WO2020062509A1 - 一种螺旋桨结构、动力装置及无人飞行器 - Google Patents
一种螺旋桨结构、动力装置及无人飞行器 Download PDFInfo
- Publication number
- WO2020062509A1 WO2020062509A1 PCT/CN2018/116676 CN2018116676W WO2020062509A1 WO 2020062509 A1 WO2020062509 A1 WO 2020062509A1 CN 2018116676 W CN2018116676 W CN 2018116676W WO 2020062509 A1 WO2020062509 A1 WO 2020062509A1
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- WIPO (PCT)
- Prior art keywords
- propeller
- driving member
- hub
- force receiving
- external driving
- Prior art date
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Classifications
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
Definitions
- Embodiments of the present invention belong to the technical field of propellers, and in particular, to a propeller structure and a power device and an unmanned aerial vehicle using the propeller structure.
- In-line type The drive shaft matched with the propeller is directly inserted into the inner hole of the propeller, and the propeller and the drive shaft form an interference fit to transmit torque and tensile force.
- an embodiment of the present invention provides a propeller structure to solve the problem that the internal structure of the motor is easily damaged when the end face of the in-line propeller is not in contact with the motor in the prior art. Pull out, the interference fit is too small, it is easy to pull out.
- a power unit and an unmanned aerial vehicle using the propeller structure are also provided.
- an embodiment of the present invention provides a propeller structure, which includes a propeller hub and a propeller blade connected to the propeller hub;
- the propeller hub is provided with a connecting part for connecting an external driving part, and a propeller removing auxiliary part is provided adjacent to the connecting part, and the propeller removing assisting part is used to cooperate with a propeller removing tool to quickly separate the connecting part and the external driving part.
- the propeller removal assisting portion includes at least one force receiving surface spaced apart from the external driving member by a certain distance.
- the propeller removal tool resists Hold on the force surface.
- the paddle disassembling auxiliary part is at least one groove provided at one end of the propeller hub, and the groove includes a force receiving surface facing the external driving member;
- a part of the hub other than the groove is abutted against the external driving member when the connecting portion is connected to the external driving member, and the groove can be inserted by a dismantling tool.
- the grooves are provided in pairs, and the two grooves provided in pairs are symmetrically disposed along a rotation axis of the propeller.
- each pair of force receiving surfaces of the groove and the force receiving surfaces of other paired grooves have different distances from the external driving member.
- a step structure is provided on the force receiving surface, and the step structure forms a plurality of force receiving surfaces, each of which has a different distance from the external driving member.
- the paddle disassembling auxiliary part is at least one groove provided on an end face of the hub close to the hub, or
- At least one protrusion provided on an end surface of the hub close to the hub;
- the end of the hub is abutted against the external driving member when the connecting portion is connected to the external driving member, and the space between the groove, the protrusion and the external driving structure can be inserted by the dismounting tool.
- grooves or the protrusions are provided in pairs, and the grooves or the protrusions provided in pairs are symmetrically disposed along a center axis of rotation of the propeller.
- each pair of force receiving surfaces of the groove and the force receiving surfaces of other paired grooves have different distances from the external driving member
- each pair of convex force receiving surfaces and other pairs of convex force receiving surfaces have different distances from the external driving member.
- a step structure is provided on the groove or the convex force receiving surface, and the step structure forms a plurality of force receiving surfaces, and each force receiving surface has a different distance from the external driving member.
- an embodiment of the present invention provides a power device including a driving member and a propeller structure as described above, a driving shaft of the driving member and a connecting portion of the propeller structure are detachably connected, and the propeller is connected when connected. An end of the hub contacts the driving member.
- the driving member is a motor, and there is a gap between a part of an end surface of the hub and a motor base of the motor.
- an embodiment of the present invention provides an unmanned aerial vehicle, which includes a fuselage and a plurality of arms extending outward from the fuselage, and each of the arms is correspondingly mounted with the power device as described above.
- a propeller disassembling auxiliary part is provided on the hub near the connecting part connected to the external driving member.
- the propeller disassembling tool can be used to quickly separate the propeller.
- the connection part and external driving parts when the power unit and unmanned aerial vehicle adopt such a propeller, can not only prevent the driving part from being damaged by the impact of the propeller during flight, but also realize the propeller and drive without damaging the propeller Separation of pieces.
- FIG. 1 is a perspective view of a propeller structure according to an embodiment of the present invention.
- FIG. 2 is an enlarged schematic view of A in FIG. 1;
- FIG. 3 is a front view of the propeller structure in FIG. 1;
- FIG. 4 is an enlarged schematic view of B in FIG. 3;
- FIG. 5 is a perspective view of another propeller structure according to an embodiment of the present invention.
- FIG. 6 is an enlarged schematic view of C in FIG. 5;
- FIG. 7 is a perspective view of another propeller structure according to an embodiment of the present invention.
- FIG. 8 is an enlarged schematic view of D in FIG. 7;
- FIG. 9 is a side view of a propeller structure provided by an embodiment of the present invention.
- FIG. 10 is a side view of another propeller structure provided by an embodiment of the present invention.
- FIG. 11 is a schematic diagram of a power device according to an embodiment of the present invention.
- FIG. 12 is a partial schematic diagram of an unmanned aerial vehicle according to an embodiment of the present invention.
- an embodiment herein means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention.
- the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they independent or alternative embodiments that are mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
- An embodiment of the present invention provides a propeller structure including a hub and a blade connected to the hub;
- the propeller hub is provided with a connecting portion for connecting an external driving member, and a propeller removing auxiliary portion is provided adjacent to the connecting portion.
- the propeller removing assisting portion is used to cooperate with a propeller removing tool to quickly separate the connecting portion and the external driving member. .
- an embodiment of the present invention further provides a power device including a driving member and the above-mentioned propeller structure.
- the driving shaft of the driving member is detachably connected with the connection portion of the propeller structure, and An end of the hub contacts the driving member.
- the driving member is a motor, and there is a gap between a part of an end surface of the hub and a motor base of the motor.
- an embodiment of the present invention further provides an unmanned aerial vehicle, which includes a fuselage and a plurality of arms extending outward from the fuselage, and each of the arms is correspondingly mounted with the power unit as described above.
- a propeller disassembling auxiliary part is provided on the hub near the connecting part connected to the external driving member.
- the propeller disassembling tool can be used to quickly separate the propeller.
- the connection part and external driving parts are described, and when the power unit and unmanned aerial vehicle adopt such a propeller, it can not only prevent the driving part from being damaged due to the impact of the propeller during flight, but also realize the propeller and the propeller without damaging the propeller. Separation of the driver.
- an embodiment of the present invention provides a propeller structure, which includes a propeller hub 10 and a propeller blade 20 connected to the propeller hub 10; the propeller hub 10 is provided with an external driving member for connection A connecting portion 11 of the driving shaft of the driving shaft is provided adjacent to the connecting portion 11 with a propeller removing auxiliary portion 30.
- the propeller removing assisting portion 30 is adapted to cooperate with a propeller removing tool to quickly separate the connecting portion 11 and an external driving member.
- the paddle disassembling auxiliary portion 30 in FIGS. 1 to 4 is at least one groove provided at one end of the hub 10, and the groove is provided through the hub 10.
- the groove includes a bearing surface 301 facing the external driving member.
- the end surface 101 of the hub 10 will be connected to the external driving member. Resistance, that is, one end of the hub 10 except the groove is in contact with the external driving member, and the groove can be inserted by the paddle removing tool.
- the force receiving surface 301 and the external driving member At a certain distance, when the propeller removing aid 30 cooperates with the propeller removing tool, when the propeller removing tool is inserted into the groove, it will abut against the force receiving surface 301 and the surface of the external driving member, respectively.
- the principle of lever can pry the propeller hub 10 from the external driving part, and realize the separation of the propeller from the external driving part.
- the groove may not be provided through the hub 10, as shown in FIG. 5 and FIG. 6, the groove is a cut portion on the hub 10, and the same
- the cutting part also includes a force receiving surface 301 facing the external driving member.
- the difference between the propeller structure provided in FIGS. 5 and 6 and the propeller structure provided in FIGS. 1 to 4 is that the groove does not penetrate the hub. 10.
- the grooves may be provided in pairs, and the two grooves provided in pairs are symmetrically disposed along the center axis of rotation of the propeller, such as the propellers provided in FIGS. 1 to 4.
- the structure is provided with a pair of grooves, and the propeller structure provided in FIG. 5 and FIG. 6 is also provided with a pair of grooves, while the propeller structure provided in FIG. 7 and FIG. 8 is provided with two pairs of grooves, respectively, The axis of rotation of the propeller is symmetrically arranged.
- multiple pairs of grooves may be provided or only a single groove may be provided.
- the force receiving surfaces 301 of each pair of grooves and other pairs of grooves may be set differently between the force receiving surfaces 301 of the grooves and the external driving member. Pitch, in this way can be adapted to different size removal tools.
- a step structure may be provided on the force receiving surface 301 in the same groove. The step structure may form a plurality of force receiving surfaces 301, each of the force receiving surfaces 301 and an external driving member. There are different distances between them. In this way, different sizes of propeller removal tools can also be adapted.
- the propeller removal assisting portion 30 is a groove adjacent to the end surface 101 of the hub 10, which is different from this arrangement.
- the dismantling auxiliary part 30 is also at least one groove provided on the hub 10 near the end surface 101 of the hub 10, and these grooves are not adjacent to the end surface 101 of the hub 10, and the same grooves may also be used.
- the groove shown in FIG. 9 is different from the groove shown in FIG. 1 to FIG. 8 in that the groove shown in FIG. 9 includes two force receiving surfaces 301. After the groove, the propeller removal tool will abut against the two force receiving surfaces 301, respectively.
- the propeller hub 10 can also be pried up from the external driving member to achieve the separation of the propeller from the external driving member.
- the grooves in FIG. 9 may also be provided in pairs, and the two grooves provided in pairs are symmetrically disposed along the rotation central axis of the propeller.
- multiple pairs of grooves may be provided or only a single groove may be provided.
- the force receiving surfaces 301 of each pair of grooves and other pairs of grooves may be set differently between the force receiving surfaces 301 of the grooves and the external driving member. Pitch, in this way can be adapted to different size removal tools.
- a step structure may be provided on the force receiving surface 301 in the same groove. The step structure may form multiple force receiving surfaces 301, and each force receiving surface 301 and an external driving member With different pitches, this way can also be adapted to different size removal tools.
- the groove in FIG. 9 may also be divided into two cases of penetrating the hub 10 and not penetrating the hub 10, and may be specifically set according to actual situations.
- the groove in FIG. 9 may also be an annular groove that surrounds the outer periphery of the hub 10, and a plurality of annular grooves of different sizes may be provided on the hub 10.
- the propeller removing auxiliary portion 30 may also be close to the propeller hub 10. At least one protrusion provided on the end surface 101 of the hub 10, and these protrusions are not adjacent to the end surface 101 of the hub 10.
- the end surface 101 of the hub 10 will bear against the surface of the external driving member.
- the protrusion forms a gap with the surface of the external driving member, and the space of the gap can be inserted by the dismantling tool.
- the propeller removal tool will abut against the raised force receiving surface 301 and the surface of the external driving member, respectively.
- the propeller hub 10 can also be pried up from the external driving member to achieve the separation of the propeller from the external driving member.
- the protrusions are arranged in pairs, and the protrusions are arranged symmetrically along the axis of rotation of the propeller, for example, a pair of protrusions are provided in FIG. 10.
- each pair of convex force receiving surfaces 301 and other pairs of convex force receiving surfaces 301 have different distances from the external driving member. This way can be adapted to different size removal tools.
- a stepped structure may be provided on the raised force receiving surface 301, and the step structure forms a plurality of force receiving surfaces 301, and each of the force receiving surfaces 301 is different from an external driving member. In this way, different sizes of propeller removal tools can be adapted in this way.
- the protrusion in FIG. 10 may also be an annular protrusion provided around the outer periphery of the hub 10, and a plurality of protrusions of different sizes may be provided on the hub 10.
- the end surface 101 of the propeller hub 10 when the propeller structure is mounted on an external driving member, the end surface 101 of the propeller hub 10 will contact the surface of the driving member, and the external shaft of the external driving member will not be driven when the propeller is impacted by an external force. It causes damage, and at the same time, by disposing the propeller disassembling auxiliary portion 30 on the hub 10 adjacent to the connecting portion 11 connecting the external driving member, the end surface 101 of the propeller hub 10 can also cooperate with the dismantling tool quickly when the end face 101 of the propeller 10 contacts the driving member. Separating the connecting portion 11 and the external driving part will not cause damage to the propeller during the process of disassembling the propeller.
- the propeller structure provided in this embodiment can simultaneously realize the protection of the drive shaft, allow the propeller to maintain a large interference fit force to maintain a stable connection, and allow the use of a propeller removal tool to insert between the propeller end face 101 and the surface of the driver to facilitate propeller removal effect.
- an embodiment of the present invention further provides a power device, which includes a driving member 40 and a propeller structure as described above.
- the driving shaft 41 of the driving member 40 is detachably connected to the connecting portion 11 of the propeller structure.
- an end portion of the hub 10 contacts the driving member 40 during connection.
- the driving member 40 is a motor, and there is a gap between a part of the end surface 101 of the hub 10 and the motor base of the motor.
- the propeller structure used in the power device provided in the embodiment of the present invention When the propeller structure used in the power device provided in the embodiment of the present invention is connected to the driving member 40, the propeller is allowed to maintain a large interference fit force to maintain a stable connection, and at the same time, the end of the hub 10 contacts the driving member 40, The propeller 40 will not be damaged when it is impacted by an external force during the rotation of the propeller.
- the propeller disassembly assisting unit 30 and the dismantling tool can achieve rapid separation of the propeller and the drive member 40 without damaging the propeller.
- an embodiment of the present invention further provides an unmanned aerial vehicle, which includes a fuselage 50 and a plurality of arms 51 extending outward from the fuselage 50, and each of the arms 51 is correspondingly installed as described above.
- Power unit described above.
- the propeller assisting portion 30 on the hub 10 adjacent to the connecting portion 11 connected to the external driving member 40, the end surface 101 of the hub 10 and the driving member 40 can contact each other.
- the propeller removal tool is used to quickly separate the connecting portion 11 and the external driving member 40, when the power unit and the unmanned aerial vehicle adopt such a propeller, the driving member 40 can be prevented from being damaged due to the impact of the propeller during flight, The propeller and the driver 40 are separated without damaging the propeller.
- the propeller structure in the power unit used by the embodiment of the present invention When the propeller structure in the power unit used by the embodiment of the present invention is connected to the driving member 40, the propeller is allowed to maintain a large interference fit force to maintain a stable connection, and at the same time, the end of the hub 10 contacts the The driving member 40 is described.
- the driving shaft 41 of the driving member 40 will not be damaged when it is impacted by an external force during the rotation of the propeller.
- the propeller removing member 30 and the dismantling tool can realize the propeller and the driving member 40 without damaging the propeller. Rapid separation to achieve rapid removal or replacement of the propeller of the UAV.
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Abstract
一种螺旋桨结构和采用该螺旋桨结构的动力装置及无人飞行器，其中所述螺旋桨结构包括桨毂(10)、与所述桨毂(10)连接的桨叶(20)；所述桨毂(10)上设置有用于连接外部驱动件的连接部(11)，临近所述连接部(11)设置有拆桨辅助部(30)，所述拆桨辅助部(30)用于配合拆桨工具快速分离所述连接部(11)和外部驱动件。本发明实施例提供的方案通过在桨毂(10)上临近连接外部驱动件的连接部(11)的位置设置拆桨辅助部(30)，在桨毂(10)的端面(101)与驱动件(40)接触的情况也能够配合拆桨工具快速分离所述连接部(11)和外部驱动件，动力装置和无人飞行器采用这种螺旋桨时，既能避免驱动件在飞行过程中因螺旋桨的撞击而受到损坏，也能在不损坏螺旋桨的情况下实现螺旋桨和驱动件的分离。
Description
本发明实施例属于螺旋桨技术领域，尤其涉及一种螺旋桨结构和采用该螺旋桨结构的动力装置及无人飞行器。
现有的小型多旋翼飞行器中的螺旋桨的安装方式一般有三种：
1、直插式：与螺旋桨配合的驱动轴直接插入螺旋桨内孔中，螺旋桨与驱动轴形成过盈配合，以此传递扭矩和拉力。
2、自紧式：与螺旋桨配合的驱动轴具有外螺纹特征，而螺旋桨内孔具有对应的内螺纹特征，两者通过螺纹配合产生紧固效果，且螺旋桨所受扭矩方向与螺纹拧紧方向一致。
3、快拆式：该种方式比较多样，一般通过弹簧、卡槽等机构设计实现螺旋桨与驱动轴的快速安装和拆解。
现有的直插式螺旋桨与驱动电机有两种配置方式：
1、直插式螺旋桨的端面不与电机接触，这种情况下，螺旋桨受到的撞击将会传导到驱动轴上，而无法通过将力传导到电机外壳的方式来缓解驱动轴受到的冲击，这样容易对电机内部结构造成损坏；
2、直插式螺旋桨的端面与电机接触，这种情况下，若螺旋桨与驱动轴之间的过盈配合产生的力太大，则用户难以在不破坏螺旋桨的情况下将其拔出，反之，若过盈配合产生的力太小，则飞行器飞行过程中螺旋桨容易从驱动轴上脱出。
发明内容
为了解决上述问题，本发明实施例提供一种螺旋桨结构，以解决现有技术中直插式螺旋桨的端面不与电机接触时容易对电机内部结构造成损坏，而接触时过盈配合过大则无法拔出、过盈配合过小则容易脱出的问题。此外还提供了采用该螺旋桨结构的动力装置及无人飞行器。
本发明实施例采用了如下的技术方案。
一方面，本发明实施例提供一种螺旋桨结构，其包括桨毂、与所述桨毂连接的桨叶；
所述桨毂上设置有用于连接外部驱动件的连接部，临近所述连接部设置有拆桨辅助部， 所述拆桨辅助部用于配合拆桨工具快速分离所述连接部和外部驱动件。
作为本发明一种可实施的方案，所述拆桨辅助部包括至少一个与所述外部驱动件间隔一定距离的受力面，所述拆桨辅助部与拆桨工具配合时，拆桨工具抵持于所述受力面。
作为本发明一种可实施的方案，所述拆桨辅助部为设置于所述桨毂一端的至少一个凹槽，所述凹槽包括正对外部驱动件的受力面；
所述桨毂一端除所述凹槽以外的部分在所述连接部连接外部驱动件时抵持于外部驱动件，所述凹槽可供拆桨工具插入。
进一步地，所述凹槽成对设置，成对设置的两个所述凹槽沿所述螺旋桨的旋转中轴线对称设置。
进一步地，每对所述凹槽的受力面和其他成对的凹槽的受力面与外部驱动件之间具有不同的间距。
进一步地，所述受力面上设置有台阶结构，所述台阶结构形成多个受力面，每个受力面与外部驱动件之间具有不同的间距。
作为本发明一种可实施的方案，所述拆桨辅助部为所述桨毂上靠近所述桨毂的端面设置的至少一个凹槽，或者
为所述桨毂上靠近所述桨毂的端面设置的至少一个凸起；
所述桨毂的端部在所述连接部连接外部驱动件时抵持于外部驱动件，所述凹槽、所述凸起与外部驱动结构之间的空间可供拆桨工具插入。
进一步地，所述凹槽或者所述凸起成对设置，成对设置的所述凹槽或者所述凸起沿所述螺旋桨的旋转中轴线对称设置。
进一步地，每对所述凹槽的受力面和其他成对的凹槽的受力面与外部驱动件之间具有不同的间距；
或者，每对所述凸起的受力面和其他成对的凸起的受力面与外部驱动件之间具有不同的间距。
进一步地，所述凹槽或者所述凸起的受力面上设置有台阶结构，所述台阶结构形成多个受力面，每个受力面与外部驱动件之间具有不同的间距。
另一方面，本发明实施例提供一种动力装置，包括驱动件和如上所述的螺旋桨结构，所述驱动件的驱动轴与所述螺旋桨结构的连接部可拆卸连接，且连接时所述桨毂的端部接触所述驱动件。
作为本发明一种可实施的方案，所述驱动件为电机，所述桨毂的端面的一部分与所述 电机的电机座之间具有间隔。
另一方面，本发明实施例提供一种无人飞行器，包括机身和自所述机身向外延伸的多个机臂，每个机臂上对应安装有如上所述的动力装置。
根据本发明实施例提供的螺旋桨结构通过在桨毂上临近连接外部驱动件的连接部的位置设置拆桨辅助部，在桨毂的端面与驱动件接触的情况，能够配合拆桨工具快速分离所述连接部和外部驱动件，动力装置和无人飞行器采用这种螺旋桨时，既能避免驱动件在飞行过程中因螺旋桨的撞击而受到损坏，也能在不损坏螺旋桨的情况下实现螺旋桨和驱动件的分离。
为了更清楚地说明本发明实施例中的方案，下面将对实施例描述中所需要使用的附图作一个简单介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的螺旋桨结构的立体图；
图2为图1中A的放大示意图；
图3为图1中的螺旋桨结构的正视图；
图4为图3中B的放大示意图；
图5为本发明实施例提供的另一螺旋桨结构的立体图；
图6为图5中C的放大示意图；
图7为本发明实施例提供的另一螺旋桨结构的立体图；
图8为图7中D的放大示意图；
图9为本发明实施例提供的一种螺旋桨结构的侧视图；
图10为本发明实施例提供的另一种螺旋桨结构的侧视图；
图11为本发明实施例提供的动力装置的示意图；
图12为本发明实施例提供的无人飞行器的局部示意图。
附图标记说明：
10 桨毂
101 端面
11 连接部
20 桨叶
30 拆桨辅助部
301 受力面
40 驱动件
41 驱动轴
50 机身
51 机臂
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同；本文中在本发明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，不是旨在于限制本发明；本发明的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。本发明的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本发明的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
本发明实施例提供一种螺旋桨结构，其包括桨毂、与所述桨毂连接的桨叶；
所述桨毂上设置有用于连接外部驱动件的连接部，临近所述连接部设置有拆桨辅助部，所述拆桨辅助部用于配合拆桨工具快速分离所述连接部和外部驱动件。
基于上述螺旋桨结构，本发明实施例还提供一种动力装置，包括驱动件和如上所述的螺旋桨结构，所述驱动件的驱动轴与所述螺旋桨结构的连接部可拆卸连接，且连接时所述桨毂的端部接触所述驱动件。
作为本发明一种可实施的方案，所述驱动件为电机，所述桨毂的端面的一部分与所述电机的电机座之间具有间隔。
基于上述动力装置，本发明实施例还提供一种无人飞行器，包括机身和自所述机身向外延伸的多个机臂，每个机臂上对应安装有如上所述的动力装置。
根据本发明实施例提供的螺旋桨结构通过在桨毂上临近连接外部驱动件的连接部的位置设置拆桨辅助部，在桨毂的端面与驱动件接触的情况，能够配合拆桨工具快速分离所 述连接部和外部驱动件，而动力装置和无人飞行器采用这种螺旋桨时，既能避免驱动件在飞行过程中因螺旋桨的撞击而受到损坏，也能在不损坏螺旋桨的情况下实现螺旋桨和驱动件的分离。
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。
如图1至图4所示，本发明实施例提供一种螺旋桨结构，其包括桨毂10、与所述桨毂10连接的桨叶20；所述桨毂10上设置有用于连接外部驱动件的驱动轴的连接部11，临近所述连接部11设置有拆桨辅助部30，所述拆桨辅助部30用于配合拆桨工具快速分离所述连接部11和外部驱动件。
在本实施例中，图1至图4中所述拆桨辅助部30为设置于所述桨毂10一端的至少一个凹槽，且该凹槽贯穿所述桨毂10设置。如图2和图4所示，所述凹槽包括正对外部驱动件的受力面301，当所述螺旋桨结构与外部驱动件连接时，所述桨毂10的端面101将与外部驱动件抵持，即所述桨毂10的一端除所述凹槽以外的部分均接触外部驱动件，所述凹槽可供拆桨工具插入，此时所述受力面301与所述外部驱动件将间隔一定距离，所述拆桨辅助部30与拆桨工具配合时，当拆桨工具插入所述凹槽后，其将分别抵持于所述受力面301和外部驱动件的表面，借助杠杆原理，可以将桨毂10从外部驱动件中撬起，实现螺旋桨与外部驱动件的分离。
在另一些实施例中，所述凹槽也可以不贯穿所述桨毂10设置，如图5和图6所示，所述凹槽为在所述桨毂10上的一个削切部，同样的，该削切部也包括正对外部驱动件的受力面301，图5和图6所提供的螺旋桨结构与图1至图4所提供的螺旋桨结构的区别主要在于凹槽不贯穿桨毂10。
进一步地，在上述实施例的基础上，所述凹槽可成对设置，成对设置的两个所述凹槽沿所述螺旋桨的旋转中轴线对称设置，比如图1至图4提供的螺旋桨结构设置了一对凹槽，图5和图6提供的螺旋桨结构也设置了一对凹槽，而图7和图8提供的螺旋桨结构设置了两对凹槽，这两对凹槽分别沿所述螺旋桨的旋转中轴线对称设置。当然，在其他实施例中可以设置多对凹槽或者只设置单个凹槽。在一些实施例中，当设置有多对凹槽时，可以将每对所述凹槽的受力面301和其他成对的凹槽的受力面301与外部驱动件之间设置成不同的间距，采用这种方式可以适配不同尺寸的拆桨工具。在另一些实施例中，也可在同一个凹槽中的所述受力面301上设置台阶结构，所述台阶结构可形成多个受力面301，每个受力面301与外部驱动件之间具有不同的间距，采用这种方式也可以适配不同尺寸的拆桨工 具。
在上述实施例中，所述拆桨辅助部30是与桨毂10的端面101邻接的凹槽，不同于这种设置方式，在本发明的另一些实施例中，如图9所示，所述拆桨辅助部30也为所述桨毂10上靠近所述桨毂10的端面101设置的至少一个凹槽，这些凹槽与桨毂10的端面101不邻接，同样的这些凹槽也可供拆桨工具插入，图9中所示的凹槽与图1至图8所示的凹槽的区别在于，图9中所示的凹槽包括两个受力面301，当拆桨工具插入凹槽后，拆桨工具将分别抵持在这两个受力面301上，同样的基于杠杆原理也能将桨毂10从外部驱动件中撬起，实现螺旋桨与外部驱动件的分离。
进一步地，在本实施例中，图9中的凹槽也可成对设置，成对设置的两个凹槽沿所述螺旋桨的旋转中轴线对称设置。当然，在其他实施例中可以设置多对凹槽或者只设置单个凹槽。在一些实施例中，当设置有多对凹槽时，可以将每对所述凹槽的受力面301和其他成对的凹槽的受力面301与外部驱动件之间设置成不同的间距，采用这种方式可以适配不同尺寸的拆桨工具。在另一些实施例中，也可在同一个凹槽中的受力面301上设置台阶结构，所述台阶结构可形成多个受力面301，每个受力面301与外部驱动件之间具有不同的间距，采用这种方式也可以适配不同尺寸的拆桨工具。
在本实施例中，图9中的凹槽也可分为贯穿桨毂10和不贯穿桨毂10两种情形，具体可根据实际情况设置。
进一步地，在本实施例中，图9中的凹槽也可以是环绕桨毂10外周的环形槽，在桨毂10上可设置多个不同尺寸的环形槽。
当然，在本发明另一些实施例中，不同于图1至图9所示的凹槽的设置方式，如图10所示，所述拆桨辅助部30也可以是所述桨毂10上靠近所述桨毂10的端面101设置的至少一个凸起，这些凸起与桨毂10的端面101不邻接。当螺旋桨与外部驱动件连接时，桨毂10的端面101将抵持于外部驱动件的表面，此时该凸起与外部驱动件的表面形成间距，该间距的空间可供拆桨工具插入，拆桨工具将分别抵持在该凸起的受力面301和外部驱动件的表面，借助杠杆原理也能将桨毂10从外部驱动件中撬起，实现螺旋桨与外部驱动件的分离。
进一步地，在本实施例中，所述凸起成对设置，成对设置的者所述凸起沿所述螺旋桨的旋转中轴线对称设置，比如图10中设置有一对凸起。在一些实施例中，当设置有多对凸起时，每对所述凸起的受力面301和其他成对的凸起的受力面301与外部驱动件之间具 有不同的间距，采用这种方式可以适配不同尺寸的拆桨工具。在一些实施例中，也可以是所述凸起的受力面301上设置有台阶结构，所述台阶结构形成多个受力面301，每个受力面301与外部驱动件之间具有不同的间距，采用这种方式可以适配不同尺寸的拆桨工具。
进一步地，在本实施例中，图10中的凸起也可以是环绕桨毂10外周设置的环形凸起，在桨毂10上可设置多个不同尺寸的凸起。
根据本发明实施例提供的螺旋桨结构，当其安装在外部驱动件上时，桨毂10的端面101会与驱动件表面接触，螺旋桨旋转过程中受外力撞击时不会对外部驱动件的驱动轴造成损坏，同时通过在桨毂10上临近连接外部驱动件的连接部11的位置设置拆桨辅助部30，在桨毂10的端面101接触在驱动件的情况下，也能够配合拆桨工具快速分离所述连接部11和外部驱动件，拆桨过程中不会对螺旋桨造成损坏，相比于现有技术，安装和拆卸更加方便。采用这种螺旋桨结构，可以实现螺旋桨与驱动件的驱动轴较大过盈力，使螺旋桨不容易脱落。即本实施例提供的螺旋桨结构可以同时实现保护驱动轴、允许螺旋桨保持较大的过盈配合力以保持连接稳定、允许使用拆桨工具插入螺旋桨端面101与驱动件表面之间以方便拆桨等效果。
如图11所示，本发明实施例还提供一种动力装置，包括驱动件40和如上所述的螺旋桨结构，所述驱动件40的驱动轴41与所述螺旋桨结构的连接部11可拆卸连接，且连接时所述桨毂10的端部接触所述驱动件40。作为本发明一种可实施的方案，所述驱动件40为电机，所述桨毂10的端面101的一部分与所述电机的电机座之间具有间隔。
本发明实施例提供的动力装置采用的螺旋桨结构与驱动件40连接时，允许螺旋桨保持较大的过盈配合力以保持连接稳定，同时所述桨毂10的端部接触所述驱动件40，螺旋桨旋转过程中受外力撞击时不会对驱动件40的驱动轴41造成损坏，通过拆桨辅助部30配合拆桨工具可以在不损坏螺旋桨的情况下实现螺旋桨和驱动件40的快速分离。
如图12所示，本发明实施例还提供一种无人飞行器，包括机身50和自所述机身50向外延伸的多个机臂51，每个机臂51上对应安装有如上所述的动力装置。
根据本发明实施例提供的螺旋桨结构通过在桨毂10上临近连接外部驱动件40的连接部11的位置设置拆桨辅助部30，在桨毂10的端面101与驱动件40接触的情况，能够配合拆桨工具快速分离所述连接部11和外部驱动件40，动力装置和无人飞行器采用这种螺旋桨时，既能避免驱动件40在飞行过程中因螺旋桨的撞击而受到损坏，也能在不损坏螺旋桨的情况下实现螺旋桨和驱动件40的分离。
本发明实施例提供的无人飞行器采用的动力装置中的螺旋桨结构与驱动件40连接时，允许螺旋桨保持较大的过盈配合力以保持连接稳定，同时所述桨毂10的端部接触所述驱动件40，螺旋桨旋转过程中受外力撞击时不会对驱动件40的驱动轴41造成损坏，通过拆桨辅助部30配合拆桨工具可以在不损坏螺旋桨的情况下实现螺旋桨和驱动件40的快速分离，以实现无人飞行器的螺旋桨的快速拆卸或更换。
显然，以上所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例，附图中给出了本发明的较佳实施例，但并不限制本发明的专利范围。本发明可以以许多不同的形式来实现，相反地，提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来而言，其依然可以对前述各具体实施方式所记载的技术方案进行修改，或者对其中部分技术特征进行等效替换。凡是利用本发明说明书及附图内容所做的等效结构，直接或间接运用在其他相关的技术领域，均同理在本发明专利保护范围之内。
Claims (32)
- 一种螺旋桨结构，其特征在于，包括桨毂、与所述桨毂连接的桨叶；所述桨毂上设置有用于连接外部驱动件的连接部，临近所述连接部设置有拆桨辅助部，所述拆桨辅助部用于配合拆桨工具快速分离所述连接部和外部驱动件。
- 根据权利要求1所述的螺旋桨结构，其特征在于，所述拆桨辅助部包括至少一个与所述外部驱动件间隔一定距离的受力面，所述拆桨辅助部与拆桨工具配合时，拆桨工具抵持于所述受力面。
- 根据权利要求2所述的螺旋桨结构，其特征在于，所述拆桨辅助部为设置于所述桨毂一端的至少一个凹槽，所述凹槽包括正对外部驱动件的受力面；所述桨毂一端除所述凹槽以外的部分在所述连接部连接外部驱动件时抵持于外部驱动件，所述凹槽可供拆桨工具插入。
- 根据权利要求3所述的螺旋桨结构，其特征在于，所述凹槽成对设置，成对设置的两个所述凹槽沿所述螺旋桨的旋转中轴线对称设置。
- 根据权利要求4所述的螺旋桨结构，其特征在于，每对所述凹槽的受力面和其他成对的凹槽的受力面与外部驱动件之间具有不同的间距。
- 根据权利要求3所述的螺旋桨结构，其特征在于，所述受力面上设置有台阶结构，所述台阶结构形成多个受力面，每个受力面与外部驱动件之间具有不同的间距。
- 根据权利要求2所述的螺旋桨结构，其特征在于，所述拆桨辅助部为所述桨毂上靠近所述桨毂的端面设置的至少一个凹槽，或者为所述桨毂上靠近所述桨毂的端面设置的至少一个凸起；所述桨毂的端部在所述连接部连接外部驱动件时抵持于外部驱动件，所述凹槽、所述凸起与外部驱动结构之间的空间可供拆桨工具插入。
- 根据权利要求7所述的螺旋桨结构，其特征在于，所述凹槽或者所述凸起成对设置，成对设置的所述凹槽或者所述凸起沿所述螺旋桨的旋转中轴线对称设置。
- 根据权利要求8所述的螺旋桨结构，其特征在于，每对所述凹槽的受力面和其他成对的凹槽的受力面与外部驱动件之间具有不同的间距；或者，每对所述凸起的受力面和其他成对的凸起的受力面与外部驱动件之间具有不同的间距。
- 根据权利要求7所述的螺旋桨结构，其特征在于，所述凹槽或者所述凸起的受力 面上设置有台阶结构，所述台阶结构形成多个受力面，每个受力面与外部驱动件之间具有不同的间距。
- 一种动力装置，其特征在于，包括驱动件和螺旋桨结构，所述螺旋桨结构包括桨毂、与所述桨毂连接的桨叶；所述桨毂上设置有用于连接外部驱动件的连接部，临近所述连接部设置有拆桨辅助部，所述拆桨辅助部用于配合拆桨工具快速分离所述连接部和外部驱动件；所述驱动件的驱动轴与所述螺旋桨结构的连接部可拆卸连接，且连接时所述桨毂的端部接触所述驱动件。
- 根据权利要求11所述的动力装置，其特征在于，所述拆桨辅助部包括至少一个与所述外部驱动件间隔一定距离的受力面，所述拆桨辅助部与拆桨工具配合时，拆桨工具抵持于所述受力面。
- 根据权利要求12所述的动力装置，其特征在于，所述拆桨辅助部为设置于所述桨毂一端的至少一个凹槽，所述凹槽包括正对外部驱动件的受力面；所述桨毂一端除所述凹槽以外的部分在所述连接部连接外部驱动件时抵持于外部驱动件，所述凹槽可供拆桨工具插入。
- 根据权利要求13所述的动力装置，其特征在于，所述凹槽成对设置，成对设置的两个所述凹槽沿所述螺旋桨的旋转中轴线对称设置。
- 根据权利要求14所述的动力装置，其特征在于，每对所述凹槽的受力面和其他成对的凹槽的受力面与外部驱动件之间具有不同的间距。
- 根据权利要求13所述的动力装置，其特征在于，所述受力面上设置有台阶结构，所述台阶结构形成多个受力面，每个受力面与外部驱动件之间具有不同的间距。
- 根据权利要求12所述的动力装置，其特征在于，所述拆桨辅助部为所述桨毂上靠近所述桨毂的端面设置的至少一个凹槽，或者为所述桨毂上靠近所述桨毂的端面设置的至少一个凸起；所述桨毂的端部在所述连接部连接外部驱动件时抵持于外部驱动件，所述凹槽、所述凸起与外部驱动结构之间的空间可供拆桨工具插入。
- 根据权利要求17所述的动力装置，其特征在于，所述凹槽或者所述凸起成对设置，成对设置的所述凹槽或者所述凸起沿所述螺旋桨的旋转中轴线对称设置。
- 根据权利要求18所述的动力装置，其特征在于，每对所述凹槽的受力面和其他成对的凹槽的受力面与外部驱动件之间具有不同的间距；或者，每对所述凸起的受力面和其他成对的凸起的受力面与外部驱动件之间具有不同的间距。
- 根据权利要求17所述的动力装置，其特征在于，所述凹槽或者所述凸起的受力面上设置有台阶结构，所述台阶结构形成多个受力面，每个受力面与外部驱动件之间具有不同的间距。
- 根据权利要求11至20任一项所述的动力装置，其特征在于，所述驱动件为电机，所述桨毂的端面的一部分与所述电机的电机座之间具有间隔。
- 一种无人飞行器，其特征在于，包括机身和自所述机身向外延伸的多个机臂，每个机臂上对应安装有动力装置；所述动力装置，包括驱动件和螺旋桨结构，所述螺旋桨结构包括桨毂、与所述桨毂连接的桨叶；所述桨毂上设置有用于连接外部驱动件的连接部，临近所述连接部设置有拆桨辅助部，所述拆桨辅助部用于配合拆桨工具快速分离所述连接部和外部驱动件；所述驱动件的驱动轴与所述螺旋桨结构的连接部可拆卸连接，且连接时所述桨毂的端部接触所述驱动件。
- 根据权利要求22所述的无人飞行器，其特征在于，所述拆桨辅助部包括至少一个与所述外部驱动件间隔一定距离的受力面，所述拆桨辅助部与拆桨工具配合时，拆桨工具抵持于所述受力面。
- 根据权利要求23所述的无人飞行器，其特征在于，所述拆桨辅助部为设置于所述桨毂一端的至少一个凹槽，所述凹槽包括正对外部驱动件的受力面；所述桨毂一端除所述凹槽以外的部分在所述连接部连接外部驱动件时抵持于外部驱动件，所述凹槽可供拆桨工具插入。
- 根据权利要求24所述的无人飞行器，其特征在于，所述凹槽成对设置，成对设置的两个所述凹槽沿所述螺旋桨的旋转中轴线对称设置。
- 根据权利要求25所述的无人飞行器，其特征在于，每对所述凹槽的受力面和其他成对的凹槽的受力面与外部驱动件之间具有不同的间距。
- 根据权利要求24所述的无人飞行器，其特征在于，所述受力面上设置有台阶结构，所述台阶结构形成多个受力面，每个受力面与外部驱动件之间具有不同的间距。
- 根据权利要求23所述的无人飞行器，其特征在于，所述拆桨辅助部为所述桨毂上靠近所述桨毂的端面设置的至少一个凹槽，或者为所述桨毂上靠近所述桨毂的端面设置的至少一个凸起；所述桨毂的端部在所述连接部连接外部驱动件时抵持于外部驱动件，所述凹槽、所述凸起与外部驱动结构之间的空间可供拆桨工具插入。
- 根据权利要求28所述的无人飞行器，其特征在于，所述凹槽或者所述凸起成对设置，成对设置的所述凹槽或者所述凸起沿所述螺旋桨的旋转中轴线对称设置。
- 根据权利要求29所述的无人飞行器，其特征在于，每对所述凹槽的受力面和其他成对的凹槽的受力面与外部驱动件之间具有不同的间距；或者，每对所述凸起的受力面和其他成对的凸起的受力面与外部驱动件之间具有不同的间距。
- 根据权利要求28所述的无人飞行器，其特征在于，所述凹槽或者所述凸起的受力面上设置有台阶结构，所述台阶结构形成多个受力面，每个受力面与外部驱动件之间具有不同的间距。
- 根据权利要求22至31任一项所述的无人飞行器，其特征在于，所述驱动件为电机，所述桨毂的端面的一部分与所述电机的电机座之间具有间隔。
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| CN110972472A (zh) | 2020-04-07 |
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