Aerospace adjustable air inlet device

Abstract

The utility model discloses an aerospace adjustable air inlet device which comprises an air inlet pipe. The honeycomb plate is fixedly arranged on one side of the inner cavity of the air inlet pipe; the air inlet adjusting mechanism is arranged in an inner cavity of the air inlet pipe; and the air inlet cleaning mechanism is arranged on one side of the air inlet pipe. According to the aerospace adjustable air inlet device, by arranging the air inlet adjusting mechanism, the rotating rod can be controlled to drive the baffle to rotate by a certain angle so that the air inlet amount of the air inlet cylinder can be changed, and by adjusting the size of the air inlet, an aerospace machine can obtain the optimal aerodynamic performance in different flight stages; by arranging the air inlet cleaning mechanism, the shifting rod can be controlled to do circumferential rotation on one side of the cellular board so as to clean foreign matters on one side of the cellular board, and the isolated foreign matters are prevented from blocking one side of the air inlet pipe, so that normal air can enter the air inlet pipe, and normal operation of the aerospace machine is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of aerospace, in particular to an aerospace adjustable air inlet device. Background Art

[0002] The air intake of an aerospace aircraft is an important component that connects the external and internal systems of the aircraft. Its function is to guide a large amount of air into the fuselage for use by the internal systems, especially the air required by the engine. The design and function of the air intake have an important impact on the performance, fuel efficiency and operational safety of the aircraft.

[0003] When an aircraft is flying at high speed, an air intake that is too large may increase resistance, while during the climbing phase, an air intake that is too small may limit the performance of the engine, resulting in poor flexibility of the aircraft. During flight, foreign objects isolated in the air intake may easily block the air intake, thereby affecting the normal air intake effect. Utility Model Content

[0004] The utility model aims to provide an adjustable air inlet device for aerospace, so as to solve the problem in the prior art that aerospace aircraft has poor flexibility and foreign matter is easily blocked in the air inlet after being isolated in the air inlet during flight, thereby affecting the normal air intake effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an aerospace adjustable air inlet device, comprising:

[0006] Intake pipe;

[0007] A honeycomb panel is fixedly arranged on one side of the inner cavity of the air inlet pipe;

[0008] An air intake regulating mechanism, arranged in the inner cavity of the air intake pipe;

[0009] The air inlet cleaning mechanism is arranged on one side of the air inlet pipe.

[0010] Preferably, the air intake regulating mechanism includes: an air intake cylinder, fixedly arranged in the inner cavity of the air intake pipe; a conical gear disk, rotatably arranged on the outer wall of the air intake cylinder through a bearing; a rotating rod, a plurality of rotating rods are circumferentially inserted into the outer wall of the air intake cylinder; a limiting column, one end of the rotating rod is sleeved with the limiting column; a baffle, fixedly arranged on the outer wall of the rotating rod; a first bevel gear, keyed to one end of the rotating rod, and the first bevel gear is meshed with one side of the bevel gear disk; a first shell, fixedly arranged on the outer wall of the air intake pipe; a stepper motor, fixedly arranged in the first shell; a second bevel gear, the output end of the stepper motor extends into the inner cavity of the air intake pipe and is keyed to the second bevel gear, and the second bevel gear is meshed with the other side of the bevel gear disk.

[0011] Preferably, the air intake cylinder is in the shape of an I-shape.

[0012] Preferably, a plurality of baffles are arranged in contact with each other.

[0013] Preferably, the air inlet cleaning mechanism includes: a bracket, one end of the air inlet pipe is fixedly provided with the bracket; a strip shell, fixedly provided on the inner side of the bracket; a second shell, fixedly provided on the bottom end of the outer wall of the air inlet pipe, and the second shell is fixedly provided on one side of the strip shell; a motor, fixedly provided in the inner cavity of the second shell; a rotating shaft, rotatably provided at the top end of one side of the inner cavity of the strip shell through a bearing; a sprocket, the output end of the motor and the outer wall of the rotating shaft are both key-connected with a sprocket; a chain, being chain-connected to the outer walls of the two sprockets; a lever, one end of the rotating shaft extends out of one end of the strip shell, and the outer wall of the rotating shaft is fixedly provided with a lever on both the upper and lower sides.

[0014] Preferably, one end of the rotating shaft is rotatably connected to the center position of one side of the honeycomb panel, and one side of the shifting rod is in contact with one side of the honeycomb panel.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the aerospace adjustable air inlet device;

[0016] 1. The air intake adjustment mechanism can control the rotating rod to drive the baffle to rotate a certain angle to change the air intake volume of the air intake cylinder. By adjusting the size of the air intake, the aerospace aircraft can obtain the best aerodynamic performance in different flight stages;

[0017] 2. By providing an air inlet cleaning mechanism, the lever can be controlled to rotate in a circle on one side of the honeycomb panel to clean foreign matter on one side of the honeycomb panel, thereby preventing the isolated foreign matter from being blocked on one side of the air inlet pipe, thereby allowing a normal amount of air to enter the air inlet pipe and ensuring the normal operation of the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a right side sectional view of the utility model;

[0020] Figure 3 It is a front cross-sectional view of the utility model;

[0021] Figure 4 For this utility model Figure 3 A in the enlarged view;

[0022] Figure 5 It is a schematic diagram of the explosion structure of the air intake cleaning mechanism of the utility model.

[0023] In the figure: 1. air intake pipe; 2. honeycomb panel; 3. air intake regulating mechanism; 31. air intake cylinder; 32. conical gear disc; 33. rotating rod; 34. limiting column; 35. baffle; 36. first conical gear; 37. first shell; 38. stepping motor; 39. second conical gear; 4. air intake cleaning mechanism; 41. bracket; 42. strip shell; 43. second shell; 44. motor; 45. rotating shaft; 46. sprocket; 47. chain; 48. lever. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution: an aerospace adjustable air inlet device, comprising: an air inlet pipe 1, a honeycomb plate 2, an air inlet regulating mechanism 3 and an air inlet cleaning mechanism 4;

[0026] The honeycomb panel 2 is fixedly arranged at one side of the inner cavity of the air intake pipe 1 , the air intake regulating mechanism 3 is arranged at the inner cavity of the air intake pipe 1 , and the air intake cleaning mechanism 4 is arranged at one side of the air intake pipe 1 .

[0027] As a preferred solution, further, the air intake adjustment mechanism 3 includes: an air intake cylinder 31, a conical toothed disc 32, a rotating rod 33, a limiting column 34, a baffle 35, a first conical gear 36, a first housing 37, a stepping motor 38 and a second conical gear 39;

[0028] In order to adjust the intake volume of the intake pipe 1, the intake cylinder 31 is fixedly arranged in the inner cavity of the intake pipe 1, and the conical toothed disc 32 is rotatably arranged on the outer wall of the intake cylinder 31 through a bearing. There are tooth grooves on both sides of the conical toothed disc 32. A plurality of rotating rods 33 are inserted into the outer wall of the intake cylinder 31 along the circumferential direction. One end of the rotating rod 33 is sleeved with a limiting column 34, and a baffle 35 is fixedly arranged on the outer wall of the rotating rod 33.

[0029] In order to control the deflection of the baffle 35, the first bevel gear 36 is keyed to one end of the rotating rod 33, and the first bevel gear 36 is meshed with one side of the bevel toothed disc 32. The first shell 37 is fixedly arranged on the outer wall of the intake pipe 1, and the stepper motor 38 is fixedly arranged in the first shell 37. The output end of the stepper motor 38 extends into the inner cavity of the intake pipe 1 and is keyed to the second bevel gear 39, and the second bevel gear 39 is meshed with the other side of the bevel toothed disc 32. The stepper motor 38 can drive the second bevel gear 39 to rotate a certain angle so that the second bevel gear 39 moves the bevel toothed disc 32.

[0030] As a preferred solution, further, the shape of the air intake cylinder 31 is an I-shape, so that the air intake cylinder 31 can be installed in the air intake pipe 1.

[0031] As a preferred solution, further, a plurality of baffles 35 are arranged in contact with each other to perform sealing and adjustment on the inner cavity of the air inlet cylinder 31 .

[0032] As a preferred solution, further, the air inlet cleaning mechanism 4 includes: a bracket 41, a strip shell 42, a second shell 43, a motor 44, a rotating shaft 45, a sprocket 46, a chain 47 and a lever 48;

[0033] In order to clean one side of the honeycomb panel 2, a bracket 41 is fixedly arranged at one end of the air inlet pipe 1, a strip shell 42 is fixedly arranged on the inner side of the bracket 41, a second shell 43 is fixedly arranged at the bottom end of the outer wall of the air inlet pipe 1, and the second shell 43 is fixedly arranged on one side of the strip shell 42, a motor 44 is fixedly arranged in the inner cavity of the second shell 43, and a rotating shaft 45 is rotatably arranged at the top of one side of the inner cavity of the strip shell 42 through a bearing;

[0034] In order to drive the rotating shaft 45 to rotate, the output end of the motor 44 and the outer wall of the rotating shaft 45 are key-connected with a sprocket 46, and the chain 47 is chain-connected to the outer walls of the two sprockets 46. One end of the rotating shaft 45 extends out of one end of the strip shell 42, and levers 48 are fixedly provided on the upper and lower sides of the outer wall of the rotating shaft 45. After the motor 44 is started, it can control one of the sprockets 46 to rotate clockwise, so that the other sprocket 46 drives the rotating shaft 45 to rotate clockwise under the drive of the chain 47, thereby driving the lever 48 to rotate.

[0035] As a preferred solution, further, one end of the rotating shaft 45 is rotatably connected to the center position of one side of the honeycomb panel 2, one side of the lever 48 is in contact with one side of the honeycomb panel 2, and the lever 48 can rotate in a circle to move foreign objects isolated on one side of the honeycomb panel 2 down.

[0036] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0037] Step 1: Start the stepper motor 38 and the motor 44. After the stepper motor 38 is started, it can drive the second bevel gear 39 to rotate clockwise by a certain angle, so that the second bevel gear 39 drives the bevel gear plate 32 to rotate clockwise by a certain angle around the outer wall of the air intake cylinder 31, thereby driving the first bevel gear 36 to rotate clockwise by a certain angle under the rotation of the bevel gear plate 32, thereby driving the rotating rod 33 to rotate clockwise by a certain angle, so that the rotating rod 33 drives the baffle 35 to rotate by a certain angle, so that one side of the air intake cylinder 31 can be opened, and the opening amount of the air intake pipe 1 can be adjusted, so that the aerospace aircraft can obtain the best aerodynamic performance in different flight stages;

[0038] Step 2: During the flight of an aerospace aircraft, the honeycomb panel 2 can effectively isolate foreign matter from entering the engine through the intake pipe 1 to ensure safety during flight. After the motor 44 is started, it can control one of the sprockets 46 to rotate clockwise, so that the other sprocket 46 drives the rotating shaft 45 to rotate clockwise under the drive of the chain 47, so as to drive the lever 48 to rotate, so that the lever 48 can push down the foreign matter isolated on one side of the honeycomb panel 2 to avoid blocking one end of the intake pipe 1 and affecting the intake effect.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aerospace adjustable air inlet device, characterized in that: include: Intake pipe (1); A honeycomb panel (2) is fixedly arranged on one side of the inner cavity of the air inlet pipe (1); An air intake regulating mechanism (3) is arranged in the inner cavity of the air intake pipe (1); An air inlet cleaning mechanism (4) is arranged on one side of the air inlet pipe (1); The air intake adjustment mechanism (3) comprises: An air intake cylinder (31) fixedly arranged in the inner cavity of the air intake pipe (1); A conical gear disc (32) is rotatably arranged on the outer wall of the air intake cylinder (31) via a bearing; Rotating rods (33), a plurality of rotating rods (33) are inserted into the outer wall of the air inlet cylinder (31) along the circumferential direction; A limiting post (34), one end of the rotating rod (33) is sleeved on the limiting post (34); A baffle (35) fixedly disposed on the outer wall of the rotating rod (33); A first bevel gear (36) is key-connected to one end of the rotating rod (33), and the first bevel gear (36) is meshed with one side of the bevel gear disc (32); A first housing (37) fixedly disposed on the outer wall of the air intake pipe (1); A stepping motor (38) is fixedly disposed in the first housing (37); A second bevel gear (39), the output end of the stepper motor (38) extends into the inner cavity of the intake pipe (1) and is keyed to the second bevel gear (39), and the second bevel gear (39) is meshed with the other side of the bevel gear disc (32).

2. The adjustable air inlet device for aerospace according to claim 1, characterized in that: The air inlet cylinder (31) is in the shape of an I-shaped character.

3. The adjustable air inlet device for aerospace according to claim 1, characterized in that: A plurality of baffles (35) are arranged in contact with each other.

4. The adjustable air inlet device for aerospace according to claim 1, characterized in that: The air inlet cleaning mechanism (4) comprises: A bracket (41), one end of the air intake pipe (1) is fixedly provided with the bracket (41); A strip-shaped shell (42) fixedly disposed on the inner side of the bracket (41); A second shell (43) is fixedly arranged at the bottom end of the outer wall of the air inlet pipe (1), and the second shell (43) is fixedly arranged on one side of the strip shell (42); A motor (44) fixedly disposed in the inner cavity of the second housing (43); A rotating shaft (45) is rotatably arranged at a top end of one side of the inner cavity of the strip shell (42) via a bearing; A sprocket (46), the output end of the motor (44) and the outer wall of the rotating shaft (45) are both key-connected with a sprocket (46); A chain (47) is chain-connected to the outer walls of the two sprocket wheels (46); A lever (48), one end of the rotating shaft (45) extends out of one end of the strip shell (42), and the lever (48) is fixedly arranged on both upper and lower sides of the outer wall of the rotating shaft (45).

5. The adjustable air inlet device for aerospace according to claim 4, characterized in that: One end of the rotating shaft (45) is rotatably connected to the center position of one side of the honeycomb panel (2), and one side of the shifting rod (48) is in contact with one side of the honeycomb panel (2).

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