CN216788562U - Adjustable multi-duct convergent-divergent spray pipe structure - Google Patents

Abstract

The utility model discloses an adjustable multi-duct convergent-divergent nozzle structure which comprises a fixed cylinder and a connecting cylinder, wherein a connecting piece is arranged in the connecting cylinder, a connecting ring is fixedly arranged on one side of the connecting piece, the surface of the connecting ring is connected with a first rotating plate and a second rotating plate, a hydraulic cylinder is arranged on the surface of the connecting ring, a hydraulic rod is connected in the hydraulic cylinder in a sliding manner, the surface of the second rotating plate is connected with a connecting rod, and two ends of the connecting rod are provided with sliding blocks. This many ducts of adjustable receive and expand spray tube structure through setting up pneumatic cylinder, hydraulic stem, first rotation board and second rotor plate, drives the hydraulic stem through the drive pneumatic cylinder and moves, and the hydraulic stem is articulated mutually with first rotation board, conveniently drives first rotation board motion, and first rotation board passes through connecting rod and slider and drives the second rotor plate and rotate, conveniently receives to expand the regulation to the spout of spray tube, has promoted the practicality of device.

Description

An adjustable multi-channel retracting and expanding nozzle structure

technical field

The utility model relates to the related technical field of aircraft nozzles, in particular to an adjustable multi-duct retracting and expanding nozzle structure.

Background technique

The tail nozzle is one of the key components of the engine of a jet aircraft. Its main function is to use the reaction force generated when the air is injected to propel the aircraft, and also to burn the fuel products such as carbon dioxide, sulfur dioxide, carbon monoxide, nitrogen oxides, The incompletely combusted small molecular hydrocarbons are sprayed out and play the role of exhaust gas.

Most of the supersonic passenger jet nozzles under development are three-channel fixed-geometry nozzles, which cannot adjust the expansion and contraction of the nozzle, and it is inconvenient to adjust the angle of the nozzle, which is not suitable for large-scale flight from subsonic to supersonic, so we This paper proposes an adjustable multi-passage retracting and expanding nozzle structure in order to solve the problems mentioned above.

Utility model content

The purpose of the present utility model is to provide an adjustable multi-ducted retracting and expanding nozzle structure, in order to solve the problem that most of the supersonic passenger aircraft nozzles under research are three-ducted fixed geometric nozzles in the above-mentioned background technology, and the nozzles cannot be adjusted. It is not convenient to adjust the angle of the nozzle, and it is not suitable for the problem of large-scale flight from subsonic speed to supersonic speed.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an adjustable multi-duct retracting and expanding nozzle structure, comprising a fixed cylinder and a connecting cylinder, the connecting cylinder is provided with a connecting piece inside, and one of the connecting pieces is A connecting ring is fixedly installed on the side, a first rotating plate and a second rotating plate are connected on the surface of the connecting ring, a hydraulic cylinder is arranged on the surface of the connecting ring, and a hydraulic rod is slidably connected inside the hydraulic cylinder, and the second rotating plate is connected to the surface of the connecting ring. The surface of the rotating plate is connected with a connecting rod, and both ends of the connecting rod are provided with sliders, the inner wall of the connecting cylinder is fixedly installed with a first motor, and the output end of the first motor is fixedly connected with a first gear, so A fixing ring is fixedly installed on one side of the connecting cylinder, a convex ring is fixedly installed on the surface of the fixing ring, a second motor is fixedly installed in the inner wall of the fixing cylinder, and the output end of the second motor is connected with a second gear, And the surfaces of the fixing cylinder and the connecting cylinder are provided with installation openings.

Preferably, both the first rotating plate and the second rotating plate rotate on the surface of the connecting ring, the connection between the connecting ring and the hydraulic cylinder is hinged connection, and the connection between the hydraulic rod and the first rotating plate for hinged connection.

Preferably, a sliding groove is provided on the surface of the first rotating plate, and the connection between the sliding blocks on the surfaces of both ends of the connecting rod and the sliding groove is a sliding connection.

Preferably, a rack is fixedly mounted on the surface of the connecting piece, and the connection mode between the rack and the first gear is meshing connection.

Preferably, a connecting plate is fixedly installed on the surface of the connecting piece, a limit plate is fixedly installed on the inner wall of the connecting cylinder, and the connection between the connecting plate and the limit plate is a sliding connection.

Preferably, a ring gear is fixedly mounted on the surface of the fixing ring, and the connection mode between the second gear and the ring gear is meshing connection.

Preferably, the connection between the protruding ring and the fixing cylinder is rotational connection, and a rotating structure is formed between the fixing cylinder and the connecting cylinder.

Compared with the prior art, the beneficial effects of the utility model are: the adjustable multi-passage retracting and expanding nozzle structure facilitates the adjustment of the nozzles of the nozzles, and facilitates the adjustment of the angle of the nozzles, improving the performance of the nozzles. the usability of the device.

1. By arranging a hydraulic cylinder, a hydraulic rod, a first rotating plate and a second rotating plate, the hydraulic rod is driven to move by driving the hydraulic cylinder, and the hydraulic rod is hinged with the first rotating plate to facilitate the movement of the first rotating plate. The rotating plate drives the second rotating plate to rotate through the connecting rod and the sliding block, which facilitates the adjustment of the expansion and contraction of the nozzle of the nozzle and improves the practicability of the device.

2. By arranging the first gear, the second gear, the rack and the ring gear, the connection between the first gear and the rack is meshing connection, which is convenient to drive the connecting piece to rotate inside the connecting cylinder, and the nozzle of the nozzle is not affected. The inclination angle is adjusted, and the connection between the second gear and the ring gear is meshing connection, which is convenient to drive the connecting cylinder to rotate inside the fixed cylinder through the second gear, and it is convenient to adjust the direction of the nozzle of the nozzle, which improves the device's performance. practicality.

Description of drawings

Fig. 1 is the three-dimensional structural representation of the utility model;

Fig. 2 is the structural schematic diagram of the connecting cylinder and the first rotating plate of the present invention;

Fig. 3 is the enlarged structural schematic diagram of part A in Fig. 2 of the present utility model;

4 is a schematic structural diagram of the first rotating plate and the second rotating plate of the present invention;

5 is a schematic structural diagram of the first gear and rack of the present invention;

6 is a schematic structural diagram of the connector and the rack of the present invention;

Fig. 7 is the structural schematic diagram of the connecting piece and the connecting cylinder of the present invention;

FIG. 8 is a schematic structural diagram of the second gear and the ring gear of the present invention.

In the figure: 1, fixed cylinder; 2, connecting cylinder; 3, connecting piece; 4, connecting ring; 5, first rotating plate; 6, second rotating plate; 7, hydraulic cylinder; 8, hydraulic rod; 9, connection rod; 10, slider; 11, chute; 12, first motor; 13, first gear; 14, rack; 15, connecting plate; 16, second motor; 17, second gear; 18, fixing ring ; 19, ring gear; 20, convex ring; 21, installation port; 22, limit plate.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-4 , the present utility model provides a technical solution: an adjustable multi-channel retracting and expanding nozzle structure, including a fixed cylinder 1 and a connecting cylinder 2, in order to facilitate the expansion and contraction of the nozzle of the nozzle , a connecting piece 3 can be arranged inside the connecting cylinder 2, and a connecting ring 4 is fixedly installed on one side of the connecting piece 3, and the surface of the connecting ring 4 is connected with a first rotating plate 5 and a second rotating plate 6, the first rotating Both the plate 5 and the second rotating plate 6 rotate on the surface of the connecting ring 4, and the connection between the connecting ring 4 and the hydraulic cylinder 7 is hinged connection, and the connection between the hydraulic rod 8 and the first rotating plate 5 is as follows: Hinged connection is convenient to drive the hydraulic rod 8 to move, drive the first rotating plate 5 on one side to rotate, adjust the contraction and expansion of the nozzle, and the surface of the connecting ring 4 is provided with a hydraulic cylinder 7, and the interior of the hydraulic cylinder 7 is slidably connected with a The hydraulic rod 8, the surface of the second rotating plate 6 is connected with a connecting rod 9, and the two ends of the connecting rod 9 are provided with sliders 10, the surface of the first rotating plate 5 is provided with a chute 11, and the two ends of the connecting rod 9 are provided with The connection between the slider 10 and the chute 11 on the surface is a sliding connection, which is convenient for sliding the slider 10 in the chute 11, which is convenient for limiting the first rotating plate 5 and the second rotating plate 6, and improving its practicality. sex.

Please refer to FIGS. 5-8 , in order to adjust the direction of the nozzle nozzle conveniently, the first motor 12 can be fixedly installed inside the inner wall of the connecting cylinder 2 , and the output end of the first motor 12 is fixedly connected with the first gear 13 . A rack 14 is fixedly installed on the surface of the connecting piece 3, and the connection between the rack 14 and the first gear 13 is meshing connection, which is convenient to drive the rack 14 to move through the rotation of the first gear 13, so that the connecting piece 3 is in the connecting cylinder. 2, the surface of the connecting piece 3 is fixedly installed with the connecting plate 15, and the inner wall of the connecting cylinder 2 is fixedly installed with the limiting plate 22, and the connection between the connecting plate 15 and the limiting plate 22 is a sliding connection, which is convenient for connecting The plate 15 slides with the limit plate 22, which is convenient to limit the connecting piece 3 and prevent the rack 14 from being separated from the first gear 13. A fixing ring 18 is fixedly installed on one side of the connecting cylinder 2, and the surface of the fixing ring 18 is fixedly installed There is a convex ring 20, a second motor 16 is fixedly installed in the inner wall of the fixing cylinder 1, and the output end of the second motor 16 is connected with a second gear 17, and the surfaces of the fixing cylinder 1 and the connecting cylinder 2 are provided with installation ports 21. . A ring gear 19 is fixedly installed on the surface of the fixing ring 18, and the connection mode between the second gear 17 and the ring gear 19 is meshing connection, which is convenient to drive the ring gear 19 to rotate through the rotation of the second gear 17, and the connection is made by the ring gear 19. The cylinder 2 is rotatably connected with the fixed cylinder 1, the connection between the convex ring 20 and the fixed cylinder 1 is a rotary connection, and a rotating structure is formed between the fixed cylinder 1 and the connecting cylinder 2, which is convenient for the concave ring 20 to limit the connecting cylinder 2. bit.

Working principle: First, when in use, when the degree of retraction and expansion of the nozzle of the aircraft nozzle needs to be adjusted, each hydraulic cylinder 7 is activated at the same time, and the hydraulic rod 8 is driven to rotate by the hydraulic cylinder 7, and the hydraulic cylinder 7 is hinged with the connecting ring 4. , the hydraulic rod 8 is hinged with the first rotating plate 5, which is convenient to drive the first rotating plate 5 to rotate through the hydraulic rod 8, and the sliding blocks 10 at the two ends of the connecting rod 9 on the surface of the second rotating plate 6 slide on the surface of the first rotating plate 5 Sliding in the groove 11 is convenient to limit the inclination angle of the first rotating plate 5, and the first rotating plate 5 and the second rotating plate 6 are rotated at the same time to facilitate the adjustment of the expansion and contraction of the nozzle of the nozzle.

The first motor 12 is activated to drive the first gear 13 to rotate, and the first gear 13 is meshed with the rack 14 on the surface of the connecting piece 3, which facilitates the adjustment of the inclination angle of the connecting piece 3, and is slidably connected to the limit plate 22 through the connecting plate 15. , it is convenient to limit the connector 3, start the second motor 16 to drive the second gear 17 on the surface to rotate, the second gear 17 drives the ring gear 19 to rotate, and the ring gear 19 rotates to drive the fixed ring 18 and the connecting cylinder on one side. 2. Rotate to facilitate adjustment of the angle of inclination of the spout. The above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a spray tube structure is received and expanded to many ducts of adjustable, includes a fixed section of thick bamboo (1) and connecting cylinder (2), its characterized in that: the connecting device is characterized in that a connecting piece (3) is arranged inside the connecting cylinder (2), a connecting ring (4) is fixedly arranged on one side of the connecting piece (3), the surface of the connecting ring (4) is connected with a first rotating plate (5) and a second rotating plate (6), a hydraulic cylinder (7) is arranged on the surface of the connecting ring (4), a hydraulic rod (8) is connected inside the hydraulic cylinder (7) in a sliding manner, a connecting rod (9) is connected on the surface of the second rotating plate (6), sliders (10) are arranged at two ends of the connecting rod (9), a first motor (12) is fixedly arranged inside the inner wall of the connecting cylinder (2), a first gear (13) is fixedly connected at the output end of the first motor (12), a fixing ring (18) is fixedly arranged on one side of the connecting cylinder (2), a convex ring (20) is fixedly arranged on the surface of the fixing ring (18), a second motor (16) is fixedly arranged inside the inner wall of the fixing cylinder (1), and the output end of the second motor (16) is connected with a second gear (17), and the surfaces of the fixed cylinder (1) and the connecting cylinder (2) are provided with mounting ports (21).

2. The adjustable multi-duct convergent-divergent nozzle structure according to claim 1, wherein: the first rotating plate (5) and the second rotating plate (6) rotate on the surface of the connecting ring (4), the connecting ring (4) and the hydraulic cylinder (7) are connected in a hinged mode, and the hydraulic rod (8) and the first rotating plate (5) are connected in a hinged mode.

3. The adjustable multi-duct convergent-divergent nozzle structure according to claim 1, wherein: the surface of the first rotating plate (5) is provided with a sliding groove (11), and the sliding blocks (10) on the surfaces of the two ends of the connecting rod (9) are connected with the sliding groove (11) in a sliding mode.

4. The adjustable multi-duct convergent-divergent nozzle structure according to claim 1, wherein: the surface of the connecting piece (3) is fixedly provided with a rack (14), and the rack (14) is connected with the first gear (13) in a meshing manner.

5. The adjustable multi-duct convergent-divergent nozzle structure according to claim 1, wherein: the surface fixed mounting of connecting piece (3) has connecting plate (15), and the inner wall fixed mounting of connecting cylinder (2) has limiting plate (22) to connected mode between connecting plate (15) and limiting plate (22) is sliding connection.

6. The adjustable multi-duct convergent-divergent nozzle structure according to claim 1, wherein: the surface of the fixing ring (18) is fixedly provided with a gear ring (19), and the second gear (17) is connected with the gear ring (19) in a meshing manner.

7. The adjustable multi-duct convergent-divergent nozzle structure according to claim 1, wherein: the convex ring (20) is connected with the fixed cylinder (1) in a rotating mode, and a rotating structure is formed between the fixed cylinder (1) and the connecting cylinder (2).

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