CN208630854U - A kind of rotor blade of high-lift power ratio - Google Patents
A kind of rotor blade of high-lift power ratio Download PDFInfo
- Publication number
- CN208630854U CN208630854U CN201820946251.2U CN201820946251U CN208630854U CN 208630854 U CN208630854 U CN 208630854U CN 201820946251 U CN201820946251 U CN 201820946251U CN 208630854 U CN208630854 U CN 208630854U
- Authority
- CN
- China
- Prior art keywords
- rotor blade
- cavity
- bevel gear
- fixedly connected
- propeller hub
- 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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Abstract
The utility model discloses a kind of rotor blades of high-lift power ratio, including propeller hub, the inside of the propeller hub offers cavity, the outside of the propeller hub is equipped with circumferentially equally distributed four rotor blades, the inner bottom wall of the cavity is rotatably connected to foundation, the inner roof wall of the cavity is rotatably connected to top pillar, the upper end of the foundation is fixedly connected with drive bevel gear, the lower end of the top pillar is fixedly connected with limit bevel gear, the outer wall of the foundation is socketed with worm gear, the inner bottom wall of the cavity is equipped with servo motor, the driving end of the servo motor is connected with shaft coupling by flat key, the shaft coupling is fixedly connected with worm screw far from one end of servo motor.The utility model carries out rotor blade rotation in the case where encountering varying environment and adjusts the case where the wind-force of wind direction, it is adaptable, keep rotary-wing flight more stable, in addition avoids being fixedly connected the case where causing a rotor blade damage just all to be replaced, save the cost with rotor blade because of propeller hub.
Description
Technical field
The utility model relates to rotor blade technical field more particularly to a kind of rotor blades of high-lift power ratio.
Background technique
With the development of the aviation industry of global general-use, the development of various general-purpose aircrafts is especially revolved also growing day by day
Rotor aircraft, because its is highly-safe, small in size, is not limited by place, the features such as manoeuvrable be widely used in agriculture plant protection shield,
The tasks such as forest fire detection, aerophotography, land survey, consequential loss assessment.Current rotor craft often requires that rotation
Wing engine obtains higher value of lift, and rotor craft generally uses the rotor blade with high-lift power ratio to guarantee to revolve
Rotor aircraft can also generate enough lift in the case where low-power.
The rotor blade of rotor craft is typically all to be fixedly connected with propeller hub in the prior art, the rotor in flight course
Blade will receive the influence of the wind-force of different wind directions, cause rotary-wing flight unstable.
Utility model content
Purpose of the utility model is to solve the rotor blade of rotor craft in the prior art and propeller hubs generally all
It is to be fixedly connected, will receive the influence of the wind-force of different wind directions in flight course, causes rotary-wing flight unstable
Problem, and a kind of rotor blade of the high-lift power ratio proposed.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of rotor blade of high-lift power ratio, including propeller hub, the inside of the propeller hub offer cavity, the propeller hub
Outside be equipped with circumferentially equally distributed four rotor blades, the inner bottom wall of the cavity are rotatably connected to foundation, the sky
The inner roof wall of chamber is rotatably connected to top pillar, and the upper end of the foundation is fixedly connected with drive bevel gear, and the lower end of the top pillar is solid
Surely it is connected with limit bevel gear, the outer wall of the foundation is socketed with worm gear, and the inner bottom wall of the cavity is equipped with servo motor, institute
The driving end for stating servo motor is connected with shaft coupling by flat key, and the shaft coupling is fixedly connected with far from one end of servo motor
Worm screw, the inner sidewall rotation connection of the worm screw one end and cavity far from shaft coupling.
Preferably, the worm gear and worm screw are intermeshed.
Preferably, the drive bevel gear with limit bevel gear circumferentially uniformly engage there are four driven wheel of differential, four
The driven wheel of differential is fixedly connected with sleeve far from the side side wall of drive bevel gear, and the sleeve is far from driven wheel of differential
One end runs through the inner sidewall of cavity and extends to the outside of cavity, and the junction of the sleeve and propeller hub is rotation connection.
Preferably, the internal thread of sleeve is connected with screw rod, and the one of the screw rod one end and rotor blade far from sleeve
End is fixedly connected, and the outer wall of the screw rod and the outer wall of sleeve offer the identical threaded hole of position size, the threaded hole
Internal screw thread is connected with fastening bolt, and the fastening bolt threads are connected with nut.
Preferably, the rotor blade is the rotor blade of promotion activity of force.
Compared with prior art, the advantages of rotor blade of this high-lift power ratio, is:
1, servo motor is set, shaft coupling, worm screw, foundation, worm gear, drive bevel gear, top pillar, limits bevel gear, is driven
Bevel gear and sleeve, servo motor drive worm screw to rotate by shaft coupling, and worm screw drives worm gear rotation, so that the active on foundation
The rotation of four driven wheel of differential is realized in bevel gear rotation, and rotor blade can carry out rotation adjusting, and rotor blade can be according to not
It is adjusted with the wind-force under environment, adaptive faculty is strong, avoids the influence by different wind direction wind-force, enhances flight stability.
2, sleeve, screw rod, fastening bolt, threaded hole, nut and rotor blade are set, when one of rotor blade damages
When, nut is screwed out, fastening bolt is screwed out in threaded hole, screws out screw rod in sleeve, realizes the disengaging of damage rotor blade and progress
Replacement, avoiding being fixedly connected because of rotor blade with propeller hub leads to the case where all replacing, save the cost.
It is adjusted in conclusion the utility model carries out rotor blade rotation in the case where encountering varying environment the case where the wind-force of wind direction
Section, it is adaptable, keep rotary-wing flight more stable, in addition avoids leading to one because propeller hub is fixedly connected with rotor blade
The case where rotor blade damage is just all replaced, save the cost.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of high-lift power ratio rotor blade structural schematic diagram；
Fig. 2 be the utility model proposes a kind of high-lift power ratio rotor blade overlooking structure diagram.
In figure: 1 propeller hub, 2 servo motors, 3 shaft couplings, 4 worm screws, 5 foundation, 6 worm gears, 7 drive bevel gears, 8 top pillars, 9 limits
Position bevel gear, 10 driven wheel of differential, 11 sleeves, 12 screw rods, 13 threaded holes, 14 fastening bolts, 15 rotor blades.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, a kind of rotor blade of high-lift power ratio, including propeller hub 1, the inside of propeller hub 1 offer cavity,
The outside of propeller hub 1 is equipped with circumferentially equally distributed four rotor blades 15, and rotor blade 15 is the rotor of promotion activity of force
Leaf, the rotor blade of high-lift power ratio can guarantee that rotor craft can also generate enough liters in the case where low-power
Power, the inner bottom wall of cavity are rotatably connected to foundation 5, and the inner roof wall of cavity is rotatably connected to top pillar 8, and the upper end of foundation 5 is fixed to be connected
It is connected to drive bevel gear 7, the lower end of top pillar 8 is fixedly connected with limit bevel gear 9, and the outer wall of foundation 5 is socketed with worm gear 6, cavity
Inner bottom wall servo motor 2 is installed, the driving end of servo motor 2 is connected with shaft coupling 3 by flat key, and shaft coupling 3 makes to rotate
More steady, shaft coupling 3 is fixedly connected with worm screw 4, the one end of worm screw 4 far from shaft coupling 3 and sky far from one end of servo motor 2
The inner sidewall of chamber is rotatablely connected, and worm gear 6 and worm screw 4 are intermeshed, and rotor craft can be according to specific wind during flight
To wind-force carry out rotor blade 15 rotation adjust, specifically can pass through servo motor 2 drive worm screw 4 rotate, worm screw 4 drive worm gear
6 rotations.
Drive bevel gear 7 circumferentially uniformly engage with limit bevel gear 9 there are four driven wheel of differential 10, four from mantle
Gear 10 is fixedly connected with sleeve 11, the one end of sleeve 11 far from driven wheel of differential 10 far from the side side wall of drive bevel gear 7
Through cavity inner sidewall and extend to the outside of cavity, the junction of sleeve 11 and propeller hub 1 is rotation connection, and worm gear 6 rotates
So that the drive bevel gear 7 on 5 outer wall of foundation rotates, drive bevel gear 7 drives four driven wheel of differential 10 to rotate, and realizes four
The rotation of rotor blade 15 is adjusted to adapt to the wind-force of wind direction under varying environment, and limit bevel gear 9 plays limitation driven wheel of differential
The effect of 10 positions.
11 internal screw thread of sleeve is connected with screw rod 12, and the one end of screw rod 12 far from sleeve 11 and one end of rotor blade 15 are fixed
Connection, the outer wall of screw rod 12 and the outer wall of sleeve 11 offer the identical threaded hole 13 of position size, 13 internal screw thread of threaded hole
It is connected with fastening bolt 14,14 threads of fastening bolt are connected with nut, by the threaded connection of screw rod 12 and sleeve 11, tightly
The threaded connection of fixing bolt 14, threaded hole and nut can be attached with propeller hub 1 by rotor blade 15 is firm, when one of rotation
When wing blade 15 is damaged, nut and fastening bolt 14 can be screwed out, and screw rod 12 is screwed out into sleeve 11, release rotor blade 15
It being fixedly connected and is replaced with propeller hub 1.
In the utility model, rotor craft can carry out rotor blade according to the wind-force of specific wind direction during flight
15 rotations are adjusted, and specifically worm screw 4 can be driven to rotate by servo motor 2, worm screw 4 drives worm gear 6 to rotate, so that 5 outer wall of foundation
On drive bevel gear 7 rotate, drive bevel gear 7 drives four driven wheel of differential 10 to rotate, and realizes four rotor blades 15
Rotation is adjusted to adapt to the wind-force of wind direction under varying environment, and limit bevel gear 9 plays the role of limiting 10 position of driven wheel of differential,
In addition, when one of rotor blade 15 is damaged nut and fastening bolt 14 can be screwed out, and screw rod 12 is screwed out sleeve
11, releasing rotor blade 15 being fixedly connected and being replaced with propeller hub 1.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of rotor blade of high-lift power ratio, including propeller hub (1), which is characterized in that the inside of the propeller hub (1) opens up
There is cavity, the outside of the propeller hub (1) is equipped with circumferentially equally distributed four rotor blades (15), the inner bottom wall of the cavity
It is rotatably connected to foundation (5), the inner roof wall of the cavity is rotatably connected to top pillar (8), and the upper end of the foundation (5) is fixedly connected
Have drive bevel gear (7), the lower end of the top pillar (8) is fixedly connected with limit bevel gear (9), the outer wall set of the foundation (5)
It is connected to worm gear (6), the inner bottom wall of the cavity is equipped with servo motor (2), and the driving end of the servo motor (2) passes through flat key
It is connected with shaft coupling (3), the shaft coupling (3) is fixedly connected with worm screw (4), the worm screw far from the one end of servo motor (2)
(4) inner sidewall of one end far from shaft coupling (3) and cavity is rotatablely connected.
2. a kind of rotor blade of high-lift power ratio according to claim 1, which is characterized in that the worm gear (6) with
Worm screw (4) intermeshing.
3. a kind of rotor blade of high-lift power ratio according to claim 1, which is characterized in that the drive bevel gear
(7) it is circumferentially uniformly engaged with limit bevel gear (9) there are four driven wheel of differential (10), four driven wheel of differential (10) are remote
Side side wall from drive bevel gear (7) is fixedly connected with sleeve (11), and the sleeve (11) is far from driven wheel of differential (10)
One end runs through the inner sidewall of cavity and extends to the outside of cavity, and the junction of the sleeve (11) and propeller hub (1) is that rotation connects
It connects.
4. a kind of rotor blade of high-lift power ratio according to claim 3, which is characterized in that in the sleeve (11)
It is threaded with screw rod (12), one end of the screw rod (12) one end and rotor blade (15) far from sleeve (11) is fixed to be connected
It connects, the outer wall of the screw rod (12) and the outer wall of sleeve (11) offer the identical threaded hole (13) of position size, the spiral shell
Pit (13) internal screw thread is connected with fastening bolt (14), and fastening bolt (14) threads are connected with nut.
5. a kind of rotor blade of high-lift power ratio according to claim 1, which is characterized in that the rotor blade
It (15) is the rotor blade of promotion activity of force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820946251.2U CN208630854U (en) | 2018-06-20 | 2018-06-20 | A kind of rotor blade of high-lift power ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820946251.2U CN208630854U (en) | 2018-06-20 | 2018-06-20 | A kind of rotor blade of high-lift power ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208630854U true CN208630854U (en) | 2019-03-22 |
Family
ID=65734360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820946251.2U Expired - Fee Related CN208630854U (en) | 2018-06-20 | 2018-06-20 | A kind of rotor blade of high-lift power ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208630854U (en) |
-
2018
- 2018-06-20 CN CN201820946251.2U patent/CN208630854U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 Termination date: 20210620 |