CN202481313U - Flying wing aircraft with cycloidal rotor thrusters installed - Google Patents
Flying wing aircraft with cycloidal rotor thrusters installed Download PDFInfo
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- CN202481313U CN202481313U CN2012200299096U CN201220029909U CN202481313U CN 202481313 U CN202481313 U CN 202481313U CN 2012200299096 U CN2012200299096 U CN 2012200299096U CN 201220029909 U CN201220029909 U CN 201220029909U CN 202481313 U CN202481313 U CN 202481313U
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Abstract
The utility model provides a flying wing aircraft with cycloidal rotor thrusters installed. The flying wing aircraft comprises a flying wing aircraft body, cycloidal rotor thrusters and two elevons, wherein cycloidal rotor thrusters are symmetrically installed above the flying wing aircraft body along symmetrical planes of the flying wing aircraft body, cycloidal rotor thruster blades are located outside the upper surface of the flying wing aircraft body, driving devices of cycloidal thrusters are located inside the flying wing aircraft body, each of cycloidal rotor thrusters comprises a cycloidal rotor blade, a blade support, a cycloidal rotor rotating shaft, the driving device and an eccentric circular ring positioning mechanism, and each of eccentric circular ring positioning mechanisms comprises a control pull rod, an eccentric rotating circular ring, an eccentric hollow cylinder positioning platform and an auxiliary positioning pull rod. According to the flying wing aircraft, compared with propellers, cycloidal rotors have higher aerodynamic efficiency, so that fuel can be saved, and the voyage and the load of the aircraft can be improved; two cycloidal rotors have omnidirectional vectored thrust and can conduct course control directly; and air streams produced by cycloidal rotors enables the flow of upper surfaces of flying wings to accelerate, and the lift-drag ratio of flying wings can be improved.
Description
Technical field
The invention belongs to the aviation aircraft technical field, be specially the angle of rake all-wing aircraft layout of a kind of installation cycloid oar aircraft.
Background technology
The traditional conventional aircraft fuselage does not produce lift basically, and lift provides by wing basically.And the body of the aircraft of all-wing aircraft layout overwhelming majority area can both produce lift, and therefore under the condition of equal thrust, the all-wing aircraft layout can allow bigger load carrying ability.Under the condition of specific range, load carrying ability, the needed thrust of all-wing aircraft layout is little, and oil consumption is low, and cost descends.All-wing aircraft has all shown great preceence at aspect weight, manufacturing cost, the aeroperformance and outward appearance aspect.Therefore, the unremitting pursue that to design performance-oriented all-wing aircraft aircraft be a lot of aircraft designers always.
By the U.S. Pat 7,753 of people such as Garreau application, 309B2 discloses a kind of flying wing aircraft that carries out VTOL.In this patent, fuselage links to each other before the center of gravity of airplane and with the part of left and right two wings near leading edge, and about two wings be installed in along the center-of-gravity position of the fuselage plane of symmetry.Two axles are arranged near fuselage plane of symmetry center of gravity, and their axis and fuselage axis normal are vertically installed.A pair of screw propeller vertically is installed in the two ends of two axles respectively, and the axis of propeller boss overlaps with this axis, and a screw propeller is on wing, and another screw propeller is below wing.Utilize a control mechanism, can control two screw propellers respectively and vert, produce lift or thrust, thus make aircraft can carry out VTOL or before fly.Comparatively complicated control of two screw propellers needs of describing in this patent could be controlled and vert, and this greatly reduces the reliability of this flying wing aircraft.In addition, extremely unstable when making these takeoff and landing during these takeoff and landing because the screw propeller that is installed in the wing lower surface can cause strong interference in air flow near ground, so the enforcement difficulty of this scheme is very high.
What the patent CN200420031478.2 that is applied for by people such as Li Dayong told about is a kind of all-wing aircraft aircraft.This aircraft is divided into main wing, the leg wing and the arm wing, is a kind ofly to combine with all-wing aircraft through human body, and self strength of personnel selection is as power, realizes the aircraft that flies with the flapping wing mode and by the upper body air-flow.During flight, the aviator is prostrate, and both legs are agitated the leg wing, produce thrust and lift thus in the main wing top, and realize flight by up current.This aircraft compares with the at present existing aircraft that can really fly, though have better direction controllability; Utilize up current can fly De Genggao, farther, more freely; The little advantage such as light of simple in structure, body; But because this aircraft will be by means of the manpower all-wing aircraft of fluttering, this has proposed challenge for body energy; By up current, natural environment is also just had high requirement, generally need could obtain required air-flow to eminence; And people self aloft fly also have dangerous.Therefore, this scheme implements also and is not easy very much, is difficult to obtain practical applications.
The cycloid oar is also claimed voith schneider propeller, is a kind of propelling unit that variable omnidirectional vectored thrust of moment can be provided, and it has efficient height, vectored thrust and changes fast and characteristics such as noise is extremely low.The Jarugumilli T. of University of Maryland, people such as BenedictM. have delivered the article of one piece of cycloid oar in the conference of 49 AIAA aerospace science.They have done a series of systematicness experiment, have enumerated a large amount of cycloid oar dynamometer check data, and to the vane airfoil profile of cycloid oar, parameters such as the pitch control subsystem angle and the number of blade are studied.They find that under identical rotor disk area, the cycloid oar is than the efficient high a lot (almost exceeding one times) of traditional rotor or screw propeller.The conclusion about cycloid oar parameter that they obtain helps cycloid oar blade or mechanism are optimized design.Details are seen Jarugumilli T., Benedict M.and Chopra, " Experimental Optimization and Performance Analysis of a MAV Scale Cycloidal Rotor ", AIAA 2011-821.
By the U.S. Pat 7,219 of Jammes and Michael McNabb application, 854B2 discloses a kind of aircraft that the cycloid oar is installed.The purpose of this invention provides a kind of aircraft scheme of utilizing the 1ift-drag ratio that ground effect increases aircraft.What aircraft adopted is double end twin fuselage structures, can effectively enlarge aspect ratio like this, makes full use of ground effect.The fuselage the inside is filled with the gas that is lighter than air, can produce buoyancy.At the fuselage top, the propulsion system of a routine is installed.Between two fuselages, near the head place with near place, vertical fin top a cycloid oar device is being installed respectively respectively.The rotating shaft of two cycloid oars is all vertical with the aircraft plane of symmetry.The two ends of axle respectively be installed in two fuselages and be connected with vertical fin in-to-in control mechanism, each blade can rotate separately around the sharf of self.Through the adjusting of control mechanism, to rotate and can produce pulling force upwards be that aircraft provides bigger a part of lift for two cycloid oars when taking off; Preceding flying in the journey; Thrust is mainly provided by the conventional propulsion system that is installed in fuselage back; And the cycloid oar no longer rotates, because the cycloid oar is installed in respectively before and after the center of gravity of aircraft, the lift that cycloidal oar blade produces mainly is used for aircraft is carried out fore-and-aft stability control.In this patent, the fluctuation moment that the cycloid oar produces when making that across the mounting means of two fuselages it rotates is particularly brought very high structural requirement to vertical fin to airframe; And need very complicated control mechanism could accomplish the independent control of cycloidal oar blade in the flight course, this greatly reduces its practicality and reliability.
By Heinz A.Gerhardt, the US Pat 5,265,827 of people such as Redondo Beach application discloses a kind of aircraft that adopts the cycloid oar.In this invention, aircraft will utilize at least two cycloid oars to realize the VTOL flight of aircraft, and the axis of cycloid oar is vertical with the aircraft bilateral symmetry plane.At airplane tail group tail-rotor is installed, the axis of tail-rotor is positioned at the aircraft symmetrical plane, and is vertical with the aircraft axis, when the lift vector of cycloid oar is differential, can control the yaw angle and the roll angle of aircraft, and tail-rotor can be controlled the pitch angle of aircraft.Each cycloidal oar blade is by two stent support, and attack angle of blade is through the actuator control of forms such as electromagnetism or hydraulic pressure, and actuator is then by computer controlled.The cycloid oar of describing in this patent needs very long rotating shaft, needs complicated blade support structure and control mechanism, therefore can bring weight cost and control difficulty.
In a word, the aircraft scheme that proposes around all-wing aircraft at present or stay in conventionally with the mentality of designing of screw propeller as engine installation or is exactly that some implement very difficult scheme.And for the application of cycloid oar, the scheme that proposes at present is also mostly to be merely as main lift source of VTOL aircraft its.Itself and aircraft itself are not done as a wholely to take all factors into consideration, do not bring into play the unique advantage of cycloid oar to greatest extent.
Summary of the invention
The technical matters that solves
In order the cycloid oar to be provided characteristics such as instantaneous variable omnidirectional vectored thrust, noise be extremely low and all-wing aircraft combine well, the present invention proposes the angle of rake all-wing aircraft layout of a kind of installation cycloid oar aircraft.
Technical scheme
Technical scheme of the present invention is:
The angle of rake all-wing aircraft layout of said a kind of installation cycloid oar aircraft is characterized in that: comprise all-wing aircraft layout body, cycloid oar propelling unit and two elevons; Two elevons are installed in the all-wing aircraft layout body trailing edge outside respectively; Cycloid oar propelling unit is installed in all-wing aircraft layout body top along all-wing aircraft layout body plane of symmetry symmetry, and cycloid oar propelling unit blade is in the all-wing aircraft layout body upper surface outside, and the angle of rake actuating device of cycloid oar is in the all-wing aircraft layout body;
Said cycloid oar propelling unit comprises cycloidal oar blade, blade support, the rotating shaft of cycloid oar, actuating device and eccentric loop mapping mechanism;
Said actuating device is fixed in the all-wing aircraft layout body in-to-in actuating device housing; The power take-off of actuating device is connected through coupler with cycloid oar rotating shaft one end; The cycloid oar rotating shaft other end is captiveed joint with the blade carriage center; And the rotating shaft of cycloid oar along the circumferential direction is evenly distributed with some bulbs perpendicular to blade support plane in actuating device housing upper surface, and the center of circle of circumference is on the cycloid oar rotating shaft central axis;
The support arm that the blade support has several uniform divergence shapes to distribute, the outer end of each support arm is fixed with chuck, person in charge's beam normal-running fit of chuck and cycloidal oar blade, the cycloidal oar blade number is identical with the support arm number; Person in charge's beam of cycloidal oar blade and tubule beam parallel respectively with the rotating shaft of cycloid oar, have bulb on overhanging section of the tubule beam of cycloidal oar blade, the tubule beam cooperates with control pull rod one end employing bulb hinge in the eccentric loop mapping mechanism through bulb; In the rotating shaft of cycloid oar, also be fixed with the all-wing aircraft hatchcover; The all-wing aircraft hatchcover is with the angle of rake installing port sealing of cycloid oar; And all-wing aircraft hatchcover and all-wing aircraft layout body upper surface smooth transition; Have some grooves at all-wing aircraft hatchcover edge, the tubule beam of cycloidal oar blade is in the groove for overhanging section, and does not interfere with the all-wing aircraft hatchcover;
Eccentric loop mapping mechanism comprises control pull rod, eccentric rotary annulus, eccentric hollow cylinder positioning table and assist location pull bar; The eccentric rotary annulus along the circumferential direction is evenly distributed with some bulbs on one side; Bulb number on the eccentric rotary annulus is identical with the cycloidal oar blade number; Eccentric rotary annulus another side cooperates through bearing with eccentric hollow cylinder positioning table one end face; And the eccentric rotary annulus is coaxial with eccentric hollow cylinder positioning table; On eccentric hollow cylinder positioning table other end, also be evenly distributed with a plurality of bulbs, the bulb number on the eccentric hollow cylinder positioning table is identical with the bulb number of assist location pull bar number and actuating device housing upper surface; Eccentric hollow cylinder positioning table is connected with outside steering wheel; The control pull rod number is identical with the cycloidal oar blade number, and the bulb on the control pull rod other end and the eccentric rotary annulus adopts the bulb hinge to cooperate, and at least one control pull rod and eccentric rotary annulus connect and fix; Eccentric rotary annulus and eccentric hollow cylinder positioning table are enclosed within the rotating shaft of cycloid oar; Bulb on assist location pull bar one end and the eccentric hollow cylinder positioning table adopts the bulb hinge to cooperate, and the assist location pull bar other end cooperates with the bulb employing bulb hinge of actuating device housing upper surface.
The angle of rake all-wing aircraft layout of described a kind of installation cycloid oar aircraft; It is characterized in that: the maximum angle of attack of cycloidal oar blade is no more than 45 degree, and the maxim of eccentric rotary annulus eccentric throw is 0.707 times that cycloidal oar blade is responsible for distance between beam axis and the cycloidal oar blade tubule beam axis.
Beneficial effect
Beneficial effect of the present invention is: at first, because the relative screw propeller of cycloid oar possesses higher pneumatic efficiency, with its propelling unit as the all-wing aircraft aircraft, can fuel saving, the voyage and the load-carrying that improve aircraft; Secondly,, can simply directly carry out the control of fast speed course to aircraft, avoid very big yaw rudder and required control system thereof being installed at the all-wing aircraft afterbody through them because two cycloid oars have variable omnidirectional vectored thrust of moment; And the air-flow that the rotation of two cycloid oars produces makes the all-wing aircraft upper surface flow to quicken, can further improve the 1ift-drag ratio of all-wing aircraft; The wake flow that the rotation of cycloid oar produces also can be greatly improved so that be installed in the rudder face efficient of the elevon in the all-wing aircraft trailing edge outside; The noise that the cycloid oar is extremely low also helps it to realize civil nature.And single with regard to cycloid oar propelling unit, its blade support and cycloidal oar blade employing normal-running fit have overcome that beam type blade mounting means exists the blade pivot to bear great moment of flexure in the prior art, the problem that blade very easily fractures; Realize the change of the cycloidal oar blade angle of attack and the adjustment of the maximum angle of attack through single motor and eccentric loop mapping mechanism, overcome and carried out the actuator control angle of attack through forms such as electromagnetism or hydraulic pressure in the prior art and bring the control system complicated problems.
Description of drawings
Fig. 1: the angle of rake structural representation of cycloid oar;
Fig. 2: the support zone structural representation of eccentric loop mapping mechanism;
Fig. 3: blade support and cycloidal oar blade mounting structure scheme drawing;
Fig. 4: cycloidal oar blade structural representation;
Fig. 5: jacket structured scheme drawing;
Fig. 6: left jacket structured scheme drawing;
Fig. 7: right jacket structured scheme drawing;
Fig. 8: cycloid oar rotating shaft scheme drawing;
Fig. 9: control pull rod scheme drawing;
Figure 10: eccentric rotary annulus birds-eye view;
Figure 11: eccentric rotary annulus and eccentric hollow cylinder positioning table cutaway view;
Figure 12: the mounting structure scheme drawing of eccentric rotary annulus and control pull rod;
Figure 13: all-wing aircraft layout Flight Vehicle Structure scheme drawing;
Figure 14: all-wing aircraft layout aircraft inner structure scheme drawing;
Figure 15: after the deflection of eccentric rotary annulus, cycloidal oar blade is in 90 ° of azimuthal scheme drawings;
Figure 16: after the deflection of eccentric rotary annulus, cycloidal oar blade is in the scheme drawing of left front;
Figure 17: after the deflection of eccentric rotary annulus, cycloidal oar blade is in 180 ° of azimuthal scheme drawings;
Figure 18: after the deflection of eccentric rotary annulus, cycloidal oar blade is in the scheme drawing of left back;
Figure 19: after the deflection of eccentric rotary annulus, cycloidal oar blade is in 270 ° of azimuthal scheme drawings;
Figure 20: after the deflection of eccentric rotary annulus, cycloidal oar blade is in the scheme drawing of right abaft;
Figure 21: after the deflection of eccentric rotary annulus, cycloidal oar blade is in 0 ° of azimuthal scheme drawing;
Figure 22: after the deflection of eccentric rotary annulus, cycloidal oar blade is in the scheme drawing of right front;
Wherein: 1. all-wing aircraft covering; 2. cycloidal oar blade; 3. support arm; 4. all-wing aircraft hatchcover; 5. cycloid oar rotating shaft; 6. elevon; 9. fuselage rib; 10. wingtip rib; 11. wingflying aircraft figure front-axle beam; 12. wingflying aircraft figure intermediate beam; 13. the wingflying aircraft figure back rest; 14. all-wing aircraft front-axle beam; 15. the all-wing aircraft back rest; 18. electric machine casing; 19. drive motor; 20. shaft bearing; 21. cycloidal oar blade tubule beam; 22. shaft bearing locating flange; 23. eccentric loop mapping mechanism supports part; 24. spherical hinge is installation base down; 25. pull bar spherical linkage; 26. assist location pull bar; 27. control pull rod; 28. universal coupling; 29. all-wing aircraft hatchcover locating flange; 30. eccentric hollow cylinder positioning table; 31. spherical hinge upper mounting boss; 32. chuck; 33. cycloidal oar blade covering; 34. cycloidal oar blade rib; 35. cycloidal oar blade is responsible for beam; 36. cycloidal oar blade is responsible for beam bearing is installed; 37. the spherical hinge of cycloidal oar blade tubule beam bulb; 38. blade stand connection; 39. all-wing aircraft hatchcover deep-slotted chip breaker; 46. eccentric rotary annulus; 47. spherical hinge bulb mounting hole; 48. spherical hinge bulb; 49. control pull rod position-limited trough; 50. eccentric collar bearing back-up ring; 51. back-up ring captive nut; 52. nylined bearing; 53. rod member.
The specific embodiment
Below in conjunction with specific embodiment the present invention is described:
Present embodiment is the angle of rake all-wing aircraft layout of an a kind of installation cycloid oar aircraft, comprises all-wing aircraft layout body, cycloid oar propelling unit and two elevons 6.
With reference to accompanying drawing 13 and accompanying drawing 14, all-wing aircraft layout body comprises structures such as all-wing aircraft covering 1, fuselage rib 9, wingtip rib 10, wingflying aircraft figure front-axle beam 11, wingflying aircraft figure intermediate beam 12, the wingflying aircraft figure back rest 13, all-wing aircraft front-axle beam 14, the all-wing aircraft back rest 15; Two elevons are installed in the all-wing aircraft layout body trailing edge outside respectively, and its exhibition is 500mm to length, and root is 90mm along tangential length, and taper is 30mm along tangential length.Send instruction through the aviator, two elevon 6 deflections up or down simultaneously about making can realize the pitch control subsystem of aircraft; If about 6 one of two elevons upwards, one deflect down, then can realize the lift-over control of aircraft.Aircraft is wing body fabricate block profile, adopts the NACA0024 aerofoil profile, and the span is 2500mm.Along the aircraft plane of symmetry 6 ribs are installed symmetrically and evenly about aircraft, about each 3, the thickness of every rib is 15mm, the distance that two fuselage ribs are 9 is 600mm, the chord length of fuselage rib 9 is 1000mm, the chord length of wingtip rib 10 is 200mm; The all-wing aircraft sweepback angle is 30 °, and is supreme anti-.All-wing aircraft covering 1 adopts carbon fiber composite material to process.Have symmetrical circular all-wing aircraft hatch at all-wing aircraft covering upper surface along all-wing aircraft layout body plane of symmetry both sides, be used to place cycloid oar propelling unit.
Cycloid oar propelling unit is installed in all-wing aircraft layout body top along all-wing aircraft layout body plane of symmetry symmetry; And cycloid oar propelling unit blade is in the all-wing aircraft layout body upper surface outside; The angle of rake actuating device of cycloid oar is in the all-wing aircraft layout body, and wherein the angle of rake actuating device housing of cycloid oar is fixed on wingflying aircraft figure front-axle beam and the wingflying aircraft figure intermediate beam.Adopt drive motor 19 as the angle of rake actuating device of cycloid oar in the present embodiment.
With reference to accompanying drawing 1, cycloid oar propelling unit comprises cycloidal oar blade 2, blade support, cycloid oar rotating shaft 5, drive motor 19 and eccentric loop mapping mechanism.Said drive motor 19 is fixed in the electric machine casing 18; After the power take-off of drive motor passes the electric machine casing centre housing; Be connected through universal coupling 28 with an end of cycloid oar rotating shaft 5; The benefit that adopts universal coupling 28 is that it can transmitting large torque, and allows between the diaxon because the less angular transposition deviation that processing is brought.With reference to accompanying drawing 2, the rotating shaft of cycloid oar cooperates through shaft bearing 20 with the electric machine casing wainscot, and in the rotating shaft of cycloid oar, shaft bearing locating flange 22 is arranged, and the shaft bearing locating flange is pressed in the shaft bearing upper end, has realized the axial location of cycloid oar rotating shaft.On the electric machine casing wainscot, also be fixed with eccentric loop mapping mechanism supports part 23 and be used to support eccentric loop mapping mechanism; With reference to accompanying drawing 2; Eccentric loop mapping mechanism supports part is an annular; And the central axis of eccentric loop mapping mechanism supports part and the central axes of cycloid oar rotating shaft 5; Along the circumferential direction be evenly distributed with installation base 24 under four spherical hinges on the eccentric loop mapping mechanism supports part, each spherical hinge all is fixed with a spherical hinge bulb on the installation base down, is used for adopting the bulb hinge to cooperate with the assist location pull bar 26 of eccentric loop mapping mechanism.
With reference to accompanying drawing 3, the cycloid oar rotating shaft other end is captiveed joint with the blade stand connection 38 of blade carriage center, and the rotating shaft of cycloid oar is perpendicular to blade support plane, and blade stand connection 38 is captiveed joint with the blade bracket screw; The blade support comprises support arm and chuck, and the blade support adopts the aluminum alloy manufacturing, and support arm is uniform divergence shape and distributes; In the present embodiment; The blade support comprises four support arms, and four support arms are crossing distribution, and the outer end of each support arm all is fixed with a chuck 32.With reference to accompanying drawing 5 to accompanying drawing 7, chuck 32 is divided into left chuck and right chuck, and the chuck inside face has the bearing installation deep-slotted chip breaker, and left chuck and right chuck pass through screw retention.The bearing installation deep-slotted chip breaker of chuck inside face cooperates with the cycloidal oar blade person in charge beam installation bearing 36 that cycloidal oar blade is responsible on the beam 35; Both realized the normal-running fit of chuck and cycloidal oar blade person in charge beam; Realized the axial location of support arm on cycloidal oar blade person in charge beam again; Cycloidal oar blade both can revolve round the sun along with the blade support together, can be responsible for beam around cycloidal oar blade again and freely rotate.
With reference to accompanying drawing 4, cycloidal oar blade 2 adopts the rectangle aerofoil of NACA0014 symmetrical airfoil; The cycloidal oar blade number is identical with the support arm number; The cycloidal oar blade covering 33 that the carbon fiber composite material manufacturing is arranged in the cycloidal oar blade surface coverage; The chord length of cycloidal oar blade is 60mm; The span is 120mm; Aspect ratio is 2; Be uniformly distributed with six cycloidal oar blade ribs 34 that are parallel to each other in the cycloidal oar blade, and on the cycloidal oar blade rib, have the pipe beam hole of perforation, cycloidal oar blade to be responsible for the pipe beam hole that beam 35 and cycloidal oar blade tubule beam 21 pass each cycloidal oar blade rib respectively apart from leading edge point 8mm and 25mm place.The axial middle part that cycloidal oar blade is responsible for beam 35 is equipped with cycloidal oar blade person in charge beam installation bearing 36; Cycloidal oar blade is responsible for beam installation bearing and is cooperated with the bearing installation deep-slotted chip breaker of chuck; Make cycloidal oar blade be able to be fixed on the blade support, rotate with the blade support.Cycloidal oar blade tubule beam and cycloidal oar blade are responsible for beam and all are parallel to the rotating shaft of cycloid oar; Overhanging section lower end of cycloidal oar blade tubule beam is fixed with the spherical hinge of cycloidal oar blade tubule beam bulb 37, is used for adopting the bulb hinge to cooperate with control pull rod 27 1 ends of eccentric loop mapping mechanism.
Also have a radially all-wing aircraft hatchcover locating flange 29 of protrusion at cycloid oar rotating shaft middle part, diameter is 15mm, and thick is 2mm.All-wing aircraft hatchcover locating flange is used for cooperating with all-wing aircraft hatchcover 4, with all-wing aircraft hatchcover 4 axial restraints.All-wing aircraft hatchcover 4 is circular carbon plate, and diameter is 230mm, and identical with all-wing aircraft hatch diameter on the all-wing aircraft covering, thickness is 2mm, and there is through hole at all-wing aircraft hatchcover center, is used for the rotating shaft of cycloid oar and passes.Be uniformly distributed with four width all-wing aircraft hatchcover arc shaped groove 39 slightly wideer than cycloidal oar blade tubule beam 21 external diameters at the edge of all-wing aircraft hatchcover; Make cycloidal oar blade tubule beam 21 be able to pass all-wing aircraft hatchcover 4 and get in the all-wing aircraft layout bodies, and cycloidal oar blade 2 can move freely in all-wing aircraft hatchcover arc shaped groove 39 when doing luffing and do not bump with all-wing aircraft hatchcover 4 or interference such as friction.All-wing aircraft hatchcover 4 not only can cover all-wing aircraft hatch 7, does not allow air-flow to get into interior of aircraft, and very little with the distance of cycloidal oar blade 2 lower ends, can play the effect of wingtip end plate, effectively reduces and induces loss, has further improved the pneumatic efficiency of cycloidal oar blade.
With reference to accompanying drawing 1, eccentric loop mapping mechanism comprises four control pull rod 27, eccentric rotary annulus 46, eccentric hollow cylinder positioning table 30 and four assist location pull bars 26.
Control pull rod is identical with the assist location Tiebar structure; Be the aluminum alloy rod member, form by rod member 53 and pull bar spherical linkage 25, shown in accompanying drawing 9; Rod member 53 two ends are connected cooperation with pull bar spherical linkage 25 coaxial threaded, and pull bar spherical linkage 25 is used for adopting the bulb hinge to cooperate with bulb.
With reference to accompanying drawing 10; Along the circumferential direction be evenly distributed with four tapped spherical hinge bulb mounting holes 47 on eccentric rotary annulus 46 1 sides; Spherical hinge bulb is fixed in the spherical hinge bulb mounting hole 47, is used for adopting the bulb hinge to cooperate with the other end of control pull rod 27.There is the control pull rod position-limited trough 49 of protrusion at the outer rim place of a spherical hinge bulb mounting hole 47 therein, is used to block wherein control pull rod rod member, and eccentric rotary annulus 46 is rotated with the cycloid oar.
With reference to accompanying drawing 11, eccentric rotary annulus another side cooperates through nylined bearing 52 with eccentric hollow cylinder positioning table 30 1 end faces, and through eccentric collar bearing back-up ring 50 that nylined bearing 52 is spacing.The eccentric rotary annulus is coaxial with eccentric hollow cylinder positioning table, and the eccentric rotary annulus is free to rotate with eccentric hollow cylinder positioning table relatively.Eccentric hollow cylinder positioning table is connected with outside steering wheel, and outside steering wheel is used to adjust the axial location of eccentric hollow cylinder positioning table.On eccentric hollow cylinder positioning table other end, along the circumferential direction be evenly distributed with four spherical hinge upper mounting boss 31; Be fixed with a spherical hinge bulb on each spherical hinge upper mounting boss, be used for adopting the bulb hinge to cooperate with the assist location pull bar 26 of eccentric loop mapping mechanism.
Eccentric rotary annulus and eccentric hollow cylinder positioning table are enclosed within the rotating shaft of cycloid oar; The pull bar spherical linkage at assist location pull bar two ends respectively with sphere hinge down the sphere hinge bulb of installation base and spherical hinge upper mounting boss cooperate; The combined type parallel-crank mechanism of four assist location pull bar compositions can be realized the axial location of eccentric loop mapping mechanism, and guarantees that the eccentric rotary annulus is parallel with cycloid oar shaft axis with eccentric hollow cylinder positioning table axis; And the pull bar spherical linkage at control pull rod two ends cooperates with spherical sphere hinge bulb and the spherical hinge of the cycloidal oar blade tubule beam bulb that cuts with scissors in the bulb mounting hole of eccentric rotary annulus respectively, realizes that cycloidal oar blade drive eccentric rotary annulus rotates.
It is parallel with the central axis of cycloid oar rotating shaft but do not overlap that off-centre in the said eccentric loop mapping mechanism refers to the central axis of eccentric rotary annulus, has eccentric throw.Shown in figure 12; Externally under the effect of servo steering wheel, eccentric hollow cylinder positioning table drives the eccentric rotary annulus and changes the position, thereby produces eccentric throw; Eccentric throw is not 0 o'clock; Cycloidal oar blade will be done periodically luffing under the control of control pull rod 27, thereby will produce the vector pulling force, and outside servo steering wheel is regulated the eccentric throw size is perhaps changed drive motor 19 by pilot guidance rotating speed; Then can produce the pulling force of different sizes, for all-wing aircraft layout aircraft provides thrust under different flying speed states.And, then can control the course attitude of all-wing aircraft layout aircraft through regulating the eccentric azimuth of eccentric rotary annulus 46; The wake flow that the rotation of cycloidal oar blade 2 produces makes the air current flow of all-wing aircraft upper surface quicken, thereby makes the pressure reduction on the upper and lower surface of all-wing aircraft increase, and improves the 1ift-drag ratio of all-wing aircraft.
Because two cycloid oar propelling units are that symmetry is installed on aircraft; Describing for clear, is that example is analyzed with one of them cycloid oar propelling unit: suppose eccentric rotary annulus 46 under servo steering wheel or aviator's manipulation, be displaced to the dead aft in cycloid oar rotating shaft 5 centers of circle; And cycloid oar rotating disk is pressed anticlockwise motion; In Figure 15, when cycloidal oar blade 2 moves to 90 ° of orientation, under the pulling of control pull rod 27; Cycloidal oar blade 2 strings of a musical instrument and linear velocity direction will produce positive incidence, and the lift direction is the dead ahead; Among Figure 16, cycloidal oar blade 2 moves to the left front, and under the pulling of control pull rod 27, still relative its linear velocity direction of cycloidal oar blade 2 has positive incidence, and the lift direction is the left front; Among Figure 17, when cycloidal oar blade 2 moved to 180 ° of orientation, the string of a musical instrument of cycloidal oar blade 2 was parallel with the linear velocity direction, did not produce lift; Among Figure 18, when cycloidal oar blade 2 moved to the left back, cycloidal oar blade 2 was under the promotion of control pull rod 27, and its linear velocity direction produces positive incidence relatively, and the lift direction is the right front; Among Figure 19, when cycloidal oar blade 2 moved to 270 ° of orientation, control pull rod 27 promoted cycloidal oar blade 2, made its relative linear velocity direction produce positive incidence, and the lift direction is the dead ahead; Among Figure 20, when cycloidal oar blade 2 moved to the right abaft, control pull rod 27 promoted cycloidal oar blade 2, made it produce positive incidence, and the lift direction is the left front; Among Figure 21, when cycloidal oar blade 2 moved to 0 ° of orientation, control pull rod 27 made the string of a musical instrument of cycloidal oar blade 2 parallel with its linear velocity direction, and cycloidal oar blade 2 does not produce lift; Among Figure 22, when cycloidal oar blade 2 moved to the right front, control pull rod 27 pulling cycloidal oar blade 2 made its new line, and the lift direction is the right front.Can find out that around the analysis of the lift that produces in one week of circumference cycloidal oar blade 2 is when 0 degree and 180 degree orientation through a cycloidal oar blade 2, lift is 0, when other orientation, always can produce the lift component in dead ahead.Therefore when eccentric rotary annulus 46 backward during displacement, along with the rotation of cycloid oar, the resultant direction of cycloidal oar blade 2 will be the dead ahead.Because the eccentric throw direction of eccentric annulus 46 can be regulated, therefore the resultant direction of four cycloidal oar blade 2 also can be regulated, thereby the vectored thrust of different directions is provided, the driftage of control aircraft; Perhaps sending instructions through the aviator makes that the rotating speed of motor of two cycloid oars is different, and then the pulling force of each cycloid oar generation varies in size, and also can produce yawing moment, the driftage of control aircraft; And the eccentric throw of the eccentric rotary annulus 46 through regulating the cycloid oar, perhaps the aviator sends the rotating speed of modification of order motor 19, and the size of then can quick adjustment making a concerted effort satisfies different flying speed requirements.
The maximum angle of attack of cycloidal oar blade 2 is no more than 45 degree; The maxim of eccentric rotary annulus eccentric throw is 0.707 times that cycloidal oar blade is responsible for distance between beam 35 axis and cycloidal oar blade tubule beam 21 axis, to avoid cycloidal oar blade 2 stall and mechanism vibrations, clamping stagnation.
Claims (2)
1. one kind the angle of rake all-wing aircraft layout of cycloid oar aircraft is installed, is it is characterized in that: comprise all-wing aircraft layout body, cycloid oar propelling unit and two elevons; Two elevons are installed in the all-wing aircraft layout body trailing edge outside respectively; Cycloid oar propelling unit is installed in all-wing aircraft layout body top along all-wing aircraft layout body plane of symmetry symmetry, and cycloid oar propelling unit blade is in the all-wing aircraft layout body upper surface outside, and the angle of rake actuating device of cycloid oar is in the all-wing aircraft layout body;
Said cycloid oar propelling unit comprises cycloidal oar blade, blade support, the rotating shaft of cycloid oar, actuating device and eccentric loop mapping mechanism;
Said actuating device is fixed in the all-wing aircraft layout body in-to-in actuating device housing; The power take-off of actuating device is connected through coupler with cycloid oar rotating shaft one end; The cycloid oar rotating shaft other end is captiveed joint with the blade carriage center; And the rotating shaft of cycloid oar along the circumferential direction is evenly distributed with some bulbs perpendicular to blade support plane in actuating device housing upper surface, and the center of circle of circumference is on the cycloid oar rotating shaft central axis;
The support arm that the blade support has several uniform divergence shapes to distribute, the outer end of each support arm is fixed with chuck, person in charge's beam normal-running fit of chuck and cycloidal oar blade, the cycloidal oar blade number is identical with the support arm number; Person in charge's beam of cycloidal oar blade and tubule beam parallel respectively with the rotating shaft of cycloid oar, have bulb on overhanging section of the tubule beam of cycloidal oar blade, the tubule beam cooperates with control pull rod one end employing bulb hinge in the eccentric loop mapping mechanism through bulb; In the rotating shaft of cycloid oar, also be fixed with the all-wing aircraft hatchcover; The all-wing aircraft hatchcover is with the angle of rake installing port sealing of cycloid oar; And all-wing aircraft hatchcover and all-wing aircraft layout body upper surface smooth transition; Have some grooves at all-wing aircraft hatchcover edge, the tubule beam of cycloidal oar blade is in the groove for overhanging section, and does not interfere with the all-wing aircraft hatchcover;
Eccentric loop mapping mechanism comprises control pull rod, eccentric rotary annulus, eccentric hollow cylinder positioning table and assist location pull bar; The eccentric rotary annulus along the circumferential direction is evenly distributed with some bulbs on one side; Bulb number on the eccentric rotary annulus is identical with the cycloidal oar blade number; Eccentric rotary annulus another side cooperates through bearing with eccentric hollow cylinder positioning table one end face; And the eccentric rotary annulus is coaxial with eccentric hollow cylinder positioning table; On eccentric hollow cylinder positioning table other end, also be evenly distributed with a plurality of bulbs, the bulb number on the eccentric hollow cylinder positioning table is identical with the bulb number of assist location pull bar number and actuating device housing upper surface; Eccentric hollow cylinder positioning table is connected with outside steering wheel; The control pull rod number is identical with the cycloidal oar blade number, and the bulb on the control pull rod other end and the eccentric rotary annulus adopts the bulb hinge to cooperate, and at least one control pull rod and eccentric rotary annulus connect and fix; Eccentric rotary annulus and eccentric hollow cylinder positioning table are enclosed within the rotating shaft of cycloid oar; Bulb on assist location pull bar one end and the eccentric hollow cylinder positioning table adopts the bulb hinge to cooperate, and the assist location pull bar other end cooperates with the bulb employing bulb hinge of actuating device housing upper surface.
2. the angle of rake all-wing aircraft layout of a kind of installation cycloid oar according to claim 1 aircraft; It is characterized in that: the maximum angle of attack of cycloidal oar blade is no more than 45 degree, and the maxim of eccentric rotary annulus eccentric throw is 0.707 times that cycloidal oar blade is responsible for distance between beam axis and the cycloidal oar blade tubule beam axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200299096U CN202481313U (en) | 2012-01-30 | 2012-01-30 | Flying wing aircraft with cycloidal rotor thrusters installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200299096U CN202481313U (en) | 2012-01-30 | 2012-01-30 | Flying wing aircraft with cycloidal rotor thrusters installed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202481313U true CN202481313U (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200299096U Withdrawn - After Issue CN202481313U (en) | 2012-01-30 | 2012-01-30 | Flying wing aircraft with cycloidal rotor thrusters installed |
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| Country | Link |
|---|---|
| CN (1) | CN202481313U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556335A (en) * | 2012-01-30 | 2012-07-11 | 西北工业大学 | Flying-wing layout aircraft provided with cycloidal propellers |
| US20220050476A1 (en) * | 2020-08-11 | 2022-02-17 | Pitch Aeronautics LLC | Multirotor Vertical Takeoff And Landing Aircraft With Cyclorotor For Lateral Control |
| CN116552774A (en) * | 2023-07-11 | 2023-08-08 | 北京威浮科技有限责任公司 | Cycloidal propeller and aircraft with cycloidal propeller |
-
2012
- 2012-01-30 CN CN2012200299096U patent/CN202481313U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556335A (en) * | 2012-01-30 | 2012-07-11 | 西北工业大学 | Flying-wing layout aircraft provided with cycloidal propellers |
| CN102556335B (en) * | 2012-01-30 | 2013-12-25 | 西北工业大学 | Flying-wing layout aircraft provided with cycloidal propellers |
| US20220050476A1 (en) * | 2020-08-11 | 2022-02-17 | Pitch Aeronautics LLC | Multirotor Vertical Takeoff And Landing Aircraft With Cyclorotor For Lateral Control |
| US11614754B2 (en) * | 2020-08-11 | 2023-03-28 | Pitch Aeronautics LLC | Multirotor vertical takeoff and landing aircraft with cyclorotor for lateral control |
| CN116552774A (en) * | 2023-07-11 | 2023-08-08 | 北京威浮科技有限责任公司 | Cycloidal propeller and aircraft with cycloidal propeller |
| CN116552774B (en) * | 2023-07-11 | 2023-09-22 | 北京威浮科技有限责任公司 | Cycloidal propeller and aircraft with cycloidal propeller |
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Granted publication date: 20121010 Effective date of abandoning: 20131225 |
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| RGAV | Abandon patent right to avoid regrant |