CN109502010A - Helicopter tail rotor displacement displacement disc assembly and helicopter - Google Patents
Helicopter tail rotor displacement displacement disc assembly and helicopter Download PDFInfo
- Publication number
- CN109502010A CN109502010A CN201811639384.6A CN201811639384A CN109502010A CN 109502010 A CN109502010 A CN 109502010A CN 201811639384 A CN201811639384 A CN 201811639384A CN 109502010 A CN109502010 A CN 109502010A
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- CN
- China
- Prior art keywords
- rotor
- tail
- displacement
- disk
- helicopter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/32—Blade pitch-changing mechanisms mechanical
Abstract
The invention discloses a kind of helicopter tail rotor displacement displacement disc assembly and helicopters, including by can slide axially along tail-rotor rotor shaft and with the transmission cooperation of tail-rotor rotor shaft in a manner of be coated at the displacement disk of tail-rotor rotor shaft, be coated at displacement sleeve of the displacement disk for driving displacement disk to slide and for driving displacement sleeve along tail-rotor rotor shaft driving assembly in axial sliding, the drive rod for connecting with paddle components is provided on the displacement disk, the displacement disk is rotatablely connected by angular contact ball bearing and displacement sleeve.The present invention can not only realize tail-rotor displacement by displacement disk, and can be realized by displacement disk and be transmitted to the torque of tail-rotor rotor shaft, and realize the high-speed rotation of displacement disk, extend bearing service life.
Description
Technical field
The present invention relates to helicopter field, in particular to a kind of helicopter tail rotor displacement displacement disc assembly.
Background technique
Helicopter tail rotor is for balancing reaction torque and carrying out the component of directional control to helicopter.The tail-rotor phase being rotating
When stabilization can be played to helicopter course in a fixed fin.Although the function of tail-rotor is different from rotor, they
It is all the state that generates air force, work in asymmetric flow when preceding winged by rotation, therefore tail-rotor structure and rotation
Wing structure has many similarities.Currently, the structure type of tail-rotor mainly has seesaw type, Universal connector hair style, radial type, shaftless
Hold formula, " ducted tail rotor " formula.
Conventional tail-rotor is usually made of tail-rotor leaf, tail-rotor hub and pitch-changing mechanism, and wherein tail-rotor leaf is connected on tail-rotor hub, is
Generate aerodynamic rotation aerofoil；Tail-rotor hub is the intermediate member for connecting tail-rotor leaf and tail transmission system, tail steerable system；Tail
Paddle pitch-changing mechanism is mainly made of slide cartridge, trident driving lever, pitch-change-link etc., for changing the propeller pitch angle of tail-rotor, to change tail-rotor
The size and Orientation of pulling force.Helicopter tail rotor displacement is mostly to use the drive mechanism of more parts by the manipulation of steering engine in the prior art
Power is transmitted on pitch-change-link, finally passes to tail-rotor again.Direct result caused by such design is exactly its construction weight
Increase, and excessive drive joint will lead to the reliability reduction of transmission；Rotor shaft is drawn by displacement in the prior art simultaneously
Bar transmits torque, reduces the service life of pull rod and bearing.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of helicopter tail rotor displacement displacement disc assembly and helicopter,
Tail-rotor displacement can not only be realized by displacement disk, and can be realized by displacement disk and the torque of tail-rotor rotor shaft is transmitted, and
It realizes the high-speed rotation of displacement disk, extends bearing service life.
Helicopter tail rotor displacement displacement disc assembly of the invention, including can slide axially along tail-rotor rotor shaft and and tail
The mode of paddle rotor shaft transmission cooperation is coated at the displacement disk of tail-rotor rotor shaft, is coated at displacement disk for driving displacement disk to slide
Displacement sleeve and for driving displacement sleeve to be arranged along tail-rotor rotor shaft driving assembly in axial sliding, the displacement disk
There is the drive rod for connecting with paddle components, is cooperated by displacement disk and the transmission of tail-rotor rotor shaft, make displacement disk with tail-rotor
Rotor shaft rotation, and tail-rotor rotor shaft drives the rotation of tail-rotor paddle components, so that displacement disk is realized to tail-rotor rotor shaft
Torque transmitting, optimizes Path of Force Transfer, extends the service life of bearing and other components；It is driven simultaneously by driving assembly
The sliding of displacement sleeve, and then the sliding of displacement disk is driven, the sliding of displacement disk drives the rotation of tail-rotor paddle components, to realize that tail-rotor becomes
Away from；The displacement disk is rotatablely connected by angular contact ball bearing and displacement sleeve, and angular contact ball bearing is two, axially spaced
Setting, to realize the high-speed rotation of displacement disk, and can extend bearing service life.
Further, the displacement disk is cooperated by slip ring and the transmission of tail-rotor rotor shaft, and the axial direction to realize displacement disk is sliding
It is dynamic；And the self-lubricating annular thin wall part for transmitting torque, self-lubricating ring are provided between the displacement disk and tail-rotor rotor shaft
Shape thin-wall part uses self-lubricating gasket, to realize that torque transmits, optimizes Path of Force Transfer, pull rod is avoided directly to bear torque, prolong
The service life of pull rod is grown.
Further, the driving component include steering engine, on the outside of displacement sleeve with the pull rod of steering engine transmission connection and
The distance-variable rocker arm being set between pull rod and displacement sleeve, the steering engine are fixed on a tail-rotor support, the tail-rotor rotor shaft
It is pivotally supported in tail-rotor support, the output end of the steering engine is located in tail-rotor support, and described pull rod one end is protruded into
Hinged with the steering engine rocker arm that is set to steering engine output end in tail-rotor support, the pull rod other end stretches out tail-rotor support outside and distance-variable rocker arm
One end is hinged, and the distance-variable rocker arm other end and displacement sleeve are hinged, drives pull rod to move up and down by steering engine, and then displacement is driven to shake
Arm is moved with pull rod, and distance-variable rocker arm drives displacement sleeve to slide axially, so that displacement sleeve be made to drive displacement disk along axial sliding
Dynamic, displacement disk drives the rotation of tail-rotor paddle components, realizes tail-rotor displacement.
Further, the connecting rod with distance-variable rocker arm cooperation is provided on the tail-rotor support, the connecting rod is located at pull rod and becomes
Away between sleeve, the connecting rod one end and distance-variable rocker arm are hinged, and the other end and the linking arm that tail-rotor support is equipped with are hinged, improve and pass
Efficiency of movement guarantees transmission stability.
Further, the displacement disk is provided with the first sealing cover close to one end of paddle components, and displacement sleeve is close to blade
One end of component is provided with the second sealing cover, and the other end of displacement disk and displacement sleeve is provided with for displacement disk and displacement set
Cylinder forms the third sealing cover sealed jointly, and the first sealing cover is bearing clamping cap, and the second sealing cover is dustproof cover, third sealing
Lid is locking nut, and the sealed end end face of locking nut, which is equipped with, to be sealed displacement sleeve and displacement disk is not interfered to revolve with tail-rotor
The annular groove that wing axis 1 rotates.
Further, the tail-rotor paddle components include rotating with the tail-rotor axle journal of tail-rotor rotor axis connection, with tail-rotor axle journal
The tail-rotor paddle of cooperation presss from both sides and is fixed on the tail-rotor blade on tail-rotor paddle folder, and the tail-rotor paddle is pressed from both sides close to one end of tail-rotor rotor shaft
Outer wall is equipped with the first radially connected portion for connecting with drive rod, the windward side in the first radially connected portion and tail-rotor blade
Positioned at ipsilateral, the displacement disk is equipped with close to the outer wall that tail-rotor paddle presss from both sides one end for connecting with drive rod second radially connected
Portion, the drive rod both ends are hinged with the first radially connected portion and the second radially connected portion respectively, and drive rod both ends are respectively with
One radially connected portion and the second radially connected portion hingedly, make displacement disk slide axially and be able to drive tail using oscillating bearing
The folder rotation of paddle paddle, realizes tail-rotor displacement.Tail-rotor paddle presss from both sides one end and is coated at tail-rotor axle journal, is rotated by sliding bearing and tail-rotor axle journal
Cooperation, sliding bearing are two, are arranged along tail-rotor axle journal axially spaced-apart, realize stable displacement movement；Tail-rotor paddle folder and tail-rotor
Perforative tail-rotor tension-torsion item is provided in axle journal, tail-rotor tension-torsion both ends pass through pin respectively and are fixed on tail-rotor paddle folder and tail-rotor axis
Neck is able to bear centrifugal force, (avoids axial receiving centrifugation to mitigate the stress of sliding bearing by the way that tail-rotor tension-torsion item is arranged
Power), to greatly improve the service life of bearing；It is additionally provided with O-ring seal between tail-rotor paddle folder and tail-rotor axle journal, to mention
High waterproof and dustproof, anti-sandstone effect.
The invention also discloses a kind of using the helicopter tail rotor displacement helicopter of displacement disc assembly, described to go straight up to tail
Paddle displacement is installed on the helicopter with displacement disc assembly, can not only realize tail-rotor displacement by displacement disk, and can pass through change
It is realized away from disk and the torque of tail-rotor rotor shaft is transmitted, and realize the high-speed rotation of displacement disk, extend bearing service life.
Beneficial effects of the present invention: helicopter tail rotor displacement displacement disc assembly and helicopter of the invention, it can not only
Tail-rotor displacement is realized by displacement disk, and can be realized by displacement disk and the torque of tail-rotor rotor shaft is transmitted, and realize displacement
The high-speed rotation of disk extends bearing service life.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the cross-sectional view for removing tail-rotor blade of Fig. 1；
Fig. 3 is the left view partial sectional view of Fig. 2；
Fig. 4 is the overhead, partial cut-away view of Fig. 2；
Fig. 5 is the schematic diagram for going tail-rotor paddle components of Fig. 4；
Fig. 6 is stereoscopic schematic diagram of the invention.
Specific embodiment
It is as shown in Figures 1 to 6: the helicopter tail rotor displacement displacement disc assembly of the present embodiment, including can be revolved along tail-rotor
Wing axis 1 slides axially and is coated at the displacement disk 3 of tail-rotor rotor shaft 1 with the mode of the transmission cooperation of tail-rotor rotor shaft 1, is coated at change
It is used to drive the displacement sleeve 4 of the sliding of displacement disk 3 away from disk 3 and for driving displacement sleeve 4 to slide axially along tail-rotor rotor shaft 1
Driving assembly, the drive rod 5 for connecting with paddle components is provided on the displacement disk 3, passes through displacement disk 3 and tail-rotor revolves
The transmission cooperation of wing axis 1, rotates displacement disk 3 with tail-rotor rotor shaft 1, and tail-rotor rotor shaft 1 drives the rotation of tail-rotor paddle components,
The torque of tail-rotor rotor shaft 1 is transmitted so that displacement disk 3 is realized, Path of Force Transfer is optimized, extends bearing and other zero
The service life of component；It drives displacement sleeve 4 to slide by driving assembly simultaneously, and then displacement disk 3 is driven to slide, displacement disk 3
Sliding drives the rotation of tail-rotor paddle components, to realize tail-rotor displacement；The displacement disk 3 passes through angular contact ball bearing 15 and displacement
Sleeve 4 is rotatablely connected, and angular contact ball bearing 15 is two in the present embodiment, axially spaced setting, to realize the height of displacement disk 3
Speed rotation, and bearing service life can be extended.
In the present embodiment, the displacement disk 3 is cooperated by slip ring 13 and the transmission of tail-rotor rotor shaft 1, to realize displacement disk 3
Slide axially, the slip ring 13 of the present embodiment is piston ring, and piston ring is two, axially spaced setting, to improve bearing
Service life；And the self-lubricating annular thin wall part for transmitting torque is provided between the displacement disk 3 and tail-rotor rotor shaft 1
14, the self-lubricating annular thin wall part 14 of the present embodiment uses self-lubricating gasket, to realize that torque transmits, optimizes Path of Force Transfer,
It avoids pull rod from directly bearing torque, extends the service life of pull rod.Between the tail-rotor rotor shaft 1 and displacement disk 3 of the present embodiment
It is additionally provided with dust seal and O-ring seal, to improve waterproof and dustproof, anti-sandstone effect.
In the present embodiment, the driving component includes steering engine 6, the drawing positioned at displacement sleeve 4 outside and the transmission connection of steering engine 6
Bar 7 and the distance-variable rocker arm 8 being set between pull rod 7 and displacement sleeve 4, the steering engine 6 are fixed on a tail-rotor support 9, institute
It states tail-rotor rotor shaft 1 and is pivotally supported in tail-rotor support 9, the output end of the steering engine 6 is located in tail-rotor support 9,
The steering engine rocker arm 10 that 6 output end of steering engine was protruded into tail-rotor support 9 and be set in described 7 one end of pull rod is hinged, and 7 other end of pull rod is stretched
Tail-rotor support 9 is outer hinged with 8 one end of distance-variable rocker arm out, and 8 other end of distance-variable rocker arm and displacement sleeve 4 are hinged；It is driven by steering engine 6
Pull rod 7 moves up and down, and then distance-variable rocker arm 8 is driven to move with pull rod 7, and distance-variable rocker arm 8 drives displacement sleeve 4 to slide axially,
To make displacement sleeve 4 that displacement disk 3 be driven to slide axially, displacement disk 3 drives the rotation of tail-rotor paddle components, realizes that tail-rotor becomes
Away from.It is all made of between the pull rod 7 and steering engine rocker arm 10 and distance-variable rocker arm 8 of the present embodiment, between distance-variable rocker arm 8 and displacement sleeve 4
Oscillating bearing carries out hinged, has load-carrying ability big, shock resistance, anticorrosive, wear-resistant, Self-aligning, the features such as having lubricated；Displacement
One end that rocker arm 8 is used to connect with displacement sleeve 4 is semicircular structure, and convenient for assembly, it is firm to connect；Tail-rotor rotor shaft 1 passes through
Angular contact ball bearing and tail-rotor support 9 are rotatablely connected, and the bearing for being used to support tail-rotor rotor shaft 1 is equipped on tail-rotor support 9
Seat and be provided with dust seal between bearing block and tail-rotor rotor shaft 1 to improve support protection effect for dust-proof dust excluding plate,
To improve dust-proof, anti-sandstone effect；9 side of tail-rotor support offers the opening for pitch test, in order to external special
Detecting tool is directly tested；And by setting tail-rotor support 9, convenient for being assembled with tail boom bar, branch is promoted
Strength and stiffness are supportted, antifatigue effect is good.
In the present embodiment, the connecting rod 11 cooperated with distance-variable rocker arm 8,11, the connecting rod are provided on the tail-rotor support 9
Between pull rod 7 and displacement sleeve 4,11 one end of connecting rod and distance-variable rocker arm 8 are hinged, what the other end was equipped with tail-rotor support 9
Linking arm 12 is hinged, improves transmission efficiency, guarantees transmission stability；The connecting rod 11 and distance-variable rocker arm 8 and linking arm of the present embodiment
It is all made of oscillating bearing between 12 and carries out hinged, shock resistance big with load-carrying ability, anticorrosive, wear-resistant, Self-aligning, lubrication
The features such as good.
In the present embodiment, the displacement disk 3 is provided with the first sealing cover 16, displacement sleeve 4 close to one end of paddle components
One end close to paddle components is provided with the second sealing cover 17, and the other end of displacement disk 3 and displacement sleeve 4 is provided with for change
The third sealing cover 18 sealed jointly is formed away from disk 3 and displacement sleeve 4, first sealing cover 16 of the present embodiment is bearing compression
Lid, the second sealing cover 17 are dustproof cover, and third sealing cover 18 is locking nut, and the sealed end end face of locking nut is equipped with to displacement
The annular groove that sleeve 4 is sealed and displacement disk 3 is not interfered to rotate with tail-rotor rotor shaft 1.
In the present embodiment, the tail-rotor paddle components include the tail-rotor axle journal 19 connecting with tail-rotor rotor shaft 1 and tail-rotor axis
The tail-rotor paddle folder 20 that neck 19 is rotatably assorted and the tail-rotor blade 21 being fixed on tail-rotor paddle folder 20, the tail-rotor paddle folder 20 are close
One end outer wall of tail-rotor rotor shaft 1 is equipped with the first radially connected portion 22 for connecting with drive rod 5, and described first is radially connected
The windward side of portion 22 and tail-rotor blade 21 is located at ipsilateral, and the displacement disk 3 is equipped with close to the outer wall that tail-rotor paddle presss from both sides 20 one end and is used for
The radially connected portion 23 of second connect with drive rod 5,5 both ends of drive rod respectively with the first radially connected portion 22 and the second diameter
It is hinged to interconnecting piece 23,5 both ends of drive rod of the present embodiment respectively with the first radially connected portion 22 and the second radially connected portion 23
Hingedly, make displacement disk 3 slide axially and be able to drive 20 rotation of tail-rotor paddle folder, realize tail-rotor displacement using oscillating bearing.
The tail-rotor paddle of the present embodiment presss from both sides 20 one end and is coated at tail-rotor axle journal 19, is rotatably assorted by sliding bearing and tail-rotor axle journal 19, sliding
Dynamic bearing is two, is arranged along 19 axially spaced-apart of tail-rotor axle journal, realizes stable displacement movement；Tail-rotor paddle folder 20 and tail-rotor axle journal
Perforative tail-rotor tension-torsion item is provided in 19, tail-rotor tension-torsion both ends pass through pin respectively and are fixed on tail-rotor paddle folder 20 and tail-rotor axis
Neck 19 is able to bear centrifugal force, (avoids axial receiving centrifugation to mitigate the stress of sliding bearing by the way that tail-rotor tension-torsion item is arranged
Power), to greatly improve the service life of bearing；It is additionally provided with O-ring seal between tail-rotor paddle folder 20 and tail-rotor axle journal 19,
To improve waterproof and dustproof, anti-sandstone effect.
It further include the tail-rotor motor 2 for driving tail-rotor rotor shaft 1 to rotate in the present embodiment, the tail-rotor motor 2 is fixed
In on tail-rotor support 9, the axis of the steering engine 6 and the axis perpendicular of tail-rotor motor 2 make in tail-rotor motor 2 and driving assembly
Pull rod 7, the components such as distance-variable rocker arm 8 be arranged separately at tail boom bar two sides, so that two sides weight is kept almost the same, thus guarantee by
Power is more uniform, promotes service performance.
In the present embodiment, the tail-rotor axle journal 19 is fixedly connected by flapping hinge 24 with tail-rotor rotor shaft 1, due to the first diameter
It is located to the windward side of interconnecting piece 22 and tail-rotor blade 21 ipsilateral, can effectively inhibits to wave；The axis of the flapping hinge 24 is inclined
Axis from the first radially connected portion 22 makes to be formed between the axis of flapping hinge 24 and the axis in the first radially connected portion 22 small
Tilt angle (substantially co-axial) reduce feathering so as to effectively inhibit feathering and the coupling waved, improve axis
Hold service life.
In the present embodiment, the tail-rotor blade 21 is made of high-strength carbon fiber-epoxy composite material, tail-rotor blade 21
Windward side edge be coated with nickel alloy iron clad layer, can not only improve service life and anti-sandstone ability, and pass through setting
Nickel alloy iron clad layer improves 21 flutter stability of tail-rotor blade, and reduce by 21 hinge power of tail-rotor blade, it can be achieved that center of gravity Forward
Square；One end end that the tail-rotor rotor shaft 1 is used to connect with tail-rotor paddle components is equipped with dynamic balance weight disk 25, passes through tune
It saves counterweight and realizes good dynamic balancing.
The invention also discloses a kind of using the helicopter tail rotor displacement helicopter of displacement disc assembly, described to go straight up to tail
Paddle displacement is installed on the helicopter with displacement disc assembly, can not only realize tail-rotor displacement by displacement disk, and can pass through change
It is realized away from disk and the torque of tail-rotor rotor shaft is transmitted, and realize the high-speed rotation of displacement disk, extend bearing service life.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (7)
1. a kind of helicopter tail rotor displacement displacement disc assembly, it is characterised in that: including can slide axially along tail-rotor rotor shaft
And the displacement disk of tail-rotor rotor shaft is coated at the mode of tail-rotor rotor shaft transmission cooperation, is coated at displacement disk for driving displacement
The displacement sleeve of disk sliding and for driving displacement sleeve along tail-rotor rotor shaft driving assembly in axial sliding, the displacement disk
On be provided with drive rod for connecting with paddle components, the displacement disk is connected by angular contact ball bearing and the rotation of displacement sleeve
It connects.
2. helicopter tail rotor displacement displacement disc assembly according to claim 1, it is characterised in that: the displacement disk passes through
Slip ring and tail-rotor rotor shaft transmission cooperate, and be provided between the displacement disk and tail-rotor rotor shaft for transmit torque from
Lubricate annular thin wall part.
3. helicopter tail rotor displacement displacement disc assembly according to claim 1, it is characterised in that: the driving component packet
Include steering engine, on the outside of displacement sleeve and the pull rod of steering engine transmission connection and the displacement being set between pull rod and displacement sleeve
Rocker arm, the steering engine are fixed on a tail-rotor support, and the tail-rotor rotor shaft is pivotally supported in tail-rotor support, institute
The output end for stating steering engine is located in tail-rotor support, and the rudder of steering engine output end is protruded into tail-rotor support and be set in described pull rod one end
Machine rocker arm is hinged, and the pull rod other end stretches out hinged with distance-variable rocker arm one end outside tail-rotor support, the distance-variable rocker arm other end and displacement set
Cylinder is hinged.
4. helicopter tail rotor displacement displacement disc assembly according to claim 3, it is characterised in that: on the tail-rotor support
It is provided with the connecting rod with distance-variable rocker arm cooperation, between pull rod and displacement sleeve, which shakes the connecting rod with displacement
Arm is hinged, and the other end and the linking arm that tail-rotor support is equipped with are hinged.
5. helicopter tail rotor displacement displacement disc assembly according to claim 1, it is characterised in that: the displacement disk is close
One end of paddle components is provided with the first sealing cover, and displacement sleeve is provided with the second sealing cover close to one end of paddle components, becomes
The other end away from disk and displacement sleeve is provided with for forming the third sealing cover sealed jointly to displacement disk and displacement sleeve.
6. helicopter tail rotor displacement displacement disc assembly according to claim 5, it is characterised in that: the tail-rotor blade group
Part includes pressing from both sides and being fixed on tail-rotor paddle with the tail-rotor axle journal of tail-rotor rotor axis connection, with the tail-rotor paddle that tail-rotor axle journal is rotatably assorted
Tail-rotor blade on folder, the tail-rotor paddle press from both sides one end outer wall close to tail-rotor rotor shaft equipped with first for connecting with drive rod
Radially connected portion, the windward side of the first radially connected portion and tail-rotor blade are located at ipsilateral, and the displacement disk is close to tail-rotor paddle
The outer wall of one end is pressed from both sides equipped with the second radially connected portion for connecting with drive rod, the drive rod both ends are radial with first respectively
Interconnecting piece and the second radially connected portion are hinged.
7. a kind of helicopter using helicopter tail rotor displacement displacement disc assembly described in any one of claims 1 to 6,
Be characterized in that: the helicopter tail rotor displacement is installed on the helicopter with displacement disc assembly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315049 | 2018-11-06 | ||
| CN2018113150490 | 2018-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109502010A true CN109502010A (en) | 2019-03-22 |
Family
ID=65756937
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822277026.7U Active CN210027887U (en) | 2018-11-06 | 2018-12-29 | Variable-pitch disc assembly for transferring torque of helicopter rotor shaft and helicopter |
| CN201811639384.6A Withdrawn CN109502010A (en) | 2018-11-06 | 2018-12-29 | Helicopter tail rotor displacement displacement disc assembly and helicopter |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822277026.7U Active CN210027887U (en) | 2018-11-06 | 2018-12-29 | Variable-pitch disc assembly for transferring torque of helicopter rotor shaft and helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN210027887U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210027887U (en) * | 2018-11-06 | 2020-02-07 | 珠海隆华直升机科技有限公司 | Variable-pitch disc assembly for transferring torque of helicopter rotor shaft and helicopter |
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| CN205707301U (en) * | 2016-04-20 | 2016-11-23 | 程靖 | A kind of pulp distance varying mechanism |
| CN107000836A (en) * | 2014-08-08 | 2017-08-01 | 莱奥纳多有限公司 | Helicopter countertorque rotor |
| RU2656737C1 (en) * | 2016-12-13 | 2018-06-06 | федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" | Skew machine |
| CN207725606U (en) * | 2017-08-09 | 2018-08-14 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of rotor wing unmanned aerial vehicle tail-rotor distance changing mechanism |
| CN207875998U (en) * | 2018-02-08 | 2018-09-18 | 天津曙光天成科技有限公司 | A kind of tail-rotor structure and the unmanned plane with it |
| CN210027887U (en) * | 2018-11-06 | 2020-02-07 | 珠海隆华直升机科技有限公司 | Variable-pitch disc assembly for transferring torque of helicopter rotor shaft and helicopter |
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2018
- 2018-12-29 CN CN201822277026.7U patent/CN210027887U/en active Active
- 2018-12-29 CN CN201811639384.6A patent/CN109502010A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5071319A (en) * | 1987-09-30 | 1991-12-10 | The Boeing Company | Low maintenance, advanced technology swashplate |
| CN107000836A (en) * | 2014-08-08 | 2017-08-01 | 莱奥纳多有限公司 | Helicopter countertorque rotor |
| CN204527631U (en) * | 2015-03-19 | 2015-08-05 | 河南金原碟科技有限公司 | Multi-rotor aerocraft oar dish |
| CN105667786A (en) * | 2016-01-12 | 2016-06-15 | 清华大学深圳研究生院 | Tail rotor driving system of helicopter, control method thereof and helicopter |
| CN205707301U (en) * | 2016-04-20 | 2016-11-23 | 程靖 | A kind of pulp distance varying mechanism |
| CN106081102A (en) * | 2016-08-11 | 2016-11-09 | 深圳天鹰兄弟无人机创新有限公司 | A kind of unmanned plane and bar thick stick formula tail-rotor distance changing mechanism thereof |
| RU2656737C1 (en) * | 2016-12-13 | 2018-06-06 | федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" | Skew machine |
| CN207725606U (en) * | 2017-08-09 | 2018-08-14 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of rotor wing unmanned aerial vehicle tail-rotor distance changing mechanism |
| CN207875998U (en) * | 2018-02-08 | 2018-09-18 | 天津曙光天成科技有限公司 | A kind of tail-rotor structure and the unmanned plane with it |
| CN210027887U (en) * | 2018-11-06 | 2020-02-07 | 珠海隆华直升机科技有限公司 | Variable-pitch disc assembly for transferring torque of helicopter rotor shaft and helicopter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210027887U (en) | 2020-02-07 |
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Application publication date: 20190322 |
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