Supersonic separation line ball socket swinging spray pipe

Abstract

The utility model provides a supersonic speed separation line ball socket swing spray pipe, which relates to the technical field of spray pipes, and comprises a subsonic speed ball socket fixing body, a supersonic speed expansion swing body and a brake assembly, the tail end of the subsonic speed ball socket fixing body is of a spherical surface structure, and the supersonic speed expansion swing body is composed of an expansion section and a tail ring arranged at the bottom of the expansion section. The expansion section is in sealed connection with the tail ring and the tail end of the subsonic speed ball socket fixing body, the separation line is located in the area close to the supersonic speed expansion swing body, and the brake assembly drives the expansion section of the swing spray pipe to swing. According to the utility model, the rocket controls the brake to brake so as to drive the expansion section of the swing spray pipe to swing and generate lateral thrust, the torsion-resistant assembly avoids circumferential deflection of the swing spray pipe when the swing spray pipe swings along the axis, and the separation line is positioned in an area close to the supersonic speed expansion swing body; shock waves are formed on the protruding portion of the tail ring in the swing process of the expansion section, lateral force is amplified, and the pneumatic performance of the swing spray pipe is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a nozzle technical field, concretely relates to a supersonic separation line ball socket swing nozzle. BACKGROUND

[0002] Swing nozzle technology is one of the key technologies of solid rocket engine thrust vector control, and is also an advanced technology commonly used in current large advanced strategic missile engines. When the solid rocket engine works, the swing nozzle serves as a gas passage to convert chemical energy into kinetic energy, and simultaneously swings along the pivot to change the direction of the gas and provide vector conversion function.

[0003] Traditional swing nozzles are mainly flexible joint type, and the flexible joint uses rubber elastomer and metal or non-metal reinforcing elements as core laminated materials, and uses the shear deformation of rubber to achieve swing action. Therefore, on the one hand, there are problems of rubber aging and long-term storage, and on the other hand, due to the large internal resistance of rubber, the swing torque is relatively high, and the brake assembly is large, which brings extra dead weight to the rocket and reduces the aerodynamic performance of the swing nozzle. Therefore, the utility model provides a supersonic separation line ball socket swing nozzle to improve the above problems. SUMMARY

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defects mentioned in the above, so as to provide a supersonic separation line ball socket swing nozzle.

[0005] In order to solve the above problems, the utility model provides a supersonic separation line ball socket swing nozzle, which comprises:

[0006] A supersonic separation line ball socket swing nozzle comprises a subsonic ball socket fixed body, a supersonic expansion swing body and a brake assembly, the subsonic ball socket fixed body is sequentially provided with a converging section shell, a converging section lining and a throat lining from top to bottom, the converging section shell, the converging section lining and the throat lining are bonded by adhesive, the end of the subsonic ball socket fixed body is provided with a spherical surface structure, the supersonic expansion swing body is composed of an expansion section and a tail ring arranged at the bottom of the expansion section, the expansion section is sealingly connected with the tail ring and the end of the subsonic ball socket fixed body, the separation line is located in the region close to the supersonic expansion swing body, and the brake assembly is arranged between the subsonic ball socket fixed body and the supersonic expansion swing body to drive the expansion section of the swing nozzle to swing.

[0007] Optionally, the expansion section comprises an expansion section shell and an expansion section lining arranged at the bottom of the expansion section shell, and the front end of the expansion section lining is connected with the tail ring.

[0008] Optionally, the expansion section shell, the expansion section lining and the tail ring are bonded by adhesive.

[0009] Optionally, the brake assembly comprises a brake and two lugs, the two lugs are arranged on the converging section shell and the diverging section shell respectively, two ends of the brake are rotationally connected with the two lugs respectively, and rotation axes between the two ends of the brake and the lugs are arranged horizontally along the diameter direction of the oscillating nozzle.

[0010] Optionally, the front end of the diverging section shell and the converging section shell are connected through a limiting assembly, the limiting assembly comprises a limiting snap ring and a first locking bolt, the limiting snap ring is sleeved on the outside of the diverging section shell, and the first locking bolt vertically penetrates the limiting snap ring along the diameter direction of the oscillating nozzle and is threadedly connected with the diverging section shell.

[0011] Optionally, an anti-torsion assembly is arranged between the subsonic ball socket fixed body and the supersonic diverging oscillating body, for resisting torsional deformation of the subsonic ball socket fixed body and the supersonic diverging oscillating body.

[0012] Optionally, the anti-torsion assembly is a wave-shaped sleeve structure, one end of the anti-torsion assembly is arranged on the top side of the subsonic ball socket fixed body, and the other end of the anti-torsion assembly is arranged on the top side of the supersonic diverging oscillating body.

[0013] Optionally, the inner side surface of the throat lining is an inwardly convex arc surface.

[0014] Optionally, the front end of the subsonic ball socket fixed body and the tail end of the supersonic diverging oscillating body are arranged in an outwardly expanded manner.

[0015] The beneficial effects of the utility model lie in that: in the working process of the rocket engine, the rocket control brake is braked to drive the diverging section of the oscillating nozzle to swing, generate lateral thrust, and the anti-torsion assembly avoids circumferential deflection of the oscillating nozzle when swinging along the axis, so as to increase the torsion resistance of the ball socket oscillating nozzle in the swinging process, the anti-torsion assembly has the function of expansion and contraction in the axial direction, the swing nozzle has small driving torque, can be driven by a small brake, saves space and energy, the separation line is located in the region close to the supersonic diverging oscillating body, the shock wave is formed at the protruding part of the tail ring in the swinging process of the diverging section, the lateral force is amplified, the shock wave enhancement effect is realized, and the aerodynamic performance of the oscillating nozzle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole structure schematic view of the utility model;

[0017] Fig. 2 It is a structure schematic view of the subsonic ball socket fixed body of the utility model;

[0018] Fig. 3 It is a structure schematic view of the supersonic diverging oscillating body of the utility model.

[0019] The signs are represented as:

[0020] 11, convergent section shell; 12, convergent section liner; 13, throat liner; 21, divergent section shell; 22, tail ring; 23, divergent section liner; 31, brake; 32, lug; 41, limit snap ring; 42, first locking bolt; 5, torsion resistance assembly; 6, sealing ring; 71, positioning block; 72, second locking bolt. DETAILED DESCRIPTION

[0021] Please refer to Figs. 1-3 The utility model provides a technical scheme:

[0022] A supersonic separation line ball socket swing nozzle, including subsonic ball socket fixed body, supersonic expansion swing body and brake assembly, subsonic ball socket fixed body is sequentially provided with convergent section shell 11, convergent section liner 12 and throat liner 13 from top to bottom, and convergent section shell 11, convergent section liner 12 and throat liner 13 are bonded by adhesive, and the tail end of subsonic ball socket fixed body is provided as spherical surface structure, in the embodiment, convergent section shell 11 is structural steel machine plus shape, and the heat treatment hardness is greater than or equal to 42HRC, and the surface roughness is less than or equal to Ra1.6;Convergent section liner 12 is high silica cloth-carbon fiber cloth / phenolic compound after winding forming machine plus shape, and throat liner 13 is three high graphite or C / C composite material machine plus shape, and the inner side of throat liner 13 is the arc surface that protrudes inwards.

[0023] Supersonic expansion swing body is composed of divergent section and tail ring 22 arranged at the bottom of divergent section, and divergent section includes divergent section shell 21 and divergent section liner 23 arranged at the bottom of divergent section shell 21, and divergent section shell 21, divergent section liner 23 and tail ring 22 are bonded by adhesive;Tail ring 22 is arranged between the tail end of subsonic ball socket fixed body, the bottom side of divergent section shell 21 and the front side of divergent section liner 23, separation line is located in the region close to supersonic expansion swing body, makes the shock wave at protruding part of tail ring 22 in the swing process of divergent section, amplifies lateral force, realizes shock wave enhancement effect, improves the aerodynamic performance of swing nozzle, in the embodiment, divergent section shell 21 is metal machine part, tail ring 22 is 2.5D carbon fiber woven reinforced resin composite material machine plus shape, divergent section liner 23 is high silica cloth-carbon fiber cloth / phenolic compound after winding forming machine plus shape, and the tail end of subsonic ball socket fixed body and supersonic expansion swing body extend outward and are provided with lateral surface, and divergent section shell 21 and the spherical surface of subsonic fixed body are sealedly connected through sealing ring 6.

[0024] The brake assembly is arranged between the subsonic ball socket fixed body and the supersonic expansion swing body, drives the expansion section of the swing nozzle to swing, and comprises a brake 31 and two ears 32.

[0025] The front end of the expansion section shell 21 and the top side of the converging section shell 11 are connected through a limiting assembly, the limiting assembly comprises a limiting snap ring 41 and a first locking bolt 42, the limiting snap ring 41 is sleeved on the outside of the expansion section shell 21, the limiting snap ring 41 is arranged at the front end of the expansion section shell 21, the first locking bolt 42 vertically penetrates the limiting snap ring 41 along the diameter direction of the swing nozzle and is threadedly connected with the expansion section shell 21, the first locking bolt 42 is abutted against the spherical surface of the converging section shell 11, and in the embodiment, the limiting snap ring 41 is made of modified polytetrafluoroethylene material by machining, so that the circumferential deflection of the swing nozzle when swinging along the axis is avoided, and the torsional resistance of the ball socket swing nozzle in the swinging process is increased.

[0026] The anti-torsion assembly 5 is arranged between the subsonic ball socket fixed body and the supersonic expansion swing body, is used for resisting the torsional deformation of the subsonic ball socket fixed body and the supersonic expansion swing body, and is in a wave-shaped sleeve structure, in the embodiment, is integrally formed by using a fiber reinforced rubber material, has good torsional stiffness, the top of the converging section shell 11 is fixedly connected with a positioning block 71, one end of the anti-torsion assembly 5 is detachably connected with the positioning block 71 through a second locking bolt 72, the second locking bolt 72 penetrates the anti-torsion assembly 5 along the vertical direction and is threadedly connected with the positioning block 71, so that the anti-torsion assembly 5 is abutted against the top side of the converging section shell 11, and the other end of the anti-torsion assembly 5 is bonded with the limiting snap ring 41.

[0027] Finally, it should be noted that: the above only for the preferred examples of the utility model have described, and are not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or equivalent replacement is made to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A supersonic separating linear ball socket swing nozzle characterized by, The application relates to a swingable nozzle, which comprises a subsonic ball socket fixed body, a supersonic expansion swing body and a brake assembly, wherein the subsonic ball socket fixed body is sequentially provided with a converging section shell (11), a converging section lining (12) and a throat lining (13) from top to bottom, the converging section shell (11), the converging section lining (12) and the throat lining (13) are bonded through an adhesive, the tail end of the subsonic ball socket fixed body is provided with a spherical surface structure, the supersonic expansion swing body is composed of an expansion section and a tail ring (22) arranged at the bottom of the expansion section, the expansion section is sealingly connected with the tail ring (22) and the tail end of the subsonic ball socket fixed body, a separation line is located in the region close to the supersonic expansion swing body, and the brake assembly is arranged between the subsonic ball socket fixed body and the supersonic expansion swing body to drive the expansion section of the swingable nozzle to swing.

2. The supersonic separating plug-nose swing-jet nozzle of claim 1, wherein The expansion section comprises an expansion section shell (21) and an expansion section lining (23) arranged at the bottom of the expansion section shell (21), and the front end of the expansion section lining (23) is connected with the tail ring (22).

3. The supersonic separating plug nozzle of claim 2, wherein The expansion section shell (21), the expansion section lining (23) and the tail ring (22) are bonded through an adhesive.

4. The supersonic separating plug nozzle of claim 3, wherein The brake assembly comprises a brake (31) and two supporting ears (32), the two supporting ears (32) are arranged on the converging section shell (11) and the expansion section shell (21) respectively, the two ends of the brake (31) are rotationally connected with the two supporting ears (32) respectively, and the rotation axes between the two ends of the brake (31) and the supporting ears (32) are arranged horizontally along the diameter direction of the swingable nozzle.

5. The supersonic separating plug nozzle of claim 2 wherein, The front end of the expansion section shell (21) is connected with the converging section shell (11) through a limiting assembly, the limiting assembly comprises a limiting snap ring (41) and a first locking bolt (42), the limiting snap ring (41) is sleeved on the outer side of the expansion section shell (21), and the first locking bolt (42) vertically penetrates the limiting snap ring (41) along the diameter direction of the swingable nozzle and is threadedly connected with the expansion section shell (21).

6. The supersonic separating plug nozzle of claim 1 wherein, An anti-torsion assembly (5) is arranged between the subsonic ball socket fixed body and the supersonic expansion swing body, and is used for resisting the torsional deformation of the subsonic ball socket fixed body and the supersonic expansion swing body.

7. The supersonic separating plug nozzle of claim 6 wherein, The anti-torsion assembly (5) is a wave-shaped sleeve structure, one end of the anti-torsion assembly (5) is arranged on the top side of the subsonic ball socket fixed body, and the other end of the anti-torsion assembly (5) is arranged on the top side of the supersonic expansion swing body.

8. The supersonic separating plug nozzle of claim 1 wherein, The inner side of the throat lining (13) is an inwardly convex arc surface.

9. The supersonic separating plug nozzle of claim 1 wherein, The front end of the subsonic ball socket fixed body and the tail end of the supersonic expansion swing body are outwardly extended.

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