CN106553752A - Propeller blade whirligig - Google Patents
Propeller blade whirligig Download PDFInfo
- Publication number
- CN106553752A CN106553752A CN201510634897.8A CN201510634897A CN106553752A CN 106553752 A CN106553752 A CN 106553752A CN 201510634897 A CN201510634897 A CN 201510634897A CN 106553752 A CN106553752 A CN 106553752A
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- CN
- China
- Prior art keywords
- blade
- inner tube
- outer tube
- rotating shaft
- fixedly connected
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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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Abstract
The invention discloses a kind of propeller blade whirligig，It includes an outer tube (3)，Concentric cavity is offered in the outer tube (3)，Interior tubular shaft (4) is installed in the cavity，Inner tube (14) is installed in the dead eye of said inner tube bearing (4)，Extend outer tube (3) and be connected with interior pipe holder (1) by inner tube flat key (20) and while being connected with shift fork (17) by screw (15) in one end of the inner tube (14)，The generally hollow tubular structure of described inner tube (14)，Which is internally provided with a rotating shaft (19)，Extend inner tube (14) in one end of the rotating shaft (19)，Its other end is extended inner tube (14) and is fixedly connected with blade fixed mount (6) through outer tube (3)，Described rotating shaft (19) is fixedly connected with outer tube (3) by outer tube flat key (5).The present invention can flexibly change the angle of attack size of blade according to user's actual need, so as to adapt to different operating modes.
Description
Technical field
The present invention relates to a kind of propeller blade whirligig, more particularly to a kind of blade angle can suitably be adjusted so as to change the blade whirligig of the blade angle of attack according to actual condition.
Background technology
At present, known screw refers to and rotates in air or water by blade, and engine rotation power is converted into the device of propulsive force, can have two or more leaf is connected with hub, and the one side backward of leaf is helicoid or a kind of ship's propeller for being similar to helicoid.Screw is divided into many kinds, and application is also quite varied, such as propeller of aircraft, steamer etc..The reason for screw can produce power be, its bow oar face is different with the curvature of face of blade, when blade rotates, the air-flow bow oar surface pressure big to curvature is little, and it is big that straight face of blade pressure is bordering on to curve, therefore define the pressure differential of front face of blade, so as to produce an air force for drawing forward blade, this power is exactly the power for pulling aircraft flight forward, the size of power is relevant with the size of the blade angle of attack, but the existing propeller blade angle of attack is fixed, it is impossible to arbitrarily changed according to actual condition.
The content of the invention
It is an object of the present invention to provide a kind of propeller blade whirligig, it can flexibly change the angle of attack size of blade by the operation to the device according to user's actual need, so as to adapt to different operating modes.
In the presence of solving the problems, such as background technology, it includes an outer tube 3, concentric cavity is offered in the outer tube 3, interior tubular shaft 4 is installed in the cavity, inner tube 14 is installed in the dead eye of said inner tube bearing 4, extend outer tube 3 and be connected with interior pipe holder 1 by inner tube flat key 20 and while being connected with shift fork 17 by screw 15 in one end of the inner tube 14, the generally hollow tubular structure of described inner tube 14, which is internally provided with a rotating shaft 19, extend inner tube 14 in one end of the rotating shaft 19, its other end is extended inner tube 14 and is fixedly connected with blade fixed mount 6 through outer tube 3, described rotating shaft 19 is fixedly connected with outer tube 3 by outer tube flat key 5；
Described blade fixed mount 6 passes through screw 8 and fixed mount flat key 7 and rotating shaft 19 and spins fixation, blade 11 is provided with the periphery of the blade fixed mount 6, the blade 11 is fixedly connected with blade fixed mount 6 by blade bearing 9, the root of the blade 11 is vertically and fixedly provided with connecting rod 12, and the other end of the connecting rod 12 is fixedly connected with the end face of outer tube 3 by connecting rod screw 13.
The handle of described shift fork 17 is fixed on sleeve 18 by pin 16, and the sleeve 18 is fixed at the lateral surface on inner tube bracing frame 1.
It is fixedly connected by connecting rod steady pin 10 between described connecting rod 12 and blade 11.
As a result of above technical scheme, the invention has the advantages that：The angle of attack size of blade can flexibly be changed according to user's actual need, so as to adapt to different operating modes.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, accompanying drawing to be used needed for embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of the present invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
Referring to Fig. 1, this specific embodiment is to employ the following technical solutions to be achieved, it includes an outer tube 3, concentric cavity is offered in the outer tube 3, interior tubular shaft 4 is installed in the cavity, inner tube 14 is installed in the dead eye of said inner tube bearing 4, extend outer tube 3 and be connected with interior pipe holder 1 by inner tube flat key 20 and while being connected with shift fork 17 by screw 15 in one end of the inner tube 14, the generally hollow tubular structure of described inner tube 14, which is internally provided with a rotating shaft 19, extend inner tube 14 in one end of the rotating shaft 19, its other end is extended inner tube 14 and is fixedly connected with blade fixed mount 6 through outer tube 3, described rotating shaft 19 is fixedly connected with outer tube 3 by outer tube flat key 5；
Described blade fixed mount 6 passes through screw 8 and fixed mount flat key 7 and rotating shaft 19 and spins fixation, blade 11 is provided with the periphery of the blade fixed mount 6, the blade 11 is fixedly connected with blade fixed mount 6 by blade bearing 9, the root of the blade 11 is vertically and fixedly provided with connecting rod 12, the other end of the connecting rod 12 is fixedly connected with the end face of outer tube 3 by connecting rod screw 13, the rotation around own axes of blade 11 is realized by connecting rod 12, so as to change the angle of attack size of blade 11.
The handle of described shift fork 17 is fixed on sleeve 18 by pin 16, and the sleeve 18 is fixed at the lateral surface on inner tube bracing frame 1.
It is fixedly connected by connecting rod steady pin 10 between described connecting rod 12 and blade 11.
Below in conjunction with the accompanying drawings the using method and its principle of technical scheme part in this specific embodiment are further elaborated：
One end of connecting rod 12 is connected with blade 11，The other end is connected with outer tube 3，The rotation around own axes of blade 11 can be realized，So as to change the angle of attack size of blade 11，12 power of the connecting rod input is by by key 5 and bearing 4 and the inner tube 14 being connected in rotating shaft 19 and the combination unit offer of outer tube 3，Connected by bearing 4 between inner tube 14 and outer tube 3，And can each autorotation，But it is consistent in the position movement of axis direction，14 upper end of inner tube is connected by bearing 4 with outer tube 3，Lower end is fixed on bracing frame 1 by inner tube flat key 20 and while being connected with shift fork 17 by screw 15，The handle of shift fork 17 is threaded through the sleeve 18 that pin 16 is fixed on inner tube bracing frame 1，And can rotate around pin 16 with sleeve 18，When 17 handle of shift fork is stirred up and down，Moving up and down for inner tube 14 is capable of achieving，So as to cause the change of 11 angle of attack of blade.
Finally it should be noted that：Above example only to illustrate technical scheme, rather than a limitation；Although being described in detail to the present invention with reference to the foregoing embodiments, it will be understood by those within the art that, which still can be modified to the technical scheme described in foregoing embodiments, or carry out equivalent to which part technical characteristic；And these modifications or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (3)
1. propeller blade whirligig，It is characterized in that it includes an outer tube (3)，Concentric cavity is offered in the outer tube (3)，Interior tubular shaft (4) is installed in the cavity，Inner tube (14) is installed in the dead eye of said inner tube bearing (4)，Extend outer tube (3) and be connected with interior pipe holder (1) by inner tube flat key (20) and while being connected with shift fork (17) by screw (15) in one end of the inner tube (14)，The generally hollow tubular structure of described inner tube (14)，Which is internally provided with a rotating shaft (19)，Extend inner tube (14) in one end of the rotating shaft (19)，Its other end is extended inner tube (14) and is fixedly connected with blade fixed mount (6) through outer tube (3)，Described rotating shaft (19) is fixedly connected with outer tube (3) by outer tube flat key (5)；
Described blade fixed mount (6) is spun fixation by screw (8) and fixed mount flat key (7) and rotating shaft (19), blade (11) is provided with the periphery of the blade fixed mount (6), the blade (11) is fixedly connected with blade fixed mount (6) by blade bearing (9), the root of the blade (11) is vertically and fixedly provided with connecting rod (12), and the other end of the connecting rod (12) is fixedly connected with the end face of outer tube (3) by connecting rod screw (13).
2. propeller blade whirligig according to claim 1, it is characterized in that the handle of described shift fork (17) is fixed on sleeve (18) by pin (16), the sleeve (18) is fixed at the lateral surface on inner tube bracing frame (1).
3. propeller blade whirligig according to claim 1, it is characterised in that be fixedly connected by connecting rod steady pin (10) between described connecting rod (12) and blade (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510634897.8A CN106553752A (en) | 2015-09-30 | 2015-09-30 | Propeller blade whirligig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510634897.8A CN106553752A (en) | 2015-09-30 | 2015-09-30 | Propeller blade whirligig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106553752A true CN106553752A (en) | 2017-04-05 |
Family
ID=58415013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510634897.8A Pending CN106553752A (en) | 2015-09-30 | 2015-09-30 | Propeller blade whirligig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106553752A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109533290A (en) * | 2018-11-15 | 2019-03-29 | 中国直升机设计研究所 | A kind of pitch-change-link angle positioning device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR42239E (en) * | 1932-08-29 | 1933-06-16 | Variable pitch of air and marine propellers | |
| EP0706937A1 (en) * | 1994-10-13 | 1996-04-17 | Eurocopter France | Device to control the pitch of the blades of an helicopter rotor |
| RU2290345C2 (en) * | 2004-06-07 | 2006-12-27 | Сергей Андреевич Камышников | Aircraft lifting propeller with adjustable blades |
| CN204383742U (en) * | 2015-01-10 | 2015-06-10 | 傅春明 | A kind of screw propeller |
| CN205044943U (en) * | 2015-09-30 | 2016-02-24 | 重庆市彭水县东征五金经营部 | Propeller blades rotary device |
-
2015
- 2015-09-30 CN CN201510634897.8A patent/CN106553752A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR42239E (en) * | 1932-08-29 | 1933-06-16 | Variable pitch of air and marine propellers | |
| EP0706937A1 (en) * | 1994-10-13 | 1996-04-17 | Eurocopter France | Device to control the pitch of the blades of an helicopter rotor |
| RU2290345C2 (en) * | 2004-06-07 | 2006-12-27 | Сергей Андреевич Камышников | Aircraft lifting propeller with adjustable blades |
| CN204383742U (en) * | 2015-01-10 | 2015-06-10 | 傅春明 | A kind of screw propeller |
| CN205044943U (en) * | 2015-09-30 | 2016-02-24 | 重庆市彭水县东征五金经营部 | Propeller blades rotary device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109533290A (en) * | 2018-11-15 | 2019-03-29 | 中国直升机设计研究所 | A kind of pitch-change-link angle positioning device |
| CN109533290B (en) * | 2018-11-15 | 2020-11-24 | 中国直升机设计研究所 | Variable-pitch pull rod angle positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170405 |