，为了实现桨叶4和连接组件5之间的可转动连接，可选的，桨叶4的根部具有销孔41，桨叶4可绕销孔41转动，以旋转至折叠状态或者工作状态。这样桨叶4的根部可以插入销轴等结构，并与连接组件5之间形成转动铰链。
进一步的，为了让上夹持件52和夹持部515在夹持桨叶4的同时，实现桨叶4的可转动连接，作为一种可选的实施方式，连接组件5还包括与销孔41匹配的定位件，而上夹持件52相应的设置有第一定位孔522，夹持部515相应的设有第二定位孔5151，第一定位孔522和第二定位孔5151的位置相互对应，此时，可以通过调整桨叶4的根部位置，使第一定位孔522、第二定位孔5151和桨叶4根部的销孔41调整至同轴的位置，这样定位件依次穿过第一定位孔522、销孔41和第二定位孔5151，以使连接组件5和桨叶4固定在一起。由于第一定位孔522、第二定位孔5151和销孔41均与定位件之间为可转动连接，因而定位件在对桨叶4进行固定的同时，也能够让桨叶4相对于定位件进行转动，以旋转至不同桨叶相互靠近的折叠状态，或者是不同桨叶之间距离最大化的工作状态。
其中，定位件可以为销轴、塞打螺丝或者螺纹紧固件中的至少一种， 或者也可以为其它本领域技术人员常用的结构，此处不加以限制。
而为了和不同类型的定位件相配合，可选的，第二定位孔5151也可以为光孔、螺纹孔或者沉头孔至少一种。其中，当定位件为塞打螺丝时，第二定位孔5151可以为螺纹孔，并直接与塞打螺丝的螺纹配合锁紧。或者，第二定位孔5151也可以为沉头孔，并用于固定塞打螺丝或者螺纹紧固件等。此时，沉头孔内可以装入螺纹紧固件，也可以装入与塞打螺丝相配合的螺母。其中，第二定位孔5151为沉头孔时，还可以在孔内的阶梯处设置用于防松的轴套，轴套通常为塑胶材质等。此外，当定位件为销轴时，第二定位孔5151可以为孔径始终一致的光孔，并依靠销轴的尺寸配合实现和第二定位孔5151之间的匹配连接。
为了便于阐述，以下如无特殊说明，均以定位件为销轴54为例进行说明。
其中，为了对销轴54进行固定定位，可选的，第一定位孔522和销轴54之间可以为过盈配合。此时，销轴54的直径会略大于第一定位孔522的孔径，因而销轴54在第一定位孔522内可以得到较为牢固的定位。而销轴54和桨叶4上销孔41之间的配合通常可以为过渡配合，以使桨叶4能够顺利的在折叠状态和工作状态下切换，同时在旋转时保证其和销轴54之间不发生相对转动。
为了适应销轴54与第一定位孔522之间的过盈配合，以及销轴54和销孔41之间的过渡配合，作为一种可选的方式，可以让销轴54的插入第一定位孔522的一端的直径大于销轴54的其余部分的直径，这样既可以保证销轴54的固定，也能够让桨叶4自如的在折叠状态和工作状态之间转动切换。
而在另一种可选的实施方式中，当定位件为螺纹紧固件时，可以直接利用螺纹紧固件来实现连接组件5的整体装配。图17是本发明实施例二提供的另一种连接组件的结构示意图。如图17所示，可选的，定位件为螺纹紧固件53a，上夹持件52和环形连接件51之间通过定位件，也就是螺纹紧固件53a连接；此时，由于定位件的位置就是上夹持件52与环形连接件51之间的连接点位置，因而定位件上由于螺旋桨的推力而造成的扭力较小，能够避免定位件以及相应结构因为应力过大而出现开裂损坏现 象。此外，定位件的与桨叶4的轴孔41配合的部位具有光滑外壁，以使桨叶4可以相对于螺纹紧固件53a自由转动而不受到螺纹的影响。
当螺旋桨在高速旋转工作时，桨叶4会因受到气流的冲击而产生高频振动，此时，桨叶4的振动可能会对连接组件5造成损害，或者使桨叶4根部从连接组件5上松脱。为了减少桨叶4的振动，作为一种可选的方式，上夹持件52可以具体包括具有凹腔的本体和设置在凹腔内的缓冲垫523，第一定位孔522设置在缓冲垫523上。这样桨叶4通过销轴等结构和上夹持件52以及夹持部515连接时，桨叶4会和缓冲垫523接触，并利用缓冲垫523的弹性形变抵消桨叶4的移动及形变，完成对桨叶4的减振作用。其中，缓冲垫523可以设置在桨叶的一侧或者上下两侧，其具体设置方式可以根据需要而定，本实施例中以桨叶的朝向上夹持件52的一面以及背离上夹持件52的一面均设置有缓冲垫523进行说明。
其中，由于桨叶4一般为多个，因而凹腔的数量均可以与桨叶4的数量相同。此时，每个桨叶均会对应至少一个独立的缓冲垫523，因而缓冲垫523具有较好的减振效果。
为了对桨叶4进行缓冲和减振，可选的，缓冲垫523可以为硅橡胶垫，或者是其它具有弹性的材料制成。
当对桨叶4进行折叠时，由于桨叶4与上夹持件52或者夹持部515之间通常具有较大的接触面积，为了减少桨叶4与连接组件5各部分之间的摩擦，使桨叶4能够较为顺畅的折叠或展开，可选的，在上夹持件52和桨叶4的根部之间，以及夹持部515与桨叶4的根部之间的至少一者可以设置有垫片6，垫片6和桨叶4贴合。垫片6能够提供较为平滑的表面，因而有助于减少连接组件5和桨叶4之间的摩擦力，使桨叶4能够较为顺畅的折叠或展开，同时减少桨叶4表面在转动时的磨损。
可选的，垫片6通常为光滑耐磨件，也就是由摩擦系数较小且较为耐磨的材料制成。可选的，垫片6为铁氟龙垫片。铁氟龙材料又称聚四氟乙烯，具有较低的摩擦性和优良的耐磨性，因而垫片6表面和桨叶4接触时，能够对桨叶4起到润滑效果，产生的摩擦力较小，使桨叶4的转动较为顺畅。
当桨叶4进行折叠时，相邻两个桨叶4如果距离过小，则可能会因相 互接触而造成桨叶4表面损伤等现象。为了避免桨叶4折叠时相邻桨叶4发生碰撞，作为可选的一种实施方式，可以在上夹持件52上设置至少一个限位部，524限位部用于限制桨叶4的转动角度。
以图16为例，螺旋桨包括有两个桨叶，且两个桨叶在折叠时，会各自绕轴旋转，直至转到较近的距离。为了避免两个桨叶的距离过近，在上夹持件52上设置有多个限位部524，限位部524设置在两个桨叶根部之间的位置，这样桨叶4旋转至预设角度时，桨叶4的侧边就会和限位部524相碰而无法继续转动，此时，两个桨叶4就会在限位部524的限位作用下保持一定的间距，避免相互触碰的现象。由于桨叶4可以向两个相反的方向转动，因而对应于每个桨叶均可以设置有两个限位部524，且两个限位部524分别设置在桨叶4的旋转方向的两侧。这样在桨叶4向不同方向折叠时，两个限位部524可以分别对桨叶4进行限位。
其中，限位部524也可以具有多种不同结构。例如在一种可选的结构中，限位部设置在上夹持件52的底面，并朝向电机10凸出。这样限位部524在实现正常限位的同时，具有较为简单的结构，且尺寸较小。具体的，限位部可以为凸起或者定位柱等结构。
需要说明的是，图8至图17中是以螺旋桨包括两个桨叶的情况为例进行说明，而桨叶为其它数量时，连接组件5中也可以具有类似的结构，以实现和桨叶之间的连接和固定，此处不再赘述。
本实施例中，螺旋桨具体包括至少一个桨叶和用于安装在电机的电机轴上的连接组件，桨叶设置在连接组件上，连接组件包括用于和电机上的螺旋桨安装结构旋转卡合的环形连接件。这样螺旋桨能够通过旋转卡合的方式和电机实现相对固定，同时连接较为可靠，能够有效避免射桨现象；同时螺旋桨的拆装较为简便。
图18是本发明实施例三提供的一种动力套装的结构示意图。如图18所示，本实施例提供的动力套装300，包括有上述实施例一所述的螺旋桨安装结构100和实施例二所述的螺旋桨200中的至少一者，此外还包括有电机10，螺旋桨200通过螺旋桨安装结构100连接至电机10上。其中，螺旋桨安装结构100以及螺旋桨200的具体结构、工作原理和功能均已在前述实施例中进行了详细说明，此处不再赘述。
具体的，通过前述的螺旋桨安装结构100或者是螺旋桨200，可以让螺旋桨200以旋转卡合的方式连接在动力套装300中，螺旋桨200得到固定，且不易在高速转动时从螺旋桨安装结构100中脱出，有效的避免了射桨现象。
其中，图19是图18的动力套装中的电机的结构示意图。如图19所示，可选的，电机10的电机轴20末端可以具有倒角a，具体的，倒角a可以是先倒出一个斜角，再倒出圆角的形式。这样电机10的电机轴20末端不易对螺旋桨200上的结构造成划伤。
本实施例中，动力套装包括有螺旋桨安装结构和螺旋桨中的至少一者以及电机，螺旋桨通过螺旋桨安装结构连接至电机上。这样螺旋桨能够通过旋转卡合的方式和电机实现快速拆装，同时连接较为可靠，能够有效避免射桨现象。
本发明实施例四还提供一种无人飞行器，包括机体和至少一个实施例三所述的动力套装，机体包括机架和与机架连接的机臂，动力套装设置在机臂上。
具体的，无人飞行器的机体上可以连接有多个机臂，且每个机臂上均设置一个动力套装。动力套装中的螺旋桨可以通过旋转而切割空气，进而产生足够的升力来驱动无人飞行器进行起降和正常飞行。
具体的，为了保证无人飞行器的正常飞行，不同的螺旋桨可具有不同的旋向。可选的，无人飞行器上两个相邻设置的动力套装中，电机的转向通常是不同的。与之相应的，其中一个动力套装中螺旋桨上的卡合结构的朝向、螺旋桨安装结构中第一卡槽的朝向以及螺旋桨与螺旋桨安装结构在旋转卡合时的旋转方向均与另一动力套装上的不同。
本实施例中，无人飞行器包括机体和至少一个动力套装，机体包括机架和与机架连接的机臂，动力套装设置在机臂上；其中，动力套装包括有螺旋桨安装结构和螺旋桨中的至少一者以及电机，螺旋桨通过螺旋桨安装结构连接至电机上。这样无人飞行器中的螺旋桨能够通过旋转卡合的方式和电机实现相对固定和快速拆装，同时连接较为可靠，能够有效避免射桨现象。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对 其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (208)

  1. 一种螺旋桨安装结构，用于将螺旋桨可拆卸的安装在电机上，其特征在于，包括安装座、锁定件和弹性件；所述安装座固定于所述电机的端面上，且所述安装座穿过所述电机的电机轴，所述安装座用于和所述螺旋桨旋转卡合，所述弹性件和所述锁定件连接，且所述弹性件用于沿所述电机轴的轴向向所述锁定件施加弹力，以使所述锁定件至少部分挡设在所述螺旋桨的卡合方向外侧。
  2. 根据权利要求1所述的螺旋桨安装结构，其特征在于，所述安装座为围设在所述电机轴的外侧的环形件，且所述安装座沿周向设置有至少一个第一卡持件，所述第一卡持件用于和所述螺旋桨旋转卡合。
  3. 根据权利要求2所述的螺旋桨安装结构，其特征在于，所述第一卡持件向外凸出于所述安装座的外壁；或者，所述第一卡持件向内凸出于所述安装座的内壁。
  4. 根据权利要求2所述的螺旋桨安装结构，其特征在于，所述安装座上设置有至少两个第一卡持件，且至少两个所述第一卡持件间隔设置。
  5. 根据权利要求4所述的螺旋桨安装结构，其特征在于，至少两个所述第一卡持件相对于所述电机轴的轴向中心对称。
  6. 根据权利要求5所述的螺旋桨安装结构，其特征在于，所有所述第一卡持件均位于所述安装座的沿轴向的同一高度。
  7. 根据权利要求2-6任一项所述的螺旋桨安装结构，其特征在于，所述螺旋桨具有沿径向凸出的卡合结构，所述第一卡持件上形成沿所述安装座的周向延伸的第一卡槽，所述第一卡槽用于和所述卡合结构旋转卡合。
  8. 根据权利要求7所述的螺旋桨安装结构，其特征在于，所述第一卡持件为至少两个，不同第一卡持件上的第一卡槽具有不同尺寸。
  9. 根据权利要求7所述的螺旋桨安装结构，其特征在于，所述第一卡槽为单向卡槽；或者，所述第一卡持件为两个，且所述第一卡槽为双向卡槽。
  10. 根据权利要求7所述的螺旋桨安装结构，其特征在于，所述第一卡槽包括位于所述第一卡持件上的第一挡边，所述第一挡边沿所述安装座 周向延伸，所述螺旋桨和所述第一卡槽旋转卡合时，所述第一挡边位于所述螺旋桨的卡合结构的远离所述电机的一侧。
  11. 根据权利要求10所述的螺旋桨安装结构，其特征在于，所述第一卡槽还包括和所述第一挡边连接的第二挡边，所述第二挡边位于所述第一挡边的一端并沿所述电机轴的轴向凸出，所述第二挡边用于限制所述螺旋桨的卡合结构在所述第一卡槽内的旋转角度。
  12. 根据权利要求11所述的螺旋桨安装结构，其特征在于，每个所述第二挡边均位于对应的所述第一挡边的同一端。
  13. 根据权利要求2-6任一项所述的螺旋桨安装结构，其特征在于，所述安装座具有向远离所述电机方向凸出的抵持部，所述抵持部用于抵持所述螺旋桨。
  14. 根据权利要求13所述的螺旋桨安装结构，其特征在于，所述抵持部为所述安装座的远离所述电机一侧的端面。
  15. 根据权利要求7所述的螺旋桨安装结构，其特征在于，所述安装座上设置有凹槽，所述锁定件位于所述凹槽内并可沿所述电机轴的轴向移动。
  16. 根据权利要求15所述的螺旋桨安装结构，其特征在于，所述凹槽的槽口朝向所述电机。
  17. 根据权利要求16所述的螺旋桨安装结构，其特征在于，所述锁定件具有至少一个用于止挡在所述第一卡槽的槽口的止挡部。
  18. 根据权利要求17所述的螺旋桨安装结构，其特征在于，所述止挡部与所述电机轴的轴心之间的径向距离与所述第一卡持件与所述电机轴的轴心的径向距离相同。
  19. 根据权利要求18所述的螺旋桨安装结构，其特征在于，所述止挡部止挡在相邻两个所述第一卡持件之间。
  20. 根据权利要求19所述的螺旋桨安装结构，其特征在于，所述止挡部止挡在所述第一卡槽的槽口时，所述止挡部和所述第一卡持件之间相互抵接。
  21. 根据权利要求20所述的螺旋桨安装结构，其特征在于，所述止挡部与形成所述第一卡槽的第一卡持件相邻的第一卡持件相互抵接。
  22. 根据权利要求21所述的螺旋桨安装结构，其特征在于，与形成所述第一卡槽的第一卡持件相邻的所述第一卡持件具有倾斜向下的第一楔形面，所述止挡部上设置有与所述第一楔形面相互匹配的第二楔形面，所述止挡部在所述弹性件的弹力作用与具有所述第一楔形面的所述第一卡持件抵接时，所述第一楔形面和所述第二楔形面相互贴合以限制所述止挡部相对于所述第一卡槽的槽口的位置。
  23. 根据权利要求17-22任一项所述的螺旋桨安装结构，其特征在于，所述止挡部具有多个，且在所述锁定件的周向间隔分布。
  24. 根据权利要求17-22任一项所述的螺旋桨安装结构，其特征在于，所述锁定件还具有沿所述电机轴的径向向外伸出的手持部。
  25. 根据权利要求24所述的螺旋桨安装结构，其特征在于，所述手持部的个数为偶数个，且相对于所述电机轴对称设置。
  26. 根据权利要求24所述的螺旋桨安装结构，其特征在于，所述手持部位于所述凹槽内。
  27. 根据权利要求24所述的螺旋桨安装结构，其特征在于，所述手持部上设置有防滑结构。
  28. 根据权利要求1-6任一项所述的螺旋桨安装结构，其特征在于，所述弹性件的一端与所述电机的端面连接，另一端和所述锁定件连接。
  29. 根据权利要求28所述的螺旋桨安装结构，其特征在于，所述弹性件和所述电机轴同轴设置。
  30. 根据权利要求28所述的螺旋桨安装结构，其特征在于，所述弹性件为弹簧。
  31. 根据权利要求30所述的螺旋桨安装结构，其特征在于，所述弹性件为塔形弹簧。
  32. 根据权利要求30或31所述的螺旋桨安装结构，其特征在于，所述弹性件为变径弹簧。
  33. 一种螺旋桨，其特征在于，包括用于安装在电机的电机轴上的连接组件和至少一个桨叶，所述桨叶设置在所述连接组件上，所述连接组件包括用于和所述电机上的螺旋桨安装结构旋转卡合的环形连接件。
  34. 根据权利要求33所述的螺旋桨，其特征在于，所述环形连接件 具有环形壁和沿所述环形壁周向设置的至少一个第二卡持件，所述第二卡持件用于和所述螺旋桨安装结构旋转卡合。
  35. 根据权利要求34所述的螺旋桨，其特征在于，所述第二卡持件向外凸出于所述环形壁的外壁；或者，所述第二卡持件向内凸出于所述环形壁的内壁。
  36. 根据权利要求34所述的螺旋桨，其特征在于，所述环形连接件上设置有至少两个第二卡持件，且至少两个所述第二卡持件间隔设置。
  37. 根据权利要求36所述的螺旋桨，其特征在于，至少两个所述第二卡持件相对于所述环形连接件的轴向中心对称。
  38. 根据权利要求37所述的螺旋桨，其特征在于，所有所述第二卡持件均位于所述环形连接件的沿轴向的同一高度。
  39. 根据权利要求34所述的螺旋桨，其特征在于，所述螺旋桨安装结构上设置有沿所述电机轴的径向凸出的卡合结构，所述第二卡持件上形成沿所述环形连接件的周向延伸的第二卡槽，所述第二卡槽用于和所述卡合结构旋转卡合。
  40. 根据权利要求39所述的螺旋桨，其特征在于，所述第二卡持件为至少两个，不同第二卡持件上的第二卡槽具有不同尺寸。
  41. 根据权利要求40所述的螺旋桨，其特征在于，所述第二卡槽包括位于所述第二卡持件上的第三挡边，所述第三挡边沿所述环形连接件的周向延伸，所述螺旋桨安装结构的卡合结构和所述第二卡槽旋转卡合时，所述第三挡边位于所述螺旋桨安装结构的卡合结构的临近所述电机的一侧。
  42. 根据权利要求41所述的螺旋桨，其特征在于，所述卡槽还包括和所述第三挡边连接的第四挡边，所述第四挡边位于所述第三挡边的一端并沿所述环形连接件的轴向凸出，所述第四挡边用于限制所述螺旋桨安装结构的卡合结构在所述第二卡槽内的旋转角度。
  43. 根据权利要求42所述的螺旋桨，其特征在于，每个所述第四挡边均位于对应的所述第三挡边的同一端。
  44. 根据权利要求33-43任一项所述的螺旋桨，其特征在于，所述环形连接件上还设置有用于和所述电机的电机轴连接的轴套。
  45. 根据权利要求44所述的螺旋桨，其特征在于，所述轴套的轴孔边缘具有倒角。
  46. 根据权利要求33-43任一项所述的螺旋桨，其特征在于，所述环形连接件上具有朝向所述电机方向凸出的第二抵持部，所述第二抵持部用于从所述电机的电机轴轴向抵持所述螺旋桨安装结构。
  47. 根据权利要求46所述的螺旋桨，其特征在于，所述第二抵持部呈十字状交错设置在所述环形连接件的内侧。
  48. 根据权利要求33-43任一项所述的螺旋桨，其特征在于，所述环形连接件上设置有夹持部，所述桨叶的根部固定在所述夹持部上。
  49. 根据权利要求48所述的螺旋桨，其特征在于，所述连接组件还包括上夹持件，所述上夹持件用于和所述夹持部共同夹持所述桨叶的根部。
  50. 根据权利要求49所述的螺旋桨，其特征在于，所述桨叶和所述连接组件之间为可转动连接。
  51. 根据权利要求50所述的螺旋桨，其特征在于，所述桨叶的根部具有销孔，所述桨叶可绕所述销孔转动，以旋转至折叠状态或者工作状态。
  52. 根据权利要求51所述的螺旋桨，其特征在于，所述连接组件还包括与所述销孔匹配的定位件，所述上夹持件设置有第一定位孔，所述夹持部设有第二定位孔，所述第一定位孔和所述第二定位孔的位置相互对应，所述定位件依次穿过所述第一定位孔、所述销孔和所述第二定位孔，以使所述连接组件和所述桨叶固定在一起。
  53. 根据权利要求52所述的螺旋桨，其特征在于，所述定位件为销轴、塞打螺丝或者螺纹紧固件中的至少一种。
  54. 根据权利要求52所述的螺旋桨，其特征在于，所述第二定位孔为光孔、螺纹孔或者沉头孔至少一种。
  55. 根据权利要求52所述的螺旋桨，其特征在于，所述上夹持件包括具有凹腔的本体和设置在所述凹腔内的缓冲垫，所述第一定位孔设置在所述缓冲垫上。
  56. 根据权利要求55所述的螺旋桨，其特征在于，所述凹腔和所述缓冲垫的数量均与所述桨叶的数量相同。
  57. 根据权利要求55所述的螺旋桨，其特征在于，所述缓冲垫为硅橡胶垫。
  58. 根据权利要求52-57任一项所述的螺旋桨，其特征在于，所述定位件为销轴，所述第一定位孔和所述定位件之间过盈配合。
  59. 根据权利要求52-57任一项所述的螺旋桨，其特征在于，所述定位件为销轴，且所述定位件的插入所述第一定位孔的一端的直径大于所述销轴的其余部分的直径。
  60. 根据权利要求49-57任一项所述的螺旋桨，其特征在于，所述上夹持件和所述环形连接件之间通过螺纹紧固件进行连接。
  61. 根据权利要求60所述的螺旋桨，其特征在于，所述定位件为螺纹紧固件，所述上夹持件和所述环形连接件之间通过所述定位件连接，且所述定位件的与所述轴孔配合的部位具有光滑外壁。
  62. 根据权利要求61所述的螺旋桨，其特征在于，所述上夹持件上设置有至少一个与所述电机轴平行的凸台，所述凸台上设置有螺纹孔，所述环形连接件上设置有与所述螺纹孔对应的安装孔，所述螺纹紧固件通过所述安装孔伸入所述螺纹孔内部，以连接所述上夹持件和所述环形连接件。
  63. 根据权利要求49-57任一项所述的螺旋桨，其特征在于，所述上夹持件和所述桨叶的根部之间，以及所述夹持部与所述桨叶的根部之间的至少一者设置有垫片，所述垫片和所述桨叶贴合。
  64. 根据权利要求63所述的螺旋桨，其特征在于，所述垫片为光滑耐磨件。
  65. 根据权利要求64所述的螺旋桨，其特征在于，所述垫片为铁氟龙垫片。
  66. 根据权利要求50-57任一项所述的螺旋桨，其特征在于，所述上夹持件上设置有至少一个限位部，所述限位部用于限制所述桨叶的转动角度。
  67. 根据权利要求66所述的螺旋桨，其特征在于，所述限位部设置在所述上夹持件的底面，并朝向所述电机凸出。
  68. 根据权利要求66所述的螺旋桨，其特征在于，每个所述桨叶均 对应设置有两个所述限位部，且两个所述限位部分别设置在所述桨叶的旋转方向的两侧。
  69. 根据权利要求33-43任一项所述的螺旋桨，其特征在于，所述桨叶的数量为两个，且两个所述桨叶对称设置。
  70. 一种动力套装，其特征在于，包括螺旋桨安装结构和螺旋桨中的至少一者以及电机，所述螺旋桨通过所述螺旋桨安装结构连接至所述电机上；
    其中，所述螺旋桨安装结构用于将螺旋桨可拆卸的安装在电机上，所述螺旋桨安装结构包括安装座、锁定件和弹性件；所述安装座固定于所述电机的端面上，且所述安装座穿过所述电机的电机轴，所述安装座用于和所述螺旋桨旋转卡合，所述弹性件和所述锁定件连接，且所述弹性件用于沿所述电机轴的轴向向所述锁定件施加弹力，以使所述锁定件至少部分挡设在所述螺旋桨的卡合方向外侧；
    所述螺旋桨，包括用于安装在所述电机的电机轴上的连接组件和至少一个桨叶，所述桨叶设置在所述连接组件上，所述连接组件包括用于和所述电机上的螺旋桨安装结构旋转卡合的环形连接件。
  71. 根据权利要求70所述的动力套装，其特征在于，所述安装座为围设在所述电机轴的外侧的环形件，且所述安装座沿周向设置有至少一个第一卡持件，所述第一卡持件用于和所述螺旋桨旋转卡合。
  72. 根据权利要求71所述的动力套装，其特征在于，所述第一卡持件向外凸出于所述安装座的外壁；或者，所述第一卡持件向内凸出于所述安装座的内壁。
  73. 根据权利要求72所述的动力套装，其特征在于，所述安装座上设置有至少两个第一卡持件，且至少两个所述第一卡持件间隔设置。
  74. 根据权利要求73所述的动力套装，其特征在于，至少两个所述第一卡持件相对于所述电机轴的轴向中心对称。
  75. 根据权利要求74所述的动力套装，其特征在于，所有所述第一卡持件均位于所述安装座的沿轴向的同一高度。
  76. 根据权利要求71-75任一项所述的动力套装，其特征在于，所述螺旋桨具有沿径向凸出的卡合结构，所述第一卡持件上形成沿所述安装座 的周向延伸的第一卡槽，所述第一卡槽用于和所述卡合结构旋转卡合。
  77. 根据权利要求76所述的动力套装，其特征在于，所述第一卡持件为至少两个，不同第一卡持件上的第一卡槽具有不同尺寸。
  78. 根据权利要求76所述的动力套装，其特征在于，所述第一卡槽为单向卡槽；或者，所述第一卡持件为两个，且所述第一卡槽为双向卡槽。
  79. 根据权利要求76所述的动力套装，其特征在于，所述第一卡槽包括位于所述第一卡持件上的第一挡边，所述第一挡边沿所述安装座周向延伸，所述螺旋桨和所述第一卡槽旋转卡合时，所述第一挡边位于所述螺旋桨的卡合结构的远离所述电机的一侧。
  80. 根据权利要求79所述的动力套装，其特征在于，所述第一卡槽还包括和所述第一挡边连接的第二挡边，所述第二挡边位于所述第一挡边的一端并沿所述电机轴的轴向凸出，所述第二挡边用于限制所述螺旋桨的卡合结构在所述第一卡槽内的旋转角度。
  81. 根据权利要求80所述的动力套装，其特征在于，每个所述第二挡边均位于对应的所述第一挡边的同一端。
  82. 根据权利要求71-75任一项所述的动力套装，其特征在于，所述安装座具有向远离所述电机方向凸出的抵持部，所述抵持部用于抵持所述螺旋桨。
  83. 根据权利要求82所述的动力套装，其特征在于，所述抵持部为所述安装座的远离所述电机一侧的端面。
  84. 根据权利要求76所述的动力套装，其特征在于，所述安装座上设置有凹槽，所述锁定件位于所述凹槽内并可沿所述电机轴的轴向移动。
  85. 根据权利要求84所述的动力套装，其特征在于，所述凹槽的槽口朝向所述电机。
  86. 根据权利要求85所述的动力套装，其特征在于，所述锁定件具有至少一个用于止挡在所述第一卡槽的槽口的止挡部。
  87. 根据权利要求86所述的动力套装，其特征在于，所述止挡部与所述电机轴的轴心之间的径向距离与所述第一卡持件与所述电机轴的轴心的径向距离相同。
  88. 根据权利要求87所述的动力套装，其特征在于，所述止挡部止 挡在相邻两个所述第一卡持件之间。
  89. 根据权利要求88所述的动力套装，其特征在于，所述止挡部止挡在所述第一卡槽的槽口时，所述止挡部和所述第一卡持件之间相互抵接。
  90. 根据权利要求89所述的动力套装，其特征在于，所述止挡部与形成所述第一卡槽的第一卡持件相邻的第一卡持件相互抵接。
  91. 根据权利要求90所述的动力套装，其特征在于，与形成所述第一卡槽的第一卡持件相邻的所述第一卡持件具有倾斜向下的第一楔形面，所述止挡部上设置有与所述第一楔形面相互匹配的第二楔形面，所述止挡部在所述弹性件的弹力作用与具有所述第一楔形面的所述第一卡持件抵接时，所述第一楔形面和所述第二楔形面相互贴合以限制所述止挡部相对于所述第一卡槽的槽口的位置。
  92. 根据权利要求86-91任一项所述的动力套装，其特征在于，所述止挡部具有多个，且在所述锁定件的周向间隔分布。
  93. 根据权利要求86-91任一项所述动力套装，其特征在于，所述锁定件还具有沿所述电机轴的径向向外伸出的手持部。
  94. 根据权利要求93所述的动力套装，其特征在于，所述手持部的个数为偶数个，且相对于所述电机轴对称设置。
  95. 根据权利要求93所述的动力套装，其特征在于，所述手持部位于所述凹槽内。
  96. 根据权利要求93所述的动力套装，其特征在于，所述手持部上设置有防滑结构。
  97. 根据权利要求70-75任一项所述的动力套装，其特征在于，所述弹性件的一端与所述电机的端面连接，另一端和所述锁定件连接。
  98. 根据权利要求97所述的动力套装，其特征在于，所述弹性件和所述电机轴同轴设置。
  99. 根据权利要求97所述的动力套装，其特征在于，所述弹性件为弹簧。
  100. 根据权利要求99所述的动力套装，其特征在于，所述弹性件为塔形弹簧。
  101. 根据权利要求99或100所述的动力套装，其特征在于，所述弹性件为变径弹簧。
  102. 根据权利要求70所述的动力套装，其特征在于，所述环形连接件具有环形壁和沿所述环形壁周向设置的至少一个第二卡持件，所述第二卡持件用于和所述螺旋桨安装结构旋转卡合。
  103. 根据权利要求102所述的动力套装，其特征在于，所述第二卡持件向外凸出于所述环形壁的外壁；或者，所述第二卡持件向内凸出于所述环形壁的内壁。
  104. 根据权利要求102所述的动力套装，其特征在于，所述环形连接件上设置有至少两个第二卡持件，且至少两个所述第二卡持件间隔设置。
  105. 根据权利要求104所述的动力套装，其特征在于，至少两个所述第二卡持件相对于所述环形连接件的轴向中心对称。
  106. 根据权利要求105所述的动力套装，其特征在于，所有所述第二卡持件均位于所述环形连接件的沿轴向的同一高度。
  107. 根据权利要求102所述的动力套装，其特征在于，所述螺旋桨安装结构上设置有沿所述电机轴的径向凸出的卡合结构，所述第二卡持件上形成沿所述环形连接件的周向延伸的第二卡槽，所述第二卡槽用于和所述卡合结构旋转卡合。
  108. 根据权利要求107所述的动力套装，其特征在于，所述第二卡持件为至少两个，不同第二卡持件上的第二卡槽具有不同尺寸。
  109. 根据权利要求108所述的动力套装，其特征在于，所述第二卡槽包括位于所述第二卡持件上的第三挡边，所述第三挡边沿所述环形连接件的周向延伸，所述螺旋桨安装结构的卡合结构和所述第二卡槽旋转卡合时，所述第三挡边位于所述螺旋桨安装结构的卡合结构的临近所述电机的一侧。
  110. 根据权利要求109所述的动力套装，其特征在于，所述卡槽还包括和所述第三挡边连接的第四挡边，所述第四挡边位于所述第三挡边的一端并沿所述环形连接件的轴向凸出，所述第四挡边用于限制所述螺旋桨安装结构的卡合结构在所述第二卡槽内的旋转角度。
  111. 根据权利要求110所述的动力套装，其特征在于，每个所述第四挡边均位于对应的所述第三挡边的同一端。
  112. 根据权利要求102-111任一项所述的动力套装，其特征在于，所述环形连接件上还设置有用于和所述电机的电机轴连接的轴套。
  113. 根据权利要求112所述的动力套装，其特征在于，所述轴套的轴孔边缘具有倒角。
  114. 根据权利要求102-111任一项所述的动力套装，其特征在于，所述环形连接件上具有朝向所述电机方向凸出的第二抵持部，所述第二抵持部用于从所述电机的电机轴轴向抵持所述螺旋桨安装结构。
  115. 根据权利要求114所述的动力套装，其特征在于，所述第二抵持部呈十字状交错设置在所述环形连接件的内侧。
  116. 根据权利要求102-111任一项所述的动力套装，其特征在于，所述环形连接件上设置有夹持部，所述桨叶的根部固定在所述夹持部上。
  117. 根据权利要求116所述的动力套装，其特征在于，所述连接组件还包括上夹持件，所述上夹持件用于和所述夹持部共同夹持所述桨叶的根部。
  118. 根据权利要求117所述的动力套装，其特征在于，所述桨叶和所述连接组件之间为可转动连接。
  119. 根据权利要求118所述的动力套装，其特征在于，所述桨叶的根部具有销孔，所述桨叶可绕所述销孔转动，以旋转至折叠状态或者工作状态。
  120. 根据权利要求119所述的动力套装，其特征在于，所述连接组件还包括与所述销孔匹配的定位件，所述上夹持件设置有第一定位孔，所述夹持部设有第二定位孔，所述第一定位孔和所述第二定位孔的位置相互对应，所述定位件依次穿过所述第一定位孔、所述销孔和所述第二定位孔，以使所述连接组件和所述桨叶固定在一起。
  121. 根据权利要求120所述的动力套装，其特征在于，所述定位件为销轴、塞打螺丝或者螺纹紧固件中的至少一种。
  122. 根据权利要求120所述的动力套装，其特征在于，所述第二定位孔为光孔、螺纹孔或者沉头孔至少一种。
  123. 根据权利要求120所述的动力套装，其特征在于，所述上夹持件包括具有凹腔的本体和设置在所述凹腔内的缓冲垫，所述第一定位孔设置在所述缓冲垫上。
  124. 根据权利要求123所述的动力套装，其特征在于，所述凹腔和所述缓冲垫的数量均与所述桨叶的数量相同。
  125. 根据权利要求123所述的动力套装，其特征在于，所述缓冲垫为硅橡胶垫。
  126. 根据权利要求120-125任一项所述的动力套装，其特征在于，所述定位件为销轴，所述第一定位孔和所述定位件之间过盈配合。
  127. 根据权利要求120-125任一项所述的动力套装，其特征在于，所述定位件为销轴，且所述定位件的插入所述第一定位孔的一端的直径大于所述销轴的其余部分的直径。
  128. 根据权利要求117-125任一项所述的动力套装，其特征在于，所述上夹持件和所述环形连接件之间通过螺纹紧固件进行连接。
  129. 根据权利要求128所述的动力套装，其特征在于，所述定位件为螺纹紧固件，所述上夹持件和所述环形连接件之间通过所述定位件连接，且所述定位件的与所述轴孔配合的部位具有光滑外壁。
  130. 根据权利要求129所述的动力套装，其特征在于，所述上夹持件上设置有至少一个与所述电机轴平行的凸台，所述凸台上设置有螺纹孔，所述环形连接件上设置有与所述螺纹孔对应的安装孔，所述螺纹紧固件通过所述安装孔伸入所述螺纹孔内部，以连接所述上夹持件和所述环形连接件。
  131. 根据权利要求117-125任一项所述的动力套装，其特征在于，所述上夹持件和所述桨叶的根部之间，以及所述夹持部与所述桨叶的根部之间的至少一者设置有垫片，所述垫片和所述桨叶贴合。
  132. 根据权利要求131所述的动力套装，其特征在于，所述垫片为光滑耐磨件。
  133. 根据权利要求132所述的动力套装，其特征在于，所述垫片为铁氟龙垫片。
  134. 根据权利要求118-125任一项所述的动力套装，其特征在于， 所述上夹持件上设置有至少一个限位部，所述限位部用于限制所述桨叶的转动角度。
  135. 根据权利要求134所述的动力套装，其特征在于，所述限位部设置在所述上夹持件的底面，并朝向所述电机凸出。
  136. 根据权利要求134所述的动力套装，其特征在于，每个所述桨叶均对应设置有两个所述限位部，且两个所述限位部分别设置在所述桨叶的旋转方向的两侧。
  137. 根据权利要求102-111任一项所述的动力套装，其特征在于，所述桨叶的数量为两个，且两个所述桨叶对称设置。
  138. 根据权利要求70-75任一项所述的动力套装，其特征在于，所述电机的电机轴末端具有倒角。
  139. 一种无人飞行器，其特征在于，包括机体和至少一个动力套装，所述机体包括机架和与所述机架连接的机臂，所述动力套装设置在所述机臂上；
    所述动力套装包括螺旋桨安装结构和螺旋桨中的至少一者以及电机，所述螺旋桨通过所述螺旋桨安装结构连接至所述电机上；
    其中，所述螺旋桨安装结构用于将螺旋桨可拆卸的安装在电机上，所述螺旋桨安装结构包括安装座、锁定件和弹性件；所述安装座固定于所述电机的端面上，且所述安装座穿过所述电机的电机轴，所述安装座用于和所述螺旋桨旋转卡合，所述弹性件和所述锁定件连接，且所述弹性件用于沿所述电机轴的轴向向所述锁定件施加弹力，以使所述锁定件至少部分挡设在所述螺旋桨的卡合方向外侧；
    所述螺旋桨，包括用于安装在电机的电机轴上的连接组件和至少一个桨叶，所述桨叶设置在所述连接组件上，所述连接组件包括用于和所述电机上的螺旋桨安装结构旋转卡合的环形连接件。
  140. 根据权利要求139所述的无人飞行器，其特征在于，所述安装座为围设在所述电机轴的外侧的环形件，且所述安装座沿周向设置有至少一个第一卡持件，所述第一卡持件用于和所述螺旋桨旋转卡合。
  141. 根据权利要求140所述的无人飞行器，其特征在于，所述第一卡持件向外凸出于所述安装座的外壁；或者，所述第一卡持件向内凸出于 所述安装座的内壁。
  142. 根据权利要求141所述的无人飞行器，其特征在于，所述安装座上设置有至少两个第一卡持件，且至少两个所述第一卡持件间隔设置。
  143. 根据权利要求142所述的无人飞行器，其特征在于，至少两个所述第一卡持件相对于所述电机轴的轴向中心对称。
  144. 根据权利要求143所述的无人飞行器，其特征在于，所有所述第一卡持件均位于所述安装座的沿轴向的同一高度。
  145. 根据权利要求140-144任一项所述的无人飞行器，其特征在于，所述螺旋桨具有沿径向凸出的卡合结构，所述第一卡持件上形成沿所述安装座的周向延伸的第一卡槽，所述第一卡槽用于和所述卡合结构旋转卡合。
  146. 根据权利要求145所述的无人飞行器，其特征在于，所述第一卡持件为至少两个，不同第一卡持件上的第一卡槽具有不同尺寸。
  147. 根据权利要求145所述的无人飞行器，其特征在于，所述第一卡槽为单向卡槽；或者，所述第一卡持件为两个，且所述第一卡槽为双向卡槽。
  148. 根据权利要求145所述的无人飞行器，其特征在于，所述第一卡槽包括位于所述第一卡持件上的第一挡边，所述第一挡边沿所述安装座周向延伸，所述螺旋桨和所述第一卡槽旋转卡合时，所述第一挡边位于所述螺旋桨的卡合结构的远离所述电机的一侧。
  149. 根据权利要求148所述的无人飞行器，其特征在于，所述第一卡槽还包括和所述第一挡边连接的第二挡边，所述第二挡边位于所述第一挡边的一端并沿所述电机轴的轴向凸出，所述第二挡边用于限制所述螺旋桨的卡合结构在所述第一卡槽内的旋转角度。
  150. 根据权利要求149所述的无人飞行器，其特征在于，每个所述第二挡边均位于对应的所述第一挡边的同一端。
  151. 根据权利要求140-144任一项所述的无人飞行器，其特征在于，所述安装座具有向远离所述电机方向凸出的抵持部，所述抵持部用于抵持所述螺旋桨。
  152. 根据权利要求151所述的无人飞行器，其特征在于，所述抵持 部为所述安装座的远离所述电机一侧的端面。
  153. 根据权利要求145所述的无人飞行器，其特征在于，所述安装座上设置有凹槽，所述锁定件位于所述凹槽内并可沿所述电机轴的轴向移动。
  154. 根据权利要求153所述的无人飞行器，其特征在于，所述凹槽的槽口朝向所述电机。
  155. 根据权利要求154所述的无人飞行器，其特征在于，所述锁定件具有至少一个用于止挡在所述第一卡槽的槽口的止挡部。
  156. 根据权利要求155所述的无人飞行器，其特征在于，所述止挡部与所述电机轴的轴心之间的径向距离与所述第一卡持件与所述电机轴的轴心的径向距离相同。
  157. 根据权利要求156所述的无人飞行器，其特征在于，所述止挡部止挡在相邻两个所述第一卡持件之间。
  158. 根据权利要求157所述的无人飞行器，其特征在于，所述止挡部止挡在所述第一卡槽的槽口时，所述止挡部和所述第一卡持件之间相互抵接。
  159. 根据权利要求158所述的无人飞行器，其特征在于，所述止挡部与形成所述第一卡槽的第一卡持件相邻的第一卡持件相互抵接。
  160. 根据权利要求159所述的无人飞行器，其特征在于，与形成所述第一卡槽的第一卡持件相邻的所述第一卡持件具有倾斜向下的第一楔形面，所述止挡部上设置有与所述第一楔形面相互匹配的第二楔形面，所述止挡部在所述弹性件的弹力作用与具有所述第一楔形面的所述第一卡持件抵接时，所述第一楔形面和所述第二楔形面相互贴合以限制所述止挡部相对于所述第一卡槽的槽口的位置。
  161. 根据权利要求155-160任一项所述的无人飞行器，其特征在于，所述止挡部具有多个，且在所述锁定件的周向间隔分布。
  162. 根据权利要求155-160任一项所述的无人飞行器，其特征在于，所述锁定件还具有沿所述电机轴的径向向外伸出的手持部。
  163. 根据权利要求162所述的无人飞行器，其特征在于，所述手持部的个数为偶数个，且相对于所述电机轴对称设置。
  164. 根据权利要求162所述的无人飞行器，其特征在于，所述手持部位于所述凹槽内。
  165. 根据权利要求162所述的无人飞行器，其特征在于，所述手持部上设置有防滑结构。
  166. 根据权利要求140-144任一项所述的无人飞行器，其特征在于，所述弹性件的一端与所述电机的端面连接，另一端和所述锁定件连接。
  167. 根据权利要求166所述的无人飞行器，其特征在于，所述弹性件和所述电机轴同轴设置。
  168. 根据权利要求166所述的无人飞行器，其特征在于，所述弹性件为弹簧。
  169. 根据权利要求168所述的无人飞行器，其特征在于，所述弹性件为塔形弹簧。
  170. 根据权利要求168或169所述的无人飞行器，其特征在于，所述弹性件为变径弹簧。
  171. 根据权利要求139所述的无人飞行器，其特征在于，所述环形连接件具有环形壁和沿所述环形壁周向设置的至少一个第二卡持件，所述第二卡持件用于和所述螺旋桨安装结构旋转卡合。
  172. 根据权利要求171所述的无人飞行器，其特征在于，所述第二卡持件向外凸出于所述环形壁的外壁；或者，所述第二卡持件向内凸出于所述环形壁的内壁。
  173. 根据权利要求171所述的无人飞行器，其特征在于，所述环形连接件上设置有至少两个第二卡持件，且至少两个所述第二卡持件间隔设置。
  174. 根据权利要求173所述的无人飞行器，其特征在于，至少两个所述第二卡持件相对于所述环形连接件的轴向中心对称。
  175. 根据权利要求174所述的无人飞行器，其特征在于，所有所述第二卡持件均位于所述环形连接件的沿轴向的同一高度。
  176. 根据权利要求171所述的无人飞行器，其特征在于，所述螺旋桨安装结构上设置有沿所述电机轴的径向凸出的卡合结构，所述第二卡持件上形成沿所述环形连接件的周向延伸的第二卡槽，所述第二卡槽用于和 所述卡合结构旋转卡合。
  177. 根据权利要求176所述的无人飞行器，其特征在于，所述第二卡持件为至少两个，不同第二卡持件上的第二卡槽具有不同尺寸。
  178. 根据权利要求177所述的无人飞行器，其特征在于，所述第二卡槽包括位于所述第二卡持件上的第三挡边，所述第三挡边沿所述环形连接件的周向延伸，所述螺旋桨安装结构的卡合结构和所述第二卡槽旋转卡合时，所述第三挡边位于所述螺旋桨安装结构的卡合结构的临近所述电机的一侧。
  179. 根据权利要求178所述的无人飞行器，其特征在于，所述卡槽还包括和所述第三挡边连接的第四挡边，所述第四挡边位于所述第三挡边的一端并沿所述环形连接件的轴向凸出，所述第四挡边用于限制所述螺旋桨安装结构的卡合结构在所述第二卡槽内的旋转角度。
  180. 根据权利要求179所述的无人飞行器，其特征在于，每个所述第四挡边均位于对应的所述第三挡边的同一端。
  181. 根据权利要求171-180任一项所述的无人飞行器，其特征在于，所述环形连接件上还设置有用于和所述电机的电机轴连接的轴套。
  182. 根据权利要求181所述的无人飞行器，其特征在于，所述轴套的轴孔边缘具有倒角。
  183. 根据权利要求171-180任一项所述的无人飞行器，其特征在于，所述环形连接件上具有朝向所述电机方向凸出的第二抵持部，所述第二抵持部用于从所述电机的电机轴轴向抵持所述螺旋桨安装结构。
  184. 根据权利要求183所述的无人飞行器，其特征在于，所述第二抵持部呈十字状交错设置在所述环形连接件的内侧。
  185. 根据权利要求171-180任一项所述的无人飞行器，其特征在于，所述环形连接件上设置有夹持部，所述桨叶的根部固定在所述夹持部上。
  186. 根据权利要求185所述的无人飞行器，其特征在于，所述连接组件还包括上夹持件，所述上夹持件用于和所述夹持部共同夹持所述桨叶的根部。
  187. 根据权利要求186所述的无人飞行器，其特征在于，所述桨叶和所述连接组件之间为可转动连接。
  188. 根据权利要求187所述的无人飞行器，其特征在于，所述桨叶的根部具有销孔，所述桨叶可绕所述销孔转动，以旋转至折叠状态或者工作状态。
  189. 根据权利要求188所述的无人飞行器，其特征在于，所述连接组件还包括与所述销孔匹配的定位件，所述上夹持件设置有第一定位孔，所述夹持部设有第二定位孔，所述第一定位孔和所述第二定位孔的位置相互对应，所述定位件依次穿过所述第一定位孔、所述销孔和所述第二定位孔，以使所述连接组件和所述桨叶固定在一起。
  190. 根据权利要求189所述的无人飞行器，其特征在于，所述定位件为销轴、塞打螺丝或者螺纹紧固件中的至少一种。
  191. 根据权利要求189所述的无人飞行器，其特征在于，所述第二定位孔为光孔、螺纹孔或者沉头孔至少一种。
  192. 根据权利要求189所述的无人飞行器，其特征在于，所述上夹持件包括具有凹腔的本体和设置在所述凹腔内的缓冲垫，所述第一定位孔设置在所述缓冲垫上。
  193. 根据权利要求192所述的无人飞行器，其特征在于，所述凹腔和所述缓冲垫的数量均与所述桨叶的数量相同。
  194. 根据权利要求192所述的无人飞行器，其特征在于，所述缓冲垫为硅橡胶垫。
  195. 根据权利要求190-194任一项所述的无人飞行器，其特征在于，所述定位件为销轴，所述第一定位孔和所述定位件之间过盈配合。
  196. 根据权利要求190-194任一项所述的无人飞行器，其特征在于，所述定位件为销轴，且所述定位件的插入所述第一定位孔的一端的直径大于所述销轴的其余部分的直径。
  197. 根据权利要求186-194任一项所述的无人飞行器，其特征在于，所述上夹持件和所述环形连接件之间通过螺纹紧固件进行连接。
  198. 根据权利要求197所述的无人飞行器，其特征在于，所述定位件为螺纹紧固件，所述上夹持件和所述环形连接件之间通过所述定位件连接，且所述定位件的与所述轴孔配合的部位具有光滑外壁。
  199. 根据权利要求198所述的无人飞行器，其特征在于，所述上夹 持件上设置有至少一个与所述电机轴平行的凸台，所述凸台上设置有螺纹孔，所述环形连接件上设置有与所述螺纹孔对应的安装孔，所述螺纹紧固件通过所述安装孔伸入所述螺纹孔内部，以连接所述上夹持件和所述环形连接件。
  200. 根据权利要求186-194任一项所述的无人飞行器，其特征在于，所述上夹持件和所述桨叶的根部之间，以及所述夹持部与所述桨叶的根部之间的至少一者设置有垫片，所述垫片和所述桨叶贴合。
  201. 根据权利要求200所述的无人飞行器，其特征在于，所述垫片为光滑耐磨件。
  202. 根据权利要求201所述的无人飞行器，其特征在于，所述垫片为铁氟龙垫片。
  203. 根据权利要求187-194任一项所述的无人飞行器，其特征在于，所述上夹持件上设置有至少一个限位部，所述限位部用于限制所述桨叶的转动角度。
  204. 根据权利要求203所述的无人飞行器，其特征在于，所述限位部设置在所述上夹持件的底面，并朝向所述电机凸出。
  205. 根据权利要求203所述的无人飞行器，其特征在于，每个所述桨叶均对应设置有两个所述限位部，且两个所述限位部分别设置在所述桨叶的旋转方向的两侧。
  206. 根据权利要求171-180任一项所述的无人飞行器，其特征在于，所述桨叶的数量为两个，且两个所述桨叶对称设置。
  207. 根据权利要求139-144任一项所述的无人飞行器，其特征在于，所述电机的电机轴末端具有倒角。
  208. 根据权利要求139-144任一项所述的无人飞行器，其特征在于，所述动力套装的数量为至少两个，不同动力套装中的电机具有不同的转向。
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