CN209617482U - Seesaw type unmanned plane rotor and unmanned plane - Google Patents
Seesaw type unmanned plane rotor and unmanned plane Download PDFInfo
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- CN209617482U CN209617482U CN201920225423.1U CN201920225423U CN209617482U CN 209617482 U CN209617482 U CN 209617482U CN 201920225423 U CN201920225423 U CN 201920225423U CN 209617482 U CN209617482 U CN 209617482U
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- propeller hub
- unmanned plane
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Abstract
The utility model discloses a kind of seesaw type unmanned plane rotor and unmanned plane, unmanned plane rotor includes the paddle clip assembly of propeller hub component and two rotational symmetry；The propeller hub side plate of rotor clip assembly and the propeller hub component of two sides is bolted by four, and mechanism is simple, easy to maintain, easy disassembly transport and fault diagnosis.The propeller hub component and paddle clip assembly is all made of symmetrical layout type, structure is simple, it is practical and reliable, reduce cost, control propeller hub center of gravity and rotor overlapping of axles, the connection type of rotor clip assembly assembles paddle clip assembly using temperature differential method technique, reduces the level of vibration of the teetering rotor system.Using modularized design, the complexity of structure is reduced, makes the simple operations such as rotor system design, debugging and maintenance, propeller hub component can rotate and realize the flapping action of propeller hub component with rotor shaft.
Description
Technical field
The utility model belongs to air vehicle technique field, and in particular to a kind of seesaw type unmanned plane rotor and unmanned plane.
Background technique
In rotor wing unmanned aerial vehicle field, rotor system is the core component that lift and steering force are generated for unmanned plane during flying.It passes
The helicopter rotor system of system is made of the two panels or multi-disc blade being connected on propeller hub.Blade is usually leaned on from engine
Torque keeps rotary motion.Rotor system generates lift, pulling force necessary to helicopter flight, while rotor system is also for nobody
The main vibration source of machine.The basic characteristics that vertical flight is rotor wing unmanned aerial vehicle can efficiently be completed.The flying quality of unmanned plane, flight product
The solution or improvement of the problems such as matter, vibration, noise level, service life and reliability, all relies on the air force to rotor system
The grasp of characteristic and kinetic characteristics is learned, currently, being largely the rotor with reference to manned machine for medium-sized unmanned plane rotor system
The teetering rotor of system, although performance indicator is reliable.But manned machine rotor system is complicated, at high cost, maintenance is inconvenient,
It is not particularly suited for unmanned plane during flying and handling characteristic.
Existing teetering rotor has the problem of following three aspect,
First, rotor only has two panels blade, shares a horizontal hinge, without vertical hinge, there is pitch hinge, general pitch hinge uses
Tension-torsion bar bears centrifugal force.The effect design of its tension-torsion bar needs certain space, is not appropriate for the characteristic of medium-sized unmanned plane.
Second, teetering rotor manipulates effect and angular speed damping is smaller, in order to increase angular speed damping, this shape
The rotor of formula will be with mechanical tranquilizer --- and stabiliser bar will cause that structure is complicated, increase weight.
Third, paddle folder installation blade interface structure is that bolt is fixedly connected, unadjustable, installation and manufacture to blade
It is more demanding.Rotor exciting force caused by shimmy face can not be improved, cause rotor system vibration larger.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of seesaw type unmanned plane rotor, energy
Enough improve self-stability and the safety of unmanned helicopter.
The utility model is achieved through the following technical solutions:
A kind of seesaw type unmanned plane rotor, the paddle clip assembly including propeller hub component and two rotational symmetry；
The propeller hub component is symmetric design comprising passes through the paddle of the alignment pin and rotor axis connection that are laterally extended
Hub locating piece, two propeller hub sides that the seesaw positioning pin longitudinally extended by two is connect with the propeller hub locating piece respectively
Plate, the corresponding propeller hub support arm being bolted to connection with the propeller hub side plate in inner end are axial on the propeller hub support arm
Positioningly it is provided with paddle folder distance collar；
Wherein, the paddle clip assembly includes paddle folder and bending moment arm, and the paddle folder includes can with the propeller hub support arm
The connector drum being rotatably cooperatively connected, and paddle board that is integrally formed with the connector drum or being fixedly connected press from both sides, described
Bending moment arm be fixedly connected with the connector drum, the connector drum and paddle folder distance collar be bolted to connection reality
Its existing axial restraint.
In the above-mentioned technical solutions, it is fixed in two propeller hub side sheet rooms and waves limited block, in the rotor
Correspondence is arranged with polyurethane bushing on axis.
In the above-mentioned technical solutions, sleeve and axle sleeve, the both ends of alignment pin are sequentially arranged in the alignment pin
It is provided with bearing, anti-loose fastener and lubricating oil cap.
In the above-mentioned technical solutions, pass through cross bolts on propeller hub support arm successively and needle bearing, paddle press from both sides distance collar, corner connection
Contact bearing, paddle press from both sides nut connection.
In the above-mentioned technical solutions, paddle folder connector drum open end and the propeller hub arm room are provided with sealing axis
It holds.
In the above-mentioned technical solutions, paddle board folder includes that inside bolt is fixedly connected with outside bolt to adjust blade
In the angle in direction that deploys.
In the above-mentioned technical solutions, propeller hub support arm has 1.75 ° of pre- cone angle two panels blade is upwarped 1.75 °.
In the above-mentioned technical solutions, fixed interlocking bar limited block is bolted respectively in rotor shaft upper and lower ends.
In the above-mentioned technical solutions, propeller hub locating piece and rotor between centers are elastic conjunction.
A kind of unmanned plane with the unmanned plane rotor.
It the advantages of the utility model and has the beneficial effect that
The propeller hub side plate of rotor clip assembly and the propeller hub component of two sides is bolted by four, and mechanism is simple, maintenance
It is convenient, easy disassembly transport and fault diagnosis.The propeller hub component and paddle clip assembly is all made of symmetrical layout type, structure
Simply, practical and reliable, cost is reduced, propeller hub center of gravity and rotor overlapping of axles are controlled, the connection type of rotor clip assembly uses
Temperature differential method technique assembles paddle clip assembly, reduces the level of vibration of the teetering rotor system.Using modularized design, reduce
The complexity of structure, makes the simple operations such as rotor system design, debugging and maintenance, propeller hub component can be rotated with rotor shaft and
Realize the flapping action of propeller hub component.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model seesaw type unmanned plane rotor.
Fig. 2 is the schematic top plan view of the utility model seesaw type unmanned plane rotor.
Fig. 3 show the A-A sectional view of the utility model seesaw type unmanned plane rotor.
Fig. 4 is the B-B sectional view of the utility model seesaw type unmanned plane rotor.
Fig. 5 is the side view of the utility model seesaw type unmanned plane rotor.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, combined with specific embodiments below into one
Step illustrates the technical solution of the utility model.
Embodiment one
A kind of seesaw type unmanned plane rotor of the utility model, the paddle including propeller hub component 100 and two rotational symmetry
Clip assembly 200；
The propeller hub component is symmetric design comprising passes through the paddle of the alignment pin and rotor axis connection that are laterally extended
Hub locating piece, the semi-shaft type seesaw positioning pin 2 longitudinally extended by two connect respectively with the propeller hub locating piece two
A propeller hub side plate 3, the corresponding propeller hub support arm being bolted to connection with the propeller hub side plate 3 in inner end, in the propeller hub
Paddle folder distance collar is provided with to axially position on support arm；Wherein, the propeller hub support arm rear portion is connecting plate, connects board ends pair
It should be fixedly connected with propeller hub side plate bolt, front is column, to assemble subsequent paddle folder.Wherein, the transverse direction and vertical
To being a kind of description as the perpendicular setting of the two, it is not intended as specifically limiting.That is, alignment pin and positioning pin are vertically to set
It sets.
Wherein, the paddle clip assembly includes paddle folder and bending moment arm, and the paddle folder includes can with the propeller hub support arm
The connector drum being rotatably cooperatively connected, and paddle board that is integrally formed with the connector drum or being fixedly connected press from both sides, described
Bending moment arm be fixedly connected with the connector drum, the connector drum and paddle folder distance collar be bolted to connection reality
Its existing axial restraint, paddle folder distance collar can be rotatably set on propeller hub support arm by bearing, can by adjusting paddle folder distance collar
Realize bending moment adjustment.
Specifically, propeller hub support arm and the propeller hub side plate of two sides are bolted, and mechanism is simple, easy to maintain, conveniently tear open
Ship defeated and fault diagnosis.The propeller hub component and paddle clip assembly is all made of symmetrical layout type, and structure is simple, it is practical and
Reliably, cost is reduced, propeller hub center of gravity and rotor overlapping of axles, the connection type of rotor clip assembly, using temperature differential method technique are controlled
Paddle clip assembly is assembled, the level of vibration of the teetering rotor system is reduced.Using modularized design, answering for structure is reduced
Miscellaneous degree, makes the simple operations such as rotor system design, debugging and maintenance, and propeller hub component can rotate and realize propeller hub group with rotor shaft
The flapping action of part.
Specifically, paddle folder 13 is connected with each other by bolt and distance-variable rocker arm 16, rocker arm supporting element 17, then pitch-change-link 18
It is connected by bolt with oscillating bearing, converts the steering force that pitch-change-link 18 transmits on the axial torsion of paddle folder, driving paddle folder
13 circular motion realize displacement movement to realize that paddle presss from both sides the variation of 13 propeller pitch angles.
Wherein, it is fixed in two propeller hub side sheet rooms and waves limited block 6, correspondence is arranged in the rotor shaft
There is polyurethane bushing.It waves stop block 6 for two pairs to be joined with bolts between the propeller hub side plate 3 of two sides, under propeller hub locating piece 1
Square 10 top of rotor shaft, is equipped with polyurethane bushing 12, it is therefore an objective to guarantee to hit rotor shaft 10 when the rotor shaft amount of waving is excessive.
Fixed interlocking bar limited block 5 is bolted respectively in 10 upper and lower ends of rotor shaft.5 function of interlocking lever limited block
It is to play the role of guiding and limit to long draw, material is novel high polymer material.The teetering rotor propeller hub
The interlocking lever limited block 5 of component, using macromolecule guide material, material is with higher wear-resisting and self-lubricating function.
Embodiment two
On the basis of the above embodiments, it is sequentially arranged with sleeve and axle sleeve on the seesaw positioning pin 2, both ends are set
It is equipped with bearing, anti-loose fastener and lubricating oil cap.There is axial displacement on seesaw positioning pin 2, from inner on seesaw positioning pin
To being successively needle bearing, thrust bearing, gasket and nut outside.Outmost nut be exactly adjust propeller hub component center away from.
It needs to beat safety plug at its end.
The effect of the rotatable setting of seesaw positioning pin is to realize the flapping action of teetering rotor system, in two sides paddle
Oiling and sealing are carried out equipped with lubricating oil cap 7 on hub side plate 3.It is used on the seesaw positioning pin 2 at 1 both ends of propeller hub locating piece
Needle bearing and thrust bearing, for transmitting the axial force on seesaw positioning pin 2.
Wherein, the cross bolts 11 of teetering rotor paddle clip assembly and paddle folder nut 15 be primarily subjected to rotor system from
Mental and physical efforts are critical components, in this regard, the screw thread used for MJ thread standard, improves the service life and safety coefficient of paddle folder.Laterally
Bolt and paddle folder nut 15 are all made of novel high-strength aerometal material development and form.The intensity of its material and antifatigue coefficient
Meet army's mark MAT'L specification.
Pass through cross bolts on propeller hub support arm 4 successively and needle bearing, paddle press from both sides distance collar, angular contact bearing, paddle presss from both sides nut
Connection.Paddle folder distance collar is pressed from both sides into ring on distance collar with respect to the rotatable fixation of propeller hub support arm, while in paddle using the bearing of two sides
It has been uniformly arranged multiple threaded holes week, such as 8 threaded holes, the corresponding fixation that itself and paddle folder 13 are realized by 8 bolts, preferably
Ground is also arranged with axle sleeve on the bolt.
Embodiment three
Further, the connector drum open end of paddle folder 13 and the propeller hub arm room are provided with sealing bearing.Rotation
The sealing of wing paddle clip assembly is selected single-side sealing bearing to realize, increases oiling in the middle part of the connector drum of paddle folder 13
Hole ensure that the lubrication and leakproofness of paddle clip assembly, the lubrication of paddle clip assembly are come by the connector drum inner space of paddle folder 13
It realizes.
Moreover, the paddle board folder is fixedly connected including inside bolt and belongs to adjustable connection with outside bolt, blade is connect
Mouth design is easily installed and controls the shimmy power of blade.The paddle folder 13 connects with blade installation place using two bolts
It connects.By the pretightning force of bolt axial direction, so that paddle presss from both sides 13 clamping plates and flushes with blade mounting surface, guarantee the angle of attack and paddle folder 13 of blade
Unanimously.And adjustable connection can reduce rotor exciting force caused by shimmy face, reduce teetering rotor level of vibration.
Meanwhile propeller hub support arm has 1.75 ° of pre- cone angle two panels blade is upwarped 1.75 °.
The rotor system is seesaw type, only two panels blade, this two panels blade is connected in structure and is total to
With a horizontal hinge, do not cut with scissors vertically.In order to eliminate root bending moment caused by constant aerodynamic loading i.e. pulling force, the axial direction
Hinge cross bolts are an important stressed members, and material uses new alloy material, and axial hinge is designed to traditional form, centrifugal force
It is born by thrust roller bearing, moment of flexure is born by two angular contact bearings.Realize centrifugal force and pulling force in the moment of flexure of root
Balance unloads blade in face of waving.It can cause an order harmonics Ge Shi power in the surfaces of revolution, so by 2 cloth of seesaw positioning pin
The center of gravity equal-height position in blade is set, coriolis force is eliminated.
The feathering and total square of the teetering rotor head are realized by axial hinge.The seesaw
The power transmission of rotor system centrifugal force: blade is fixed on the clamping plate of paddle folder 13, and paddle folder 13 presss from both sides the transmitting centrifugation of distance collar 14 by paddle
Power gives two angular contact bearings, then passes to cross bolts, paddle folder nut 15 is ultimately transferred to, so centrifugal force finally passes to paddle
It presss from both sides on nut 15, is born by screw thread, in order to increase safety, need to beat safety plug at paddle folder nut.
The transmitting of the teetering rotor system moment of flexure: moment of flexure directly passes to two angular contact bearings and rolling by paddle folder 13
Needle bearing, then pass to propeller hub support arm 4.
In conclusion teetering rotor system functionally relies on seesaw positioning pin 2 and bearing to realize rotor system
Flapping action.The displacement movement of rotor system is realized by paddle clip assembly and bearing.
The torque that the rotor shaft 10 passes over engine passes to rotor system.Rotor system presses certain revolving speed
Clockwise or counterclockwise, meanwhile, steering force is that the rotor control system is transmitted to pitch-change-link 18,18 band of pitch-change-link
Dynamic paddle folder movement.13 drive blade of paddle folder is moved along axial hinge, realizes blade angle of attack variation, so that blade generates mechanical periodicity
Aerodynamic lift.
Shown in sum up, the seesaw type rotor system of the utility model is had the advantage that
1. improving the accuracy of manufacture and rotor aerodynamic characteristic, platform flight quality is improved.
2. optimizing assembly technology, the mechanical performance and control stability of rotor system are improved, system cost is low, is suitable for
Type and light-duty unmanned helicopter.
3. teetering rotor system teetering rotor described in is convenient for safeguarding and installation, improvement rotor seesaw type revolve
Wing flutter is horizontal, and resistance area is small.
The spatially relative terms such as "upper", "lower", "left", "right" have been used in embodiment for ease of explanation, have been used for
Relationship of the elements or features relative to another elements or features shown in explanatory diagram.It should be understood that in addition to figure
Shown in except orientation, spatial terminology is intended to include the different direction of device in use or operation.For example, if in figure
Device be squeezed, the element for being stated as being located at other elements or feature "lower" will be located into other elements or feature "upper".
Therefore, exemplary term "lower" may include both upper and lower orientation.Device, which can be positioned in other ways, (to be rotated by 90 ° or position
In other orientation), it can be interpreted accordingly used herein of the opposite explanation in space.
Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
Illustrative description has been done to the utility model above, it should explanation, in the core for not departing from the utility model
In the case where the heart, it is any it is simple deformation, modification or other skilled in the art can not spend creative work etc.
The protection scope of the utility model is each fallen with replacement.
Claims (10)
1. a kind of seesaw type unmanned plane rotor, it is characterised in that: the paddle clip assembly including propeller hub component and two rotational symmetry；
The propeller hub component is symmetric design comprising fixed by the propeller hub of the alignment pin and rotor axis connection that are laterally extended
Position block, two propeller hub side plates that the seesaw positioning pin longitudinally extended by two is connect with the propeller hub locating piece respectively,
The corresponding propeller hub support arm being bolted to connection with the propeller hub side plate in inner end, the axially position on the propeller hub support arm
Ground is provided with paddle folder distance collar；
Wherein, the paddle clip assembly includes paddle folder and bending moment arm, and the paddle folder includes rotatable with the propeller hub support arm
The connector drum that ground is cooperatively connected, and paddle board that is integrally formed with the connector drum or being fixedly connected press from both sides, the change
Moment arm is fixedly connected with the connector drum, and the connector drum and paddle folder distance collar are bolted to connection and realize it
Axial restraint.
2. a kind of seesaw type unmanned plane rotor according to claim 1, it is characterised in that: in two propeller hub sides
It is fixed between plate and waves limited block, correspondence is arranged with polyurethane bushing in the rotor shaft.
3. a kind of seesaw type unmanned plane rotor according to claim 1, it is characterised in that: in the alignment pin
It is sequentially arranged with sleeve and axle sleeve, the both ends of alignment pin are provided with bearing, anti-loose fastener and lubricating oil cap.
4. a kind of seesaw type unmanned plane rotor according to claim 1, it is characterised in that: pass through transverse direction on propeller hub support arm
Bolt is successively and needle bearing, paddle press from both sides distance collar, angular contact bearing, and paddle presss from both sides nut connection.
5. a kind of seesaw type unmanned plane rotor according to claim 1, it is characterised in that: in paddle folder connector drum opening
End is provided with sealing bearing with the propeller hub arm room.
6. a kind of seesaw type unmanned plane rotor according to claim 1, it is characterised in that: the paddle board folder includes interior
Side bolt is fixedly connected with outside bolt to adjust blade in the angle in direction that deploys.
7. a kind of seesaw type unmanned plane rotor according to claim 1, it is characterised in that: propeller hub support arm has 1.75 °
Pre- cone angle two panels blade is upwarped 1.75 °.
8. a kind of seesaw type unmanned plane rotor according to claim 1, it is characterised in that: in rotor shaft upper and lower ends point
Fixed interlocking bar limited block is not bolted.
9. a kind of seesaw type unmanned plane rotor according to claim 1, it is characterised in that: propeller hub locating piece and rotor shaft
Between be elastic conjunction.
10. a kind of unmanned plane with the described in any item unmanned plane rotors of such as claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920225423.1U CN209617482U (en) | 2019-02-22 | 2019-02-22 | Seesaw type unmanned plane rotor and unmanned plane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920225423.1U CN209617482U (en) | 2019-02-22 | 2019-02-22 | Seesaw type unmanned plane rotor and unmanned plane |
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| Publication Number | Publication Date |
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| CN209617482U true CN209617482U (en) | 2019-11-12 |
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| CN201920225423.1U Active CN209617482U (en) | 2019-02-22 | 2019-02-22 | Seesaw type unmanned plane rotor and unmanned plane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109677601A (en) * | 2019-02-22 | 2019-04-26 | 一飞智控(天津)科技有限公司 | Seesaw type unmanned plane rotor and unmanned plane |
-
2019
- 2019-02-22 CN CN201920225423.1U patent/CN209617482U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109677601A (en) * | 2019-02-22 | 2019-04-26 | 一飞智控(天津)科技有限公司 | Seesaw type unmanned plane rotor and unmanned plane |
| CN109677601B (en) * | 2019-02-22 | 2024-05-28 | 一飞智控(天津)科技有限公司 | Teeterboard type unmanned aerial vehicle rotor wing and unmanned aerial vehicle |
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