CN112455660A - Power turbine adjusting component of propeller speed regulator - Google Patents
Power turbine adjusting component of propeller speed regulator Download PDFInfo
- Publication number
- CN112455660A CN112455660A CN202011316001.9A CN202011316001A CN112455660A CN 112455660 A CN112455660 A CN 112455660A CN 202011316001 A CN202011316001 A CN 202011316001A CN 112455660 A CN112455660 A CN 112455660A
- Authority
- CN
- China
- Prior art keywords
- baffle
- shifting fork
- assembly
- fixed
- side wall
- 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.)
- Pending
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- 238000002347 injection Methods 0.000 claims abstract description 3
- 239000007924 injection Substances 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C19/00—Aircraft control not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses a power turbine adjusting assembly of a propeller speed regulator, wherein a support rod and shifting fork assembly comprises a balancing weight, springs I and II, a shifting fork, a small wheel and a support rod; one end of the shifting fork is fixed with a balancing weight, the other end of the shifting fork is a U-shaped fork, and the shifting fork is hinged on the support rod; the small wheel is arranged in a U-shaped groove of the shifting fork, and a pin which is assembled in an inner hole of the small wheel in a clearance mode is fixed on the U-shaped end wall; the nozzle is fixed in a mounting hole extending out of the side wall of the lower end of the speed regulator shell; the baffle plate support assembly comprises a baffle plate and a spring III fixed on the side wall of the baffle plate, one side wall of the baffle plate seals the nozzle in a normal state, and the small wheel is abutted against the side wall of the other end of the baffle plate; the U-shaped groove at the lower end of the supporting rod 11 is inserted on the reset handle assembly; when the valve core valve cap rises or the reset handle assembly acts, the balancing weight presses the baffle of the baffle support assembly down, and the nozzle is opened for air injection. The invention has the function of propeller overspeed protection and has the auxiliary functions of beta control and reverse propeller.
Description
Technical Field
The invention relates to a power turbine adjusting assembly of a propeller speed regulator.
Background
The existing propeller speed regulator has no propeller overspeed protection function, and when the propeller overspeed reaches a certain value, particularly in the process from positive propeller to negative propeller, the propeller is easy to fly and rotate, so that an accident happens to an airplane. In order to ensure the use safety of the airplane and prevent the propeller from flying, a propeller control system is provided with a highest rotating speed limiting mechanism, some speed limiting mechanisms are contained in an engine or a propeller structure, and sometimes, because the space structures of the engine and the propeller are limited or the requirements of functional modularization are met, the speed limiting function can be separated out and designed as an independent product. The existing speed limiter is either electric-controlled or hydraulic, the structure is simple, the speed-limiting rotating speed is single, the response is slow, especially in a reverse-oar state, the required working rotating speed of a propeller is lower than that of a forward oar, if the propeller exceeds the speed, the speed limiter cannot respond in time because the working point of the speed limiter is not reached, and once a fault occurs, the propeller cannot be prevented from over-rotating in time, so that an airplane accident is caused. In order to ensure that the airplane is used more safely and reliably, a more reliable overspeed protection function is urgently needed to be added.
Disclosure of Invention
The present invention is directed to solving the above problems of the prior art and providing a power turbine governor assembly for a propeller governor having a governor overspeed protection function and auxiliary functions of beta-steering and counter-feathering.
In order to achieve the purpose, the technical solution of the invention is as follows: a power turbine regulating assembly of a propeller speed regulator comprises a support rod shifting fork assembly, a baffle plate support assembly, a blocking cover and a nozzle, wherein the support rod shifting fork assembly, the baffle plate support assembly, the blocking cover and the nozzle are arranged in a speed regulator shell; the support rod and shifting fork assembly comprises a balancing weight, springs I and II, a shifting fork, a small wheel and a support rod; one end of the shifting fork is fixed with a balancing weight, the other end of the shifting fork is a U-shaped fork matched with a shell cavity for installing the valve core and valve cap assembly, and two ends of the U-shaped fork are respectively fixed with a pin; when the valve core and bonnet assembly is used, the lower end of the pin is abutted to the upper end wall of the valve core and bonnet assembly valve bonnet; one end of the shifting fork close to the balancing weight penetrates through a through hole of the supporting rod, and the shifting fork is hinged on the supporting rod through a needle bearing which is assembled in the inner hole in an interference manner and a pin of which two ends are assembled on two opposite walls of the through hole of the supporting rod in an interference manner; the lower end of a shifting fork arranged in the through hole of the support rod is U-shaped, a small wheel is arranged in a U-shaped groove of the shifting fork, and a pin which is assembled in an inner hole of the small wheel in a clearance mode is fixed on the U-shaped end wall; a spring II is fixed on the upper end face of the supporting rod, a U-shaped groove connected with the reset handle assembly is formed in the lower end face of the supporting rod, and a spring I is fixed on the upper end face of the shifting fork; the nozzle is fixed in a mounting hole extending out of the side wall of the lower end of the speed regulator shell, and the outer end of the nozzle is provided with a plug cover; the baffle support assembly comprises a baffle and a spring III fixed on the side wall of the baffle, one end of the baffle is rotatably arranged in an installation shell extending out of the side wall of the lower end of the speed regulator shell, the other end of the baffle is abutted to the lower end of the balancing weight, a nozzle is sealed on one side wall of the baffle in a normal state, and a small wheel is abutted to the side wall of the other end of the baffle; the U-shaped groove at the lower end of the supporting rod is inserted on the reset handle component; when the valve core valve cap rises or the reset handle assembly acts, the balancing weight presses the baffle of the baffle support assembly down, and the nozzle is opened for air injection.
Further preferably, the structure that one end of the baffle plate support assembly is rotatably arranged in a mounting shell protruding out of the side wall of the lower end of the speed regulator shell is as follows: the bearing is assembled at the root of the supporting shaft of the supporting seat in a clearance mode, the baffle is assembled on the bearing in a clearance mode, and the supporting shaft is sleeved with a spring IV through a gasket; and integrally pressing the support seat, the bearing and the spring IV into the inner hole of the mounting shell.
When the speed regulator is installed, after the speed regulator is overspeed to a certain value, the power turbine regulating assembly is acted, the valve core and valve cap assembly is lifted to a certain degree, the shifting fork is pushed to rotate, the counter weight presses the baffle of the baffle support assembly to open the nozzle, and the pressure on one side in the signal conversion device is reduced to give a signal to the fuel oil regulator, so that the oil supply amount to the engine is reduced, the power of the engine is reduced, the rotating speed of the propeller is also reduced to a required range, and the propeller is prevented from flying. When the propeller is operated and reversed, the reset handle acts, the supporting rod moves downwards, the counterweight block presses the baffle plate of the baffle plate support assembly to open the nozzle, the pressure at one side in the signal conversion device is reduced, a signal is sent to the fuel regulator, the fuel supply quantity to the engine is reduced, the power of the engine is reduced, the underspeed condition of the propeller occurs, and the propeller moves towards the direction of the reverse propeller.
The installation of the invention ensures that the speed regulator has the function of protecting the overspeed of the propeller, thus ensuring the work of the propeller to be more reliable and the use of the airplane to be safer and more reliable. The invention also has the auxiliary functions of beta manipulation and reverse paddle.
Drawings
FIG. 1 is a top view of the mounting structure of the present invention;
FIG. 2 is a cross-sectional view AA in FIG. 1;
FIG. 3 is a schematic structural view of a strut fork assembly of the present invention;
FIG. 4 is a front view of the baffle bracket assembly of the present invention;
FIG. 5 is a bottom view of the baffle bracket assembly of the present invention;
fig. 6 is a BB cross-sectional view of fig. 1.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1 to 6, the present embodiment includes a strut fork assembly, a barrier seat assembly, a closure cap 2, and a nozzle 5 installed in a governor housing 23. The support rod shifting fork assembly comprises a balancing weight 16, springs I19 and II 18, a shifting fork 20, a small wheel 13 and a support rod 11. One end of the shifting fork 20 is fixed with a balancing weight 16 by an elastic cylindrical pin 15, the other end is a U-shaped fork matched with a cavity of a shell 23 for installing the valve core and valve cap assembly, and two ends of the U-shaped fork are respectively fixed with a pin 21; in use, the lower end of the pin 21 abuts against the upper end wall of the bonnet of the cartridge bonnet assembly. One end of the shifting fork 20 close to the balancing weight 16 penetrates through the through hole of the support rod 11, and the shifting fork is hinged on the support rod 11 through a needle bearing 14 which is in interference fit in the inner hole of the shifting fork and a pin 17 of which two ends are in interference fit on two opposite walls of the through hole of the support rod 11. The lower end of a shifting fork 20 arranged in the through hole of the support rod 11 is U-shaped, a small wheel 13 is arranged in the U-shaped groove of the shifting fork 20, and a pin 12 which is assembled in the inner hole of the small wheel in a clearance mode is fixed on the U-shaped end wall. A spring II 18 is fixed on the upper end face of the supporting rod 11, a U-shaped groove 22 connected with a reset handle assembly is formed in the lower end face of the supporting rod, and a spring I19 is fixed on the upper end face of the shifting fork 20. The nozzle 5 is fixed in a mounting hole extending out of the side wall of the lower end of the speed regulator shell 23, and the outer end of the nozzle 5 is provided with a plug cover 2. The baffle support assembly comprises a baffle 6 and a spring III 4 fixed on the side wall of the baffle, one end of the baffle 6 is rotatably installed in an installation shell extending out of the side wall of the lower end of the speed regulator shell 23, the other end of the baffle is connected to the lower end of the balancing weight 16 in a propping mode, the nozzle 5 is sealed on one side wall of the baffle 6 in a normal state, and the small wheel 13 is connected to the side wall of the other end of the baffle 6 in a propping mode. The U-shaped groove at the lower end of the supporting rod 11 is inserted on the reset handle component. When the valve core valve cap rises, the balancing weight 16 presses the baffle 6 of the baffle support assembly downwards, and the nozzle 5 is opened to spray air. Preferably, the structure that one end of the baffle 6 of the baffle seat assembly is rotatably arranged in a mounting shell protruding out of the side wall of the lower end of the speed regulator shell 23 is as follows: the bearing 8 is assembled at the root of the supporting shaft of the supporting seat 7 in a clearance mode, the baffle 6 is assembled on the bearing 8 in a clearance mode, and the supporting shaft is sleeved with a spring IV 10 through a gasket 9. And integrally pressing the support seat, the bearing 8 and the spring IV 10 in the inner hole of the mounting shell. 1 and 3 are sealing rings.
There are, of course, many other embodiments of the invention and modifications and variations of this invention that will be obvious to those skilled in the art may be made without departing from the spirit and scope of the invention, but it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention.
Claims (2)
1. A propeller governor power turbine adjustment assembly characterized in that: the device comprises a support rod shifting fork assembly, a baffle plate support assembly, a blocking cover and a nozzle which are arranged in a speed regulator shell; the support rod and shifting fork assembly comprises a balancing weight, springs I and II, a shifting fork, a small wheel and a support rod; one end of the shifting fork is fixed with a balancing weight, the other end of the shifting fork is a U-shaped fork matched with a shell cavity for installing the valve core and valve cap assembly, and two ends of the U-shaped fork are respectively fixed with a pin; when the valve core and bonnet assembly is used, the lower end of the pin is abutted to the upper end wall of the valve core and bonnet assembly valve bonnet; one end of the shifting fork close to the balancing weight penetrates through a through hole of the supporting rod, and the shifting fork is hinged on the supporting rod through a needle bearing which is assembled in the inner hole in an interference manner and a pin of which two ends are assembled on two opposite walls of the through hole of the supporting rod in an interference manner; the lower end of a shifting fork arranged in the through hole of the support rod is U-shaped, a small wheel is arranged in a U-shaped groove of the shifting fork, and a pin which is assembled in an inner hole of the small wheel in a clearance mode is fixed on the U-shaped end wall; a spring II is fixed on the upper end face of the supporting rod, a U-shaped groove connected with the reset handle assembly is formed in the lower end face of the supporting rod, and a spring I is fixed on the upper end face of the shifting fork; the nozzle is fixed in a mounting hole extending out of the side wall of the lower end of the speed regulator shell, and the outer end of the nozzle is provided with a plug cover; the baffle support assembly comprises a baffle and a spring III fixed on the side wall of the baffle, one end of the baffle is rotatably arranged in an installation shell extending out of the side wall of the lower end of the speed regulator shell, the other end of the baffle is abutted to the lower end of the balancing weight, a nozzle is sealed on one side wall of the baffle in a normal state, and a small wheel is abutted to the side wall of the other end of the baffle; the U-shaped groove at the lower end of the supporting rod is inserted on the reset handle component; when the valve core valve cap rises or the reset handle assembly acts, the balancing weight presses the baffle of the baffle support assembly down, and the nozzle is opened for air injection.
2. The propeller governor power turbine adjustment assembly of claim 1, wherein: baffle support subassembly's baffle one end is rotatably installed and is being the structure in the installation shell that stretches out on the lower extreme lateral wall of speed regulator casing: the bearing is assembled at the root of the supporting shaft of the supporting seat in a clearance mode, the baffle is assembled on the bearing in an interference mode, and the supporting shaft is sleeved with a spring IV through a gasket; and integrally pressing the support seat, the bearing and the spring IV into the inner hole of the mounting shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011316001.9A CN112455660A (en) | 2020-11-22 | 2020-11-22 | Power turbine adjusting component of propeller speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011316001.9A CN112455660A (en) | 2020-11-22 | 2020-11-22 | Power turbine adjusting component of propeller speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112455660A true CN112455660A (en) | 2021-03-09 |
Family
ID=74798172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011316001.9A Pending CN112455660A (en) | 2020-11-22 | 2020-11-22 | Power turbine adjusting component of propeller speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112455660A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2344730A1 (en) * | 2000-04-26 | 2001-10-26 | Honda Giken Kogyo Kabushiki Kaisha | Four wheeled vehicle for traveling on irregular road |
| WO2007115465A1 (en) * | 2006-04-07 | 2007-10-18 | Qin Zhao | A novel helicopter |
| CN104065236A (en) * | 2013-03-22 | 2014-09-24 | 林英楠 | Permanent magnetic speed regulation, brake or load apparatus capable of stepless adjustment of magnetic field intensity |
| US10315747B1 (en) * | 2016-11-09 | 2019-06-11 | Brunswick Corporation | Outboard motors having transmissions with laterally offset input and output driveshafts |
| CN214325358U (en) * | 2020-11-22 | 2021-10-01 | 惠阳航空螺旋桨有限责任公司 | Power turbine adjusting component of propeller speed regulator |
-
2020
- 2020-11-22 CN CN202011316001.9A patent/CN112455660A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2344730A1 (en) * | 2000-04-26 | 2001-10-26 | Honda Giken Kogyo Kabushiki Kaisha | Four wheeled vehicle for traveling on irregular road |
| WO2007115465A1 (en) * | 2006-04-07 | 2007-10-18 | Qin Zhao | A novel helicopter |
| CN104065236A (en) * | 2013-03-22 | 2014-09-24 | 林英楠 | Permanent magnetic speed regulation, brake or load apparatus capable of stepless adjustment of magnetic field intensity |
| US10315747B1 (en) * | 2016-11-09 | 2019-06-11 | Brunswick Corporation | Outboard motors having transmissions with laterally offset input and output driveshafts |
| CN214325358U (en) * | 2020-11-22 | 2021-10-01 | 惠阳航空螺旋桨有限责任公司 | Power turbine adjusting component of propeller speed regulator |
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