CN105217030B

CN105217030B - A kind of composite rotating wing lift unit

Info

Publication number: CN105217030B
Application number: CN201510721375.1A
Authority: CN
Inventors: 王志成
Original assignee: Foshan Shenfeng Aviation Technology Co Ltd
Current assignee: Beijing Institute of Remote Sensing Equipment
Priority date: 2015-10-30
Filing date: 2015-10-30
Publication date: 2018-03-06
Anticipated expiration: 2035-10-30
Also published as: CN105217030A

Abstract

A kind of composite rotating wing lift unit, category vehicle technology field, including main shaft, rotor head, power set and two be evenly distributed on around rotor head, three or four identical composite wings.Each composite wing includes fin and two, three or four parameter identical propellers.The leading edge of fin is horizontally disposed, and the root of fin is connected with rotor head.The leading edge of fin is higher than the trailing edge of fin.All propellers are horizontal or turn forward and be arranged in the lower section of fin in " one " word.By the propeller of all composite wings of driven by engine, or each propeller individually matches somebody with somebody an engine.Because propeller is arranged on the lower section of fin, the air-flow above fin can be guided into the back lower place during propeller rotational, the air-flow separation of fin upper surface can be so postponed, is advantageous to improve efficiency and stability, and the angle of attack of fin can be with larger so as to improving lift caused by fin unit area.Lift unit is made in described device installation on board the aircraft.

Description

A kind of composite rotating wing lift unit

Technical field

A kind of composite rotating wing lift unit, category vehicle technology field, more particularly to a kind of lift unit.

Background technology

The fin for being traditionally used for the main rotor of helicopter is one piece of overall structure, is rotated under the direct drive of engine Lift is produced, produces the inefficient of lift, the less fin of area produces lift and could realized by improving speed, speed The big high requirement to material is higher, and main rotor rotating speed it is too high can produce very big noise, even sound barrier, efficiency occur for wing tip Degradation, security are badly damaged.

The content of the invention

The purpose of the present invention is to overcome the above-mentioned deficiency of traditional Helicopter Main rotor, and invention one kind, which slowly runs, can just produce The efficient composite rotating wing lift unit of raw high-lift.

A kind of composite rotating wing lift unit, including main shaft, rotor head, power set and be evenly distributed on around rotor head Two, three or four identical composite wings.If during using two composite wings, two composite wings are mutually 180 ° and are arranged on rotation Around wing head；If during using three composite wings, three composite wings are mutually 120 ° and are arranged on around rotor head；If using During four composite wings, four composite wings are mutually in 90 ° to be arranged on around rotor head.

The concrete structure of composite wing is：Each composite wing includes fin and two, three or four parameter identical spiral shells Revolve oar.The leading edge of fin is horizontally disposed, and the root of fin is connected with rotor head.The leading edge of fin is higher than the trailing edge of fin, fin The angle of attack between 3 ° ~ 15 °.All propellers are in " one " word arrangement in the lower section of fin, and all propellers are all in same One height, for the Plane of rotation of all propellers all in same plane, propeller is horizontally disposed or in the leading edge side of fin Tilted to forward downward, inclined angle is not more than 15 °.The chord length of fin is between 0.8 times ~ 1.3 times of airscrew diameter.The wing The length of piece is more than the diameter sum of all propellers in a composite wing.In order to not influence efficiency, propeller can not be too near to Fin is installed, and leaves appropriate enough gaps between the two, the minimum range of trailing edge to the propeller Plane of rotation of fin is big In 8mm.

Power set have two kinds of forms：By the propeller of all composite wings of driven by engine, engine is installed on rotation In wing head or in body, power passes to all propellers by mechanism by engine；Or each propeller individually matches somebody with somebody one Engine, engine uses motor during the form, and motor is installed on above corresponding propeller and is placed in fin.

A kind of operation principle of composite rotating wing lift unit of the invention is：All propeller rotationals of power drive, in spiral shell Under the drive for revolving oar, composite wing can rotate around the spindle and produce lift.Lift is produced by the collective effect of propeller and fin 's.Be present the angle of an opening forward in propeller Plane of rotation and fin, can accelerate air after pushing to during propeller rotational Lower section, powerful downwash flow is formed, according to Newton's second law and the 3rd law, the composite rotating wing lift unit will produce The thrust of raw larger forward upward, that is, upward lift and thrust forward are generated simultaneously, in thrust forward In the presence of, composite wing rotates around the spindle, and the faster caused lift of speed of rotation is bigger.The composite rotating wing lift unit Installation can make aircraft vertical go up to the air on board the aircraft.Sail area less can also produce sufficiently large lift, as long as propeller The enough height of rotating speed.Due to the Plane of rotation of propeller be horizontal or it is slightly canted tiltedly, compound rotation during rotation The resistance that the propeller of rotor lift unit is subject to is smaller, and efficiency is higher.Because propeller is arranged on the lower section of fin, propeller Air-flow above fin can be guided into the back lower place during rotation, the air-flow separation of fin upper surface can be so postponed, be advantageous to improve Efficiency and stability, and the angle of attack of fin can be with larger so as to improving lift caused by fin unit area.

Brief description of the drawings

Fig. 1 is a kind of schematic top plan view of composite rotating wing lift unit of the present invention；Fig. 2 is a kind of composite rotating of the present invention Structural representation enlarged drawing of the composite wing of wing lift unit from wing tip to from wing root direction, Fig. 3 are a kind of compound rotations of the present invention The operation principle streamline schematic diagram of the composite wing of rotor lift unit.

In figure, 1- main shafts, 2- rotor heads, 3- power set, 4- composite wings, 41- fins, the leading edge of 411- fins, 412- The trailing edge of fin, 42- propellers, 5- streamlines.

Embodiment

The present invention is illustrated in conjunction with accompanying drawing：A kind of composite rotating wing lift unit, including main shaft 1, rotor First 2, power set 3 and two composite wings 4 being evenly distributed on around rotor head 2.Two composite wings 4 are mutually 180 ° and are arranged on rotation Around wing head 2.The concrete structure of composite wing 4 is：Each composite wing 4 includes fin 41 and two parameter identical propellers 42.The leading edge of fin 41 is horizontally disposed, and the root of fin 41 is connected with rotor head 2.The leading edge 411 of fin is higher than the trailing edge of fin 412, the angle of attack of fin 41 is 10 °.Two propellers 42 are all located in " one " word arrangement in the lower section of fin 41, two propellers 42 In sustained height, for the Plane of rotation of two propellers 42 all in same plane, propeller 42 is horizontally disposed or in fin The direction forward downward of leading edge 411 tilts, and inclined angle is 5 °.The chord length of fin 41 is 1.1 times of the diameter of propeller 42.Fin 41 length is more than the diameter sum of two propellers 42 in composite wing 4.In order to not influence efficiency, propeller 42 can not be too near to Fin 41 is installed, and should stay appropriate gap between the two, and the minimum range of trailing edge 412 to the Plane of rotation of propeller 42 of fin is more than 8mm.Power set have two kinds of forms：By the propeller 42 of all composite wings 4 of a motor driven, motor is installed on rotor head 2 In interior or body, power passes to all propellers 42 by mechanism by motor；Or each propeller 42 individually matches somebody with somebody an electricity Machine, the top that motor is installed on corresponding propeller 42 are placed in fin 41.

Composite rotating wing lift unit of the present invention is such generation beneficial effect：42 turns of all propellers of power drive Dynamic, under the drive of propeller 42, composite wing 4 can rotate around main shaft 1 and produce lift.Lift is by propeller 42 and fin 41 Collective effect caused by.There is the angle of an opening forward in the Plane of rotation of propeller 42, propeller 42 rotates with fin 41 When can by air accelerate push the back lower place to, form powerful downwash flow, it is described multiple according to Newton's second law and the 3rd law Close rotary wings lift unit and will produce the thrust of larger forward upward, that is, generating upward lift and forward simultaneously Thrust, in the presence of thrust forward, composite wing 4 rotates around main shaft 1, and lift caused by the speed of rotation is faster is bigger. The composite rotating wing lift unit installation can make aircraft vertical go up to the air on board the aircraft.The area of fin 41 less can also produce Sufficiently large lift, as long as the enough height of the rotating speed of propeller 42.Be horizontal due to the Plane of rotation of propeller 42 or It is slightly canted tiltedly, the resistance that the propeller 42 of the composite rotating wing lift unit is subject to during rotation is smaller, and efficiency is higher.Due to Propeller 42 is arranged on the lower section of fin 41, can guide the air-flow of the top of fin 41 into the back lower place when propeller 42 rotates, so The air-flow separation of the upper surface of fin 41 can be postponed, be advantageous to improve efficiency and stability, and the angle of attack of fin 41 can with it is larger from And improve lift caused by the unit area of fin 41.

Claims

A kind of 1. composite rotating wing lift unit, it is characterised in that：Including main shaft（1）, rotor head（2）, power set（3）With it is equal It is even to be distributed in rotor head（2）Two, three or four identical composite wings of surrounding（4）；Each composite wing（4）All include fin （41）With two, three or four parameter identical propellers（42）；Fin（41）Leading edge it is horizontally disposed, fin（41）Root Portion and rotor head（2）It is connected；The leading edge of fin（411）Higher than the trailing edge of fin（412）；All propellers（42）In " one " word It is arranged in fin（41）Lower section, all propellers（42）All in sustained height, all propellers（42）Rotary flat Face is all in same plane, propeller（42）Leading edge horizontally disposed or in fin（411）Direction forward downward tilts；Fin （41）Chord length in propeller（42）Between 0.8 times of diameter ~ 1.3 times；Fin（41）Length be more than a composite wing（4）In All propellers（42）Diameter sum；Propeller（42）And fin（41）Between leave gap.
A kind of 2. composite rotating wing lift unit according to claim 1, it is characterised in that：Using two composite wings（4） When, two composite wings（4）It is mutually 180 ° and is arranged on rotor head（2）Around；Using three composite wings（4）When, three composite wings （4）It is mutually 120 ° and is arranged on rotor head（2）Around；Using four composite wings（4）When, four composite wings（4）Mutual installation in 90 ° In rotor head（2）Around.
A kind of 3. composite rotating wing lift unit according to claim 1, it is characterised in that：Fin（41）The angle of attack at 3 ° Between ~ 15 °.
A kind of 4. composite rotating wing lift unit according to claim 1, it is characterised in that：Propeller（42）In fin Leading edge（411）Forward downward inclined angle in direction is not more than 15 °.
A kind of 5. composite rotating wing lift unit according to claim 1, it is characterised in that：The trailing edge of fin（412）Arrive Propeller（42）The minimum range of Plane of rotation is more than 8mm.
A kind of 6. composite rotating wing lift unit according to claim 1 or 2 or 3 or 4, it is characterised in that：Power set There are two kinds of forms：By all composite wings of driven by engine（4）Propeller（42）, engine is installed on rotor head（2）It is interior Or in body, power passes to all propellers by mechanism by engine（42）；Or each propeller（42）Individually match somebody with somebody one Individual engine.
A kind of 7. composite rotating wing lift unit according to claim 1 or 2 or 3 or 4, it is characterised in that：Each spiral Oar（42）Driven by a motor, the motor is installed on corresponding propeller（42）Top be placed in fin（41）It is interior.