CN209274885U - A kind of variable-pitch propeller and unmanned plane - Google Patents
A kind of variable-pitch propeller and unmanned plane Download PDFInfo
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- CN209274885U CN209274885U CN201822131160.6U CN201822131160U CN209274885U CN 209274885 U CN209274885 U CN 209274885U CN 201822131160 U CN201822131160 U CN 201822131160U CN 209274885 U CN209274885 U CN 209274885U
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- support shaft
- variable
- rib piece
- gear
- pitch propeller
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Abstract
The utility model embodiment discloses a kind of variable-pitch propeller and unmanned plane, the variable-pitch propeller includes support shaft, multiple groups aerofoil profile support member and elastic covering, the inner end of support shaft is connected with the propeller hub of aircraft, multiple groups aerofoil profile support member is evenly spaced arranged in support shaft, every group of aerofoil profile support member includes rib piece and motor, rib piece covers in support shaft, motor is arranged in support shaft, the rib on piece that the both ends of elastic covering are respectively fitted over the inner and outer ends of support shaft forms aerofoil, rib piece pulls elastic covering to change the air force for acting on elastic covering surface.Since each rib piece can arbitrarily adjust angle of attack angle according to preset data, and adjust after angle can be formed it is motionless, realize the effect for accurately controlling the propeller under different flight state pitch, unmanned plane in top load, the effect for the flying quality of unmanned plane accurately being controlled and being ensured flight safety is ensured when executing the particular flight state of special duty.
Description
Technical field
The utility model relates to vehicle technology fields, and in particular to a kind of variable-pitch propeller and unmanned plane.
Background technique
The blade of propeller all has an inclination angle with Plane of rotation, and variable-pitch propeller can random adjustable inclination as needed
Angle, variable-pitch propeller are the pitches for changing propeller with the variation of aircraft flight height, also can be according to engine
Altitude performance obtains whole effective power from engine there.After displacement paddle, the altitude response of airscrew engine
As soon as the altitude performance of curve and engine just synthesizes a curve, thus again without any due to propeller " become weight " or
" lightening " and caused by additional power loss.So displacement paddle can make the most of the effective of engine in any condition
Power, variable-pitch propeller used by current unmanned plane, the propeller pitch angle of blade is fixed gauge along the distribution of radial direction
Rule, i.e., be only able to carry out whole displacement, can not also be able to achieve local displacement while realizing whole displacement.
In the case of cannot achieve local displacement, there are unmanned planes in top load, executes the particular flight state of special duty
When be unable to reach the problem of needing to the flying quality and flight safety of unmanned plane.
Utility model content
The utility model embodiment is designed to provide a kind of variable-pitch propeller and unmanned plane, to solve existing spiral
Above-mentioned problem existing for paddle.
To achieve the above object, the utility model embodiment provides a kind of variable-pitch propeller, and the variable-pitch propeller includes
Support shaft, multiple groups aerofoil profile support member and elastic covering, the inner end of support shaft are connected with the propeller hub of aircraft, multiple groups aerofoil profile support member spacing
It is evenly provided in support shaft, every group of aerofoil profile support member includes rib piece and the electricity for drive wing fin adjustment angle of attack angle
Machine, rib piece are equipped with through-hole, and rib piece is covered in support shaft by through-hole, and motor is arranged in support shaft, motor and aircraft
Controller connection, the both ends of elastic covering be respectively fitted over the inner and outer ends of support shaft rib on piece formed aerofoil,
Rib piece pulls elastic covering to change the air force for acting on elastic covering surface.
Preferably, the support shaft is equipped with multiple groups card slot, the left and right sides of rib piece, the wing is arranged in every group of card slot
Fin is located in support shaft by the cooperation of card slot and snap ring, and the motor is arranged in support shaft by motor cabinet.
Preferably, the side of the rib piece is equipped with first gear, the end of the rotating shaft of the motor is equipped with the
Two gears, second gear and first gear engagement connection.
Preferably, the first gear is worm gear, the second gear is worm screw.
Preferably, the second gear is hollow worm screw.
Preferably, the rib piece and first gear are integrally formed.
Preferably, the motor cabinet is L-shaped, the upper and lower side of the motor cabinet passes through screw and motor and branch respectively
Support axis connection.
The invention also discloses a kind of unmanned plane, the unmanned plane includes variable-pitch propeller as described above.
The utility model embodiment has the advantages that
Since each rib piece can arbitrarily adjust angle of attack angle according to preset data, and angle can be formed not after adjusting
It is dynamic, realize the effect that pitch is accurately controlled the propeller under different flight state, unmanned plane is in top load, special of execution
The effect for the flying quality of unmanned plane accurately being controlled and being ensured flight safety is ensured when the particular flight state of business.
Detailed description of the invention
Fig. 1 is the side section view partial structural diagram that the utility model embodiment 1 provides.
Fig. 2 is the positive schematic cross-sectional view that the utility model embodiment 1 provides.
Fig. 3 does not cover the overlooking state schematic diagram in rib on piece for the covering that the utility model embodiment 1 provides.
Fig. 4 is that the covering that the utility model embodiment 1 provides covers the overlooking state schematic diagram after rib on piece.
In figure: 1, support shaft；11, card slot；12, snap ring；2, aerofoil profile support member；21, rib piece；211, first gear；22, electric
Machine；221, second gear；3, elastic covering；4, propeller hub.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the utility model enforceable restriction item so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of the utility model can be generated and the purpose that can reach, should all still it fall in the revealed technology of the utility model
In the range of Rong get Neng is covered.Meanwhile cited such as "upper", "lower", " left side ", the right side in this specification ", the use of " centre "
Language is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, the change of relativeness or
Adjustment, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
Embodiment 1
It as shown in Figure 1 and Figure 4, is a kind of variable-pitch propeller provided in this embodiment, the variable-pitch propeller includes two panels
Or blade more than two panels, every blade include support shaft 1, multiple groups aerofoil profile support member 2 and elastic covering 3, the inner end of support shaft 1 and
The propeller hub 4 of aircraft connects, and the multiple groups aerofoil profile support member 2 is evenly spaced arranged in support shaft 1, and every group of aerofoil profile support member 2 is wrapped
It includes rib piece 21 and adjusts the motor 22 of angle of attack angle for drive wing fin 21, rib piece 21 is equipped with through-hole and same with through-hole
The first gear 211 in the center of circle, first gear 211 are worm gear, and rib piece 21 is by through-hole and 211 sets of first gear in support shaft 1
On, the motor 22 is arranged in support shaft 1 by motor cabinet 23, and motor 22 is micro motor, and motor cabinet 23 is L-shaped, electricity
The upper and lower side of base 23 passes through screw respectively and connect with motor 22 and support shaft 1, and motor 22 passes through the control of electric wire and aircraft
Device connection, the end of the rotating shaft of motor 22 are equipped with second gear 221, and second gear 221 is the worm screw with worm gear, snail
The driving of worm and gear formula realizes the effect for making rib piece 21 that angle is formed after changing the angle of attack, second gear 221 and the first tooth
Wheel 211 engagement connection, the both ends of elastic covering 3 be respectively fitted on the rib piece 21 of the inner and outer ends of support shaft 1 formed it is smooth
Aerofoil, when unmanned plane is when taking off, terrestrial operation person is issued to unmanned plane by propeller by wireless control platform
Pitch is adjusted to the signal of small pitch, so that engine works under maximum (top) speed and maximum power state, thus makes propeller
Maximum pulling force is generated, at this point, the electric-control system on unmanned plane is powered to multiple motors 22 with the different power-on times of setting,
22 drive wing fin 21 of motor is relatively low incidence angular turn of the center of circle according to setting with support shaft 1, with 21 upper and lower side of rib piece
Surface contact the stress that changes the aerofoil of different parts with the change in angle of attack of rib piece 21 of elastic covering 3 it is big
It is small；
Similarly, when unmanned plane climbs to preset height, terrestrial operation person is issued by wireless control platform to unmanned plane
The pitch of propeller is adjusted to the signal of big pitch, so that propeller can obtain maximum having from engine under maximum (top) speed
With power, 22 drive wing fin 21 of motor is with the angle of attack that support shaft 1 is that the center of circle increases each position respectively on the basis of small pitch
Angle, angle of attack angle can accurately be controlled to each rib piece 21 by realizing, and accurately be adjusted to realize to the pitch of full wafer propeller
Whole control is optimal with flying quality to achieve the effect that take off.
Preferably, the support shaft 1 is equipped with multiple groups card slot 11, and the left and right two of rib piece 21 is arranged in every group of card slot 11
Side, rib piece 21 are located in support shaft 1 by the cooperation of card slot 11 and snap ring 12, and the ring body of snap ring 12 surrounds card slot 11,
21 left and right sides of rib piece is blocked in the part that the ring body of snap ring 12 stretches out card slot 11, has reached rib piece 21 in support shaft 1
The effect positioned in axial direction, snap ring 12 can be removably mounted in support shaft 1 using tool, reach the effect of convenient disassembly
Fruit.
Preferably, the second gear 221 is hollow worm screw, the end of 221 sets of the second gear rotating shafts in motor 22
On, realize the effect for mitigating overall weight.
Preferably, the rib piece 21 and first gear 211 are integrally formed, realize the convenient and fast effect of assembling.
Embodiment 2
On the basis of the variable-pitch propeller of embodiment 1, the utility model embodiment 2 provides a kind of unmanned plane, including such as
Variable-pitch propeller described in embodiment 1, unmanned plane provided in this embodiment are taking off and in-flight propulsive force is powerful to reaching
The effect of higher flying quality is met under high load operation state.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (8)
1. a kind of variable-pitch propeller, which is characterized in that the variable-pitch propeller include support shaft (1), multiple groups aerofoil profile support member (2) and
The inner end of elastic covering (3), support shaft (1) is connected with the propeller hub of aircraft, and multiple groups aerofoil profile support member (2) is evenly spaced arranged in
In support shaft (1), every group of aerofoil profile support member (2) includes rib piece (21) and the electricity for drive wing fin (21) adjustment angle of attack angle
Machine (22), rib piece (21) are equipped with through-hole, and rib piece (21) is covered on support shaft (1) by through-hole, and motor (22) setting is being propped up
It supports on axis (1), motor (22) is connected with the controller of aircraft, and the both ends of elastic covering (3) are respectively fitted over the interior of support shaft (1)
Aerofoil is formed on the rib piece (21) at outer both ends, rib piece (21) pulls elastic covering (3) to change and acts on elastic illiteracy
The air force on skin (3) surface.
2. a kind of variable-pitch propeller according to claim 1, which is characterized in that the support shaft (1) is equipped with multiple groups card
Slot (11), in the left and right sides of rib piece (21), rib piece (21) passes through card slot (11) and snap ring for every group of card slot (11) setting
(12) cooperation is located on support shaft (1), and the motor (22) is arranged on support shaft (1) by motor cabinet (23).
3. a kind of variable-pitch propeller according to claim 2, which is characterized in that the side of the rib piece (21) is equipped with the
The end of one gear (211), the rotating shaft of the motor (22) is equipped with second gear (221), second gear (221) and the first tooth
Take turns (211) engagement connection.
4. a kind of variable-pitch propeller according to claim 3, which is characterized in that the first gear (211) is worm gear, institute
Stating second gear (221) is worm screw.
5. a kind of variable-pitch propeller according to claim 4, which is characterized in that the second gear (221) is hollow snail
Bar.
6. a kind of variable-pitch propeller according to claim 3, which is characterized in that the rib piece (21) and first gear
(211) it is integrally formed.
7. a kind of variable-pitch propeller according to claim 2, which is characterized in that the motor cabinet (23) is L-shaped.
8. a kind of unmanned plane, which is characterized in that the unmanned plane includes such as variable-pitch propeller of any of claims 1-7
Paddle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822131160.6U CN209274885U (en) | 2018-12-18 | 2018-12-18 | A kind of variable-pitch propeller and unmanned plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822131160.6U CN209274885U (en) | 2018-12-18 | 2018-12-18 | A kind of variable-pitch propeller and unmanned plane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209274885U true CN209274885U (en) | 2019-08-20 |
Family
ID=67612065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822131160.6U Active CN209274885U (en) | 2018-12-18 | 2018-12-18 | A kind of variable-pitch propeller and unmanned plane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209274885U (en) |
-
2018
- 2018-12-18 CN CN201822131160.6U patent/CN209274885U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 76-45, Shenbei Road, Shenbei New District, Shenyang City, Liaoning Province 110000 Patentee after: Liaoning Dazhuang UAV Technology Co.,Ltd. Address before: No.76-43, Shenbei Road, Shenbei New District, Shenyang, Liaoning 110000 (gate a) Patentee before: LIAONING ZHUANGLONG UNMANNED AERIAL VEHICLE TECHNOLOGY Co.,Ltd. |