CN207450223U - Rotary type rotor variable pitch device - Google Patents
Rotary type rotor variable pitch device Download PDFInfo
- Publication number
- CN207450223U CN207450223U CN201721367177.0U CN201721367177U CN207450223U CN 207450223 U CN207450223 U CN 207450223U CN 201721367177 U CN201721367177 U CN 201721367177U CN 207450223 U CN207450223 U CN 207450223U
- Authority
- CN
- China
- Prior art keywords
- propeller hub
- blade
- slot
- tumbler
- sliding slot
- 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 provides a kind of rotary type rotor variable pitch device, and several bending sliding slots are provided with including surrounding（5）Propeller hub, inserted with blade in each propeller hub；The propeller shank is provided with to be caught in by slot in the sliding slot of propeller hub together with the slot of propeller hub equivalent width, blade；The propeller hub bottom is equipped with tumbler, and tumbler includes pedestal and and blade（1）The identical boss of quantity, wherein pedestal are connected with external motive device, and each boss is compressed with a corresponding propeller hub root by elastic device, and power set drive boss to rotate by pedestal, so as to which blade be driven to be moved on the sliding slot of propeller hub.The transmission devices such as connecting rod are greatly reduced in the utility model, add reliability of structure, reduce the resistance brought by section transmission connecting rod, and can be according to the shape of the appropriate adjustment propeller hub of the quantity and displacement of blade requirement and tumbler.
Description
Technical field
The utility model is related to variable pitch device fields, are specifically a kind of rotary type rotor variable pitch device.
Background technology
The variable pitch device of rotor is the important feature for controlling rotor, is divided into feathering control and becomes always away from control.Wherein
Become always away from control be by and meanwhile change the established angle of each blade of rotor and realize the control to rotor output power.Always away from more
It is big, it is necessary to power it is bigger, thrust caused by the air mass flow and air of generation is bigger.Current variable pitch contro l structure is several
All it is linkage, complicated, there is also certain resistances during rotation.To rotor always away from control how be simultaneously attributed to
Change and can steadily control the established angle of each blade, can equally realize by other means.
Utility model content
The utility model provides a kind of rotary type rotor variable pitch device, significantly subtracts to solve problem of the prior art
Lack the transmission devices such as connecting rod, added reliability of structure, reduce the resistance brought by section transmission connecting rod, and can be with
According to the quantity of blade and the shape of the appropriate adjustment propeller hub of displacement requirement and tumbler.
The utility model includes the propeller hub that surrounding is provided with several bending sliding slots, and the shape of sliding slot is by always true away from excursion
Fixed, always big away from excursion, then the shape of sliding slot is more precipitous；Always small away from excursion, then the shape of sliding slot is gentler.
Inserted with blade in each propeller hub；The propeller shank is provided with to be led to together with the slot of propeller hub equivalent width, blade
Slot is crossed to be caught in the sliding slot of propeller hub, slot can obtain it is deeper because will between blade and propeller hub mounting slip device, protect
Demonstrate,prove movement that can be smooth in the curved slot of propeller hub when blade is subject to thrust.
The propeller hub bottom is equipped with tumbler, and tumbler includes pedestal and identical with blade quantity convex
Platform, wherein pedestal are connected with external motive device, and each boss is compressed with a corresponding propeller hub root by elastic device, are protected
Card blade can be pressed on the boss of tumbler always.Power set drive boss to rotate by pedestal, so as to which blade be driven to exist
It is moved on the sliding slot of propeller hub.
Sliding slot on the propeller hub is provided with port in the bottom of propeller hub, to facilitate the installation of blade.Blade passes through port
After being inserted into sliding slot, port is closed by tumbler, ensures that blade is not fallen off.
The utility model advantageous effect is：Using special propeller hub shape and fluting blade, by tumbler from
Inside drive rotor always away from variation, the transmission devices such as connecting rod are greatly reduced in such design.The utility model can basis
The appropriate adjustment propeller hub of quantity and displacement requirement of blade and the shape of tumbler.The design will be more than rotor rotational disk main
Structure is all wrapped up with propeller hub so that rotor structure is more concise and beautiful, adds reliability of structure, and reduce by
The resistance that section transmission connecting rod is brought.
Description of the drawings
Fig. 1 is displacement rotor stereoscopic schematic diagram.
Fig. 2 is fluting propeller shank schematic diagram.
Fig. 3 is fluting propeller hub schematic diagram.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
The utility model stereochemical structure is as shown in Figure 1, be provided with the propeller hub 4 of several bending sliding slots 5 including surrounding（Such as Fig. 3 institutes
Show）, the shape of sliding slot 5 is always big away from excursion by always being determined away from excursion, then the shape of sliding slot 5 is more precipitous；Always away from variation
Scope is small, then the shape of sliding slot 5 is gentler.
Inserted with blade 1 in each propeller hub 4,1 root of blade is provided with the slot of one and 4 equivalent width of propeller hub（Such as
Shown in Fig. 2）, blade 1 is caught in by slot in the sliding slot 5 of propeller hub 4, slot can obtain it is deeper because will be in blade and propeller hub
Between mounting slip device, ensure can be smooth in the curved slot of propeller hub when blade is subject to thrust movement.
4 bottom of propeller hub is equipped with tumbler 3, and tumbler 3 includes pedestal and identical with 1 quantity of blade
Boss, wherein pedestal are connected with external motive device, and each boss is pressed with a corresponding propeller hub root by elastic device 2
Tightly, ensure that blade can be pressed on the boss of tumbler always.Power set drive boss to rotate by pedestal, so as to drive paddle
Leaf 1 moves on the sliding slot of propeller hub 4.
Sliding slot 5 on the propeller hub 4 is provided with port in the bottom of propeller hub, to facilitate the installation of blade.Blade passes through logical
After in mouth insertion sliding slot, port is closed by tumbler 3, ensures that blade is not fallen off.
There are many utility model concrete application approach, and the above is only the preferred embodiment of the utility model, should
It points out, for those skilled in the art, on the premise of the utility model principle is not departed from, can also make
Go out several improvement, these improvement also should be regarded as the scope of protection of the utility model.
Claims (3)
1. a kind of rotary type rotor variable pitch device, it is characterised in that：Several bending sliding slots are provided with including surrounding（5）Propeller hub（4）,
Each propeller hub（4）It is interior inserted with blade（1）；The blade（1）Root is provided with one and propeller hub（4）The slot of equivalent width, paddle
Leaf（1）Propeller hub is caught in by slot（4）Sliding slot（5）In；The propeller hub（4）Bottom is equipped with tumbler（3）, tumbler
（3）Including pedestal and and blade（1）The identical boss of quantity, wherein pedestal are connected with external motive device, each boss with
A corresponding propeller hub root passes through elastic device（2）It compresses, power set drive boss to rotate by pedestal, so as to drive paddle
Leaf（1）In propeller hub（4）Sliding slot on move.
2. rotary type rotor variable pitch device according to claim 1, it is characterised in that：The propeller hub（4）On sliding slot
（5）Port is provided in the bottom of propeller hub, port passes through tumbler（3）Closing.
3. rotary type rotor variable pitch device according to claim 1 or 2, it is characterised in that：The blade（1）Root
Slot and propeller hub（4）Sliding slot（5）Between slide device is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721367177.0U CN207450223U (en) | 2017-10-23 | 2017-10-23 | Rotary type rotor variable pitch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721367177.0U CN207450223U (en) | 2017-10-23 | 2017-10-23 | Rotary type rotor variable pitch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207450223U true CN207450223U (en) | 2018-06-05 |
Family
ID=62281163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721367177.0U Expired - Fee Related CN207450223U (en) | 2017-10-23 | 2017-10-23 | Rotary type rotor variable pitch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207450223U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107719640A (en) * | 2017-10-23 | 2018-02-23 | 南京航空航天大学 | Rotary type rotor variable pitch device |
| WO2019109791A1 (en) * | 2018-11-15 | 2019-06-13 | 中国直升机设计研究所 | Differential variable pitch blade and helicopter rotor system |
| CN110127038A (en) * | 2019-05-27 | 2019-08-16 | 安徽卓尔航空科技有限公司 | A kind of propeller hub of adjustable-piston |
| CN110816812A (en) * | 2019-11-29 | 2020-02-21 | 西安戴森电子技术有限公司 | Unmanned aerial vehicle is with dismantling screw |
-
2017
- 2017-10-23 CN CN201721367177.0U patent/CN207450223U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107719640A (en) * | 2017-10-23 | 2018-02-23 | 南京航空航天大学 | Rotary type rotor variable pitch device |
| CN107719640B (en) * | 2017-10-23 | 2024-04-12 | 南京航空航天大学 | Rotary rotor wing pitch-changing device |
| WO2019109791A1 (en) * | 2018-11-15 | 2019-06-13 | 中国直升机设计研究所 | Differential variable pitch blade and helicopter rotor system |
| CN110127038A (en) * | 2019-05-27 | 2019-08-16 | 安徽卓尔航空科技有限公司 | A kind of propeller hub of adjustable-piston |
| CN110816812A (en) * | 2019-11-29 | 2020-02-21 | 西安戴森电子技术有限公司 | Unmanned aerial vehicle is with dismantling screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20211023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |