WO2019062389A1 - 一种螺旋桨、动力组件及无人机 - Google Patents

一种螺旋桨、动力组件及无人机 Download PDF

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Publication number
WO2019062389A1
WO2019062389A1 PCT/CN2018/101668 CN2018101668W WO2019062389A1 WO 2019062389 A1 WO2019062389 A1 WO 2019062389A1 CN 2018101668 W CN2018101668 W CN 2018101668W WO 2019062389 A1 WO2019062389 A1 WO 2019062389A1
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WO
WIPO (PCT)
Prior art keywords
housing
hole
gear
propeller
blade
Prior art date
Application number
PCT/CN2018/101668
Other languages
English (en)
French (fr)
Inventor
孙维
张海浪
罗东东
苏文兵
Original Assignee
深圳市道通智能航空技术有限公司
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Filing date
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Application filed by 深圳市道通智能航空技术有限公司 filed Critical 深圳市道通智能航空技术有限公司
Publication of WO2019062389A1 publication Critical patent/WO2019062389A1/zh

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    • 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
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/32—Blade pitch-changing mechanisms mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives
    • 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
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features

Definitions

  • Embodiments of the present application relate to the field of propeller technology, and in particular, to a propeller, a power component to which the propeller is applied, and a drone to which the power component is applied.
  • the unmanned aerial vehicle is a non-manned aerial vehicle that controls the flight attitude through radio remote control equipment and built-in programs. It is widely used in aerial photography because of its flexibility, quick response, driverless operation and low operational requirements. Plant protection, power inspection, disaster relief and many other fields. With the development of wireless Internet, wireless LAN and image processing technology, drones have been favored by more and more users.
  • the propeller is an important part of the power components of the drone. It is usually composed of two or more blades and paddles distributed in an axisymmetric form. The blades are mounted on the paddles, and the paddles are fixedly mounted on the drive unit. on. When the drive rotates, the blades are rotated together by the paddles to provide lift to the drone.
  • the prior art has at least the following problems: when the drone needs to perform high-speed flight, it is necessary to increase the pitch of the propeller, and when the drone needs to hover, it needs to be reduced.
  • the pitch of the small propellers because the pitch of the propellers on the market is fixed, it is often difficult to adapt to a variety of different drone flight requirements.
  • the embodiment of the present application provides a propeller, a power component, and a drone, which can solve the problem that the existing propeller is difficult to adapt to the flight requirements of a plurality of different drones.
  • the propeller includes: a paddle and at least two blades; the paddle includes a housing, an upper cover and at least two gears, the upper cover being mounted at one end of the housing and rotatable relative to the housing
  • the upper cover is provided with a tooth portion; the at least two gears are received in the housing and mesh with the tooth portion; the at least two blades are in one-to-one correspondence with the at least two gears, each One end of the blade is mounted in the housing and is fixedly coupled to a corresponding one of the gears, and the at least two blades are rotatable relative to the housing; when the upper cover is rotated, the driving device is driven
  • the at least two gears are rotated such that the at least two blades rotate relative to the one to change the pitch of the blades.
  • the paddle includes a rotating shaft, the rotating shaft being located at one end of the blade mounted in the housing of the paddle; the sidewall of the housing includes a corresponding axis of rotation a first through hole provided; the gear includes a second through hole corresponding to the rotating shaft, the second through hole includes a circular through hole, and along a central axis direction of the circular through hole, a groove formed in a sidewall of the circular through hole; the rotating shaft is inserted into the second through hole through the first through hole, and the rotating shaft is at a connection with the second through hole
  • the shape is adapted to the second through hole, so that when each of the gears rotates, the rotating shaft can be rotated to drive the blade to rotate relative to the housing.
  • the blade further includes a limit shaft located at one end of the blade mounted in the housing of the paddle; the side wall of the housing further includes a wraparound a circular arc groove of the first through hole; the gear is further provided with a side hole; the limiting shaft is inserted into the side hole through the circular arc groove, and the limiting shaft is at the circular arc groove Sliding inside.
  • a plurality of limiting recesses for defining the position of the limiting shaft are disposed in the circular arc groove, and the plurality of limiting recesses are arranged along a sliding track of the limiting axis.
  • the housing is provided with a first circular boss toward an inner surface of the gear, the first through hole penetrating the first circular boss, the first circular convex a central axis of the table coincides with a center line of the first through hole;
  • the gear is disposed with a first arc-shaped first slider toward a surface of the first circular boss, and an inner diameter of the first slider The outer diameter of the first circular boss is the same, and the first slider contacts the outer circumference of the first circular boss.
  • a central portion of the upper cover is provided with a through hole for receiving a rotating shaft of the driving device, and the propeller further includes an elastic fixing member for being sleeved on the rotating shaft.
  • the upper cover is mounted to one end of the housing.
  • the tooth portion includes a plurality of teeth that are annularly distributed.
  • the plane of the tooth portion of the upper cover is perpendicular to the plane in which the two gears are respectively located.
  • the paddle further includes a bottom cover fixedly coupled to the other end of the housing, the bottom cover being provided with at least two positioning plates toward a surface of the housing, each of the The gear is disposed between a corresponding one of the positioning plate and a sidewall of the housing.
  • the positioning plate is provided with a support hole corresponding to the blade, and the rotating shaft passes through the first through hole, the second through hole, and the support hole, The blade is rotatable relative to the positioning plate.
  • the positioning plate is provided with a second circular boss facing the surface of the gear, the support hole penetrating the second circular boss, the center of the second circular boss An axis coincides with a center line of the support hole; a surface of the gear facing the second circular boss is provided with a second arc-shaped slider, and an inner diameter of the second block and the second circle The outer diameter of the shaped boss is the same, and the second slider contacts the outer circumference of the second circular boss.
  • an inner threaded bore for mounting the paddle to the drive is provided at a central location of the bottom cover.
  • the power assembly includes a drive and a propeller as described above.
  • the drone includes a fuselage, an arm, and a power assembly as described above, the power assembly being coupled to the arm.
  • the utility model has the beneficial effects that the propeller provided by the embodiment of the present application includes a paddle and at least two blades, and the paddle includes a casing, an upper cover and at least two gears, which are different from the prior art.
  • the upper cover is mounted on one end of the housing and rotatable relative to the housing, the upper cover is provided with a tooth portion; the at least two gears are received in the housing, and the tooth portion Engaging; the at least two blades are in one-to-one correspondence with the at least two gears, one end of the blade is mounted in the housing and fixedly coupled to the gear, the blade being opposite to the shell
  • Rotating the body when the upper cover is rotated, driving the at least two gears to rotate, so that the blade is tilted relative to the housing by a corresponding angle, that is, changing the pitch of the blade, can be simple
  • the structure adjusts the pitch of the blades of the propeller to achieve adjustment of the pitch of the propeller.
  • the drone can be adapted to different flight
  • FIG. 1 is a schematic perspective view of a propeller according to an embodiment of the present application.
  • Figure 2 is an exploded view of the propeller shown in Figure 1;
  • Figure 3 is a perspective view showing the housing of Figure 2;
  • Figure 4 is a perspective view showing the upper cover of Figure 2;
  • Figure 5 is a perspective view showing the structure of the bottom cover shown in Figure 2;
  • Figure 6 is a perspective view showing the structure of the gear shown in Figure 2;
  • Figure 7 is a cross-sectional view of the propeller shown in Figure 1 taken along the line A-A';
  • Figure 8 is a cross-sectional view of the propeller shown in Figure 1 taken along the line B-B';
  • FIG. 9 is a schematic perspective structural view of a power assembly according to another embodiment of the present application.
  • the propeller provided by the embodiment of the present application is a pitch adjustable propeller, and specifically includes a paddle and at least two blades.
  • the paddle includes a housing, and one end of the housing is mounted to be rotatable relative to the housing and includes a tooth portion.
  • the upper cover is provided with at least two gears meshing with the teeth of the upper cover, one end of each blade is mounted in the housing and fixedly connected with a corresponding gear, and each blade is rotatable relative to the housing.
  • the upper cover When the pitch adjustment is performed, the upper cover can be rotated relative to the housing in a specific direction (clockwise or counterclockwise), and when the upper cover is rotated, the teeth of the upper cover drive the gear to rotate, thereby making the blade As the gear rotates, the angle is tilted relative to the housing, that is, the pitch of the blade is changed, thereby adjusting the pitch of the propeller.
  • the larger the pitch of the blade the larger the pitch of the propeller.
  • the propeller provided by the embodiment of the present application can be applied to any technical field involving a propeller, and is particularly suitable for the field of drone technology.
  • the propeller 10 includes a paddle 11 and two blades 12 for fixedly mounting a driving device for powering the propeller 10. 20 (see Fig. 9), the two blades 12 are fixedly mounted on the paddle 11.
  • blades 12 are taken as an example, but it is not used to limit the present application. In other embodiments, the number of blades 12 may also be three. , 4, 6, etc.
  • the paddle 11 includes a housing 111, an upper cover 112, two gears 113, and a bottom cover 114.
  • the upper cover 112 is mounted on one end of the housing 111 and is rotatable relative to the housing 111; the bottom cover 114 is fixedly mounted on the other end of the housing 111 (ie, one end of the housing 111 away from the upper cover 112); two gears 113 It is housed in the casing 111 between the upper cover 112 and the bottom cover 114 and is in one-to-one correspondence with the two blades 12 respectively.
  • One end of the blade 12 is mounted in the housing 111 and is fixedly coupled to its corresponding gear 113, and the blade 12 is rotatable relative to the housing 111.
  • the blade 12 is further provided with a rotating shaft 121 and a limiting shaft 122 for mounting the blade 12 to the paddle 11 . Both the rotating shaft 121 and the limiting shaft 122 are disposed at one end of the blade 12 that is mounted in the housing 111 of the paddle 11.
  • the gear 113 has a one-to-one correspondence with the blade 12. Therefore, in other embodiments, if the number of the blades 12 includes n, the number of the gears 113 also includes n. n can be a positive integer greater than or equal to two.
  • the housing 111 has a substantially hollow cylindrical structure with a cavity therein for receiving the gear 113.
  • the side wall of the housing 111 corresponding to the gear 113 is a plane, and the side wall includes a first portion corresponding to the rotating shaft 121 of the blade 12.
  • the through hole 1111 and the circular arc groove 1112 opened around the first through hole 1111.
  • the circular arc groove 1112 is an arcuate sliding groove concentric with the first through hole 1111, and the circular arc groove 1112 is provided corresponding to the limiting shaft 122 of the blade 12.
  • the rotating shaft 121 of the paddle 12 is fixedly coupled to the gear 113 through the first through hole 1111, and the limiting shaft 122 is fixedly coupled to the gear 113 through the circular arc groove 1112.
  • the gear 113 drives the blade 12 to rotate relative to the housing 111
  • the limiting shaft 122 can slide within the circular arc groove 1112.
  • the circular arc groove 1112 is provided with a plurality of limiting recesses 1112a, and the sliding trajectories formed by the limiting recesses 1112a along the circular arc grooves 1112 (ie, the sliding track of the limiting shaft 122)
  • the arrangement is used to define the position of the limiter shaft 112 to limit the tilt angle of the blade 12 and the housing 111 to a certain angle, ensuring that the blade 12 does not sway during high speed rotation.
  • the housing 111 in order to facilitate positioning of the gear 113 during assembly and to reduce the sway of the gear 113 when the propeller 10 is in operation, the housing 111 is disposed first toward the inner surface of the gear 113.
  • the circular boss 1113 has a first through hole 1111 penetrating the first circular boss 1113, and a center line of the first through hole 1111 coincides with a central axis of the first circular boss 1113.
  • the upper cover 112 is also substantially circular in shape.
  • the upper cover 112 is disposed with a tooth portion 1121 facing the surface of the housing 111.
  • the tooth portion 1121 includes a plurality of teeth distributed in an annular shape, wherein the annular distribution may be an annular distribution or an elliptical annular distribution.
  • a through hole 1122 for accommodating a rotating shaft of the driving device is further disposed at a center position of the upper cover 112, and a center line of the tooth portion 1121 is coaxial with a center line of the through hole 1122.
  • the propeller 10 further includes an elastic fixing member 13 (which may be a circlip as shown in FIG. 1 or 2).
  • the elastic fixing member 13 When the rotating shaft of the driving device passes through the through hole 1122, the elastic fixing member 13 is sleeved on the rotating shaft. Thereby, the upper cover 112 is attached to one end of the housing 111.
  • the upper cover 112 is mounted on the housing 111 by the elastic fixing member 13, on the one hand, the stability of the connection of the upper cover 112 and the housing 111 can be enhanced when the pitch is not required to be adjusted, and the second
  • the aspect is that the upper cover 112 can be conveniently rotated when the pitch needs to be adjusted.
  • the third aspect is that the structure is simple and the operation is convenient.
  • the upper cover 112 may be mounted on the housing 111 in other manners, which is not specifically limited in the embodiment of the present application.
  • the bottom cover 114 can be fixedly coupled to the housing 111 by any suitable means, such as integral, screwed, snap-fit, and the like.
  • the bottom cover 114 is disposed with two positioning plates 1141 facing the surface of the housing 111.
  • the two positioning plates 1141 are in one-to-one correspondence with the two gears 113.
  • Each of the gears 113 is disposed on a side of the corresponding positioning plate 1141 and the housing 111. Between the walls, the gear 113 is further accurately positioned and the sway of the gear 113 is further reduced.
  • the positioning plate 1141 is provided with a support hole 1141a corresponding to the rotation shaft 131 of the blade 12, paddle
  • the rotating shaft 121 of the blade 12 passes through the first through hole 1111 of the housing 111, the gear 113, and the supporting hole 1141a, and the rotating shaft 121 is rotatable relative to the positioning plate 1141.
  • the rotating shaft 121 is slightly longer than the limiting shaft 122.
  • the positioning plate 1141 is provided with a second circular boss 1142 toward the surface of the gear 113, the support hole 1141a penetrates the second circular boss 1142, and the central axis of the second circular boss 1142 It coincides with the center line of the support hole 1141a.
  • the central position of the bottom cover 114 is further provided with an internally threaded hole 1143 which cooperates with the thread on the rotating shaft of the driving device to fix the paddle 11 to the driving device. .
  • the gear 113 includes a second through hole 1131 disposed corresponding to the rotating shaft 121 of the blade 12.
  • the second through hole 1131 includes a circular through hole 1131a, and a central axis along the circular through hole 1131a.
  • the direction is a groove 1131b opened in the side wall of the circular through hole 1131a.
  • the second through hole 1131 is adapted to the rotating shaft 121.
  • the rotating shaft 121 passes through the first through hole 1111 of the housing 111 and is inserted into the second through hole 1131, thereby fixedly connecting the blade 12 and the gear 113.
  • the rotating shaft 121 of the blade 12 When the gear 113 rotates, the rotating shaft 121 of the blade 12 is subjected to a force at the groove 1131b and is driven by the gear 113 to rotate with the gear 113, so that the gear 113 drives the blade 12 to rotate relative to the housing 111.
  • the “the second through hole 1131 is adapted to the rotating shaft 121” means that the shape of the rotating shaft 121 at the connection with the second through hole 1131 is adapted to the second through hole 1131 (as shown in the figure). 8)).
  • the gear 113 further includes a side hole 1132 corresponding to the limiting shaft 122 of the blade 12, and the limiting shaft 122 is inserted into the side hole 1132 through the circular arc groove 1112 of the housing, thereby enhancing the connection between the blade 12 and the gear 113.
  • the stability is as well as that the gear 113 drives the blade 12 to rotate.
  • the gear 113 faces the surface of the first circular boss 1113 with a first slider 1133 having an arc shape with an inner diameter and an outer diameter of the first circular boss 1113 .
  • the first slider 1133 contacts the outer circumference of the first circular boss 1113, so that when the gear 113 rotates, the first slider 1133 can slide along the outer surface of the first circular boss 1113.
  • a second slider 1134 is disposed on the surface of the gear 113 toward the second circular boss 1142.
  • the second slider 1134 is also arcuate, and has an inner diameter equal to the outer diameter of the second circular boss 1142.
  • the block 1134 contacts the outer circumference of the second circular boss 1142 such that when the gear 113 rotates, the second slider 1134 can slide along the outer surface of the second circular boss 1142.
  • the gear 113 can be engaged by the cooperation between the first circular boss 1113 and the first slider 1133, and the cooperation between the second circular boss 1142 and the second slider 1134. Accurate positioning and prevention of the gear 113 from swaying when the propeller 10 is rotated at a high speed, thereby affecting the normal operation of the blade 12.
  • the first circular boss 1113 and the first slider 1133, and/or the second circular boss 1142 and the second slider 1134 may be omitted; or, Other structures position the gear 113.
  • the gear 113 may be first determined in the housing 111 according to the first circular boss 1113 in the housing 111 and the first slider 1133 of the gear 113. a mounting position, and mounting the gear 113 in the housing 111; then mounting the bottom cover 114 according to the second circular boss 1142 and the second slider 1134, and fixing the bottom cover 114 to the housing 111; then, rotating the gear 113, so that the side hole 1132 corresponds to the sliding track formed by the circular arc groove 1112, and the rotating shaft 121 of the blade 12 passes through the first through hole 1111, the second through hole 1131, and the support hole 1141a, and at the same time, the blade The limiting shaft 122 of the 12 is inserted into the side hole 1132 through the circular arc groove 1112; finally, the upper cover 112 is attached to engage the tooth portion 1121 of the upper cover 112 with the gear 113.
  • the plane in which the tooth portion 1121 of the upper cover 112 is located (in the present embodiment, the plane in which the upper cover 112 is located) is perpendicular to the plane in which the two gears 113 are respectively located.
  • the shape of the rotating shaft 121 at the junction with the gear 113 is adapted to the second through hole 1131. When the rotating shaft 121 passes through the second through hole 1131, the blade 12 is fixedly coupled to the gear 113.
  • the tooth portion 1121 of the upper cover 112 protrudes into the inner cavity of the housing 111 and meshes with the gear 113; the gear 113 is sandwiched at the bottom.
  • the first circular boss 1113 is engaged with the first slider 1133
  • the second circular boss 1142 is engaged with the second slider 1134;
  • the rotating shaft 121 of the blade 12 passes through the first through hole 1111, the second through hole 1131, and the supporting hole 1141a, and the limiting shaft 122 is inserted into the side hole 1132 through the circular arc groove 1112.
  • the tooth portion 1121 of the upper cover 112 can drive the gear 113 to rotate, and the gear 113 is fixedly connected to the corresponding blade 12 thereof.
  • the blade 12 can be rotated relative to the housing 111 and the positioning plate 1141. Therefore, when the gear 113 rotates, the corresponding blade 12 can be rotated relative to the housing 111 to change the pitch of the blade 12.
  • the bottom cover 114 including the positioning plate 1141 is provided for positioning the gear 113, facilitating assembly and reducing the sway of the gear 113.
  • the gear 113 can also be positioned in other configurations.
  • the support hole 1141a is provided in the positioning plate 1141 in order to ensure the coaxiality of the gear 113. In other embodiments, the support hole 1141a may be omitted.
  • the circular arc groove 1112 and the side hole 1132 disposed corresponding to the limiting shaft 122 of the blade 12 include two, and the two circular arc grooves 1112 and the side holes 1132 are respectively disposed in the first pass.
  • the opposite sides of the hole 1111 and the second through hole 1131 are mainly for the purpose of facilitating mold opening, so that the housing 111 can simultaneously accommodate the front and back paddles, which is advantageous for mass production of the housing 111. Therefore, it can be understood that, in other embodiments, a circular arc groove 1112 and an edge hole 1132 may be respectively disposed corresponding to the mounting positions of the front blade and the reverse blade.
  • a plurality of limiting recesses 1112a are provided in the circular arc groove 1112, mainly for limiting the tilt angle of the blade 12 with respect to the housing 111 to a certain angle, thereby ensuring that the blade 12 rotates at a high speed. The process will not shake. Therefore, it can be understood that, in other embodiments, the limiting recess 1112a may be omitted, or other limiting friction recesses 1112a may be replaced by other structures having an enhanced friction effect.
  • the blade 12 can be rotated relative to the housing 111 as the gear 113 rotates by providing a suitable shape of the second through hole 1131 and the rotating shaft 121.
  • the limiting shaft 121, the circular arc groove 1112, and the side hole 1132 are mainly used to assist the adjustment of the tilting angle of the blade 12 with respect to the housing 111. Therefore, in other embodiments, the limiting shaft 121, the circular arc groove 1112, and the side hole 1132 may also be omitted.
  • FIG. 9 is a power assembly 100 according to another embodiment of the present application.
  • the power assembly 100 includes a driving device 20 and a propeller 10 as described in the above embodiments.
  • the propeller 10 is fixedly mounted on the driving device 20, and the driving device 20 drives the propeller 10 to rotate by the rotation of the rotating shaft 21, thereby powering the propeller 10.
  • the driving device 20 includes a rotating shaft 21 that passes through an internally threaded hole 1143 provided at a center position of the bottom cover 114 and a through hole 1122 provided at a center position of the upper cover 112. Further, the shaft 21 is provided with a section of a thread 211 at a joint with the internally threaded hole 1143, and the threaded rod 211 is screwed and fixed to the internally threaded hole 1143 to fix the paddle 11 to the driving device 20. Further, in order to enhance the stability of the connection between the paddle 11 and the driving device 20, a bolt may be placed over the bottom cover 114 for reinforcement.
  • the rotating shaft 21 may also be provided with an annular card slot 212 at a position where the elastic fixing member 13 is sleeved, and the elastic fixing member 13 may be sleeved in the annular card slot. 212 on.
  • another embodiment of the present application further provides a drone that includes a body (not shown), a robot arm (not shown), and a power assembly 100 as described in the above embodiments.
  • the fuselage is coupled to one end of the arm, and the power assembly 100 is coupled to the other end of the arm.
  • the drone can be any type of unmanned aerial vehicle, such as: a rotary wing drone, a tilting rotor drone, and the like.
  • the rotor drone may include, but is not limited to, a single rotor, a double rotor, a quadrotor, or a six-rotor.
  • the propeller provided by the embodiment of the present application includes a paddle and at least two blades, and the paddle includes a casing, an upper cover and at least two gears, and the upper cover is different from the prior art.
  • the upper cover mounted at one end of the housing and rotatable relative to the housing, the upper cover is provided with a tooth portion; the at least two gears are received in the housing and engaged with the tooth portion; At least two blades are in one-to-one correspondence with the at least two gears, one end of the blade is mounted in the housing and is fixedly coupled to the gear, and the blade is rotatable relative to the housing,
  • the upper cover rotates, the at least two gears are rotated, so that the blades are tilted relative to the casing by a corresponding angle, that is, the pitch of the blades is changed, and the propeller can be driven by a simple structure.
  • the pitch of the blades is adjusted to achieve adjustment of the pitch of the propeller.
  • the drone can be adapted

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Abstract

一种螺旋桨（10）、动力组件（100）及无人机，属于螺旋桨技术领域。该螺旋桨（10）包括：桨毂（11）和至少两个桨叶（12），桨毂（11）包括壳体（111）、上盖（112）和至少两个齿轮（113），上盖（112）安装于壳体（111）的一端，并可相对壳体（111）转动，上盖（112）设置有齿部（1121）；至少两个齿轮（113）收容于壳体内，并与齿部（1121）啮合；至少两个桨叶（12）与至少两个齿轮（113）一一对应，每个桨叶（12）的一端安装于壳体（111）内，并与相应的一个齿轮（113）固定连接，每个桨叶（12）可相对壳体（111）转动；当上盖（112）转动时，带动至少两个齿轮（113）转动，使得至少两个桨叶（12）相对壳体（111）转动，从而改变桨叶（12）的螺距。通过上述方式，能够对螺旋桨（10）的桨距进行调节，进而使应用该螺旋桨（10）的无人机能够适应多种飞行要求。

Description

一种螺旋桨、动力组件及无人机
本申请要求于2017年09月28日提交中国专利局、申请号为2017212735347、申请名称为“一种螺旋桨、动力组件及无人机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及螺旋桨技术领域，特别是涉及一种螺旋桨、应用该螺旋桨的动力组件以及应用该动力组件的无人机。
背景技术
无人机是一种通过无线电遥控设备和内置的程序来控制飞行姿态的不载人飞行器，由于其具有机动灵活、反应快速、无人驾驶、操作要求低等优点，现已广泛应用于航拍、植保、电力巡检、救灾等众多领域。随着无线互联网、无线局域网和图像处理技术的发展，无人机更是得到了越来越多用户的青睐。
螺旋桨是无人机的动力组件中的重要组成部分，其通常由两个或者多个呈轴对称形式分布的桨叶和桨榖组成，桨叶安装在桨榖上，桨榖固定安装在驱动装置上。当驱动装置转动时，通过桨榖带动桨叶一起旋转，从而为无人机提供升力。
在实现本申请的过程中，发明人发现现有技术至少存在如下问题：当无人机需要进行高速飞行时，需要增大螺旋桨的桨距，而当无人机需要悬停作业时，需要减小螺旋桨的桨距，由于目前市场上的螺旋桨的桨距都是固定的，往往难以适应多种不同的无人机飞行要求。
发明内容
本申请实施例提供一种螺旋桨、动力组件及无人机，能够解决现有的螺旋桨难以适应多种不同的无人机飞行要求的问题。
为解决上述技术问题，本申请采用的一个技术方案是：提供一种螺旋桨。该螺旋桨包括：桨榖和至少两个桨叶；所述桨榖包括壳体、上盖和至少两个齿轮，所述上盖安装于所述壳体的一端，并可相对所述壳体转动，所述上盖设置有齿部；所述至少两个齿轮收容于所述壳体内，并与所述齿部啮合；所述至少两个桨叶与所述至少两个齿轮一一对应，每个所述桨叶的一端安装于所述壳体内，并与相应的一个所述齿轮固定连接，所述至少两个桨叶可相对所述壳体转动；当所述上盖转动时，带动所述至少两个齿轮转动，使得所述至少两个桨叶相对所述转动，从而改变所述桨叶的螺距。
在其中一些实施例中，所述桨叶包括转动轴，所述转动轴位于所述桨叶的安装于所述桨榖的壳体内的一端；所述壳体的侧壁包括对应所述转动轴设置的第一通孔；所述齿轮包括对应所述转动轴设置的第二通孔，所述第二通孔包括圆形通孔，以及，沿着所述圆形通孔的中心轴方向，在所述圆形通孔的侧壁开设的凹槽；所述转动轴穿过所述第一通孔插入所述第二通孔，所述转动轴在与所述第二通孔连接处的形状与所述第二通孔适配，使得每个所述齿轮转动时，可带动所述转动轴转动，进而带动所述桨叶相对所述壳体转动。
在其中一些实施例中，所述桨叶还包括限位轴，所述限位轴位于所述桨叶的安装于所述桨榖的壳体内的一端；所述壳体的侧壁还包括环绕所述第一通孔的圆弧槽；所述齿轮还设置有边孔；所述限位轴穿过所述圆弧槽插入所述边孔，所述限位轴可在所述圆弧槽内滑动。
在其中一些实施例中，所述圆弧槽内设置有多个用于限定所述限位轴位置的限位凹部，所述多个限位凹部沿所述限位轴的滑动轨迹排布。
在其中一些实施例中，所述壳体朝向所述齿轮的内表面设置有第一圆形凸台，所述第一通孔贯穿所述第一圆形凸台，所述第一圆形凸台的中心轴线与所述第一通孔的中心线重合；所述齿轮朝向所述第一圆形凸台的表面设置有圆弧状的第一滑块，所述第一滑块的内径与所述第一圆形凸台的外径相同，所述第一滑块接触所述第一圆形凸台外周。
在其中一些实施例中，所述上盖的中心位置处设置有用于收容驱动装置的转轴的通孔，所述螺旋桨还包括弹性固定部件，所述弹性固定部件用于套设于所述转轴上，将所述上盖安装于所述壳体的一端。
在其中一些实施例中，所述齿部包括呈环状分布的多个齿。
在其中一些实施例中，所述上盖的所述齿部所在的平面与所述两个齿轮各自所在的平面分别垂直。
在其中一些实施例中，所述桨榖还包括与所述壳体的另一端固定连接的底盖，所述底盖朝向所述壳体的表面设置有至少两个定位板，每一所述齿轮设置于相应的一所述定位板和所述壳体的侧壁之间。
在其中一些实施例中，所述定位板设置有与所述桨叶相对应的支撑孔，所述转动轴穿过所述第一通孔、所述第二通孔以及所述支撑孔，所述桨叶可相对所述定位板转动。
在其中一些实施例中，所述定位板朝向所述齿轮的表面设置有第二圆形凸台，所述支撑孔贯穿所述第二圆形凸台，所述第二圆形凸台的中心轴线与所述支撑孔的中心线重合；所述齿轮朝向所述第二圆形凸台的表面设置有圆 弧状的第二滑块，所述第二滑块的内径与所述第二圆形凸台的外径相同，所述第二滑块接触所述第二圆形凸台外周。
在其中一些实施例中，所述底盖的中心位置处设置有用于将所述桨榖安装于驱动装置的内螺纹孔。
为解决上述技术问题，本申请采用的另一个技术方案是：提供一种动力组件。该动力组件包括：驱动装置和如上所述的螺旋桨。
为解决上述技术问题，本申请采用的又一个技术方案是：提供一种无人机。该无人机包括机身、机臂以及如上所述的动力组件，所述动力组件与所述机臂连接。
本申请实施例的有益效果是：区别于现有技术的情况，本申请实施例提供的螺旋桨包括桨榖和至少两个桨叶，所述桨榖包括壳体、上盖和至少两个齿轮，所述上盖安装于所述壳体的一端，并可相对所述壳体转动，所述上盖设置有齿部；所述至少两个齿轮收容于所述壳体内，并与所述齿部啮合；所述至少两个桨叶与所述至少两个齿轮一一对应，所述桨叶的一端安装于所述壳体内，并与所述齿轮固定连接，所述桨叶可相对所述壳体转动，在所述上盖转动时，带动所述至少两个齿轮转动，从而使所述桨叶相对所述壳体倾转相应的角度，即，改变所述桨叶的螺距，能够通过简单的结构对螺旋桨的桨叶的螺距进行调整，实现对螺旋桨的桨距的调整。当将该螺旋桨应用于无人机时，能够使该无人机适应不同的飞行要求，满足更多的飞行需求。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件 表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本申请其中一实施例提供的一种螺旋桨的立体结构示意图；
图2是图1所示的螺旋桨的分解图；
图3是图2所示的壳体的立体结构示意图；
图4是图2所示的上盖的立体结构示意图；
图5是图2所示的底盖的立体结构示意图；
图6是图2所示的齿轮的立体结构示意图；
图7是图1所示的螺旋桨沿A-A’方向的剖视图；
图8是图1所示的螺旋桨沿B-B’方向的剖视图；
图9是本申请另一实施例提供的一种动力组件的立体结构示意图。
具体实施方式
为了便于理解本申请，下面结合附图和具体实施例，对本申请进行更详细的说明。需要说明的是，当元件被表述“固定于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“上”、“下”、“左”、“右”、“水平的”、“垂直的”以及类似的表述只是为了说明的目的。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是用于限制本申请。此外，本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意项和所有的组合。
本申请实施例提供的螺旋桨是一种桨距可调型螺旋桨，具体包括一个桨榖和至少两个桨叶，桨榖包括壳体，壳体的一端安装有可相对壳体转动并且包括齿部的上盖，壳体内设置有与上盖的齿部啮合的至少两个齿轮，每一桨叶的一端安装于壳体内并与一相应的齿轮固定连接，每一桨叶可相对壳体转动，在进行桨距调节时，可以使上盖沿着特定的方向(顺时针方向或者逆时针方向)相对壳体转动，而在上盖转动时，上盖的齿部带动齿轮转动，从而使桨叶随着齿轮的转动而相对壳体倾转相应的角度，即，改变桨叶的螺距，进而实现螺旋桨的桨距的调整。其中，桨叶的螺距越大，螺旋桨的桨距越大。
本申请实施例提供的螺旋桨能够适用于任意涉及螺旋桨的技术领域，尤其适用于无人机技术领域。
具体地，下面结合说明书附图对本申请实施例提供的螺旋桨、动力组件及无人机进行详细说明。
图1是本申请其中一实施例提供的一种螺旋桨的立体结构示意图，该螺旋桨10包括：桨榖11和两个桨叶12，桨榖11用于固定安装于为螺旋桨10提供动力的驱动装置20(见图9)上，两个桨叶12固定安装于桨榖11上。
其中，可以理解的是，在本实施例中，仅以两个桨叶12为例进行说明，但不用于限定本申请，在其他的一些实施例中，桨叶12的数量也可以是3个、4个、6个等等。
请一并参阅图2，该桨榖11包括：壳体111、上盖112、两个齿轮113和底盖114。上盖112安装于壳体111的一端，并且可以相对壳体111转动；底盖114固定安装于壳体111的另一端(即，壳体111上远离上盖112的一端)；两个齿轮113收容于壳体111内，位于上盖112和底盖114之间，并且分别 与两个桨叶12一一对应。桨叶12的一端安装于壳体111内，并与其对应的齿轮113固定连接，桨叶12可以相对壳体111转动。其中，桨叶12上还设置有转动轴121和限位轴122，用于将桨叶12安装于桨榖11。转动轴121和限位轴122均设置在桨叶12的安装于桨榖11的壳体111内的一端。
其中，可以理解的是，齿轮113与桨叶12具有一一对应的关系，因此，在其他的一些实施例中，若桨叶12的数量包括n个，则齿轮113的数量也包括n个，n可以是大于或者等于2的正整数。
具体地，请参阅图3，壳体111大致呈中空柱状结构，其内开设一空腔，用于收容齿轮113。其中，为了使壳体111与齿轮113更加贴合，提升齿轮113的稳固性，壳体111对应齿轮113的侧壁为一平面，该侧壁包括对应桨叶12的转动轴121设置的第一通孔1111，以及，环绕第一通孔1111开设的圆弧槽1112。该圆弧槽1112是与第一通孔1111同心的圆弧状滑动槽，该圆弧槽1112对应桨叶12的限位轴122设置。桨叶12的转动轴121穿过第一通孔1111与齿轮113固定连接，而限位轴122则穿过圆弧槽1112与齿轮113固定连接。当齿轮113带动桨叶12相对壳体111转动时，限位轴122可以在圆弧槽1112内滑动。进一步地，在本实施例中，该圆弧槽1112内设置有多个限位凹部1112a，这些限位凹部1112a沿着圆弧槽1112所形成的滑动轨迹(即，限位轴122的滑动轨迹)排布，用于限定限位轴112的位置，从而将桨叶12与壳体111的倾转角限定于一定的角度，保证桨叶12在高速旋转的过程中不会晃动。
再者，请一并参阅图8，在本实施例中，为了在进行装配时方便定位齿轮113，以及减少螺旋桨10工作时齿轮113的晃动，壳体111朝向齿轮113的 内表面设置有第一圆形凸台1113，第一通孔1111贯穿第一圆形凸台1113，并且，第一通孔1111的中心线与第一圆形凸台1113的中心轴线重合。
请参阅图4，为了与壳体111的形状适配，上盖112的外形也大致呈圆形。上盖112朝向壳体111的表面设置有齿部1121，该齿部1121包括呈环状分布的多个齿，其中，所述环状分布可以是圆环状分布，也可以是椭圆环状分布。上盖112的中心位置处还设置有用于收容驱动装置的转轴的通孔1122，齿部1121的中心线与通孔1122的中心线同轴。螺旋桨10还包括弹性固定部件13(该弹性固定部件13可以是如图1或图2所示的卡簧)，当驱动装置的转轴穿过通孔1122后，弹性固定部件13套设于转轴上，从而将上盖112安装于壳体111的一端。在本实施例中，通过弹性固定部件13将上盖112安装在壳体111上，一方面是能够在不需要调整桨距时，增强上盖112与壳体111的连接的稳固性，第二方面是能够在需要调整桨距时，方便转动上盖112，第三方面是该结构简单，操作方便。当然，在实际应用中，也可以采用其他的方式将上盖112安装在壳体111上，本申请实施例对此也不作具体限定。
请参阅图5，底盖114可以通过任意合适的方式与壳体111固定连接，比如，一体式、螺钉连接、卡扣连接等等。底盖114朝向壳体111的表面设置有两个定位板1141，这两个定位板1141与两个齿轮113一一对应，每一齿轮113设置于相应的一定位板1141与壳体111的侧壁之间，从而进一步对齿轮113进行准确定位，以及进一步减少齿轮113的晃动。特别地，在本实施例中，为了防止齿轮113在转动时偏离轴心，以进一步对齿轮113进行准确定位，定位板1141设置有与桨叶12的转动轴131相对应的支撑孔1141a,桨叶12的转动轴121穿过壳体111的第一通孔1111、齿轮113以及支撑孔1141a，转 动轴121可以相对定位板1141转动。由此，在本实施例中，转动轴121比限位轴122略长。此外，为了方便安装齿轮113，定位板1141朝向齿轮113的表面设置有第二圆形凸台1142，支撑孔1141a贯穿第二圆形凸台1142,并且，第二圆形凸台1142的中心轴线与支撑孔1141a的中心线重合。
再者，请继续参阅图5，底盖114的中心位置处还设置有内螺纹孔1143，该内螺纹孔1143与驱动装置的转轴上的螺纹配合，可以将桨榖11固定安装于驱动装置上。
请参阅图6，齿轮113包括对应桨叶12的转动轴121设置的第二通孔1131，该第二通孔1131包括圆形通孔1131a，以及，沿着该圆形通孔1131a的中心轴方向，在该圆形通孔1131a的侧壁开设的凹槽1131b。该第二通孔1131与转动轴121适配，转动轴121穿过壳体111的第一通孔1111后插入该第二通孔1131，从而将桨叶12与齿轮113固定连接。当齿轮113转动时，桨叶12的转动轴121在凹槽1131b处受到力的作用而被齿轮113带动，随齿轮113转动，从而实现齿轮113带动桨叶12相对壳体111转动。其中，需说明的是，所述“第二通孔1131与转动轴121适配”是指：转动轴121在与第二通孔1131连接处的形状与第二通孔1131适配(如图8所示)。进一步地，齿轮113还包括对应桨叶12的限位轴122设置的边孔1132，限位轴122穿过壳体的圆弧槽1112插入边孔1132，从而增强桨叶12与齿轮113的连接的稳固性，以及，有利于齿轮113带动桨叶12转动。
请继续参阅图6，齿轮113朝向第一圆形凸台1113的表面设置有第一滑块1133，该第一滑块1133呈圆弧状，其内径与第一圆形凸台1113的外径相同，第一滑块1133接触第一圆形凸台1113外周，从而，当齿轮113转动时， 第一滑块1133可以沿着第一圆形凸台1113的外表面滑动。齿轮113朝向第二圆形凸台1142的表面设置有第二滑块1134，该第二滑块1134也呈圆弧状，其内径与第二圆形凸台1142的外径相同，第二滑块1134接触第二圆形凸台1142外周，从而，当齿轮113转动时，第二滑块1134可以沿着第二圆形凸台1142的外表面滑动。在本实施例中，通过第一圆形凸台1113与第一滑块1133之间的配合，以及，第二圆形凸台1142与第二滑块1134之间的配合，能够对齿轮113进行准确定位，以及，防止在螺旋桨10高速转动时引起齿轮113晃动，进而影响桨叶12的正常运转。当然，可以理解的是，在实际应用中，也可以省略第一圆形凸台1113与第一滑块1133，和/或，第二圆形凸台1142与第二滑块1134；或者，采用其他结构对齿轮113进行定位。
在实际应用中，在组装本申请实施例提供的螺旋桨10时，可以首先根据壳体111内的第一圆形凸台1113和齿轮113的第一滑块1133确定齿轮113在壳体111内的安装位置，并将齿轮113安装在壳体111内；然后根据第二圆形凸台1142与第二滑块1134安装底盖114，并将底盖114与壳体111固定连接；随后，转动齿轮113以使边孔1132与圆弧槽1112所形成的滑动轨迹对应，并将桨叶12的转动轴121穿过第一通孔1111、第二通孔1131以及支撑孔1141a，同时，将桨叶12的限位轴122穿过圆弧槽1112插入边孔1132；最后，安装上盖112，以使上盖112的齿部1121与齿轮113啮合。安装好后，上盖112的齿部1121所在的平面(在本实施例中，即上盖112所在的平面)与两个齿轮113各自所在的平面分别垂直。其中，转动轴121在与齿轮113连接处的形状与第二通孔1131适配，当转动轴121穿过第二通孔1131时，将桨叶12与齿轮113固定连接。
将本申请实施例提供的螺旋桨10组装完成后，如图7和图8所示，上盖112的齿部1121伸入壳体111的内腔，并与齿轮113啮合；齿轮113夹设于底盖114的定位板1141与壳体111的侧壁之间，并且，第一圆形凸台1113与第一滑块1133贴合，第二圆形凸台1142与第二滑块1134贴合；桨叶12的转动轴121穿过第一通孔1111、第二通孔1131和支撑孔1141a，限位轴122穿过圆弧槽1112插入边孔1132。从而，沿着特定的方向，比如，顺时针方向或者逆时针方向，转动上盖111时，上盖112的齿部1121可以带动齿轮113转动，又，由于齿轮113与其对应的桨叶12固定连接，且桨叶12可以相对壳体111以及定位板1141转动，因此，齿轮113转动时可以带动其对应的桨叶12相对壳体111转动，改变桨叶12的螺距。
其中，可以理解的是，在本实施例中，设置包括定位板1141的底盖114是为了对齿轮113进行定位，方便组装以及减少齿轮113的晃动。在其他的一些实施例中，也可以以其他的结构对齿轮113进行定位。进一步地，在定位板1141中设置支撑孔1141a，是为了保证齿轮113的同轴性，在另一些实施例中，也可以省略支撑孔1141a。
其中，在本实施例中，对应桨叶12的限位轴122设置的圆弧槽1112以及边孔1132包括两个，并且，这两个圆弧槽1112和边孔1132分别设置于第一通孔1111和第二通孔1131的相对两侧，主要是为了便于开模，使该壳体111能够同时适应正反桨，有利于批量化生产该壳体111。因此，可以理解的是，在其他的一些实施例中，也可以分别针对正桨叶和反桨叶的安装位置对应设置一个圆弧槽1112和一个边孔1132。
此外，在本实施例中，在圆弧槽1112内设置多个限位凹部1112a，主要 是为了将桨叶12相对于壳体111的倾转角限定于一定的角度，保证桨叶12在高速旋转的过程中不会晃动。因此，可以理解的是，在其他的一些实施例中，也可以省略该限位凹部1112a，或者，采用其他具有增强摩擦效果的结构替代限位凹部1112a。
再者，可以理解的是，在本实施例中，通过设置合适的第二通孔1131以及转动轴121的形状即可使桨叶12随着齿轮113的转动而相对壳体111转动。设置限位轴121、圆弧槽1112以及边孔1132主要用于辅助调整桨叶12相对壳体111的倾转角度。因此，在其他的一些实施例中，也可以省略限位轴121、圆弧槽1112以及边孔1132。
请参阅图9，为本申请另一实施例提供的一种动力组件100，该动力组件100包括：驱动装置20以及如上述实施例所述的螺旋桨10。该螺旋桨10固定安装在驱动装置20上，驱动装置20通过转轴21的旋转，带动螺旋桨10旋转，从而为螺旋桨10提供动力。
在其中一个实施例中，驱动装置20包括转轴21，该转轴21穿过设置于底盖114的中心位置处的内螺纹孔1143以及设置于上盖112的中心位置处的通孔1122。并且，转轴21在与内螺纹孔1143的连接处设置有一段螺纹211，通过该段螺纹211与内螺纹孔1143旋紧固定，将桨榖11固定安装在驱动装置20上。进一步地，为了增强桨榖11与驱动装置20连接的稳固性，还可以在底盖114的上方套设一个螺栓进行加固。
此外，为了提升上盖112与壳体111的连接的稳固性，转轴21也可以在套设弹性固定部件13的位置处设置一个环形卡槽212，弹性固定部件13可以套设在该环形卡槽212上。
进一步地，本申请又一实施例还提供了一种无人机，该无人机包括机身(未图示)、机臂(未图示)以及如上述实施例所述的动力组件100。所述机身与所述机臂的一端连接，所述动力组件100与所述机臂的另一端连接。其中，该无人机可以是任意类型的无人飞行器，如：旋翼无人机、倾转旋翼无人机等。其中，所述旋翼无人机可以包括但不限于：单旋翼、双旋翼、四旋翼、或六旋翼等。
总的来说，区别于现有技术的情况，本申请实施例提供的螺旋桨包括桨榖和至少两个桨叶，所述桨榖包括壳体、上盖和至少两个齿轮，所述上盖安装于所述壳体的一端，并可相对所述壳体转动，所述上盖设置有齿部；所述至少两个齿轮收容于所述壳体内，并与所述齿部啮合；所述至少两个桨叶与所述至少两个齿轮一一对应，所述桨叶的一端安装于所述壳体内，并与所述齿轮固定连接，所述桨叶可相对所述壳体转动，在所述上盖转动时，带动所述至少两个齿轮转动，从而使所述桨叶相对所述壳体倾转相应的角度，即，改变所述桨叶的螺距，能够通过简单的结构对螺旋桨的桨叶的螺距进行调整，从而实现对螺旋桨的桨距的调整。当将该螺旋桨应用于无人机时，能够使该无人机适应不同的飞行环境，满足更多的飞行需求。
需要说明的是，本申请的说明书及其附图中给出了本申请的较佳的实施例，但是，本申请可以通过许多不同的形式来实现，并不限于本说明书所描述的实施例，这些实施例不作为对本申请内容的额外限制，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。并且，上述各技术特征继续相互组合，形成未在上面列举的各种实施例，均视为本申请说明书记载的范围；进一步地，对本领域普通技术人员来说，可以根据上述说明加以 改进或变换，而所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (14)

  1. 一种螺旋桨，包括：桨榖和至少两个桨叶，其特征在于，
    所述桨榖包括壳体、上盖和至少两个齿轮，所述上盖安装于所述壳体的一端，并可相对所述壳体转动，所述上盖设置有齿部；所述至少两个齿轮收容于所述壳体内，并与所述齿部啮合；
    所述至少两个桨叶与所述至少两个齿轮一一对应，每个所述桨叶的一端安装于所述壳体内，并与相应的一个所述齿轮固定连接，所述至少两个桨叶可相对所述壳体转动；
    当所述上盖转动时，带动所述至少两个齿轮转动，使得所述至少两个桨叶相对所述壳体转动，从而改变所述桨叶的螺距。
  2. 根据权利要求1所述的螺旋桨，其特征在于，
    所述桨叶包括转动轴，所述转动轴位于所述桨叶的安装于所述桨榖的壳体内的一端；
    所述壳体的侧壁包括对应所述转动轴设置的第一通孔；
    所述齿轮包括对应所述转动轴设置的第二通孔，所述第二通孔包括圆形通孔，以及，沿着所述圆形通孔的中心轴方向，在所述圆形通孔的侧壁开设的凹槽；
    所述转动轴穿过所述第一通孔插入所述第二通孔，所述转动轴在与所述第二通孔连接处的形状与所述第二通孔适配，使得每个所述齿轮转动时，可带动所述转动轴转动，进而带动所述桨叶相对所述壳体转动。
  3. 根据权利要求2所述的螺旋桨，其特征在于，
    所述桨叶还包括限位轴，所述限位轴位于所述桨叶的安装于所述桨榖的壳体内的一端；
    所述壳体的侧壁还包括环绕所述第一通孔的圆弧槽；
    所述齿轮还设置有边孔；
    所述限位轴穿过所述圆弧槽插入所述边孔，所述限位轴可在所述圆弧槽内滑动。
  4. 根据权利要求3所述的螺旋桨，其特征在于，所述圆弧槽内设置有多个用于限定所述限位轴位置的限位凹部，所述多个限位凹部沿所述限位轴的滑动轨迹排布。
  5. 根据权利要求2至4中任一项所述的螺旋桨，其特征在于，所述壳体朝向所述齿轮的内表面设置有第一圆形凸台，所述第一通孔贯穿所述第一圆形凸台，所述第一圆形凸台的中心轴线与所述第一通孔的中心线重合；
    所述齿轮朝向所述第一圆形凸台的表面设置有圆弧状的第一滑块，所述第一滑块的内径与所述第一圆形凸台的外径相同，所述第一滑块接触所述第一圆形凸台外周。
  6. 根据权利要求1至5中任一项所述的螺旋桨，其特征在于，所述上盖的中心位置处设置有用于收容驱动装置的转轴的通孔，所述螺旋桨还包括弹性固定部件，所述弹性固定部件用于套设于所述转轴上，将所述上盖安装于 所述壳体的一端。
  7. 根据权利要求1至6中任一项所述的螺旋桨，其特征在于，所述齿部包括呈环状分布的多个齿。
  8. 根据权利要求1至7中任一项所述的螺旋桨，其特征在于，所述上盖的所述齿部所在的平面与所述两个齿轮各自所在的平面分别垂直。
  9. 根据权利要求2-8中任一项所述的螺旋桨，其特征在于，所述桨榖还包括与所述壳体的另一端固定连接的底盖，所述底盖朝向所述壳体的表面设置有至少两个定位板，每一所述齿轮设置于相应的一所述定位板和所述壳体的侧壁之间。
  10. 根据权利要求9所述的螺旋桨，其特征在于，所述定位板设置有与所述桨叶相对应的支撑孔，所述转动轴穿过所述第一通孔、所述第二通孔以及所述支撑孔，所述桨叶可相对所述定位板转动。
  11. 根据权利要求10所述的螺旋桨，其特征在于，所述定位板朝向所述齿轮的表面设置有第二圆形凸台，所述支撑孔贯穿所述第二圆形凸台，所述第二圆形凸台的中心轴线与所述支撑孔的中心线重合；
    所述齿轮朝向所述第二圆形凸台的表面设置有圆弧状的第二滑块，所述第二滑块的内径与所述第二圆形凸台的外径相同，所述第二滑块接触所述第 二圆形凸台外周。
  12. 根据权利要求9至11中任一项所述的螺旋桨，其特征在于，所述底盖的中心位置处设置有用于将所述桨榖安装于驱动装置的内螺纹孔。
  13. 一种动力组件，其特征在于，包括驱动装置和固定安装于所述驱动装置上的如权利要求1-12任一项所述的螺旋桨。
  14. 一种无人机，其特征在于，包括机身、机臂以及如权利要求13所述的动力组件，所述动力组件与所述机臂连接。
PCT/CN2018/101668 2017-09-28 2018-08-22 一种螺旋桨、动力组件及无人机 WO2019062389A1 (zh)

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CN207550509U (zh) * 2017-09-28 2018-06-29 深圳市道通智能航空技术有限公司 一种螺旋桨、动力组件及无人机
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB467488A (en) * 1935-09-17 1937-06-17 Cyril Dell Improvements in variable pitch airscrews and the like
CN201454087U (zh) * 2009-07-24 2010-05-12 孙楚 二叶恒速变距螺旋桨
CN105059536A (zh) * 2015-08-07 2015-11-18 胡家祺 变螺距旋翼装置以及多旋翼飞行器
CN105539832A (zh) * 2015-12-24 2016-05-04 上海埃威航空电子有限公司 一种可变螺距的多旋翼无人机动力装置
CN207550509U (zh) * 2017-09-28 2018-06-29 深圳市道通智能航空技术有限公司 一种螺旋桨、动力组件及无人机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB467488A (en) * 1935-09-17 1937-06-17 Cyril Dell Improvements in variable pitch airscrews and the like
CN201454087U (zh) * 2009-07-24 2010-05-12 孙楚 二叶恒速变距螺旋桨
CN105059536A (zh) * 2015-08-07 2015-11-18 胡家祺 变螺距旋翼装置以及多旋翼飞行器
CN105539832A (zh) * 2015-12-24 2016-05-04 上海埃威航空电子有限公司 一种可变螺距的多旋翼无人机动力装置
CN207550509U (zh) * 2017-09-28 2018-06-29 深圳市道通智能航空技术有限公司 一种螺旋桨、动力组件及无人机

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