WO2021134590A1 - Hélice, système de propulsion et aéronef sans pilote - Google Patents

Hélice, système de propulsion et aéronef sans pilote Download PDF

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Publication number
WO2021134590A1
WO2021134590A1 PCT/CN2019/130761 CN2019130761W WO2021134590A1 WO 2021134590 A1 WO2021134590 A1 WO 2021134590A1 CN 2019130761 W CN2019130761 W CN 2019130761W WO 2021134590 A1 WO2021134590 A1 WO 2021134590A1
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WO
WIPO (PCT)
Prior art keywords
propeller
mounting seat
retaining member
paddle
clip
Prior art date
Application number
PCT/CN2019/130761
Other languages
English (en)
Chinese (zh)
Inventor
都涛
陈鹏
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to PCT/CN2019/130761 priority Critical patent/WO2021134590A1/fr
Priority to CN201980052882.7A priority patent/CN112996721A/zh
Publication of WO2021134590A1 publication Critical patent/WO2021134590A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • 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
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B64C27/48—Root attachment to rotor head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00—Type of UAV
    • B64U10/10—Rotorcrafts

Definitions

  • the embodiments of the present invention relate to the technical field of unmanned aerial vehicles, in particular to propellers, power systems and unmanned aerial vehicles.
  • the propeller on the unmanned aerial vehicle usually needs to be connected with the motor, and the propeller rotates with the motor shaft under the action of the motor.
  • the blades of the propeller are generally consumables. When the blades are damaged, users need to disassemble and replace the blades by themselves. Therefore, the blade is required to be easy to disassemble and assemble, and after it is installed, the blade is not prone to shooting.
  • the blades are sleeved on the extended shafts of the motor and can rotate coaxially with the extended shafts of the motors, but for motors without extended shafts, the blades are prone to yaw.
  • embodiments of the present invention provide a propeller, a power system, and an unmanned aerial vehicle.
  • One aspect of the embodiments of the present invention provides a propeller, which is used to detachably connect with a motor, including:
  • the blade assembly includes at least two blades and a blade clip for connecting the at least two blades together;
  • a mounting seat is detachably connected to the paddle clamp, and the mounting seat is configured to be detachably connected to the motor through a connector, and to rotate together with the rotor of the motor;
  • the mounting seat includes a base and a limiting shaft arranged in the middle of the base, the limiting shaft is arranged substantially perpendicular to the base, the paddle clamp is provided with a limiting recess, and the limiting shaft is connected to the limiting shaft.
  • the limiting recesses cooperate to prevent the blade assembly from swinging in the radial direction.
  • a second aspect of the embodiments of the present invention provides a power system, including a motor, a first propeller, and a second propeller; wherein the motor includes a rotor, and the rotor is provided with a mounting surface and a connecting portion on the mounting surface; the connection The part is used to cooperate with the connecting piece, so that the rotating surface can selectively install the first propeller or the second propeller;
  • the first propeller includes at least two blades
  • the second propeller includes a blade assembly and a mounting seat.
  • the blade assembly includes at least two blades and a blade clip for connecting the at least two blades together.
  • the mounting seat and the blade clip are detachable Ground connection; wherein, the mounting seat includes a base and a limit shaft provided in the middle of the base, the limit shaft is set substantially perpendicular to the base, the paddle clamp is provided with a limit recess, the limit shaft Cooperate with the limiting recess to prevent the blade assembly from swinging in the radial direction;
  • At least two of the blades can be detachably installed on the mounting surface through a connecting piece and the connecting portion, respectively, independently, and rotate together with the rotor of the motor;
  • the mounting seat is detachably mounted on the mounting surface through the connecting piece and the connecting portion, and rotates together with the rotor of the motor.
  • a third aspect of the embodiments of the present invention provides an unmanned aerial vehicle, including:
  • the power system as described above is installed on the fuselage;
  • the controller is installed on the body, and the controller is electrically connected with the motor;
  • the controller controls the working state of the motor to obtain corresponding flight power.
  • the propeller, power system and unmanned aerial vehicle provided by the embodiments of the present invention are provided with a mounting seat, the mounting seat is detachably connected to the motor, and a limit shaft is provided on the mounting seat, and the propeller clamp has a limit concave portion to limit the position.
  • the shaft cooperates with the limiting recess to prevent the blade assembly from swinging in the radial direction, and plays the anti-yaw effect of the extended shaft of the ordinary motor, so that the propeller can also be installed on the motor without an extended shaft, which improves the installation of the propeller.
  • Adaptability is provided with a mounting seat, the mounting seat is detachably connected to the motor, and a limit shaft is provided on the mounting seat, and the propeller clamp has a limit concave portion to limit the position.
  • the shaft cooperates with the limiting recess to prevent the blade assembly from swinging in the radial direction, and plays the anti-yaw effect of the extended shaft of the ordinary motor, so that the propeller can also be
  • FIG. 1 is a schematic diagram of the connection state of a propeller and a motor provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the structure of a motor and a mounting base provided by an embodiment of the present invention
  • Fig. 3 is a schematic diagram of an installation state of a motor and a mounting base provided by an embodiment of the present invention
  • FIG. 4 is a schematic diagram of the structure of a motor rotor provided by an embodiment of the present invention.
  • Figure 5 is a schematic structural diagram of a mounting seat provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the structure of the blade assembly and the blade clamp of the propeller provided by an embodiment of the present invention
  • Fig. 7 is a schematic structural diagram of a paddle clamp provided by an embodiment of the present invention.
  • Fig. 8 is a schematic structural diagram of a first propeller provided by another embodiment of the present invention.
  • Fig. 9 is a schematic structural diagram of an unmanned aerial vehicle provided by another embodiment of the present invention.
  • connection herein includes any direct and indirect means of connection. Therefore, if it is described in the text that a first device is connected to a second device, it means that the first device can be directly connected to the second device, or indirectly connected to the second device through other devices.
  • FIG. 1 is a schematic diagram of the connection state of a propeller and a motor provided by an embodiment of the present invention
  • Fig. 2 is a schematic diagram of the structure of a motor and a mounting base provided by an embodiment of the present invention
  • Fig. 3 is a schematic view of the motor and mounting base provided by an embodiment of the present invention Schematic diagram of the installation status.
  • this embodiment provides a propeller 100 for detachably connecting with a motor 200.
  • the propeller 100 includes a blade assembly 10 and a mounting seat 20.
  • the blade assembly 10 can be rotated by a power device to provide flight power, and the mounting seat 20 serves as an intermediate piece for connecting the blade assembly 10 with the motor 200.
  • the blade assembly 10 includes at least two blades 11 and a blade clamp 12 for connecting the at least two blades 11 together.
  • the two paddles 11 may be arranged in a straight line.
  • each paddle 11 may be evenly distributed around the paddle clamp 12, for example, three paddles.
  • the angle between the blade 11 and each blade 11 may be 120°.
  • the propeller clamp 12 may include an upper propeller clamp 121 and a lower propeller clamp 122.
  • the upper propeller clamp 121 and the lower propeller clamp 122 can be butted and then detachably butted, and the propeller blade 11 can be clamped between the upper propeller clamp 121 and the lower propeller clamp 122.
  • the upper paddle clamp 121, the paddle blade 11, and the lower paddle clamp 122 can be detachably connected together by a connecting piece, so as to facilitate the installation and replacement of the paddle blade 11.
  • the mounting base 20 is detachably connected with the paddle clamp 12, and the mounting base 20 is used to detachably connect with the motor 200 through the connecting member 30 and rotate together with the rotor 201 of the motor 200.
  • the mounting base 20 includes a base 21 and a limiting shaft 22 arranged in the middle of the base 21.
  • the limiting shaft 22 is arranged substantially perpendicular to the base 21.
  • the paddle clamp 12 is provided with a limiting recess, and the limiting shaft 22 is matched with the limiting recess. It is used to prevent the blade assembly 10 from swinging in the radial direction.
  • limiting shaft in this embodiment refers to a limiting member having a rotation axis. It may include at least one of the following: cylindrical shaft, truncated cone, and cone. As long as it can be partially inserted into the limiting recess, and under the limitation of the limiting recess, the blade assembly 10 cannot swing in the radial direction.
  • the limit shaft 22 is provided in the middle of the base 21, and it is not limited to that the bottom of the limit shaft 22 is directly connected to the middle of the base 21. It may also be that the limit shaft 22 is connected to the base 21 through an intermediate component. , But relative to the base 21, the limit shaft 22 is located in the middle of the base 21.
  • the limiting recess may be located in the middle of the paddle clamp 12, and the axis of the limiting shaft 22 may coincide with the rotation axis of the motor 200.
  • the rotation axis of the motor 200 and the rotation axis of the propeller can be coincident with the axis of the limit shaft 22, which can make the propeller more stable when rotating, and the rotor of the motor 200 can drive the blade assembly 10 to rotate stably.
  • the mounting base 20 and the propeller clamp 12 may be connected by a quick-release structure, or may be connected by a threaded fastener, which is not limited in this embodiment.
  • Fig. 4 is a schematic structural diagram of a motor rotor provided by an embodiment of the present invention; as shown in Figs. 3 and 4, the connecting member 30 may include at least one of the following: screws, bolts, and buckles.
  • the mounting base 20 and the motor 200 can be detachably connected to the motor 200 by screws.
  • the mounting base 20 and the motor 200 may be provided with screw holes, and the mounting base The first screw hole 20a on the 20 and the second screw hole 200a on the motor 200 are arranged opposite to each other, and a screw passes through the screw holes of the mounting base 20 and the motor 200 to detachably fix the mounting base 20 on the motor 200.
  • the number of the connecting member 30 may be at least two, and it is located at a non-center of the mounting base 20, so that the rotation of the motor 200 will not affect the stability of the connection between the mounting base 20 and the motor 200, and more preferably Yes, at least two connecting members 30 are symmetrically or evenly arranged around the center of the mounting base 20, so that the force of each connection point of the mounting base 20 and the motor 200 is balanced, which is beneficial to reduce individual connections due to unbalanced forces. There is a risk of loosening of the component 30, the mounting base 20 and the motor 200 are fixed and stable, and the rotation of the rotor of the motor 200 can drive the mounting base 20 to rotate together.
  • the limiting shaft 22 of the mounting base 20 may be provided on the surface of the base 21 away from the motor 200, and the axis of the limiting shaft 22 may be substantially perpendicular to the corresponding mounting surface on the mounting base 20, so that after the blade assembly 10 is installed, the propeller The rotation plane of the blade assembly 10 is substantially parallel to the mounting surface of the mounting seat 20.
  • the limiting recess on the paddle clamp 12 may be a through hole or a groove, as long as the limiting shaft 22 can be inserted. After being inserted into the limiting recess, the limiting shaft 22 can completely abut against the inner wall of the limiting recess in the circumferential direction, so that the cooperation of the limiting shaft 22 and the limiting recess can effectively prevent the blade assembly 10 from deflecting in the radial direction.
  • the unmanned aerial vehicle when the unmanned aerial vehicle is flying, if the propeller blade assembly 10 yaws, it will seriously affect the flight balance of the unmanned aerial vehicle, and also make the unmanned aerial vehicle unable to fly according to the predetermined path.
  • the blade assembly 10 can be installed on a motor without an extension shaft, ensuring that the blade assembly 10 is installed on a motor without an extension shaft. The safety of the unmanned aerial vehicle when it is on the motor.
  • the limit shaft 22 can be directly connected with the base 21, and the connection relationship between the limit shaft 22 and the base 21 can include at least one of the following: integral injection molding, glue bonding, welding, clamping, etc., in order to prevent the limit shaft 22 from being on the base 21 When loosening occurs, the radial limiting function of the limiting shaft 22 is lost, and the limiting shaft 22 can be non-detachably connected to the base 21 by any of the above methods.
  • the base 21 is a plastic part
  • the limit shaft 22 is a metal part
  • the limit shaft 22 and the plastic part are fixedly connected together by insert molding.
  • the limit shaft 22 can be a metal piece with high strength and rigidity, which has strong resistance to deformation and can effectively ensure the structural strength.
  • the metal limit shaft 22 is embedded into the melted base 21 through the injection mold. In the material, after cooling down, the limit shaft 22 can be firmly fixed on the base 21.
  • the paddle clip 12 may have a paddle clip through hole 121 for sleeved outside the limiting shaft 22, and the paddle clip through hole 121 forms a limiting recess.
  • the axis of the paddle clamp through hole 121 coincides with the axis of the limiting shaft 22.
  • the cross section of the paddle clip through hole 121 and/or the cross section of the limiting shaft 22 is circular.
  • the cross section of the propeller clamp through hole 121 and/or the cross section of the limiting shaft 22 is circular, so that the limiting shaft 22 can be smoothly clamped through the propeller during the process of detaching the propeller clamp 12 from the mounting seat 20 Out of the hole 121.
  • the mounting seat is detachably connected to the motor by setting the mounting seat, a limit shaft is arranged on the mounting seat, and the propeller clamp has a limit recess, and the limit shaft cooperates with the limit recess to hinder the blade.
  • the component swings in the radial direction to prevent the yaw of the extended shaft of the ordinary motor, so that the propeller can also be installed on the motor without the extended shaft, and the installation adaptability of the propeller is improved.
  • Fig. 5 is a schematic structural diagram of a mounting seat provided by an embodiment of the present invention
  • Fig. 6 is a schematic structural diagram of a blade assembly and a propeller clip of a propeller provided by an embodiment of the present invention
  • Fig. 7 is a propeller clip provided by an embodiment of the present invention Schematic diagram of the structure. Please refer to Figure 1 and Figure 5 to Figure 7. This embodiment is based on the first embodiment.
  • the propeller 100 of this embodiment further includes a locking mechanism 40, which is used to lock the propeller clamp 12 Removably locked on the mounting seat 20, the locking mechanism 40 includes a clamping member 41 and a matching portion 42.
  • the paddle clamp 12 and the mounting base 20 are coaxially butted with each other via a limiting shaft 22.
  • the holding member 41 is provided on the paddle clamp 12.
  • the holding member 41 may be integrally formed with the paddle clip 12 or formed separately. Specifically, the holding member 41 may be formed by extending from the bottom surface of the lower paddle clip 122 in a direction away from the upper paddle clip 121.
  • the mating portion 42 may be provided on the base 21; after the paddle clip 12 is docked with the mounting base 20 to a preset position, the retaining member 41 can be rotated into the engaging portion 42 in the first direction to enter the locked state; the retaining member 41 It can be turned out from the mating portion 42 in the second direction to enter the unlocked state; wherein, the first direction is opposite to the second direction.
  • the central position of the base 21 can be recessed downward to form a concave surface 211, and edge protrusions 212 are provided at multiple positions on the edge of the base 21.
  • the edge protrusions 212 and the concave surface 211 form a receiving space, which forms a fit.
  • the portion 42 is used for the retaining member 41 to extend into the mating portion 42 and to prevent the retaining member 41 from disengaging from the mating portion 42 in the first direction, while only allowing the retaining member 41 to disengage from the mating portion 42 in the second direction.
  • the mating portion 42 may include an open end 421 and a blocking end 422.
  • the open end 421 is used for turning the holding member 41 into or out of the matching portion 42, and the blocking end 422 is used for preventing the holding member 41 from moving away.
  • the direction of the open end 421 comes out; during the process when the holding member 41 is turned into the mating part in the first direction, the holding part 41 gradually approaches the blocking end 422, and the holding part 41 is turned out of the mating part 42 in the second direction. In the middle, the holding member 41 gradually moves away from the blocking end 422.
  • the clockwise direction is the first direction
  • the counterclockwise direction is the second direction
  • the clockwise direction can be set as the first direction
  • the counterclockwise direction is the second direction.
  • the first direction can be selected according to the rotation direction of the motor 200, so that the first direction is consistent with the rotation direction of the motor 200, which can prevent the clamping member 41 from being thrown out of the matching portion 42 to a certain extent.
  • the mating portion 42 also includes a clamping wall 423 connected to the blocking end 422.
  • the clamping wall 423 is used to abut against the clamping member 41 to prevent the clamping member 41 from moving away from the mounting seat 20 in the axial direction. Prolapse.
  • the locking mechanism 40 also includes a docking portion 43, which can be formed on the mounting seat 20, and the docking portion 43 is in communication with the open end 421; the docking portion 43 is used to provide a clamping member during the docking process of the paddle clip 12 and the mounting seat 20 41 is accommodated.
  • the clamping member 41 is accommodated in the docking portion 43, the paddle clip 12 and the mounting seat 20 are docked to a preset position.
  • a middle protrusion 2111 may be formed protrudingly in the middle of the concave surface 211 of the base 21, and the middle protrusion 2111 may be provided with a connecting member 30 for setting the mounting seat 20.
  • the middle bump 2111 may be cross-shaped, and the end is connected to the edge of the base 21.
  • the docking portion 43 may include a groove formed on the mounting seat, and the groove may be formed by the middle bump.
  • the edge projection 212 are formed by the distance between the paddle clip 12 and the mounting seat 20, the holding member 41 of the paddle clip 12 first enters the docking portion 43, and then rotates along the first direction together with the blade assembly 10 In the mating portion 42, the setting of the butting portion 43 facilitates the rapid installation and positioning of the paddle clip 12.
  • the edge protrusions 212 provided at multiple positions on the edge of the base 21 may include a top protrusion 2121 and a side protrusion 2122, and the top protrusion 2121 and the side protrusion 2122 may be integrally formed.
  • the top bump 2121 has a distance from the concave surface 211
  • the bottom wall of the top bump 2121 can form a clamping wall 423
  • the side bumps 2122 can be connected to the concave surface 211, or have a small distance from the concave surface 211, which is not enough for
  • the clamping member 41 passes through, and the surface of the side protrusion 2122 forms a blocking end 422.
  • the number of the holding member 41 and the matching portion 42 in this embodiment may be at least two. In this way, the paddle clamp 12 and the mounting seat 20 can be more stably fixed.
  • the number of the holding member 41 and the matching portion 42 are the same, and they correspond to each other one to one.
  • the number of the holding members 41 is two, so that the paddle clip 12 forms a two-claw structure.
  • the two holding members 41 can be symmetrically arranged with the axis of the paddle clip 12 as the center.
  • the two matching portions 42 are mounted on the seat
  • the axis of 20 is centrally symmetrical. It should be noted that since the propeller clamp 12 and the mounting base 20 are relatively radially positioned by the limit shaft 22, the axis of the propeller clamp 12 and the axis of the mounting base 20 are coaxial. That is, the axis of the limit shaft 22.
  • the two retaining members 41 are symmetrically arranged with the axis of the limiting shaft 22 as the center, and the two matching portions 42 are symmetrically arranged with the axis of the limiting shaft 22 as the center, and are used to cooperate with the retaining member 41.
  • the clamping member 41 includes a plurality of, for example, three, or more than three
  • the plurality of clamping members 41 are evenly distributed around the axis of the paddle clamp 12, and correspondingly, the plurality of mating parts 42 are aligned with the axis of the mounting seat 20 For the center evenly distributed. That is, the plurality of clamping members 41 are uniformly distributed around the axis of the limiting shaft 22 as the center, and the plurality of matching portions 42 are evenly distributed around the axis of the limiting shaft 22 as the center, and are used to cooperate with the clamping member 41.
  • the clamping member 41 and the mating portion 42 are symmetrically or evenly distributed, which can make the connection force between the paddle clamp 12 and the mounting seat 20 as balanced as possible, can more reliably keep the paddle assembly 10 rotating, and more effectively reduce the possibility of propeller shooting Sex.
  • the paddle assembly 10 can realize the quick disassembly of the paddle clip 12 and the mounting base 20 through the cooperation of the clamping member 41 of the paddle clip 12 and the matching portion 42 of the mounting base 20, so that the paddle assembly 10 can be quickly removed from the mounting base 20 and the motor 200.
  • the upper detachment effectively improves the efficiency of installation and disassembly of the propeller.
  • the clamping member 41 may include a middle connecting portion 411 and a protruding portion 412. One end of the middle connecting portion 411 is connected to the paddle clip 12, and the other end of the middle connecting portion 411 is connected to the protruding portion 412. There is an included angle between the portion 412 and the intermediate connecting portion 411.
  • the middle connecting portion 411 may be fixedly connected to the lower paddle clip 122 of the paddle clip 12.
  • the middle connecting portion 411 is integrally formed with the lower paddle clip 122, and is formed from the bottom surface of the lower paddle clip 122 away from the upper paddle clip 121
  • the middle connecting portion 411 may be located at the edge position of the lower paddle clip 121 and extend downward from the edge position of the lower paddle clip 121 in a direction perpendicular to the bottom surface of the lower paddle clip 122.
  • the extending portion 412 may be disposed at the end of the intermediate connecting portion 411, and the extending portion 412 may form an included angle with the intermediate connecting portion 411, and the included angle may be 30° to 90°.
  • the extending portion 412 is connected to the middle connecting portion 411.
  • the angle between the connecting portions 411 is 90°, that is, the extending portion 412 and the intermediate connecting portion 411 are perpendicular to each other.
  • the extending portion 412 is used to extend into the matching portion 42, and the thickness of the extending portion 412 may be slightly smaller than the height of the matching portion 42, so that the extending portion 412 can be transferred into and out of the matching portion 42.
  • the extending portion 412 extends outward in a radial direction parallel to the limiting shaft 22.
  • the extending portion 412 needs to be perpendicular to the intermediate connecting portion 411.
  • the extending portion 412 may not be perpendicular to the middle connecting portion 411, as long as the angle between the extending portion 412 and the middle connecting portion 411, the middle connecting portion 411 and the lower paddle clip 122 The angle between the two should be equal.
  • the extending portion 412 extends into the matching portion 42, and the matching portion 42 is formed by the concave surface of the base 21 and the top protrusion 2121 and the side protrusion 2122, that is, the extending portion 412 extends into the base 21 In this way, the paddle assembly 10 and the mounting seat 20 are locked, and the height of the paddle assembly 10 is effectively reduced. Furthermore, the extending portion 412 extends outward in a radial direction parallel to the limiting shaft 22. Since the limiting shaft 22 is substantially perpendicular to the base 21, the extending portion 412 can be inserted in a direction substantially parallel to the base 21. In the mating part 42, the height of the mating part 42 may be substantially equal to or slightly larger than the thickness of the extending part 412.
  • the portion 42 is enlarged to allow the inclined extending portion 412 to extend, thereby effectively saving space and making the structure more compact.
  • the propeller of this embodiment further includes: an elastic member 50.
  • the elastic member 50 is disposed between the paddle clip 12 and the mounting seat 20, and the elastic member 50 is used to provide elastic force so that the clamping member 41 is clamped in the mating portion 42 to maintain the locked state.
  • the elastic member 50 in this embodiment may be an axially flexible spring, or an elastic member that can expand and contract in an axial direction. Through the arrangement of the elastic member 50, the locking stability of the holding member 41 and the mating portion 42 can be improved. Under the force of the elastic force, the holding member 41 is firmly fixed in the mating portion 42. If necessary, the holding member 41 can be removed from When the mating portion 42 escapes, the elastic force of the elastic member 50 must be overcome first, and the clamping member 41 must be rotated out in the second direction.
  • one end of the elastic member 50 may be connected to the mounting base 20, and the other end of the elastic member 50 abuts against the paddle clip 12.
  • the specific connection manner between the elastic member 50 and the mounting seat 20 includes at least one of the following: glue connection, snap connection, interference fit, and welding. Taking the way of gluing as an example, a melted plastic part and the elastic part 50 can be bonded together, so that the elastic part 50 is firmly fixed.
  • the elastic member 50 may be arranged in the middle of the mounting seat 20, and the elastic member 50 can expand and contract along the axis of the limiting shaft 22.
  • the axis of the elastic member 50 coincides with the axis of the mounting seat 20, the elastic member 50 can be coaxially sleeved on the outside of the limiting shaft 22, and the limiting shaft 22 can play a role in limiting the elastic member 50 in the radial direction. Preventing the elastic member 50 from deflecting in the radial direction enables the elastic member 50 to expand and contract only in the axial direction.
  • the elastic member 50 may also include a plurality of elastic members 50, and the plurality of elastic members 50 may be arranged around the limiting shaft 22 with the limiting shaft 22 as the center, and the above functions can also be achieved.
  • each elastic member 50 when the number of elastic members 50 is multiple, the stiffness of each elastic member 50 may be slightly lower, and when the number of elastic members 50 is only one, the stiffness of the elastic member 50 is greater than that of the plurality of elastic members 50.
  • the rigidity can provide sufficient elastic restoring force, so that the clamping member 41 is firmly clamped in the matching portion 42 to realize the locking of the blade assembly 10 and the mounting seat 20, so that the propeller is in a stable locked state.
  • the clamping member 41 can overcome the elastic force of the elastic member 50, and the clamping member 41 can be rotated out of the matching portion 42 in the second direction.
  • the elastic member 50 can be gradually compressed. In the process of installing the paddle clamp 12 and the mounting base 20, the paddle clamp 12 approaches the mounting base 20, the elastic member 50 is continuously compressed, and when the holding member 41 of the paddle clamp 12 reaches the preset position on the base 20 (at the docking portion 43 o'clock), the paddle assembly 10 rotates in the first direction to the mating portion 42.
  • the elastic member 40 After reaching the clamping position, the user releases the paddle assembly 10, the elastic member 40 loses the pressing force, and the elastic member 40 has a tendency to recover its deformation upward. Under the action of the elastic restoring force of the elastic member 40, the clamping member 41 is pressed tightly to the top of the mating portion 42, and is tightly restrained in the mating portion 42. It can be seen that the arrangement of the elastic member 40 can greatly The locking stability between the blade assembly 10 and the mounting seat 20 is improved, thereby greatly improving the safety of the propeller, and effectively preventing the occurrence of propeller shooting.
  • a limit shaft is provided on the mounting seat to cooperate with the limit recess of the propeller clamp to prevent radial deflection of the blade assembly, so that the propeller in this embodiment can be adapted to a motor without an extended shaft , Improve the installation adaptability of the propeller. Moreover, the quick disassembly of the propeller can be realized through the locking mechanism, which improves the disassembly and assembly efficiency of the propeller.
  • Fig. 8 is a schematic structural diagram of a first propeller provided by another embodiment of the present invention; it should be noted that the propeller shown in Fig. 1 is a second propeller. Please refer to Figs. 1 to 3 and Fig. 8 As shown, this embodiment provides a power system, including a motor 200, a first propeller 100a, and a second propeller 100; wherein the motor 200 includes a rotor 201, and the rotor 201 is provided with a mounting surface 2011 and a connecting portion located on the mounting surface 2011; The part is used to cooperate with the connecting member 30, so that the mounting surface 2011 can selectively mount the first propeller 100a or the second propeller 100.
  • a power system including a motor 200, a first propeller 100a, and a second propeller 100; wherein the motor 200 includes a rotor 201, and the rotor 201 is provided with a mounting surface 2011 and a connecting portion located on the mounting surface 2011; The part is used to cooperate with the connecting member 30, so that the mounting surface
  • the first propeller 100a includes at least two blades 11a.
  • the second propeller 100 includes a blade assembly 10 and a mounting seat 20.
  • the blade assembly 10 includes at least two blades 11 and a blade clamp 12 for connecting the at least two blades 11 together.
  • the mounting seat 20 and the propeller clamp 12 detachable connection; wherein, the mounting base 20 includes a base 21 and a limit shaft 22 arranged in the middle of the base 21, the limit shaft 22 is set basically perpendicular to the base 21, the paddle clamp 12 is provided with a limit recess, the limit shaft 22 and the limit shaft 22 The recesses are matched to prevent the blade assembly 10 from swinging in the radial direction.
  • At least two blades 11a can be detachably installed on the mounting surface 2011 through the connecting member 30 and the connecting portion, respectively, and rotate together with the rotor 201 of the motor.
  • the mounting base 20 is detachably mounted on the mounting surface 2011 through the connecting piece 30 and the connecting part, and rotates together with the rotor 201 of the motor 200.
  • the connecting portion on the motor 200 is a screw hole, which may be the first screw hole 200 a described in the first embodiment.
  • the corresponding connecting member 30 is a screw.
  • the connecting part and the connecting member 30 can also be other, for example, the connecting member 30 is a detachable buckle, the connecting part is a clamping hole, etc., as long as the motor 200 and the mounting base 20 and the blade 11a can be connected Removable connection is sufficient.
  • the motor 200 When the motor 200 is connected to the first propeller 100a, the motor 200 does not need to extend the shaft and can be applied to a shaftless motor.
  • This kind of power system can effectively reduce the weight of the power system and further reduce the unmanned aerial vehicle's weight because the propeller clip is omitted. Self-weight is conducive to the lightweight of unmanned aerial vehicles.
  • the mounting base 20 can be directly mounted on the mounting surface 2011 of the motor 200, and then the propeller with the propeller clamp (the second propeller 100) can be detachably mounted on the mounting base 20. It can be seen that the power system provided in this embodiment can be equipped with two different types of propellers, which expands the application range of the power system.
  • the propeller clamp 12 of the second propeller 100 has a propeller clamp through hole 121 for sleeved outside the limiting shaft 22, the propeller clamp through hole 121 forms a limiting recess; the cross section of the propeller clamp through hole 121 and/ Or the cross section of the limiting shaft 22 is circular.
  • the structure and function of the paddle clamp through hole 121 and the limiting shaft 22 are the same as the related description in the first embodiment. For details, please refer to the related description in the first embodiment, which is not repeated in this embodiment.
  • limiting shaft in this embodiment refers to a limiting member having a rotation axis. It may include at least one of the following: cylindrical shaft, truncated cone, and cone. As long as it can be partially inserted into the limiting recess, and under the limitation of the limiting recess, the blade assembly 10 cannot swing in the radial direction.
  • the limit shaft 22 is provided in the middle of the base 21, and it is not limited to that the bottom of the limit shaft 22 is directly connected to the middle of the base 21. It may also be that the limit shaft 22 is connected to the base 21 through an intermediate component. , But relative to the base 21, the limit shaft 22 is located in the middle of the base 21.
  • the limiting recess may be located in the middle of the paddle clamp 12, and the axis of the limiting shaft 22 may coincide with the rotation axis of the motor 200.
  • the rotation axis of the motor 200 and the rotation axis of the propeller can be coincident with the axis of the limit shaft 22, which can make the propeller more stable when rotating, and the rotor of the motor 200 can drive the blade assembly 10 to rotate stably.
  • the limiting recess may be located in the middle of the paddle clamp 12, and the axis of the limiting shaft 22 may coincide with the axis of the motor 200.
  • the rotation axis of the motor 200 and the rotation axis of the propeller can coincide with the axis of the limit shaft 22, which can make the propeller more stable when rotating, and the rotor of the motor 200 can drive the blade assembly 10 to rotate stably.
  • the limit shaft 22 may be directly connected to the base 21, and the connection relationship between the limit shaft 22 and the base 21 may include at least one of the following: integral injection molding, glue bonding, welding, clamping, etc., in order to prevent the limit shaft 22 from being There is looseness on the base 21, which results in the loss of the radial limiting function of the limiting shaft 22.
  • the limiting shaft 22 can be non-detachably connected to the base 21 in any of the above-mentioned ways.
  • the base 21 is a plastic part
  • the limit shaft 22 is a metal part
  • the limit shaft 22 and the plastic part are fixedly connected together by insert molding.
  • the limit shaft 22 can be a metal piece with high strength and rigidity, which has strong resistance to deformation and can effectively ensure the structural strength.
  • the metal limit shaft 22 is embedded into the melted base 21 through the injection mold. In the material, after cooling down, the limit shaft 22 can be firmly fixed on the base 21.
  • the second propeller when the motor is installed with the second propeller, the second propeller is detachably connected to the motor by setting the mounting seat, and the mounting seat is provided with a limit shaft, and the propeller clamp has a limit recess to limit the position.
  • the positioning shaft cooperates with the limiting recess to prevent the blade assembly from swinging in the radial direction, and play the anti-yaw effect of the extension shaft of the ordinary motor, so that the propeller can also be installed on the motor without the extension shaft, which improves the performance of the propeller. Installation adaptability.
  • the second propeller 100 of this embodiment further includes a locking mechanism 40, which is used to clamp the propeller. 12 is detachably locked on the mounting seat 20, and the locking mechanism 40 includes a clamping member 41 and a matching portion 42. Specifically, the paddle clamp 12 and the mounting base 20 are coaxially butted with each other via a limiting shaft 22.
  • the holding member 41 is provided on the paddle clamp 12.
  • the holding member 41 may be integrally formed with the paddle clip 12 or formed separately. Specifically, the holding member 41 may be formed by extending from the bottom surface of the lower paddle clip 122 in a direction away from the upper paddle clip 121.
  • the mating portion 42 may be provided on the base 21; after the paddle clip 12 is docked with the mounting base 20 to a preset position, the retaining member 41 can be rotated into the engaging portion 42 in the first direction to enter the locked state; the retaining member 41 It can be turned out from the mating portion 42 in the second direction to enter the unlocked state; wherein, the first direction is opposite to the second direction.
  • the mating portion 42 may include an open end 421 and a blocking end 422.
  • the open end 421 is used for turning the holding member 41 into or out of the matching portion 42, and the blocking end 422 is used for preventing the holding member 41 from moving away.
  • the direction of the open end 421 comes out; during the process when the holding member 41 is turned into the mating part in the first direction, the holding part 41 gradually approaches the blocking end 422, and the holding part 41 is turned out of the mating part 42 in the second direction. In the middle, the holding member 41 gradually moves away from the blocking end 422.
  • the clockwise direction is the first direction
  • the counterclockwise direction is the second direction
  • the clockwise direction can be set as the first direction
  • the counterclockwise direction is the second direction.
  • the first direction can be selected according to the rotation direction of the motor 200, so that the first direction is consistent with the rotation direction of the motor 200, which can prevent the clamping member 41 from being thrown out of the matching portion 42 to a certain extent.
  • the mating portion 42 also includes a clamping wall 423 connected to the blocking end 422.
  • the clamping wall 423 is used to abut against the clamping member 41 to prevent the clamping member 41 from moving away from the mounting seat 20 in the axial direction. Prolapse.
  • the locking mechanism 40 also includes a docking portion 43.
  • the docking portion 43 can be formed on the mounting seat 20, and the docking portion 43 is in communication with the open end 421; the docking portion 43 is used for the clamping member during the docking process of the paddle clip 12 and the mounting seat 20. 41 is accommodated. When the clamping member 41 is accommodated in the docking portion 43, the paddle clip 12 and the mounting seat 20 are docked to a preset position.
  • the number of the holding member 41 and the matching portion 42 in this embodiment may be at least two. In this way, the paddle clamp 12 and the mounting seat 20 can be more stably fixed.
  • the number of the holding member 41 and the matching portion 42 are the same, and they correspond to each other one to one.
  • the number of the holding members 41 is two, so that the paddle clip 12 forms a two-claw structure.
  • the two holding members 41 can be symmetrically arranged with the axis of the paddle clip 12 as the center.
  • the two matching portions 42 are mounted on the seat
  • the axis of 20 is centrally symmetrical. It should be noted that since the propeller clamp 12 and the mounting base 20 are relatively radially positioned by the limit shaft 22, the axis of the propeller clamp 12 and the axis of the mounting base 20 are coaxial. That is, the axis of the limit shaft 22.
  • the two retaining members 41 are symmetrically arranged with the axis of the limiting shaft 22 as the center, and the two matching portions 42 are symmetrically arranged with the axis of the limiting shaft 22 as the center, and are used to cooperate with the retaining member 41.
  • the clamping member 41 includes a plurality of, for example, three, or more than three
  • the plurality of clamping members 41 are evenly distributed around the axis of the paddle clamp 12, and correspondingly, the plurality of mating parts 42 are aligned with the axis of the mounting seat 20 For the center evenly distributed. That is, the plurality of clamping members 41 are evenly distributed around the axis of the limiting shaft 22, and the plurality of mating parts 42 are evenly distributed around the axis of the limiting shaft 22, and are used to cooperate with the clamping members 41. As shown in FIG.
  • the clamping member 41 may include a middle connecting portion 411 and a protruding portion 412. One end of the middle connecting portion 411 is connected to the paddle clip 12, and the other end of the middle connecting portion 411 is connected to the protruding portion 412. There is an included angle between the portion 412 and the intermediate connecting portion 411.
  • the extending portion 412 extends outward in a radial direction parallel to the limiting shaft 22.
  • the propeller of this embodiment further includes: an elastic member 50.
  • the elastic member 50 is disposed between the paddle clip 12 and the mounting seat 20, and the elastic member 50 is used to provide elastic force so that the clamping member 41 is clamped in the mating portion 42 to maintain the locked state.
  • one end of the elastic member 50 may be connected to the mounting base 20, and the other end of the elastic member 50 abuts against the paddle clip 12.
  • the specific connection manner between the elastic member 50 and the mounting seat 20 includes at least one of the following: glue connection, snap connection, interference fit, and welding.
  • the elastic member 50 may be arranged in the middle of the mounting seat 20, and the elastic member 50 can expand and contract along the axis of the limiting shaft 22.
  • the clamping member 41 can overcome the elastic force of the elastic member 50, and the clamping member 41 can be rotated out of the matching portion 42 in the second direction.
  • the elastic member 50 can be gradually compressed.
  • Fig. 9 is a schematic structural diagram of an unmanned aerial vehicle provided by another embodiment of the present invention.
  • this embodiment provides an unmanned aerial vehicle, including: a fuselage 300, a power system 400, and a controller 500.
  • the power system 400 is installed on the fuselage 300
  • the controller 500 is installed on the fuselage 300
  • the controller 500 is electrically connected to the motor 200.
  • the controller 500 controls the working state of the motor 200 to obtain corresponding flight power.
  • the power system in the unmanned aerial vehicle of this embodiment includes a motor 200, a first propeller 100a, and a second propeller 100; wherein, the motor 200 includes a rotor 201, The rotor 201 is provided with a mounting surface 2011 and a connecting portion located on the mounting surface 2011; the connecting portion is used to cooperate with the connecting member 30, so that the mounting surface 2011 can selectively mount the first propeller 100a or the second propeller 100.
  • the first propeller 100a includes at least two blades 11a.
  • the second propeller 100 includes a blade assembly 10 and a mounting seat 20.
  • the blade assembly 10 includes at least two blades 11 and a blade clamp 12 for connecting the at least two blades 11 together.
  • the mounting seat 20 and the propeller clamp 12 detachable connection; wherein, the mounting base 20 includes a base 21 and a limit shaft 22 arranged in the middle of the base 21, the limit shaft 22 is set basically perpendicular to the base 21, the paddle clamp 12 is provided with a limit recess, the limit shaft 22 and the limit shaft 22 The recesses are matched to prevent the blade assembly 10 from swinging in the radial direction.
  • At least two blades 11a can be detachably installed on the mounting surface 2011 through the connecting member 30 and the connecting portion, respectively, and rotate together with the rotor 201 of the motor.
  • the mounting base 20 is detachably mounted on the mounting surface 2011 through the connecting piece 30 and the connecting part, and rotates together with the rotor 201 of the motor 200.
  • the connecting portion on the motor 200 is a screw hole, and the corresponding connecting member 30 is a screw.
  • the connecting part and the connecting member 30 can also be other, for example, the connecting member 30 is a detachable buckle, the connecting part is a clamping hole, etc., as long as the motor 200 and the mounting base 20 and the blade 11a can be connected Removable connection is sufficient.
  • the motor 200 When the motor 200 is connected to the first propeller 100a, the motor 200 does not need to extend the shaft and can be applied to a shaftless motor.
  • This kind of power system can effectively reduce the weight of the power system and further reduce the unmanned aerial vehicle's weight because the propeller clip is omitted. Self-weight is conducive to the lightweight of unmanned aerial vehicles.
  • the mounting base 20 can be directly mounted on the mounting surface 2011 of the motor 200, and then the propeller with the propeller clamp (the second propeller 100) can be detachably mounted on the mounting base 20. It can be seen that the power system provided in this embodiment can be equipped with two different types of propellers, which expands the application range of the power system.
  • the propeller clamp 12 of the second propeller 100 has a propeller clamp through hole 121 for sleeved outside the limiting shaft 22, the propeller clamp through hole 121 forms a limiting recess; the cross section of the propeller clamp through hole 121 and/ Or the cross section of the limiting shaft 22 is circular.
  • the structure and function of the paddle clamp through hole 121 and the limiting shaft 22 are the same as the related description in the first embodiment. For details, please refer to the related description in the first embodiment, which is not repeated in this embodiment.
  • limiting shaft in this embodiment refers to a limiting member having a rotation axis. It may include at least one of the following: cylindrical shaft, truncated cone, and cone. As long as it can be partially inserted into the limiting recess, and under the limitation of the limiting recess, the blade assembly 10 cannot swing in the radial direction.
  • the limit shaft 22 is provided in the middle of the base 21, and it is not limited to that the bottom of the limit shaft 22 is directly connected to the middle of the base 21. It may also be that the limit shaft 22 is connected to the base 21 through an intermediate component. , But relative to the base 21, the limit shaft 22 is located in the middle of the base 21.
  • the limiting recess may be located in the middle of the paddle clamp 12, and the axis of the limiting shaft 22 may coincide with the rotation axis of the motor 200.
  • the rotation axis of the motor 200 and the rotation axis of the propeller can be coincident with the axis of the limit shaft 22, which can make the propeller more stable when rotating, and the rotor of the motor 200 can drive the blade assembly 10 to rotate stably.
  • the limiting recess may be located in the middle of the paddle clamp 12, and the axis of the limiting shaft 22 may coincide with the axis of the motor 200.
  • the rotation axis of the motor 200 and the rotation axis of the propeller can be coincident with the axis of the limit shaft 22, which can make the propeller more stable when rotating, and the rotor of the motor 200 can drive the blade assembly 10 to rotate stably.
  • the limit shaft 22 may be directly connected to the base 21, and the connection relationship between the limit shaft 22 and the base 21 may include at least one of the following: integral injection molding, glue bonding, welding, clamping, etc., in order to prevent the limit shaft 22 from being There is looseness on the base 21, which results in the loss of the radial limiting function of the limiting shaft 22.
  • the limiting shaft 22 can be non-detachably connected to the base 21 in any of the above-mentioned ways.
  • the base 21 is a plastic part
  • the limit shaft 22 is a metal part
  • the limit shaft 22 and the plastic part are fixedly connected together by insert molding.
  • the limit shaft 22 can be a metal piece with high strength and rigidity, which has strong resistance to deformation and can effectively ensure the structural strength.
  • the metal limit shaft 22 is embedded into the melted base 21 through the injection mold. In the material, after cooling down, the limit shaft 22 can be firmly fixed on the base 21.
  • the second propeller when the motor is installed with the second propeller, the second propeller is detachably connected to the motor by setting the mounting seat, the mounting seat is provided with a limiting shaft, and the propeller clamp has a limiting recess.
  • the limit shaft cooperates with the limit recess to prevent the blade assembly from swinging in the radial direction, and play the anti-yaw effect of the extension shaft of the ordinary motor, so that the propeller can also be installed on the motor without an extension shaft, which improves the propeller.
  • the second propeller 100 of this embodiment further includes a locking mechanism 40, which is used to clamp the propeller. 12 is detachably locked on the mounting seat 20, and the locking mechanism 40 includes a clamping member 41 and a matching portion 42. Specifically, the paddle clamp 12 and the mounting base 20 are coaxially butted with each other via a limiting shaft 22.
  • the holding member 41 is provided on the paddle clamp 12.
  • the holding member 41 may be integrally formed with the paddle clip 12 or formed separately. Specifically, the holding member 41 may be formed by extending from the bottom surface of the lower paddle clip 122 in a direction away from the upper paddle clip 121.
  • the mating portion 42 may be provided on the base 21; after the paddle clip 12 is docked with the mounting base 20 to a preset position, the retaining member 41 can be rotated into the engaging portion 42 in the first direction to enter the locked state; the retaining member 41 It can be turned out from the mating portion 42 in the second direction to enter the unlocked state; wherein, the first direction is opposite to the second direction.
  • the mating portion 42 may include an open end 421 and a blocking end 422.
  • the open end 421 is used for turning the holder 41 into or out of the fitting portion 42, and the blocking end 422 is used for preventing the holder 41 from moving away
  • the direction of the open end 421 comes out; during the process when the holding member 41 is turned into the mating part in the first direction, the holding part 41 gradually approaches the blocking end 422, and the holding part 41 is turned out of the mating part 42 in the second direction. In the middle, the holding member 41 gradually moves away from the blocking end 422.
  • the clockwise direction is the first direction
  • the counterclockwise direction is the second direction
  • the clockwise direction can be set as the first direction
  • the counterclockwise direction is the second direction.
  • the first direction can be selected according to the rotation direction of the motor 200, so that the first direction is consistent with the rotation direction of the motor 200, which can prevent the clamping member 41 from being thrown out of the matching portion 42 to a certain extent.
  • the mating portion 42 also includes a clamping wall 423 connected to the blocking end 422.
  • the clamping wall 423 is used to abut against the clamping member 41 to prevent the clamping member 41 from moving away from the mounting seat 20 in the axial direction. Prolapse.
  • the locking mechanism 40 also includes a docking portion 43, which can be formed on the mounting seat 20, and the docking portion 43 is in communication with the open end 421; the docking portion 43 is used to provide a clamping member during the docking process of the paddle clip 12 and the mounting seat 20 41 is accommodated.
  • the clamping member 41 is accommodated in the docking portion 43, the paddle clip 12 and the mounting seat 20 are docked to a preset position.
  • the number of the holding member 41 and the matching portion 42 in this embodiment may be at least two. In this way, the paddle clamp 12 and the mounting seat 20 can be more stably fixed.
  • the number of the holding member 41 and the matching portion 42 are the same, and they correspond to each other one to one.
  • the number of the holding members 41 is two, so that the paddle clip 12 forms a two-claw structure.
  • the two holding members 41 can be symmetrically arranged with the axis of the paddle clip 12 as the center.
  • the two matching portions 42 are mounted on the seat
  • the axis of 20 is centrally symmetrical. It should be noted that since the propeller clamp 12 and the mounting base 20 are relatively radially positioned by the limit shaft 22, the axis of the propeller clamp 12 and the axis of the mounting base 20 are coaxial. That is, the axis of the limit shaft 22.
  • the two retaining members 41 are symmetrically arranged with the axis of the limiting shaft 22 as the center, and the two matching portions 42 are symmetrically arranged with the axis of the limiting shaft 22 as the center, and are used to cooperate with the retaining member 41.
  • the retaining member 41 includes a plurality of, for example, three, or more than three
  • the plurality of retaining members 41 are evenly distributed around the axis of the paddle clamp 12, and correspondingly, the plurality of mating parts 42 are aligned with the axis of the mounting seat 20 For the center evenly distributed. That is, the plurality of clamping members 41 are uniformly distributed around the axis of the limiting shaft 22 as the center, and the plurality of matching portions 42 are evenly distributed around the axis of the limiting shaft 22 as the center, and are used to cooperate with the clamping member 41.
  • the clamping member 41 may include a middle connecting portion 411 and a protruding portion 412. One end of the middle connecting portion 411 is connected to the paddle clip 12, and the other end of the middle connecting portion 411 is connected to the protruding portion 412. There is an included angle between the portion 412 and the intermediate connecting portion 411.
  • the extending portion 412 extends outward in a radial direction parallel to the limiting shaft 22.
  • the propeller of this embodiment further includes: an elastic member 50.
  • the elastic member 50 is disposed between the paddle clip 12 and the mounting seat 20, and the elastic member 50 is used to provide elastic force so that the clamping member 41 is clamped in the mating portion 42 to maintain the locked state.
  • one end of the elastic member 50 may be connected to the mounting base 20, and the other end of the elastic member 50 abuts against the paddle clip 12.
  • the specific connection manner between the elastic member 50 and the mounting seat 20 includes at least one of the following: glue connection, snap connection, interference fit, and welding.
  • the elastic member 50 may be arranged in the middle of the mounting seat 20, and the elastic member 50 can expand and contract along the axis of the limiting shaft 22.
  • the clamping member 41 can overcome the elastic force of the elastic member 50, and the clamping member 41 can be rotated out of the matching portion 42 in the second direction.
  • the elastic member 50 can be gradually compressed.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical or mechanical. Or other forms.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
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Abstract

L'invention concerne une hélice (100), un système de propulsion et un aéronef sans pilote. L'hélice (100) est conçue pour être reliée de manière amovible à un moteur (200) et comprend : un ensemble lame (10), comprenant au moins deux lames (11) et un porte-lame (12) utilisé pour relier les au moins deux lames (11) ensemble ; et une base de montage (20), la base de montage (20) étant reliée de manière amovible au porte-lame (12) et conçue pour être reliée de manière amovible au moteur (200) au moyen de pièces de liaison (30) et tournant conjointement avec un rotor (201) du moteur (200), la base de montage (20) comprenant une base (21) et un arbre de limitation (22) disposé au milieu de la base (21), l'arbre de limitation (22) est disposé de manière essentiellement perpendiculaire à la base (21), le porte- lame (12) est pourvu d'une partie évidée de limitation et l'arbre de limitation (22) correspond à la partie évidée de limitation pour empêcher l'ensemble lame (10) d'osciller radialement. Par conséquent, l'hélice (100) peut être montée sur le moteur (200) sans arbre allongé, de telle sorte que l'adaptabilité de montage de l'hélice (100) est améliorée.
PCT/CN2019/130761 2019-12-31 2019-12-31 Hélice, système de propulsion et aéronef sans pilote WO2021134590A1 (fr)

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PCT/CN2019/130761 WO2021134590A1 (fr) 2019-12-31 2019-12-31 Hélice, système de propulsion et aéronef sans pilote
CN201980052882.7A CN112996721A (zh) 2019-12-31 2019-12-31 螺旋桨、动力系统及无人飞行器

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PCT/CN2019/130761 WO2021134590A1 (fr) 2019-12-31 2019-12-31 Hélice, système de propulsion et aéronef sans pilote

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