CN212202285U - Adjustable jet-tail pipe of aeroengine - Google Patents
Adjustable jet-tail pipe of aeroengine Download PDFInfo
- Publication number
- CN212202285U CN212202285U CN202020938278.4U CN202020938278U CN212202285U CN 212202285 U CN212202285 U CN 212202285U CN 202020938278 U CN202020938278 U CN 202020938278U CN 212202285 U CN212202285 U CN 212202285U
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- traction rope
- adjusting sheet
- adjusting
- ring
- casing
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Abstract
The utility model relates to an adjustable tail nozzle of an aircraft engine, which comprises a casing, a regulating blade convergence motor, a traction rope, a regulating blade expansion reed, a regulating blade hinged support, a regulating blade tail end connecting piece, a traction rope mounting ring and a fixed end; the adjusting pieces are connected through adjusting piece tail end connecting pieces, the adjusting pieces are connected with the casing through adjusting piece hinged supports, adjusting piece expanding reeds are respectively connected with the casing and the adjusting pieces, the adjusting piece convergence motor and the fixed ends are installed on the casing, one end of the traction rope is connected with the adjusting piece convergence motor, and the other end of the traction rope sequentially penetrates through the traction rope installation ring to be connected with the fixed ends; the pull-cord mounting ring includes a start ring, a stop ring, and other mounting rings. The utility model discloses the adjustable jet nozzle of aeroengine shortens and extends the effective length of haulage rope through adjustment sheet convergence motor, changes jet nozzle bore size with the elastic force combined action of adjustment sheet expansion reed, and then adjustment export airflow pressure, has only through a motor drive, and actuating mechanism is few, controls simply, low price's advantage.
Description
The technical field is as follows:
the utility model relates to an adjustable exhaust nozzle of aeroengine belongs to aeroengine technical field.
Background art:
the adjustable jet nozzle of the aircraft engine is one of core components of the aircraft engine. The jet nozzle with adjustable jet orifice is adopted, and the working state of the engine is changed by changing the area of the jet orifice, so that the engine can obtain good performance in various working states. However, the tail nozzle with the adjustable nozzle needs dozens of actuators to cooperate to realize the function, and has the disadvantages of complex structure, high control difficulty, heavy weight and high manufacturing and maintenance cost. There is no jet adjustable jet nozzle that can achieve the convergent and divergent functions of the jet nozzle with fewer components, simpler structure, lighter weight and lower cost.
The utility model has the following contents:
an object of the utility model is to provide an adjustable jet-tail pipe of aeroengine solves the adjustable jet-tail pipe executive structure of present aeroengine many, and control is complicated, problem that the price is expensive.
The utility model discloses an adjustable jet nozzle of an aircraft engine, which comprises a casing, a regulating blade convergence motor, a traction rope, a regulating blade expansion reed, a regulating blade hinged support, a regulating blade tail end connecting piece, a traction rope mounting ring and a fixed end; the adjusting sheets are connected through adjusting sheet tail end connecting pieces, and the adjusting sheet hinge support is connected with the casing through the adjusting sheet hinge support; the adjusting sheet expanding reed is respectively connected with the casing and the adjusting sheet; the regulating sheet convergence motor and the fixed end are arranged on the casing; one end of the traction rope is connected with the adjusting sheet convergence motor, and the other end of the traction rope sequentially penetrates through the traction rope mounting ring to be connected with the fixed end; the pull-cord mounting ring includes a start ring, a stop ring, and other mounting rings.
The adjusting piece is fixedly connected with a traction rope mounting ring, the included angle of the starting ring of the traction rope mounting ring, the included angle of the adjusting piece convergence motor and the axis of the tail nozzle on the radial plane are 60 degrees, the included angle of the ending ring of the traction rope mounting ring, the included angle of the adjusting piece convergence motor and the axis of the tail nozzle on the radial plane are also 60 degrees, and the traction rope mounting ring is spirally arranged relative to the axis of the tail nozzle from the starting ring to the ending ring.
The adjusting sheet expanding reed is of a plane plate spring structure, when the adjusting sheet expanding reed is in a free state, an excircle formed at the tail end of the adjusting sheet is larger than an excircle at the top end, and at the moment, the maximum length of the traction rope is reached; when the expansion reed of the adjusting sheet is in a limit bending state, the excircle of the tail end of the adjusting sheet is reduced to the minimum aperture, and at the moment, the traction rope is wound to the minimum length; when the adjusting sheet expanding reed is bent to the middle state, the excircle of the tail end of the adjusting sheet is equal to the excircle of the top end of the adjusting sheet, and the traction rope is wound to the middle length.
The adjusting sheet hinged support is of a hinge structure, one end of the adjusting sheet hinged support is fixed on the casing, and the other end of the adjusting sheet hinged support is fixed on the adjusting sheet.
Compared with the prior art, the utility model discloses the adjustable jet nozzle of aeroengine shortens and extends the effective length of haulage rope through adjustment sheet convergence motor, and the elastic force combined action who expands the reed with the adjustment sheet changes jet nozzle bore size, and then adjustment outlet airflow pressure has through a motor drive, and actuating mechanism is few, controls simply, low price's advantage.
Description of the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a detailed view of the top structure of the adjusting plate of the present invention;
FIG. 4 is a schematic view of the overall structure of the jet nozzle of the present invention after the caliber thereof is reduced;
FIG. 5 is a top view of the jet nozzle of the present invention after the caliber thereof is reduced;
in the figure: 1. a case; 2. a regulating sheet; 3. a tab convergence motor; 4. a hauling rope; 5. the adjusting sheet expands the reed; 6. a regulating sheet hinged support; 7. a connecting piece for the tail end of the adjusting sheet; 8. a pull rope mounting ring; 9. and a fixed end.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses an adjustable jet nozzle of an aircraft engine, which comprises a casing (1), a regulating blade (2), a regulating blade convergence motor (3), a traction rope (4), a regulating blade expansion reed (5), a regulating blade hinged support (6), a regulating blade tail end connecting piece (7), a traction rope mounting ring (8) and a fixed end (9); the adjusting sheets (2) are connected through an adjusting sheet tail end connecting piece (7), and the device is characterized in that the adjusting sheets (2) are connected with the casing (1) through adjusting sheet hinged supports (6); the adjusting sheet expanding reed (5) is respectively connected with the casing (1) and the adjusting sheet (2); the adjusting sheet convergence motor (3) and the fixed end (9) are arranged on the casing (1); one end of the traction rope (4) is connected with the adjusting sheet convergence motor (3), and the other end of the traction rope sequentially penetrates through the traction rope mounting ring (8) to be connected with the fixed end (9); the hauling rope mounting ring (8) comprises a starting ring (8-1), a stopping ring (8-2) and other mounting rings (8-3).
The adjusting piece (2) is fixedly connected with a hauling rope mounting ring (8), the starting ring (8-1) of the hauling rope mounting ring (8), the adjusting piece convergence motor (3) and the tail nozzle axis form an included angle of 60 degrees in a radial plane, the ending ring (8-2) of the hauling rope mounting ring (8), the adjusting piece convergence motor (3) and the tail nozzle axis form an included angle of 60 degrees in the radial plane, the hauling rope mounting ring (8) is spirally arranged relative to the tail nozzle axis from the starting ring (8-1) to the ending ring (8-2).
The adjusting sheet expanding reed (5) is of a plane plate spring structure, when the adjusting sheet expanding reed (5) is in a free state, an excircle formed at the tail end of the adjusting sheet (2) is larger than an excircle at the top end, and at the moment, the traction rope (4) reaches the maximum length; when the adjusting sheet expanding reed (5) is in a limit bending state, the excircle of the tail end of the adjusting sheet (2) is reduced to the minimum aperture, and the traction rope (4) is wound to the minimum length; the excircle of the tail end of the adjusting sheet (2) is equal to the excircle of the top end of the adjusting sheet expanding reed (5) when the adjusting sheet expanding reed is bent to the middle state, and the traction rope (4) is wound to the middle length.
The adjusting sheet hinged support (6) is of a hinge structure, one end of the adjusting sheet hinged support is fixed on the casing (1), and the other end of the adjusting sheet hinged support is fixed on the adjusting sheet (2).
To sum up, the utility model discloses adjustable jet-tail pipe of aeroengine is around having a haulage rope on the adjustment flap, and the haulage rope can realize the change of jet-tail pipe bore size by adjustment flap convergence motor control, and then adjustment outlet airflow pressure.
In the description of the present invention, the terms "inside", "outside", "upper", "lower", "front", "rear", "top", "bottom", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Claims (4)
1. An adjustable tail nozzle of an aeroengine comprises a casing (1), a regulating blade (2), a regulating blade convergence motor (3), a traction rope (4), a regulating blade expansion reed (5), a regulating blade hinged support (6), a regulating blade tail end connecting piece (7), a traction rope mounting ring (8) and a fixed end (9); the adjusting sheets (2) are connected through an adjusting sheet tail end connecting piece (7), and the device is characterized in that the adjusting sheets (2) are connected with the casing (1) through adjusting sheet hinged supports (6); the adjusting sheet expanding reed (5) is respectively connected with the casing (1) and the adjusting sheet (2); the adjusting sheet convergence motor (3) and the fixed end (9) are arranged on the casing (1); one end of the traction rope (4) is connected with the adjusting sheet convergence motor (3), and the other end of the traction rope sequentially penetrates through the traction rope mounting ring (8) to be connected with the fixed end (9); the hauling rope mounting ring (8) comprises a starting ring (8-1), a stopping ring (8-2) and other mounting rings (8-3).
2. The aero-engine adjustable jet nozzle of claim 1 wherein: the adjusting piece (2) is fixedly connected with a traction rope mounting ring (8), the included angle of the starting ring (8-1) of the traction rope mounting ring (8), the adjusting piece convergence motor (3) and the tail nozzle axis on the radial plane is 60 degrees, the included angle of the ending ring (8-2) of the traction rope mounting ring (8), the included angle of the adjusting piece convergence motor (3) and the tail nozzle axis on the radial plane is also 60 degrees, the traction rope mounting ring (8) is spirally arranged relative to the tail nozzle axis from the starting ring (8-1) to the ending ring (8-2).
3. The aero-engine adjustable jet nozzle of claim 1 wherein: the adjusting sheet expanding reed (5) is of a plane plate spring structure, when the adjusting sheet expanding reed (5) is in a free state, an excircle formed at the tail end of the adjusting sheet (2) is larger than an excircle at the top end, and at the moment, the traction rope (4) reaches the maximum length; when the adjusting sheet expanding reed (5) is in a limit bending state, the excircle of the tail end of the adjusting sheet (2) is reduced to the minimum aperture, and the traction rope (4) is wound to the minimum length; the excircle of the tail end of the adjusting sheet (2) is equal to the excircle of the top end of the adjusting sheet expanding reed (5) when the adjusting sheet expanding reed is bent to the middle state, and the traction rope (4) is wound to the middle length.
4. The aero-engine adjustable jet nozzle of claim 1 wherein: the adjusting sheet hinged support (6) is of a hinge structure, one end of the adjusting sheet hinged support is fixed on the casing (1), and the other end of the adjusting sheet hinged support is fixed on the adjusting sheet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020938278.4U CN212202285U (en) | 2020-05-29 | 2020-05-29 | Adjustable jet-tail pipe of aeroengine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020938278.4U CN212202285U (en) | 2020-05-29 | 2020-05-29 | Adjustable jet-tail pipe of aeroengine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212202285U true CN212202285U (en) | 2020-12-22 |
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ID=73812688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020938278.4U Active CN212202285U (en) | 2020-05-29 | 2020-05-29 | Adjustable jet-tail pipe of aeroengine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212202285U (en) |
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2020
- 2020-05-29 CN CN202020938278.4U patent/CN212202285U/en active Active
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