CN115009528B - Air pressure protection device of active tilting wing, aircraft and method thereof - Google Patents
Air pressure protection device of active tilting wing, aircraft and method thereof Download PDFInfo
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- CN115009528B CN115009528B CN202210793903.4A CN202210793903A CN115009528B CN 115009528 B CN115009528 B CN 115009528B CN 202210793903 A CN202210793903 A CN 202210793903A CN 115009528 B CN115009528 B CN 115009528B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 18
- 230000002159 abnormal effect Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention discloses an air pressure protection device of an active tilting airfoil, an aircraft and a method thereof, relates to the technical field of aircrafts, solves the problem that the existing active tilting airfoil cannot cope with bad weather, improves emergency capability, and adopts the following specific scheme: including semicircle annular cylinder, be equipped with the connecting rod in the cylinder, cylinder and connecting rod can wind axis relative motion, the connecting rod stretches out from the one end of cylinder, and the other end of cylinder is fixed to be equipped with the solenoid valve that is used for controlling the inside and external break-make of cylinder, the tip fixed that the connecting rod is located the cylinder is equipped with the rubber seal head, the lateral wall of cylinder, the connecting rod stretch out on the one end of cylinder be fixed respectively and be equipped with one and be used for with wing fixed connection's fixed plate.
Description
Technical Field
The invention relates to the technical field of aircrafts, in particular to an air pressure protection device of an active tilting airfoil, an aircraft and a method thereof.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The tilting moment of the active tilting wing is derived from the tension difference generated by the upper and lower surface mounting engines of the wing. Taking one propeller on the upper surface and the lower surface of each of the left wing and the right wing as an example, 4 propellers generate different tensile forces, so that the wing can rotate by taking the tilting shaft as an axis. The structure omits mechanical structures such as a tilting steering engine, a control surface and the like, and can still control the flight of the aircraft.
The inventor finds that the tilting movement of the active tilting airfoil completely depends on the tension difference of the engine, and the engine is required to continuously adjust the rotating speed and the power output, so that the efficiency of the power system is lower, for example, the situation that tilting cannot be controlled when the air encounters bad weather occurs, and the phenomenon that the aircraft is out of control and falls due to abnormal tilting of the airfoil occurs when the air is severe.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide an air pressure protection device of an active tilting wing, an aircraft and a method thereof, wherein the air pressure protection device is arranged between an inner section wing and an outer section wing, so that an air cylinder and a connecting rod can relatively move along with the inner section wing and the outer section wing, the on-off of the air cylinder and the outside is controlled through an electromagnetic valve, the abnormal tilting of the wing is restrained by utilizing the principle of air compression, and the problem that the existing active tilting wing cannot cope with bad weather is solved.
In order to achieve the above object, the present invention is realized by the following technical scheme:
the invention provides an air pressure protection device of an active tilting airfoil, which comprises a semicircular air cylinder, wherein a connecting rod is arranged in the air cylinder, the air cylinder and the connecting rod can move relatively around an axis, the connecting rod extends out of one end of the air cylinder, an electromagnetic valve for controlling the on-off of the inside of the air cylinder and the outside is fixedly arranged at the other end of the air cylinder, a rubber sealing head is fixedly arranged at the end part of the connecting rod positioned in the air cylinder, and a fixing plate for fixedly connecting with the airfoil is fixedly arranged on the side wall of the air cylinder and one end of the connecting rod extending out of the air cylinder respectively.
As a further implementation mode, the fixing plates are divided into a first fixing plate and a second fixing plate, the first fixing plate is fixedly arranged on the side wall of the cylinder, the second fixing plate is fixedly arranged at the end part of the connecting rod extending out of the cylinder, and the first fixing plate and the second fixing plate are oppositely arranged.
As a further implementation manner, the connecting rod is an arc-shaped connecting rod, and the connecting rod and the air cylinder are coaxially arranged.
As a further implementation manner, one end of the air cylinder is open, the other end of the air cylinder is closed, and the electromagnetic valve is arranged at the closed end of the air cylinder.
In a second aspect, the present invention provides an aircraft, using the air pressure protection device of the active tilting wing described in the first aspect, comprising a fuselage and active tilting wings arranged on two sides of the fuselage, wherein the active tilting wing is composed of an inner section wing and an outer section wing which are connected through a tilting shaft, the air pressure protection device is located between the inner section wing and the outer section wing and is rotatably arranged on the tilting shaft, and an air cylinder and a connecting rod can rotate around an axis relatively along with the inner section wing and the outer section wing.
As a further implementation mode, the air cylinder is fixedly connected with the outer section wing through a first fixing plate, and the connecting rod is fixedly connected with the inner section wing through a second fixing plate.
As a further implementation, the cylinder is arranged coaxially with the tilting shaft.
As a further implementation manner, the inner section wing is fixedly arranged on the machine body, and the outer section wing is rotatably arranged on the tilting shaft.
As a further implementation, the aircraft further comprises a control system which is respectively connected with the electromagnetic valve and the engines on the inner section wing and the outer section wing.
In a third aspect, the present invention provides a method of using an aircraft as described in the second aspect, in particular as follows:
when no emergency exists, the control system controls the electromagnetic valve to be opened, so that the interior of the cylinder is communicated with the outside atmosphere;
When an emergency is met, the control system controls the electromagnetic valve to be closed, so that the space between the rubber sealing head and the electromagnetic valve in the cylinder becomes a closed space, and the trend of the wing to continue to rotate is restrained.
The beneficial effects of the invention are as follows:
(1) The invention is provided with a semicircular cylinder, a connecting rod which can move relatively to the semicircular cylinder around the axis is arranged in the cylinder, the connecting rod and the cylinder are connected with the wing through the fixed plate, the cylinder and the connecting rod can move relatively to the wing, the connection and the disconnection of the cylinder and the outside are controlled through the electromagnetic valve, and when the wing is inclined abnormally, the abnormal inclination of the wing is restrained by utilizing the principle of gas compression.
(2) According to the invention, one end of the air cylinder is opened, the other end of the air cylinder is closed, the closed end is provided with the electromagnetic valve, when abnormal tilting occurs, the sealing of the space between the rubber sealing head and the closed end can be controlled through the electromagnetic valve, so that the abnormal tilting transfer toward potential of the wing is restrained, meanwhile, the open end of the air cylinder is communicated with the atmosphere, the normal angle adjustment of the wing is not influenced, and the emergency capability of the aircraft is greatly improved.
(3) The air pressure protection device is arranged between the inner section wing and the outer section wing, is controlled by the control system, can control the on-off of the electromagnetic valve by combining the comparison of the actual tilting angle and the control tilting angle of the wings, and ensures the control precision.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic view of an overall cross-sectional configuration of an air pressure protection device for an active tilt airfoil according to one or more embodiments of the invention;
FIG. 2 is a schematic view of an exploded construction of an active tilting airfoil portion according to one or more embodiments of the invention;
In the figure: the mutual spacing or size is exaggerated for showing the positions of all parts, and the schematic drawings are used only for illustration;
1, an air cylinder; 2. a connecting rod; 3. a rubber sealing head; 4. an electromagnetic valve; 5. a first fixing plate; 6. a second fixing plate; 7. an inner section wing; 8. an outer section wing; 9. a tilting shaft; 10. and an air pressure protection device.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
As described in the background art, because the tilting movement of the active tilting wing is completely dependent on the tension difference of the engine, the engine is required to continuously adjust the rotation speed and the power output, so that the efficiency of the power system is lower, for example, the situation that tilting cannot be controlled when bad weather is encountered in the air occurs, and the phenomenon that the aircraft is out of control and falls due to abnormal tilting of the wing occurs when the aircraft is serious, in order to solve the technical problems, the invention provides the air pressure protection device of the active tilting wing, the aircraft and the method thereof.
Example 1
In an exemplary embodiment of the present invention, as shown in fig. 1, an air pressure protection device for an active tilting airfoil is provided, which includes an air cylinder 1, a connecting rod 2, a rubber sealing head 3, an electromagnetic valve 4, a first fixing plate 5, and a second fixing plate 6.
The cylinder 1 is of a semicircular structure, one end of the cylinder 1 is opened, the other end of the cylinder is sealed, the electromagnetic valve 4 is fixedly arranged at the sealing end of the cylinder 1, the electromagnetic valve 4 is communicated with the inside of the cylinder 1, and the air pressure inside the cylinder 1 can be controlled.
The connecting rod 2 is an arc-shaped connecting rod, the radian of the connecting rod 2 is the same as that of the cylinder 1, one end of the connecting rod 2 is inserted into the cylinder 1 from the opening end of the cylinder 1, and the connecting rod 2 can move around the axis of the cylinder 1 in the cylinder 1.
The semicircular cylinder 1 and the arc-shaped connecting rod are arranged, so that the installation of the air pressure protection device is greatly facilitated, and the installation difficulty is reduced.
The inner diameter of the air cylinder 1 is the same as the outer diameter of the tilting shaft 9 of the wing, the air cylinder 1 can be sleeved on the tilting shaft 9, the axis of the air cylinder 1 is coincident with the axis of the wing tilting shaft 9, and the axis of the connecting rod 2 is also coincident with the axis of the wing tilting shaft 9 due to the fact that the radian of the connecting rod 2 is the same as the radian of the air cylinder 1.
The side wall of the air cylinder 1 is fixedly provided with a first fixing plate 5, the end part of the connecting rod 2 extending out of the air cylinder 1 is fixedly provided with a second fixing plate 6, the first fixing plate 5 and the second fixing plate 6 are arranged on different sides, and the first fixing plate 5 and the second fixing plate 6 are oppositely arranged and are used for fixedly connecting the air cylinder 1, the connecting rod 2 and the adjacent wing.
Because the first fixing plate 5 and the second fixing plate 6 are oppositely arranged, the air cylinder 1 and the connecting rod 2 are respectively and fixedly connected with wings of different sections on the same side, for example, the air cylinder 1 is fixedly connected with the outer section wing 8, the connecting rod 2 is fixedly connected with the inner section wing 7, and the air cylinder 1 and the connecting rod 2 are coaxially arranged with the tilting shaft 9 of the wing, so that the air cylinder 1 and the connecting rod 2 can do relative motion along with the wings fixedly connected with the air cylinder 1 and the connecting rod 2.
It will be appreciated that the cylinder 1 may also be fixedly connected to the inner wing 7, and at this time, the connecting rod 2 may be fixedly connected to the outer wing 8 by bolting, welding, etc., which may be specifically selected according to the actual design requirements, without any limitation.
The end part of the connecting rod 2, which is positioned in the cylinder 1, is fixedly provided with a rubber sealing head 3, and the rubber sealing head 3 can be matched with an electromagnetic valve 4 at the sealing end part of the cylinder 1, so that the space, which is positioned between the rubber sealing head 3 and the electromagnetic valve 4, in the cylinder 1 is closed or opened.
The opening and closing of the electromagnetic valve 4 can control the opening and closing of the sealing end of the air cylinder 1 and the outside, so that the air in the air cylinder 1 is controlled to be airtight or open in the space between the rubber sealing end 3 and the electromagnetic valve 4, and because air has compressibility, when an emergency is encountered to cause the wing to be at an abnormally large angle, the air pressure in the airtight space is increased to generate resistance, the rotation angle of the connecting rod 2/the air cylinder 1 can be limited, the trend of the wing to continue to rotate is restrained, the occurrence of accidents is avoided, and the normal angle adjustment of the wing cannot be influenced.
Example 2
In another exemplary embodiment of the present invention, as shown in fig. 2, an air pressure protection device for an active tilting wing in embodiment 1 is provided, and the air pressure protection device comprises a fuselage and active tilting wings disposed on two sides of the fuselage, wherein the active tilting wings are composed of an inner wing 7 and an outer wing 8 connected by a tilting shaft 9, the inner wing 7 is fixedly disposed on the fuselage, the outer wing 8 is rotatable around the axis of the tilting shaft 9, and the air pressure protection device 10 is disposed between the inner wing 7 and the outer wing 8 on the same side.
Specifically, the cylinder 1 is sleeved on the tilting shaft 9 of the wing, the cylinder 1 and the tilting shaft 9 of the wing are coaxially arranged, the cylinder 1 is fixedly connected with the outer section wing 8 through the first fixing plate 5, the connecting rod 2 is fixedly connected with the inner section wing 7 through the second fixing plate 6, and the cylinder 1 and the connecting rod 2 can rotate around the axis relatively along with the inner section wing and the outer section wing.
It will be appreciated that the cylinder 1 may also be fixedly connected to the inner wing 7, and the connecting rod 2 is fixedly connected to the outer wing 8, which may be specifically selected according to practical design requirements, without any excessive limitation.
The control system is an existing aircraft control system, is respectively connected with the engines on the inner section wing and the outer section wing and the electromagnetic valve 4, and can control the start and stop of the engine work on the inner section wing and the outer section wing and the on-off of the electromagnetic valve 4.
The control system can control the on-off of the electromagnetic valve 4 by combining the comparison of the actual tilting angle and the control tilting angle of the wing, when the wing encounters an emergency and causes the deviation of the actual tilting angle and the control (design) tilting angle, the control electromagnetic valve 4 is closed, when the actual tilting angle is the same as the control tilting angle, the electromagnetic valve 4 is opened, for example, when the wing encounters an emergency and causes the abnormal large-angle rotation of the wing, the electromagnetic valve 4 is in a closed state so that a closed space is formed in the air cylinder 1, the air pressure is increased to generate resistance, and the trend of the wing to continue rotating is restrained; in the normal use process (namely, when no emergency such as strong wind exists), when the outer-section wing 8 tilts from the vertical state to the horizontal state or tilts from the horizontal state to the vertical state, the electromagnetic valve 4 is opened, so that the inside of the cylinder 1 is communicated with the outside atmosphere, the connecting rod 2 can drive the rubber sealing head 3 to freely move in the cylinder 1, if the emergency is encountered at the moment, the electromagnetic valve 4 can be closed, and the rotation angle of the connecting rod 2/the cylinder 1 is limited by utilizing the compressible principle of gas.
It can be understood that the wireless transmission module can also be arranged, so that the control system is connected with the wireless transmission module, and the work of the electromagnetic valve 4 on the aircraft can be controlled remotely by people, so that the emergency accuracy and the response speed of the aircraft are improved.
Example 3
In another exemplary embodiment of the invention, a method is proposed, which uses the aircraft described in example 2, by means of the principle of compressibility of the gas, limits the rotation angle of the ring link, avoids accidents and does not affect the normal angular adjustment of the wing.
The method comprises the following steps:
when no emergency exists, the control system controls the electromagnetic valve 4 to be opened, so that the interior of the air cylinder 1 is communicated with the outside atmosphere, the internal air pressure of the air cylinder 1 is ensured to be the same as the outside air pressure, and the connecting rod 2 can drive the rubber sealing head 3 to freely move around the axis in the air cylinder 1;
When an emergency (such as strong wind, gust and the like) is met, the control system controls the electromagnetic valve 4 to be closed, so that a space between the rubber sealing head 3 and the electromagnetic valve 4 in the air cylinder 1 is changed into a closed space, the air pressure in the closed space is increased under the action of the rubber sealing head 3 to generate resistance so as to limit the rotation angle of the connecting rod 2/the air cylinder 1, thereby inhibiting the trend of the wing to continue rotating, avoiding the occurrence of accidents, and the normal angle adjustment of the outer-section wing 8 is not influenced because the open end of the air cylinder 1 is still communicated with the external environment.
It can be understood that abnormal rotation of the outer-section wing 8 can also be prevented, specifically, when the outer-section wing 8 is in a vertical state, the electromagnetic valve 4 can be closed, so that when the outer-section wing 8 encounters an emergency, the rotation of the outer-section wing 8 can be timely restrained, and a prevention effect is achieved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an initiative tilting wing's atmospheric pressure protection device, its characterized in that, includes semi-circular cylinder, be equipped with the connecting rod in the cylinder, cylinder and connecting rod can wind axis relative motion, the connecting rod stretches out from the one end of cylinder, and the other end of cylinder is fixed to be equipped with the solenoid valve that is used for controlling inside and external break-make of cylinder, the end fixing that the connecting rod is located the cylinder is equipped with the rubber seal head, the lateral wall of cylinder, the connecting rod stretch out on the one end of cylinder respectively fixed be equipped with one be used for with wing fixed connection's fixed plate.
2. The air pressure protection device of an active tilting airfoil according to claim 1, wherein the fixing plate is divided into a first fixing plate and a second fixing plate, the first fixing plate is fixedly arranged on the side wall of the cylinder, the second fixing plate is fixedly arranged at the end part of the connecting rod extending out of the cylinder, and the first fixing plate and the second fixing plate are oppositely arranged.
3. The air pressure protection device of an active tilting airfoil according to claim 1, wherein the connecting rod is an arc-shaped connecting rod, and the connecting rod is coaxially arranged with the cylinder.
4. The air pressure protection device of an active tilting airfoil according to claim 1, wherein the cylinder is open at one end and closed at the other end, and the solenoid valve is disposed at the closed end of the cylinder.
5. An aircraft using the air pressure protection device of the active tilting wing according to any one of claims 1-4, which is characterized by comprising a fuselage and the active tilting wings arranged on two sides of the fuselage, wherein the active tilting wings are composed of an inner section wing and an outer section wing which are connected through a tilting shaft, the air pressure protection device is positioned between the inner section wing and the outer section wing and is rotatably arranged on the tilting shaft, and an air cylinder and a connecting rod can relatively rotate around an axis along with the inner section wing and the outer section wing.
6. The aircraft of claim 5, wherein the cylinder is fixedly connected to the outer wing by a first fixed plate and the connecting rod is fixedly connected to the inner wing by a second fixed plate.
7. An aircraft according to claim 5, wherein the cylinder is arranged coaxially with the tilting axis.
8. The aircraft of claim 5, wherein the inner wing is fixedly disposed on the fuselage and the outer wing is rotatably disposed on the tilt axis.
9. An aircraft according to claim 5, further comprising a control system connected to the solenoid valve and to the engines on the inner and outer wings, respectively.
10. A method of protecting the air pressure of an actively tilting wing, using an aircraft according to any one of claims 5-9, characterized by the following:
when no emergency exists, the control system controls the electromagnetic valve to be opened, so that the interior of the cylinder is communicated with the outside atmosphere;
When an emergency is met, the control system controls the electromagnetic valve to be closed, so that the space between the rubber sealing head and the electromagnetic valve in the cylinder becomes a closed space, and the trend of the wing to continue to rotate is restrained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210793903.4A CN115009528B (en) | 2022-07-07 | Air pressure protection device of active tilting wing, aircraft and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210793903.4A CN115009528B (en) | 2022-07-07 | Air pressure protection device of active tilting wing, aircraft and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115009528A CN115009528A (en) | 2022-09-06 |
| CN115009528B true CN115009528B (en) | 2024-06-28 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523101A (en) * | 2013-10-28 | 2014-01-22 | 胡宁 | Air-operated wing-type carriage |
| CN107084214A (en) * | 2017-05-05 | 2017-08-22 | 中国科学院长春光学精密机械与物理研究所 | A kind of rotation preventive mechanism of rotary shaft |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523101A (en) * | 2013-10-28 | 2014-01-22 | 胡宁 | Air-operated wing-type carriage |
| CN107084214A (en) * | 2017-05-05 | 2017-08-22 | 中国科学院长春光学精密机械与物理研究所 | A kind of rotation preventive mechanism of rotary shaft |
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