CN106043671A - Variable pitch propeller and aerial vehicle with same - Google Patents
Variable pitch propeller and aerial vehicle with same Download PDFInfo
- Publication number
- CN106043671A CN106043671A CN201610535879.9A CN201610535879A CN106043671A CN 106043671 A CN106043671 A CN 106043671A CN 201610535879 A CN201610535879 A CN 201610535879A CN 106043671 A CN106043671 A CN 106043671A
- Authority
- CN
- China
- Prior art keywords
- propeller
- blade
- support shaft
- slide opening
- bumping post
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/32—Blade pitch-changing mechanisms mechanical
- B64C11/34—Blade pitch-changing mechanisms mechanical automatic
- B64C11/343—Blade pitch-changing mechanisms mechanical automatic actuated by the centrifugal force or the aerodynamic drag acting on the blades
Abstract
A variable pitch propeller and an aerial vehicle with the same are provided; the variable pitch propeller is constructed by fixed assembly of screws and a motor (16), the variable pitch propeller is driven by the motor (16) to rotate, and blades (1) generate centrifugal force; propeller roots (2) overcome tension of springs (12) to rotate and slide out under the action of the centrifugal force of the blades (1) with spiral slide holes (4) control slide paths of retaining posts (5), during sliding of the propeller roots (2), angles of attack of the blades (1) change when the spiral slide holes (4) control sliding directions of the retaining posts (5); synchronous shafts (15) on all synchronous sleeves of the same propeller are inserted into slide holes (7) of a same synchronizer (6), so that a synchronous shaft (15) shifts the synchronizer (6) only when all the propeller roots (2) on the same propeller rotate at the same time and centrifugally move off at the same time.
Description
Technical field
The present invention relates to aircraft field, particularly to a kind of variable-pitch propeller and the aircraft assembling this device.
Background technology
It is known that helicopter is all flown by propeller with gyroplane, the wind loading rating of multiaxis gyroplane is far below straight
The machine of liter, helicopter uses pitch propeller, is the pitch lift fuselage by changing propeller, and multiaxis gyroplane is adopted
Be fixing propeller, so aircraft can only be promoted, if pitch propeller is installed to multiaxis by changing motor speed
Though wind resistance power can be improved on gyroplane due to pitch propeller arrangement complexity also can to aircraft increase a lot of unstable because of
Element.The propeller of helicopter is the most complicated in a word, and the propeller of multiaxis gyroplane again can not displacement.
Summary of the invention
Present invention aim to address the deficiency of above-mentioned technology, it is provided that a kind of simple in construction automatic away from propeller with
It is equipped with the aircraft of this device.
For achieving the above object, the present invention is by the following technical solutions.
The centrifugal force that described variable-pitch propeller relies on blade to produce when rotating changes pitch, and described variable-pitch propeller is by blade
Forming with pitch-changing mechanism, pitch-changing mechanism is made up of with lock unit blade root, propeller hub, support shaft, interstage sleeve, bumping post spring part.
Described propeller hub is fixed for propeller and rotor or power transmission shaft and is connected, for blade root interstage sleeve shelves post and spring part
Terminal assemble, propeller hub is provided with female hole and Tong Bu hole, described is provided with spiral slide opening, spiral slide opening and mother hole phase at propeller hub
Logical.
Described blade root is the root of propeller blade, and one end of described blade root is provided with support shaft or is equipped with support shaft, institute
Stating support shaft is to support the part of blade root and blade for being inserted in female hole.
Described assembling in support shaft has been inserted in spring part and interstage sleeve, the described bumping post hole that is provided with in support shaft, bumping post hole
Effect be used for assembling bumping post, described support shaft is provided with boss or fixing is equipped with boss, and boss is used for stopping spring part, institute
State and be provided with on boss or be equipped with synchronizing shaft.Injecting female hole after described support shaft assembling spring part and interstage sleeve, interstage sleeve is by jackscrew
Fix with propeller hub, the internal diameter of interstage sleeve and the tight sliding fit of support shaft external diameter.
Described support rim one end, spring part one end being enclosed within support shaft supports interstage sleeve, and the effect of spring part is used for blade root
Reset.
The effect of described lock unit is equal for the delta data controlling N blade on same propeller, changes number
According to including blade change in angle of attack data and blade variable elongation data.Described lock unit is provided with slide opening, the synchronization in support shaft
Axle also can slide in injecting slide opening.
The assembly relation of described variable-pitch propeller of the present invention: lock unit loads in synchronization hole, and can come synchronizing Kong Kongzhong
Return and slide；The described spring part that successively overlaps in support shaft fixes assembly connection with blade root after interstage sleeve；Support shaft assembling spring
Part injects female Kong Zhonghou of propeller hub with interstage sleeve, and interstage sleeve is bolted on blade root, and bumping post is then occupied through spiral slide opening by jackscrew
In be fixed in support shaft.
Described bumping post is after being assembled in support shaft, and bumping post head coincidence is stuck in spiral slide opening, and described bumping post head can be at spiral shell
Rotation slide opening slides.Described spiral slide opening can control the sliding trace of bumping post, so bumping post is in spiral slide opening slidably reciprocates
Promote blade root to rotate under the control of spiral slide opening, the rotation of blade root thus drive blade to rotate and make the blade angle of attack change.
Described support shaft assembling spring part and interstage sleeve inject female Kong Zhonghou of propeller hub, and the synchronizing shaft in support shaft injects just
In the slide opening of lock unit.
The present invention separately provides a kind of aircraft, and described aircraft at least configures a set of above-mentioned variable-pitch propeller.
Described variable-pitch propeller is fixed assembling through propeller hub by screw and motor, and described variable-pitch propeller is at the band of motor
Dynamic lower rotation, blade produces centrifugal.Described blade root spiral slide opening control bumping post sliding trace in the case of, blade from
Overcoming the outside rotational slide of spring part tension force under mental power function, in the slip of blade root, the blade angle of attack controls gear at spiral slide opening
Change under the glide direction of post.
Rotating speed reduces, the centrifugal force of blade reduces, and under the support of spring part, blade root becomes along the support shaft reset blade angle of attack
Little.
Synchronizing shaft on all synchronizing sleeves of described same propeller is all inserted in the slide opening of same lock unit, institute
Rotate the most at the same time with the blade root of same propeller, simultaneously centrifugal outer when moving synchronizing shaft could to stir lock unit sliding simultaneously
Dynamic, thus lock unit thus control each blade angle of attack of same propeller with identical data variation.
It is an advantage of the current invention that.
1, simple in construction.
2, motor load, using electricity wisely, prolongation continuation of the journey are reduced.
3, automatically away from, without any displacement drive mechanism.
4, sturdy durable.
5, change conveniently.
6, wind resistance is improved.
8, it is suitable for old machine constant pitch airscrew upgrading to become away from propeller.
Accompanying drawing explanation
With embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the perspective exploded view of variable-pitch propeller of the present invention.
Fig. 2 is the generalized section of the pitch-changing mechanism of variable-pitch propeller of the present invention.
Fig. 3 is the schematic perspective view of the pitch-changing mechanism that the propeller hub of variable-pitch propeller of the present invention is transparent.
Fig. 4 is the schematic perspective view before variable-pitch propeller displacement of the present invention.
Fig. 5 is the schematic perspective view after variable-pitch propeller displacement of the present invention.
In figure, blade (1), blade root (2), propeller hub (3), spiral slide opening (4), bumping post (5), lock unit (6), slide opening (7), with
Step hole (8), female hole (9), boss (10), support shaft (11)) spring part (12), interstage sleeve (13), jackscrew (14), synchronizing shaft (15),
Motor (16).
Detailed description of the invention
The centrifugal force that described variable-pitch propeller relies on blade (1) to produce when rotating changes pitch, and described variable-pitch propeller is by blade
(1) forming with pitch-changing mechanism, pitch-changing mechanism is by blade root (2), propeller hub (3), support shaft (11), interstage sleeve (13), bumping post (5) spring part
(12) form with lock unit (6).
Described propeller hub (3) is fixed for propeller and motor (16) rotor or power transmission shaft and is connected, for blade root (2) interstage sleeve
(13) shelves post assembles with the terminal of spring part (12), and propeller hub (3) is provided with female hole (9) and Tong Bu hole (8), described in propeller hub (3)
Being provided with spiral slide opening (4), spiral slide opening (4) communicates with female hole (9).
Described blade root (2) is the root of propeller blade (1), and one end of described blade root (2) is provided with support shaft (11) or dress
Being furnished with support shaft (11), described support shaft (11) is to support the part of blade root (2) and blade (1) for being inserted in female hole (9).
Described it is inserted in spring part (12) and interstage sleeve (13) in the upper assembling of support shaft (11), described has set in support shaft (11)
Having bumping post (5) hole, the effect in bumping post (5) hole to be used for assembling bumping post (5), described support shaft (11) is provided with boss (10) or fixing
Being equipped with boss (10), boss (10) is used for stopping spring part (12), described be provided with on boss (10) or be equipped with synchronizing shaft
(15).Described support shaft (11) assembling spring part (12) and interstage sleeve (13) inject female hole (9) afterwards, interstage sleeve (13) by jackscrew (14) and
Propeller hub (3) is fixed, the internal diameter of interstage sleeve (13) and the tight sliding fit of support shaft (11) external diameter.
Described support rim (10) one end, spring part (12) one end being enclosed within support shaft (11) supports interstage sleeve (13), spring
The effect of part (12) resets for blade root (2).
The effect of described lock unit (6) is equal for the delta data controlling N the blade (1) on same propeller,
Delta data includes blade (1) change in angle of attack data and blade (1) variable elongation data.Described lock unit (6) is provided with slide opening
(7) also can slide in, the synchronizing shaft (15) in support shaft (11) can inject slide opening (7).
The assembly relation of described variable-pitch propeller of the present invention: lock unit (6) loads in synchronization hole (8), and hole can synchronized
(8) hole slidably reciprocates；The described spring part (12) that successively puts in support shaft (11) is fixed with blade root (2) afterwards with interstage sleeve (13)
Assembly connection；After support shaft (11) assembling spring part (12) injects in female hole (9) of propeller hub (3) with interstage sleeve (13), interstage sleeve (13)
Being bolted on blade root (2), bumping post (5) is then fixed on support shaft (11) through spiral slide opening (4) by jackscrew (14) between two parties
On.
Described bumping post (5) is after being assembled in support shaft (11), and bumping post (5) head coincidence is stuck in spiral slide opening (4), described
Bumping post (5) head can slide in spiral slide opening (4).Described spiral slide opening (4) can control the sliding trace of bumping post (5), so
Bumping post (5) promotes blade root (2) to rotate in spiral slide opening (4) slidably reciprocates under the control of spiral slide opening (4), blade root (2)
Rotate thus drive blade (1) to rotate and make blade (1) angle of attack change.
After described support shaft (11) assembling spring part (12) injects in female hole (9) of propeller hub (3) with interstage sleeve (13), support shaft
(11) synchronizing shaft (15) on injects in the slide opening (7) of lock unit (6) just.
The present invention separately provides a kind of aircraft, and described aircraft at least configures a set of above-mentioned variable-pitch propeller.
Described variable-pitch propeller is fixed assembling through propeller hub (3) by screw and motor (16), and described variable-pitch propeller exists
Rotating under the drive of motor (16), blade (1) produces centrifugal.Described blade root (2) controls the cunning of bumping post (5) at spiral slide opening (4)
In the case of dynamic track, under the centrifugal action of blade (1), overcome the outside rotational slide of spring part (12) tension force, at blade root
(2), in slip, blade (1) angle of attack changes under spiral slide opening (4) controls the glide direction of bumping post (5).
Rotating speed reduces, the centrifugal force of blade (1) reduces, and under the support of spring part (12), blade root (2) reset blade (1) is met
Angle diminishes.
Synchronizing shaft (15) on all synchronizing sleeves of described same propeller is all inserted into the cunning in same lock unit (6)
In hole (7), so synchronizing shaft (15) the ability when blade root of same propeller (2) moves outside rotating the most at the same time, being centrifuged simultaneously
Stir lock unit (6) simultaneously, thus lock unit (6) thus control each blade (1) angle of attack of same propeller with identical
Data variation.
Claims (2)
1. a variable-pitch propeller, it is characterised in that: the centrifugal force that described variable-pitch propeller relies on blade to produce when rotating changes
Pitch, described variable-pitch propeller is made up of with pitch-changing mechanism blade, and pitch-changing mechanism is by blade root, propeller hub, support shaft, interstage sleeve, bumping post
Spring part forms with lock unit；
Described propeller hub is fixed with rotor or power transmission shaft for propeller and is connected, for end of blade root interstage sleeve shelves post Yu spring part
End assembles, and propeller hub is provided with female hole and Tong Bu hole, described is provided with spiral slide opening at propeller hub, and spiral slide opening communicates with mother hole；
Described blade root is the root of propeller blade, and one end of described blade root is provided with support shaft or is equipped with support shaft, described
Support axle is the part supporting blade root and blade for being inserted in female hole；
Described assembling in support shaft has been inserted in spring part and interstage sleeve, the described bumping post hole that is provided with in support shaft, the work in bumping post hole
With being used for assembling bumping post, described support shaft is provided with boss or fixing is equipped with boss, and boss is used for stopping spring part, described
Boss is provided with or is equipped with synchronizing shaft；Injecting female hole after described support shaft assembling spring part and interstage sleeve, interstage sleeve is by jackscrew and oar
Hub is fixed, the internal diameter of interstage sleeve and the tight sliding fit of support shaft external diameter；
Described support rim one end, spring part one end being enclosed within support shaft supports interstage sleeve, and the effect of spring part is multiple for blade root
Position；
The effect of described lock unit is equal for the delta data controlling N blade on same propeller, delta data bag
Include blade change in angle of attack data and blade variable elongation data；Described lock unit is provided with slide opening, the synchronizing shaft energy in support shaft
Also can slide in injecting slide opening；
The assembly relation of described variable-pitch propeller of the present invention: lock unit loads in synchronization hole, and can slide back and forth synchronizing Kong Kongzhong
Dynamic；The described spring part that successively overlaps in support shaft fixes assembly connection with blade root after interstage sleeve；Support shaft assembling spring part with
Interstage sleeve injects female Kong Zhonghou of propeller hub, and interstage sleeve is bolted on blade root, and bumping post is then solid between two parties by jackscrew through spiral slide opening
It is scheduled in support shaft；
Described bumping post is after being assembled in support shaft, and bumping post head coincidence is stuck in spiral slide opening, and described bumping post head can be at spiral slide
Slide in hole；Described spiral slide opening can control the sliding trace of bumping post, thus bumping post in spiral slide opening slidably reciprocates at spiral shell
Promote blade root to rotate under the control of rotation slide opening, the rotation of blade root thus drive blade rotation to make the blade angle of attack change；
Described support shaft assembling spring part and interstage sleeve inject female Kong Zhonghou of propeller hub, and the synchronizing shaft in support shaft injects synchronization just
In the slide opening of device.
2. an aircraft, it is characterised in that: described aircraft at least configures the displacement spiral shell described in a set of the claims 1-3
Rotation oar；
Described variable-pitch propeller is fixed assembling through propeller hub by screw and motor, and described variable-pitch propeller is under the drive of motor
Rotating, blade produces centrifugal；Described blade root is in the case of spiral slide opening controls the sliding trace of bumping post, at the centrifugal force of blade
Overcoming the outside rotational slide of spring part tension force under effect, in the slip of blade root, the blade angle of attack controls bumping post at spiral slide opening
Change under glide direction；
Synchronizing shaft on all synchronizing sleeves of described same propeller is all inserted in the slide opening of same lock unit, so with
When the rotation the most at the same time of the blade root of one propeller, centrifugal outer shifting simultaneously, synchronizing shaft could stir lock unit simultaneously, so with
Walk device thus control each blade angle of attack of same propeller with identical data variation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610535879.9A CN106043671A (en) | 2016-07-09 | 2016-07-09 | Variable pitch propeller and aerial vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610535879.9A CN106043671A (en) | 2016-07-09 | 2016-07-09 | Variable pitch propeller and aerial vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106043671A true CN106043671A (en) | 2016-10-26 |
Family
ID=57185825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610535879.9A Pending CN106043671A (en) | 2016-07-09 | 2016-07-09 | Variable pitch propeller and aerial vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106043671A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107140199A (en) * | 2017-05-27 | 2017-09-08 | 昆山优尼电能运动科技有限公司 | Portable unmanned machine, blade runner assembly, rotation system and its assemble method |
| CN108657418A (en) * | 2018-06-06 | 2018-10-16 | 中国船舶重工集团公司第七〇九研究所 | A kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked |
| WO2019056892A1 (en) * | 2017-09-25 | 2019-03-28 | Qingdao Randall Aerodynamic Engineering, Llc | Pitch control system |
-
2016
- 2016-07-09 CN CN201610535879.9A patent/CN106043671A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107140199A (en) * | 2017-05-27 | 2017-09-08 | 昆山优尼电能运动科技有限公司 | Portable unmanned machine, blade runner assembly, rotation system and its assemble method |
| WO2019056892A1 (en) * | 2017-09-25 | 2019-03-28 | Qingdao Randall Aerodynamic Engineering, Llc | Pitch control system |
| KR20200067847A (en) * | 2017-09-25 | 2020-06-12 | 칭다오 유니버시티 | Pitch control system |
| EP3687896A4 (en) * | 2017-09-25 | 2021-06-16 | Qingdao University | Pitch control system |
| KR102458953B1 (en) | 2017-09-25 | 2022-10-27 | 칭다오 유니버시티 | pitch control system |
| CN108657418A (en) * | 2018-06-06 | 2018-10-16 | 中国船舶重工集团公司第七〇九研究所 | A kind of multi-rotor aerocraft folding paddle unfolding mechanism that flexible can be locked |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |