CN204383742U - A kind of screw propeller - Google Patents
A kind of screw propeller Download PDFInfo
- Publication number
- CN204383742U CN204383742U CN201520029241.9U CN201520029241U CN204383742U CN 204383742 U CN204383742 U CN 204383742U CN 201520029241 U CN201520029241 U CN 201520029241U CN 204383742 U CN204383742 U CN 204383742U
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- CN
- China
- Prior art keywords
- propeller
- pitch
- swivel eye
- rotating ring
- rocking arm
- 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
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Abstract
The utility model discloses a kind of screw propeller.It is characterized in that the two ends of distance-variable rocker arm (2) connect propeller blade (1) and pitch-change-link (14) respectively, the other end of pitch-change-link (14) is connected with one end of swivel eye rocking arm (5), and swivel eye rocking arm (5) is arranged on swivel eye (11).Slide cartridge (8) is connected with ball pivot (10) and is placed on screw propeller oar axle (9).Bearing (12) is connected with between swivel eye (11) and non-rotating ring (13).Non-rotating ring rocking arm (6) is arranged on non-rotating ring (13) and goes up and be connected with actuator (7).Any angle that propeller blade (1) rotates around screw propeller oar axle (9) is just producing, zero, negative pitch, i.e. feathering.It is differential that it has the pitch generation regulating engine speed, raising propeller efficiency, make to forward to the propeller blade of symmetric position, produces the function of operating torque.Propeller blades efficiency is provided and controls flight attitude and use.
Description
Technical field
The utility model relates to a kind of screw propeller, particularly a kind of feathering screw propeller.
Background technology
Aircraft nonuniform pitch propeller of the prior art, as spacing variable speed screw oar and the aerodynamic propellers of constant-speed variable-pitch propeller, spacing variable speed screw oar, band autonomous cruise speed system, the pitch that driving engine is corresponding different under different rotating speeds is made after its objective is work, thus reach most effective, the most fuel-efficient state, makes the economy of flight best.Its structure is generally that propeller hub 3 is connected with screw propeller oar axle 9, and propeller blade 1 is connected in propeller hub 3 through bearing 4.Propeller blade 1 is rotated in propeller hub 3 by bearing 4.But its weak point is, the change of the pitch of propeller blade 1 is all synchronous, and screw propeller rotates a circle pitch can not mechanical periodicity, therefore the pitch change application of screw propeller can not be controlled at the flight attitude of aircraft.In background technology, asynchronous, the screw propeller of pitch change of the propeller blade 1 feathering screw propeller that pitch can produce mechanical periodicity that rotates a circle still belongs to blank.
Summary of the invention
In order to fill up the blank part in background technology, the purpose of this utility model is to provide a kind of feathering screw propeller.Technical solution of the present utility model is: propeller hub 3 is connected with screw propeller oar axle 9, and propeller blade 1 is connected in propeller hub 3 through bearing 4.The two ends of distance-variable rocker arm 2 connect propeller blade 1 and pitch-change-link 14 respectively, and the other end of pitch-change-link 14 is connected with one end of swivel eye Rocker arm 5, and swivel eye Rocker arm 5 is arranged on swivel eye 11.Slide cartridge 8 is connected with ball pivot 10 and is placed on screw propeller oar axle 9.Bearing 12 is connected with between swivel eye 11 and non-rotating ring 13.Non-rotating ring rocking arm 6 to be arranged on non-rotating ring 13 and to be connected with actuator 7.Non-rotating ring rocking arm 6 accepts the actuating force from actuator 7.Pitch-change-link 14 is connected with distance-variable rocker arm 2 and swivel eye Rocker arm 5, non-rotating ring rocking arm 6 all adopts oscillating bearing with the connection of actuator 7.Positive pitch needed for the utility model can to produce around any angle that screw propeller oar axle 9 rotates at propeller blade 1, zero pitch, negative pitch, i.e. feathering.It not only has the adjustment engine speed that common displacement oar has like this, improves the function of propeller efficiency, the pitch of the propeller blade 1 forwarding symmetric position to can also be made to occur differential, produces operating torque, thus aircraft is carried out to the control of direct force.
Accompanying drawing explanation
Fig. 1 is that master of the present utility model is depending on adding partial schematic sectional view;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is symmetric position blade view in normal operation;
Fig. 4 is feathering propeller arrangement view when carrying out feathering;
Fig. 5 is symmetric position blade view when carrying out feathering.
Fig. 6 is feathering propeller arrangement schematic diagram when carrying out common displacement.
Fig. 7 is symmetric position blade view when carrying out common displacement.
Being labeled as in accompanying drawing: 1-propeller blade, 2-distance-variable rocker arm, 3-propeller hub, 4-bearing, 5-swivel eye rocking arm, the non-rotating ring rocking arm of 6-, 7-actuator, 8-slide cartridge, 9-screw propeller oar axle, 10-ball pivot, 11-swivel eye, 12-bearing, the non-rotating ring of 13-, 14-pitch-change-link.
Detailed description of the invention
Below in conjunction with drawings and Examples, a kind of feathering screw propeller of the present utility model is described in further detail, but not as foundation the utility model being done to any restriction.
Embodiment.A kind of feathering screw propeller, as shown in Figure 1.Propeller hub 3 is connected with screw propeller oar axle 9, and propeller blade 1 is connected in propeller hub 3 through bearing 4.The two ends of distance-variable rocker arm 2 connect propeller blade 1 and pitch-change-link 14 respectively, and the other end of pitch-change-link 14 is connected with one end of swivel eye Rocker arm 5, and swivel eye Rocker arm 5 is arranged on swivel eye 11.Slide cartridge 8 is connected with ball pivot 10 and is placed on screw propeller oar axle 9.Bearing 12 is connected with between swivel eye 11 and non-rotating ring 13.Each propeller blade 1 is connected with a distance-variable rocker arm 2, and each distance-variable rocker arm 2 is connected with a swivel eye Rocker arm 5 by pitch-change-link 14.Propeller blade 1 can be rotated in propeller hub 3 by bearing 4.Handle distance-variable rocker arm 2 can control propeller blade 1 around the axis of self and rotate to an angle.Non-rotating ring rocking arm 6 to be arranged on non-rotating ring 13 and to be connected with actuator 7.Non-rotating ring rocking arm 6 accepts the actuating force from actuator 7.Pitch-change-link 14 is connected with distance-variable rocker arm 2 and swivel eye Rocker arm 5, non-rotating ring rocking arm 6 all adopts oscillating bearing with the connection of actuator 7.Non-rotating ring rocking arm 6 accepts the actuating force from actuator 7, and this actuating force is passed on swivel eye 11 by bearing 12.Slide cartridge 8 ensures that the parts that it connects can slide along screw propeller oar axle 9.Ball pivot 10 ensures that the parts that it connects can run-off the straight.
When carrying out feathering operation, non-rotating ring rocking arm 6 accepts the actuating force from actuator 7, the run-off the straight of whole mechanism, as Fig. 4, swivel eye Rocker arm 5 promotes distance-variable rocker arm 2 by pitch-change-link 14 and propeller blade 1 is rotated around own axes, and symmetric position propeller blade 1 state of angle of attack is as Fig. 5.Like this, rotate to propeller blade 1 angle of attack mechanical periodicity of diverse location so the lift also mechanical periodicity of generation, force action effect when propeller blade 1 rotates just creates a pulling force and the moment perpendicular to screw propeller S. A., and this moment can be used for carrying out flight attitude control to aircraft.
When carrying out the operation of common displacement, non-rotating ring rocking arm 6 accepts the actuating force from actuator 7, whole mechanism slides along screw propeller oar axle 9, as Fig. 6, swivel eye Rocker arm 5 promotes distance-variable rocker arm 2 by pitch-change-link 14 and propeller blade 1 is rotated around own axes, and symmetric position propeller blade 1 state of angle of attack is as Fig. 7.Like this, under different flying speeds, propeller blade just can be made to have different pitches, thus reach the object of propeller blades efficiency.
Feathering operation and the operation of common displacement can be carried out simultaneously.
The utility model is for propeller blades efficiency and the flight attitude controlling aircraft.
Claims (3)
1. feathering screw propeller, propeller hub (3) is connected with screw propeller oar axle (9), propeller blade (1) is connected in propeller hub (3) through bearing (4), it is characterized in that the two ends of distance-variable rocker arm (2) connect propeller blade (1) and pitch-change-link (14) respectively, the other end of pitch-change-link (14) is connected with one end of swivel eye rocking arm (5), swivel eye rocking arm (5) is arranged on swivel eye (11), slide cartridge (8) is connected with ball pivot (10) and is placed on screw propeller oar axle (9), bearing (12) is connected with between swivel eye (11) and non-rotating ring (13), non-rotating ring rocking arm (6) is arranged on non-rotating ring (13) and goes up and be connected with actuator (7).
2., according to the feathering screw propeller described in claim 1, it is characterized in that the connection of pitch-change-link (14) and distance-variable rocker arm (2) and swivel eye rocking arm (5), the connection of non-rotating ring rocking arm (6) and actuator (7) all adopts oscillating bearing.
3. according to the feathering screw propeller described in claim 1, it is characterized in that each propeller blade (1) is connected with a distance-variable rocker arm (2), each distance-variable rocker arm (2) is connected with a swivel eye rocking arm (5) by pitch-change-link (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029241.9U CN204383742U (en) | 2015-01-10 | 2015-01-10 | A kind of screw propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029241.9U CN204383742U (en) | 2015-01-10 | 2015-01-10 | A kind of screw propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204383742U true CN204383742U (en) | 2015-06-10 |
Family
ID=53356481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520029241.9U Expired - Fee Related CN204383742U (en) | 2015-01-10 | 2015-01-10 | A kind of screw propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204383742U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943859A (en) * | 2015-07-08 | 2015-09-30 | 芜湖万户航空航天科技有限公司 | Unmanned helicopter |
| CN105273735A (en) * | 2015-11-06 | 2016-01-27 | 太原科技大学 | Heating tank homogenizing device for pitch processing base station |
| CN106114844A (en) * | 2016-07-25 | 2016-11-16 | 燕山大学 | Helicopter swing wing 4PSS+SP type many driving means in parallel |
| CN106553752A (en) * | 2015-09-30 | 2017-04-05 | 重庆市彭水县东征五金经营部 | Propeller blade whirligig |
| CN109278985A (en) * | 2018-11-20 | 2019-01-29 | 西安君晖航空科技有限公司 | A kind of variable propeller pitch device and its installation method |
| CN114126963A (en) * | 2019-07-23 | 2022-03-01 | 松下知识产权经营株式会社 | Motor unit and flying object |
-
2015
- 2015-01-10 CN CN201520029241.9U patent/CN204383742U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104943859A (en) * | 2015-07-08 | 2015-09-30 | 芜湖万户航空航天科技有限公司 | Unmanned helicopter |
| CN106553752A (en) * | 2015-09-30 | 2017-04-05 | 重庆市彭水县东征五金经营部 | Propeller blade whirligig |
| CN105273735A (en) * | 2015-11-06 | 2016-01-27 | 太原科技大学 | Heating tank homogenizing device for pitch processing base station |
| CN106114844A (en) * | 2016-07-25 | 2016-11-16 | 燕山大学 | Helicopter swing wing 4PSS+SP type many driving means in parallel |
| CN109278985A (en) * | 2018-11-20 | 2019-01-29 | 西安君晖航空科技有限公司 | A kind of variable propeller pitch device and its installation method |
| CN109278985B (en) * | 2018-11-20 | 2023-09-29 | 西安君晖航空科技有限公司 | Pitch variable device and installation method thereof |
| CN114126963A (en) * | 2019-07-23 | 2022-03-01 | 松下知识产权经营株式会社 | Motor unit and flying object |
| CN114126963B (en) * | 2019-07-23 | 2024-04-19 | 松下知识产权经营株式会社 | Motor unit and flying object |
| US11975829B2 (en) | 2019-07-23 | 2024-05-07 | Panasonic Intellectual Property Management Co., Ltd. | Motor unit and aircraft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20200110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |