CN109153449A - Propeller, Power Component and unmanned vehicle - Google Patents
Propeller, Power Component and unmanned vehicle Download PDFInfo
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- CN109153449A CN109153449A CN201780029485.9A CN201780029485A CN109153449A CN 109153449 A CN109153449 A CN 109153449A CN 201780029485 A CN201780029485 A CN 201780029485A CN 109153449 A CN109153449 A CN 109153449A
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- blade
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- paddle disk
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/467—Aerodynamic features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
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Abstract
A kind of propeller, including blade (100), blade (100) rotation form paddle disk；The blade (100) includes blade root (101) and the blade tip (102) for deviating from the blade root (101)；The blade (100) has suction surface (103), pressure face (104), the leading edge (105) for connecting suction surface (103) and pressure face (104) a side and the rear (106) for connecting suction surface (103) and pressure face (104) another side；The blade (100) is formed with the lower concave part (107) for extending to leading edge (105) and rear (106) in the range of apart from the 50% to 80% of the paddle disk center.The propeller can reduce the air drag of blade, improve flight efficiency and endurance distance.A kind of Power Component (30) and unmanned vehicle are also provided.
Description
Technical field
The present invention relates to a kind of propeller, Power Component and unmanned vehicles, belong to unmanned vehicle technical field.
Background technique
Propeller is the important component of rotary wind type unmanned vehicle, is used for the rotation of output shaft in motor or engine
The landing, steering, hovering etc. that thrust or lift are converted into realize unmanned vehicle.Propeller generally comprises propeller hub and paddle
Leaf, propeller hub are sequentially connected by the output shaft of transmission parts and motor.When motor drives output shaft rotation, it is driven with output shaft
The propeller hub of connection also follows rotation, so that the blade being fixed on propeller hub be driven to rotate to form paddle disk, and then drives near blade
Air flowing, to generate the lift or thrust of rotary wind type unmanned vehicle.But when the diameter of paddle disk is smaller, with
The raising of revolution speed of propeller, the gas for flowing through blade turbulent state is gradually transitions by laminar condition, will cause propeller
Performance sharply declines.
Summary of the invention
In order to solve existing in the prior art above-mentioned or other potential problems, the embodiment of the present invention provides a kind of spiral
Paddle, Power Component and unmanned vehicle.
According to some embodiments of the present invention, a kind of propeller, including blade are provided, the blade rotates to form paddle disk；
The blade includes blade root and the blade tip away from the blade root；The blade have suction surface, pressure face, connection suction surface and
The leading edge of pressure face a side and the rear for connecting suction surface and another side of pressure face；The blade is apart from the paddle
The lower concave part for extending to leading edge and rear is formed in the range of the 50% to 80% of disk center.
According to some embodiments of the present invention, a kind of Power Component is provided, comprising: actuator and propeller；The spiral shell
Revolving paddle includes: blade and propeller hub, and the blade rotates to form paddle disk；The output axis connection of the propeller hub and the actuator；Institute
Stating blade includes blade root and the blade tip away from the blade root；The blade has suction surface, pressure face, connection suction surface and pressure
The leading edge of power face a side and the rear for connecting suction surface and another side of pressure face；The blade is apart from the paddle disk
The lower concave part for extending to leading edge and rear is formed in the range of the 50% to 80% of center.
According to some embodiments of the present invention, a kind of unmanned vehicle is provided, comprising: rack, horn and power packages
Part；One end of the horn is connect with the rack, and the other end of the horn is for installing the Power Component；The power
Component includes: actuator and propeller；The propeller includes blade and propeller hub, and the blade rotates to form paddle disk；It is described
The output axis connection of propeller hub and the actuator；The blade includes blade root and the blade tip away from the blade root；The blade
Leading edge and connection suction surface and the pressure face other side with suction surface, pressure face, connection suction surface and pressure face a side
The rear on side；The blade be formed in the range of apart from the 50% to 80% of the paddle disk center extend to leading edge and after
The lower concave part of edge.
Technical solution according to an embodiment of the present invention, by the range of blade 50% to 80% apart from paddle disk center
The lower concave part for extending to leading edge and rear is set, it is possible to reduce air flows through resistance when blade, so that working as the revolving speed of propeller
When raising, the possibility for flowing through the air generation vortex of propeller is reduced, to improve the flight efficiency of unmanned vehicle, increase
Endurance distance.
The advantages of additional aspect of the invention, will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Described in detail below, the above and other objects, features and advantages general of the embodiment of the present invention by referring to accompanying drawing
It becomes more clearly understood from.In the accompanying drawings, by by example and it is unrestricted in a manner of multiple embodiments of the invention are said
It is bright, in which:
Fig. 1 a- Fig. 1 e is structural schematic diagram of the propeller that provides of one embodiment of the invention under different perspectives；
Fig. 1 f be in Fig. 1 c E-E to cross-sectional view；
Fig. 2 is the left view of propeller in Fig. 1；
Fig. 3 is the bottom view of propeller in Fig. 1；
Fig. 4 is the top view of propeller in Fig. 1；
Fig. 5 is sectional view along A-A in Fig. 4；
Fig. 6 is B-B direction cross-sectional view in Fig. 4；
Fig. 7 be in Fig. 4 C-C to cross-sectional view；
Fig. 8 be in Fig. 4 D-D to cross-sectional view；
Fig. 9 be in Fig. 4 H-H to cross-sectional view；
Figure 10 be in Fig. 4 I-I to cross-sectional view；
Figure 11 be in Fig. 4 J-J to cross-sectional view；
Figure 12 be in Fig. 4 K-K to cross-sectional view；
Figure 13 be in Fig. 4 L-L to cross-sectional view；
Figure 14 be in Fig. 4 M-M to cross-sectional view；
Figure 15 is the structural schematic diagram for the propeller hub that one embodiment of the invention provides；
Figure 16 is the structural schematic diagram for the unmanned vehicle that one embodiment of the invention provides.
In figure:
100, blade；101, blade root；
102, blade tip；103, suction surface；
104, pressure face；105, leading edge；
106, rear；107, lower concave part；
200, propeller hub；201, first connecting portion；
202, second connecting portion；203, third interconnecting piece；
10, rack；20, horn；
30, Power Component.
Specific embodiment
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Firstly the need of explanation, the propeller in following embodiment is suitable for the lesser rotary wind type unmanned plane of diameter, example
Such as uniaxial or multiaxis unmanned plane.
Fig. 1 a- Fig. 1 e is structural schematic diagram of the propeller that provides of one embodiment of the invention under different perspectives；Fig. 1 f is
E-E is to cross-sectional view in Fig. 1 c；Fig. 2 is the left view of propeller in Fig. 1；Fig. 3 is the bottom view of propeller in Fig. 1；Fig. 4 is Fig. 1
The top view of middle propeller.
As shown in Figures 1 to 4, propeller provided in this embodiment, including blade 100, the blade 100 is in Power Component
It is rotated under the drive of (such as motor or engine).Blade 100 includes blade root 101 for being fixed on wheel hub and deviates from
The blade tip 102 of the blade root 101.When propeller works, blade 100 rotates to form paddle disk around a rotation center, to disturb
Take offence miscarry raw lift perhaps thrust drive unmanned vehicle movement such as dirigible or rotary wind type unmanned plane.The present embodiment mentions
The paddle disk diameter of the propeller of confession is less than 150mm, and blade 100 can be manufactured using arbitrary material in the prior art,
Including but not limited to steel, aluminium alloy, plastics, carbon fiber etc..It during fabrication, can also be using including molding, punching press, forging etc.
The processing technology of the various prior arts.
Before blade 100 also has suction surface 103 and pressure face 104, connection suction surface 103 and 104 a side of pressure face
Edge 105 and the rear 106 for connecting suction surface 103 and another side of pressure face 104.Wherein, pressure face 104 is unmanned flight
Device is in flight course, the one side of blade 100 upward；Suction surface 103 is unmanned vehicle in flight course, 100 court of blade
Under one side (in other words towards ground).
With reference to Fig. 1 a to Fig. 1 d, blade 100 is formed with lower concave part 107 in 50% to 80% range apart from paddle disk center
(approximate location of the lower concave part 107 on blade is illustrated with four line segments in figure, wherein be located at outside namely close to blade root
101 and the two lines section of blade tip 102 illustrate the position of 107 upper edge of lower concave part, the two lines section positioned inside illustrates
The position of 107 lower edge of lower concave part.It should be apparent that above-mentioned diagram is not the concrete restriction for lower concave part 107),
The front side edge of the lower concave part 107 extends to leading edge 105, back side edge extends to rear 106.Optionally, as shown in Figure 1 f, lower concave part
107 lower surface is lower than the other parts in paddle face, that is, lower concave part 107 is relative to blade in terms of the cross-sectional view shown in Fig. 1 f
100 other parts protrude more down, so as to preferably guide air-flow, to reduce fluid resistance.In production, with gold
For belonging to blade, blade 100 can be placed in a supporting table, be opened up in supporting table fluted, this groove corresponds to
Blade needs to form the position of lower concave part 107, then passes through punching press, so that it may form lower surface lower than other portions of suction surface 103
The lower concave part 107 divided.
F is continued to refer to figure 1, optionally, the other parts rounding off of lower concave part 107 and blade 100, so as to make to flow
Gas through blade 100 is fitted in the surface of blade 100, avoid its from rear 106 it is closer with a distance from just separate, to improve
The aerodynamic force performance of blade 100.
Optionally, preceding in leading edge to rear direction when blade 100 is generally in horizontality as shown in Fig. 1 a to 1f
The location of edge 105 is lower than the location of rear 106.In other words, pressure face 104, suction surface 103 and lower concave part 107
Surface form complete curved surface so that blade 100 without sharply torsion place, can make blade 100 have lesser stress,
And intensity is higher is not easily broken, reliability with higher.
With continued reference to Fig. 2, the thickness of blade 100 is optionally from blade root 101 to blade tip 102 and is gradually reduced, to make paddle
The one end of leaf 100 far from paddle disk center is that the flight of propeller is improved to reduce air drag in the most thin part of blade 100
Energy.
In the present embodiment, shown in as shown in Figure 1, Figure 3 and Figure 4, leading edge 105 is optionally provided with the curved portion that arches upward, should
The rest part for portion and the leading edge 105 of arching upward is to be connected smoothly.Specifically, the portion's of arching upward setting that Fig. 3 shows blade 100 exists
Close to the position of blade root 101 and the portion that arches upward of the blade 100 that is located above arches upward towards left side, underlying blade 100
Portion is towards right side.
The propeller of the present embodiment is extended to by being formed in 50% to 80% range of the blade 100 apart from paddle disk center
The lower concave part 107 of rear 106, so as to reduce resistance of the air when flowing through 100 surface of blade, in this way when blade 100
When revolving speed increases, the possibility that 100 airflow on surface of blade enters turbulent state can be reduced, to improve the working efficiency of propeller,
Increase endurance distance.
Fig. 5 is sectional view along A-A in Fig. 4；Fig. 6 is B-B direction cross-sectional view in Fig. 4；Fig. 7 be in Fig. 4 C-C to cross-sectional view；Fig. 8
It is D-D in Fig. 4 to cross-sectional view；Fig. 9 be in Fig. 4 H-H to cross-sectional view；Figure 10 be in Fig. 4 I-I to cross-sectional view；Figure 11 is J- in Fig. 4
J is to cross-sectional view；Figure 12 be in Fig. 4 K-K to cross-sectional view；Figure 13 be in Fig. 4 L-L to cross-sectional view；Figure 14 be in Fig. 4 M-M to section view
Figure.
As shown in Fig. 4 to Figure 14, the present embodiment provides a kind of sizes of blade 100 for being suitable for rotary wind type unmanned vehicle
Example is improved, but those skilled in the art can be applied to other directly or through simple change according to being described below later
On unmanned vehicle.
Specifically, changing in the present embodiment to the size at ten sections in the blade 100 of rotary wind type unmanned plane
Into, wherein improved possessed by the size at the section H-H, the section I-I, the section J-J and the section K-K have the effect of it is optimal:
It is apart being at 50% with paddle disk center, it may be assumed that it is as shown in Figure 4 at the section H-H that paddle disk center is H5, such as
The chord length L5 of blade 100 shown in Fig. 9 is 8mm ± 5mm, and angle of attack 5 is 15.29 ° ± 2.5 °.Wherein, chord length is referred in this section
At face, the endpoint Yu rear 106 that leading edge 105 is located at the leftmost side on the section are located at the endpoint of the rightmost side on the section in level side
To distance, the angle of attack is that leading edge 105 is located at the endpoint Yu rear 106 of the leftmost side on the section and is located at the end of the rightmost side on the section
The angle of line and horizontal direction between point, alternatively, the angle of attack is it can be appreciated that be the string wing and the gas incoming flow side of blade 100
To angle.
It is apart being at 60% with paddle disk center, it may be assumed that it is as shown in Figure 4 at the section I-I that paddle disk center is H6, such as
The chord length L6 of blade 100 shown in Fig. 10 is 6.70mm ± 5mm, and angle of attack 6 is 14.38 ° ± 2.5 °.
It is apart being at 70% with paddle disk center, it may be assumed that it is as shown in Figure 4 at the section J-J that paddle disk center is H7, such as
The chord length L7 of blade 100 shown in Figure 11 is 5.57mm ± 5mm, and angle of attack 7 is 12.39 ° ± 2.5 °.
It is apart being at 80% with paddle disk center, it may be assumed that it is as shown in Figure 4 at the section K-K that paddle disk center is H8, such as
The chord length L8 of blade 100 shown in Figure 12 is 4.97mm ± 5mm, and angle of attack 8 is 9.55 ° ± 2.5 °.
The present embodiment is configured by chord length to aforementioned four section in blade 100 and the angle of attack, it is possible to reduce air
Resistance when blade 100 is flowed through, so that the air for flowing through propeller will not generate vortex when the revolving speed of propeller improves, from
And it improves the flight efficiency of unmanned vehicle, increase endurance distance.
Based on the above technical solution, to Section A-A, section B-B, the section C-C, the section D-D, L-L in blade 100
The chord length and the angle of attack in section and the section M-M improve respectively, can be further reduced resistance when air flows through blade 100,
To improve the flight efficiency of unmanned vehicle, increase endurance distance.
It is apart being at 10% with paddle disk center, it may be assumed that it is as shown in Figure 4 at the Section A-A that paddle disk center is H1, such as
The chord length L1 of blade 100 shown in fig. 5 is 6.19mm ± 5mm, and angle of attack 1 is 18.36 ° ± 2.5 °.
It is apart being at 20% with paddle disk center, it may be assumed that it is as shown in Figure 4 at the section B-B that paddle disk center is H2, such as
The chord length L2 of blade 100 shown in fig. 6 is 9.30mm ± 5mm, and angle of attack 2 is 18.33 ° ± 2.5 °.
It is apart being at 30% with paddle disk center, it may be assumed that it is as shown in Figure 4 at the section C-C that paddle disk center is H3, such as
The chord length L3 of blade 100 shown in Fig. 7 is 9.90mm ± 5mm, and angle of attack 3 is 18.31 ° ± 2.5 °.
It is apart being at 40% with paddle disk center, it may be assumed that it is as shown in Figure 4 at the section D-D that paddle disk center is H4, such as
The chord length L4 of blade 100 shown in Fig. 8 is 9.16mm ± 5mm, and angle of attack 4 is 18.05 ° ± 2.5 °.
It is apart being at 90% with paddle disk center, it may be assumed that it is as shown in Figure 4 at the section L-L that paddle disk center is H9, such as
The chord length L9 of blade 100 shown in Figure 13 is 4.47mm ± 5mm, and angle of attack 9 is 7.68 ° ± 2.5 °.
It is apart being at 100% with paddle disk center, it may be assumed that it is as shown in Figure 4 at the section M-M that paddle disk center is H10,
The chord length L10 of blade 100 as shown in figure 14 is 4.18mm ± 5mm, and angle of attack 10 is 6.49 ° ± 2.5 °.
It will be appreciated by persons skilled in the art that above-mentioned section A-A, section B-B, section C-C, section D-D, section L-
The position of L and section M-M are not limited to above scheme, can slightly change.
For above-mentioned technical proposal, the present embodiment provides a kind of specific propeller, the radius of the paddle disk of the propeller is
38 ± 3.8mm, that is, the diameter H of paddle disk is 76 ± 7.6mm.It is apart being the chord length of blade 100 at 19mm with paddle disk center
Specially 8mm, the angle of attack are 15.29 °.It is apart being at 22.8mm with paddle disk center, the chord length of blade 100 is 6.70mm, the angle of attack
It is 14.38 °.It is apart being at 26.6mm with paddle disk center, the chord length of blade 100 is 5.57mm, and the angle of attack is 12.39 °.With paddle
Disk center is apart at 30.4mm, and the chord length of blade 100 is 4.97mm, and the angle of attack is 9.55 °.
It further, is apart being at 3.8mm with paddle disk center, the chord length of blade 100 is 6.19mm, and the angle of attack is
18.36°.It is apart being at 7.6mm with paddle disk center, the chord length of blade 100 is 9.30mm, and the angle of attack is 18.33 °.With paddle disk
Center is apart at 11.4mm, and the chord length of blade 100 is 9.90mm, and the angle of attack is 18.31 °.Apart it is being with paddle disk center
At 15.2mm, the chord length of blade 100 is 9.16mm, and the angle of attack is 18.05 °.It is apart being blade at 34.2mm with paddle disk center
100 chord length is 4.47mm, and the angle of attack is 7.68 °.It is apart being at 38mm with paddle disk center, the chord length of blade 100 is 4.18mm,
The angle of attack is 6.49 °.It is appreciated that because section A-A, section B-B, section C-C, section D-D, section L-L and section M-M position
It can slightly change, therefore correspondingly, attacking at section A-A, section B-B, section C-C, section D-D, section L-L and section M-M
Angle chord long value can also accordingly change.
In the present embodiment, the screw pitch of propeller can be 44mm, it may be assumed that blade 100 rotates a circle, the distance that theory rises
For 44mm.
Above-mentioned propeller provided by the present embodiment, by being compared with propeller in the prior art, when needs make
When propeller generates the pulling force of 20g, 30g and 40g, the propeller of the present embodiment needs power on axis to be offered can reduce
14.9%, 14.3% and 12.7%.For example, after tested according to a propeller model machine of the present embodiment manufacture, when it is mentioned respectively
For 20g, 30g, 40g and 43g pulling force when, it is only necessary to respectively provide 1.53W, 3.75W and 4.12W axis on power, and
A kind of existing propeller provides same pulling force and but needs to provide power on the axis of 2.00W, 3.35W and 5.10W respectively.Its
In, power refers to the output power of propeller on axis, and the ratio with electricity tune efficiency is the system power namely system of motor
Power/electricity adjusts efficiency on power=axis.
It continues to refer to figure 1 to Fig. 4, can connect two, three or three or more blades on the propeller hub 200 of propeller
100.The Jiang Grains drives the rotation of blade 100 to form paddle disk.Certainly, propeller hub 200 and blade 100 can be structure as a whole, can also
To be that blade 100 is arranged separately in the split type propeller formed on propeller hub 200, for example, can be in the blade root of blade 100
Mounting hole is formed on 101, so that blade 100 is installed on propeller hub 200 by mounting hole.
Specifically, Figure 15 shows a kind of structural schematic diagram of propeller hub.As shown in figure 15, which may include
One interconnecting piece 201, second connecting portion 202 and third interconnecting piece 203.Wherein, first connecting portion 201 is connect with blade 100, example
Such as, the mounting hole opened up on the blade root 101 of blade 100 is passed through using fastener the blade 100 is fixed on first connecting portion
On 201.Second connecting portion 202 is connect with actuator, such as second connecting portion 202 is set in the output shaft of motor or engine
On, drive blade 100 to rotate will pass through motor or engine driving wheel hub, to form paddle disk, thus generate lift or
Thrust drives manned or non-manned unmanned vehicle movement.The setting of third interconnecting piece 203 connects in first connecting portion 201 and second
For connecting the first connecting portion 201 and second connecting portion 202 between socket part 202.
Optionally, third interconnecting piece 203 can be two, three or three or more, be arranged at intervals on first connecting portion
Between 201 and second connecting portion 202.Above-mentioned multiple third interconnecting pieces 203 can be evenly arranged in first connecting portion 201 and second
Between interconnecting piece 202.For example, three evenly spaced can be arranged between first connecting portion 201 and second connecting portion 202
Three interconnecting pieces 203.
The propeller of the present embodiment is connected first connecting portion 201 and second connecting portion 202 by third interconnecting piece 203
Together, the weight that can mitigate propeller improves the flying quality of propeller.Especially when propeller hub 200 and blade 100 are one
When the propeller of body structure, flying quality can be greatly improved.And it is arranged at intervals on first connecting portion 201 and second and connects
The structural strength of propeller not only can be improved in third interconnecting piece 203 between socket part 202, but also can be further improved spiral shell
Stability of the paddle in flight course is revolved, to improve the flying quality of propeller.In addition, in specifically manufacture propeller hub 200, it can
Will be seamlessly transitted at third interconnecting piece 203 and the link position of first connecting portion 201 and second connecting portion 202, to subtract
The stress of few link position, improves the reliability of propeller hub 200.
Further, in some embodiments, propeller can be self-tightening paddle, be formed in the propeller hub 200 of the self-tightening paddle
Connecting hole for the output axis connection with motor.In the present embodiment, self-tightening paddle refers to forms on the propeller hub 200 of the propeller
There is self-locking mechanism matched with fuselage, when covering the connecting hole of propeller hub 200 on the output shaft of motor and start unmanned vehicle
When, mutually matched self-locking mechanism that fuselage and propeller hub 200 are arranged can by propeller lock on fuselage, thus avoid flying paddle or
Person's aircraft bombing.For example, opening up groove on propeller hub 200, and the pawl driven by cam mechanism is set on fuselage, thus at nobody
When aircraft starts, by the rotation of cam mechanism rotate come with pawl along the axial movement of propeller hub 200 to lock propeller hub
200.For another example, the disk-like structure by magnet control is installed on fuselage, which can be along the axial direction of propeller hub 200
Movement, so that wheel hub to be pressed on to the locking realized between disk-like structure and fuselage to propeller hub 200.
In other embodiments, propeller is also possible to fold paddle, and this makes it possible to by by multiple 100 Hes of blade
Horn is folded into parallel with fuselage or is sticked on fuselage, to reduce the volume of entire unmanned vehicle, thus convenient transportation
And storage.
Paddle or anti-paddle it should be appreciated by those skilled in the art that above-mentioned propeller can be positive.Wherein, positive paddle refers to from vertical view
From the point of view of unmanned vehicle, the propeller of lift is rotated clockwise and generated；Anti- paddle refers to from the angle for overlooking unmanned vehicle
Degree is seen, rotates and generate the propeller of lift counterclockwise.The structure of positive paddle is that mirror surface is symmetrical with the structure of anti-paddle.
The present embodiment also provides a kind of Power Component, including actuator and the propeller as provided by above content, the spiral shell
Revolve the output axis connection that paddle passes through wheel hub and actuator.Wherein, actuator is specifically as follows motor, such as hollow-cup motor.
The Power Component of the present embodiment is prolonged by being formed in 50% to 80% range of the blade 100 apart from paddle disk center
The lower concave part 107 of leading edge 105 and rear 106 is reached, so as to reduce resistance of the air when flowing through 100 surface of blade, this
Sample can reduce the possibility that 100 airflow on surface of blade enters turbulent state, when the revolving speed of blade 100 increases to improve spiral
The working efficiency of paddle increases endurance distance.
Figure 16 is the structural schematic diagram of unmanned vehicle provided in this embodiment.As shown in figure 16, the present embodiment also provides
A kind of unmanned vehicle, including rack 10, horn 20 and at least one above-mentioned Power Component 30, one end of horn 20 and machine
Frame 10 connects, and the other end of horn 20 is for installing Power Component 30.Unmanned vehicle as described above can be dirigible or
Rotary wind type unmanned vehicle, such as quadrotor drone.The propeller of the Power Component of the unmanned vehicle, by blade
100 form the lower concave part 107 for extending to rear 106 in 50% to 80% range of paddle disk center, so as to reduce sky
Resistance of the gas when flowing through 100 surface of blade can reduce by 100 airflow on surface of blade in this way when the revolving speed of blade 100 increases
Increase endurance distance into the possibility of turbulent state to improve the working efficiency of propeller.
Optionally, horn 20 can be fixed in rack 10 or be rotatably connected with rack 10.When horn 20 can be rotated
When ground is connected in rack 10, the volume of unmanned vehicle occupancy can reduce, facilitate its storage and transport.
Finally, although having been described in the context of these embodiments associated with certain embodiments of the present technology
Advantage, but the advantage that other embodiments also may include, and simultaneously the present invention is all described in detail in not all embodiments
All advantages, by the technical characteristic in embodiment objective the advantages of bringing be regarded as the present invention and be different from the prior art
Advantage all belongs to the scope of protection of the present invention.
Claims (73)
1. a kind of propeller, which is characterized in that including blade, the blade rotates to form paddle disk；
The blade includes blade root and the blade tip away from the blade root；
The blade have suction surface, pressure face, connection suction surface and pressure face a side leading edge and connection suction surface and
The rear of another side of pressure face；
The blade is formed in the range of apart from the 50% to 80% of the paddle disk center extends to leading edge and rear
Lower concave part.
2. propeller according to claim 1, which is characterized in that the lower surface of the lower concave part is lower than other of suction surface
Part.
3. propeller according to claim 1, which is characterized in that the round and smooth mistake of the other parts of the lower concave part and blade
It crosses.
4. propeller according to claim 1, which is characterized in that the pressure face and suction surface are curved surface.
5. propeller according to claim 1, which is characterized in that the leading edge has the curved portion that arches upward.
6. propeller according to claim 1, which is characterized in that the propeller includes multiple blades, the propeller
It further include propeller hub, the multiple blade is uniformly arranged along the circumferential direction of the propeller hub.
7. propeller according to claim 6, which is characterized in that the propeller hub includes the first connection for connecting the blade
Portion, the second connecting portion for connecting actuator and spaced between the first connecting portion and second connecting portion
Three interconnecting pieces.
8. propeller according to claim 7, which is characterized in that the blade root be formed with for the first connecting portion
Fixed mounting hole.
9. propeller according to claim 1, which is characterized in that the thickness of the blade is from the blade root to the blade tip
It is gradually reduced.
10. -9 described in any item propellers according to claim 1, which is characterized in that
It is apart being that the chord length of the blade is 8.00mm ± 5mm at 50% with the paddle disk center, the angle of attack is 15.29 ° ±
2.5°；
It is apart being that the chord length of the blade is 6.70mm ± 5mm at 60% with the paddle disk center, the angle of attack is 14.38 ° ±
2.5°；
It is apart being that the chord length of the blade is 5.57mm ± 5mm at 70% with the paddle disk center, the angle of attack is 12.39 ° ±
2.5°；
It is apart being that the chord length of the blade is 4.97mm ± 5mm at 80% with the paddle disk center, the angle of attack is 9.55 ° ±
2.5°。
11. propeller according to claim 10, which is characterized in that the radius of the paddle disk is 38 ± 3.8mm,
It is apart being at 19mm with the paddle disk center, the chord length of the blade is 8.00mm, and the angle of attack is 15.29 °；
It is apart being at 22.8mm with the paddle disk center, the chord length of the blade is 6.70mm, and the angle of attack is 14.38 °；
It is apart being at 26.6mm with the paddle disk center, the chord length of the blade is 5.57mm, and the angle of attack is 12.39 °；
It is apart being at 30.4mm with the paddle disk center, the chord length of the blade is 4.97mm, and the angle of attack is 9.55 °.
12. propeller according to claim 10, which is characterized in that be apart institute at 90% with the paddle disk center
The chord length for stating blade is 4.47mm ± 5mm, and the angle of attack is 7.68 ° ± 2.5 °.
13. propeller according to claim 12, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with institute
Shu Jiang disk center is apart at 34.2mm, and the chord length of the blade is 4.47mm, and the angle of attack is 7.68 °.
14. propeller according to claim 10, which is characterized in that be apart the paddle at 100% with paddle disk center
The chord length of leaf is 4.18mm ± 5mm, and the angle of attack is 6.49 ° ± 2.5 °.
15. propeller according to claim 14, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with paddle
Disk center is apart at 38mm, and the chord length of the blade is 4.18mm, and the angle of attack is 6.49 °.
16. propeller according to claim 10, which is characterized in that be apart institute at 40% with the paddle disk center
The chord length for stating blade is 9.16mm ± 5mm, and the angle of attack is 18.05 ° ± 2.5 °.
17. propeller according to claim 16, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with institute
Shu Jiang disk center is apart at 15.2mm, and the chord length of the blade is 9.16mm, and the angle of attack is 18.05 °.
18. propeller according to claim 10, which is characterized in that be apart institute at 30% with the paddle disk center
The chord length for stating blade is 9.90mm ± 5mm, and the angle of attack is 18.31 ° ± 2.5 °.
19. propeller according to claim 18, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with institute
Shu Jiang disk center is apart at 11.4mm, and the chord length of the blade is 9.90mm, and the angle of attack is 18.31 °.
20. propeller according to claim 10, which is characterized in that be apart institute at 20% with the paddle disk center
The chord length for stating blade is 9.30mm ± 5mm, and the angle of attack is 18.33 ° ± 2.5 °.
21. propeller according to claim 20, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with institute
Shu Jiang disk center is apart at 7.6mm, and the chord length of the blade is 9.30mm, and the angle of attack is 18.33 °.
22. propeller according to claim 10, which is characterized in that be apart institute at 10% with the paddle disk center
The chord length for stating blade is 6.19mm ± 5mm, and the angle of attack is 18.36 ° ± 2.5 °.
23. propeller according to claim 22, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with institute
Shu Jiang disk center is apart at 3.8mm, and the chord length of the blade is 6.19mm, and the angle of attack is 18.36 °.
24. propeller according to claim 10, which is characterized in that the screw pitch of the propeller is 44mm.
25. a kind of Power Component characterized by comprising actuator and propeller；
The propeller includes: blade and propeller hub, and the blade rotates to form paddle disk；
The output axis connection of the propeller hub and the actuator；
The blade includes blade root and the blade tip away from the blade root；
The blade have suction surface, pressure face, connection suction surface and pressure face a side leading edge and connection suction surface and
The rear of another side of pressure face；
The blade is formed in the range of apart from the 50% to 80% of the paddle disk center extends to leading edge and rear
Lower concave part.
26. Power Component according to claim 25, which is characterized in that the lower surface of the lower concave part is lower than suction surface
Other parts.
27. Power Component according to claim 25, which is characterized in that the other parts of the lower concave part and the blade
Rounding off.
28. Power Component according to claim 25, which is characterized in that the pressure face and suction surface are curved surface.
29. Power Component according to claim 25, which is characterized in that the leading edge has the curved portion that arches upward.
30. Power Component according to claim 25, which is characterized in that the propeller includes multiple blades, described more
A blade is uniformly arranged along the circumferential direction of the propeller hub.
31. Power Component according to claim 30, which is characterized in that the propeller hub includes connect the blade first
Interconnecting piece, the second connecting portion for connecting actuator and the interval setting between the first connecting portion and second connecting portion
Third interconnecting piece.
32. Power Component according to claim 31, which is characterized in that the blade root is formed with for connecting with described first
The fixed mounting hole of socket part.
33. Power Component according to claim 25, which is characterized in that the thickness of the blade is from the blade root to described
Blade tip is gradually reduced.
34. according to the described in any item Power Components of claim 25-33, which is characterized in that
It is apart being that the chord length of the blade is 8.00mm ± 5mm at 50% with the paddle disk center, the angle of attack is 15.29 ° ±
2.5°；
It is apart being that the chord length of the blade is 6.70mm ± 5mm at 60% with the paddle disk center, the angle of attack is 14.38 ° ±
2.5°；
It is apart being that the chord length of the blade is 5.57mm ± 5mm at 70% with the paddle disk center, the angle of attack is 12.39 ° ±
2.5°；
It is apart being that the chord length of the blade is 4.97mm ± 5mm at 80% with the paddle disk center, the angle of attack is 9.55 ° ±
2.5°。
35. Power Component according to claim 34, which is characterized in that the radius of the paddle disk is 38 ± 3.8mm,
It is apart being at 19mm with the paddle disk center, the chord length of the blade is 8.00mm, and the angle of attack is 15.29 °；
It is apart being at 22.8mm with the paddle disk center, the chord length of the blade is 6.70mm, and the angle of attack is 14.38 °；
It is apart being at 26.6mm with the paddle disk center, the chord length of the blade is 5.57mm, and the angle of attack is 12.39 °；
It is apart being at 30.4mm with the paddle disk center, the chord length of the blade is 4.97mm, and the angle of attack is 9.55 °.
36. Power Component according to claim 34, which is characterized in that be apart at 90% with the paddle disk center,
The chord length of the blade is 4.47mm ± 5mm, and the angle of attack is 7.68 ° ± 2.5 °.
37. Power Component according to claim 36, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with
The paddle disk center is apart at 34.2mm, and the chord length of the blade is 4.47mm, and the angle of attack is 7.68 °.
38. Power Component according to claim 34, which is characterized in that be apart at 100% with paddle disk center, it is described
The chord length of blade is 4.18mm ± 5mm, and the angle of attack is 6.49 ° ± 2.5 °.
39. the Power Component according to claim 38, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with
Paddle disk center is apart at 38mm, and the chord length of the blade is 4.18mm, and the angle of attack is 6.49 °.
40. Power Component according to claim 34, which is characterized in that be apart at 40% with the paddle disk center,
The chord length of the blade is 9.16mm ± 5mm, and the angle of attack is 18.05 ° ± 2.5 °.
41. Power Component according to claim 40, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with
The paddle disk center is apart at 15.2mm, and the chord length of the blade is 9.16mm, and the angle of attack is 18.05 °.
42. Power Component according to claim 34, which is characterized in that be apart at 30% with the paddle disk center,
The chord length of the blade is 9.90mm ± 5mm, and the angle of attack is 18.31 ° ± 2.5 °.
43. Power Component according to claim 42, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with
The paddle disk center is apart at 11.4mm, and the chord length of the blade is 9.90mm, and the angle of attack is 18.31 °.
44. Power Component according to claim 34, which is characterized in that be apart at 20% with the paddle disk center,
The chord length of the blade is 9.30mm ± 5mm, and the angle of attack is 18.33 ° ± 2.5 °.
45. Power Component according to claim 44, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with
The paddle disk center is apart at 7.6mm, and the chord length of the blade is 9.30mm, and the angle of attack is 18.33 °.
46. Power Component according to claim 34, which is characterized in that be apart at 10% with the paddle disk center,
The chord length of the blade is 6.19mm ± 5mm, and the angle of attack is 18.36 ° ± 2.5 °.
47. Power Component according to claim 46, which is characterized in that the radius of the paddle disk be 38 ± 3.8mm, with
The paddle disk center is apart at 3.8mm, and the chord length of the blade is 6.19mm, and the angle of attack is 18.36 °.
48. Power Component according to claim 34, which is characterized in that the screw pitch of the propeller is 44mm.
49. a kind of unmanned vehicle characterized by comprising rack, horn and Power Component；
One end of the horn is connect with the rack, and the other end of the horn is for installing the Power Component；
The Power Component includes: actuator and propeller；
The propeller includes blade and propeller hub, and the blade rotates to form paddle disk；
The output axis connection of the propeller hub and the actuator；
The blade includes blade root and the blade tip away from the blade root；
The blade have suction surface, pressure face, connection suction surface and pressure face a side leading edge and connection suction surface and
The rear of another side of pressure face；
The blade is formed in the range of apart from the 50% to 80% of the paddle disk center extends to leading edge and rear
Lower concave part.
50. unmanned vehicle according to claim 49, which is characterized in that the lower surface of the lower concave part is lower than suction surface
Other parts.
51. unmanned vehicle according to claim 49, which is characterized in that other portions of the lower concave part and the blade
Divide rounding off.
52. unmanned vehicle according to claim 49, which is characterized in that the pressure face and suction surface are curved surface.
53. unmanned vehicle according to claim 49, which is characterized in that the leading edge has the curved portion that arches upward.
54. unmanned vehicle according to claim 49, which is characterized in that the propeller includes multiple blades, described
Multiple blades are uniformly arranged along the circumferential direction of the propeller hub.
55. unmanned vehicle according to claim 54, which is characterized in that the propeller hub includes connect the blade
One interconnecting piece, the second connecting portion for connecting actuator and being spaced between the first connecting portion and second connecting portion is set
The third interconnecting piece set.
56. unmanned vehicle according to claim 55, which is characterized in that the blade root is formed with for described first
The fixed mounting hole of interconnecting piece.
57. unmanned vehicle according to claim 49, which is characterized in that the thickness of the blade is from the blade root to institute
Blade tip is stated to be gradually reduced.
58. according to the described in any item unmanned vehicles of claim 49-57, which is characterized in that
It is apart being that the chord length of the blade is 8.00mm ± 5mm at 50% with the paddle disk center, the angle of attack is 15.29 ° ±
2.5°；
It is apart being that the chord length of the blade is 6.70mm ± 5mm at 60% with the paddle disk center, the angle of attack is 14.38 ° ±
2.5°；
It is apart being that the chord length of the blade is 5.57mm ± 5mm at 70% with the paddle disk center, the angle of attack is 12.39 ° ±
2.5°；
It is apart being that the chord length of the blade is 4.97mm ± 5mm at 80% with the paddle disk center, the angle of attack is 9.55 ° ±
2.5°。
59. unmanned vehicle according to claim 58, which is characterized in that the radius of paddle disk is 38 ± 3.8mm,
It is apart being at 19mm with the paddle disk center, the chord length of the blade is 8.00mm, and the angle of attack is 15.29 °；
It is apart being at 22.8mm with the paddle disk center, the chord length of the blade is 6.70mm, and the angle of attack is 14.38 °；
It is apart being at 26.6mm with the paddle disk center, the chord length of the blade is 5.57mm, and the angle of attack is 12.39 °；
It is apart being at 30.4mm with the paddle disk center, the chord length of the blade is 4.97mm, and the angle of attack is 9.55 °.
60. unmanned vehicle according to claim 58, which is characterized in that be apart 90% with the paddle disk center
Place, the chord length of the blade are 4.47mm ± 5mm, and the angle of attack is 7.68 ° ± 2.5 °.
61. unmanned vehicle according to claim 60, which is characterized in that the radius of the paddle disk is 38 ± 3.8mm,
It is apart at 34.2mm with the paddle disk center, the chord length of the blade is 4.47mm, and the angle of attack is 7.68 °.
62. unmanned vehicle according to claim 58, which is characterized in that be apart institute at 100% with paddle disk center
The chord length for stating blade is 4.18mm ± 5mm, and the angle of attack is 6.49 ° ± 2.5 °.
63. unmanned vehicle according to claim 62, which is characterized in that the radius of the paddle disk is 38 ± 3.8mm,
It is apart at 38mm with paddle disk center, the chord length of the blade is 4.18mm, and the angle of attack is 6.49 °.
64. unmanned vehicle according to claim 58, which is characterized in that be apart 40% with the paddle disk center
Place, the chord length of the blade are 9.16mm ± 5mm, and the angle of attack is 18.05 ° ± 2.5 °.
65. unmanned vehicle according to claim 64, which is characterized in that the radius of the paddle disk is 38 ± 3.8mm,
It is apart at 15.2mm with the paddle disk center, the chord length of the blade is 9.16mm, and the angle of attack is 18.05 °.
66. unmanned vehicle according to claim 58, which is characterized in that be apart 30% with the paddle disk center
Place, the chord length of the blade are 9.90mm ± 5mm, and the angle of attack is 18.31 ° ± 2.5 °.
67. unmanned vehicle according to claim 66, which is characterized in that the radius of the paddle disk is 38 ± 3.8mm,
It is apart at 11.4mm with the paddle disk center, the chord length of the blade is 9.90mm, and the angle of attack is 18.31 °.
68. unmanned vehicle according to claim 58, which is characterized in that be apart 20% with the paddle disk center
Place, the chord length of the blade are 9.30mm ± 5mm, and the angle of attack is 18.33 ° ± 2.5 °.
69. unmanned vehicle according to claim 68, which is characterized in that the radius of the paddle disk is 38 ± 3.8mm,
It is apart at 7.6mm with the paddle disk center, the chord length of the blade is 9.30mm, and the angle of attack is 18.33 °.
70. unmanned vehicle according to claim 58, which is characterized in that be apart 10% with the paddle disk center
Place, the chord length of the blade are 6.19mm ± 5mm, and the angle of attack is 18.36 ° ± 2.5 °.
71. unmanned vehicle according to claim 70, which is characterized in that the radius of the paddle disk is 38 ± 3.8mm,
It is apart at 3.8mm with the paddle disk center, the chord length of the blade is 6.19mm, and the angle of attack is 18.36 °.
72. unmanned vehicle according to claim 58, which is characterized in that the screw pitch of the propeller is 44mm.
73. unmanned vehicle according to claim 49, which is characterized in that the horn rotatably connects with the rack
It connects.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/117851 WO2019119379A1 (en) | 2017-12-21 | 2017-12-21 | Propeller, power assembly, and unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109153449A true CN109153449A (en) | 2019-01-04 |
Family
ID=64802990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780029485.9A Pending CN109153449A (en) | 2017-12-21 | 2017-12-21 | Propeller, Power Component and unmanned vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109153449A (en) |
| WO (1) | WO2019119379A1 (en) |
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| CN110053765A (en) * | 2019-04-29 | 2019-07-26 | 安徽冠廷科技有限公司 | Blade |
| CN113295882A (en) * | 2021-04-13 | 2021-08-24 | 四川腾盾科技有限公司 | Helicopter airspeed determination method |
| WO2021212869A1 (en) * | 2020-04-21 | 2021-10-28 | 深圳市大疆创新科技有限公司 | Propeller, power assembly, and aircraft |
| CN115924141A (en) * | 2023-01-06 | 2023-04-07 | 南京流湾科技有限公司 | Unmanned aerial vehicle rotor mechanism |
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| Publication number | Publication date |
|---|---|
| WO2019119379A1 (en) | 2019-06-27 |
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