WO2018196123A1 - Propeller, power system, and unmanned aerial vehicle - Google Patents

Propeller, power system, and unmanned aerial vehicle Download PDF

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Publication number
WO2018196123A1
WO2018196123A1 PCT/CN2017/088334 CN2017088334W WO2018196123A1 WO 2018196123 A1 WO2018196123 A1 WO 2018196123A1 CN 2017088334 W CN2017088334 W CN 2017088334W WO 2018196123 A1 WO2018196123 A1 WO 2018196123A1
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WO
WIPO (PCT)
Prior art keywords
propeller
foolproof
rib
driving device
blade seat
Prior art date
Application number
PCT/CN2017/088334
Other languages
French (fr)
Chinese (zh)
Inventor
陈鹏
邓涛
江彬
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 CN201780065071.1A priority Critical patent/CN109890699A/en
Publication of WO2018196123A1 publication Critical patent/WO2018196123A1/en

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/02—Hub construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors

Definitions

  • the invention relates to the field of aircraft, and in particular to a propeller, a power system and an unmanned aerial vehicle.
  • Propellers are often used as power propellers for aircraft or ships.
  • the propeller generally includes a paddle, a paddle mount on which the paddle is mounted, and a drive unit coupled to the paddle mount.
  • the driving device drives the paddle seat to rotate while driving the blades to rotate together.
  • the fixed connection manner of the blade seat and the driving device includes a manner of fixed connection or snap connection by screwing.
  • a typical multi-rotor UAV usually requires multiple propellers.
  • it usually includes four propellers, in which two propellers on the diagonal rotate in the same direction, and the adjacent two propellers rotate in opposite directions.
  • the adjacent two propellers it is necessary for the adjacent two propellers to have a distinction between the positive and negative propellers, thereby providing lift for the aircraft.
  • the shape of several propellers is generally the same. Therefore, when the user performs assembly, there will be a slight negligence, and there will be problems with the anti-propellers, which will affect the flight of the UAV, and more serious. It will cause the UAV to fall and be damaged.
  • the present invention provides a structure that is robust and can be driven in a predetermined direction with the drive.
  • a propeller for connecting to a driving device and capable of rotating under the driving of the driving device, the propeller comprising a blade seat and a blade connected to the blade seat, the blade seat comprising a plurality of buckles a plurality of the fastening portions for fasteningly connecting with the driving device, the blade holder further comprising at least one first foolproof portion corresponding to the fastening portion, the first foolproof portion The portion is abutted against the corresponding fastening portion for defining the blade seat to be coupled to the driving device in a predetermined direction.
  • first foolproof portion and the fastening portion are integrally formed.
  • the fastening portion includes a rib and a rib extending from the blade seat, and the rib is formed at an end of the rib.
  • the rib and the baffle are perpendicular to each other.
  • the rib is vertically connected to the blade seat, and the rib is disposed at an end of the rib and protrudes radially outward toward a rotation direction of the propeller.
  • the height of the rib is greater than the height of the first fool.
  • a center of the paddle seat is provided with a connecting hole for connecting the propeller and the driving device, and the first foolproof portion and a side of the rib facing the connecting hole are abutted Pick up.
  • the number of the first foolproof portions is the same as the number of the fastening portions, and the plurality of the fastening portions are in contact with the plurality of the foolproof portions in one-to-one correspondence.
  • the fastening portion is evenly disposed around the connecting hole.
  • the propeller is a folding paddle.
  • a power system including a driving device and a propeller as described above, the propeller passing The fastening portion is connected to the driving device.
  • the driving device is provided with a second foolproof portion that cooperates with the first foolproof portion, and when the propeller is not connected to the driving device in the predetermined direction, the first foolproofing The portion is docked with the second foolproof portion to prevent the propeller from being mounted on the driving device.
  • An unmanned aerial vehicle comprising a power system as described above.
  • the propeller in the power system of the embodiment of the present invention is buckled with the driving device in a snap manner.
  • the fastening portion of the propeller is disposed in contact with the first foolproof portion, so that the blade seat can be defined to be connected to the driving device in a predetermined direction; and the fastening portion and the first defense
  • the structure in which the stay is abutted is easy to shape and has a firm structure.
  • FIG. 1 is a schematic perspective view of a power system according to an embodiment of the present invention.
  • FIG. 2 is a schematic exploded view of the power system of FIG. 2.
  • FIG. 3 is a schematic exploded view of another angle of the power system of FIG. 3.
  • FIG. 4 is a perspective assembled view of the driving device of FIG. 1.
  • the present invention provides a power system 100 that includes a drive unit 10 and a propeller 20.
  • the driving device 10 is buckled with the propeller 20 by a snapping manner for driving the propeller 20 to rotate.
  • the driving device 10 includes a main body portion 12, an elastic abutting member 13 disposed on the main body portion 12, a locking portion 14 disposed on the main body portion 12, and a main body portion 12 and A drive shaft 15 that rotates relative to the main body portion 12.
  • the body portion 12 includes a bearing surface 120.
  • the bearing surface 120 is disposed adjacent to the propeller 20.
  • the main body portion 12 is cylindrical, and the drive shaft 15 protrudes from a central position of the main body portion 12.
  • a positioning hole 1200 is defined in the bearing surface 120.
  • the positioning hole 1200 is a plurality of discrete circular holes, and the circular holes are arranged in an annular array around the driving shaft.
  • the positioning hole 1200 is not limited to a circular shape, and may also be a square hole or a positioning groove.
  • the number and arrangement of the positioning holes 1200 may also be other manners. limited.
  • the positioning hole 1200 is spaced apart from the middle by a plurality of first mounting holes 1201, the positioning holes 1200 and a plurality of the first mounting holes 1201 is used to connect the locking portion 14.
  • the elastic resisting member 13 is sleeved on the driving shaft 15 .
  • the elastic resisting member 13 is an elastic member.
  • the elastic member is a spring.
  • the spring is directly sleeved on the drive shaft 15 . When the spring is compressed in one direction, it provides an elastic restoring force in the opposite direction.
  • the locking portion 14 is disposed on the top of the main body portion 12 . In other embodiments, the locking portion 14 can also be integrally formed with the main body portion 12.
  • the latching portion 14 is provided with at least one latching portion 140 for engaging with the propeller 20.
  • the latching portion 140 is a plurality of through holes, and the stepped block 146 is disposed in the through hole. Further, the step block 146 is disposed on one side of the through hole, and the height of the step block 146 is smaller than the depth of the through hole, so that the step block 146 blocks a part of the perforation without being blocked by the step block 146.
  • the perforated portion forms a set of inlets 26 that extend through the locking portion 14.
  • the locking portion 14 is substantially disc-shaped.
  • the shape of the locking portion 14 can be designed as needed, for example, elliptical, rectangular, square, or the like.
  • the locking portion 14 is provided with a through hole 1410 corresponding to the drive shaft 15 for the drive shaft 15 to pass through.
  • Each of the perforations extends in a circular arc shape with an axis of the through hole 1410 and is equidistant from the through hole 1410.
  • the locking portion 14 is provided with a plurality of second mounting holes 1411 corresponding to the plurality of the first mounting holes 1201 .
  • a plurality of the second mounting holes 1411 are in one-to-one correspondence with the plurality of first mounting holes 1201.
  • a positioning portion 144 is disposed on the locking portion 14 , and the positioning portion 144 is disposed on a surface of the locking portion 14 facing the main body portion 12 .
  • the positioning unit 144 A plurality of cylinders are formed protruding from the bottom of the locking portion 14, and the number and position of the cylinders coincide with the positioning holes 1200 on the main body portion 12.
  • the locking portion 14 is recessed toward a side of the main body portion 12 to form a receiving groove 145.
  • the receiving groove 145 is coaxial with the through hole 1401.
  • One end of the elastic resisting member 13 is received in the receiving groove 145 and is limited to the main body portion 12 .
  • the elastic resisting member 13 is sleeved on the driving shaft 15, and the locking portion 14 is placed on the bearing surface 120.
  • the driving shaft 15 is inserted through the lock.
  • the positioning portion 144 of the locking portion 14 faces the bearing surface 120 of the main body portion 12 , and the positioning portion 144 is received in the main body portion 12 .
  • a plurality of the second mounting holes 1411 are respectively aligned with the first mounting hole 1201, and finally the locking portion 14 is fixed to the main body portion 12 by a fastener.
  • the propeller 20 includes a paddle holder 21 and two or more blades 22 coupled to the paddle holder 21.
  • the paddle seat 21 is detachably disposed on the locking portion 14.
  • One side of the paddle seat facing the drive bearing surface 120 is a connecting surface 211.
  • the connecting surface 211 of the paddle seat 21 is disposed opposite to the bearing surface 120.
  • a connecting hole 2311 is defined in the connecting surface 211 for receiving the driving shaft 15 .
  • the fastening portion 230 includes a rib 231 and a rib 232.
  • the rib 231 is formed to extend perpendicularly from the connecting surface 211 of the blade holder 21, and the rib 232 is formed on the The end of the rib 231 protrudes in a direction away from the connecting hole 2311.
  • the crosspiece 232 and the rib 231 are perpendicular to each other.
  • the fastening portion 230 is evenly disposed around the connecting hole 2311.
  • the number of the ribs 231 is three, and the three ribs 231 are arranged in an annular array around the connecting holes 2311. It is understood that, in other embodiments, the The number of ribs 231 may also be one, two, four, and the like.
  • a first foolproof portion 251 is further formed between each of the ribs 231 and the connecting hole 2311. Specifically, the first foolproof portion 251 is disposed on the connecting surface 211 of the blade holder 21 and is disposed to abut one side of the connecting hole 2311.
  • the number of the first foolproof portions 251 may be the same as the number of the ribs 231, and the first foolproof portion 251 is disposed in one-to-one correspondence with the ribs 231; the first foolproof portion 251
  • the number of the first foolproof portions 251 abutting one of the ribs 231 facing the connecting hole 2311 is set to be one when the number of the first foolproof portions 251 is one.
  • the purpose of the foolproof can also be achieved, which is not limited by the present invention.
  • the first foolproof portion 251 has a substantially rectangular parallelepiped shape, the number of the first foolproof portions 251 is three, and the three first foolproof portions 251 and the three ribs 231 one-to-one correspondence. In other words, the three first foolproof portions 251 are respectively abutted on one surface of the corresponding rib 231 facing the connecting hole 2311. In the present embodiment, the rib 231 and the first foolproof portion 251 corresponding to the rib 231 are integrally formed.
  • the design of the first foolproof portion 251 abutting against the rib 231 is not only easy to shape, but the abutment of the first foolproof portion 251 against the rib 231 can enhance the joint strength of the rib 231;
  • the first foolproof portion 251 can be used to define the blade seat 21 along the predetermined direction with the driving device 10
  • the first foolproof portion 251 is connected to the blade holder 11 and is identical to the extending direction of the rib 231.
  • the locking portion 14 is further formed with a second foolproof portion 252, and the second foolproof portion 252 extends opposite to the first foolproof portion 251, and the heights of the two are equal and mutually matched to prevent Staying effect.
  • the first foolproof portion 251 and the second foolproof portion 252 function as a foolproof.
  • the first foolproof portion 251 and the second foolproof portion 252 can be offset from each other such that the propeller 20 is engaged with the lock
  • the portion 14 can be mounted; when the propeller 20 is coupled to the locking portion 14 in the wrong direction or angle, the first foolproof portion 251 and the second foolproof portion 252 can be docked with each other, thereby increasing
  • the installation distance between the propeller 20 and the locking portion 14 is such that the two cannot be connected, that is, the propeller 20 is prevented from being mounted on the driving device 10.
  • the first foolproof portion 251 and the second foolproof portion 252 cooperate to restrict the blade seat from being coupled to the drive device in a direction other than the predetermined direction.
  • the fastening portion 230 may be disposed on the bearing surface 120 of the main body portion 12, and the corresponding first anti-slipping portion 251 is also disposed on the bearing surface 120 at the same time.
  • the fastening portion 230 is abutted. Thereby, the propeller 20 and the driving device 10 can be fastened in a predetermined direction.
  • the locking portion 14 is connected to the connecting surface 211 of the blade holder 21, thereby achieving the locking and fixing of the propeller 20 and the driving device 10. It can be understood that the locking portion 14 and the blade holder 21 are integrally formed at this time.
  • the drive shaft 15 When assembling, the drive shaft 15 is first assembled into the connecting hole 2311 by an interference fit, and the concentricity and the vertical between the propeller 20 and the driving device 10 are predetermined. Straightness, the rib 232 of the paddle seat 21 extends into the set of inlets 26 through the latching portion 140 of the locking portion 14, and then, the blade seat 21 of the propeller 20 is depressed, The elastic resisting member 13 is deformed by the connecting hole 2311, and the propeller 20 is rotated in a predetermined direction, that is, in the grouping direction, so that the bar 232 is assembled under the step block 146 of the locking portion 14.
  • the elastic resisting member 13 elastically resists the blade seat 21, and the elastic resisting member 13 acts as an elastic force, and each of the brace 232 is correspondingly held by the retaining member.
  • the propeller 20 is in a locked state.
  • the blade holder 21 When the propeller 20 needs to be detached from the driving device 10, the blade holder 21 is depressed, and the elastic abutting member 13 is pressed down by the blade holder 21 to make the dam 232 leaves the step block 146 and rotates the propeller 20 in a direction opposite to the grouping direction. At this time, the propeller 20 is in an unlocked state, and the bar 232 is detached from the step block 146 side. A baffle 232 is retracted into the set of inlets 26 to effect separation of the propeller 20 from the drive unit 10.
  • the present invention also provides an unmanned aerial vehicle including the power system 100.

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Abstract

A propeller (20), a power system (100) comprising the propeller (20), and an unmanned aerial vehicle comprising the power system (100). The propeller (20) is configured to be connected to a drive device (10) and can be driven by the drive device (10) to rotate; the propeller (20) comprises a blade base (21) and blades (22) connected to the blade base (21); the blade base (21) comprises a plurality of snap-in portions (230) which can be securely connected to the drive device (10) in a predetermined direction; the blade base (21) further comprises a first foolproof portion (251) provided corresponding to at least one snap-in portion (230); the first foolproof portion (251) abuts against the corresponding snap-in portion (230) and can prevent the blade base (21) from being connected to the drive device (10) along a direction other than the predetermined direction. The snap-in portion (230) and the first foolproof portion (251) of the propeller (20) abut against each other, such that the propeller (20) is only allowed to be connected to the drive device (10) in the predetermined direction; moreover, the structure of the snap-in portion (230) and the first foolproof portion (251) abutting against each other is easy to shape and process.

Description

螺旋桨、动力***及无人飞行器Propeller, power system and unmanned aerial vehicle 技术领域Technical field
本发明涉及飞行器领域，特别涉及一种螺旋桨、动力***和无人飞行器。The invention relates to the field of aircraft, and in particular to a propeller, a power system and an unmanned aerial vehicle.
背景技术Background technique
螺旋桨通常作为动力推进器用于飞行器或者轮船等装置。螺旋桨一般包括桨叶、桨叶座，桨叶安装在所述桨叶座上，同时一驱动装置与所述桨叶座连接。该驱动装置驱动所述桨叶座旋转，同时带动所述桨叶一同旋转。目前，桨叶座与驱动装置的固定连接方式包括螺纹紧配方式固定连接或者卡扣连接的方式。Propellers are often used as power propellers for aircraft or ships. The propeller generally includes a paddle, a paddle mount on which the paddle is mounted, and a drive unit coupled to the paddle mount. The driving device drives the paddle seat to rotate while driving the blades to rotate together. At present, the fixed connection manner of the blade seat and the driving device includes a manner of fixed connection or snap connection by screwing.
然而一般的多旋翼无人飞行器通常需要配备多个螺旋桨，以精灵系列为例，通常包括四个螺旋桨，其中位于对角线的两个螺旋桨的转动方向相同，相邻两个螺旋桨的转动方向相反，此时，就需要相邻两个螺旋桨具有正反桨的区分，从而为飞行器提供升力。而为了满足飞行器整体外形的美观，几个螺旋桨的外形一般基本相同，因此当用户进行装配时，稍有疏忽就会出现正反桨装反的问题，从而影响无人飞行器的飞行，更严重的会导致无人飞行器的摔落、损毁。However, a typical multi-rotor UAV usually requires multiple propellers. For example, in the Elf series, it usually includes four propellers, in which two propellers on the diagonal rotate in the same direction, and the adjacent two propellers rotate in opposite directions. At this time, it is necessary for the adjacent two propellers to have a distinction between the positive and negative propellers, thereby providing lift for the aircraft. In order to meet the overall appearance of the aircraft, the shape of several propellers is generally the same. Therefore, when the user performs assembly, there will be a slight negligence, and there will be problems with the anti-propellers, which will affect the flight of the UAV, and more serious. It will cause the UAV to fall and be damaged.
发明内容Summary of the invention
有鉴于此，本发明提供一种结构牢固且能沿预定方向与所述驱动装 置卡扣连接的螺旋桨，以及具有该螺旋桨的动力***和无人飞行器。In view of the above, the present invention provides a structure that is robust and can be driven in a predetermined direction with the drive. A pinned-connected propeller, and a power system and an unmanned aerial vehicle having the propeller.
一种螺旋桨，用于与驱动装置连接并能在所述驱动装置的带动下转动，所述螺旋桨包括桨叶座和连接于所述桨叶座的桨叶，所述桨叶座包括多个扣合部，多个所述扣合部用于与所述驱动装置紧固连接，所述桨叶座还包括至少一个对应所述扣合部设置的第一防呆部，所述第一防呆部与对应的所述扣合部抵接设置用于限定所述桨叶座沿预定方向与所述驱动装置连接。a propeller for connecting to a driving device and capable of rotating under the driving of the driving device, the propeller comprising a blade seat and a blade connected to the blade seat, the blade seat comprising a plurality of buckles a plurality of the fastening portions for fasteningly connecting with the driving device, the blade holder further comprising at least one first foolproof portion corresponding to the fastening portion, the first foolproof portion The portion is abutted against the corresponding fastening portion for defining the blade seat to be coupled to the driving device in a predetermined direction.
进一步地，所述第一防呆部与所述扣合部为一体成型结构。Further, the first foolproof portion and the fastening portion are integrally formed.
进一步地，所述扣合部包括肋条和挡条，所述肋条自所述桨叶座延伸而出，所述挡条形成于所述肋条的末端。Further, the fastening portion includes a rib and a rib extending from the blade seat, and the rib is formed at an end of the rib.
进一步地，所述肋条和所述挡条相互垂直。Further, the rib and the baffle are perpendicular to each other.
进一步地，所述肋条与所述桨叶座垂直连接，所述挡条设置于所述肋条的末端并朝向所述螺旋桨的旋转方向径向向外凸伸。Further, the rib is vertically connected to the blade seat, and the rib is disposed at an end of the rib and protrudes radially outward toward a rotation direction of the propeller.
进一步地，所述肋条的高度大于所述第一防呆部的高度。Further, the height of the rib is greater than the height of the first fool.
进一步地，所述桨叶座中心开设有连接孔，所述连接孔用于连接所述螺旋桨与所述驱动装置，所述第一防呆部与所述肋条朝向所述连接孔方向的一面抵接。Further, a center of the paddle seat is provided with a connecting hole for connecting the propeller and the driving device, and the first foolproof portion and a side of the rib facing the connecting hole are abutted Pick up.
进一步地，所述第一防呆部的数量与所述扣合部的数量相同，多个所述扣合部与多个所述防呆部一一对应抵接设置。Further, the number of the first foolproof portions is the same as the number of the fastening portions, and the plurality of the fastening portions are in contact with the plurality of the foolproof portions in one-to-one correspondence.
进一步地，所述扣合部环绕所述连接孔均匀设置。Further, the fastening portion is evenly disposed around the connecting hole.
进一步地，所述螺旋桨为折叠桨。Further, the propeller is a folding paddle.
一种动力***，包括驱动装置和如上所述的螺旋桨，所述螺旋桨通 过所述扣合部与所述驱动装置连接。A power system including a driving device and a propeller as described above, the propeller passing The fastening portion is connected to the driving device.
进一步地，所述驱动装置上设有与所述第一防呆部配合的第二防呆部，当所述螺旋桨未沿所述预定方向与所述驱动装置连接时，所述第一防呆部和所述第二防呆部对接，从而阻止所述螺旋桨装设于所述驱动装置上。Further, the driving device is provided with a second foolproof portion that cooperates with the first foolproof portion, and when the propeller is not connected to the driving device in the predetermined direction, the first foolproofing The portion is docked with the second foolproof portion to prevent the propeller from being mounted on the driving device.
一种无人飞行器，所述无人飞行器包括如上所述的动力***。An unmanned aerial vehicle comprising a power system as described above.
相对于现有技术，本发明实施方式的动力***中的螺旋桨与所述驱动装置采用卡扣方式卡扣连接。其中所述螺旋桨的扣合部与所述第一防呆部抵接设置，从而可以限定所述桨叶座沿预定方向与所述驱动装置连接；另外所述扣合部与所述第一防呆部抵接设置的结构易于成型加工，并且结构牢固。Compared with the prior art, the propeller in the power system of the embodiment of the present invention is buckled with the driving device in a snap manner. Wherein the fastening portion of the propeller is disposed in contact with the first foolproof portion, so that the blade seat can be defined to be connected to the driving device in a predetermined direction; and the fastening portion and the first defense The structure in which the stay is abutted is easy to shape and has a firm structure.
附图说明DRAWINGS
图1为本发明实施方式提供的动力***的立体组装示意图。FIG. 1 is a schematic perspective view of a power system according to an embodiment of the present invention.
图2为图2中的动力***的立体拆分示意图。2 is a schematic exploded view of the power system of FIG. 2.
图3为图3中的动力***的另一角度的拆分示意图。3 is a schematic exploded view of another angle of the power system of FIG. 3.
图4为图1中的驱动装置的立体组装示意图。4 is a perspective assembled view of the driving device of FIG. 1.
主要元件符号说明Main component symbol description
动力***  100 Power system 100
驱动装置  10 Drive unit 10
主体部  12 Main body 12
承载面  120 Bearing surface 120
定位孔  1200 Positioning hole 1200
第一安装孔  1201 First mounting hole 1201
弹性抵持件  13 Elastic abutment 13
锁接部  14Locking part 14
卡扣部  140Buckle 140
连接板  141Connecting plate 141
贯穿孔  1410Through hole 1410
第二安装孔  1411 Second mounting hole 1411
定位部  144 Positioning unit 144
收容槽  145 Storage slot 145
阶梯块  146 Step block 146
驱动轴  15 Drive shaft 15
螺旋桨  20 Propeller 20
桨叶座  21 Blade seat 21
连接面  211 Connection surface 211
桨叶  22 Paddle 22
收容孔  23Receiving hole 23
扣合部  230Fastening part 230
肋条  231 Rib 231
挡条  232 Bar 232
连接柱  2310Connecting column 2310
连接孔  2311 Connection hole 2311
防呆部  25Defence section 25
第一防呆部  251First foolproof section 251
第二防呆部  252Second foolproof section 252
组入口  26 Group entrance 26
如下具体实施方式将结合上述附图进一步说明本发明。The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.
具体实施方式detailed description
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
以下结合具体实施方式对本发明的实现进行详细的描述。The implementation of the present invention is described in detail below in conjunction with the specific embodiments.
请一并参阅图1至图4，本发明提供一种动力***100，其包括驱动装置10以及螺旋桨20。所述驱动装置10与所述螺旋桨20通过卡扣方式卡扣连接，用于驱动所述螺旋桨20转动。Referring to FIGS. 1 through 4 together, the present invention provides a power system 100 that includes a drive unit 10 and a propeller 20. The driving device 10 is buckled with the propeller 20 by a snapping manner for driving the propeller 20 to rotate.
所述驱动装置10包括主体部12、设置于所述主体部12上的弹性抵持件13、设置于所述主体部12上的锁接部14、以及设置于所述主体部12上且可相对所述主体部12转动的驱动轴15。The driving device 10 includes a main body portion 12, an elastic abutting member 13 disposed on the main body portion 12, a locking portion 14 disposed on the main body portion 12, and a main body portion 12 and A drive shaft 15 that rotates relative to the main body portion 12.
所述主体部12包括承载面120。所述承载面120靠近所述螺旋桨20设置。所述主体部12为圆柱形，所述驱动轴15凸出于所述主体部12的中心位置。所述承载面120上开设有定位孔1200。在本实施方式中，所述定位孔1200为若干个离散的圆孔，并且所述圆孔环绕所述驱动轴呈环形阵列排布。当然，可以理解，所述定位孔1200不限于圆形，其也可以为方形孔或者定位槽等；另外所述定位孔1200的个数以及排列方式也可以为其他方式，本发明对此不做限定。所述定位孔1200中间隔开设有多个第一安装孔1201，所述定位孔1200和多个所述第一安装孔 1201用于连接所述锁接部14。The body portion 12 includes a bearing surface 120. The bearing surface 120 is disposed adjacent to the propeller 20. The main body portion 12 is cylindrical, and the drive shaft 15 protrudes from a central position of the main body portion 12. A positioning hole 1200 is defined in the bearing surface 120. In this embodiment, the positioning hole 1200 is a plurality of discrete circular holes, and the circular holes are arranged in an annular array around the driving shaft. Of course, it can be understood that the positioning hole 1200 is not limited to a circular shape, and may also be a square hole or a positioning groove. The number and arrangement of the positioning holes 1200 may also be other manners. limited. The positioning hole 1200 is spaced apart from the middle by a plurality of first mounting holes 1201, the positioning holes 1200 and a plurality of the first mounting holes 1201 is used to connect the locking portion 14.
所述弹性抵持件13套设于所述驱动轴15上。所述弹性抵持件13为弹性元件，在本实施方式中，所述弹性元件为弹簧。所述弹簧直接套设于所述驱动轴15上。当所述弹簧沿一个方向被压缩时，其提供一个相反方向的弹性恢复力。The elastic resisting member 13 is sleeved on the driving shaft 15 . The elastic resisting member 13 is an elastic member. In the embodiment, the elastic member is a spring. The spring is directly sleeved on the drive shaft 15 . When the spring is compressed in one direction, it provides an elastic restoring force in the opposite direction.
所述锁接部14设置于所述主体部12顶部。在其他的实施方式中，所述锁接部14还可以与所述主体部12为一体成型结构。所述锁接部14上设有至少一个用于与所述螺旋桨20相卡接的卡扣部140。所述卡扣部140为若干穿孔，所述穿孔内设有阶梯块146。进一步的，所述阶梯块146设置于所述穿孔的一侧，所述阶梯块146的高度小于所述穿孔的深度，从而所述阶梯块146遮挡一部分穿孔，而未被所述阶梯块146遮挡的穿孔部分形成贯穿所述锁接部14的组入口26。所述锁接部14大致为圆盘形，当然，在其他实施方式中，所述锁接部14的形状可以根据需要进行设计，例如可以为椭圆形、矩形、正方形等。所述锁接部14对应所述驱动轴15位置开设有贯穿孔1410，用于所述驱动轴15穿过。每一个所述穿孔以所述贯穿孔1410的轴线为旋转中心弧形延伸，并且距离所述贯穿孔1410的距离相等。The locking portion 14 is disposed on the top of the main body portion 12 . In other embodiments, the locking portion 14 can also be integrally formed with the main body portion 12. The latching portion 14 is provided with at least one latching portion 140 for engaging with the propeller 20. The latching portion 140 is a plurality of through holes, and the stepped block 146 is disposed in the through hole. Further, the step block 146 is disposed on one side of the through hole, and the height of the step block 146 is smaller than the depth of the through hole, so that the step block 146 blocks a part of the perforation without being blocked by the step block 146. The perforated portion forms a set of inlets 26 that extend through the locking portion 14. The locking portion 14 is substantially disc-shaped. Of course, in other embodiments, the shape of the locking portion 14 can be designed as needed, for example, elliptical, rectangular, square, or the like. The locking portion 14 is provided with a through hole 1410 corresponding to the drive shaft 15 for the drive shaft 15 to pass through. Each of the perforations extends in a circular arc shape with an axis of the through hole 1410 and is equidistant from the through hole 1410.
所述锁接部14对应多个所述第一安装孔1201位置设置有多个第二安装孔1411。多个所述第二安装孔1411与多个所述第一安装孔1201一一对应。The locking portion 14 is provided with a plurality of second mounting holes 1411 corresponding to the plurality of the first mounting holes 1201 . A plurality of the second mounting holes 1411 are in one-to-one correspondence with the plurality of first mounting holes 1201.
所述锁接部14上设有定位部144，所述定位部144设置于所述锁接部14面对所述主体部12的表面上。在本实施方式中，所述定位部144 为所述锁接部14的底部凸伸形成的若干圆柱，所述圆柱的数量和位置与所述主体部12上的定位孔1200一致。当所述锁接部14安装于所述主体部12上时，可通过所述若干圆柱容置于对应的定位孔1200中使所述锁接部14和所述主体部12预定位，以便于两者的固定连接。A positioning portion 144 is disposed on the locking portion 14 , and the positioning portion 144 is disposed on a surface of the locking portion 14 facing the main body portion 12 . In the embodiment, the positioning unit 144 A plurality of cylinders are formed protruding from the bottom of the locking portion 14, and the number and position of the cylinders coincide with the positioning holes 1200 on the main body portion 12. When the locking portion 14 is mounted on the main body portion 12, the locking portion 14 and the main body portion 12 can be pre-positioned by the plurality of cylinders being placed in the corresponding positioning holes 1200, so as to facilitate A fixed connection between the two.
所述锁接部14靠近所述主体部12的一侧凹陷形成收容槽145。所述收容槽145与所述贯穿孔1401同轴。所述弹性抵持件13的一端收容于所述收容槽145中并被限位于所述主体部12上。The locking portion 14 is recessed toward a side of the main body portion 12 to form a receiving groove 145. The receiving groove 145 is coaxial with the through hole 1401. One end of the elastic resisting member 13 is received in the receiving groove 145 and is limited to the main body portion 12 .
组装时，先将所述弹性抵持件13套设于所述驱动轴15上，再将所述锁接部14放置于所述承载面120上，所述驱动轴15穿设于所述锁接部14的贯穿孔1410内，所述锁接部14的所述定位部144面对所述主体部12的所述承载面120，保持所述定位部144容置于所述主体部12的定位孔1200中，将多个所述第二安装孔1411分别与所述第一安装孔1201一一相对正，最后通过紧固件将所述锁接部14固定于所述主体部12上。When the assembly is performed, the elastic resisting member 13 is sleeved on the driving shaft 15, and the locking portion 14 is placed on the bearing surface 120. The driving shaft 15 is inserted through the lock. In the through hole 1410 of the connecting portion 14 , the positioning portion 144 of the locking portion 14 faces the bearing surface 120 of the main body portion 12 , and the positioning portion 144 is received in the main body portion 12 . In the positioning hole 1200, a plurality of the second mounting holes 1411 are respectively aligned with the first mounting hole 1201, and finally the locking portion 14 is fixed to the main body portion 12 by a fastener.
所述螺旋桨20包括一桨叶座21和两个或两个以上连接于所述桨叶座21的桨叶22。所述桨叶座21可拆装地设置于所述锁接部14。所述桨叶座朝向所述驱动装置承载面120的一面为连接面211。换句话说，所述桨叶座21的连接面211与所述承载面120相对设置。所述连接面211上开设有连接孔2311，其用于***述驱动轴15。The propeller 20 includes a paddle holder 21 and two or more blades 22 coupled to the paddle holder 21. The paddle seat 21 is detachably disposed on the locking portion 14. One side of the paddle seat facing the drive bearing surface 120 is a connecting surface 211. In other words, the connecting surface 211 of the paddle seat 21 is disposed opposite to the bearing surface 120. A connecting hole 2311 is defined in the connecting surface 211 for receiving the driving shaft 15 .
本实施例中，所述连接面211上对应三个卡扣部140位置设有三个扣合部230。所述扣合部230包括肋条231和挡条232。所述肋条231自所述桨叶座21的连接面211垂直延伸形成，所述挡条232形成于所述 肋条231的末端并朝向远离所述连接孔2311的方向凸伸。所述挡条232和所述肋条231相互垂直。所述扣合部230环绕所述连接孔2311呈均匀设置。具体地，在本实施方式中，所述肋条231的数量为三个，所述三个肋条231环绕所述连接孔2311呈环形阵列排布，可以理解的，在其他的实施方式中，所述肋条231的数量还可以为一个、二个、四个等其他数量。In this embodiment, three fastening portions 230 are disposed on the connecting surface 211 corresponding to the three fastening portions 140. The fastening portion 230 includes a rib 231 and a rib 232. The rib 231 is formed to extend perpendicularly from the connecting surface 211 of the blade holder 21, and the rib 232 is formed on the The end of the rib 231 protrudes in a direction away from the connecting hole 2311. The crosspiece 232 and the rib 231 are perpendicular to each other. The fastening portion 230 is evenly disposed around the connecting hole 2311. Specifically, in the present embodiment, the number of the ribs 231 is three, and the three ribs 231 are arranged in an annular array around the connecting holes 2311. It is understood that, in other embodiments, the The number of ribs 231 may also be one, two, four, and the like.
每一所述肋条231与所述连接孔2311之间还形成有第一防呆部251。具体地，所述第一防呆部251设置于所述桨叶座21的连接面211上，并且抵接所述肋条231朝向所述连接孔2311的一面设置。所述第一防呆部251的个数可以与所述肋条231的个数相同，此时所述第一防呆部251与所述肋条231一一对应设置；所述第一防呆部251的个数至少为一个，此时所述第一防呆部251抵接其中一个所述肋条231朝向所述连接孔2311的一面设置，当所述第一防呆部251的个数为一个时也可以达到防呆的目的，本发明对此不做限定。在本实施方式中，所述第一防呆部251大致呈长方体型，所述第一防呆部251的个数为三个，所述三个第一防呆部251与所述三个肋条231一一对应设置。换句话说，所述三个第一防呆部251分别抵接设置于各自对应的所述肋条231朝向所述连接孔2311方向的一面。在本实施方式中，所述肋条231以及与所述肋条231对应的第一防呆部251为一体成型设置。所述第一防呆部251与所述肋条231抵接的设计不仅容易成型，而且所述第一防呆部251抵接所述肋条231设置可以增强所述肋条231的连接强度；另外，所述第一防呆部251可以用于限定所述桨叶座21沿预定方向与所述驱动装置10 连接所述第一防呆部251设置于所述桨叶座11上并与所述肋条231的延伸方向相同。进一步地，所述锁接部14上还形成有第二防呆部252，所述第二防呆部252与所述第一防呆部251相向延伸，两者的高度相等且互相配合达到防呆效果。具体地，当所述锁接部14与所述螺旋桨20相互锁接时，所述第一防呆部251和所述第二防呆部252起到防呆的作用。当所述螺旋桨20以正确的方向连接到所述锁接部14上时，所述第一防呆部251和所述第二防呆部252能够相互错开使所述螺旋桨20与所述锁接部14能够安装；当所述螺旋桨20以错误的方向或者角度连接到所述锁接部14上时，所述第一防呆部251和所述第二防呆部252能够相互对接，从而增加所述螺旋桨20与所述锁接部14之间的安装距离，从而使两者不能连接，即阻止所述螺旋桨20装设于所述驱动装置10上。换句话说，所述第一防呆部251和所述第二防呆部252配合从而限制所述桨叶座沿预定方向之外的方向与所述驱动装置连接。A first foolproof portion 251 is further formed between each of the ribs 231 and the connecting hole 2311. Specifically, the first foolproof portion 251 is disposed on the connecting surface 211 of the blade holder 21 and is disposed to abut one side of the connecting hole 2311. The number of the first foolproof portions 251 may be the same as the number of the ribs 231, and the first foolproof portion 251 is disposed in one-to-one correspondence with the ribs 231; the first foolproof portion 251 The number of the first foolproof portions 251 abutting one of the ribs 231 facing the connecting hole 2311 is set to be one when the number of the first foolproof portions 251 is one. The purpose of the foolproof can also be achieved, which is not limited by the present invention. In the present embodiment, the first foolproof portion 251 has a substantially rectangular parallelepiped shape, the number of the first foolproof portions 251 is three, and the three first foolproof portions 251 and the three ribs 231 one-to-one correspondence. In other words, the three first foolproof portions 251 are respectively abutted on one surface of the corresponding rib 231 facing the connecting hole 2311. In the present embodiment, the rib 231 and the first foolproof portion 251 corresponding to the rib 231 are integrally formed. The design of the first foolproof portion 251 abutting against the rib 231 is not only easy to shape, but the abutment of the first foolproof portion 251 against the rib 231 can enhance the joint strength of the rib 231; The first foolproof portion 251 can be used to define the blade seat 21 along the predetermined direction with the driving device 10 The first foolproof portion 251 is connected to the blade holder 11 and is identical to the extending direction of the rib 231. Further, the locking portion 14 is further formed with a second foolproof portion 252, and the second foolproof portion 252 extends opposite to the first foolproof portion 251, and the heights of the two are equal and mutually matched to prevent Staying effect. Specifically, when the locking portion 14 and the propeller 20 are locked to each other, the first foolproof portion 251 and the second foolproof portion 252 function as a foolproof. When the propeller 20 is coupled to the locking portion 14 in the correct direction, the first foolproof portion 251 and the second foolproof portion 252 can be offset from each other such that the propeller 20 is engaged with the lock The portion 14 can be mounted; when the propeller 20 is coupled to the locking portion 14 in the wrong direction or angle, the first foolproof portion 251 and the second foolproof portion 252 can be docked with each other, thereby increasing The installation distance between the propeller 20 and the locking portion 14 is such that the two cannot be connected, that is, the propeller 20 is prevented from being mounted on the driving device 10. In other words, the first foolproof portion 251 and the second foolproof portion 252 cooperate to restrict the blade seat from being coupled to the drive device in a direction other than the predetermined direction.
可选择地，所述扣合部230也可以设置于所述主体部12的承载面120上，对应的所述第一防呆部251此时同样设置于所述承载面120上，并与所述扣合部230抵接设置。从而可以使所述螺旋桨20和所述驱动装置10沿预定方向紧固连接。Alternatively, the fastening portion 230 may be disposed on the bearing surface 120 of the main body portion 12, and the corresponding first anti-slipping portion 251 is also disposed on the bearing surface 120 at the same time. The fastening portion 230 is abutted. Thereby, the propeller 20 and the driving device 10 can be fastened in a predetermined direction.
与之相对应的，此时所述锁接部14与所述桨叶座21的连接面211连接，从而实现所述螺旋桨20与所述驱动装置10的卡扣固定。可以理解，此时所述锁接部14与所述桨叶座21为一体成型设置。Correspondingly, at this time, the locking portion 14 is connected to the connecting surface 211 of the blade holder 21, thereby achieving the locking and fixing of the propeller 20 and the driving device 10. It can be understood that the locking portion 14 and the blade holder 21 are integrally formed at this time.
组装时，先将所述驱动轴15通过过盈配合的方式组装至所述连接孔2311内，先定所述螺旋桨20与所述驱动装置10之间的同心度与垂 直度，所述桨叶座21的挡条232通过所述锁接部14的所述卡扣部140伸入所述组入口26中，随后，下压所述螺旋桨20的桨叶座21，所述弹性抵持件13被所述连接孔2311下压变形，向预定方向即组入方向旋转所述螺旋桨20使所述挡条232组入于所述锁接部14的阶梯块146下。而解除下压所述螺旋桨20时，由于所述弹性抵持件13弹性抵持于所述桨叶座21，所述弹性抵持件13弹力的作用，每个挡条232对应卡持于所述阶梯块146上，所述螺旋桨20处于锁定状态。When assembling, the drive shaft 15 is first assembled into the connecting hole 2311 by an interference fit, and the concentricity and the vertical between the propeller 20 and the driving device 10 are predetermined. Straightness, the rib 232 of the paddle seat 21 extends into the set of inlets 26 through the latching portion 140 of the locking portion 14, and then, the blade seat 21 of the propeller 20 is depressed, The elastic resisting member 13 is deformed by the connecting hole 2311, and the propeller 20 is rotated in a predetermined direction, that is, in the grouping direction, so that the bar 232 is assembled under the step block 146 of the locking portion 14. When the propeller 20 is depressed, the elastic resisting member 13 elastically resists the blade seat 21, and the elastic resisting member 13 acts as an elastic force, and each of the brace 232 is correspondingly held by the retaining member. On the step block 146, the propeller 20 is in a locked state.
当需要将所述螺旋桨20从所述驱动装置10上拆下时，下压所述桨叶座21，所述弹性抵持件13被所述桨叶座21下压收缩，使所述挡条232离开所述阶梯块146，再向与组入方向相反的方向旋转所述螺旋桨20，此时，所述螺旋桨20处于解锁状态，所述挡条232从所述阶梯块146侧脱离，所述挡条232退入至所述组入口26，从而实现所述螺旋桨20与所述驱动装置10的分离。When the propeller 20 needs to be detached from the driving device 10, the blade holder 21 is depressed, and the elastic abutting member 13 is pressed down by the blade holder 21 to make the dam 232 leaves the step block 146 and rotates the propeller 20 in a direction opposite to the grouping direction. At this time, the propeller 20 is in an unlocked state, and the bar 232 is detached from the step block 146 side. A baffle 232 is retracted into the set of inlets 26 to effect separation of the propeller 20 from the drive unit 10.
另外，本发明还提供一种包括所述动力***100的无人飞行器。Additionally, the present invention also provides an unmanned aerial vehicle including the power system 100.
本技术领域的普通技术人员应当认识到，以上的实施方式仅是用来说明本发明，而并非用作为对本发明的限定，只要在本发明的实质精神范围之内，对以上实施例所作的适当改变和变化都落在本发明要求保护的范围之内。 It is to be understood by those skilled in the art that the above embodiments are only intended to illustrate the invention, and are not intended to limit the invention, as long as it is within the spirit of the invention Changes and modifications are intended to fall within the scope of the invention.

Claims (13)

  1. 一种螺旋桨，用于与驱动装置连接并能在所述驱动装置的带动下转动，所述螺旋桨包括桨叶座和连接于所述桨叶座的桨叶，其特征在于：所述桨叶座包括多个扣合部，多个所述扣合部用于与所述驱动装置紧固连接，所述桨叶座还包括至少一个对应所述扣合部设置的第一防呆部，所述第一防呆部与对应的所述扣合部抵接设置用于限定所述桨叶座沿预定方向与所述驱动装置连接。a propeller for connecting to a driving device and rotatable by the driving device, the propeller comprising a blade seat and a blade connected to the blade seat, characterized in that: the blade seat a plurality of fastening portions for fasteningly connecting with the driving device, the blade seat further comprising at least one first foolproof portion corresponding to the fastening portion, The first foolproof portion is abutted against the corresponding fastening portion for defining the blade seat to be coupled to the driving device in a predetermined direction.
  2. 如权利要求1所述的螺旋桨，其特征在于：所述第一防呆部与所述扣合部为一体成型结构。The propeller according to claim 1, wherein said first foolproof portion and said engaging portion are integrally formed.
  3. 如权利要求1所述的螺旋桨，其特征在于：所述扣合部包括肋条和挡条，所述肋条自所述桨叶座延伸而出，所述挡条形成于所述肋条的末端。A propeller according to claim 1, wherein said engaging portion includes a rib and a rib extending from said blade seat, said rib being formed at an end of said rib.
  4. 如权利要求3所述的螺旋桨，其特征在于，所述肋条和所述挡条相互垂直。The propeller of claim 3 wherein said ribs and said baffles are perpendicular to each other.
  5. 如权利要求4所述的螺旋桨，其特征在于：所述肋条与所述桨叶座垂直连接，所述挡条设置于所述肋条的末端并朝向所述螺旋桨的旋转方向径向向外凸伸。A propeller according to claim 4, wherein said rib is vertically connected to said blade seat, said dam being disposed at an end of said rib and projecting radially outward toward said rotation direction of said propeller .
  6. 如权利要求4所述的螺旋桨，其特征在于：所述肋条的高度大于所述第一防呆部的高度。A propeller according to claim 4, wherein said rib has a height greater than a height of said first fool.
  7. 如权利要求3所述的螺旋桨，其特征在于：所述桨叶座中心开设有连接孔，所述连接孔用于连接所述螺旋桨与所述驱动装置，所述第一防呆部与所述肋条朝向所述连接孔方向的一面抵接。 The propeller according to claim 3, wherein a center of the blade seat is provided with a connecting hole for connecting the propeller and the driving device, the first foolproof portion and the One side of the rib facing the connecting hole abuts.
  8. 如权利要求7所述的螺旋桨，其特征在于：所述第一防呆部的数量与所述扣合部的数量相同，多个所述扣合部与多个所述防呆部一一对应抵接设置。The propeller according to claim 7, wherein the number of the first foolproof portions is the same as the number of the engaging portions, and the plurality of the engaging portions correspond to the plurality of the foolproof portions. Abut the settings.
  9. 根据权利要求7所述的螺旋桨，其特征在于：所述扣合部环绕所述连接孔均匀设置。The propeller according to claim 7, wherein said engaging portion is evenly disposed around said connecting hole.
  10. 如权利要求1-9中任意一项所述的螺旋桨，其特征在于：所述螺旋桨为折叠桨。A propeller according to any one of claims 1 to 9, wherein the propeller is a folding paddle.
  11. 一种动力***，包括驱动装置和如权利要求1-10中任意一项所述的螺旋桨，所述螺旋桨通过所述扣合部与所述驱动装置连接。A power system comprising a drive device and a propeller according to any one of claims 1 to 10, the propeller being coupled to the drive device by the snap portion.
  12. 如权利要求11所述的动力***，其特征在于：所述驱动装置上设有与所述第一防呆部配合的第二防呆部，当所述螺旋桨未沿所述预定方向与所述驱动装置连接时，所述第一防呆部和所述第二防呆部对接，从而阻止所述螺旋桨装设于所述驱动装置上。A power system according to claim 11, wherein said driving means is provided with a second foolproof portion cooperating with said first foolproof portion, said said propeller being not said in said predetermined direction When the driving device is connected, the first foolproof portion and the second foolproof portion are butted to prevent the propeller from being mounted on the driving device.
  13. 一种无人飞行器，其特征在于：所述无人飞行器包括如权利要求11-12中任意一项所述的动力***。 An unmanned aerial vehicle, characterized in that the unmanned aerial vehicle comprises the power system according to any one of claims 11-12.
PCT/CN2017/088334 2017-04-25 2017-06-14 Propeller, power system, and unmanned aerial vehicle WO2018196123A1 (en)

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