CN207374636U - A kind of detachable propeller for unmanned plane - Google Patents
A kind of detachable propeller for unmanned plane Download PDFInfo
- Publication number
- CN207374636U CN207374636U CN201721058972.1U CN201721058972U CN207374636U CN 207374636 U CN207374636 U CN 207374636U CN 201721058972 U CN201721058972 U CN 201721058972U CN 207374636 U CN207374636 U CN 207374636U
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- blade
- propeller
- propeller hub
- unmanned plane
- installation groove
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Abstract
A kind of detachable propeller for unmanned plane of the utility model.The propeller mainly includes blade, upper propeller hub, lower propeller hub；Propeller shank is put into the blade installation groove of lower propeller hub, and upper propeller hub is covered on lower propeller hub so that the blade installation groove of upper propeller hub is pressed on propeller shank.The utility model propeller arrangement is succinct, and blade and propeller hub can quickly be split, and transports and stores convenient for propeller.
Description
Technical field
The utility model is related to unmanned plane power technology fields, specifically a kind of detachable spiral for unmanned plane
Paddle.
Background technology
Unmanned plane is more and more applied to military and civilian field.Unmanned plane is because reconnaissance capability is strong, concealment
Can be good, cost-effective, mobility is good, no one was injured the features such as, there are important value and work in modern military operation
With, meanwhile, unmanned plane is also commonly used for performing communication relay, meteorological detection, disaster monitoring, environmental monitoring, mapping, geology
Many civil fields such as exploration, land utilization dynamic monitors, pesticide spraying, traffic control.
General civilian unmanned plane is mostly using motor-propeller as dynamical system.Modern high performance propeller generally uses
Carbon fiber foam layer technique manufactures, and the propeller mass that this technique manufactures is light, and intensity is high, and rotary inertia is small, and energy
Quickly manufacture various complex-curved propellers.Small propeller is generally integrally formed using integral processing, blade and propeller hub.
For large-size propeller generally using parts processing technique, then propeller hub and blade separate machined are connected by certain mode
It is combined into complete propeller.
Large-size propeller propeller hub is connected by screw bolts with blade at present.Three bolts hole are processed on every blade, are allowed to
It is connected respectively on propeller hub, forms complete propeller.This connection mode has the following disadvantages.1st, blade hole machined is complicated.
Blade is molded using composite processing, and drill precise holes have larger difficulty on the composite, and be easy to cause fibrous material point
The problems such as layer is removed, if connecting hole mismachining tolerance is larger, can break the dynamic balancing of ring propeller, cause vibrations, noise.2nd, stress
It is poor.Composite material drilling can break annulus fibrosis material continuity, and stress concentration is caused around bolt hole, reduce blade intensity.
3rd, dismount constant.Each blade at least needs three to be bolted, larger for leafy paddle dismounting workload, and being dismounted for multiple times can be led
Bolt hole damage is caused, influences propeller assembly precision and working performance.
Utility model content
Technical problem to be solved in the utility model is：It overcomes the deficiencies of the prior art and provide a kind of for unmanned plane
Detachable propeller；The propeller can be assembled quickly when needing work, when not working can fast quick-detach, facilitate fortune
Defeated and storage.
Technical solution is used by the utility model：A kind of detachable propeller for unmanned plane, including blade, on
Propeller hub, lower propeller hub；Propeller shank is put into the blade installation groove of lower propeller hub, and upper propeller hub is covered on lower propeller hub so that on
The blade installation groove of propeller hub is pressed on propeller shank.
The blade is process using carbon fiber foam core filled composite material technique.
The root profile of blade is rectangular, and propeller shank is machined with a circle and squeezes boss, which is pressed on by upper
Propeller hub, the propeller hub inner surface of lower propeller hub synthesis, bear the centrifugal force in blade rotary course.
The upper propeller hub is machining using duralumin material, and whole is in the circular ring shape of dipping and heaving, uniformly distributed on annulus
There is blade installation groove, blade installation groove is adapted with propeller shank
The lower propeller hub is machining using duralumin material, whole in circular ring shape, and blade installation is evenly equipped on annulus
Groove, blade installation groove are adapted with propeller shank；
Lightening hole is machined in the blade installation groove；Tightening platform is processed between adjacent blades installation groove,
On be machined with bolt hole.
Motor installing hole is machined among the lower propeller hub, for being connected with motor.
The utility model compared with prior art the advantages of be：
1) simple processing, good manufacturability.The propeller hub and blade of the utility model can be processed individually, and propeller hub uses machine
Machine-shaping.Blade is molded using composite material mould, without processing bolt hole.
2) propeller shank uniform force, the unbalance stress that conventional bolt is avoided to connect.Blade and propeller hub are contacted by face to be squeezed
Stress is pressed, is not required to through bolt power transmission, propeller shank uniform force, mechanical property is good.
3) fastener is few, and dismounting is rapid.Propeller hub is tightly attached to propeller shank by bolt, and average each blade only needs one
Bolt can be such that propeller hub uniformly compresses, and for bolt quantity far fewer than general blade type of attachment, propeller dismounting is rapider.
Description of the drawings
Fig. 1 is the paddle blade structure schematic diagram of the utility model.
Fig. 2 is the upper propeller hub structure diagram of the utility model.
Fig. 3 is the lower propeller hub structure diagram of the utility model
Fig. 4 is the propeller entirety assembling schematic diagram of the utility model.
Specific embodiment
A kind of detachable propeller for unmanned plane, by blade 3, upper propeller hub 2, lower propeller hub 4, bolt 1,5 five kinds of nut
Part forms.
Blade 3 is process using carbon fiber foam core filled composite material technique, and the root profile of blade 3 is rectangular, and
A circle is processed in the root of blade 3 and squeezes boss 7 for connecting stress.
Upper propeller hub 2 is machining using duralumin material, and whole is in the circular ring shape of dipping and heaving, and five are evenly distributed on annulus
Locate blade installation groove 8, blade installation groove 8 and the root of blade 3 are adapted.Lightening hole 10 is processed on groove.Adjacent recessed
Tightening platform is processed between slot, is machined with bolt hole 9 thereon.
Lower propeller hub is machining using duralumin material, whole in circular ring shape, and blade at five is evenly distributed on annulus and is installed
Groove 8, blade installation groove 8 and the root of blade 3 are adapted.Lightening hole 10 is processed on groove.It is processed between adjacent grooves
Tightening platform is machined with bolt hole 9 thereon.
Processing motor installing hole among lower propeller hub, for being connected with motor.
The bolt 1 and nut 5 use standard fasteners.
Operation principle：
When propeller is installed, the root of blade 3 is put into 3 installation groove of blade of lower propeller hub 4, upper propeller hub 2 is covered
On lower propeller hub 4 so that the blade installation groove 8 of upper propeller hub 2 is pressed on propeller shank, and a circle extruding of the root of blade 3 is convex
Platform 7 is pressed on propeller hub annulus inner surface, bears the centrifugal force in 3 rotary course of blade.
Claims (7)
1. a kind of detachable propeller for unmanned plane, it is characterised in that：Including blade (3), upper propeller hub (2), lower propeller hub
(4)；Blade (3) root is put into the blade installation groove of lower propeller hub (4), and upper propeller hub (2) is covered on lower propeller hub (4), is made
Blade (3) installation groove that propeller hub (2) must be gone up is pressed on blade (3) root.
2. a kind of detachable propeller for unmanned plane according to claim 1, it is characterised in that：The blade (3)
It is process using carbon fiber foam core filled composite material technique.
3. a kind of detachable propeller for unmanned plane according to claim 1 or 2, it is characterised in that：Blade (3)
Root profile is rectangular, and blade (3) root is machined with a circle and squeezes boss (7), which is pressed on by upper propeller hub
(2), the propeller hub inner surface of lower propeller hub (4) synthesis, bears the centrifugal force in blade (3) rotary course.
4. a kind of detachable propeller for unmanned plane according to claim 1, it is characterised in that：The upper propeller hub
(2) machining using duralumin material, whole is in the circular ring shape of dipping and heaving, and blade installation groove is evenly equipped on annulus
(8), blade installation groove (8) is adapted with blade (3) root.
5. a kind of detachable propeller for unmanned plane according to claim 1, it is characterised in that：The lower propeller hub
(4) it is machining using duralumin material, it is whole in circular ring shape, blade installation groove (8), blade installation are evenly equipped on annulus
Groove (8) is adapted with blade (3) root.
6. a kind of detachable propeller for unmanned plane according to claim 4 or 5, it is characterised in that：The blade
Lightening hole (10) is machined in installation groove (8)；Tightening platform is processed between adjacent blades installation groove (8), is processed thereon
There is bolt hole (9).
7. according to a kind of arbitrary detachable propeller for unmanned plane of claim 1 or 2 or 4 or 5, feature exists
In：Motor installing hole is machined among the lower propeller hub (4), for being connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721058972.1U CN207374636U (en) | 2017-08-23 | 2017-08-23 | A kind of detachable propeller for unmanned plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721058972.1U CN207374636U (en) | 2017-08-23 | 2017-08-23 | A kind of detachable propeller for unmanned plane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207374636U true CN207374636U (en) | 2018-05-18 |
Family
ID=62342034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721058972.1U Active CN207374636U (en) | 2017-08-23 | 2017-08-23 | A kind of detachable propeller for unmanned plane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207374636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110356542A (en) * | 2019-07-23 | 2019-10-22 | 安徽卓尔航空科技有限公司 | One kind having adjustable high-efficiency aerodynamic force propeller |
| CN110683049A (en) * | 2019-09-16 | 2020-01-14 | 南京航空航天大学 | Hub device for small-sized tilt rotor aircraft |
-
2017
- 2017-08-23 CN CN201721058972.1U patent/CN207374636U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110356542A (en) * | 2019-07-23 | 2019-10-22 | 安徽卓尔航空科技有限公司 | One kind having adjustable high-efficiency aerodynamic force propeller |
| CN110683049A (en) * | 2019-09-16 | 2020-01-14 | 南京航空航天大学 | Hub device for small-sized tilt rotor aircraft |
| CN110683049B (en) * | 2019-09-16 | 2022-07-12 | 南京航空航天大学 | Hub device for small-sized tilt rotor aircraft |
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