CN107839871B - Propeller connection structure and unmanned vehicles - Google Patents
Propeller connection structure and unmanned vehicles Download PDFInfo
- Publication number
- CN107839871B CN107839871B CN201711236709.1A CN201711236709A CN107839871B CN 107839871 B CN107839871 B CN 107839871B CN 201711236709 A CN201711236709 A CN 201711236709A CN 107839871 B CN107839871 B CN 107839871B
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- CN
- China
- Prior art keywords
- paddle
- assembly
- cavity
- propeller
- magnetic element
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000005192 partition Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 3
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/02—Hub construction
- B64C11/04—Blade mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
- B64D27/02—Aircraft characterised by the type or position of power plants
- B64D27/24—Aircraft characterised by the type or position of power plants using steam or spring force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D35/00—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Toys (AREA)
Abstract
The invention discloses a propeller connecting structure and an unmanned aerial vehicle. The connection structure includes: a paddle assembly including a paddle body and a first magnetic element disposed in a middle portion of the paddle body; and the transmission assembly comprises a second magnetic element and a motor cap which is used for being connected with the power output part of the motor body, the second magnetic element is arranged in the motor cap, and the second magnetic element and the first magnetic element are magnetically attracted so as to enable the paddle assembly to be connected with the transmission assembly, and the paddle assembly and the transmission assembly synchronously rotate. The connecting structure can realize quick disassembly and assembly of the paddle assembly and the transmission assembly.
Description
Technical Field
The present invention relates to a propeller connection structure and an unmanned aerial vehicle, and more particularly, to a propeller connection structure and an unmanned aerial vehicle.
Background
Unmanned aerial vehicles are becoming increasingly popular. Typically, the propeller of the unmanned aerial vehicle is fixed to the fuselage. Because of the large size of the propeller, this connection is inconvenient for the unmanned aerial vehicle to house.
Disclosure of Invention
An object of the present invention is to provide a new technical solution for a propeller connection structure.
According to a first aspect of the present invention, a propeller connection is provided. The connection structure includes: a paddle assembly including a paddle body and a first magnetic element disposed in a middle of the paddle body; and the transmission assembly comprises a second magnetic element and a motor cap which is used for being connected with the power output part of the motor body, the second magnetic element is arranged in the motor cap, and the second magnetic element and the first magnetic element are magnetically attracted so as to enable the paddle assembly to be connected with the transmission assembly, and the paddle assembly and the transmission assembly synchronously rotate.
Optionally, at least one of the first magnetic element and the second magnetic element is a permanent magnet.
Optionally, the paddle assembly further comprises a paddle seat connected with the middle part of the paddle body, the paddle seat having a cavity in which the first magnetic element is disposed.
Optionally, the motor cap has a boss, the second magnetic element is embedded in the boss, and the boss is inserted into the cavity.
Optionally, a raised rib position is arranged on the inner wall of the cavity, a groove is arranged on the boss, and the rib position is inserted into the groove during assembly so as to enable the paddle assembly and the transmission assembly to rotate synchronously; or alternatively
The inner wall of the cavity is provided with a groove, the boss is provided with a raised rib position, and when the assembly is carried out, the rib position is inserted into the groove, so that the paddle assembly and the transmission assembly synchronously rotate.
Optionally, the rib positions are multiple, the grooves are multiple, and the grooves correspond to the rib positions one by one.
Optionally, a partition plate is arranged in the cavity of the paddle seat, the partition plate divides the cavity into an upper cavity and a lower cavity, the upper end of the upper cavity is open so as to be convenient for installing the first magnetic element, the upper end face of the upper cavity is connected with the middle part of the paddle body, the lower cavity is used for accommodating the boss, and the lower end of the lower cavity is open so as to be convenient for inserting the boss.
Optionally, the cross section of the boss is elliptical, semicircular or polygonal, and the structure of the cavity is matched with that of the boss, so that the boss is inserted into the cavity, and the paddle assembly and the transmission assembly synchronously rotate.
Optionally, the paddle assembly further comprises a paddle cap, the middle part of the paddle body is provided with a through hole, the paddle cap is provided with a cap part and a protruding shaft protruding from the center of the cap part, the protruding shaft is inserted into the through hole, the paddle body is located between the cap part and the paddle seat, and the paddle cap, the paddle body and the paddle seat are connected in series and fixedly connected together through screws.
According to another embodiment of the present invention, an unmanned aerial vehicle is provided. The unmanned aerial vehicle comprises a motor body and the propeller connecting structure provided by the invention, and the motor cap is arranged at a power output part of the motor body.
According to one embodiment of the present disclosure, the removal and attachment of the paddle assembly and the transmission assembly is accomplished by the interaction of the first magnetic element and the second magnetic element.
When the device is used, a user only needs to approach the paddle assembly to the transmission assembly, and the rapid connection between the paddle assembly and the transmission assembly is realized through the magnetic attraction of the first magnetic element and the second magnetic element. When in storage, a user overcomes the attractive force of the two magnetic elements and directly pulls out the paddle assembly so as to separate the paddle assembly from the transmission assembly.
The propeller connecting structure is easy and quick to disassemble and assemble. .
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is an exploded view of a propeller connection structure according to one embodiment of the present invention.
Fig. 2-3 are cross-sectional views of a propeller connection structure according to one embodiment of the present invention.
Fig. 4-5 are schematic structural views of a paddle seat according to an embodiment of the invention.
Fig. 6 to 7 are schematic structural views of a motor cap according to an embodiment of the present invention.
Reference numerals illustrate:
10: a paddle cap; 11: a protruding shaft; 20: a blade body; 21: a through hole; 30: a first magnet; 40: a paddle seat; 41: an upper cavity; 42: a lower cavity; 43: a rib position; 46: a partition plate; 50: a screw; 70: a motor cap; 71: a boss; 72: a groove; 73: a receiving chamber; 80: a second magnet; 90: a motor body.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
According to an embodiment of the present invention, there is provided a propeller connection structure. As shown in fig. 1 to 3, the connection structure includes: a paddle assembly and a drive assembly.
The paddle assembly includes a paddle body 20 and a first magnetic element. The first magnetic element is disposed in the middle of the paddle body 20. For example, one skilled in the art may set the number of blades in blade body 20 according to actual needs. The plurality of paddles are connected together at a central portion of the paddle body 20. The first magnetic element is disposed in the middle of the paddle body 20. The first magnetic element is fixed to the middle of the blade body 20, for example, by clamping, bonding, bolting, or the like.
For example, the first magnetic element is a permanent magnet or an electromagnetic element. For example, the permanent magnets are ferrite magnets, neodymium-iron-boron magnets, or the like. The electromagnetic element is an element that generates a magnetic field using the principle of electro-magnetism generation. For ease of illustration, the first magnetic element is a first magnet 30.
The drive assembly is used to connect the paddle assembly with the motor body 90. The transmission assembly includes a second magnetic element and a motor cap 70 for connection with the power take off of the motor body 90. The second magnetic element is disposed in the motor cap 70. The second magnetic element is magnetically attracted to the first magnetic element to couple the paddle assembly and the drive assembly together. The paddle assembly rotates in synchronization with the drive assembly.
For example, the power output portion is an output shaft of the motor body 90. The motor cap 70 is fixed to the output shaft by screws. The second magnetic element is a permanent magnet or an electromagnetic element. For example, the permanent magnets are ferrite magnets, neodymium-iron-boron magnets, or the like. The electromagnetic element is an element that generates a magnetic field using the principle of electro-magnetism generation. For ease of illustration, in this example, the second magnetic element is a second magnet 80.
It will be appreciated by those skilled in the art that the attractive force between the first magnetic element and the second magnetic element is greater than the force that would need to be overcome when the unmanned aerial vehicle is in flight.
In an embodiment of the invention, the detachment and attachment of the paddle assembly and the transmission assembly is achieved by the interaction of the first magnetic element and the second magnetic element.
When the device is used, a user only needs to approach the paddle assembly to the transmission assembly, and the rapid connection between the paddle assembly and the transmission assembly is realized through the magnetic attraction of the first magnetic element and the second magnetic element. When in storage, a user overcomes the attractive force of the two magnetic elements and directly pulls out the paddle assembly so as to separate the paddle assembly from the transmission assembly.
The propeller connecting structure is easy and quick to disassemble and assemble.
In one example, as shown in FIGS. 1-3, the paddle assembly further includes a paddle seat 40. The paddle mount 40 is connected to the middle of the paddle body 20. The hub 40 is secured to the middle of the blade body 20, for example, by bonding, clamping or bolting. The paddle mount 40 has a cavity. A first magnetic element (e.g., first magnet 30) is disposed in the cavity. For example, the interior of the paddle seat 40 has a cavity that is open at one end. When installed, the first magnet 30 is placed into the cavity from the open end. In this way, the mounting and dismounting of the first magnetic element is facilitated.
In one example, as shown in fig. 2, 3, 6, and 7, the motor cap 70 has a boss 71. The second magnetic element is embedded in the boss 71. The boss 71 is inserted into the cavity. For example, the boss 71 has an accommodating chamber 73 inside. The lower end of the accommodation chamber 73 is open. In mounting, first, the second magnet 80 is inserted into the accommodating chamber 73; then, the motor cap 70 is fixed to the rotation shaft.
The arrangement of the boss 71 facilitates the connection of the paddle assembly and the transmission assembly, and the boss 71 plays a role in positioning, so that the installation accuracy of the paddle assembly and the transmission assembly is improved.
In addition, the insertion of the boss 71 into the cavity prevents the propeller assembly from moving laterally relative to the motor cap 70, thereby improving the reliability of the propeller connection.
In one example, as shown in fig. 5, raised ribs 43 are provided on the inner wall of the cavity. As shown in fig. 6, a groove 72 is provided on the boss 71. During assembly, the ribs 43 are inserted into the grooves 72 to synchronize rotation of the paddle assembly with the drive assembly. The rib position 43 and the groove 72 can play a good limiting role, and can effectively prevent the paddle assembly from moving circumferentially relative to the transmission assembly, so that the paddle assembly and the transmission assembly rotate synchronously.
For example, as shown in fig. 2, 4, 5, a diaphragm 46 is provided in the cavity of the paddle seat 40. The partition 46 divides the cavity into an upper cavity 41 and a lower cavity 42. The upper end of the upper cavity 41 is opened to facilitate the installation of the first magnetic element (e.g., the first magnet 30). The upper end surface of the upper cavity 41 is connected with the middle part of the blade body 20. The lower cavity 42 is adapted to receive the boss 71. The lower end of the lower cavity 42 is opened to facilitate insertion of the boss 71. A rib 43 is provided on the cavity wall of the lower cavity 42. A groove 72 is provided on the boss 71. In this manner, the first magnet 30 is effectively protected by the spacer 46, thereby preventing the first magnet 30 from being damaged during repeated disassembly and assembly of the paddle assembly.
In one example. A groove 72 is provided in the inner wall of the cavity, a raised rib 43 is provided on the boss 71, and during assembly, the rib 43 is inserted into the groove 72 to allow the paddle assembly to rotate in unison with the drive assembly.
For example, a diaphragm 46 is provided in the cavity of the paddle seat 40. The partition 46 divides the cavity into an upper cavity 41 and a lower cavity 42. The upper end of the upper cavity 41 is opened to facilitate the installation of the first magnetic element (e.g., the first magnet 30). The upper end surface of the upper cavity 41 is connected with the middle part of the blade body 20. The lower cavity 42 is adapted to receive the boss 71. The lower end of the lower cavity 42 is opened to facilitate insertion of the boss 71. A recess 72 is provided in the cavity wall of the lower cavity 42. The boss 71 is provided with a rib 43. In this manner, the first magnet 30 is effectively protected by the spacer 46, thereby preventing the first magnet 30 from being damaged during repeated disassembly and assembly of the paddle assembly.
Preferably, the rib positions 43 are multiple, the grooves 72 are multiple, and the grooves 72 are in one-to-one correspondence with the rib positions 43. Therefore, the relative rotation of the paddle component and the transmission component can be effectively avoided, and the synchronous rotation of the paddle component and the transmission component is ensured.
In one example, the cross-section of the boss 71 is elliptical, semi-circular, or polygonal, and the configuration of the cavity matches that of the boss 71 so that the boss 71 is inserted into the cavity and the paddle assembly rotates in unison with the drive assembly. By matching it is meant that the boss 71 is at least partially complementary to the structure of the cavity so that the boss 71 can be inserted into the cavity and the two can interfere with each other to prevent relative rotation.
The structures of the boss 71 and the cavity are not limited to the above-described embodiments, and may be set as desired by those skilled in the art.
In general, the stress experienced in the middle of the blade body 20 is relatively high and is prone to fracture, especially at high speeds or under high loads. In one example, the paddle assembly further includes a paddle cap 10. The middle part of the blade body 20 has a through hole 21. The paddle cap 10 has a cap portion and a protruding shaft 11 protruding from the center of the cap portion. The protruding shaft 11 is inserted into the through hole 21. Blade body 20 is located between the cap and the paddle seat 40. The cap 10, blade body 20 and socket 40 are connected in series and fixedly connected together by screws 50.
In this way, the blade body 20 is sandwiched between the cap 10 and the socket 40. The hub 40 and the cap 10 protect the middle of the blade body 20. The paddle seat 40 and the paddle cap 10 improve the structural strength of the paddle body 20, and can effectively prevent the paddle body 20 from breaking.
According to another embodiment of the present invention, an unmanned aerial vehicle is provided. The unmanned aerial vehicle comprises a motor body and the propeller connecting structure. The motor cap 70 is provided on a power output portion, for example, an output shaft, of the motor body 90.
The unmanned aerial vehicle has the characteristics of convenience and rapidness in storage.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (6)
1. A propeller attachment structure, comprising:
a paddle assembly including a paddle body and a first magnetic element disposed in a middle of the paddle body; and
the transmission assembly comprises a second magnetic element and a motor cap used for being connected with a power output part of the motor body, the second magnetic element is arranged in the motor cap, the second magnetic element and the first magnetic element are magnetically attracted, so that the paddle assembly and the transmission assembly are connected together, and the paddle assembly and the transmission assembly synchronously rotate;
the motor cap is provided with a boss, the second magnetic element is embedded into the boss, the paddle assembly further comprises a paddle seat, the paddle seat is connected with the middle part of the paddle body, the paddle seat is provided with a cavity, and the first magnetic element is arranged in the cavity; the inner wall of the cavity is provided with a raised rib position, the boss is provided with a groove, and when the assembly is carried out, the rib position is inserted into the groove so as to enable the paddle assembly and the transmission assembly to synchronously rotate; or alternatively
The inner wall of the cavity is provided with a groove, the boss is provided with a raised rib position, and when the assembly is carried out, the rib position is inserted into the groove so as to enable the paddle assembly and the transmission assembly to synchronously rotate;
the first magnetic element is an electromagnetic element; the second magnetic element is an electromagnetic element.
2. The propeller attachment structure of claim 1, wherein the rib locations are plural, the grooves are plural, and the grooves are in one-to-one correspondence with the rib locations.
3. The propeller connection structure of claim 1, wherein a partition plate is provided in the cavity of the paddle seat, the partition plate dividing the cavity into an upper cavity and a lower cavity, an upper end of the upper cavity being open for mounting the first magnetic element, an upper end face of the upper cavity being connected with a middle portion of the paddle body, the lower cavity being for accommodating the boss, a lower end of the lower cavity being open for insertion of the boss.
4. The propeller connection of claim 1, wherein the boss has an oval, semi-circular or polygonal cross-section, and the cavity is configured to mate with the boss to allow the boss to be inserted into the cavity and the propeller assembly to rotate in unison with the drive assembly.
5. The propeller connection structure of claim 1, wherein the propeller assembly further comprises a propeller cap having a through hole in a middle portion thereof, the propeller cap having a cap portion and a protruding shaft protruding from a center of the cap portion, the protruding shaft being inserted into the through hole, the propeller body being located between the cap portion and the propeller base, and the propeller cap, the propeller body and the propeller base being connected in series and fixedly connected together by screws.
6. An unmanned aerial vehicle comprising a motor body and the propeller connection structure according to any one of claims 1 to 5, the motor cap being provided at a power output portion of the motor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236709.1A CN107839871B (en) | 2017-11-30 | 2017-11-30 | Propeller connection structure and unmanned vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236709.1A CN107839871B (en) | 2017-11-30 | 2017-11-30 | Propeller connection structure and unmanned vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107839871A CN107839871A (en) | 2018-03-27 |
| CN107839871B true CN107839871B (en) | 2023-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711236709.1A Active CN107839871B (en) | 2017-11-30 | 2017-11-30 | Propeller connection structure and unmanned vehicles |
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| Country | Link |
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| CN (1) | CN107839871B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109677596B (en) * | 2019-01-29 | 2021-09-28 | 深圳市律远汇智科技有限公司 | Unmanned aerial vehicle device convenient to paddle is changed |
| CN111683874A (en) * | 2019-04-29 | 2020-09-18 | 深圳市大疆创新科技有限公司 | Quick detach coupling assembling, screw, power device, power component and unmanned aerial vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104651A (en) * | 2011-11-11 | 2013-05-15 | 贝尔直升机泰克斯特龙公司 | Vibration isolator |
| CN205615707U (en) * | 2016-02-25 | 2016-10-05 | 北京迈凯飞工程技术有限公司 | Oar ware and unmanned aerial vehicle are decided to screw |
| CN106976560A (en) * | 2017-05-08 | 2017-07-25 | 昊翔电能运动科技(昆山)有限公司 | A kind of unmanned plane motor cabinet, unmanned machine actuating device and unmanned plane |
| JP2017184504A (en) * | 2016-03-30 | 2017-10-05 | 並木精密宝石株式会社 | Motor unit for flying device and flying device |
| CN207644625U (en) * | 2017-11-30 | 2018-07-24 | 歌尔股份有限公司 | Propeller connection structure and unmanned vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10183744B2 (en) * | 2016-02-10 | 2019-01-22 | Lockheed Martin Corporation | Magnetic orientation detent |
-
2017
- 2017-11-30 CN CN201711236709.1A patent/CN107839871B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104651A (en) * | 2011-11-11 | 2013-05-15 | 贝尔直升机泰克斯特龙公司 | Vibration isolator |
| CN205615707U (en) * | 2016-02-25 | 2016-10-05 | 北京迈凯飞工程技术有限公司 | Oar ware and unmanned aerial vehicle are decided to screw |
| JP2017184504A (en) * | 2016-03-30 | 2017-10-05 | 並木精密宝石株式会社 | Motor unit for flying device and flying device |
| CN106976560A (en) * | 2017-05-08 | 2017-07-25 | 昊翔电能运动科技(昆山)有限公司 | A kind of unmanned plane motor cabinet, unmanned machine actuating device and unmanned plane |
| CN207644625U (en) * | 2017-11-30 | 2018-07-24 | 歌尔股份有限公司 | Propeller connection structure and unmanned vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107839871A (en) | 2018-03-27 |
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