CN113386957A - Pull formula rotor and aircraft - Google Patents
Pull formula rotor and aircraft Download PDFInfo
- Publication number
- CN113386957A CN113386957A CN202110867886.XA CN202110867886A CN113386957A CN 113386957 A CN113386957 A CN 113386957A CN 202110867886 A CN202110867886 A CN 202110867886A CN 113386957 A CN113386957 A CN 113386957A
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- China
- Prior art keywords
- rotor
- rotor wing
- pull
- wing
- outer rotor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a pull-out rotor wing, which comprises an inner rotor wing and an outer rotor wing; one end part of the inner rotor wing is connected with the rotating main shaft, and the other end part of the inner rotor wing is arranged in the telescopic hole of the outer rotor wing, wherein the outer rotor wing can slide along the inner rotor wing through the telescopic hole; the inner rotor wing is also provided with a contraction driving mechanism for pulling the outer rotor wing to contract inwards; when the rotary main shaft drives the inner rotor to rotate, the outer rotor can slide outwards under the action of centrifugal force and extend, when the inner rotor stops rotating, the contraction driving mechanism drives the outer rotor to slide inwards to contract, the length of the rotor is effectively reduced, and therefore the space area occupied by the rotor when being stored is greatly reduced, therefore, the pull-out rotor can be used for generating enough lift force and power by reducing the space required for storage and use and also can be used in the rotating process.
Description
Technical Field
The invention relates to the field of aircrafts, in particular to a pull-out rotor and an aircraft.
Background
The traditional helicopter adopts the design of double-propeller (2 rotors), three-propeller (3 rotors) or four-propeller (4 rotors), and the quantity of required propellers is different for helicopters with different carrying capacities. The helicopter with larger load capacity needs more blades and longer rotor length, and occupies larger space for taking off and landing, so that the application of the traditional rotor to the aircraft is limited by a plurality of spaces, the existence of the traditional rotor can increase the space required by the storage and use of the aircraft, and the storage of a plurality of aircrafts in limited space (such as military ships and air rescue) and the use of the aircrafts in narrow roads are not facilitated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a pull type rotor wing for an aircraft to reduce the space occupied by the rotor wing when the aircraft is parked.
In order to achieve the purpose, the invention provides the following technical scheme:
a pull-out rotor wing comprises an inner rotor wing and an outer rotor wing; one end part of the inner rotor wing is connected with the rotating main shaft, and the other end part of the inner rotor wing is arranged in the telescopic hole of the outer rotor wing, wherein the outer rotor wing can slide along the inner rotor wing through the telescopic hole; the inner rotor wing is also provided with a contraction driving mechanism for pulling the outer rotor wing to contract inwards; when the rotary main shaft drives the inner rotor to rotate, the outer rotor can slide outwards under the action of centrifugal force to extend, and when the inner rotor stops rotating, the contraction driving mechanism drives the outer rotor to slide inwards to contract.
The invention further provides that: the retraction driving mechanism is a tension spring, one end part of the tension spring is fixed on the inner rotor wing, and the other end part of the tension spring is connected with the outer rotor wing; when the outer rotor wing can slide outwards under the action of centrifugal force and extend, the tension spring can be stressed and stretched.
The invention further provides that: the contraction driving mechanism comprises a pull rope, a storage disc and a driving motor for driving the storage disc to rotate; one end of the pull rope is wound on the storage disc, and the other end of the pull rope penetrates through the inner rotor wing to be connected with the outer rotor wing.
The invention further provides that: the driving motor is provided with a driving gear, and the storage disc is provided with a driven fluted disc meshed with the driving gear.
The invention further provides that: the contraction driving mechanism further comprises a wire pressing wheel, and the wire pressing wheel pulls out or retracts the guide pull rope from the containing disc.
The invention further provides that: the interior rotor arranges a tip in the telescopic hole and sets up spacing portion, and when outer rotor outwards slided and extend, the port in telescopic hole can support and lean on spacing portion, and the restriction outer rotor continues outwards to slide and extend.
The invention further provides that: a buffer layer is arranged on the limiting part.
The invention further provides that: the rotary main shaft is provided with a rotor wing connecting shaft, and the rotor wing connecting shaft is connected with the inner rotor wing through the rotating connector.
The invention also provides an aircraft which comprises an aircraft body, wherein the pull-out type rotor wing is arranged on the aircraft body.
The invention has the beneficial effects that: because outer rotor can follow interior rotor sliding through the flexible hole, when this rotor stops to rotate not using, shrink actuating mechanism will order about outer rotor and inwards slide the shrink, and pull formula rotor is in the shrink state this moment, effectively reduces rotor length to the space area who occupies when greatly reduced the rotor and deposited. After the pull-out rotor wing is used on the aircraft, the space required for storage and use is effectively reduced, and the aircraft is favorable for storing a plurality of aircrafts in a limited space. Therefore, more carrier-borne aircraft can be stored in the fixed space of the military ship to enhance the armed force. After the air ambulance descends, the air ambulance can drive into a narrower road area to carry out more accurate emergency rescue on the target.
When the rotor is rotatory to be used, wherein rotatory main shaft drives the interior rotor rotatory, outer rotor can be at the outside extension that slides under the centrifugal force effect for pull formula rotor is in the extension state, thereby makes pull formula rotor have enough rotation length, and produces corresponding lift and power and provide the aircraft and use. Therefore, the pull-out rotor wing can reduce the space required for storage and use, and can be made to have enough length to generate enough lift force and power in the rotating process.
Drawings
Fig. 1 is a schematic structural view of a drawout rotor in a retracted state according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a pull-out rotor in an extended state according to embodiment 1 of the present invention;
fig. 3 is an exploded view of a pull-out rotor according to embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a retractable rotor wing according to embodiment 2 of the present invention in a retracted state;
fig. 5 is a schematic structural view of a pull-out rotor in an extended state according to embodiment 2 of the present invention;
fig. 6 is an exploded view of a pull-out rotor according to embodiment 2 of the present invention;
fig. 7 is a schematic structural view of the inner rotor;
fig. 8 is a schematic structural view of the outer rotor.
Description of reference numerals: 1. an inner rotor; 11. a limiting part; 2. an outer rotor; 21. a telescopic hole; 3. rotating the main shaft; 4. a rotor wing connecting shaft; 5. a rotating connector; 6. a tension spring; 71. pulling a rope; 72. a storage tray; 73. a drive motor; 74. a driving gear; 75. a driven fluted disc; 76. a wire pressing wheel.
Detailed Description
A pull-out rotor and an aircraft according to the invention will be described in further detail with reference to fig. 1 to 8.
Example 1: as can be seen from fig. 1 to 3, a pull-out rotor includes an inner rotor 1 and an outer rotor 2; one end of the inner rotor wing 1 is connected with the rotary main shaft 3, the other end is arranged in the telescopic hole 21 of the outer rotor wing 2, the outer rotor wing 2 can slide along the inner rotor wing 1 through the telescopic hole 21, wherein the rotary main shaft 3 is provided with a rotor wing connecting shaft 4, and the rotor wing connecting shaft 4 is connected with the inner rotor wing 1 through the rotating connector 5.
Interior rotor 1 still is provided with and is used for pulling the inside shrink actuating mechanism who contracts of outer rotor 2, shrink actuating mechanism is extension spring 6, rotor 1 including one end of extension spring 6 is fixed, and another tip is connected with outer rotor 2.
When the rotating main shaft 3 drives the inner rotor wing 1 to rotate, the outer rotor wing 2 slides outwards and extends under the action of centrifugal force, and the tension spring 6 is stressed and stretched at the moment, so that the pull-out rotor wing is in an extending state, and the pull-out rotor wing has enough rotating length and generates corresponding lift force and power to be supplied to an aircraft; when interior rotor 1 stopped rotating, the pulling force of extension spring 6 will order about outer rotor 2 and to the internal slip shrink, and pull formula rotor is in the shrink state this moment, effectively reduces rotor length to the space area who occupies when the rotor that has significantly reduced deposits makes on the aircraft use this pull formula rotor after, effectively reduces and deposits and use required space, is favorable to depositing many aircrafts in finite space. Therefore, more carrier-borne aircraft can be stored in the fixed space of the military ship to enhance the armed force. After the air ambulance descends, the air ambulance can drive into a narrower road area to carry out more accurate emergency rescue on the target.
When not using for interior rotor 1 stops to rotate, pull formula rotor is in the shrink state all the time, extension spring 6 will set up certain pretightning force, avoids outer rotor 2 unexpected outside slip.
Interior rotor 1 arranges a tip in flexible hole 21 in and sets up spacing portion 11, and when outer rotor 2 outwards slided and extend, the port in flexible hole 21 can support and lean on in spacing portion 11, and the outer rotor 2 of restriction continues outwards to slide and extends, plays the location restriction effect to outer rotor 2 extension position, is provided with the buffer layer in spacing portion, can effectively reduce the impact force that outer rotor 2 outwards slided and extend the production, reduces the noise.
When the aircraft is ready to take off, the centrifugal force will increase as the engine speed of the aircraft increases, wherein the rotational speed of the rotating main shaft 3 also increases. The pulling force of extension spring 6 will be overcome to the centrifugal force that outer rotor 2 receives this moment for outer rotor 2 outwards slides and extends, makes pull formula rotor become the extension state by the contraction state, and pull formula rotor has sufficient rotation length, provides lift and power for the aircraft.
After the aircraft fell, the engine stalled and shut down, and the centrifugal force that is brought by rotatory main shaft 3 this moment can be more and more littleer, and when the pulling force of extension spring 6 was greater than the centrifugal force that outer rotor 2 received, the inside shrink that slides of outer rotor 2 of this extension spring 6 pulling, pull formula rotor is by the extension state become the shrink state, reduces to deposit or usage space.
The invention also provides an aircraft which comprises an aircraft body, wherein the pull-out type rotor wing is arranged on the aircraft body, so that the aircraft can be parked in any standard parking space like vehicles such as automobiles and the like without occupying extra space, and the aircraft is very convenient and practical.
Example 2: as can be seen from fig. 4 to 6, the main technical features of the present embodiment are as follows: the contraction driving mechanism comprises a pull rope 71, a storage disc 72 and a driving motor 73 for driving the storage disc 72 to rotate; the driving motor 73 is provided with a driving gear 74, the storage disc 72 is provided with a driven gear disc 75 meshed with the driving gear 74, one end of the pull rope 71 is wound on the storage disc 72, the other end of the pull rope passes through the inner rotor 1 to be connected with the outer rotor 2, the driving motor 73 drives the storage disc 72 to rotate, pull out or retract the pull rope 71, the retraction driving mechanism further comprises a wire pressing wheel 76, and the wire pressing wheel 76 guides the pull rope 71 to pull out or retract from the storage disc 72.
When the aircraft is ready to take off, the centrifugal force will increase as the engine speed of the aircraft increases, wherein the rotational speed of the rotating main shaft 3 also increases. Simultaneously the take-up disc 72 pulls out stay cord 71 for outer rotor 2 outwards slides and extends, makes the pull formula rotor become the extension state by the contraction state, and the pull formula rotor has sufficient rotation length, provides lift and power for the aircraft.
After the aircraft descends, the engine stalls and shuts down, and the centrifugal force that is brought by the rotatory main shaft 3 this moment can be littleer and smaller, and the holding disk 72 is rotatory simultaneously withdraws stay cord 71, and this stay cord 71 pulling external rotor 2 slides inwards and contracts, and the pull formula rotor is changed into the contraction state from the extension state, reduces and deposits or the usage space.
The foregoing is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. The utility model provides a pull formula rotor, characterized by: comprises an inner rotor and an outer rotor;
one end part of the inner rotor wing is connected with the rotating main shaft, and the other end part of the inner rotor wing is arranged in the telescopic hole of the outer rotor wing, wherein the outer rotor wing can slide along the inner rotor wing through the telescopic hole;
the inner rotor wing is also provided with a contraction driving mechanism for pulling the outer rotor wing to contract inwards;
when the rotary main shaft drives the inner rotor to rotate, the outer rotor can slide outwards under the action of centrifugal force to extend, and when the inner rotor stops rotating, the contraction driving mechanism drives the outer rotor to slide inwards to contract.
2. A pull-out rotor as claimed in claim 1, wherein: the retraction driving mechanism is a tension spring, one end part of the tension spring is fixed on the inner rotor wing, and the other end part of the tension spring is connected with the outer rotor wing; when the outer rotor wing can slide outwards under the action of centrifugal force and extend, the tension spring can be stressed and stretched.
3. A pull-out rotor as claimed in claim 1, wherein: the contraction driving mechanism comprises a pull rope, a storage disc and a driving motor for driving the storage disc to rotate; one end of the pull rope is wound on the storage disc, and the other end of the pull rope penetrates through the inner rotor wing to be connected with the outer rotor wing.
4. A pull-out rotor as claimed in claim 3, wherein: the driving motor is provided with a driving gear, and the storage disc is provided with a driven fluted disc meshed with the driving gear.
5. A pull-out rotor as claimed in claim 3 or 4, wherein: the contraction driving mechanism further comprises a wire pressing wheel, and the wire pressing wheel pulls out or retracts the guide pull rope from the containing disc.
6. A pull-out rotor as claimed in claim 1, 2 or 3, wherein: the interior rotor arranges a tip in the telescopic hole and sets up spacing portion, and when outer rotor outwards slided and extend, the port in telescopic hole can support and lean on spacing portion, and the restriction outer rotor continues outwards to slide and extend.
7. The pull-out rotor as claimed in claim 6, wherein: a buffer layer is arranged on the limiting part.
8. A pull-out rotor as claimed in claim 1, wherein: the rotary main shaft is provided with a rotor wing connecting shaft, and the rotor wing connecting shaft is connected with the inner rotor wing through the rotating connector.
9. An aircraft, including the aircraft body, characterized by: the pull-out rotor wing according to any one of claims 1 to 8 is provided on an aircraft body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110867886.XA CN113386957A (en) | 2021-07-29 | 2021-07-29 | Pull formula rotor and aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110867886.XA CN113386957A (en) | 2021-07-29 | 2021-07-29 | Pull formula rotor and aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113386957A true CN113386957A (en) | 2021-09-14 |
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ID=77622279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110867886.XA Pending CN113386957A (en) | 2021-07-29 | 2021-07-29 | Pull formula rotor and aircraft |
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| Country | Link |
|---|---|
| CN (1) | CN113386957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115303304A (en) * | 2022-07-26 | 2022-11-08 | 华设设计集团股份有限公司 | High-speed train lifting wing device |
-
2021
- 2021-07-29 CN CN202110867886.XA patent/CN113386957A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115303304A (en) * | 2022-07-26 | 2022-11-08 | 华设设计集团股份有限公司 | High-speed train lifting wing device |
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