CN109606648A - A kind of properller pitch-changing mechanism - Google Patents
A kind of properller pitch-changing mechanism Download PDFInfo
- Publication number
- CN109606648A CN109606648A CN201811521861.9A CN201811521861A CN109606648A CN 109606648 A CN109606648 A CN 109606648A CN 201811521861 A CN201811521861 A CN 201811521861A CN 109606648 A CN109606648 A CN 109606648A
- Authority
- CN
- China
- Prior art keywords
- propeller
- motor
- piston
- control module
- pressure pump
- 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.)
- Granted
Links
- 239000000523 sample Substances 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 239000002828 fuel tank Substances 0.000 claims abstract description 11
- 239000010687 lubricating oil Substances 0.000 claims abstract description 9
- -1 high-pressure pump Substances 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/38—Blade pitch-changing mechanisms fluid, e.g. hydraulic
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Wind Motors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention belongs to Design of Propeller technologies, are related to a kind of properller pitch-changing mechanism.The present invention includes revolution speed of propeller control module, motor, fuel tank, high-pressure pump, conductor, travel switch, pressurized strut, piston, speed probe；The revolution speed of propeller control module, motor, fuel tank, high-pressure pump, conductor, travel switch, pressurized strut, piston, speed probe are installed on propeller；The motor is mounted on high-pressure pump, and lubricating oil is extracted from the fuel tank in propeller hub, and motor driven high-pressure pump generates high pressure lubricating oil, and the piston in pressurized strut is driven to move along propeller axis direction；The travel switch is used to indicate whether piston reaches feathering angle in away from restraint angle；The revolution speed of propeller control module is used to receive the signal of speed probe, controls the on-off of motor, realizes the control to blade angle.
Description
Technical field
The invention belongs to Design of Propeller technologies, are related to a kind of properller pitch-changing mechanism.
Background technique
At present the country variable-pitch propeller, usually using hydraulic variable away from, using hydraulic variable away from the advantages of be manipulation control
System is convenient, realizes large range of stepless speed regulation in the process of running, but since energy demand is by turning in transmission process
It changes, the defects of there are volumetric losses；The problem of liquid leakage, is more serious；Fluid pressure line is complex.Therefore, improve propeller
Pitch-changing mechanism is just particularly important, though when front propeller displacement using hydraulic variable away from it is simply by lubricating oil pressure
Change the blade angle of propeller, acted on by the pressure of lubricating oil so that propeller become larger away from or become smaller away from.It therefore is promotion spiral shell
The control precision of paddle is revolved, propeller Control platform is improved, electronic hydrostatic SERVO CONTROL is turned to by hydraulic control displacement in propeller
Displacement mode, to realize the electronically controlled target of propeller.In current pitch-changing mechanism, transmission process liquid leakage can shadow
The precision for arriving displacement is rung, and also suffers from being affected for environment temperature, so reducing energy loss, liquid in transmission process
Body leakage rate and fluid pressure line are just particularly important.
Summary of the invention
The object of the present invention is to provide one kind can reduce in displacement transmission process the mechanism for losing, leaking, the mechanism knot
Structure is simple, high reliablity, and energy loss, liquid leakage, to solve energy loss in existing propeller can be greatly reduced
Greatly, the liquid leakage mostly lengthy and jumbled problem with fluid pressure line,
For the purpose for realizing Propeller variable pitch, the technical scheme is that a kind of properller pitch-changing mechanism, including
Revolution speed of propeller control module, motor, fuel tank, high-pressure pump, conductor, travel switch, pressurized strut, piston, speed probe；Institute
State revolution speed of propeller control module, motor, fuel tank, high-pressure pump, conductor, travel switch, pressurized strut, piston, speed probe
It is installed on propeller；The motor is mounted on high-pressure pump, and lubricating oil, motor driven high pressure are extracted from the fuel tank in propeller hub
Pump generates high pressure lubricating oil, and the piston in pressurized strut is driven to move along propeller axis direction；The travel switch is used to indicate work
Whether plug reaches feathering angle in away from restraint angle；The revolution speed of propeller control module is used to receive the letter of speed probe
Number, the on-off of motor is controlled, realizes the control to blade angle；It, will be on engine by conductor in engine working process
Fax pass revolution speed of propeller control module.
The beneficial effects of the present invention are: the present invention passes through setting revolution speed of propeller control module, speed probe, pressurized strut
Equal parts, can simplify the control system of propeller, reduce the overall weight of propeller, realize the electrical adjustment control of propeller
System, the program can adapt to various types of engines.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of properller pitch-changing mechanism of the present invention；
Wherein, 1-revolution speed of propeller control module, 2-motors, 3-fuel tanks, 4-high-pressure pumps, 5-conductors, 6-rows
Cheng Kaiguan, 7-pressurized struts, 8-pistons, 9-blades, 10-speed probes, 11-engines.
Specific embodiment
The following further describes the specific embodiments of the present invention with reference to the drawings.
The present invention improves conventional hydraulic pitch-changing mechanism for electronic hydrostatic pitch-changing mechanism, and this pitch-changing mechanism is to pass through control
Motor drives high pressure pump work, controls the variation of propeller blade angle with piston by pressurized strut.
Pressurized strut and piston are hydraulic system, it is believed that are a part of pump control system, revolution speed of propeller control module
The variable output of pump is realized by controlling the revolving speed of motor.When propeller blade angle is widely varied, change of the invention
The short-time overload that spacing mechanism can use motor is required using to meet the peak change in load behavior.Due to using electricity
Machine, so the power supply of motor needs external offer, the electric current that motor needs, which is given to motor, by conductor makes it have the ability to be
High-pressure pump provides power.The revolution speed of propeller control module and sensor of certain outside motor are also required to the supply of voltage, this is just
Need conductor that component voltage is given to the position of needs.Be supplied to pressurized strut high pressure fuel source is high-pressure pump, therefore in propeller
Paddle shell one fuel tank of intracavitary placement, which provides enough liquid for it, makes pressurized strut therefrom away from restraint angle position to feathering angle position.
As shown in Figure 1, the power supply on engine 11 is passed to propeller by conductor 5 during propeller works
Rotational speed control module 1, while revolution speed of propeller signal is passed to revolution speed of propeller control module 1 by speed probe 10, is used for
Control the on-off of motor 2.2 working voltage of motor pump 4 provides high pressure oil, is moved axially by pressurized strut 7 with piston 8, in turn
9 angle changing of blade is controlled, displacement effect is reached.High-pressure pump 4 extracts lubricating oil from fuel tank 3.Travel switch 6 in pressurized strut 7
For feathering angle, the instruction point away from restraint angle, the closure cut-off signal of travel switch 6 are transmitted to revolution speed of propeller control mould in
Block 1 controls the closing of motor 2, guarantee feathering angle and in away from restraint angle is accurate and the safety of motor 2.
Claims (4)
1. a kind of properller pitch-changing mechanism, it is characterized in that: the mechanism includes revolution speed of propeller control module, motor, oil
Case, high-pressure pump, conductor, travel switch, pressurized strut, piston, speed probe；By control motor, high pressure pump work is driven,
The variation of propeller blade angle is controlled with piston by pressurized strut.
2. properller pitch-changing mechanism according to claim 1, it is characterized in that: the motor is mounted on high-pressure pump,
Lubricating oil is extracted from the fuel tank in propeller hub, motor driven high-pressure pump generates high pressure lubricating oil, drives the piston in pressurized strut along spiral
Paddle axis direction is mobile；The travel switch is used to indicate whether piston reaches feathering angle in away from restraint angle；The spiral shell
Rotation paddle rotational speed control module is used to receive the signal of speed probe, controls the on-off of motor, realizes the control to blade angle；
In engine working process, the fax on engine is passed to revolution speed of propeller control module by conductor.
3. properller pitch-changing mechanism according to claim 2, it is characterized in that: during propeller works, by leading
Electric appliance (5) passes to the power supply on engine (11) revolution speed of propeller control module (1), while speed probe (10) is by spiral shell
Rotation paddle tach signal passes to revolution speed of propeller control module (1), for controlling the on-off of motor (2).Motor (2) working voltage
It pumps (4) and high pressure oil is provided, moved axially by pressurized strut (7) band piston (8), and then control blade (9) angle changing, reach
Displacement effect.
4. properller pitch-changing mechanism according to claim 1, it is characterized in that: the revolution speed of propeller control module,
Motor, fuel tank, high-pressure pump, conductor, travel switch, pressurized strut, piston, speed probe are installed on propeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521861.9A CN109606648B (en) | 2018-12-12 | 2018-12-12 | Aircraft screw pitch-changing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521861.9A CN109606648B (en) | 2018-12-12 | 2018-12-12 | Aircraft screw pitch-changing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109606648A true CN109606648A (en) | 2019-04-12 |
| CN109606648B CN109606648B (en) | 2024-06-18 |
Family
ID=66007235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811521861.9A Active CN109606648B (en) | 2018-12-12 | 2018-12-12 | Aircraft screw pitch-changing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109606648B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB818702A (en) * | 1957-07-19 | 1959-08-19 | Rotol Ltd | Improvements in or relating to hydraulic variable pitch propellers |
| US20030180146A1 (en) * | 2002-03-19 | 2003-09-25 | Arel David V. | Actuation system for a controllable pitch propeller |
| CN102765473A (en) * | 2012-08-13 | 2012-11-07 | 中国南方航空工业(集团)有限公司 | Oil distribution device for propeller variable pitch |
| CN104494811A (en) * | 2014-12-14 | 2015-04-08 | 惠阳航空螺旋桨有限责任公司 | Servo pitch control device for screw propeller |
| CN106500972A (en) * | 2016-09-23 | 2017-03-15 | 武汉船用机械有限责任公司 | A kind of land united test equipment of tuning for Controllable Pitch Propeller |
| CN107941142A (en) * | 2017-12-04 | 2018-04-20 | 惠阳航空螺旋桨有限责任公司 | A kind of propeller blade becomes elongation real-time measurement apparatus |
| CN207875979U (en) * | 2017-12-15 | 2018-09-18 | 惠阳航空螺旋桨有限责任公司 | A kind of narrow spacing lock stop device |
-
2018
- 2018-12-12 CN CN201811521861.9A patent/CN109606648B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB818702A (en) * | 1957-07-19 | 1959-08-19 | Rotol Ltd | Improvements in or relating to hydraulic variable pitch propellers |
| US20030180146A1 (en) * | 2002-03-19 | 2003-09-25 | Arel David V. | Actuation system for a controllable pitch propeller |
| CN102765473A (en) * | 2012-08-13 | 2012-11-07 | 中国南方航空工业(集团)有限公司 | Oil distribution device for propeller variable pitch |
| CN104494811A (en) * | 2014-12-14 | 2015-04-08 | 惠阳航空螺旋桨有限责任公司 | Servo pitch control device for screw propeller |
| CN106500972A (en) * | 2016-09-23 | 2017-03-15 | 武汉船用机械有限责任公司 | A kind of land united test equipment of tuning for Controllable Pitch Propeller |
| CN107941142A (en) * | 2017-12-04 | 2018-04-20 | 惠阳航空螺旋桨有限责任公司 | A kind of propeller blade becomes elongation real-time measurement apparatus |
| CN207875979U (en) * | 2017-12-15 | 2018-09-18 | 惠阳航空螺旋桨有限责任公司 | A kind of narrow spacing lock stop device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109606648B (en) | 2024-06-18 |
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