CN209553488U - A kind of air speed variable-pitch propeller and aircraft pitch control system - Google Patents
A kind of air speed variable-pitch propeller and aircraft pitch control system Download PDFInfo
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- CN209553488U CN209553488U CN201920167909.4U CN201920167909U CN209553488U CN 209553488 U CN209553488 U CN 209553488U CN 201920167909 U CN201920167909 U CN 201920167909U CN 209553488 U CN209553488 U CN 209553488U
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Abstract
The utility model discloses a kind of air speed variable-pitch propeller and aircraft pitch control systems, the air speed variable-pitch propeller includes pitot meter, controller, driver and variable-pitch propeller, the output end of the pitot meter is connect with the input terminal of institute's controller, the variable-pitch propeller can pass through electronic change pitch, the aircraft flight velocity information that the pitot meter will test is transmitted to the controller, and the controller adjusts the pitch of variable-pitch propeller according to airspeed information.The system includes power module, steering engine and the upper air speed variable-pitch propeller.The utility model passes through pitot meter real-time measurement aircraft flight speed, controller calculates accurate pitch according to flying speed, to ensure that high zero degree and high-precision, therefore regardless of aircraft flight speed be it is how many, the pitch of variable-pitch propeller can be matched accurately.
Description
Technical field
The utility model relates to properller fields, more particularly, to a kind of air speed variable-pitch propeller and aircraft pitch control
System processed.
Background technique
The propeller of fixed wing aircraft is divided into two class of spacing and displacement, and constant pitch airscrew pitch is fixed, suitable low speed
Pitch be difficult to adapt to high speed (low efficiency), conversely, being suitble to the pitch of high speed to be difficult to adapt to low speed (low efficiency), so spacing
Propeller can only be higher in selected velocity interval internal efficiency, lower in other velocity efficiencies, and variable-pitch propeller can change
Airscrewpiston, so that propeller has greater efficiency in friction speed.
Existing technology mainly carries out displacement by two schemes, the first is revolving speed of the control system according to engine
Calculate analyzing and obtain suitable screw pitch, then Propeller variable pitch is realized by driving device, so that propeller is not
It is higher with velocity efficiency.Second is that adaptive displacement is realized by the restoring force of propeller pulling force and spring.The first side
Case is to realize that the foundation of displacement is the revolving speed of engine, and the change of engine speed has certain hysteresis quality, therefore propeller
Pitch variation can also generate hysteresis quality, cause sensitivity low；Second scheme is pure to realize displacement, the amount of change by mechanical structure
There are uncertainties, therefore its precision is relatively low.
Utility model content
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to provide a kind of non-delay, air speed variable-pitch propeller.
For this purpose, a second object of the present invention is to provide a kind of aircraft pitch control systems.
The technical scheme adopted by the invention is that:
A kind of air speed variable-pitch propeller, comprising: pitot meter, controller, driver and variable-pitch propeller, the pitot meter
Output end connect with the input terminal of institute controller, the variable-pitch propeller can be by electronic change pitch, with pitch control
The output end of input terminal processed, the controller is connect by driver with the pitch control input terminal of the variable-pitch propeller, institute
It states pitot meter and will test airspeed information and be transmitted to the controller, the controller adjusts displacement according to airspeed information
The pitch of propeller.
Further, the model 4525DO of the pitot meter.
Further, the model STM32F103CBT6 of the controller.
The utility model additionally provides a kind of aircraft pitch control system comprising power module, steering engine and above-mentioned
Air speed variable-pitch propeller, the output end of the power module respectively with the input terminal of the steering engine and the air speed variable-pitch propeller
Input terminal connection.
Further, the power module includes battery, voltage stabilizing chip and 3.3V conversion chip, the output end of the battery
It is connect respectively with the input terminal of the input terminal of the voltage stabilizing chip and 3.3V conversion chip, the output end of the voltage stabilizing chip and institute
The input terminal connection of steering engine is stated, the output end of the 3.3V conversion chip is connect with the input terminal of the air speed variable-pitch propeller.
The beneficial effects of the utility model are:
The utility model is calculated accurately by pitot meter real-time measurement aircraft flight speed, controller according to flying speed
Pitch, to ensure that high zero degree and high-precision, therefore regardless of aircraft flight speed is how many, the pitch of variable-pitch propeller
It can accurately be matched.
Detailed description of the invention
Fig. 1 is a kind of module diagram of air speed variable-pitch propeller in the utility model；
Fig. 2 is a kind of circuit diagram of aircraft pitch control system of the utility model.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
As shown in Figure 1, it illustrates a kind of air speed variable-pitch propellers, comprising: pitot meter, controller, driver and change
Away from propeller, the output end of the pitot meter is connect with the input terminal of institute's controller, and the variable-pitch propeller can be changed by electronic
Feather, with pitch control input terminal, the output end of the controller passes through the paddle of driver and the variable-pitch propeller
Connected away from control signal, the pitot meter will test airspeed information and be transmitted to the controller, the controller according to
The pitch of airspeed information adjusting variable-pitch propeller.By pitot meter real-time measurement aircraft flight speed, controller is according to winged
Scanning frequency degree calculates accurate pitch, to ensure that high zero degree and high-precision, therefore regardless of aircraft flight speed be it is how many,
The pitch of variable-pitch propeller can be matched accurately.
It is further used as preferred embodiment, the power module includes battery, voltage stabilizing chip and 3.3V conversion core
Piece, the output end of the battery is connect with the input terminal of the input terminal of the voltage stabilizing chip and 3.3V conversion chip respectively, described
The output end of voltage stabilizing chip is connect with the input terminal of the steering engine, the output end of the 3.3V conversion chip and the air speed displacement
The input terminal of propeller connects.
The utility model additionally provides a kind of aircraft pitch control system comprising power module, steering engine and above-mentioned
Air speed variable-pitch propeller, the output end of the power module respectively with the input terminal of the steering engine and the air speed variable-pitch propeller
Input terminal connection.Awing, aircraft flight speed increases, and after pitot meter detection aircraft flight speed arrives, which is passed
Controller is passed, the pitch of controller control driver driving variable-pitch propeller becomes smaller；Aircraft flight speed reduces, pitot meter inspection
After measuring, controller is passed it to, the pitch of controller control driver driving variable-pitch propeller becomes larger.Pitot meter is real
When survey aircraft flying speed, controller calculates accurate pitch according to flying speed, to ensure that high zero degree and high
Precision.Therefore regardless of aircraft flight speed be it is how many, the pitch of variable-pitch propeller can be matched accurately.
As shown in Fig. 2, the system includes battery JP1, pressure stabilizing it illustrates the circuit diagram of aircraft pitch control system
Chip U1 and 3.3V conversion chip U3, steering engine P1, pitot meter U2, controller U4, driver P2 and variable-pitch propeller, wherein
The model 4525DO, the model STM32F103CBT6 of the controller U4 of the pitot meter U2.Wherein pitot meter U2
SDA foot, SCL foot are connect with 22 feet of controller U4,21 feet respectively.2 feet of driver P2,3 feet respectively with controller U4 34
Foot, the connection of 37 feet, voltage stabilizing chip U1 export 5V power supply and power to steering engine P1, and 3.3V conversion chip U3 exports 3.3V power supply to control
Device U4, pitot meter U2, driver P2 power supply.2 feet of steering engine P1 are connect with 17 feet of controller U4.Driver P2 becomes for driving
Change pitch away from propeller.
It is to be illustrated to the preferable implementation of the utility model, but the invention is not limited to the reality above
Example is applied, those skilled in the art can also make various equivalent variations without departing from the spirit of the present invention
Or replacement, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (5)
1. a kind of air speed variable-pitch propeller characterized by comprising pitot meter, controller, driver and variable-pitch propeller,
The output end of the pitot meter is connect with the input terminal of institute's controller, the variable-pitch propeller can by electronic change pitch,
With pitch control input terminal, the output end of the controller is inputted by the pitch control of driver and the variable-pitch propeller
End connection, the pitot meter will test airspeed information and be transmitted to the controller, and the controller is believed according to flying speed
Breath adjusts the pitch of variable-pitch propeller.
2. air speed variable-pitch propeller according to claim 1, which is characterized in that the model 4525DO of the pitot meter.
3. air speed variable-pitch propeller according to claim 1, which is characterized in that the model of the controller
STM32F103CBT6。
4. a kind of aircraft pitch control system, which is characterized in that it includes power module, steering engine and such as claims 1 to 3 is appointed
Air speed variable-pitch propeller described in one, the output end of the power module respectively with the input terminal of the steering engine and the air speed
The input terminal of variable-pitch propeller connects.
5. aircraft pitch control system according to claim 4, which is characterized in that the power module includes battery, steady
Chip and 3.3V conversion chip are pressed, the output end of the battery converts core with the input terminal of the voltage stabilizing chip and 3.3V respectively
The input terminal of piece connects, and the output end of the voltage stabilizing chip is connect with the input terminal of the steering engine, the 3.3V conversion chip
Output end is connect with the input terminal of the air speed variable-pitch propeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920167909.4U CN209553488U (en) | 2019-01-29 | 2019-01-29 | A kind of air speed variable-pitch propeller and aircraft pitch control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920167909.4U CN209553488U (en) | 2019-01-29 | 2019-01-29 | A kind of air speed variable-pitch propeller and aircraft pitch control system |
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| Publication Number | Publication Date |
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| CN209553488U true CN209553488U (en) | 2019-10-29 |
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| CN201920167909.4U Active CN209553488U (en) | 2019-01-29 | 2019-01-29 | A kind of air speed variable-pitch propeller and aircraft pitch control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946314A (en) * | 2019-11-26 | 2021-06-11 | 上海峰飞航空科技有限公司 | Unmanned vehicles and airspeed meter thereof |
| CN114348250A (en) * | 2022-01-12 | 2022-04-15 | 广东汇天航空航天科技有限公司 | Transverse double-rotor aircraft, flight control method thereof and electronic equipment |
| CN114379770A (en) * | 2022-01-21 | 2022-04-22 | 夏青元 | Unmanned aerial vehicle electric constant speed variable pitch propeller rotating speed and propeller pitch automatic controller |
-
2019
- 2019-01-29 CN CN201920167909.4U patent/CN209553488U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946314A (en) * | 2019-11-26 | 2021-06-11 | 上海峰飞航空科技有限公司 | Unmanned vehicles and airspeed meter thereof |
| CN114348250A (en) * | 2022-01-12 | 2022-04-15 | 广东汇天航空航天科技有限公司 | Transverse double-rotor aircraft, flight control method thereof and electronic equipment |
| CN114379770A (en) * | 2022-01-21 | 2022-04-22 | 夏青元 | Unmanned aerial vehicle electric constant speed variable pitch propeller rotating speed and propeller pitch automatic controller |
| CN114379770B (en) * | 2022-01-21 | 2024-05-14 | 夏青元 | Unmanned aerial vehicle motor constant speed variable pitch screw rotational speed and pitch automatic control ware |
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