CN206520753U - Moment of torsion induction type pitch-variable system - Google Patents
Moment of torsion induction type pitch-variable system Download PDFInfo
- Publication number
- CN206520753U CN206520753U CN201720213709.9U CN201720213709U CN206520753U CN 206520753 U CN206520753 U CN 206520753U CN 201720213709 U CN201720213709 U CN 201720213709U CN 206520753 U CN206520753 U CN 206520753U
- Authority
- CN
- China
- Prior art keywords
- servo
- base
- actuated seat
- semiaxis
- connector
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
Moment of torsion induction type pitch-variable system, including base and servo-actuated seat, locating dowel is fixedly mounted in the middle part of base, locating dowel is connected with servo-actuated seat, servo-actuated seat can be moved axially along locating dowel, energy relative positioning post is rotated again, spring is installed between base and servo-actuated seat, both ends of the spring is touched with base and servo-actuated seat respectively, spring, which is provided, prevents the servo-actuated power for seating against nearly base, at least two paddle shafts are set between base and servo-actuated seat, all paddle shafts are circularly and evenly distributed around locating dowel, every paddle shaft one end is by setting the first connector to be connected with base, the other end is by setting the second connector to be connected with servo-actuated seat, when servo-actuated seat respect thereto is rotated, servo-actuated seat can drive all paddle shaft respect theretos to swing, a piece of blade is installed on every paddle shaft.The utility model makes blade when meeting with upper air current or fast lifting steering, can improve or reduce in time lift, unmanned function is made action in time, manipulation sensitivity is higher, stability is more preferable, safer.
Description
Technical field
The utility model is related to aircraft accessory technical field, specifically a kind of moment of torsion induction type pitch-variable system.
Background technology
The rotor of current multi-rotor unmanned aerial vehicle is commonly to be directly connected to by propeller hub, rotated into by changing each propeller and
Change thrust, so that the posture to unmanned plane is controlled.It is well known that the pneumatic efficiency of rotor assembly has directly with its size
Relation.And large scale rotor rotational inertia is big, rotating speed response is slow.Cause the reduction of UAV Attitude control performance.Flight stability
Difference, security are low, controllability is low.
Utility model content
To solve the above problems, the purpose of this utility model be to overcome the deficiencies in the prior art there is provided one kind can and
Shi Jinhang manipulation feedbacks, instantaneously improve or reduce the moment of torsion induction type pitch-variable system of lift as requested.
The utility model to achieve the above object, is achieved through the following technical solutions：Moment of torsion induction type pitch-variable system, bag
Include and locating dowel is fixedly mounted in the middle part of base and servo-actuated seat, base, locating dowel is connected with servo-actuated seat, servo-actuated seat can be along positioning axis of a cylinder
To movement, but can relative positioning post rotate, spring is installed between base and servo-actuated seat, both ends of the spring respectively with base and servo-actuated seat
Touch, spring, which is provided, prevents the servo-actuated power for seating against nearly base, and at least two paddle shafts, all oars are set between base and servo-actuated seat
Rachis is circularly and evenly distributed around locating dowel, and every paddle shaft one end is by setting the first connector to be connected with base, the other end
By setting the second connector to be connected with servo-actuated seat, when being servo-actuated the rotation of seat respect thereto, servo-actuated seat can drive all paddle shaft phases
Base is swung, a piece of blade is installed on every paddle shaft.
Further to realize the purpose of this utility model, following technical scheme can also be used：Every paddle shaft is by
One semiaxis and the second semiaxis are constituted, and blade is arranged between the first semiaxis and the second semiaxis, and the first semiaxis is connected with base, and second
Semiaxis is connected with servo-actuated seat.The first described connector top is fixedly connected with the first semiaxis, the second connector bottom and second
Semiaxis is fixedly connected, and is respectively mounted a bolt in every paddle shaft, and the two ends of bolt are passed outside paddle shaft respectively with corresponding
A connection piece and the connection of the second connector.The first described connector is the pass being made up of the first ball cup and the first connecting ball head
Head rod is installed on bearings, the first ball cup, head rod is connected with base, the first connecting ball head is located at the first ball
It is slidably matched in headstock and with the first ball cup sphere, the second connector is made up of the second ball cup and the second connecting ball head
Second connecting rod is installed, the second connecting rod is connected with base on oscillating bearing, the second ball cup, the second connecting ball head is located at second
It is slidably matched in ball cup and with the second ball cup sphere, the connecting ball head of screw bolt passes first, paddle shaft and the second connection
Bulb, three is connected.Described the first connector and the second connector is universal joint.The first described connector and second
Connector is Flexible Connector.Described the second semiaxis and the first semiaxis is taper, and blade is located at the second semiaxis and first
Between the bottom of the taper of semiaxis.The spring is installed on locating dowel periphery.
The utility model has the advantage of：The displacement oar sets base and servo-actuated seat, and servo-actuated seat can connect by first
Moved up and down while fitting, the second connector and the rotation of paddle shaft respect thereto, paddle shaft can by the first connector and
Second connector produces the deflection of horizontal direction and the movement of vertical direction, so that blade horizontally rotates certain angle to change
The pitch of blade, then lift increases for pitch increase, and pitch reduces then lift and reduced.The utility model makes blade meet with high air
When stream or fast lifting steering, the moment of motor acceleration or deceleration, the rotation speed change of servo-actuated seat lags behind the rotation speed change of base,
Make to relatively rotate by a certain angle between base and servo-actuated seat, tilted while driving paddle shaft to swing, so that blade horizontally rotates
To change pitch, so as to improve in time or reduction lift, unmanned function is made action in time, manipulate sensitivity it is higher,
Stability is more preferable, more safe and reliable.
Brief description of the drawings
Fig. 1 is moment of torsion induction type pitch-variable system structural representation described in the utility model；Fig. 2 is Fig. 1 top view；Figure
3 be the line A-A cutaway view Amplified image along Fig. 2；Fig. 4 is Fig. 1 left view enlarged drawing；Fig. 5 is Fig. 1 stereogram；Fig. 6 is that this practicality is new
Another status architecture schematic diagram of type；Fig. 7 is Fig. 6 upward view；Fig. 8 is Fig. 6 left view enlarged drawing.
Reference：1 base, 2 servo-actuated seats, 3 locating dowels, 4 springs, 5 paddle shafts, 6 blades, 7 first semiaxis, 8 first are consolidated
Fixed set, 9 second semiaxis, 10 second fixed covers, 11 first ball cups, 12 first connecting ball heads, 13 head rods, 14 second balls
Headstock, 15 second connecting ball heads, 16 second connecting rods.
Embodiment
Moment of torsion induction type pitch-variable system described in the utility model, as shown in figure 1, including base 1 and servo-actuated seat 2, base 1
Locating dowel 3 is fixedly mounted in middle part, and locating dowel 3 can be hinged with the servo-actuated middle part of seat 2.As shown in figure 3, the servo-actuated middle part of seat 2 is opened up with determining
The through hole of position post 3.Servo-actuated seat 2 can be moved axially along locating dowel 3, and energy relative positioning post 3 is rotated.Base 1 and servo-actuated seat 2 it
Between install spring 4.It is oriented to provide spring 4 and makes to be servo-actuated seat 2 by elastic force uniformly, spring 4 can be set using the periphery of locating dowel 3
Scheme, the two ends of spring 4 are touched with base 1 and servo-actuated seat 2 respectively.Spring 4, which can begin to provide, prevents servo-actuated seat 2 close to base 1
Power, when rotating simultaneously close to be servo-actuated the respect thereto 1 of seat 2, the elastic force resetted is provided to be servo-actuated seat 2.Base 1 and servo-actuated seat 2 it
Between at least two paddle shafts 5 are set, paddle shaft 5 is circumferentially distributed around locating dowel 3.The one end of paddle shaft 5 is connected by setting first
Part is connected with the first connector with base 1, and the other end is by setting the second connector to be connected with servo-actuated seat 2.Servo-actuated seat 2 is the bottom of with respect to
When seat 1 is rotated, servo-actuated seat 2 can drive all respect theretos 1 of paddle shaft 5 to swing.A piece of blade 6 is installed on every paddle shaft 5.
Paddle shaft 5, which is swung, can drive blade 6 thereon to horizontally rotate.As shown in Fig. 2 when the quantity of paddle shaft 5 is two, two blades
Angle between axle 5 is 180 °, when the quantity of paddle shaft 5 is three, and the angle between adjacent blades axle 5 is 120 °, paddle shaft 5
Quantity when being four, the angle between adjacent blades axle 5 is 90 °, by that analogy.The output shaft of base 1 and power source is fixed
Connection.Base 1 drives servo-actuated seat 2 to rotate by paddle shaft 5.When the speedup of base 1 or the moment of deceleration, due to being servo-actuated the speed of seat 2
Degree change is delayed, therefore, and servo-actuated seat 2 and base 1 can be relatively rotated.Again due to being servo-actuated the spacing of seat 2 and base 1 by paddle shaft 5
Constraint, therefore, while being servo-actuated seat 2 and the relative rotation of base 1, servo-actuated distance between seat 2 and base 1 can reduce, that is, be servo-actuated
Seat 2 is along the radial movement compresses spring 4 of locating dowel 3.Paddle shaft 5 can produce level side by the first connector and the second connector
To deflection and vertical direction movement, so as to change the pitch of blade 6, this structure makes unmanned plane accelerate lifting or slow down
The moment of reduction, the synchronous forward or reverse of blade 6 is to change pitch, instantaneously to improve lift or reduce lift, so as to timely
Reacted according to control, greatly improve the sensitivity of unmanned plane.After acceleration or deceleration certain time, base 1 and servo-actuated seat 2
Rotating speed is gradually synchronous, and the thrust of spring 4 makes base 1 be resetted with servo-actuated seat 2, and the position before the recurrence of blade 6.
Blade 6 can be fixedly connected with paddle shaft 5.But taken up space less during unmanned plane to deposit, blade 6 is cut with scissors with paddle shaft 5
Connect.Locating dowel 3 is hinged with the servo-actuated middle part of seat 2, is servo-actuated the middle part perforate of seat 2, and locating dowel 3 is located in hole, and this structure can make to be servo-actuated
Seat 2 is moved up and down and rotated along locating dowel 3, and the servo-actuated seat 2 of 3 pairs of locating dowel plays a part of spacing and is oriented to.
Every paddle shaft 5 can be made up of the first semiaxis 7 and the second semiaxis 9, and blade 6 is arranged on the first semiaxis 7 and the second half
Between axle 9.By selecting the length ratio of the first semiaxis 7 and the second semiaxis 9, blade 6 can be conveniently adjusted in the position of paddle shaft 5,
Height and position of the blade 6 between base 1 and servo-actuated seat 2 can be adjusted.This structure can also pass through the first semiaxis 7 and
Two semiaxis 9 clamp blade 6, make the fix stably of blade 6, it is to avoid blade 6 is overturn or mobile relative to paddle shaft 5 in vertical direction, together
When be also convenient for changing blade.
The first described connector top is fixedly connected with the first semiaxis 7, and the second connector bottom is fixed with the second semiaxis 9
Connection.It is respectively mounted a bolt 17 in every paddle shaft 5, it is outer respectively with corresponding first that the two ends of bolt 17 pass paddle shaft 5
Connector and the connection of the second connector.This structure can pack up the rotation of blade 6, so that reduce the space of unmanned plane occupancy,
Convenient for collecting.This structure can also clamp blade 6 by the first semiaxis 7 and the second semiaxis 9, make the fix stably of blade 6, it is to avoid
Blade 6 is overturn or mobile relative to paddle shaft 5 in vertical direction.
The first described connector is the oscillating bearing being made up of the first ball cup 11 and the first connecting ball head 12, the first ball
Head rod 13 is installed, head rod 13 is connected with the end of base 1 on headstock 11, the first connecting ball head 12 is located at first
It is slidably matched in ball cup 11 and with the sphere of the first ball cup 11, the second connector is by the second ball cup 14 and the second connected ball
Second connecting rod 16 is installed, the second connecting rod 16 and the end of base 1 are cut with scissors on first 15 oscillating bearings constituted, the second ball cup 14
Connect, the second connecting ball head 15 is located in the second ball cup 14 and is slidably matched with the sphere of the second ball cup 14.Bolt 17 is worn successively
The first connecting ball head 12, the connecting ball head 15 of paddle shaft 5 and second are crossed, three is connected.This structure makes the first connector and
Two connector flexible swingings, the response time is short.The structure of bolt 17 can play the position-limiting action to being servo-actuated seat 2, it is to avoid servo-actuated seat 2
Caused to depart from base 1 by lift is excessive.
Described the first connector and the second connector is universal joint.This infrastructure cost is relatively low, is connected firmly.
Described the first connector and the second connector is Flexible Connector.Flexible Connector can be the elastic material such as rubber
Material, the first connector and the second connector complete to swing by the self-deformation of material, and cost is relatively low, but service life is shorter.
Described the second semiaxis 9 and the first semiaxis 7 is taper, and blade 6 is located at the cone of the second semiaxis 9 and the first semiaxis 7
Between the bottom of shape.This structure can make the second semiaxis 9 and the first semiaxis 7 and corresponding connector contact area smaller, it is to avoid
When second semiaxis 9 and the first semiaxis 7 are rocked interference and collision is produced with corresponding connector.
The spring 4 is installed on the periphery of locating dowel 3.This structure can avoid the generation of the stress of spring 4 is crooked from being difficult to reset
Phenomenon occur.
The technical solution of the utility model is not restricted in the range of embodiment described in the utility model.This practicality is new
The technology contents of the not detailed description of type are known technology.
Claims (8)
1. moment of torsion induction type pitch-variable system, it is characterised in that：Including base (1) and servo-actuated seat (2), fixed in the middle part of base (1)
Locating dowel (3) is installed, locating dowel (3) is connected with servo-actuated seat (2), servo-actuated seat (2) can be moved axially along locating dowel (3), and energy
Relative positioning post (3) rotate, between base (1) and servo-actuated seat (2) installation spring (4), spring (4) two ends respectively with base (1)
Touched with servo-actuated seat (2), spring (4) provides the power for preventing servo-actuated seat (2) close to base (1), base (1) and servo-actuated seat (2) it
Between at least two paddle shafts (5) are set, all paddle shafts (5) are circularly and evenly distributed around locating dowel (3), every paddle shaft (5)
One end is by setting the first connector to be connected with base (1), and the other end is connected by the second connector of setting with servo-actuated seat (2),
When servo-actuated seat (2) respect thereto (1) is rotated, servo-actuated seat (2) can drive all paddle shafts (5) respect thereto (1) to swing, every oar
It is each on rachis (5) that a piece of blade (6) is installed.
2. moment of torsion induction type pitch-variable system according to claim 1, it is characterised in that：Every paddle shaft (5) is by
One semiaxis (7) and the second semiaxis (9) are constituted, and blade (6) is arranged between the first semiaxis (7) and the second semiaxis (9), the first semiaxis
(7) it is connected with base (1), the second semiaxis (9) is connected with servo-actuated seat (2).
3. moment of torsion induction type pitch-variable system according to claim 2, it is characterised in that：The first described connector top
It is fixedly connected, the second connector bottom is fixedly connected with the second semiaxis (9), pacifies in every paddle shaft (5) with the first semiaxis (7)
A bolt (17) is filled, the two ends of bolt (17) pass paddle shaft (5) and connected respectively with corresponding first connector and second outside
Part is connected.
4. the moment of torsion induction type pitch-variable system according to claim 1-3 any one, it is characterised in that：Described first
Connector is installed on the oscillating bearing being made up of the first ball cup (11) and the first connecting ball head (12), the first ball cup (11)
Head rod (13), head rod (13) is connected with base (1), and the first connecting ball head (12) is located at the first ball cup (11)
Interior and be slidably matched with the first ball cup (11) sphere, the second connector is by the second ball cup (14) and the second connecting ball head
(15) the second connecting rod (16), the second connecting rod (16) and base (1) are installed on the oscillating bearing constituted, the second ball cup (14)
Connection, the second connecting ball head (15) is located in the second ball cup (14) and is slidably matched with the second ball cup (14) sphere, bolt
(17) the first connecting ball head (12), paddle shaft (5) and the second connecting ball head (15) are sequentially passed through, three is connected.
5. moment of torsion induction type pitch-variable system according to claim 1, it is characterised in that：The first described connector and
Two connectors are universal joint.
6. moment of torsion induction type pitch-variable system according to claim 1, it is characterised in that：The first described connector and
Two connectors are Flexible Connector.
7. moment of torsion induction type pitch-variable system according to claim 2, it is characterised in that：Described the second semiaxis (9) and
First semiaxis (7) is taper, and blade (6) is located between the bottom of the taper of the second semiaxis (9) and the first semiaxis (7).
8. moment of torsion induction type pitch-variable system according to claim 1, it is characterised in that：The spring (4) is installed on fixed
Position post (3) periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720213709.9U CN206520753U (en) | 2017-03-07 | 2017-03-07 | Moment of torsion induction type pitch-variable system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720213709.9U CN206520753U (en) | 2017-03-07 | 2017-03-07 | Moment of torsion induction type pitch-variable system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206520753U true CN206520753U (en) | 2017-09-26 |
Family
ID=59902448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720213709.9U Expired - Fee Related CN206520753U (en) | 2017-03-07 | 2017-03-07 | Moment of torsion induction type pitch-variable system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206520753U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109050884A (en) * | 2018-06-21 | 2018-12-21 | 深圳市龙云创新航空科技有限公司 | A kind of the proprotor head and unmanned plane of automatic adjustable-pitch |
| CN109484637A (en) * | 2018-12-24 | 2019-03-19 | 沈阳旋飞航空技术有限公司 | A kind of rotor pulp distance varying mechanism of the dynamic unmanned plane of improved oil |
| CN113306712A (en) * | 2021-05-20 | 2021-08-27 | 北斗安泽防务科技有限公司 | Unmanned aerial vehicle rotor connection structure |
-
2017
- 2017-03-07 CN CN201720213709.9U patent/CN206520753U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109050884A (en) * | 2018-06-21 | 2018-12-21 | 深圳市龙云创新航空科技有限公司 | A kind of the proprotor head and unmanned plane of automatic adjustable-pitch |
| CN109050884B (en) * | 2018-06-21 | 2022-02-18 | 深圳市龙云创新航空科技有限公司 | Automatic variable-pitch propeller rotor head and unmanned aerial vehicle |
| CN109484637A (en) * | 2018-12-24 | 2019-03-19 | 沈阳旋飞航空技术有限公司 | A kind of rotor pulp distance varying mechanism of the dynamic unmanned plane of improved oil |
| CN113306712A (en) * | 2021-05-20 | 2021-08-27 | 北斗安泽防务科技有限公司 | Unmanned aerial vehicle rotor connection structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101837195B (en) | Model airplane with vertical takeoff and landing | |
| CN206520753U (en) | Moment of torsion induction type pitch-variable system | |
| CN106585984A (en) | Rolling and rotating ornithopter | |
| CN111332462B (en) | Portable small-sized cylinder type coaxial reverse-propeller three-blade rotor type unmanned aerial vehicle | |
| CN206087292U (en) | Aircraft | |
| CN109533320B (en) | Helicopter cone type main rotor parallel driving device | |
| CN101879945A (en) | Electric tilting rotor wing unmanned aerial vehicle | |
| CN206125421U (en) | VTOL unmanned vehicles | |
| CN105966609B (en) | A kind of heavy autogyro hybrid power richochet system with variable-distance teetering rotor head | |
| CN103863562A (en) | Vertical-lifting device with combined propellers | |
| CN109515704B (en) | Ducted plume rotorcraft based on cycloidal propeller technology | |
| CN106143895A (en) | Thrust type tilt rotor aircraft | |
| CN110329497A (en) | The multi-rotor unmanned aerial vehicle and its control method of a kind of paddle face variable-angle | |
| CN102490898A (en) | Coaxial dual-rotor helicopter | |
| CN108163193A (en) | A kind of active main rotor vertically taking off and landing flyer | |
| CN107416198A (en) | Aircraft and its flying method | |
| CN108238247A (en) | A kind of oil electric mixed dynamic active rotor vertically taking off and landing flyer | |
| CN110979660A (en) | Three-steering-engine direct-drive coaxial rotor system and control strategy | |
| CN110127037A (en) | A kind of cylindric vertically taking off and landing flyer using foldable single screw and grid fin | |
| CN110979652B (en) | Two-steering engine direct-drive coaxial rotor system and control strategy | |
| CN110901908A (en) | Two steering wheel dead axle displacement rotor modules and helicopter | |
| CN109455295B (en) | Rotor control device and rotor craft | |
| CN202345911U (en) | Coaxial dual-rotor helicopter | |
| CN207956057U (en) | A kind of active main rotor vertically taking off and landing flyer | |
| CN201744174U (en) | Model airplane vertically taking off and landing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170926 Termination date: 20180307 |