CN109987224A - A kind of dynamic multi-rotor unmanned aerial vehicle of technical grade oil - Google Patents

A kind of dynamic multi-rotor unmanned aerial vehicle of technical grade oil Download PDF

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Publication number
CN109987224A
CN109987224A CN201711474620.9A CN201711474620A CN109987224A CN 109987224 A CN109987224 A CN 109987224A CN 201711474620 A CN201711474620 A CN 201711474620A CN 109987224 A CN109987224 A CN 109987224A
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CN
China
Prior art keywords
driving wheel
wheel
rotor
unmanned aerial
aerial vehicle
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Application number
CN201711474620.9A
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Chinese (zh)
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CN109987224B (en
Inventor
张哲�
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Zhang Zhe
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Shaanxi Tianyu Aeronautical Science And Technology Co Ltd
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Priority to CN201711474620.9A priority Critical patent/CN109987224B/en
Publication of CN109987224A publication Critical patent/CN109987224A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/04Helicopters
    • B64C27/08Helicopters with two or more rotors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C39/00Aircraft not otherwise provided for
    • B64C39/02Aircraft not otherwise provided for characterised by special use
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D35/00Transmitting power from power plants to propellers or rotors; Arrangements of transmissions
    • B64D35/04Transmitting power from power plants to propellers or rotors; Arrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00Type of UAV
    • B64U10/10Rotorcrafts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00Propulsion; Power supply
    • B64U50/10Propulsion
    • B64U50/11Propulsion using internal combustion piston engines

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Remote Sensing (AREA)
  • Arrangement Of Transmissions (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

The present invention provides a kind of technical grade oil to move multi-rotor unmanned aerial vehicle, Wholly-enclosed wetting change gearbox is equipped in the rack, the Wholly-enclosed wetting change gearbox includes cabinet upper casing and cabinet lower casing, machine oil filler is equipped at the top of the cabinet upper casing, the cabinet upper casing inside top is additionally provided with box sealing circle, transmission component and driving wheel are equipped between the cabinet upper casing and the cabinet lower casing, the transmission component includes ratio wheel, driving wheel and reverse wheel, the ratio wheel is equipped with driving wheel, the ratio wheel and biography wheel pass through bearing support, the driving wheel on the ratio wheel connects each rotor gearbox by belt, cabinet lower casing side is equipped with pipe clamp.A kind of technical grade oil of the present invention moves multi-rotor unmanned aerial vehicle, simple and ingenious structure, and design rationally, substantially increases the application of the dynamic unmanned plane of oil.

Description

A kind of dynamic multi-rotor unmanned aerial vehicle of technical grade oil
Technical field
The invention belongs to unmanned vehicle technical fields, move multi-rotor unmanned aerial vehicle more particularly, to a kind of technical grade oil.
Background technique
The features such as multi-rotor unmanned aerial vehicle (aircraft) is nowadays flexible with its, stable, steerable, low cost is in every field It is widely used.Present multi-rotor unmanned aerial vehicle industrial application is mainly moved with pure electric vehicle, the mixing of oil electricity, pure oil as three kinds of main knots Structure and power mode.The pure electric vehicle multi-rotor unmanned aerial vehicle biggish ratio of occupation ratio on the market.Due to being limited to battery capacity Bottleneck, the too short disadvantage of endurance are also very prominent.It is exactly because endurance is too short, so that pure electric vehicle multi-rotor unmanned aerial vehicle is each Application in field is all restricted, such as large-scale aerial survey tour, long range walking operation, large area agricultural plant protection etc. Deng.Be directed to pure electric vehicle multi-rotor unmanned aerial vehicle cannot long endurance work the shortcomings that, currently on the market just oil move more rotors nobody Machine design research and development are brought into schedule.Use fuel oil as power multi-rotor unmanned aerial vehicle primarily now there are two types of.One is oily electricity mixing Power multi-rotor unmanned aerial vehicle, one is the dynamic multi-rotor unmanned aerial vehicles of pure oil.Oil electric mixed dynamic multi-rotor unmanned aerial vehicle, than pure in endurance Electronic multi-rotor unmanned aerial vehicle will increase, still, due to there is very big lack in filling on energy efficiency and monomer weight for battery It falls into, so that this structure is since the optimization of fuselage is there are difficulty, is difficult in load-carrying and endurance this two o'clock satisfactory to both parties.Invention is special A kind of multi-rotor unmanned aerial vehicle disclosed in sharp CN201620835876.2 reduces transport and space when storage by folding rotor, And have diversified forms mode, under the form mode of ground, it is greatly improved the cruising ability of unmanned plane, but itself and unresolved nothing Man-machine skyborne continuation of the journey problem and load-carrying problem.
Summary of the invention
In view of this, the present invention is directed to propose a kind of dynamic multi-rotor unmanned aerial vehicle of technical grade oil, dynamic to solve existing single-shot oil There are the problem of.The various occasions of the various operations that need to leave a blank for a long time are adapted to comprehensively.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of dynamic multi-rotor unmanned aerial vehicle of technical grade oil, it is described including rack and positioned at the rotor arm of four side wall of rack Rotor arm end is equipped with rotor, and the rotor connect with the rotor gearbox for being placed in rotor arm end, sets in the rack There is Wholly-enclosed wetting change gearbox, the Wholly-enclosed wetting change gearbox includes cabinet upper casing and cabinet lower casing, the case Be equipped with machine oil filler at the top of body upper casing, the cabinet upper casing inside top is additionally provided with box sealing circle, the cabinet upper casing and Transmission component and driving wheel are equipped between the cabinet lower casing, the transmission component includes ratio wheel, driving wheel and reverse wheel, institute It states ratio wheel and passes through bearing support, the biography on the ratio wheel equipped with driving wheel, the ratio wheel and the driving wheel Driving wheel connects rotor gearbox by belt, and cabinet lower casing side is equipped with pipe clamp.
Further, the bottom of the frame two sides are equipped with supporting leg;
Further, the ratio wheel and the equal more than one of reverse wheel quantity, the driving wheel quantity are one;
It further, further include engine, the engine is equipped with output shaft, and the engine can be placed in the rack Lower section can also be placed in the rack side;
Further, the engine is located at immediately below the rack, the transmission component include ratio wheel, driving wheel and Reverse wheel is additionally provided with the input shaft connecting by the bearing with the driving wheel, the input shaft and institute on the driving wheel It states output shaft to be connected, the driving wheel two sides are respectively equipped with reverse wheel, the other two sides of driving wheel and two commutations It takes turns the equal internal messing in side and connects ratio wheel;
Further, the engine is located at the rack side, and the transmission component includes multiple intermeshing subtracts Speed wheel and a driving wheel, the driving wheel are located in one of the side of the ratio wheel, and the driving wheel with described in this Ratio wheel engagement connection, multiple ratio wheels mutually engage connection, and the driving wheel, which is equipped with, passes through the bearing and master The driving wheel of driving wheel connection connects, and the driving wheel being arranged on the output shaft and the driving wheel of engine passes through described Drive pulley connection;
Further, the engine is detachable.
Compared with the existing technology, a kind of technical grade oil of the present invention moves multi-rotor unmanned aerial vehicle and has the advantage that
1. a kind of technical grade oil of the present invention moves multi-rotor unmanned aerial vehicle, simple and ingenious structure, design rationally, mentions significantly The high application of oily dynamic unmanned plane;
It, can be according to actual use situation, according to difference 2. a kind of technical grade oil of the present invention moves multi-rotor unmanned aerial vehicle Load-carrying occasion machine operation can be started using different capacity, have a better conformability;
3. a kind of technical grade oil of the present invention moves multi-rotor unmanned aerial vehicle can by a single engine as power output To ensure that more rotor output end revolving speeds are consistent, and a pair of of multi output can be realized by single Wholly-enclosed wetting change gearbox;
4. a kind of technical grade oil of the present invention moves multi-rotor unmanned aerial vehicle, add in the Wholly-enclosed wetting change gearbox Lubricating oil is infused, lubricating oil plays heat dissipation and lubrication to working gear, substantially increases the work of Wholly-enclosed wetting change gearbox Make the service life.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of overall structure diagram of the dynamic multi-rotor unmanned aerial vehicle of technical grade oil described in the embodiment of the present invention;
Under Fig. 2 is located at rack just for the engine that a kind of technical grade oil moves multi-rotor unmanned aerial vehicle described in the embodiment of the present invention Wholly-enclosed wetting change gearbox and engine connection structure and Wholly-enclosed wetting change gearbox internal junction when side or surface Structure schematic diagram;
Fig. 3 is located at rack side for the engine that a kind of technical grade oil moves multi-rotor unmanned aerial vehicle described in the embodiment of the present invention When Wholly-enclosed wetting change gearbox and engine attachment structure schematic diagram;
Under Fig. 4 is located at rack just for the engine that a kind of technical grade oil moves multi-rotor unmanned aerial vehicle described in the embodiment of the present invention Wholly-enclosed wetting change gearbox schematic diagram of internal structure when square;
Under Fig. 5 is located at rack just for the engine that a kind of technical grade oil moves multi-rotor unmanned aerial vehicle described in the embodiment of the present invention When square inside Wholly-enclosed wetting change gearbox and with engine connection structure side sectional view;
Under Fig. 6 is located at rack just for the engine that a kind of technical grade oil moves multi-rotor unmanned aerial vehicle described in the embodiment of the present invention When square inside Wholly-enclosed wetting change gearbox and with engine connection structure another side side sectional view.
Description of symbols:
1- bearing, 2- driving wheel, 3- cabinet upper casing, 4- cabinet lower casing, 5- engine, 6- dextrorotation gear wheel, 7- are left-handed big Gear, 8- pinion gear, 9- belt, 10- pipe clamp, 11- input shaft, 12- machine oil filler, 13- box sealing circle, 14- are totally-enclosed Wet type change gearbox, 15- rack, 16- supporting leg, 17- rotor arm, 18- rotor gearbox, 19- rotor, 20- output shaft, 21- Transmission component, 22- drive pulley.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Such as Fig. 1~shown, a kind of technical grade oil moves multi-rotor unmanned aerial vehicle, including rack 15 and is located at 15 4 side of rack The rotor arm 17 of wall, 17 end of rotor arm are equipped with rotor 19, the rotor 19 and the rotation for being placed in 17 end of rotor arm Wing gearbox 18 connects, and 15 two sides of the bottom of rack are equipped with supporting leg 16, is equipped with Wholly-enclosed wetting speed change in the rack 15 and passes Dynamic case 14, the Wholly-enclosed wetting change gearbox 14 include cabinet upper casing 3 and cabinet lower casing 4, are set at the top of the cabinet upper casing 3 Organic oil filler 12,3 inside top of cabinet upper casing are additionally provided with box sealing circle 13, the cabinet upper casing 3 and the case Transmission component 21 and driving wheel 2 are equipped between body lower casing 4, the transmission component 21 includes ratio wheel 6, driving wheel 7 and reverse wheel 8, the ratio wheel 6 is equipped with driving wheel 2, and the ratio wheel 6 is supported with the driving wheel 2 by bearing 1, the ratio wheel 6 On the driving wheel 2 by belt 9 connect rotor gearbox 18,4 side of cabinet lower casing be equipped with pipe clamp 10.
The ratio wheel 6 and the equal more than one of 8 quantity of reverse wheel, 7 quantity of driving wheel are one.
It further include engine 5, the engine 5 is equipped with output shaft 20, and the engine 5 is detachable, the engine 5 15 lower section of rack can be placed in and be also placed in 15 side of rack.
Institute when the engine 5 is located at 15 underface of rack, in the Wholly-enclosed wetting change gearbox 14 Stating transmission component 21 includes ratio wheel 6, driving wheel 7 and reverse wheel 8, is additionally provided on the driving wheel 7 through the bearing 1 and institute The input shaft 11 of the connection of driving wheel 7 is stated, the input shaft 11 is connected with the output shaft 15,7 two sides of the driving wheel difference Equipped with reverse wheel 8, the other two sides of the driving wheel 7 connect ratio wheel 6 with two equal internal messings in 8 side of reverse wheel.It is described 7 quantity of driving wheel is one, the ratio wheel 6 and the equal more than one of 8 quantity of reverse wheel, and described in adjacent to each other two The rotation direction of ratio wheel 6 on the contrary, and the quantity of the two be not limited to quantity drawn in figure.
Suitable engine 5 is selected according to the practical load-carrying of unmanned vehicle and working environment when use and is installed, is started Machine 5 is connected with Wholly-enclosed wetting change gearbox 14 constitutes power output, and engine 5 works, and output shaft 20 imparts power to Input shaft 11, input shaft 11 drive driving wheel 7 to rotate, and driving wheel 7 drives the reverse wheel 8 of 7 two sides of driving wheel to rotate, reverse wheel 8 Ratio wheel 6 is driven to rotate, and adjacent 6 rotation direction of ratio wheel is on the contrary, ratio wheel 6 rotation drives and is arranged on ratio wheel 6 Driving wheel 2 rotates, and driving wheel 2 drives rotor gearbox 18 to work by belt 9, can be flight so that rotor 19 be made to rotate Device normal/cruise, i.e. engine 5 be connected with Wholly-enclosed wetting change gearbox 14 constitute power output drive belt 9 rotate, And power is passed to rotor by belt 9 by the power output constituted that is connected with Wholly-enclosed wetting change gearbox 14 of engine 5 18 end of gearbox, rotor gearbox 18 change lift size by changing the screw pitch of rotor 19, realize the flight work of unmanned plane Make.
In other embodiment of the invention, the configuration of freedom and flexibility can also be carried out for engine present position, So as to give full play of technical advantage of the invention.Illustrative explanation just is carried out to this below.
The engine 5 is located at 15 side of rack, the transmission in the Wholly-enclosed wetting change gearbox 14 Component 21 includes multiple intermeshing ratio wheels 6 and a driving wheel 7, and the driving wheel 7 is located in one of the deceleration The side of wheel 6, and the driving wheel 7 engages connection with ratio wheel 6 described in this, multiple ratio wheels 6 mutually engage connection, The driving wheel 7 is equipped with the connection of the driving wheel 2 being connect with driving wheel 7 by the bearing 1, engine 5 it is described defeated The driving wheel 2 being arranged on shaft 20 and the driving wheel 7 is connect by the drive pulley 22.
Suitable engine 5 is selected according to the practical load-carrying of unmanned vehicle and working environment when use and is installed, is started Machine 5 is connected with Wholly-enclosed wetting change gearbox 14 constitutes power output, the output shaft of engine 5 by drive pulley 22 (or The form (in figure and being not drawn into) of transmission shaft) drive the transmission that is arranged on driving wheel 7 in Wholly-enclosed wetting change gearbox 14 2 rotation of wheel, so that driving wheel 7 be driven to rotate, driving wheel 7 drives multiple intermeshing ratio wheels 6 to rotate, and adjacent two For the rotation direction of ratio wheel 6 on the contrary, the rotation of ratio wheel 6 drives the driving wheel 2 being arranged on ratio wheel 6 to rotate, driving wheel 2 passes through skin Band 9 drives rotor gearbox 18 to work, and driving rotor 19 rotates, i.e., engine 5 is connected with Wholly-enclosed wetting change gearbox 14 The power output of composition drives belt 9 to rotate, and engine 5 is connected the power of composition with Wholly-enclosed wetting change gearbox 14 Power is passed to 18 end of rotor gearbox by belt 9 by output, and rotor gearbox 18 is changed by changing the screw pitch of rotor 19 Lift size realizes the working flight of unmanned plane.
Unmanned plane is used as power output by a single engine 5, it can be ensured that and 19 revolving speed of rotor of more rotor output ends is consistent, And a pair of of multi output can be realized by single Wholly-enclosed wetting change gearbox 14.
Lubricating oil is added into Wholly-enclosed wetting change gearbox 14 by machine oil filler 12, so that in transmission device 21 Ratio wheel 6, driving wheel 7 and supporting roller 8 infiltrate in lubricating oil, guarantee transmission component 21 during high speed operation, still Cocoa keeps the state that is meshed, and keeps the element in transmission component 21 rotary more smooth.
When the engine 5 is placed in 15 surface of rack, the internal structure of Wholly-enclosed wetting change gearbox 14 with And its it is placed in the engine 5 with the connection type of engine 5 consistent when 15 underface of rack;The engine 5 When being placed in 15 surface of rack and engine 5 be connected with Wholly-enclosed wetting change gearbox 14 constitute power output form It is consistent when being placed in 15 underface of rack with the engine 5, therefore only describe the engine 5 in figure and be placed in the rack When 15 surface, engine 5 and 14 connection structure diagram of Wholly-enclosed wetting change gearbox.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, either The invention product using when the orientation or positional relationship usually put, be merely for convenience of describing the description that simplifies of the invention, and It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore It is not considered as limiting the invention.It is only used for distinguishing description in addition, belonging to " first ", " second ", " third " etc., and cannot It is construed as to imply that or implies relative importance.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (7)

1. a kind of technical grade oil moves multi-rotor unmanned aerial vehicle, including rack (15) and positioned at the rotor arm of (15) four side wall of rack (17), rotor arm (17) end is equipped with rotor (19), the rotor (19) and the rotation for being placed in rotor arm (17) end Wing gearbox (18) connection, it is characterised in that: Wholly-enclosed wetting change gearbox (14) are equipped in the rack (15), it is described complete Closing wet type change gearbox (14) includes cabinet upper casing (3) and cabinet lower casing (4), is equipped with machine at the top of the cabinet upper casing (3) Oil filler (12), cabinet upper casing (3) inside top are additionally provided with box sealing circle (13), the cabinet upper casing (3) and institute It states and is equipped with transmission component (21) and driving wheel (2) between cabinet lower casing (4), the transmission component (21) includes ratio wheel (6), master Driving wheel (7) and reverse wheel (8), the ratio wheel (6) are equipped with driving wheel (2), the ratio wheel (6) and the driving wheel (2) It being supported by bearing (1), the driving wheel (2) on the ratio wheel (6) connects rotor gearbox (18) by belt (9), Cabinet lower casing (4) side is equipped with pipe clamp (10).
2. a kind of technical grade oil according to claim 1 moves multi-rotor unmanned aerial vehicle, it is characterised in that: rack (15) bottom Portion two sides are equipped with supporting leg (16).
3. a kind of technical grade oil according to claim 1 moves multi-rotor unmanned aerial vehicle, it is characterised in that: the ratio wheel (6) With the equal more than one of the reverse wheel (8) quantity, driving wheel (7) quantity is one.
4. a kind of technical grade oil according to claim 3 moves multi-rotor unmanned aerial vehicle, it is characterised in that: further include engine (5), the engine (5) is equipped with output shaft (20), and the engine (5) can be placed in below the rack (15) and also be placed in Rack (15) side.
5. a kind of technical grade oil according to claim 4 moves multi-rotor unmanned aerial vehicle, it is characterised in that: the engine (5) Immediately below the rack (15), the transmission component (21) includes ratio wheel (6), driving wheel (7) and reverse wheel (8), institute State the input shaft (11) for being additionally provided on driving wheel (7) and connecting by the bearing (1) with the driving wheel (7), the input shaft (11) it is connected with the output shaft (15), driving wheel (7) two sides are respectively equipped with reverse wheel (8), and the driving wheel (7) is another Outer two sides connect ratio wheel (6) with two equal internal messings in reverse wheel (8) side.
6. a kind of technical grade oil according to claim 4 moves multi-rotor unmanned aerial vehicle, it is characterised in that: the engine (5) Positioned at the rack (15) side, the transmission component (21) includes multiple intermeshing ratio wheels (6) and a driving wheel (7), the driving wheel (7) is located in one of the side of the ratio wheel (6), and the driving wheel (7) and the deceleration (6) engagement connection is taken turns, multiple ratio wheels (6) mutually engage connection, and the driving wheel (7), which is equipped with, passes through the bearing (1) driving wheel (2) connection being connect with driving wheel (7), the output shaft (20) and the driving wheel of engine (5) (7) driving wheel (2) being arranged on is connected by the drive pulley (22).
7. a kind of technical grade oil according to claim 4 moves multi-rotor unmanned aerial vehicle, it is characterised in that: the engine (5) Detachably.
CN201711474620.9A 2017-12-29 2017-12-29 Industrial-grade oil-driven multi-rotor unmanned aerial vehicle Active CN109987224B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN109987224B CN109987224B (en) 2024-04-02

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1325704A (en) * 1962-03-14 1963-05-03 Sud Aviation Further development of gearboxes for single-rotor helicopters with several turbines
CN104859838A (en) * 2015-06-03 2015-08-26 中恒天信(天津)航空科技有限公司 Oil-driving multi-rotor unmanned flying platform
CN105775120A (en) * 2016-04-15 2016-07-20 广州市派飞科技有限公司 Multi-rotor unmanned aerial vehicle
CN106986009A (en) * 2017-03-08 2017-07-28 贾杰 Redundance dynamical system super large loads many rotor flying platforms
CN107235142A (en) * 2016-03-28 2017-10-10 冯江 The oil of vertical engine center driving moves many rotor agricultural spray aircraft of differential speed type
CN107235148A (en) * 2016-03-28 2017-10-10 冯江 The many rotor agricultural spray aircraft of the dynamic bevel gear differential speed type of oil
CN207773475U (en) * 2017-12-29 2018-08-28 陕西天宇航空科技有限公司 A kind of dynamic multi-rotor unmanned aerial vehicle of technical grade oil

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1325704A (en) * 1962-03-14 1963-05-03 Sud Aviation Further development of gearboxes for single-rotor helicopters with several turbines
CN104859838A (en) * 2015-06-03 2015-08-26 中恒天信(天津)航空科技有限公司 Oil-driving multi-rotor unmanned flying platform
CN107235142A (en) * 2016-03-28 2017-10-10 冯江 The oil of vertical engine center driving moves many rotor agricultural spray aircraft of differential speed type
CN107235148A (en) * 2016-03-28 2017-10-10 冯江 The many rotor agricultural spray aircraft of the dynamic bevel gear differential speed type of oil
CN105775120A (en) * 2016-04-15 2016-07-20 广州市派飞科技有限公司 Multi-rotor unmanned aerial vehicle
CN106986009A (en) * 2017-03-08 2017-07-28 贾杰 Redundance dynamical system super large loads many rotor flying platforms
CN207773475U (en) * 2017-12-29 2018-08-28 陕西天宇航空科技有限公司 A kind of dynamic multi-rotor unmanned aerial vehicle of technical grade oil

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