CN205652343U - Unmanned aerial vehicle with landing gear and fixing device - Google Patents

Abstract

The utility model discloses an unmanned aerial vehicle with landing gear and fixing device, including fuselage, main rotor, the tailspin wing, steering wheel, engine and reducing gear box, the reducing gear box with the engine is connected, unmanned aerial vehicle with landing gear and fixing device still includes: landing gear, landing gear is fixed in the bottom of fuselage is with right unmanned aerial vehicle with landing gear and fixing device supports when descending, fixing device, the fixing device cover is established on the tail transmission shaft, and with fuselage fixed connection is in order to incite somebody to action the tail transmission shaft with fuselage relatively fixed. The utility model provides a because there is one section longer axle body distance in the tail transmission shaft in that the fuselage of unmanned helicopter is inside among the prior art, and producing very easily at flight in -process tail transmission shaft of causing is beated, is unfavorable for the technical defect of the smooth flight of unmanned helicopter.

Description

There is the unmanned plane of take-off and landing device and fixing device

Technical field

This utility model relates to unmanned air vehicle technique field, particularly to having take-off and landing device and fixing device Unmanned plane.

Background technology

UAV is called for short " unmanned plane ", is to utilize radio robot and the program provided for oneself Control the most manned aircraft that device is handled.Without driving cabin on machine, but automatic pilot, program are installed Control the equipment such as device, signal pickup assembly.On ground, naval vessels or machine tool remote control station personnel pass through thunder The equipment such as reach, it be tracked, position, remote control, remote measurement and Digital Transmission.Can be distant at radio Take off as conventional airplane under control or launch with booster rocket, it is possible to being taken to aerial throwing by machine tool Let row fly away.

In prior art, the tail transmission shaft within depopulated helicopter is for being passed by the driving force of electromotor Move in tail rotor, then drive tail rotor to rotate.But due to tail rotor distance electromotor away from From farther out, this allows for tail transmission shaft and there is one section of longer axle body in the fuselage interior of depopulated helicopter Distance, is very easy to generation in flight course and beats, be unfavorable for the smooth flight of depopulated helicopter.

Utility model content

This utility model provides a kind of unmanned plane with take-off and landing device and fixing device, solves existing Owing to tail transmission shaft is in the axle body distance of the fuselage interior existence one section longer of depopulated helicopter in technology, And the tail transmission shaft in flight course caused is very easy to generation and beats, it is unfavorable for depopulated helicopter The technological deficiency of smooth flight.

For solving above-mentioned technical problem, this utility model provides one and has take-off and landing device and fixing dress The unmanned plane put, including fuselage, main rotor, tail rotor, steering wheel, electromotor and reduction box, described Reduction box is connected with described electromotor, and wherein, described main rotor can by final drive shaft and described fuselage Fixing connection rotatably；Described tail rotor is fixedly installed on the afterbody of described fuselage, and by tail transmission Axle is rotatably fixed with described fuselage and is connected；Described electromotor and described main rotor and described tail rotor Connecting, be used for driving described main rotor and described tail rotor to rotate, described steering wheel is fixed on described fuselage Inside；The described unmanned plane with take-off and landing device and fixing device also includes: fixing device, described Fixing device is set on described tail transmission shaft, and fixing with described fuselage is connected, to be passed by described tail Moving axis and described fuselage are relatively fixed.Take-off and landing device, described take-off and landing device is fixed on the end of described fuselage Portion, to be supported during to the described unmanned plane landing with take-off and landing device and fixing device.

Optionally, described take-off and landing device includes: undercarriage, and described undercarriage is fixedly installed on described machine The bottom of body；And offer the first fixing hole on described undercarriage；Brake wheel, described brake wheel and institute State undercarriage and be removably secured connection at described first fixing hole so that described in there is take-off and landing device Directly contacted with ground by brake wheel in descent with the unmanned plane of fixing device.

Optionally, described brake wheel includes: rotate wheel, and described rotation wheel connection has a rotary shaft, and The described wheel that rotates can rotate around the centrage of described rotary shaft；Connecting plate, one end of described connecting plate with Described rotary shaft is fixing to be connected；Controlling bar, described control bar is detachable with the other end of described connecting plate Fix connection；Wherein, described control bar moves up or down, to drive described connecting plate to rotate Regulate described rotation and take turns the height relative to described undercarriage.

Optionally, described connecting plate offers the first connecting hole, the second connecting hole and the second fixing hole； Described second fixed hole position between described first connecting hole and described second connecting hole, described rotary shaft It is located in described first connecting hole；One end of described control bar is provided with a fixed part, described fixing Portion is located in described second connecting hole.

Optionally, described control bar passes through latch or clip with described connecting plate at described second connecting hole Place is fixing to be connected.

Optionally, described brake wheel is connected by fixture is fixing with described undercarriage；Described fixture It is specially latch.

Optionally, described fixing device includes:

First sleeve；And

Fixed plate；Wherein, described first set jacket casing is located on described tail transmission shaft, described fixing sleeve-board It is located on described first sleeve, and the outside of described fixed plate is fixed with described fuselage and is connected, to pass through Described first sleeve and described fixed plate are by firm being fixed in described fuselage of described tail transmission shaft Portion, to prevent described tail transmission shaft from beating.

Optionally, described fixing device also includes:

Limiting plate, wherein,

Described fixed plate offers the first hole, location, and the aperture in described first hole, location is more than described first The excircle diameter of sleeve, makes described first sleeve be located in described first hole, location；

Described limiting plate offers the second hole, location, and the aperture in described second hole, location is more than described first The excircle diameter of sleeve, makes described first sleeve be located in described second hole, location；

Described limiting plate is connected by fixing with described fixed plate.

Optionally,

All offering screwed hole in described limiting plate and described fixed plate, described limiting plate is fixing with described Fixing connection between plate is threaded.

Optionally, the rounded shape of described fixed plate.

The application has the beneficial effect that:

(1) the application by arrange brake wheel reduce described in there is the unmanned of take-off and landing device and fixing device The abrasion of described undercarriage when machine rises and falls, and described brake wheel is manually controllable, simple in construction and conveniently tearing open Unload.

(2) the application sets up fixing device by setting, is effectively prevented and has take-off and landing device with solid That determines that the unmanned plane of device causes owing to tail transmission shaft is long in flight course easily beats Technological deficiency.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will In describing embodiment, the required accompanying drawing used is briefly described, it should be apparent that, in describing below Accompanying drawing be only embodiments more of the present utility model.

Fig. 1 is in the application one better embodiment, has the unmanned plane of take-off and landing device and fixing device Structural representation；

Fig. 2 is in the another better embodiment of the application, has take-off and landing device and fixing device nobody The structural representation of machine；

Fig. 3 is the structural representation of fixing device in Fig. 1；

Fig. 4 is the structural representation of the application chiller；

Fig. 5 is the structural representation of the application reduction box；

Fig. 6 is the partial view of a support component in Fig. 2；

Fig. 7 be in Fig. 1 brake wheel structural representation；

Fig. 8 is the right view of brake wheel in Fig. 7.

Detailed description of the invention

In order to be better understood from technique scheme, below in conjunction with Figure of description and concrete enforcement Technique scheme is described in detail by mode.

Refer to Fig. 1 and Fig. 2, a kind of nothing with take-off and landing device and fixing device that the application provides Man-machine 100, described in there is the unmanned plane of take-off and landing device and fixing device at least include fuselage 1, main rotor 2, tail rotor 3 and electromotor 4, described main rotor 2 rotates to provide lifting force, described tail rotor 3 Rotate with offset described main rotor 2 rotate time produce moment of torsion, with ensure described in have take-off and landing device and Unmanned plane 100 smooth flight of fixing device.

Concrete, referring to Fig. 3, tail transmission shaft 7 is for being transferred to by the driving force of electromotor 4 Tail rotor 3.Due to distant apart from described electromotor 4 of described tail rotor 3, described tail transmission Axle 7 easily produces in-flight at the unmanned plane 100 with take-off and landing device and fixing device beats.And this Tail transmission shaft 7 is connected by the fixing device 8 that application provides with fuselage 1, with fixing tail transmission shaft 7, Reduce the amplitude of beating of described tail transmission shaft 7.Described fixing device 8 includes the first sleeve 82, fixes Plate 81 and limiting plate 83, described first sleeve 82 is set on described tail transmission shaft 7, described fixing The outside of plate 81 is fixing with described fuselage 1 to be connected, and described fixed plate 81 offers the first hole, location, The aperture in described first hole, location, more than the excircle diameter of described first sleeve 82, makes described first set Cylinder 82 is located in described first hole, location.Described limiting plate 83 offers the second hole, location, described The aperture of the second hole, location, more than the excircle diameter of described first sleeve 82, makes described first sleeve 82 are located in described second hole, location.Described limiting plate 83 is with described fixed plate 81 by bolt even Connect, and by being provided with surplus between bolt and screwed hole, reduce beating of tail transmission shaft 7, and It is hardly damaged described tail transmission shaft 7.Concrete, on described limiting plate 83 and described fixed plate 81 all Offer screwed hole, and use and leave the bolt of surplus with described screwed hole and be located in described screwed hole With fixing described fixed plate 81 and described limiting plate 83, reduce beating of described tail transmission shaft 7, And it is hardly damaged described tail transmission shaft 7.By arranging the first sleeve 82, described first sleeve 82 is sheathed In described tail transmission shaft 7, to avoid described tail transmission shaft 7 and described limiting plate 83 or described fixing The direct friction of plate 81 and wear and tear, improve the life-span of described tail transmission shaft 7.

Further, incorporated by reference to Fig. 1-2 in the lump refering to 4-5, the embodiment of the present application additionally provides one Chiller.Reduction box 12 is connected with described electromotor 4, for the power to the output of described electromotor 4 Carry out regulator drive.Described chiller includes that at least one cooler bin 13, described cooler bin 13 wrap Include the first oil-in and first oil-out corresponding with described first oil-in；Described reduction box 12 Including the second oil-in and second oil-out corresponding with described second oil-in；Described first oil-feed Mouth connects with described second oil-out, it is preferred that described first oil-in leads to described second oil-out Cross first hose connection and connect；Described first oil-out connects with described second oil-in, it is preferred that Described first oil-out and described second oil-in are hose connection and connect by second.And the application is logical Cross a sheathed worm structure on the gear shaft in described reduction box 12 so that described worm structure rotates Time the gear oil in described reduction box 12 is pressed onto in described cooler bin 13, make described in there is the dress that rises and falls The fuselage interior structure putting the unmanned plane 100 with fixing device cools down more abundant.Certainly, in the application The peripheral position of reduction box 12 and cooler bin 13 is also respectively provided with fin, dissipates with further reinforcement Thermal effect.As preferably, this fin can be aluminium flake.

Based on same utility model design, the application has take-off and landing device and fixing device described It is also equipped with a chiller at the reduction box 12 that tail rotor 3 structure division of unmanned plane 100 is arranged, The common chiller 100 being applied to have the unmanned plane of take-off and landing device and fixing device often cools down All the Local cooling used, by adding gear oil, and be applied to have described in relying on take-off and landing device and In the chiller 100 of the unmanned plane of fixing device, dispel the heat in the gear-box surface of reduction box 12, should Type of cooling heat radiation is slow, and is only capable of being applied to have the unmanned of take-off and landing device and fixing device to described Dispelling the heat in local in the chiller 100 of machine, can not obtain good radiating effect.This Shen The chiller 100 being applied to have the unmanned plane of take-off and landing device and fixing device that please provide also includes Afterbody reduction box 12 and chiller.Concrete, described reduction box 12 is connected with described electromotor 4, Power for exporting described electromotor 4 carries out regulator drive.Described be applied to have take-off and landing device and The chiller 100 of the unmanned plane of fixing device also includes at least one cooler bin 13, described cooler bin 13 include the first oil-in and first oil-out corresponding with described first oil-in；Described reduction box 12 include the second oil-in and second oil-out corresponding with described second oil-in；Described first enters Hydraulic fluid port connects with described second oil-out, it is preferred that described first oil-in and described second oil-out By hose connection and connect；Described first oil-out connects with described second oil-in, it is preferred that Described first oil-out passes through hose connection with described second oil-in and connects.And the application passes through A sheathed worm structure on gear shaft in described reduction box 12 so that will when described worm structure rotates Gear oil in described reduction box 12 is pressed onto in described cooler bin 13, makes have take-off and landing device with fixing The fuselage interior structure cooling of the unmanned plane 100 of device is more abundant.

Further, please continue to refer to Fig. 4, present invention also provides a kind of thrust amplifying mechanism 9, with Steering wheel connects；Described steering wheel flies for the unmanned plane 100 controlling to have take-off and landing device and fixing device Attitude and track.Described thrust amplifying mechanism 9 increases the one-level transmission with described steering wheel to amplify steering wheel The thrust produced, reduces energy loss.Concrete, described thrust amplifying mechanism 9 includes the first transmission Bar the 91, second drive link 93 and driver plate 92, described driver plate 92 includes 1: 921, second Point 923 and thirdly 922.Described driver plate 92 respectively with described first drive link 91 and described Two drive links 93 connect；One end of described first drive link 91 is force side, described first drive link One end of 91 is fixing with described fuselage 1 to be connected, the other end of described first drive link 91 and described biography Dynamic plate 92 is fixing at described 1: 921 to be connected, and described first drive link 91 can be relatively described 1: 921 rotates.One end of described second drive link 93 and described driver plate 92 are described second Fix at point 923 and connect, and described second drive link 93 can rotate relative to described second point 923, institute The other end stating the second drive link 93 is connected with described steering wheel.Described driver plate 92 is thirdly 922 Place is connected with described fuselage 1, and described driver plate 92 can relative to described in thirdly 922 rotate.Pass through First drive link the 91, second drive link 93 is set and driver plate 92 increases primary transmission and amplifies described The thrust of steering wheel, reduces energy loss.

Preferably, described first drive link 91 and described driver plate 92 are hinged at 1: 921； Described second drive link 93 and described driver plate 92 are hinged at second point 923；Described driver plate 92 With described fuselage 1 at thirdly 922 hinged.

Preferably, described 1: 921, second point 923 and thirdly 922 position triangular in shape.

Further, refer to Fig. 6, present invention also provides a kind of support component 11, be applied to tool Having the unmanned plane 100 of take-off and landing device and fixing device, the support component 11 that the application provides is arranged on institute State in fuselage 1, for supporting and fix the spacing collar of described final drive shaft 10.Described support component 11 by using supported at three point, and supporting construction is stable and has take-off and landing device and fixing device to described Unmanned plane 100 flight course can play the effect of damping.Concrete, described support component 11 includes First bar the 111, second bar 113 and positioning seat 114；One end of described first bar 111 and described fuselage 1 is removably secured connection, and the other end of described first bar 111 offers a groove；Described second One end of bar 113 is set in described groove, and the end of one end of described second bar 113 is recessed with described Put in the inwall of groove and be provided with one or more elastic ball 112 so that described first bar 111 and described the Stress between two bars 113 is buffered, and reduces vibrations.

In the present embodiment, described elastic ball 112 is baton round；Another of described second bar 113 End is provided with the first lug, and described first lug offers the first through hole, the one of described positioning seat 114 End is provided with the second lug, and described second lug offers the second through hole mated with described first through hole, Described first through hole is bolted with described second through hole, makes described second bar 113 energy institute relatively State positioning seat 114 to rotate.In order to reduce the vibrations of described support component 11, described positioning seat further The other end of 114 is also arranged with a resilient sleeve, and described resilient sleeve is I-shaped, described resilient sleeve It is set on described positioning seat 114, and the groove of the I-shaped of described resilient sleeve is fastened on described On the fuselage 1 of the unmanned plane 100 with take-off and landing device and fixing device, so that described positioning seat 114 Fix with described fuselage 1 and be connected.

In the present embodiment, described resilient sleeve is rubber sleeve.Improve further by arranging resilient sleeve The shock resistance of a support component 11 described in.Described first bar 111 passes through socket with described second bar 113, And it is provided with elastic ball 112 between described first bar 111 and described second bar 113, also improve institute State the shock resistance of a support component 11.The application uses described first bar 111 and described second bar 113 By socket, and it is provided with elastic ball 112 between described first bar 111 and described second bar 113, Instead of the hinged etc. of routine, described first bar 111 and described second bar 113 are ensured by pretightning force The reliability and stability connected, on the one hand improves the shock resistance of described support component 11, another Aspect, adds the cushion effect after member stress, it is to avoid described support component 11 by crossing large impact, Improve the life-span of described support component 11.

Further, incorporated by reference to Fig. 1-2 in the lump refering to Fig. 7-8, the present embodiment additionally provides one and rises and falls Device, for take-off and landing device, including a undercarriage 5 and brake wheel 6, described undercarriage 5 is solid Surely the bottom of described fuselage 1 it is arranged on.Described brake wheel 6 is removably secured with described undercarriage 5 Connect.Being provided for of described brake wheel 6 has the unmanned of take-off and landing device and fixing device described in reducing Machine 100 is the abrasion of described undercarriage 5 when rising and falling, and described brake wheel 6 is manually controllable, structure letter Single and convenient dismounting.

Concrete, described undercarriage 5 offers the first fixing hole, described first fixing hole for Described brake wheel 6 with the use of, to be plugged in described first fixing hole and described brake by fixture In wheel 6, make described brake wheel 6 fix with described undercarriage 5 and be connected.In the present embodiment, institute State fixture and be specially latch.

Further, described brake wheel 6 includes rotating wheel 61, connecting plate 62 and controlling bar 63.Institute State rotation wheel 61 and include that a rotary shaft, described rotation wheel 61 can be revolved around the centrage of described rotary shaft Turn.One end of described connecting plate 62 is fixing with described rotary shaft to be connected；Control bar, with described connecting plate The other end of 62 is removably secured connection；Described control bar 63 moves up or down, and makes described Connecting plate 62 rotates and regulates the described height rotating wheel 61.Concrete, the one of described connecting plate 62 End offers the first connecting hole, and the other end of described connecting plate 62 offers the second connecting hole, described company Being further opened with the second fixing hole on fishplate bar 62, described second fixed hole position is in described first connecting hole and institute State between the second connecting hole.Described control bar 63 is removably secured with described connecting plate 62 and is connected, Preferably, one end of described control bar 63 is provided with a fixed part, and described fixed part is located in described In two connecting holes, and it is connected by latch or clip are fixing with described connecting plate 62.Described rotary shaft is worn Being located in described first connecting hole, described rotary shaft is at described first connection hole and described connecting plate 62 Fixing connection so that rotate the height of wheel 61 when described connecting plate 62 rotates described in adjustable.This Shen Connecting plate 62, rotary shaft and control bar 63 please be use to form a linkage, and combine control bar 63 The position of mobile adjustment brake wheel 6, simple in construction and convenient dismounting.

During operation, manually make described control bar 63 move up or down, make described rotation wheel 61 Move down, when the described minimum altitude minimum altitude less than described undercarriage 5 rotating wheel 61, and The difference in height of the described minimum altitude and the minimum altitude of described undercarriage 5 rotating wheel 61 equals to or more than During preset value, in described first fixing hole and described second fixing hole, plug fixture, with fixing institute State brake wheel 6.The brake wheel 6 that the application is arranged, Non-follow control and readily accessible, reduce described rising Fall the abrasion of frame 5, improve described in there is life-span of unmanned plane 100 of take-off and landing device and fixing device.

The application has the beneficial effect that:

1, the application by arrange brake wheel reduce described in there is the nothing of take-off and landing device and fixing device The man-machine abrasion of described undercarriage when rising and falling, and described brake wheel is manually controllable, simple in construction and side Just dismantle.

2, the application use described first bar and described second bar by socket, and described first bar and institute State and be provided with elastic ball between the second bar, it is ensured that the reliability and stability of connection, on the one hand improve Described in, the shock resistance of a support component, on the other hand, adds the cushion effect after member stress, it is to avoid institute State support component by crossing large impact, improve the life-span of described support component, the final main transmission realized The safety and firmness of axle runs.

3, the application is by arranging the first drive link, the second drive link and driver plate, by steering wheel with Second drive link connects, and the second drive link is connected with driver plate, and driver plate and the first drive link connect, So steering wheel acts on the power of the second drive link, passes sequentially through driver plate, the first drive link finally acts on In main rotor so that constituted primary transmission by the first drive link, the second drive link and driver plate and amplify The thrust of described steering wheel, decreases the loss of energy.

4, the application is by setting up cooler bin and return duct so that be in the oil of reduction box in fuselage interior Liquid, is circulated in cooler bin and reduction box by return duct, increases the fluid trip in fuselage interior Dynamic distance, meanwhile, is provided with fin at the peripheral position of reduction box and cooler bin, with to reduction box Dispel the heat further with cooler bin, solve and prior art has the unmanned of take-off and landing device and fixing device The technological deficiency that machine fuselage interior radiating effect is bad.

5, the application sets up the first sleeve and fixed plate by setting, and first set jacket casing is located at tail transmission The outside of axle, fixed plate is set in the outside of the first sleeve so that by the tail transmission shaft of fuselage interior with Fuselage is relatively fixed, and is effectively prevented the unmanned plane with take-off and landing device and fixing device and was flying And the technological deficiency easily beated that cause long due to tail transmission shaft in journey.

It should be noted last that, above detailed description of the invention is only in order to illustrate technology of the present utility model Scheme and unrestricted, although this utility model being described in detail with reference to example, this area general Logical it will be appreciated by the skilled person that the technical solution of the utility model can be modified or be equal to and replace Changing, without deviating from the spirit and scope of technical solutions of the utility model, it all should contain in this practicality new In the middle of the right of type.

Claims (10)

1. there is a unmanned plane for take-off and landing device and fixing device, including fuselage, main rotor, tailspin The wing, steering wheel, electromotor and reduction box, described reduction box is connected with described electromotor, wherein, described Main rotor is rotatably fixed with described fuselage by final drive shaft and is connected；Described tail rotor is fixedly installed At the afterbody of described fuselage, and it is rotatably fixed with described fuselage by tail transmission shaft and is connected；Described Electromotor is connected with described main rotor and described tail rotor, is used for driving described main rotor and described tailspin The wing rotates, and described steering wheel is fixed on the inside of described fuselage；It is characterized in that, described in there is the dress that rises and falls Put the unmanned plane with fixing device also to include:

Take-off and landing device, described take-off and landing device is fixed on the bottom of described fuselage, with to described have rise and fall The unmanned plane of device and fixing device is supported when landing；

Fixing device, described fixing device is set on described tail transmission shaft, and fixes with described fuselage Connect, so that described tail transmission shaft and described fuselage are relatively fixed.

Having the unmanned plane of take-off and landing device and fixing device the most as claimed in claim 1, its feature exists In, described take-off and landing device includes:

Undercarriage, described undercarriage is fixedly installed on the bottom of described fuselage；And open on described undercarriage It is provided with the first fixing hole；

Brake wheel, described brake wheel is removably secured at described first fixing hole with described undercarriage Connect so that described in there is the unmanned plane of take-off and landing device and fixing device in descent by brake Wheel directly contacts with ground.

Having the unmanned plane of take-off and landing device and fixing device the most as claimed in claim 2, its feature exists In, described brake wheel includes:

Rotating wheel, described rotation wheel connection has a rotary shaft, and described rotation wheel can be around described rotary shaft Centrage rotate；

Connecting plate, one end of described connecting plate is fixing with described rotary shaft to be connected；

Controlling bar, described control bar is removably secured with the other end of described connecting plate and is connected；

Wherein, described control bar moves up or down, and regulates institute to drive described connecting plate to rotate State the height rotating wheel relative to described undercarriage.

Having the unmanned plane of take-off and landing device and fixing device the most as claimed in claim 3, it is special Levy and be,

The first connecting hole, the second connecting hole and the second fixing hole is offered on described connecting plate；

Described second fixed hole position between described first connecting hole and described second connecting hole, described rotation Rotating shaft is located in described first connecting hole；

One end of described control bar is provided with a fixed part, and described fixed part is located in described second and connects Kong Zhong.

Having the unmanned plane of take-off and landing device and fixing device the most as claimed in claim 4, it is special Levy and be,

Described control bar connects by latch or clip are fixing in described second connection hole with described connecting plate Connect.

Having the unmanned plane of take-off and landing device and fixing device the most as claimed in claim 2, its feature exists In, described brake wheel is connected by fixture is fixing with described undercarriage；Described fixture is specially to be inserted Pin.

Having the unmanned plane of take-off and landing device and fixing device the most as claimed in claim 1, its feature exists In, described fixing device includes:

First sleeve；And

Fixed plate；Wherein, described first set jacket casing is located on described tail transmission shaft, described fixing sleeve-board It is located on described first sleeve, and the outside of described fixed plate is fixed with described fuselage and is connected, to pass through Described first sleeve and described fixed plate are by firm being fixed in described fuselage of described tail transmission shaft Portion, to prevent described tail transmission shaft from beating.

Having the unmanned plane of take-off and landing device and fixing device the most as claimed in claim 7, its feature exists In, described fixing device also includes:

Limiting plate, wherein,

Described fixed plate offers the first hole, location, and the aperture in described first hole, location is more than described first The excircle diameter of sleeve, makes described first sleeve be located in described first hole, location；

Described limiting plate offers the second hole, location, and the aperture in described second hole, location is more than described first The excircle diameter of sleeve, makes described first sleeve be located in described second hole, location；

Described limiting plate is connected by fixing with described fixed plate.

Having the unmanned plane of take-off and landing device and fixing device the most as claimed in claim 8, its feature exists In,

All offering screwed hole in described limiting plate and described fixed plate, described limiting plate is fixing with described Fixing connection between plate is threaded.

There is the unmanned plane of take-off and landing device and fixing device the most as claimed in claim 9, its feature It is,

The rounded shape of described fixed plate.