CN105905292B - Screw mounting structure and unmanned aerial vehicle - Google Patents
Screw mounting structure and unmanned aerial vehicle Download PDFInfo
- Publication number
- CN105905292B CN105905292B CN201610286841.2A CN201610286841A CN105905292B CN 105905292 B CN105905292 B CN 105905292B CN 201610286841 A CN201610286841 A CN 201610286841A CN 105905292 B CN105905292 B CN 105905292B
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- connecting plate
- propeller
- sleeve
- mounting structure
- support
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- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/08—Helicopters with two or more rotors
- B64C27/10—Helicopters with two or more rotors arranged coaxially
-
- 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
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U30/00—Means for producing lift; Empennages; Arrangements thereof
- B64U30/20—Rotors; Rotor supports
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toys (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Discloses a screw mounting structure and unmanned aerial vehicle for solve the poor scheduling problem of structural strength of current screw mounting structure. The propeller is installed the structure comprises: arm the method comprises the steps of carrying out a first treatment on the surface of the; the support is arranged on the arm, comprises a hollow structure; the driving device is used for driving the driving device, the support is arranged on the support; and the propeller is driven by the driving device. According to the propeller mounting structure provided by the invention, the driving device and the propeller are connected with the horn through the support, and the support is provided with the hollow structure, so that the hollow structure can disperse stress, the structural strength is improved, the structural weight is reduced, and the structural strength, the flight reliability and the loading capacity of an aircraft adopting the mounting structure are further improved.
Description
Technical Field
The invention relates to the field of aircrafts, in particular to a propeller installation structure and an unmanned aerial vehicle with the same.
Background
The unmanned plane is a flying device in rapid development, has the advantages of flexible maneuvering, quick response, unmanned flying and low operation requirement, and can be widely applied to the fields of agriculture, exploration, photography, border patrol and the like.
Unmanned aerial vehicle generally includes fuselage, horn and installs the screw on the horn, and current screw mounting structure generally sets up connecting rod 12' at the tip of horn 11' as shown in fig. 1, and screw 14' installs on connecting rod 12', because the bending resistance of shaft-like structure self, torsional properties are relatively poor, therefore has intensity relatively poor through connecting rod 12' with the mode of screw 14' on horn 11', easily causes stress concentration's problem, influences unmanned aerial vehicle's flight reliability.
Disclosure of Invention
In view of this, the present invention provides a propeller mounting structure having high structural strength.
To achieve the purpose, the invention adopts the following technical scheme:
a propeller mounting structure comprising:
a horn;
the support is arranged on the horn and comprises a hollowed-out structure;
the driving device is arranged on the support;
and the propeller is driven by the driving device.
Preferably, the support is an integrally formed structure.
Preferably, the support is sleeved with the end part of the horn.
Preferably, the support comprises:
a sleeve sleeved with the horn;
a mounting table on which the driving device is mounted;
and the connecting structure is connected between the sleeve and the mounting table top.
Preferably, the connecting structure comprises at least one connecting plate, one end of the connecting plate is connected with the mounting table top, and the other end of the connecting plate is connected with the sleeve;
at least one connecting plate is provided with a hollow structure.
Preferably, the end of the connecting plate is connected to the sleeve via a connecting rib.
Preferably, the connecting structure comprises a first connecting plate and a second connecting plate which are symmetrically arranged at two sides of the sleeve;
the first connecting plate is inclined from one end connected with the sleeve to the other end and is close to the sleeve; and/or the number of the groups of groups,
the second connecting plate is inclined from one end of the second connecting plate connected with the sleeve to the other end of the second connecting plate, and the second connecting plate is inclined towards the direction approaching the sleeve.
Preferably, the connection structure further comprises at least one third connection plate located between the first connection plate and the second connection plate.
Preferably, at least one reinforcing plate is disposed between adjacent ones of the connection plates.
Preferably, the connection plate extends in an axial direction of the sleeve.
Preferably, the propeller comprises a rotating shaft capable of rotating under the drive of the driving device and a blade arranged on the rotating shaft;
the radius of the position where the blade is arranged on the rotating shaft is larger than the radius of the other positions.
Preferably, the rotating shaft comprises a first section and a second section connected with the first section, the radius of the first section is larger than that of the second section, and the paddle is arranged on the first section;
the outer peripheral surfaces of the first section and the second section are in transition through a smooth curved surface.
Preferably, the support is in an up-down symmetrical structure, and the driving device and the propeller are arranged at the upper end and the lower end of the support.
The invention also provides the unmanned aerial vehicle, and the propeller mounting structure is adopted to achieve the effect of improving the flight reliability.
To achieve the purpose, the invention adopts the following technical scheme:
an unmanned aerial vehicle comprising a propeller mounting structure as described above.
The beneficial effects of the invention are as follows:
according to the propeller mounting structure provided by the invention, the driving device and the propeller are connected with the horn through the support, and the support is provided with the hollow structure, so that the hollow structure can disperse stress, the structural strength is improved, the structural weight is reduced, and the structural strength, the flight reliability and the loading capacity of an aircraft adopting the mounting structure are further improved.
The unmanned aerial vehicle provided by the invention adopts the propeller mounting structure, and has the advantages of high structural strength, high flight reliability and strong loading capacity.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a prior art propeller mounting structure;
FIG. 2 is a schematic view of a propeller mounting structure provided in an embodiment of the present invention;
FIG. 3 is an exploded view of a propeller mounting structure provided in an embodiment of the present invention;
FIG. 4 is a front view of a propeller mounting structure provided by an embodiment of the present invention;
FIG. 5 is a schematic view of a mount in a propeller mounting structure provided in an embodiment of the present invention;
FIG. 6 is a schematic view of a propeller in a propeller mounting structure provided in an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention.
In the figure, 11', horn; 12', a connecting rod; 14', propellers;
1. a propeller mounting structure; 11. a horn; 12. a support; 121. a sleeve; 122. installing a table top; 123. a first connection plate; 124. second one a connecting plate; 125. a third connecting plate; 126. connecting ribs; 127. a rectangular hole; 128. a reinforcing plate; 13. a driving device; 14. a propeller; 141. a rotating shaft; 1411. a first section; 1412. a second section; 142. a paddle; 2. a fuselage.
Detailed Description
The present invention is described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. The present invention will be fully understood by those skilled in the art without the details described herein. Well-known methods, procedures, flows, and components have not been described in detail so as not to obscure the nature of the invention.
The invention provides a propeller installation structure, which comprises:
a horn;
the support is arranged on the horn and comprises a hollowed-out structure;
the driving device is arranged on the support;
the propeller is driven by the driving device.
According to the propeller mounting structure provided by the invention, the driving device and the propeller are connected with the horn through the support, and the support is provided with the hollow structure, so that the hollow structure can disperse stress, the structural strength is improved, the structural weight is reduced, and the structural strength, the flight reliability and the loading capacity of an aircraft adopting the mounting structure are further improved.
Embodiments of the propeller mounting structure and the unmanned aerial vehicle of the present invention are specifically described below with reference to fig. 2 to 7.
As shown in fig. 2 to 4, the propeller mounting structure includes a horn 11, a mount 12, a driving device 13, and a propeller 14. A hollowed-out structure is arranged on the support 12, the setting of hollow out construction can improve structural strength to reduce the whole weight of structure.
In a preferred embodiment, support 12 is of unitary construction, and unitary support 12 provides further structural strength.
In a preferred embodiment, the support 12 has an up-down symmetrical structure, and the driving device 13 and the propeller 14 are arranged at the upper end and the lower end of the support 12, so that the lift force and the sensitivity of adjusting the direction of the aircraft can be improved. Of course, the drive means 13 and the propeller 14 may be provided only at the upper or lower end of the support 12, and the structure of the support 12 may be changed accordingly.
In a preferred embodiment, the support 12 is sleeved with the end of the arm 11. Specifically, as shown in fig. 5, the support 12 includes a middle sleeve 121, mounting table tops 122 located on the upper and lower sides of the sleeve 121, and a connection structure connected between the sleeve 121 and the mounting table tops 122, where the hollow structure is disposed on the connection structure. The drive means 13 are mounted on a mounting table 122.
The connection structure includes at least one connection plate, one end of which is connected to the mounting table 122 and the other end of which is connected to the outer circumferential surface of the sleeve 121. At least one connecting plate is provided with a hollowed-out structure. The connection plate extends in the axial direction of the sleeve 121, i.e., the connection plate is parallel to the axial direction of the sleeve 121. In a preferred embodiment, the upper half of the connection structure is identical to the lower half of the connection structure, since the connection structure is vertically symmetrical with respect to the sleeve 121, as will be described in detail below. The connecting structure comprises a first connecting plate 123 and a second connecting plate 124 which are symmetrically arranged on two sides of the upper part of the sleeve 121, one end of the first connecting plate 123 is connected with the first side of the sleeve 121 through a connecting rib 126, and the other end is connected with one side edge of the mounting table top 122; one end of the second connecting plate is connected with a second side opposite to the first side on the sleeve 121 through the connecting ribs 126, and the other end is connected with the other side of the mounting table 122.
The first connecting plate 123 and the second connecting plate 124 have the same structure and are hollow structures, for example, rectangular holes 127 which are sequentially arranged are formed in the first connecting plate 123 and the second connecting plate 124, and the size of the rectangular holes 127 close to the connecting ribs 126 is smaller than that of the rectangular holes 127 far away from the connecting ribs 126.
Further, the first connection plate 123 is inclined from one end thereof connected to the sleeve 121 to the other end thereof in a direction approaching the sleeve 121, and the second connection plate 124 is inclined from one end thereof connected to the sleeve 121 to the other end thereof in a direction approaching the sleeve 121, so that the structural strength of the support 12 can be further improved by the inclined first connection plate 123 and second connection plate 124. As shown in fig. 4, the angle α between the first connection plate 123 and the second connection plate 124 and the vertical direction is preferably 5 ° to 10 °, and more preferably 6 °.
The lower half structure of the connection structure is the same as the upper half, and will not be described again here. Preferably, the first web 123 of the lower half is contiguous with the first web 123 of the upper half and the second web 124 of the lower half is contiguous with the second web 124 of the upper half.
Further, the connection structure further includes a third connection plate 125 located between the first connection plate 123 and the second connection plate 124, and the number of the third connection plates 125 is not limited, and may be set according to a specific structure, for example, may be one or more as shown in fig. 5, one end of the third connection plate 125 is connected to the sleeve 121 via a connection rib 126, and the other end is connected to the middle of the mounting table 122. Preferably, the third connecting plate 125 is also in a hollow structure, for example, rectangular holes 127 are formed on the third connecting plate 125, which are sequentially arranged.
In order to enhance the bending and torsion resistance of support 12, reinforcing plates 128 are provided between adjacent connecting plates, and the number of reinforcing plates 128 is not limited and may be set according to specific requirements, for example, as shown in fig. 5, one reinforcing plate 128 may be provided between each adjacent two connecting plates, or a plurality of reinforcing plates may be provided. The reinforcing plate 128 may be a flat plate as shown in fig. 5, or may be in a wave shape or a bent shape, and in addition, a hollowed structure may be disposed on the reinforcing plate 128, which may further improve the structural strength of the support 12.
Of course, it is understood that the structure of the support 12 is not limited to the above-mentioned form, and has a hollow structure, and other structures that can improve the structural strength and reduce the weight may be used.
The driving device 13 is not particularly limited, and may be a motor as long as it can drive the propeller 14 to rotate.
As shown in fig. 6, the propeller 14 includes a rotating shaft 141 capable of rotating under the driving of the driving device 13 and a blade 142 disposed on the rotating shaft 141, in a preferred embodiment, the radius of the position where the blade 142 is disposed on the rotating shaft 141 is larger than the radius of the other positions, so that the reliability of the connection between the blade 142 and the rotating shaft 141 can be ensured, the structural strength of the rotating shaft 141 is improved, and the service life of the rotating shaft 141 is prolonged.
Further preferably, the rotating shaft 141 includes a first section 1411 and a second section 1412 connected to the first section 1411, the radius of the first section 1411 is larger than the radius of the second section 1412, and the blade 142 is disposed on the first section 1411. The outer peripheral surfaces of the first section 1411 and the second section 1412 are smoothly curved.
Aiming at the propeller installation structure, the invention also provides an unmanned aerial vehicle which adopts the propeller, and has the advantages of high structural strength, high flight reliability and strong loading capacity.
In a preferred embodiment, as shown in fig. 7, the unmanned aerial vehicle comprises a fuselage 2 and three horn arms 11 connected to the fuselage 2, each horn arm 11 being connected to a propeller 14 using a propeller mounting structure 1 as described above.
It will be appreciated that the terms "upper" and "lower" as used herein are intended to refer to positions of the propeller mounting structure when in a normal operating condition.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.
At the same time, it should be understood that the example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope thereof to those skilled in the art. Numerous specific details are set forth, such as examples of specific components, devices, and methods, in order to provide a thorough understanding of the present disclosure. It will be apparent to one skilled in the art that the example embodiments may be embodied in many different forms without the use of specific details, and that the example embodiments should not be construed as limiting the scope of the disclosure. In some example embodiments, well-known device structures and well-known techniques have not been described in detail.
When an element or layer is referred to as being "on," "engaged to," "connected to" or "coupled to" another element or layer, it can be directly on, engaged, connected or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to," or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a similar fashion (e.g., "between" and "directly between", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any or all combinations of one or more of the associated listed items.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another element, region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A propeller mounting structure, comprising:
a horn;
the support is arranged on the horn and comprises a hollowed-out structure;
the driving device is arranged on the support;
a propeller driven by the driving device,
wherein, the support includes:
a sleeve sleeved with the horn;
a mounting table on which the driving device is mounted; and
the connecting structure is connected between the sleeve and the mounting table top and comprises a first connecting plate and a second connecting plate which are symmetrically arranged on two sides of the sleeve and have the same structure;
one end of the first connecting plate is connected with the sleeve, the other end of the first connecting plate is connected with the mounting table top, and the first connecting plate is inclined from one end of the first connecting plate, which is connected with the sleeve, to the direction that the other end of the first connecting plate is close to the sleeve; and/or the number of the groups of groups,
one end of the second connecting plate is connected with the sleeve, the other end of the second connecting plate is connected with the mounting table surface, the second connecting plate inclines from one end of the second connecting plate connected with the sleeve to the direction of the other end of the second connecting plate approaching the sleeve,
the first connecting plate and the second connecting plate are of hollow structures, and the hollow structures are used for dispersing stress.
2. The propeller mounting structure of claim 1, wherein the mount is an integrally formed structure.
3. The propeller mounting structure of claim 1, wherein the mount is sleeved with an end of the horn.
4. The propeller mounting structure of claim 1, wherein an end of the connection plate is connected to the sleeve via a connection rib.
5. The propeller mounting structure of claim 1, wherein the connection structure further comprises at least one third connection plate located between the first and second connection plates.
6. The propeller mounting structure of claim 1, wherein at least one reinforcing plate is disposed between adjacent ones of the connection plates.
7. The propeller mounting structure of claim 1, wherein the connection plate extends in an axial direction of the sleeve.
8. The propeller mounting structure according to claim 1, wherein the propeller includes a rotation shaft rotatable by the driving device and a blade provided on the rotation shaft;
the radius of the position where the blade is arranged on the rotating shaft is larger than the radius of the other positions.
9. The propeller mounting structure of claim 8, wherein the shaft includes a first section and a second section connected to the first section, the first section having a radius greater than a radius of the second section, the blade being disposed on the first section;
the outer peripheral surfaces of the first section and the second section are in transition through a smooth curved surface.
10. The propeller mounting structure according to claim 1, wherein the support is of a vertically symmetrical structure, and the driving device and the propeller are provided at both the upper and lower ends of the support.
11. A unmanned aerial vehicle comprising a propeller mounting structure as claimed in any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286841.2A CN105905292B (en) | 2016-05-03 | 2016-05-03 | Screw mounting structure and unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286841.2A CN105905292B (en) | 2016-05-03 | 2016-05-03 | Screw mounting structure and unmanned aerial vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN105905292A CN105905292A (en) | 2016-08-31 |
| CN105905292B true CN105905292B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610286841.2A Active CN105905292B (en) | 2016-05-03 | 2016-05-03 | Screw mounting structure and unmanned aerial vehicle |
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| CN (1) | CN105905292B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108513555B (en) * | 2017-02-24 | 2021-11-05 | 深圳市大疆创新科技有限公司 | Foldable rack, rack assembly and unmanned aerial vehicle |
| CN109649646A (en) * | 2018-09-19 | 2019-04-19 | 徐成栋 | A kind of 3-D Dynamic aircraft |
| WO2020107407A1 (en) * | 2018-11-30 | 2020-06-04 | 深圳市大疆创新科技有限公司 | Motor mount, motor assembly, arm assembly, and unmanned aerial vehicle |
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| CN105905292A (en) | 2016-08-31 |
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