A rocket fairing and a forming method thereof

Abstract

The present invention relates to the field of fairings, specifically to a rocket fairing, and also to a method for forming a rocket fairing. It includes two shells, and a protective rod is fixedly connected to the inner walls of the two shells. A support piece is fixedly connected to the side of the protective rod away from the shell. Above the support piece, there is a main frame, and a pressing block is arranged inside the main frame. By the combined use of a slide rail and a slider, when the rocket accelerates upward, the pressing block becomes overweight, thereby squeezing the pressing block, causing the pressing block to move in the direction of the telescopic rod. The inclined rod can be used to press and support both ends of the first arc piece, preventing the cylindrical section of the shell from deforming. The front conical section of the shell can be pressed and supported by the support rod and the second arc piece, so that the support is more comprehensive, the shell is not easily deformed, and the structure is simple. Compared with the existing rocket fairings, the overall weight of the fairing is reduced, and the support effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of fairings, and more particularly to a rocket fairing and a method for forming a rocket fairing. Background Art

[0002] A fairing is used to protect a satellite and other payloads from the harmful environments such as aerodynamic force, aerodynamic heating, and acoustic vibration, and is an important part of a launch vehicle. A satellite fairing generally has a clamshell (two - half) structure and consists of a nose, a front cone section, a cylindrical section, an inverted cone section, and longitudinal and transverse separation mechanisms, etc. When the launch vehicle flies in the atmosphere, the satellite fairing is used to protect the satellite and other payloads from the harmful environments such as aerodynamic force, aerodynamic heating, and acoustic vibration. It is an important part of the launch vehicle. In the aspect of missiles, it is an inevitable product of the multi - warhead of missiles.

[0003] The patent with the publication number CN116625178A discloses a modular fairing, which includes two separable half - fairings. The two half - fairings are connected by a separation structure on the intermediate separation surface. The central axis of the fairing is located in the plane where the separation surface of the two half - fairings is located. The two half - fairings are combined to form an internal envelope space. The half - fairing is sequentially provided with a nose, a front cone, a cylindrical section, and a transition section along the central axis direction from top to bottom. The nose and the front cone are connected by a first connection component; the front cone and the cylindrical section are connected by a second connection component; the cylindrical section and the transition section are connected by a third connection component. The embodiments of the present application provide different basic types of fairings. Each basic type is split into independent modules such as a nose, a front cone, a cylindrical section, and a transition section, and different payload envelope requirements of the fairing are realized in the form of free combination. It solves the problem that the model can flexibly and quickly adapt to the different space envelopes of payloads, and improves the adaptability of the fairing when the space launch vehicle launches different payloads.

[0004] However, when the modular fairing provided in the above - mentioned technical solution is actually used, there are still many disadvantages. For example, the thickness of the fairing is small, and when the rocket ascends, due to the acceleration, the wind pressure on the outer wall of the fairing is large, which easily causes the fairing to deform. The existing fairing is supported by installing a honeycomb - type structural board on the inner wall, which greatly increases the weight of the fairing and has a poor supporting effect. Summary of the Invention

[0005] In view of the problems existing in the prior art, a rocket fairing is provided. By the combined use of a slide rail and a slider, when the rocket accelerates upward, the downward pressing block becomes overweight, thereby squeezing the pressing block, causing the pressing block to move in the direction of the telescopic rod. The inclined rod can press and support both ends of the first arc-shaped piece to prevent the cylindrical section of the shell from deforming. The support rod and the second arc-shaped piece can press and support the front conical section of the shell, making the support more comprehensive, the shell not easily deformed, with a simple structure. Compared with the existing rocket fairing, the overall weight of the fairing is reduced and the support effect is improved.

[0006] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0007] The present invention provides a progressive lens, which is applied to a processing device. The progressive lens is composed of a photochromic resin lens, a progressive front polarizing film, a liquid crystal cell, a progressive rear polarizing film, and a transparent resin lens. The materials are stacked in sequence and bonded and cured with each other using a transparent adhesive.

[0008] The present invention also provides a rocket fairing, which includes two shells. A protective rod is fixedly connected to the inner walls of the two shells. A support piece is fixedly connected to the side of the protective rod away from the shell. A main frame is provided above the support piece, and a lifting mechanism for adjusting the height of the main frame is provided between the main frame and the support piece. A downward pressing block is arranged inside the main frame. A pressing block is arranged on one side of the downward pressing block, and the inclined surface of the downward pressing block is attached to the inclined surface on one side of the pressing block. A slide rail for the downward pressing block to slide up and down is also arranged on the inner wall of the main frame. A sliding connection is formed between the downward pressing block and the slide rail. A telescopic rod is fixedly connected to the side of the pressing block away from the downward pressing block, and the other end of the telescopic rod is fixedly connected to a first arc-shaped piece, and the first arc-shaped piece is fixedly connected to the protective rod. Inclined rods are fixedly connected to both sides of the pressing block, and the inclined rods are fixedly connected to the first arc-shaped piece. An opening for the inclined rod to move is also opened at the position corresponding to the main frame and the inclined rod. A support rod is fixedly connected to the top inclined surface of the pressing block, and a second arc-shaped piece is fixedly connected to the top of the support rod, and the second arc-shaped piece is attached to the inner wall of the top of the shell.

[0009] Preferably, the shell is composed of a front conical section, a cylindrical section, and an inverted conical section. Connection buckles are fixedly connected to the edges of the two shells, and the two shells are fixed by connection buckles and expansion bolts. The shell is spliced by a plurality of arc-shaped plates.

[0010] Preferably, connection arc openings are fixedly connected to the bottoms of the inverted conical sections of the two shells, a card is fixedly connected to the inner wall of the connection arc opening, a bayonet is opened on the card, and circular holes are opened at the end of the connection arc opening in an arc-shaped and evenly distributed manner.

[0011] Preferably, semi-cylindrical bars are fixedly connected to the outer sides of the two shells, and the semi-cylindrical bars are evenly arranged in an arc shape on the outer side of the cylindrical section of the shell. The two ends of the semi-cylindrical bars are streamlined structures, and an integrated structure is formed between the semi-cylindrical bars and the shells.

[0012] Preferably, two wing plates are provided in the middle of the cylindrical section, and side plates are provided on both sides of the wing plates. The side plates are fixedly connected to the cylindrical section of the shell. The wing plates form a rotating structure with the side plates through a rotating shaft. At the same time, a magnet sheet is provided above the wing plates, and the magnet sheet is fixedly connected to the cylindrical section of the shell. The wing plates can be attached to the magnet sheet when rotated to a vertical state, and circular holes are also formed in the wing plates in a rectangular array distribution.

[0013] Preferably, the protective bars are evenly distributed in an arc shape on the inner side of the cylindrical section of the shell. The side surface of the protective bars is a trapezoidal structure, and the bottom surface of the trapezoidal structure is in contact with the inner wall of the cylindrical section. A notch is provided on the side of the protective bar close to the shell.

[0014] Preferably, a first telescopic column is fixedly connected inside the notch of the protective bar. A sticker is fixedly connected to the end of the first telescopic column. A first spring is also provided outside the first telescopic column. The first spring is fixedly connected to both the sticker and the protective bar, and the first spring is sleeved on the first telescopic column.

[0015] Preferably, the original length of the first spring is equal to the maximum stretching length of the first telescopic column. The first telescopic columns are evenly distributed about the central axis of the protective bar. The side of the sticker away from the first telescopic column is a convex arc surface structure, and the arc surface of the sticker is in contact with the inner wall of the cylindrical section of the shell.

[0016] Preferably, a second telescopic column is fixedly connected to the side of the support piece away from the protective bar. A push plate is fixedly connected to the end of the second telescopic column. A second spring is also sleeved outside the second telescopic column. The two ends of the second spring are fixedly connected to the push plate and the support piece respectively.

[0017] A method for forming a rocket fairing includes the following steps:

[0018] S1. Use an external 3D printer to print the arc-shaped sheet plates that make up the shell. After printing, splice multiple arc-shaped sheet plates into a shell, and then coat the outer side of the shell with a thermal protection layer to complete the production of the shell. Use a D printer to print the connecting arc openings. After printing, drill the ends of the connecting arc openings, and weld the cards to the connecting arc openings to complete the production of the connecting arc openings. Finally, fix the completed shell to the connecting arc openings.

[0019] S2. Connect the wing plates to the side plates through a rotating shaft, and then fixedly install the installed side plates, wing plates and magnet sheets on the shell to complete the manufacture of the outer frame of the rocket fairing. The circular holes on the wing plates can be completed by CNC machining to ensure the accuracy of the wing plates.

[0020] S3. Fix the first telescopic column fixedly in the notch of the protective rod, then sleeved the first spring on the first telescopic column, fix the sticker plate to the first telescopic column, connect the two ends of the first spring to the sticker plate and the protective rod respectively. It is best to weld the installed protective rod to the housing.

[0021] S4. Fix the second telescopic column to the support piece. Similarly, sleeve the second spring on the second telescopic column. Then, after installing the push plate, also fix the second spring to the push plate and the support piece. Finally, connect the installed support piece to the protective rod.

[0022] S5. Install the pressing block into the main frame containing the lower pressing block. It should be noted that before installing the pressing block, it is necessary to check whether the lower pressing block can slide up and down in the main frame. At the same time, when installing the pressing block, ensure that the inclined surface of the pressing block fits with the inclined surface of the lower pressing block, and the pressing block can move horizontally in the main frame. Connect the pressing block to the first arc piece through the telescopic rod. After installing the pressing block, fix the support rod and the inclined rod to the pressing block. It should be noted that before installing the support rod, it is necessary to fix the second arc piece to the support rod, and then connect the installed main frame to the lifting mechanism. Adjust the height of the main frame through the lifting mechanism so that the top surface of the second arc piece fits with the inner wall of the front conical section of the housing. Finally, weld between the first arc piece and the protective rod to complete the installation of the internal structure of the housing.

[0023] S6. Fix the two manufactured housings through the connecting buckle and the expansion bolt, so as to assemble the two housings and complete the manufacturing and shaping of the entire rocket fairing.

[0024] The beneficial effects of this application compared with the prior art are as follows:

[0025] 1. Through the cooperation of the slide rail and the slider, when the rocket accelerates upward, the lower pressing block becomes overweight, thereby squeezing the pressing block, causing the pressing block to move in the direction of the telescopic rod. The inclined rod can press and support both ends of the first arc piece to prevent the cylindrical section of the housing from deforming. The support rod and the second arc piece can press and support the front conical section of the housing, so that the support is more comprehensive, the housing is not easily deformed, and the structure is simple. Compared with the existing rocket fairing, the overall weight of the fairing is reduced and the support effect is improved.

[0026] 2. Through the setting of the semi-cylindrical strips, the external strength of the housing can be enhanced, further improving the compressive capacity of this fairing. Moreover, the streamlined structure of the semi-cylindrical strips can reduce resistance during the rocket's ascent. Through the elastic force of the first spring and the use of the attaching plate, when the housing is squeezed, the spring will exert a squeezing effect on the outer wall of the housing. The arc-shaped arrangement of the protective rods, combined with the longitudinal uniform distribution of the first telescopic columns and the first springs, can uniformly support the cylindrical section of the housing, further enhancing the support effect.

[0027] 3. Through the elastic force of the second spring and the use of the second telescopic column and the push plate, an outward thrust can be generated on both sides of the housing, enabling the two housings of this fairing to be quickly separated, facilitating the detachment of this fairing. The wing plates can ensure the stability of the fairing during ascending flight. The round holes on the wing plates can reduce the resistance received by the wing plates. The wing plates are attached to the side of the housing through magnetic sheets. When the fairing ascends, as the temperature rises, the magnetism of the magnetic sheets disappears, and by the rotation of the rotating shaft, the wing plates can be automatically unfolded. Brief Description of the Drawings

[0028] Figure 1 is an overall three-dimensional structural schematic diagram of a rocket fairing;

[0029] Figure 2 is an internal three-dimensional structural schematic diagram of the housing of a rocket fairing;

[0030] Figure 3 is a three-dimensional structural schematic diagram of the second arc piece of a rocket fairing;

[0031] Figure 4 is a three-dimensional structural schematic diagram of the main frame of a rocket fairing;

[0032] Figure 5 is a three-dimensional structural schematic diagram of the lower pressing block of a rocket fairing;

[0033] Figure 6 is an overall top view structural schematic diagram of a rocket fairing;

[0034] Figure 7 is an overall bottom view structural schematic diagram of a rocket fairing;

[0035] Figure 8 is a three-dimensional structural schematic diagram of the arrangement of the protective rods of a rocket fairing;

[0036] Figure 9 is a three-dimensional structural schematic diagram of the protective rod of a rocket fairing;

[0037] Figure 10 is a three-dimensional structural schematic diagram of the support piece of a rocket fairing;

[0038] Figure 11 It is a schematic enlarged structure diagram of part A in a rocket fairing; Figure 1

[0039] Figure 12 It is a schematic enlarged structure diagram of part B in a rocket fairing; Figure 10

[0040] The reference numerals in the figure are as follows:

[0041] 1. Shell; 101. Front cone section; 102. Cylindrical section; 103. Inverted cone section; 2. Protection rod; 3. Support piece; 4. Main frame; 5. Lower pressing block; 6. Pressing block; 7. Slide rail; 8. Telescopic rod; 9. First arc piece; 10. Inclined rod; 11. Support rod; 12. Second arc piece; 13. Connection buckle; 14. Connection arc opening; 15. Card; 16. Semi-cylindrical bar; 17. Wing plate; 18. Side plate; 19. Rotating shaft; 20. Magnet sheet; 21. First telescopic column; 22. Attached plate; 23. First spring; 24. Second telescopic column; 25. Pushing plate; 26. Second spring; 27. Lifting mechanism. Specific implementation manners

[0042] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0043] A method for forming a rocket fairing includes the following steps:

[0044] S1. Use an external 3D printer to print the arc-shaped sheet plates that make up the shell 1. After printing, splice multiple arc-shaped sheet plates into the shell 1, and then coat the outer side of the shell 1 with a thermal protection layer to complete the production of the shell 1. Use the 3D printer to print the connection arc opening 14. After printing, drill the end of the connection arc opening 14, and weld the card 15 to the connection arc opening 14 to complete the production of the connection arc opening 14. Finally, fix the completed shell 1 and the connection arc opening 14.

[0045] S2. Connect the wing plate 17 and the side plate 18 through the rotating shaft 19, and then fixedly install the installed side plate 18, wing plate 17 and magnet sheet 20 on the shell 1 to complete the manufacture of the outer frame of the rocket fairing. The round holes on the wing plate 17 can be completed by CNC machining to ensure the accuracy of the wing plate 17.

[0046] S3. Fix the first telescopic column 21 in the notch of the protection rod 2, then sleeved the first spring 23 on the first telescopic column 21, fix the attached plate 22 to the first telescopic column 21, and connect the two ends of the first spring 23 to the attached plate 22 and the protection rod 2 respectively. Finally, weld the installed protection rod 2 and the shell 1. ​​

[0047] S4. Fix the second telescopic column 24 to the support piece 3. Similarly, slip the second spring 26 over the second telescopic column 24. Then, after installing the push plate 25, fix the second spring 26 to the push plate 25 and the support piece 3 as well. Finally, connect the installed support piece 3 to the protective rod 2.

[0048] S5. Insert the pressing block 6 into the main frame 4 containing the lower pressing block 5. It should be noted that before inserting the pressing block 6, check whether the lower pressing block 5 can slide up and down in the main frame 4. Meanwhile, when inserting the pressing block 6, ensure that the inclined surface of the pressing block 6 fits with the inclined surface of the lower pressing block 5, and the pressing block 6 can move horizontally in the main frame 4. Connect the pressing block 6 to the first arc piece 9 through the telescopic rod 8. After inserting the pressing block 6, fix the support rod 11 and the inclined rod 10 to the pressing block 6. It should be noted that before installing the support rod 11, fix the second arc piece 12 to the support rod 11. Then connect the completed main frame 4 to the lifting mechanism 27. Adjust the height of the main frame 4 through the lifting mechanism 27 so that the top surface of the second arc piece 12 fits with the inner wall of the front conical section 101 of the housing 1. Finally, weld between the first arc piece 9 and the protective rod 2 to complete the installation of the internal structure of the housing 1.

[0049] S6. Fix the two manufactured housings 1 through the connection buckle 13 and expansion bolts, thereby assembling the two housings 1 to complete the manufacturing and forming of the entire rocket fairing.

[0050] Assemble the formed rocket fairing and the rocket through the above rocket fairing forming method.

[0051] Refer to Figures 1 - 12 As shown, in this embodiment, a rocket fairing includes two housings 1. The housing 1 is composed of a front conical section 101, a cylindrical section 102, and an inverted conical section 103, so that the housing 1 has a streamlined structure, which is convenient for the rocket to reduce the resistance suffered by the fairing when ascending. Connection buckles 13 are fixedly connected to the edges of the two housings 1, and the two housings 1 are fixed through the connection buckle 13 and expansion bolts. Connect the connection buckle 13 through the expansion bolts. When the rocket fairing needs to be detached, the expansion bolts are exploded by the driving device on the rocket to facilitate the detachment of the rocket fairing. The housing 1 is spliced by a plurality of arc-shaped plates. Further, connection arc openings 14 are fixedly connected to the bottoms of the inverted conical sections 103 of the two housings 1, and a card 15 is fixedly connected to the inner wall of the connection arc opening 14. A bayonet is provided on the card 15, and circular holes are provided at the ends of the connection arc opening 14 and are evenly distributed in an arc shape. By splicing the two connection arc openings 14 into a circular tube structure, the rocket can be inserted into the fairing. The bayonet on the card 15 can limit the position of the rocket when the rocket enters the fairing to ensure the accurate position of the rocket.

[0052] Further, two wing plates 17 are provided in the middle of the cylindrical section 102, and side plates 18 are provided on both sides of the wing plates 17. The side plates 18 are fixedly connected to the cylindrical section 102 of the housing 1. The wing plates 17 and the side plates 18 form a rotating structure through a rotating shaft 19. At the same time, a magnet sheet 20 is provided above the wing plates 17, and the magnet sheet 20 is fixedly connected to the cylindrical section 102 of the housing 1. When the wing plates 17 rotate to the vertical state, they can be attached to the magnet sheet 20. Rectangular array distribution of round holes is also provided on the wing plates 17. The wing plates 17 are attached to the side of the housing 1 through the magnet sheet 20. When the fairing rises, as the temperature increases, the magnetism of the magnet sheet 20 disappears, and by using the rotation of the rotating shaft 19, the wing plates 17 can be automatically unfolded.

[0053] On the inner wall of the two shells 1, a protective rod 2 is fixedly connected. On the side of the protective rod 2 away from the shell 1, a support piece 3 is fixedly connected. Above the support piece 3, there is a main frame 4. And between the main frame 4 and the support piece 3, there is a lifting mechanism 27 for adjusting the height of the main frame 4. The lifting mechanism 27 can be any one of a lifting rod or an electric push rod. Inside the main frame 4, there is a pressing block 5. On one side of the pressing block 5, there is a pressing block 6. And the inclined surface of the pressing block 5 is in contact with the inclined surface on one side of the pressing block 6. On the inner wall of the main frame 4, there is also a slide rail 7 for the pressing block 5 to slide up and down. The pressing block 5 and the slide rail 7 form a sliding connection. On the side of the pressing block 6 away from the pressing block 5, a telescopic rod 8 is fixedly connected. And the other end of the telescopic rod 8 is fixedly connected to a first arc piece 9. The first arc piece 9 is fixedly connected to the protective rod 2. On both sides of the pressing block 6, inclined rods 10 are fixedly connected. The inclined rods 10 are fixedly connected to the first arc piece 9. At the position corresponding to the inclined rods 10 on the main frame 4, there are also openings for the inclined rods 10 to move. On the top inclined surface of the pressing block 6, a support rod 11 is fixedly connected. On the top of the support rod 11, a second arc piece 12 is fixedly connected. And the second arc piece 12 is in contact with the inner wall of the top of the shell 1. Through the cooperation of the slide rail 7 and the slider, when the rocket accelerates upward, the pressing block 5 will be overweight, so as to squeeze the pressing block 6, making the pressing block 6 move in the direction of the telescopic rod 8. The inclined rods 10 can be used to press and support both ends of the first arc piece 9, preventing the cylindrical section 102 of the shell 1 from deforming. Through the support rod 11 and the second arc piece 12, the front conical section 101 of the shell 1 can be pressed and supported, so that the support is more comprehensive, making the shell 1 not easy to deform, and the structure is simple. Compared with the existing rocket fairing, the overall weight of the fairing is reduced, and the support effect is improved. Further, on the outer sides of the two shells 1, semi-cylindrical strips 16 are fixedly connected. And the semi-cylindrical strips 16 are evenly arranged in an arc shape on the outside of the cylindrical section 102 of the shell 1. The two ends of the semi-cylindrical strip 16 are of a streamlined structure. And the semi-cylindrical strip 16 and the shell 1 form an integrated structure. The setting of the semi-cylindrical strip 16 can improve the external strength of the shell 1, further improving the compressive capacity of this fairing. And the streamlined structure of the semi-cylindrical strip 16 can reduce the resistance when the rocket ascends.

[0054] In this embodiment, the protective rods 2 are evenly distributed in an arc shape inside the cylindrical section 102 of the housing 1. The side surface of the protective rod 2 is a trapezoidal structure, and the bottom surface of the trapezoidal structure is in contact with the inner wall of the cylindrical section 102. A notch is provided on the side of the protective rod 2 close to the housing 1. The trapezoidal structure of the protective rod 2 gives it strong supporting ability and supports the inner wall of the housing 1. Further, a first telescopic column 21 is fixedly connected inside the notch of the protective rod 2. The end of the first telescopic column 21 is fixedly connected with a sticking plate 22. A first spring 23 is also arranged outside the first telescopic column 21. The first spring 23 is fixedly connected to both the sticking plate 22 and the protective rod 2, and the first spring 23 is sleeved on the first telescopic column 21. Further, the original length of the first spring 23 is equal to the maximum stretching length of the first telescopic column 21, and the first telescopic columns 21 are evenly distributed about the central axis of the protective rod 2. The side of the sticking plate 22 away from the first telescopic column 21 is a convex arc surface structure, and the arc surface of the sticking plate 22 fits with the inner wall of the cylindrical section 102 of the housing 1. Through the elastic force of the first spring 23 and the use of the sticking plate 22, when the housing 1 is squeezed, the first spring 23 will exert an extrusion force on the outer wall of the housing 1. The arc arrangement of the protective rods 2, combined with the longitudinal uniform distribution of the first telescopic columns 21 and the first springs 23, can evenly support the cylindrical section 102 of the housing 1 and further enhance the support effect.

[0055] In this embodiment, a second telescopic column 24 is fixedly connected to the side of the support piece 3 away from the protective rod 2. The end of the second telescopic column 24 is fixedly connected with a push plate 25. A second spring 26 is also sleeved outside the second telescopic column 24. The two ends of the second spring 26 are fixedly connected to the push plate 25 and the support piece 3 respectively. When the expansion bolt explodes and this fairing is about to separate from the rocket, through the elastic force of the second spring 26 and the use of the second telescopic column 24 and the push plate 25, an outward thrust can be generated on both sides of the housing 1, so that the two housings 1 of this fairing can be quickly separated, facilitating the detachment of this fairing.

[0056] Working principle: When using this rocket fairing, first, the two shells 1 are spliced through the connecting buckle 13 and expansion bolts. After the splicing is completed, it is installed in the installation equipment. By using the external installation equipment, the rocket can be loaded into the interior of the shell 1 through the connecting arc opening 14. The bayonet of the card 15 can limit the position of the rocket and prevent the rocket from shifting during installation. By using the round hole on the connecting arc opening 14 and cooperating with the external expansion bolt, the rocket can be fixed to this fairing to complete the installation of the fairing. When the rocket enters the interior of the fairing, it squeezes the push plate 25. By cooperating with the use of the second telescopic column 24, the second spring 26 is compressed. The wing plate 17 can ensure the stability of the fairing during ascending flight. The round holes on the wing plate 17 can reduce the resistance received by the wing plate 17. The wing plate 17 is attached to the side of the shell 1 through the magnet sheet 20. When the fairing ascends, as the temperature rises, the magnetism of the magnet sheet 20 disappears, and by using the rotation of the rotating shaft 19, the wing plate 17 can be automatically unfolded.

[0057] The first arc piece 9 is attached to the side of the cylindrical section 102 of the shell 1. By using the lifting mechanism 27, the second arc piece 12 can be attached to the front conical section 101 of the shell 1. Through the cooperation of the slide rail 7 and the slider, when the rocket accelerates upward, the lower pressing block 5 becomes overweight, thereby squeezing the pressing block 6 and causing the pressing block 6 to move in the direction of the telescopic rod 8. The inclined rod 10 can press and support both ends of the first arc piece 9 to prevent the cylindrical section 102 of the shell 1 from deforming. The support rod 11 and the second arc piece 12 can press and support the front conical section 101 of the shell 1, making the support more comprehensive, making the shell 1 not easily deformed, and having a simple structure. Compared with the existing rocket fairing, the overall weight of the fairing is reduced, and the support effect is improved. The setting of the semi-cylindrical strip 16 can enhance the external strength of the shell 1 and further improve the compressive capacity of this fairing. Moreover, the streamlined structure of the semi-cylindrical strip 16 can reduce the resistance when the rocket ascends. Through the elastic force of the first spring 23 and the cooperation of the attaching plate 22, when the shell 1 is squeezed, the first spring 23 will exert an extrusion effect on the outer wall of the shell 1. The arc-shaped arrangement of the protective rods 2, combined with the longitudinal uniform distribution of the first telescopic column 21 and the first spring 23, can evenly support the cylindrical section 102 of the shell 1 and further enhance the support effect. When this fairing is about to separate from the rocket, through the elastic force of the second spring 26 and the cooperation of the second telescopic column 24 and the push plate 25, an outward thrust can be generated on both sides of the shell 1, enabling the two shells 1 of this fairing to be quickly separated, facilitating the detachment of this fairing.

[0058] The above embodiments merely represent one or several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention shall be subject to the appended claims.

Claims

1. A rocket fairing, comprising two shells (1), characterized in that, The inner walls of the two said shells (1) are fixedly connected with protective rods (2). One side of the protective rod (2) away from the shell (1) is fixedly connected with a support piece (3). Above the support piece (3) is provided a main frame (4), and between the main frame (4) and the support piece (3) is provided a lifting mechanism (27) for adjusting the height of the main frame (4). Inside the main frame (4) is provided a pressing block (5). One side of the pressing block (5) is provided with a pressing block (6), and the inclined surface of the pressing block (5) is in contact with the inclined surface on one side of the pressing block (6). The inner wall of the main frame (4) is also provided with a slide rail (7) for the pressing block (5) to slide up and down. The pressing block (5) and the slide rail (7) form a sliding connection. One side of the pressing block (6) away from the pressing block (5) is fixedly connected with a telescopic rod (8), and the other end of the telescopic rod (8) is fixedly connected with a first arc piece (9). The first arc piece (9) is fixedly connected with the protective rod (2). Both sides of the pressing block (6) are fixedly connected with inclined rods (10). The inclined rods (10) are fixedly connected with the first arc piece (9). At the position corresponding to the inclined rods (10) on the main frame (4), there are also openings for the inclined rods (10) to move. The top inclined surface of the pressing block (6) is fixedly connected with a support rod (11). The top of the support rod (11) is fixedly connected with a second arc piece (12), and the second arc piece (12) is in contact with the inner wall of the top of the shell (1).

2. The rocket fairing according to claim 1, characterized in that, The said shell (1) is composed of a front conical section (101), a cylindrical section (102) and an inverted conical section (103). The edges of the two shells (1) are both fixedly connected with connection buckles (13), and the two shells (1) are fixed by the connection buckles (13) and expansion bolts. The shell (1) is spliced by a plurality of arc-shaped plates.

3. The rocket fairing according to claim 2, characterized in that, At the bottom ends of the inverted conical sections (103) of the two said shells (1), there are fixedly connected connection arc openings (14). The inner wall of the connection arc opening (14) is fixedly connected with a card (15). There is a bayonet on the card (15). At the end of the connection arc opening (14), there are circular holes evenly distributed in an arc shape.

4. The rocket fairing according to claim 3, characterized in that, On the outside of the two said shells (1), there are fixedly connected semi-cylindrical strips (16). The semi-cylindrical strips (16) are evenly distributed in an arc shape on the outside of the cylindrical section (102) of the shell (1). The two ends of the semi-cylindrical strip (16) are of a streamlined structure, and the semi-cylindrical strip (16) and the shell (1) form an integral structure.

5. The rocket fairing according to claim 4, characterized in that, In the middle of the cylindrical section (102), there are two wing plates (17). On both sides of the wing plate (17), there are side plates (18). The side plates (18) are fixedly connected with the cylindrical section (102) of the shell (1). The wing plate (17) forms a rotating structure with the side plate (18) through a rotating shaft (19). At the same time, above the wing plate (17), there is a magnet sheet (20). The magnet sheet (20) is fixedly connected with the cylindrical section (102) of the shell (1). When the wing plate (17) rotates to the vertical state, it can be in contact with the magnet sheet (20). There are also circular holes evenly distributed in a rectangular array on the wing plate (17).

6. The rocket fairing according to claim 2, characterized in that, The protective rods (2) are evenly distributed in an arc shape inside the cylindrical section (102) of the housing (1). The side surface of the protective rod (2) is a trapezoidal structure, and the bottom surface of the trapezoidal structure is in contact with the inner wall of the cylindrical section (102). A notch is provided on the side of the protective rod (2) close to the housing (1).

7. The rocket fairing according to claim 6, characterized in that, A first telescopic column (21) is fixedly connected inside the notch of the protective rod (2). A sticker plate (22) is fixedly connected to the end of the first telescopic column (21). A first spring (23) is also arranged outside the first telescopic column (21). The first spring (23) is fixedly connected to both the sticker plate (22) and the protective rod (2), and the first spring (23) is sleeved on the first telescopic column (21).

8. The rocket fairing according to claim 7, characterized in that, The original length of the first spring (23) is equal to the maximum stretching length of the first telescopic column (21). The first telescopic columns (21) are evenly distributed about the central axis of the protective rod (2). The side of the sticker plate (22) away from the first telescopic column (21) is a convex arc surface structure, and the arc surface of the sticker plate (22) fits the inner wall of the cylindrical section (102) of the housing (1).

9. The rocket fairing according to claim 8, characterized in that, A second telescopic column (24) is fixedly connected to the side of the support piece (3) away from the protective rod (2). A push plate (25) is fixedly connected to the end of the second telescopic column (24). A second spring (26) is also sleeved outside the second telescopic column (24). The two ends of the second spring (26) are fixedly connected to the push plate (25) and the support piece (3) respectively.

10. A method for forming a rocket fairing, applied to the rocket fairing according to claim 9, characterized in that, Including the following steps: S1. Use an external 3D printer to print the arc-shaped sheet plates that make up the housing (1). After printing, splice multiple arc-shaped sheet plates into the housing (1), and then coat the outer side of the housing (1) with a thermal protection layer to complete the production of the housing (1). Use a 3D printer to print the connecting arc opening (14). After printing, drill the end of the connecting arc opening (14), and weld the card (15) to the connecting arc opening (14) to complete the production of the connecting arc opening (14). Finally, fix the produced housing (1) to the connecting arc opening (14). S2. Connect the wing plate (17) and the side plate (18) through the rotating shaft (19), and then fixedly install the installed side plate (18), wing plate (17) and magnet sheet (20) on the housing (1) to complete the manufacture of the outer frame of the rocket fairing. The round holes on the wing plate (17) can be completed by CNC machining to ensure the accuracy of the wing plate (17). S3. Fix the first telescopic column (21) inside the notch of the protective rod (2), then sleeve the first spring (23) on the first telescopic column (21), fix the sticker plate (22) to the first telescopic column (21), connect the two ends of the first spring (23) to the sticker plate (22) and the protective rod (2) respectively, and finally weld the installed protective rod (2) to the housing (1). S4. Fix the second telescopic column (24) to the support plate (3). Similarly, slip the second spring (26) over the second telescopic column (24). Then, after installing the push plate (25), fix the second spring (26) to the push plate (25) and the support plate (3). Finally, connect the installed support plate (3) to the protective rod (2). S5. Insert the pressing block (6) into the main frame (4) containing the lower pressing block (5). Before inserting the pressing block (6), check whether the lower pressing block (5) can slide up and down in the main frame (4). At the same time, when inserting the pressing block (6), ensure that the inclined surface of the pressing block (6) is in contact with the inclined surface of the lower pressing block (5), and the pressing block (6) can move horizontally in the main frame (4). Connect the pressing block (6) to the first arc-shaped piece (9) through the telescopic rod (8). After inserting the pressing block (6), fix the support rod (11) and the diagonal rod (10) to the pressing block (6). Before installing the support rod (11), fix the second arc-shaped piece (12) to the support rod (11). Then, connect the installed main frame (4) to the lifting mechanism (27). Adjust the height of the main frame (4) through the lifting mechanism (27) so that the top surface of the second arc-shaped piece (12) is in contact with the inner wall of the front conical section (101) of the housing (1). Finally, weld between the first arc-shaped piece (9) and the protective rod (2) to complete the installation of the internal structure of the housing (1). S6. Fix the two manufactured housings (1) through the connecting buckle (13) and expansion bolts, thereby assembling the two housings (1) to complete the manufacturing and shaping of the entire rocket fairing.

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