CN108621725A - A kind of foldable propeller - Google Patents
A kind of foldable propeller Download PDFInfo
- Publication number
- CN108621725A CN108621725A CN201810436218.XA CN201810436218A CN108621725A CN 108621725 A CN108621725 A CN 108621725A CN 201810436218 A CN201810436218 A CN 201810436218A CN 108621725 A CN108621725 A CN 108621725A
- Authority
- CN
- China
- Prior art keywords
- blade
- sheave
- locating
- paddle lid
- clockwork spring
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F5/00—Other convertible vehicles, i.e. vehicles capable of travelling in or on different media
- B60F5/02—Other convertible vehicles, i.e. vehicles capable of travelling in or on different media convertible into aircraft
-
- 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
- B64C11/16—Blades
- B64C11/20—Constructional features
- B64C11/28—Collapsible or foldable blades
Abstract
A kind of foldable propeller.It is characterized in that：With components such as the first and second blade, outer paddle lid, interior paddle lid, the first clockwork spring, the second clockwork spring, the first sheave, the second sheave, third sheave, the 4th sheave, the 5th sheave, the first hauling rope, the second hauling rope, the first pneumatic pull rod, the second pneumatic pull rods；First and second blade is equipped with mounting bracket, mounting bracket is clipped between outer paddle lid, interior paddle lid and is articulated and connected, the middle section of interior paddle lid is equipped with horizontal connection cylinder, and the inside of horizontal connection cylinder is located at by the spiral power spring storaging energy device that the 5th sheave, 5th bearing, 6th bearing, the first clockwork spring, the second clockwork spring and main shaft are constituted.The blade of this kind of propeller is foldable, and spiral power spring storaging energy service using life is long, environment friendly and pollution-free, while space needed for the storage of land sky automobile can be made to reduce, and in addition can be individually replaced the blade of damage, save maintenance cost；Effective protection can be obtained in propeller after folding simultaneously in vehicle traveling process.
Description
Technical field
The present invention relates to a kind of foldable propellers.
Background technology
For the thrust propeller of the land and air double-used automobile of rotary wind type, current manufacture craft is that leafy paddle is integrally formed, one
The leafy paddle structure weight weight of body formula, manufacturing cost are higher.The land and air double-used automobile of rotary wind type using integral type two blade propeller when,
Once multi-blade propeller then needs replacing entire two blade propeller wherein a piece of damage；It is simultaneously the power of guarantee land sky automobile
Property, the paddle blade structure for generally requiring propeller is sized to very greatly, land sky automobile thus can be caused right when driving on highway
Other vehicles cause to interfere, and block the traffic.
Invention content
The technical issues of in order to solve to be previously mentioned in background technology, the present invention provide a kind of collapsible, inexpensive, low-carbon ring
It protects, propeller with long service life, propeller blade is foldable.
The technical scheme is that：This kind of foldable propeller has the first blade, the second blade, outer paddle lid, interior paddle
Lid, the first Pneumatic power support lever, the second Pneumatic power support lever and spiral power spring storaging energy device, first blade, the second blade are equipped with peace
End is filled, the installation end is bolted by blade locating rack with blade, by the peace of first blade, the second blade
Dress end be clipped between outer paddle lid, interior paddle lid, first blade, the second blade installation end and outer paddle lid, interior paddle lid hingedly connect
Connect, the outer paddle lid, interior paddle lid middle section be equipped with horizontal connection cylinder, bolt is evenly distributed on the horizontal connection cylinder and is pacified
Dress hole and horizontal connection cylinder is internally provided with spiral power spring storaging energy device.
Further, the installation end of first blade and the connection type of upper paddle lid, interior paddle lid are：First small shaft according to
It is secondary across the first bearing of outer paddle lid left end, the first sheave, the first blade, the through-hole of installation end, the second sheave, interior paddle lid left end
Second bearing；
The installation end of second blade and the connection type of upper paddle lid, interior paddle lid are：Second small shaft sequentially passes through outer paddle lid
The 3rd bearing of left end, the fourth bearing of third sheave, the first blade, the through-hole of installation end, the 4th sheave, interior paddle lid left end.
Further, the spiral power spring storaging energy device is by the 5th sheave, 5th bearing, 6th bearing, the first clockwork spring, the second hair
Item and main shaft composition, main shaft sequentially pass through 5th bearing, the first clockwork spring, the 5th sheave, the second clockwork spring, 6th bearing,
In the first clockwork spring, two mounted in the first clockwork spring mounting hole, two and main shaft between.
Further, it is connected by the first hauling rope between the 5th sheave and the first sheave, first hauling rope
One end be fixed on the first sheave, the other end is fixed on the 5th sheave.
Further, it is connected by the second hauling rope between the 5th sheave and third sheave, second hauling rope
One end be fixed on third sheave, the other end is fixed on the 5th sheave.
Further, the interior paddle is covered with the first locating shaft of clockwork spring, the second locating shaft, and the first locating rack bottom is equipped with the
One rubber locating piece, second locating rack bottom are equipped with the second rubber locating piece.
Further, first Pneumatic power support lever bottom end is socketed on the first locating shaft, the other end and the first blade tail
End is connected by bolted splice；Second Pneumatic power support lever bottom end is socketed on the second locating shaft, the other end and the second blade
Tail end is connected by bolted splice.
The present invention has the advantages that：The die manufacturing cost of the present invention is low.The propeller blade of the present invention can be rolled over
It is folded, so that space needed for the storage of land sky automobile is reduced；A piece of damaged in first blade, the second blade does not have to as integral type double leaf
Propeller replaces entire blade on motor like that, saves maintenance cost；Propeller after folding simultaneously also can be well in automobile
Play the role of protecting the first blade, the second blade in driving process；Last spiral power spring storaging energy service using life is long, environmentally friendly without dirt
Dye greatly improves the service efficiency for folding propeller.
Description of the drawings：
Fig. 1 is the mounting structure schematic diagram of the present invention and engine output shaft；
Fig. 2 and Fig. 3 is the first blade of the present invention, the second blade respectively in the schematic diagram under folding and unfolded state；
Fig. 4 is structure of the invention decomposition diagram；
Fig. 5 is the side sectional view of the present invention；
Fig. 6 is the partial enlarged view at the first blades of Fig. 5；
Fig. 7 is the horizontal connection cylinder interior partial enlarged views of Fig. 5；
Fig. 8 is the structural schematic diagram of Pneumatic power support lever in the present invention.
The first blades of 1- in figure；The second blades of 2-；3- engine output shafts；The outer paddle lids of 4-；Paddle lid in 5-；The big end caps of 6-；
The first small end covers of 7-；8- third small end covers；The first hauling ropes of 9-；The second hauling ropes of 10-；The second locating racks of 11-；12- first is fixed
Position frame；13- the second rubber locating pieces；14- the first rubber locating pieces；The second locating shafts of 15-；The first clockwork springs of 16-；17- first axles
It holds；The first sheaves of 18-；The first Pneumatic power support levers of 19-；The second sheaves of 20-；21- second bearings；The second small end covers of 22-；23-
One locating shaft；The horizontal connection cylinders of 24-；25- clockwork spring mounting holes；The 4th small end covers of 26-；27- fourth bearings；The 4th sheaves of 28-；
The second Pneumatic power support levers of 29-；30- third sheaves；31- 3rd bearings；The second small shafts of 32-；33 first small shafts；34- the 5th
Sheave；The first positioning jump rings of 35-；36- main shafts；37- 5th bearings；The second positioning jump rings of 38-；39- 6th bearings；40-
Two clockwork springs；41- piston rods；42- cylinder barrels.
Specific implementation mode：
The invention will be further described below in conjunction with the accompanying drawings：
Shown in as shown in Figure 1, Figure 2, this kind of foldable propeller has the first blade 1, the second blade 2, outer paddle lid 4, interior paddle lid
5, the first Pneumatic power support lever 19, the second Pneumatic power support lever 29 and spiral power spring storaging energy device.First blade 1, the second blade 2 are set respectively
There are the first locating rack 12 and the second locating rack 11, locating rack is bolted with blade, the first blade 1, the second blade 2
Installation end be clipped between outer paddle lid 4, interior paddle lid 5 first locating rack 12 and the second locating rack 11 and cut with scissors with outer paddle lid 4, interior paddle lid 5
Connect in succession, the outer paddle lid 4, interior paddle lid 5 middle section be equipped with horizontal connection cylinder 24, be evenly distributed on horizontal connection cylinder 24
Bolt mounting holes, spiral power spring storaging energy device are located at the inside of horizontal connection cylinder 24.
The connection type of first locating rack 12 and outer paddle lid 4, interior paddle lid 5 is：First small shaft 33 sequentially passes through outer paddle lid 4
The first bearing 17 of left end, the first sheave 18, the first blade 1, the through-hole of installation end, the second sheave 20, interior paddle lid 5, left end
Second bearing 21, in engine rotation, due to the effect of centrifugal force, the first blade 1 is rotated around 33 axis of the first small shaft.
The connection type of first locating rack 11 and outer paddle lid 4, interior paddle lid 5 is：Second small shaft 32 sequentially passes through outer paddle lid 4
The 3rd bearing 31 of left end, the of third sheave 30, the first blade 1, the through-hole of installation end, the 4th sheave 28, interior 5 left end of paddle lid
Four bearings 27, in engine rotation, due to the effect of centrifugal force, the second blade 2 is rotated around 2 32 axis of bolt.
Spiral power spring storaging energy device includes the 5th sheave 34,5th bearing 37,6th bearing 39, the first clockwork spring 16, the second clockwork spring
40 and main shaft 36, the main shaft 36 sequentially pass through 5th bearing 37, the first clockwork spring 6, the 5th sheave 34, the second clockwork spring 40,
6th bearing 39, wherein the first clockwork spring 16, the second clockwork spring 40 are attached separately to the first clockwork spring mounting hole 25, the second clockwork spring mounting hole 43
Between main shaft 36, when main shaft rotates, the first clockwork spring 16, the second clockwork spring 40 start to tighten.
It is connected by the first hauling rope 9 between 5th sheave 34 and the first sheave 18, one end of the first hauling rope 9 is fixed on
On first sheave 18, the other end is fixed on the 5th sheave 34, can the first blade 1 be rotated the kinetic energy generated and be passed through hauling rope
It is transmitted to spiral power spring storaging energy device and is converted into elastic potential energy, spiral power spring storaging energy device, which releases energy, in engine stop makes hauling rope produce
Raw pulling force moves the first blade 1 to original position.
It is connected by the second hauling rope 10 between 5th sheave 34 and third sheave 30, one end of second hauling rope 10
It is fixed on third sheave 30, the other end is fixed on the 5th sheave 34, can the second blade 2 be rotated the kinetic energy generated and passed through
Hauling rope is transmitted to spiral power spring storaging energy device and is converted into elastic potential energy, and in engine stop, spiral power spring storaging energy device, which releases energy, makes to lead
Straw line generates pulling force and moves the second blade 2 to original position.
Interior paddle lid 5 is equipped with the first locating shaft 23, the second locating shaft 15, and 12 bottom of the first locating rack is equipped with the first rubber
Locating piece 14,11 bottom of the second locating rack are equipped with the second rubber locating piece 13；In the first blade 1, the expansion of the second blade 2
First rubber locating piece 14, the second rubber locating piece 13 are in contact with the first locating shaft 23, the second locating shaft 15 respectively, it is ensured that two
Blade is in collinear position；When folding the first blade 1, the second blade 2 to abut against the first locating shaft 23, second fixed on interior edge
On the axis 15 of position.
First Pneumatic power support lever, 19 bottom end is socketed on the first locating shaft 23, and the other end and 1 tail end of the first blade pass through spiral shell
Bolt is articulated and connected；Second Pneumatic power support lever, 29 bottom end is socketed on the second locating shaft 15,2 tail end of the other end and the second blade
It is connected by bolted splice.When blade has been unfolded, Pneumatic power support lever extends and plays support to the first blade 1, the second blade 2 and makees
With when needing blade to fold, Pneumatic power support lever sheds support force, with the rotation piston rod meeting of the first blade 1, the second blade 2
It progresses into cylinder barrel, the first Pneumatic power support lever 19, the change 29 of the second Pneumatic power support lever are short.
The expansion process of the present invention：Engine output shaft 3 starts to rotate after the engine started, due to the work of centrifugal force
With around the rotation of 33 axis of the first small shaft, the second blade 2 turns at symmetrical end around 32 axis of the second small shaft the first blade 1 simultaneously
It is dynamic；Since the first sheave 18, third sheave 30 are connect with the first small shaft 33,32 interference of the second small shaft respectively, the first sheave
18 and second sheave 20 can be rotated together respectively with the first small shaft 33, the second small shaft 32, the 5th sheave 34 and the first sheave
It is connected, is connected by the second hauling rope 10 between the 5th sheave 34 and third sheave 30, first by the first hauling rope 9 between 18
Hauling rope 9 and the second hauling rope 10 pull the rotation of the 5th sheave 34 jointly, and the 5th sheave 34 with 36 interference of main shaft by connecting
Main shaft is set to rotate, the first clockwork spring 16 and the second clockwork spring 40 on main shaft 36 gradually tighten；At the same time, it is unfolded in blade
During, the first Pneumatic power support lever 19 and the second Pneumatic power support lever 29 also can be with the first blade 1, the second blade 2 rotation difference
It is rotated around the first locating shaft 23 and the second locating shaft 15, the piston rod 41 of the first Pneumatic power support lever 19 and the second Pneumatic power support lever 19
Piston rod 41 also can gradually extend；Until the first blade 1 and the second blade 2 are fully deployed, i.e. the first blade 1 and the second blade
2 it is conllinear when, the first rubber locating piece 14 and the second rubber locating piece 13 connect with the first locating shaft 23, the second locating shaft 15 respectively
It touches, the branch that the first blade 1 and the second blade 2 can be provided in the first Pneumatic power support lever 19 and the second Pneumatic power support lever 29 respectively at this time
Unfolded state is kept under support force.
The folding process of the present invention：When engine stop provides power, engine output shaft 3 tapers off rotation, this
When, the first Pneumatic power support lever 19 first and the second Pneumatic power support lever 29 can lay down support force, the first clockwork spring 16 and the second clockwork spring 40
The elastic potential energy of storage all discharges that main shaft 36 is driven to rotate；Then the 5th sheave 34 on main shaft 36 can turn with main
The rotation of axis 36 makes the first hauling rope 9 and the second hauling rope 10 be wound on the 5th sheave 34, the first hauling rope 9 and the second hauling rope
10 pull the first sheave 18 and third sheave 30 to rotate respectively, to make the first small shaft 33 and the second small shaft 32 rotate；Most
The first blade 1 and the second blade 2 can be rotated with the first small shaft 33 and the second small shaft 32 around respective axis respectively afterwards, in blade
The piston rod 41 of Pneumatic power support lever can be gradually shortened into cylinder barrel 42 during rotation, until the first blade 1 and the second paddle
Along leaning against on locating shaft in leaf 2, clockwork spring still has elastic potential energy at this time.
Claims (1)
1. a kind of foldable propeller has the first blade（1）, the second blade（2）, outer paddle lid（4）With interior paddle lid（5）, special
Sign is：The foldable propeller further includes the first Pneumatic power support lever（19）, the second Pneumatic power support lever（29）And spiral power spring storaging energy
Device, the spiral power spring storaging energy device, the first blade（1）With the second blade（2）On be respectively equipped with the first locating rack（12）With second
Locating rack（11）, first locating rack（12）, the second locating rack（11）Bottom be respectively equipped with the first rubber locating piece（14）
With the second rubber locating piece（13）；First locating rack（12）, the second locating rack（11）It is bolted respectively with blade,
First locating rack（12）, the second locating rack（11）It is clipped in outer paddle lid respectively（4）With interior paddle lid（5）Between, the first locating rack
（12）, the second locating rack（11）Respectively with outer paddle lid（4）, interior paddle lid（5）Articulated connection；
The interior paddle lid（5）Equipped with the first locating shaft（23）With the second locating shaft（15）；In the first blade（1）, the second blade（2）
When expansion, the first rubber locating piece（14）, the second rubber locating piece（13）Respectively with the first locating shaft（23）, the second locating shaft
（15）It is in contact, to ensure the first blade（1）, the second blade（2）In collinear position；The first blade when folding（1）, second
Blade（2）Interior edge respectively against in the first locating shaft（23）, the second locating shaft（15）On；
First locating rack（12）With outer paddle lid（4）, interior paddle lid（5）Connection type be the first small shaft（33）It wears successively
Cross outer paddle lid（4）The first bearing of left end（17）, the first sheave（18）, the first blade（1）, first locating rack through-hole,
Second sheave（20）, interior paddle lid（5）With the second bearing of left end（21）, to realize in engine rotation, due to centrifugal force
Effect, the first blade（1）It can be around the first small shaft（33）Do axis rotation；
Second locating rack（11）With outer paddle lid（4）, interior paddle lid（5）Connection type be the second small shaft（32）It wears successively
Cross outer paddle lid（4）The 3rd bearing of left end（31）, third sheave（30）, the first blade（1）, second locating rack through-hole,
4th sheave（28）, interior paddle lid（5）The fourth bearing of left end（27）, to realize in engine rotation, due to the work of centrifugal force
With the second blade（2）It can be around the second small shaft（32）Do axial-movement；
The outer paddle lid（4）, interior paddle lid（5）Middle section be equipped with horizontal connection cylinder（24）, horizontal connection cylinder（24）It is upper uniform
Bolt mounting holes are distributed with, the spiral power spring storaging energy device is located at horizontal connection cylinder（24）Inside；
The spiral power spring storaging energy device includes the 5th sheave（34）, 5th bearing（37）, 6th bearing（39）, the first clockwork spring（16）、
Second clockwork spring（40）And main shaft（36）；Wherein, the main shaft（36）Sequentially pass through 5th bearing（37）, the first clockwork spring（6）、
5th sheave（34）, the second clockwork spring（40）, 6th bearing（39）, wherein the first clockwork spring（16）With the second clockwork spring（40）It is attached separately to
First clockwork spring mounting hole（25）, the second clockwork spring mounting hole（43）With main shaft（36）Between, when the main shaft rotates, first
Clockwork spring（16）With the second clockwork spring（40）Start to tighten；
5th sheave（34）With the first sheave（18）Between pass through the first hauling rope（9）Connection, first hauling rope（9）
One end be fixed on the first sheave（18）On, the other end is fixed on the 5th sheave（34）On, the 5th sheave（34）With third
Sheave（30）Between pass through the second hauling rope（10）Connection, second hauling rope（10）One end be fixed on third sheave（30）
On, the other end is fixed on the 5th sheave（34）On；
First Pneumatic power support lever（19）Bottom end is socketed in the first locating shaft（23）On, the other end and the first blade（1）Tail end
It is connected by bolted splice, second Pneumatic power support lever（29）Bottom end is socketed in the second locating shaft（15）On, the other end and
Two blades（2）Tail end is connected by bolted splice, and to realize, when blade has been unfolded, two Pneumatic power support levers extend and to institute
State the first blade, the second blade plays a supportive role, when needing blade to fold, two Pneumatic power support levers shed support force, with
First blade, the second blade rotation piston rod progress into cylinder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810436218.XA CN108621725B (en) | 2018-05-09 | 2018-05-09 | Folding propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810436218.XA CN108621725B (en) | 2018-05-09 | 2018-05-09 | Folding propeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108621725A true CN108621725A (en) | 2018-10-09 |
| CN108621725B CN108621725B (en) | 2021-02-05 |
Family
ID=63692252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810436218.XA Expired - Fee Related CN108621725B (en) | 2018-05-09 | 2018-05-09 | Folding propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108621725B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607004A (en) * | 2020-12-26 | 2021-04-06 | 浙江大学 | Transversely-folded propeller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202358299U (en) * | 2011-11-04 | 2012-08-01 | 深圳市大疆创新科技有限公司 | Detachable multi-rotor type aircraft |
| CN102649476A (en) * | 2011-02-28 | 2012-08-29 | 波音公司 | Disc rotor retraction system |
| CN104071329A (en) * | 2014-03-31 | 2014-10-01 | 江苏艾锐泰克无人飞行器科技有限公司 | Folding propeller |
| CN106741825A (en) * | 2016-11-21 | 2017-05-31 | 西安三翼航空科技有限公司 | A kind of six rotor unmanned aircrafts |
| CN206384156U (en) * | 2016-12-30 | 2017-08-08 | 马晓辉 | Fixed-wing unmanned plane provided with protection device |
| EP3243745A1 (en) * | 2016-05-13 | 2017-11-15 | Bell Helicopter Textron Inc. | Forward folding rotor blades |
-
2018
- 2018-05-09 CN CN201810436218.XA patent/CN108621725B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649476A (en) * | 2011-02-28 | 2012-08-29 | 波音公司 | Disc rotor retraction system |
| CN202358299U (en) * | 2011-11-04 | 2012-08-01 | 深圳市大疆创新科技有限公司 | Detachable multi-rotor type aircraft |
| CN104071329A (en) * | 2014-03-31 | 2014-10-01 | 江苏艾锐泰克无人飞行器科技有限公司 | Folding propeller |
| EP3243745A1 (en) * | 2016-05-13 | 2017-11-15 | Bell Helicopter Textron Inc. | Forward folding rotor blades |
| CN106741825A (en) * | 2016-11-21 | 2017-05-31 | 西安三翼航空科技有限公司 | A kind of six rotor unmanned aircrafts |
| CN206384156U (en) * | 2016-12-30 | 2017-08-08 | 马晓辉 | Fixed-wing unmanned plane provided with protection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607004A (en) * | 2020-12-26 | 2021-04-06 | 浙江大学 | Transversely-folded propeller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108621725B (en) | 2021-02-05 |
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Granted publication date: 20210205 Termination date: 20210509 |