CN108639334A - A kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane - Google Patents

A kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane Download PDF

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Publication number
CN108639334A
CN108639334A CN201810781585.3A CN201810781585A CN108639334A CN 108639334 A CN108639334 A CN 108639334A CN 201810781585 A CN201810781585 A CN 201810781585A CN 108639334 A CN108639334 A CN 108639334A
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China
Prior art keywords
unmanned plane
connect
interurban
bevel gear
logistics transportation
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CN201810781585.3A
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Chinese (zh)
Inventor
张家淦
高悦
王帆
王一帆
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Individual
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Priority to CN201810781585.3A priority Critical patent/CN108639334A/en
Publication of CN108639334A publication Critical patent/CN108639334A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/22Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft
    • B64C27/28Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft with forward-propulsion propellers pivotable to act as lifting rotors
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2201/00UAVs characterised by their flight controls
    • B64U2201/20Remote controls

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention discloses a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane, including unmanned plane, ground support system, airborne signal transmission system, airborne energy resource system, onboard flight control system, rotor vert mechanical structure and empennage mechanical structure;The beneficial effects of the present invention are, the present invention can VTOL and in the air free switching to fixed-wing offline mode, and has automatic cruising, the functions such as failure automatically processes, the progress landing of smaller place can be used such as helicopter, it can possess longer voyage and loading capacity such as fixed-wing again simultaneously, can play an important role in following logistics transportation system.

Description

A kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane
Technical field
The present invention relates to logistics transportation field more particularly to a kind of interurban logistics fortune based on tilting rotor shipping unmanned plane Defeated system.
Background technology
Current interurban logistics system is based on traditional fixed-wing airfreighter, truck and each logistics and allocates site expansion fortune Make, and advantages of the present invention is clearly compared with common airfreighter or truck, it does not need excessive manual operation, from And avoid the possibility for leading to accident because of human factors such as fatigue drivings.It is of low cost, and structure is relatively simple, so One unmanned plane transport team cargo aircraft more common than a frame is more cheap, and safety does not subtract.Most importantly, it can be as gone straight up to Machine is generally in smaller place, such as parking lot or small square landing operation, and since it is similar to the offline mode of fixed-wing, it Possess the loading capacity than helicopter bigger and cruise duration.
Invention content
The purpose of the present invention:A kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane, Neng Gouti are provided High logistics system operational paradigm and reduce its cost.
To achieve the goals above, the technical scheme is that:It is a kind of based on the interurban of tilting rotor shipping unmanned plane Logistics transportation system, including unmanned plane, ground support system, airborne signal transmission system, airborne energy resource system, onboard flight control System processed, rotor vert mechanical structure and empennage mechanical structure;The airborne signal transmission system, airborne energy resource system, machine Carry that flight control system, rotor vert mechanical structure and empennage mechanical structure is arranged on the unmanned plane;Described is airborne Mode is connect signal transmission system by radio communication with the ground support system;The airborne signal transmission system point It is not connect with the airborne energy resource system and onboard flight control system.
The above-mentioned interurban logistics transportation system based on tilting rotor shipping unmanned plane, wherein the unmanned plane includes Fuselage, wing, single vertical tail, tailplane, engine nacelle, hatch door and displacement paddle;The wing is arranged described Fuselage roof;Single vertical tail and tailplane are arranged in the fuselage afterbody;Engine nacelle described in a pair It is arranged at the wing both ends;Hatch door described in a pair is arranged in the fuselage top surface;The displacement paddle is arranged in institute The engine nacelle front end stated.
The above-mentioned interurban logistics transportation system based on tilting rotor shipping unmanned plane, wherein the airborne energy system System includes generator, lithium battery and fuel tank;The generator is arranged in the engine nacelle;The lithium battery is set It sets in the fuselage inner cavity front;The fuel tank includes main fuel tank, rear portion fuel tank, upper fuel tank, soft tank;Described in a pair Main fuel tank be symmetricly set in the middle part of the fuselage inner cavity;Rear portion fuel tank described in a pair is symmetricly set in the fuselage Chamber rear portion;The upper fuel tank is arranged on the fuselage inner cavity top;Soft tank described in a pair is symmetricly set on described Wing inner cavity.
The above-mentioned interurban logistics transportation system based on tilting rotor shipping unmanned plane, wherein the airborne signal passes Defeated system includes GPRS data transmission module, image transmission module, camera and OSD module;The camera is arranged described Front fuselage, and connect with the OSD module;The OSD module is connect with the image transmission module;The figure As transmission module is connect with the GPRS data transmission module.
The above-mentioned interurban logistics transportation system based on tilting rotor shipping unmanned plane, wherein the onboard flight control System processed includes receiver, flies control plate, function module;The receiver is connect with the winged control plate;The winged control plate It is connect with the GPRS data transmission module;The function module is connect with the winged control plate.
The above-mentioned interurban logistics transportation system based on tilting rotor shipping unmanned plane, wherein support system in the ground System includes radio signal launcher, controller and earth station;The radio signal launcher and the control Device connects;Mode is connect the radio signal launcher by radio communication with the receiver;The ground It stands and mode is connect the GPRS data transmission module by radio communication;.
The above-mentioned interurban logistics transportation system based on tilting rotor shipping unmanned plane, wherein the Functional Module Include pitot meter, magnetic compass, GPS module, accelerometer, barometer, magnetometer, light stream module, ultrasonic wave module and pressure sensing Device.
The above-mentioned interurban logistics transportation system based on tilting rotor shipping unmanned plane, wherein the rotation is verted Mechanical mechanism is arranged in the engine nacelle, and the engine nacelle top surface is coated with soft covering;The rotor inclines Turn mechanical structure to include input bevel gear, the first axle sleeve, first rotating shaft, output bevel gear wheel, bindiny mechanism, the gear set that verts, pass Dynamic bevel gear;Gear drive, engine retard group, reduction gear box;The input bevel gear input terminal starts with described Machine deceleration group connects;The shaft set can rotate in first axle sleeve around the first axle sleeve axis;Described first Shaft is connect with the drive bevel gear;The output bevel gear wheel setting is on first axle set;The drive bevel gear point It is not engaged with the input bevel gear and output bevel gear wheel;The bindiny mechanism is arranged at first axle sleeve both ends, and with institute State engine nacelle connection;Described gear set one end of verting is connect with first axle sleeve, the other end and the engine retard Group connection;The gear drive verts gear set and reduction gear box is connect with described respectively.
The above-mentioned interurban logistics transportation system based on tilting rotor shipping unmanned plane, wherein the empennage machinery Structure include the second axle sleeve, rotary shaft, polished rod, the first transmission shaft, second driving shaft first bevel gear group, second bevel gear group, Brushless motor, propeller and double output shaft electric machines;Brushless motor setting on single vertical tail, and output end with it is described First transmission axis connection;Second axis is set on the tailplane, and the second driving shaft is sleeved on described In two axle sleeves;First bevel gear group is arranged between first transmission shaft and second driving shaft;The two of double output shaft electric machines A power output shaft is both provided with the reduction gear box based on worm and gear self-locking mechanism, double output shaft electric machines and two institutes The reduction gear box setting stated is in single vertical tail, and the rotary shaft is connect with double output shaft electric machines;Second cone Gear set is arranged between the rotary shaft and second driving shaft;The propeller is connect with the second bevel gear group;Five The polished rod is arranged on the tailplane.
In conclusion the beneficial effects of the present invention are, the present invention can VTOL and in the air free switching to solid Determine wing offline mode, and have automatic cruising, the functions such as failure automatically processes, can be carried out using smaller place such as helicopter Landing, while longer voyage and loading capacity can be possessed such as fixed-wing again, it being capable of the lifting in following logistics transportation system It acts on.
Description of the drawings
Fig. 1 is a kind of system diagram of the interurban logistics transportation system based on tilting rotor shipping unmanned plane of the present invention.
Fig. 2 is that a kind of structure of the interurban logistics transportation system unmanned plane based on tilting rotor shipping unmanned plane of the present invention is shown It is intended to.
Fig. 3 is a kind of interurban logistics transportation system ground support system based on tilting rotor shipping unmanned plane of the present invention System diagram.
Fig. 4 is a kind of airborne signal transmission system of interurban logistics transportation system based on tilting rotor shipping unmanned plane of the invention The system diagram of system.
Fig. 5 is a kind of airborne energy resource system of interurban logistics transportation system based on tilting rotor shipping unmanned plane of the present invention System diagram.
Fig. 6 is a kind of structural representation of the interurban logistics transportation system fuel tank based on tilting rotor shipping unmanned plane of the present invention Figure.
Fig. 7 is a kind of interurban logistics transportation system onboard flight control system based on tilting rotor shipping unmanned plane of the present invention The system diagram of system.
A kind of interurban logistics transportation system rotor based on tilting rotor shipping unmanned plane of Fig. 8 present invention verts mechanical structure Structural schematic diagram.
A kind of interurban logistics transportation system rotor based on tilting rotor shipping unmanned plane of Fig. 9 present invention verts mechanical structure Structural schematic diagram under fixed-wing pattern.
A kind of interurban logistics transportation system rotor based on tilting rotor shipping unmanned plane of Figure 10 present invention verts machinery knot Structural schematic diagram under structure VTOL pattern.
A kind of knot of the interurban logistics transportation system engine nacelle based on tilting rotor shipping unmanned plane of Figure 11 present invention Structure schematic diagram.
A kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane of Figure 12 present invention revolves empennage mechanical structure Structural schematic diagram.
A kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane of Figure 13 present invention revolves empennage mechanical structure Partial structural diagram.
Specific implementation mode
The embodiment further illustrated the present invention below in conjunction with attached drawing.
It refers to shown in attached drawing 1 to attached drawing 13, a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane, Including unmanned plane 1, ground support system 2, airborne signal transmission system 3, airborne energy resource system 4, onboard flight control system 5, Rotor verts mechanical structure 6 and empennage mechanical structure 7;The airborne signal transmission system 3, airborne flies at airborne energy resource system 4 Row control system 5, rotor vert mechanical structure 6 and empennage mechanical structure 7 is arranged on the unmanned plane 1;Described is airborne Mode is connect signal transmission system 2 by radio communication with the ground support system 2;The airborne signal transmission system 3 connect with the airborne energy resource system 4 and onboard flight control system 5 respectively.
The unmanned plane 1 includes fuselage 101, wing 102, single vertical tail 103, tailplane 104, engine nacelle 105, hatch door 106 and displacement paddle 107;The wing 102 is arranged at 101 top of fuselage;Single vertical tail 103 and tailplane 104 be arranged at 1 rear portion of fuselage;Engine nacelle 105 described in a pair is arranged in the wing 102 both ends;Hatch door 106 described in a pair is arranged in 101 top surface of fuselage;The displacement paddle 107 is arranged described 105 front end of engine nacelle.
The airborne energy resource system 4 includes generator 401, lithium battery 402 and fuel tank 403;The generator 401 is set It sets in the engine nacelle 105;The lithium battery 402 is arranged in the 101 inner cavity front of fuselage;The oil Case 403 includes main fuel tank 404, rear portion fuel tank 405, upper fuel tank 406, soft tank 407;Main fuel tank 404 described in a pair is symmetrical It is arranged in the middle part of 101 inner cavity of fuselage;Rear portion fuel tank 405 described in a pair is symmetricly set on 101 inner cavity of fuselage Rear portion;The upper fuel tank 406 is arranged on the 101 inner cavity top of fuselage;Soft tank 407 described in a pair is symmetrical arranged In 102 inner cavity of wing.
The airborne signal transmission system 3 includes GPRS data transmission module 301, image transmission module 302, camera 303 and OSD module 304;The camera 303 is arranged in 101 front end of fuselage, and connects with the OSD module 304 It connects;The OSD module 304 is connect with the image transmission module 302;The image transmission module 302 with it is described GPRS data transmission module 301 connects.
The onboard flight control system 5 includes receiver 501, flies control plate 502, function module 503;The reception Machine 501 is connect with the winged control plate 502;The winged control plate 502 is connect with the GPRS data transmission module 301;Institute The function module 503 stated is connect with the winged control plate 502.
The ground support system 2 includes radio signal launcher 201, controller 202 and earth station 203;Institute The radio signal launcher 201 stated is connect with the controller 202;The radio signal launcher 201 with Mode connects the receiver 501 by radio communication;The earth station 203 and the GPRS data transmission module 301 by radio communication mode connect.
The function module 503 includes pitot meter 504, magnetic compass 505, GPS module 506, accelerometer 507, air pressure Meter 508, magnetometer 509, light stream module 510, ultrasonic wave module 511 and pressure sensor 512.
The rotor verts some mechanical structure 6 using the transmission side based on the change rotary shaft angle of cut using bevel gear set Formula is used and is designed by the inclining rotary mechanism of core of a set of bevel gear set, and the rotation verts the setting of mechanical mechanism 6 in the hair In motivation nacelle 105, and 105 top surface of the engine nacelle is coated with soft covering 611;The rotor verts mechanical structure 6 Including input bevel gear 601, the first axle sleeve 602, first rotating shaft 603, output bevel gear wheel 604, bindiny mechanism 605, vert gear Group 606, drive bevel gear 607, gear drive 608, engine retard group 609 and reduction gear box 610;The input cone 601 input terminal of gear is connect with the engine retard group 609;The shaft 603 is sleeved in first axle sleeve 602, and It can be rotated around 602 axis of the first axle sleeve;The first rotating shaft 603 is connect with the drive bevel gear 607;The output cone 604 connecting bushing of gear can rotate in first axle sleeve 602 around 602 axis of the first axle sleeve;The biography Dynamic bevel gear 607 is engaged with the input bevel gear 601 and output bevel gear wheel 604 respectively;The bindiny mechanism 605 is arranged in institute 602 both ends of the first axle sleeve are stated, and are connect with the engine nacelle 105;606 one end of gear set and the first axle of verting 602 connection of set, the other end are connect with the engine retard group 609;The gear drive 608 respectively with the tooth that verts Wheel group 606 and reduction gear box 610 connect.
The empennage mechanical structure 7 includes the second axle sleeve 701, rotary shaft 702, polished rod 703, the first transmission shaft 704, the Two transmission shafts, 705 first bevel gear group 706, second bevel gear group 707, brushless motor 708, propeller 709 and double output shaft electric machines 710;The setting of the brushless motor 708 is on single vertical tail 103, and output end is connect with first transmission shaft 704; Second axle sleeve 701 is arranged on the tailplane 104, and the second driving shaft 705 is sleeved on second axle sleeve In 701;First bevel gear group 706 is arranged between first transmission shaft 704 and second driving shaft 705;Double shaft electricity Two power output shafts of machine 709 are both provided with the reduction gear box 710 based on worm and gear self-locking mechanism, double shafts Motor 709 and two reduction gear boxes 710 based on worm and gear self-locking mechanism are arranged in single vertical tail 103, and The rotary shaft 702 is connect with double output shaft electric machines 709;Second bevel gear group 707 is arranged in the rotary shaft 702 and second Between transmission shaft 705;The propeller 709 is connect with the second bevel gear group 707;Five polished rods 703 are arranged in institute It states on tailplane 104, which is accommodated under fixed-wing pattern in tailplane 104, only under VTOL state, rotation Shaft 702 pushes tailplane 104 to be displaced outwardly, and exposes and uses empennage internal mechanical structure 7;The mechanism can ensure two Mutually rotating speed is identical instead for the direction of rotation of empennage propeller, offsets the torsion that turns over of tail portion, and compares a motor and drive a spiral shell The scheme of paddle is revolved, the program can avoid one of electrical fault from aircraft being caused the case where accident occur, and improving it can By property.
In conclusion the beneficial effects of the present invention are, the present invention can VTOL and in the air free switching to solid Determine wing offline mode, and have automatic cruising, the functions such as failure automatically processes, can be carried out using smaller place such as helicopter Landing, while longer voyage and loading capacity can be possessed such as fixed-wing again, it being capable of the lifting in following logistics transportation system It acts on.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every utilization Equivalent structure transformation made by present specification, directly or indirectly with the technology neck for being attached to other Related products Domain is included within the scope of the present invention.

Claims (9)

1. a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane, it is characterised in that:Including unmanned plane (1), Ground support system (2), airborne signal transmission system (3), airborne energy resource system (4), onboard flight control system (5), rotor Mechanical structure of verting (6) and empennage mechanical structure (7);The airborne signal transmission system (3), airborne energy resource system (4), machine Carry flight control system (5), rotor verts mechanical structure (6) and empennage mechanical structure (7) is arranged in the unmanned plane (1) On;Mode is connect the airborne signal transmission system (2) by radio communication with the ground support system (2);It is described Airborne signal transmission system (3) connect respectively with the airborne energy resource system (4) and onboard flight control system (5).
2. a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane according to claim 1, feature It is:The unmanned plane (1) includes fuselage (101), wing (102), single vertical tail (103), tailplane (104), hair Motivation nacelle (105), hatch door (106) and displacement paddle (107);The wing (102) is arranged on fuselage (101) top Portion;Single vertical tail (103) and tailplane (104) is arranged at described fuselage (1) rear portion;Start described in a pair Machine nacelle (105) is arranged at described wing (102) both ends;Hatch door (106) described in a pair is arranged in the fuselage (101) Top surface;The displacement paddle (107) is arranged in described engine nacelle (105) front end.
3. a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane according to claim 1, feature It is:The airborne energy resource system (4) includes generator (401), lithium battery (402) and fuel tank (403);The generator (401) it is arranged in the engine nacelle (105);The lithium battery (402) is arranged in described fuselage (101) inner cavity Front;The fuel tank (403) includes main fuel tank (404), rear portion fuel tank (405), upper fuel tank (406), soft tank (407); Main fuel tank (404) described in a pair is symmetricly set in the middle part of described fuselage (101) inner cavity;Rear portion fuel tank described in a pair (405) it is symmetricly set on described fuselage (101) the inner cavity rear portion;The upper fuel tank (406) is arranged in the fuselage (101) inner cavity top;Soft tank (407) described in a pair is symmetricly set on described wing (102) inner cavity.
4. a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane according to claim 1, feature It is:The airborne signal transmission system (3) includes GPRS data transmission module (301), image transmission module (302), phase Machine (303) and OSD module (304);The camera (303) is arranged in described fuselage (101) front end, and with the OSD Module (304) connects;The OSD module (304) is connect with the image transmission module (302);The image transmitting Module (302) is connect with the GPRS data transmission module (301).
5. a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane according to claim 1, feature It is:The onboard flight control system (5) includes receiver (501), flies control plate (502), function module (503);It is described Receiver (501) connect with the winged control plate (502);The winged control plate (502) transmits mould with the GPRS data Block (301) connects;The function module (503) is connect with the winged control plate (502).
6. a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane according to claim 1, feature It is:The ground support system (2) includes radio signal launcher (201), controller (202) and earth station (203);The radio signal launcher (201) is connect with the controller (202);The radio signal hair Mode is connect injection device (201) by radio communication with the receiver (501);The earth station (203) with it is described Mode connects GPRS data transmission module (301) by radio communication.
7. a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane according to claim 1, feature It is:The function module (503) includes pitot meter (504), magnetic compass (505), GPS module (506), accelerometer (507), barometer (508), magnetometer (509), light stream module (510), ultrasonic wave module (511) and pressure sensor (512).
8. a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane according to claim 1, feature It is:The rotation verts mechanical mechanism (6) setting in the engine nacelle (105), and the engine nacelle (105) top surface is coated with soft covering (611);The rotor verts mechanical structure (6) including inputting bevel gear (601), first Axle sleeve (602), first rotating shaft (603), output bevel gear wheel (604), bindiny mechanism (605), the gear set that verts (606), transmission cone Gear (607), gear drive (608), engine retard group (609) and reduction gear box (610);The input bevel gear (601) input terminal is connect with the engine retard group (609);The shaft (603) is sleeved on first axle sleeve (602) It is interior, and can be rotated around the first axle sleeve (602) axis;The first rotating shaft (603) connects with the drive bevel gear (607) It connects;The rear shaft of the output bevel gear wheel (604) is sleeved in first axle sleeve (602);The drive bevel gear (607) point It is not engaged with the input bevel gear (601) and output bevel gear wheel (604);The bindiny mechanism (605) is arranged described first Axle sleeve (602) both ends, and connect with the engine nacelle (105);The described gear set that verts (606) one end and the first axle (602) connection is covered, the other end is connect with the engine retard group (609);The gear drive (608) respectively with it is described Vert gear set (606) and reduction gear box (610) connection.
9. a kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane according to claim 1, feature It is:The empennage mechanical structure (7) includes the second axle sleeve (701), rotary shaft (702), polished rod (703), the first transmission shaft (704), second driving shaft (705) first bevel gear group (706), second bevel gear group (707), brushless motor (708), propeller (709) and double output shaft electric machine (710);Brushless motor (708) setting is on single vertical tail (103), and output end It is connect with first transmission shaft (704);Second axle sleeve (701) is arranged on the tailplane (104), and described the Two transmission shafts (705) are sleeved in second axle sleeve (701);First bevel gear group (706) is arranged in first transmission shaft (704) between second driving shaft (705);Two power output shafts of double output shaft electric machines (709) are both provided with based on snail The reduction gear box (710) of worm and gear self-locking mechanism, double output shaft electric machines (709) and the reduction gear box described in two (710) setting is in single vertical tail (103), and the rotary shaft (702) is connect with double output shaft electric machines (709); Second bevel gear group (707) is arranged between the rotary shaft (702) and second driving shaft (705);The propeller (709) with Second bevel gear group (707) connection;Five polished rods (703) are arranged on the tailplane (104).
CN201810781585.3A 2018-07-17 2018-07-17 A kind of interurban logistics transportation system based on tilting rotor shipping unmanned plane Pending CN108639334A (en)

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Publication number Priority date Publication date Assignee Title
CN110749943A (en) * 2019-10-18 2020-02-04 武汉工程大学 Meteorological detection system based on meteorological unmanned aerial vehicle

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Publication number Priority date Publication date Assignee Title
GB441445A (en) * 1935-07-05 1936-01-20 Mangold Stephan Improvements in or relating to aircraft
CN1754777A (en) * 2004-09-30 2006-04-05 李环 Vertical take-off and landing aircraft
CN101423117A (en) * 2008-12-05 2009-05-06 北京航空航天大学 Tilt-rotor plane operated and propelled by thrust scull and slipstream rudder
CN203032935U (en) * 2012-11-20 2013-07-03 无锡市万凌钢铁有限公司 Improved transport helicopter
EP2930398A1 (en) * 2014-04-10 2015-10-14 Bell Helicopter Textron Inc. Variable speed aircraft transmission
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