Split large-sized satellite fairing

Abstract

The present invention provides a split large-sized satellite fairing, which includes a spherical head section, a left composite curve section, a right composite curve section, a left composite straight cylinder section, and a right composite straight cylinder section; the left composite curve section and the right composite curve section are arranged in parallel at the rear end of the spherical head section, and the left composite straight cylinder section and the right composite straight cylinder section are respectively arranged at the rear ends of the left composite curve section and the right composite curve section; the spherical head section, the left composite curve section, the right composite curve section, the left composite straight cylinder section, and the right composite straight cylinder section are connected by fasteners to form a split fairing. The present invention forms a large-sized composite satellite fairing by connecting split structures, overcomes the need for large-sized heat treatment equipment for the forming of large-sized composite satellite fairings, and the split structure and connection method of the large-sized composite satellite fairing adopted effectively reduce the forming difficulty of the composite fairing body and greatly improve the deformation problem of the large-sized composite satellite fairing.

Description

Technical Field

[0001] The present invention relates to the technical field of satellite fairings, and specifically, to a split large-size satellite fairing. Background Art

[0002] The satellite fairing is located at the topmost end of the launch vehicle and is an important functional section for protecting the satellite and other payloads from harmful factors such as airflow, thermal environment, and acoustic vibration during the rocket flight. After the rocket flies through the atmosphere, it separates to ensure that the payload enters the orbit normally. As a semi-shell structure, the diameter and length of the satellite fairing need to meet the space requirements of the rocket payload.

[0003] With the improvement of the carrying capacity of the new generation of launch vehicles, multiple satellites in one launch have become the normal requirement of launch vehicles. The external dimensions of the satellite fairing have also increased accordingly, and the fairing body material has gradually been replaced by all-wave-transparent and lightweight composite materials instead of metal materials. Small-size composite fairings are mainly of a two-half structure, and the composite body and the metal frame are formed by integral co-curing. As the size of the composite body increases, the specifications of the heat treatment equipment required for integral curing increase accordingly, and the production cost of the fairing increases sharply. In addition, due to the different thermal expansion coefficients of the composite material and the metal frame in integral co-curing, there is a problem of fairing body deformation, and the larger the fairing body size, the greater the deformation.

[0004] Therefore, how to solve the problems of high forming difficulty and large deformation of large-size composite fairings with a diameter of 5 meters and above in the future is an urgent problem to be solved in this field.

[0005] The patent document with the publication number of CN115716344A discloses a hot pressing forming die for a rocket fairing and a forming method for a rocket fairing, including an upper die and a lower die. The upper die and the lower die are combined and enclosed inside to form a product cavity for forming the rocket fairing. A heating runner and a cooling runner are arranged inside the upper die and / or the lower die close to one side of the forming surface. The die can be heated by using the heating fluid medium flowing through the heating runner. At the same time, the die is cooled by using the cooling fluid medium flowing through the cooling runner, which is beneficial to improving the cooling efficiency and further improving the production efficiency of the rocket fairing. However, this solution is only applicable to small-size fairings. If it is used to manufacture large-size fairings, it will bring problems such as a sharp increase in production cost and fairing body deformation. Summary of the Invention

[0006] Aiming at the defects in the prior art, the purpose of the present invention is to provide a split large-size satellite fairing.

[0007] The split large-size satellite fairing provided by the present invention includes a spherical head section, a left composite curve section, a right composite curve section, a left composite straight cylinder section, and a right composite straight cylinder section;

[0008] The left composite curve segment and the right composite curve segment are arranged side by side at the rear end of the ball head segment, and the left composite straight cylinder segment and the right composite straight cylinder segment are respectively arranged at the rear ends of the left composite curve segment and the right composite curve segment;

[0009] The ball head segment, the left composite curve segment, the right composite curve segment, the left composite straight cylinder segment and the right composite straight cylinder segment are connected by fasteners to form a split fairing.

[0010] Preferably, the left composite curve segment, the right composite curve segment, the left composite straight cylinder segment and the right composite straight cylinder segment all include a composite cover body and a metal frame adhesively screwed to the edge of the composite cover body;

[0011] The ball head segment, the left composite curve segment, the right composite curve segment, the left composite straight cylinder segment and the right composite straight cylinder segment are all fixedly connected by the metal frame and fasteners.

[0012] Preferably, the ball head segment includes a ball head outer panel, a ball head inner panel and a ball head end frame;

[0013] The ball head end frame is located at the rear end of the ball head segment and includes a first mounting frame and a second mounting frame with an included angle. The ball head outer panel and the ball head inner panel are sequentially stacked and installed on the first mounting frame from the outside inwards by fifth fastening standard parts;

[0014] The second mounting frame is fixedly connected to the left composite curve segment front end F frame of the front end of the left composite curve segment and the right composite curve segment front end F frame of the front end of the right composite curve segment respectively by fourth fastening standard parts;

[0015] The edge of the front end of the left composite curve segment cover body of the left composite curve segment is fixedly installed on the left composite curve segment front end F frame, and the edge of the front end of the right composite curve segment cover body of the right composite curve segment is fixedly installed on the right composite curve segment front end F frame.

[0016] Preferably, an outer docking girder of the left composite curve segment process separation surface and an inner docking girder of the left composite curve segment process separation surface are arranged at the edge of the left composite curve segment cover body close to the right composite curve segment;

[0017] A composite embedded part is arranged at the edge of the left composite curve segment cover body on the side close to the right composite curve segment. The outer docking girder of the left composite curve segment process separation surface and the inner docking girder of the left composite curve segment process separation surface are both L-shaped;

[0018] The edge of the left composite curve section cover is arranged between the transverse butt joint plate of the outer butt joint girder of the left composite curve section process separation surface and the transverse butt joint plate of the inner butt joint girder of the left composite curve section process separation surface, and is fixed by the first fastening standard parts passing through the transverse butt joint plate of the outer butt joint girder of the left composite curve section process separation surface, the composite material embedded part, and the transverse butt joint plate of the inner butt joint girder of the left composite curve section process separation surface in sequence;

[0019] At the edge of the right composite curve section cover of the right composite curve section close to the left composite curve section, there are arranged an outer butt joint girder of the right composite curve section process separation surface and an inner butt joint girder of the right composite curve section process separation surface;

[0020] At the edge of the right composite curve section cover close to the left composite curve section side, there is arranged a composite material embedded part, and both the outer butt joint girder of the right composite curve section process separation surface and the inner butt joint girder of the right composite curve section process separation surface are L-shaped;

[0021] The edge of the right composite curve section cover is arranged between the transverse butt joint plate of the outer butt joint girder of the right composite curve section process separation surface and the transverse butt joint plate of the inner butt joint girder of the right composite curve section process separation surface, and is fixed by the first fastening standard parts passing through the transverse butt joint plate of the outer butt joint girder of the right composite curve section process separation surface, the composite material embedded part, and the transverse butt joint plate of the inner butt joint girder of the right composite curve section process separation surface in sequence;

[0022] The vertical butt joint plates of the inner butt joint girder of the left composite curve section process separation surface, the vertical butt joint plates of the outer butt joint girder of the left composite curve section process separation surface, the vertical butt joint plates of the outer butt joint girder of the right composite curve section process separation surface, and the vertical butt joint plates of the inner butt joint girder of the right composite curve section process separation surface are stacked in sequence and are fixedly penetrated by the second fastening standard parts in sequence.

[0023] Preferably, at the edge of the left composite straight section cover of the left composite straight section close to the right composite straight section, there are arranged an outer butt joint girder of the left composite straight section process separation surface and an inner butt joint girder of the left composite straight section process separation surface;

[0024] At the edge of the left composite straight section cover close to the right composite straight section side, there is arranged a composite material embedded part, and both the outer butt joint girder of the left composite straight section process separation surface and the inner butt joint girder of the left composite straight section process separation surface are L-shaped;

[0025] The edge of the left composite straight section cover is arranged between the transverse butt joint plate of the outer butt joint girder of the left composite straight section process separation surface and the transverse butt joint plate of the inner butt joint girder of the left composite straight section process separation surface, and is fixed by the first fastening standard parts passing through the transverse butt joint plate of the outer butt joint girder of the left composite straight section process separation surface, the composite material embedded part, and the transverse butt joint plate of the inner butt joint girder of the left composite straight section process separation surface in sequence;

[0026] At the edge of the right composite straight cylinder section cover body of the right composite straight cylinder section close to the left composite straight cylinder section, there are an external docking girder of the process separation surface of the right composite straight cylinder section and an internal docking girder of the process separation surface of the right composite straight cylinder section;

[0027] At the edge of the right composite straight cylinder section cover body close to the left composite straight cylinder section, there is a composite buried part. Both the external docking girder of the process separation surface of the right composite straight cylinder section and the internal docking girder of the process separation surface of the right composite straight cylinder section are L-shaped;

[0028] The edge of the right composite straight cylinder section cover body is arranged between the transverse docking plates of the external docking girder of the process separation surface of the right composite straight cylinder section and the transverse docking plates of the internal docking girder of the process separation surface of the right composite straight cylinder section, and is fixed by the first fastening standard parts passing through the transverse docking plates of the external docking girder of the process separation surface of the right composite straight cylinder section, the composite buried part, and the transverse docking plates of the internal docking girder of the process separation surface of the right composite straight cylinder section in sequence;

[0029] The vertical docking plates of the internal docking girder of the process separation surface of the left composite straight cylinder section, the vertical docking plates of the external docking girder of the process separation surface of the left composite straight cylinder section, the vertical docking plates of the external docking girder of the process separation surface of the right composite straight cylinder section, and the vertical docking plates of the internal docking girder of the process separation surface of the right composite straight cylinder section are stacked in sequence and fixed by the second fastening standard parts passing through them in sequence.

[0030] Preferably, at the edge of the left composite curve section cover body of the left composite curve section far from the right composite curve section, there are a left composite curve section flight separation surface docking girder and a left composite curve section flight separation surface connecting plate;

[0031] The left composite curve section flight separation surface docking girder includes a cover body mounting plate and a connecting plate mounting plate. The edge of the left composite curve section cover body is mounted between the cover body mounting plate and one end of the left composite curve section flight separation surface connecting plate, and is fixed by the third fastening standard parts passing through the cover body mounting plate, the composite buried part inside the edge of the left composite curve section cover body, and one end of the left composite curve section flight separation surface connecting plate in sequence;

[0032] The other end of the left composite curve section flight separation surface connecting plate and the connecting plate mounting plate are fixed by blind rivets;

[0033] At the edge of the right composite curve section cover body of the right composite curve section far from the left composite curve section, there are a right composite curve section flight separation surface docking girder and a right composite curve section flight separation surface connecting plate;

[0034] The docking girder of the right composite curve section flight separation surface includes a cover mounting plate and a connecting plate mounting plate. The edge of the cover of the right composite curve section is mounted between the cover mounting plate and one end of the connecting plate of the right composite curve section flight separation surface, and is fixed by passing a third fastening standard part through the cover mounting plate, the composite material embedded part inside the edge of the cover of the right composite curve section, and one end of the connecting plate of the right composite curve section flight separation surface in sequence;

[0035] The other end of the connecting plate of the right composite curve section flight separation surface is fixed to the connecting plate mounting plate by a blind rivet.

[0036] Preferably, at the edge of the left composite straight section cover of the left composite straight section away from the right composite straight section, there are provided a left composite straight section flight separation surface docking girder and a left composite straight section flight separation surface connecting plate;

[0037] The docking girder of the left composite straight section flight separation surface includes a cover mounting plate and a connecting plate mounting plate. The edge of the cover of the left composite straight section is mounted between the cover mounting plate and one end of the connecting plate of the left composite straight section flight separation surface, and is fixed by passing a third fastening standard part through the cover mounting plate, the composite material embedded part inside the edge of the cover of the left composite straight section, and one end of the connecting plate of the left composite straight section flight separation surface in sequence;

[0038] The other end of the connecting plate of the left composite straight section flight separation surface is fixed to the connecting plate mounting plate by a blind rivet;

[0039] At the edge of the right composite straight section cover of the right composite straight section away from the left composite straight section, there are provided a right composite straight section flight separation surface docking girder and a right composite straight section flight separation surface connecting plate;

[0040] The docking girder of the right composite straight section flight separation surface includes a cover mounting plate and a connecting plate mounting plate. The edge of the cover of the right composite straight section is mounted between the cover mounting plate and one end of the connecting plate of the right composite straight section flight separation surface, and is fixed by passing a third fastening standard part through the cover mounting plate, the composite material embedded part inside the edge of the cover of the right composite straight section, and one end of the connecting plate of the right composite straight section flight separation surface in sequence;

[0041] The other end of the connecting plate of the right composite straight section flight separation surface is fixed to the connecting plate mounting plate by a blind rivet.

[0042] Preferably, at the edge of the left composite curve section cover of the left composite curve section close to the left composite straight section, there are provided a left composite curve section rear outer frame and a left composite curve section rear inner frame;

[0043] A composite material embedding part is provided at the edge of the left composite material curved section cover body close to the left composite material straight cylinder section. The outer frame and the inner frame at the rear end of the left composite material curved section are both L-shaped.

[0044] The edge of the left composite material curved section cover body is arranged between the horizontal butt joint plates of the outer frame and the inner frame at the rear end of the left composite material curved section, and is fixed by passing a sixth fastening standard part through the horizontal butt joint plates of the outer frame at the rear end of the left composite material curved section, the composite material embedding part, and the horizontal butt joint plates of the inner frame at the rear end of the left composite material curved section in sequence.

[0045] At the edge of the left composite material straight cylinder section cover body of the left composite material straight cylinder section close to the left composite material curved section, an outer frame and an inner frame at the rear end of the left composite material straight cylinder section are provided.

[0046] A composite material embedding part is provided at the edge of the left composite material straight cylinder section cover body close to the left composite material straight cylinder section. The outer frame and the inner frame at the rear end of the left composite material straight cylinder section are both L-shaped.

[0047] The edge of the left composite material straight cylinder section cover body is arranged between the horizontal butt joint plates of the outer frame and the inner frame at the rear end of the left composite material straight cylinder section, and is fixed by passing a sixth fastening standard part through the horizontal butt joint plates of the outer frame at the rear end of the left composite material straight cylinder section, the composite material embedding part, and the horizontal butt joint plates of the inner frame at the rear end of the left composite material straight cylinder section in sequence.

[0048] The vertical butt joint plates of the outer frame at the rear end of the left composite material curved section and the vertical butt joint plates of the outer frame at the rear end of the left composite material straight cylinder section are stacked and fixed by passing a seventh fastening standard part through them in sequence and cooperating with a floating support plate nut at the end.

[0049] The vertical butt joint plates of the inner frame at the rear end of the left composite material straight cylinder section and the vertical butt joint plates of the inner frame at the rear end of the left composite material curved section respectively abut against the rear side of the vertical butt joint plates of the outer frame at the rear end of the left composite material straight cylinder section and the front side of the vertical butt joint plates of the outer frame at the rear end of the left composite material curved section, and are fixed by passing an eighth fastening standard part through them in sequence.

[0050] Preferably, at the edge of the right composite material curved section cover body of the right composite material curved section close to the right composite material straight cylinder section, an outer frame and an inner frame at the rear end of the right composite material curved section are provided.

[0051] A composite material embedding part is provided at the edge of the right composite material curved section cover body close to the right composite material straight cylinder section. The outer frame and the inner frame at the rear end of the right composite material curved section are both L-shaped.

[0052] The edge of the right composite curve section cover is arranged between the transverse docking plate of the rear outer frame of the right composite curve section and the transverse docking plate of the rear inner frame of the right composite curve section, and is fixed by the sixth fastening standard part passing through the transverse docking plate of the rear outer frame of the right composite curve section, the composite buried part and the transverse docking plate of the rear inner frame of the right composite curve section in sequence;

[0053] At the edge of the right composite straight cylinder section cover of the right composite straight cylinder section close to the right composite curve section, there are a rear outer frame and a rear inner frame of the right composite straight cylinder section;

[0054] At the edge of the right composite straight cylinder section cover close to the right composite straight cylinder section, there is a composite buried part. Both the rear outer frame and the rear inner frame of the right composite straight cylinder section are L-shaped;

[0055] The edge of the right composite straight cylinder section cover is arranged between the transverse docking plate of the rear outer frame of the right composite straight cylinder section and the transverse docking plate of the rear inner frame of the right composite straight cylinder section, and is fixed by the sixth fastening standard part passing through the transverse docking plate of the rear outer frame of the right composite straight cylinder section, the composite buried part and the transverse docking plate of the rear inner frame of the right composite straight cylinder section in sequence;

[0056] The vertical docking plate of the rear outer frame of the right composite curve section and the vertical docking plate of the rear outer frame of the right composite straight cylinder section are stacked and fixed by the seventh fastening standard part passing through in sequence and cooperating with the floating support plate nut at the end;

[0057] The vertical docking plate of the rear inner frame of the right composite straight cylinder section and the vertical docking plate of the rear inner frame of the right composite curve section are respectively abutted against the rear side of the vertical docking plate of the rear outer frame of the right composite straight cylinder section and the front side of the vertical docking plate of the rear outer frame of the right composite curve section, and are fixed by the eighth fastening standard part passing through in sequence.

[0058] Preferably, at the rear edge of the left composite straight cylinder section cover of the left composite straight cylinder section, there are a rear outer frame and a rear inner frame of the left composite straight cylinder section;

[0059] At the rear edge of the left composite straight cylinder section cover, there is a composite buried part. Both the rear outer frame and the rear inner frame of the left composite straight cylinder section are L-shaped;

[0060] The edge of the left composite straight cylinder section cover is arranged between the transverse docking plate of the rear outer frame of the left composite straight cylinder section and the transverse docking plate of the rear inner frame of the left composite straight cylinder section, and is fixed by the sixth fastening standard part passing through the transverse docking plate of the rear outer frame of the left composite straight cylinder section, the composite buried part and the transverse docking plate of the rear inner frame of the left composite straight cylinder section in sequence;

[0061] On the front side of the vertical docking plate of the rear outer frame of the left composite straight cylinder section, there is a floating support plate nut;

[0062] At the rear edge of the right composite straight cylinder section cover of the right composite straight cylinder section, there are a rear outer frame and a rear inner frame of the right composite straight cylinder section;

[0063] At the rear edge of the right composite straight cylinder section cover, there is a composite buried part. Both the rear outer frame and the rear inner frame of the right composite straight cylinder section are L-shaped;

[0064] The edge of the right composite straight cylinder section cover is arranged between the transverse docking plate of the rear outer frame of the right composite straight cylinder section and the transverse docking plate of the rear inner frame of the right composite straight cylinder section, and is fixed by passing a sixth fastening standard part through the transverse docking plate of the rear outer frame of the right composite straight cylinder section, the composite buried part, and the transverse docking plate of the rear inner frame of the right composite straight cylinder section in sequence;

[0065] On the front side of the vertical docking plate of the rear outer frame of the right composite straight cylinder section, there is a floating support plate nut.

[0066] Compared with the prior art, the present invention has the following beneficial effects:

[0067] 1. The present invention forms a large-size composite satellite fairing through the connection of split structures, overcomes the need for large-scale heat treatment equipment for the forming of large-size composite satellite fairings, and the split structure and connection method of the large-size composite satellite fairing adopted effectively reduce the forming difficulty of the composite cover body and greatly improve the deformation problem of the large-size composite satellite fairing. Compared with the existing composite fairings, the assembly accuracy of the product is greatly improved, and the functional reliability of the product is ensured.

[0068] 2. The present invention avoids the large deformation defect of the integral co-curing forming of the composite satellite fairing through the adhesive and screw assembly of the composite cover body and the metal frame. Further, the assembly deformation is reduced through the positioning of the metal frame and the clearance assembly, and the assembly accuracy of the large-size composite satellite fairing is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes, and advantages of the present invention will become more obvious:

[0070] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0071] Figure 2 It is a schematic diagram of the connection structure of the longitudinal process separation surface of the fairing in the present invention;

[0072] Figure 3 It is a schematic diagram of the connection structure of the longitudinal flight separation surface of the fairing in the present invention;

[0073] Figure 4Schematic diagram of the connection structure between the ball head section and the curved section in the present invention;

[0074] Figure 5 Schematic diagram of the connection structure between the curved section and the straight tube section in the present invention;

[0075] Figure 6 Schematic diagram of the connection structure between the straight tube section housing and the rear end frame of the straight tube section in the present invention.

[0076] As shown in the figure:

[0077] Ball head section 10

[0078] Ball head outer panel 11

[0079] Ball head inner panel 12

[0080] Ball head end frame 13

[0081] Left composite curved section 20

[0082] Left composite curved section housing 21

[0083] Left composite curved section outer docking truss at the process separation surface 22

[0084] Left composite curved section inner docking truss at the process separation surface 23

[0085] Left composite curved section flight separation surface docking truss 24

[0086] Left composite curved section flight separation surface connection plate 25

[0087] Left composite curved section front end F frame 26

[0088] Left composite curved section rear end outer frame 27

[0089] Left composite curved section rear end inner frame 28

[0090] Right composite curved section 30

[0091] Right composite curved section housing 31

[0092] Right composite curved section outer docking truss at the process separation surface 32

[0093] Right composite curved section inner docking truss at the process separation surface 33

[0094] Right composite curved section flight separation surface docking truss 34

[0095] Right composite curved section flight separation surface connection plate 35

[0096] Right composite curved section front end F frame 36

[0097] Right composite curved section rear end outer frame 37

[0098] Inner frame at the rear end of the right composite curve segment 38

[0099] Left composite straight cylinder segment 40

[0100] Cover of the left composite straight cylinder segment 41

[0101] Outer docking girder at the process separation surface of the left composite straight cylinder segment 42

[0102] Inner docking girder at the process separation surface of the left composite straight cylinder segment 43

[0103] Docking girder at the flight separation surface of the left composite straight cylinder segment 44

[0104] Connection plate at the flight separation surface of the left composite straight cylinder segment 45

[0105] Outer frame at the front end of the left composite straight cylinder segment 46

[0106] Inner frame at the front end of the left composite straight cylinder segment 47

[0107] Outer frame at the rear end of the left composite straight cylinder segment 48

[0108] Inner frame at the rear end of the left composite straight cylinder segment 49

[0109] Right composite straight cylinder segment 50

[0110] Cover of the right composite straight cylinder segment 51

[0111] Outer docking girder at the process separation surface of the right composite straight cylinder segment 52

[0112] Inner docking girder at the process separation surface of the right composite straight cylinder segment 53

[0113] Docking girder at the flight separation surface of the right composite straight cylinder segment 54

[0114] Connection plate at the flight separation surface of the right composite straight cylinder segment 55

[0115] Outer frame at the front end of the right composite straight cylinder segment 56

[0116] Inner frame at the front end of the right composite straight cylinder segment 57

[0117] Outer frame at the rear end of the right composite straight cylinder segment 58

[0118] Inner frame at the rear end of the right composite straight cylinder segment 59

[0119] Composite buried part 01

[0120] Adhesive film for connecting the metal frame of the composite cover 02

[0121] First fastening standard part 03

[0122] Second fastening standard part 04

[0123] Third fastening standard part 05

[0124] Blind Rivet 06

[0125] Fourth Fastening Standard Part 07

[0126] Fifth Fastening Standard Part 08

[0127] Sixth Fastening Standard Part 09

[0128] Floating Carrier Nut 010

[0129] Seventh Fastening Standard Part 011

[0130] Eighth Fastening Standard Part 012 Specific Embodiment

[0131] The present invention will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several changes and improvements can still be made. These all belong to the protection scope of the present invention.

[0132] The present invention discloses a split large - size satellite fairing, which is interconnected through a split structure to form a large - size composite satellite fairing, overcoming the need for large - scale heat treatment equipment for the forming of large - size composite satellite fairings. The split structure and connection method of the large - size composite satellite fairing effectively reduce the forming difficulty of the composite fairing body and greatly improve the deformation problem of the large - size composite satellite fairing.

[0133] According to the split structure provided by the present invention, a large - size composite satellite fairing is formed by interconnecting, as Figure 1 shown, including a spherical head section 10, a left composite curve section 20, a right composite curve section 30, a left composite straight cylinder section 40, and a right composite straight cylinder section 50; the left composite curve section 20 and the right composite curve section 30 are both arranged in parallel at the rear end of the spherical head section 10, and the left composite straight cylinder section 40 and the right composite straight cylinder section 50 are respectively arranged at the rear ends of the left composite curve section 20 and the right composite curve section 30; the spherical head section 10, the left composite curve section 20, the right composite curve section 30, the left composite straight cylinder section 40, and the right composite straight cylinder section 50 are connected by fasteners to form a split fairing.

[0134] Through the split structure, the need for large - scale heat treatment equipment for the forming of large - size composite satellite fairings can be overcome, and the forming difficulty of the composite fairing body is effectively reduced.

[0135] Specifically, the left composite curve segment 20, the right composite curve segment 30, the left composite straight cylinder segment 40, and the right composite straight cylinder segment 50 each include a composite cover body and a metal frame assembled with glue and screws on the edge of the composite cover body; the ball head segment 10, the left composite curve segment 20, the right composite curve segment 30, the left composite straight cylinder segment 40, and the right composite straight cylinder segment 50 are fixedly connected through the metal frame and fasteners. Through the glue and screw assembly of the composite cover body and the metal frame, the large deformation defect of the integral co-curing forming of the composite satellite fairing is overcome. Further, the assembly deformation is reduced through the positioning of the metal frame and the clearance assembly, and the assembly accuracy of the large-size composite satellite fairing is greatly improved.

[0136] As Figure 4 shown, the following is the specific connection method between the ball head segment 10 and the front ends of the left composite curve segment 20 and the right composite curve segment 30 in the present invention:

[0137] The ball head segment 10 includes a ball head outer panel 11, a ball head inner panel 12, and a ball head end frame 13; the ball head end frame 13 is located at the rear end of the ball head segment 10 and includes a first installation frame and a second installation frame with an included angle. The ball head outer panel 11 and the ball head inner panel 12 are sequentially stacked and installed on the first installation frame from the outside to the inside through the fifth fastening standard part 08; the second installation frame is fixedly connected to the left composite curve segment front F frame 26 of the front end of the left composite curve segment 20 and the right composite curve segment front F frame 36 of the front end of the right composite curve segment 30 through the fourth fastening standard part 07 respectively; the edge of the front end of the left composite curve segment cover body 21 of the left composite curve segment 20 is fixedly installed on the left composite curve segment front F frame 26, and the edge of the front end of the right composite curve segment cover body 31 of the right composite curve segment 30 is fixedly installed on the right composite curve segment front F frame 36.

[0138] As Figure 2 shown, the following is the specific connection method between the left composite curve segment 20 and the right composite curve segment 30 in the present invention:

[0139] The left composite curve segment 20 is provided with a left composite curve segment process separation surface outer docking girder 22 and a left composite curve segment process separation surface inner docking girder 23 at the edge close to the right composite curve segment 30; a composite embedded part 01 is arranged at the edge of the left composite curve segment cover body 21 on the side close to the right composite curve segment 30, and both the left composite curve segment process separation surface outer docking girder 22 and the left composite curve segment process separation surface inner docking girder 23 are L-shaped;

[0140] The edge of the left composite curve segment cover 21 is disposed between the transverse docking plate of the outer docking girder 22 of the left composite curve segment process separation surface and the transverse docking plate of the inner docking girder 23 of the left composite curve segment process separation surface, and is fixed by the first fastening standard part 03 passing through the transverse docking plate of the outer docking girder 22 of the left composite curve segment process separation surface, the composite material embedded part 01, and the transverse docking plate of the inner docking girder 23 of the left composite curve segment process separation surface in sequence;

[0141] At the edge of the right composite curve segment cover 31 of the right composite curve segment 30 close to the left composite curve segment 20, there are provided an outer docking girder 32 of the right composite curve segment process separation surface and an inner docking girder 33 of the right composite curve segment process separation surface; at the edge of the right composite curve segment cover 31 on the side close to the left composite curve segment 20, there is provided a composite material embedded part 01, and both the outer docking girder 32 of the right composite curve segment process separation surface and the inner docking girder 33 of the right composite curve segment process separation surface are L-shaped;

[0142] The edge of the right composite curve segment cover 31 is disposed between the transverse docking plate of the outer docking girder 32 of the right composite curve segment process separation surface and the transverse docking plate of the inner docking girder 33 of the right composite curve segment process separation surface, and is fixed by the first fastening standard part 03 passing through the transverse docking plate of the outer docking girder 32 of the right composite curve segment process separation surface, the composite material embedded part 01, and the transverse docking plate of the inner docking girder 33 of the right composite curve segment process separation surface in sequence;

[0143] The vertical docking plates of the inner docking girder 23 of the left composite curve segment process separation surface, the vertical docking plates of the outer docking girder 22 of the left composite curve segment process separation surface, the vertical docking plates of the outer docking girder 32 of the right composite curve segment process separation surface, and the vertical docking plates of the inner docking girder 33 of the right composite curve segment process separation surface are stacked in sequence and are fixedly penetrated by the second fastening standard part 04 in sequence.

[0144] Further, between the edge of the left composite curve segment cover 21 and the transverse docking plate of the outer docking girder 22 of the left composite curve segment process separation surface and the transverse docking plate of the inner docking girder 23 of the left composite curve segment process separation surface, there is provided a composite material cover metal frame connection adhesive film 02, and between the edge of the right composite curve segment cover 31 and the transverse docking plate of the outer docking girder 32 of the right composite curve segment process separation surface and the transverse docking plate of the inner docking girder 33 of the right composite curve segment process separation surface, there is provided a composite material cover metal frame connection adhesive film 02, thereby realizing the cooperation of glue and screw.

[0145] As Figure 2 shown, the specific connection manner between the left composite straight cylinder segment 40 and the right composite straight cylinder segment 50 in the present invention is as follows:

[0146] At the edge of the left composite straight cylinder section cover 41 of the left composite straight cylinder section 40 close to the right composite straight cylinder section 50, there are arranged an outer butt truss 42 and an inner butt truss 43 of the process separation surface of the left composite straight cylinder section; at the edge of the left composite straight cylinder section cover 41 on the side close to the right composite straight cylinder section 50, there is arranged a composite buried part 01. Both the outer butt truss 42 and the inner butt truss 43 of the process separation surface of the left composite straight cylinder section are L-shaped;

[0147] The edge of the left composite straight cylinder section cover 41 is arranged between the transverse butt plate of the outer butt truss 42 of the process separation surface of the left composite straight cylinder section and the transverse butt plate of the inner butt truss 43 of the process separation surface of the left composite straight cylinder section, and is fixed by the first fastening standard part 03 passing through the transverse butt plate of the outer butt truss 42 of the process separation surface of the left composite straight cylinder section, the composite buried part 01 and the transverse butt plate of the inner butt truss 43 of the process separation surface of the left composite straight cylinder section in sequence;

[0148] At the edge of the right composite straight cylinder section cover 51 of the right composite straight cylinder section 50 close to the left composite straight cylinder section 40, there are arranged an outer butt truss 52 and an inner butt truss 53 of the process separation surface of the right composite straight cylinder section; at the edge of the right composite straight cylinder section cover 51 on the side close to the left composite straight cylinder section 40, there is arranged a composite buried part 01. Both the outer butt truss 52 and the inner butt truss 53 of the process separation surface of the right composite straight cylinder section are L-shaped;

[0149] The edge of the right composite straight cylinder section cover 51 is arranged between the transverse butt plate of the outer butt truss 52 of the process separation surface of the right composite straight cylinder section and the transverse butt plate of the inner butt truss 53 of the process separation surface of the right composite straight cylinder section, and is fixed by the first fastening standard part 03 passing through the transverse butt plate of the outer butt truss 52 of the process separation surface of the right composite straight cylinder section, the composite buried part 01 and the transverse butt plate of the inner butt truss 53 of the process separation surface of the right composite straight cylinder section in sequence;

[0150] The vertical butt plates of the inner butt truss 43 of the process separation surface of the left composite straight cylinder section, the vertical butt plates of the outer butt truss 42 of the process separation surface of the left composite straight cylinder section, the vertical butt plates of the outer butt truss 52 of the process separation surface of the right composite straight cylinder section and the vertical butt plates of the inner butt truss 53 of the process separation surface of the right composite straight cylinder section are stacked in sequence and are fixedly penetrated by the second fastening standard part 04 in sequence.

[0151] Furthermore, a composite cover metal frame connection adhesive film 02 is provided between the edge of the left composite straight cylinder section cover 41 and the transverse butt joint plates of the outer butt joint girder 42 of the left composite straight cylinder section process separation surface and the inner butt joint girder 43 of the left composite straight cylinder section process separation surface. A composite cover metal frame connection adhesive film 02 is also provided between the edge of the right composite straight cylinder section cover 51 and the transverse butt joint plates of the outer butt joint girder 52 of the right composite straight cylinder section process separation surface and the inner butt joint girder 53 of the right composite straight cylinder section process separation surface, thereby realizing the combination of adhesive and screw.

[0152] As Figure 3 shown, the figure is a specific structure of the outer edges of the left composite curve section 20, the right composite curve section 30, the left composite straight cylinder section 40, and the right composite straight cylinder section 50 in the present invention;

[0153] At the edge of the left composite curve section cover 21 of the left composite curve section 20 away from the right composite curve section 30, a left composite curve section flight separation surface butt joint girder 24 and a left composite curve section flight separation surface connection plate 25 are provided. The left composite curve section flight separation surface butt joint girder 24 includes a cover mounting plate and a connection plate mounting plate. The edge of the left composite curve section cover 21 is mounted between the cover mounting plate and one end of the left composite curve section flight separation surface connection plate 25, and is fixed by sequentially passing the third fastening standard part 05 through the cover mounting plate, the composite buried part 01 inside the edge of the left composite curve section cover 21, and one end of the left composite curve section flight separation surface connection plate 25. The other end of the left composite curve section flight separation surface connection plate 25 is fixed to the connection plate mounting plate by a blind rivet 06;

[0154] At the edge of the right composite curve section cover 31 of the right composite curve section 30 away from the left composite curve section 20, a right composite curve section flight separation surface butt joint girder 34 and a right composite curve section flight separation surface connection plate 35 are provided. The right composite curve section flight separation surface butt joint girder 34 includes a cover mounting plate and a connection plate mounting plate. The edge of the right composite curve section cover 31 is mounted between the cover mounting plate and one end of the right composite curve section flight separation surface connection plate 35, and is fixed by sequentially passing the third fastening standard part 05 through the cover mounting plate, the composite buried part 01 inside the edge of the right composite curve section cover 31, and one end of the right composite curve section flight separation surface connection plate 35. The other end of the right composite curve section flight separation surface connection plate 35 is fixed to the connection plate mounting plate by a blind rivet 06.

[0155] At the edge of the left composite straight cylinder section cover 41 of the left composite straight cylinder section 40 away from the right composite straight cylinder section 50, there are provided a left composite straight cylinder section flight separation surface docking girder 44 and a left composite straight cylinder section flight separation surface connecting plate 45; the left composite straight cylinder section flight separation surface docking girder 44 includes a cover body mounting plate and a connecting plate mounting plate, the edge of the left composite straight cylinder section cover 41 is mounted between the cover body mounting plate and one end of the left composite straight cylinder section flight separation surface connecting plate 45, and is fixed by the third fastening standard part 05 passing through the cover body mounting plate, the composite material embedded part 01 inside the edge of the left composite straight cylinder section cover 41 and one end of the left composite straight cylinder section flight separation surface connecting plate 45 in sequence; the other end of the left composite straight cylinder section flight separation surface connecting plate 45 and the connecting plate mounting plate are fixed by a blind rivet 06.

[0156] At the edge of the right composite straight cylinder section cover 51 of the right composite straight cylinder section 50 away from the left composite straight cylinder section 40, there are provided a right composite straight cylinder section flight separation surface docking girder 54 and a right composite straight cylinder section flight separation surface connecting plate 55; the right composite straight cylinder section flight separation surface docking girder 54 includes a cover body mounting plate and a connecting plate mounting plate, the edge of the right composite straight cylinder section cover 51 is mounted between the cover body mounting plate and one end of the right composite straight cylinder section flight separation surface connecting plate 55, and is fixed by the third fastening standard part 05 passing through the cover body mounting plate, the composite material embedded part 01 inside the edge of the right composite straight cylinder section cover 51 and one end of the right composite straight cylinder section flight separation surface connecting plate 55 in sequence; the other end of the right composite straight cylinder section flight separation surface connecting plate 55 and the connecting plate mounting plate are fixed by a blind rivet 06.

[0157] Wherein, between the edge of the left composite curve section cover 21 and the left composite curve section flight separation surface docking girder 24, the left composite curve section flight separation surface connecting plate 25, between the edge of the right composite curve section cover 31 and the right composite curve section flight separation surface docking girder 34, the right composite curve section flight separation surface connecting plate 35, between the edge of the left composite straight cylinder section cover 41 and the left composite straight cylinder section flight separation surface docking girder 44, the left composite straight cylinder section flight separation surface connecting plate 45, and between the edge of the right composite straight cylinder section cover 51 and the right composite straight cylinder section flight separation surface docking girder 54, the right composite straight cylinder section flight separation surface connecting plate 55, there is provided a composite material cover body metal frame connection adhesive film 02.

[0158] As Figure 5 shown, the specific connection method between the left composite straight cylinder section 40 and the left composite curve section 20 in the present invention is as follows:

[0159] At the edge of the left composite material curve section cover 21 of the left composite material curve section 20 close to the left composite material straight cylinder section 40, there are a left composite material curve section rear outer frame 27 and a left composite material curve section rear inner frame 28; at the edge of the left composite material curve section cover 21 on the side close to the left composite material straight cylinder section 40, there is a composite material embedded part 01. Both the left composite material curve section rear outer frame 27 and the left composite material curve section rear inner frame 28 are L-shaped;

[0160] The edge of the left composite material curve section cover 21 is arranged between the transverse butt joint plates of the left composite material curve section rear outer frame 27 and the left composite material curve section rear inner frame 28, and is fixed by the sixth fastening standard part 09 passing through the transverse butt joint plates of the left composite material curve section rear outer frame 27, the composite material embedded part 01 and the transverse butt joint plates of the left composite material curve section rear inner frame 28 in sequence;

[0161] At the edge of the left composite material straight cylinder section cover 41 of the left composite material straight cylinder section 40 close to the left composite material curve section 20, there are a left composite material straight cylinder section front outer frame 46 and a left composite material straight cylinder section front inner frame 47; at the edge of the left composite material straight cylinder section cover 41 on the side close to the left composite material straight cylinder section 40, there is a composite material embedded part 01. Both the left composite material straight cylinder section front outer frame 46 and the left composite material straight cylinder section front inner frame 47 are L-shaped;

[0162] The edge of the left composite material straight cylinder section cover 41 is arranged between the transverse butt joint plates of the left composite material straight cylinder section front outer frame 46 and the left composite material straight cylinder section front inner frame 47, and is fixed by the sixth fastening standard part 09 passing through the transverse butt joint plates of the left composite material straight cylinder section front outer frame 46, the composite material embedded part 01 and the transverse butt joint plates of the left composite material straight cylinder section front inner frame 47 in sequence;

[0163] The vertical butt joint plates of the left composite material curve section rear outer frame 27 and the vertical butt joint plates of the left composite material straight cylinder section front outer frame 46 are stacked and fixed by the seventh fastening standard part 011 passing through in sequence and cooperating with the floating support plate nut 010 at the end; the vertical butt joint plates of the left composite material straight cylinder section front inner frame 47 and the vertical butt joint plates of the left composite material curve section rear inner frame 28 are respectively abutted against the rear side of the vertical butt joint plates of the left composite material straight cylinder section front outer frame 46 and the front side of the vertical butt joint plates of the left composite material curve section rear outer frame 27, and are fixed by the eighth fastening standard part 012 passing through in sequence.

[0164] Among them, between the left composite material curve section cover 21 and the left composite material curve section rear outer frame 27, the left composite material curve section rear inner frame 28, and between the left composite material straight cylinder section cover 41 and the left composite material straight cylinder section front outer frame 46, the left composite material straight cylinder section front inner frame 47, there are composite material cover metal frame connection adhesive films 02.

[0165] Such as Figure 5As shown, this is the specific connection method between the right composite straight cylinder section 50 and the right composite curve section 30 in the present invention. The specific structure is as follows:

[0166] At the edge of the right composite curve section cover 31 of the right composite curve section 30 close to the right composite straight cylinder section 50, there are a right composite curve section rear outer frame 37 and a right composite curve section rear inner frame 38; at the edge of the right composite curve section cover 31 on the side close to the right composite straight cylinder section 50, there is a composite material embedding part 01. Both the right composite curve section rear outer frame 37 and the right composite curve section rear inner frame 38 are L-shaped;

[0167] The edge of the right composite curve section cover 31 is arranged between the horizontal butt joint plates of the right composite curve section rear outer frame 37 and the horizontal butt joint plates of the right composite curve section rear inner frame 38, and is fixed by the sixth fastening standard part 09 passing through the horizontal butt joint plates of the right composite curve section rear outer frame 37, the composite material embedding part 01, and the horizontal butt joint plates of the right composite curve section rear inner frame 38 in sequence;

[0168] At the edge of the right composite straight cylinder section cover 51 of the right composite straight cylinder section 50 close to the right composite curve section 30, there are a right composite straight cylinder section front outer frame 56 and a right composite straight cylinder section front inner frame 57; at the edge of the right composite straight cylinder section cover 51 on the side close to the right composite straight cylinder section 50, there is a composite material embedding part 01. Both the right composite straight cylinder section front outer frame 56 and the right composite straight cylinder section front inner frame 57 are L-shaped;

[0169] The edge of the right composite straight cylinder section cover 51 is arranged between the horizontal butt joint plates of the right composite straight cylinder section front outer frame 56 and the horizontal butt joint plates of the right composite straight cylinder section front inner frame 57, and is fixed by the sixth fastening standard part 09 passing through the horizontal butt joint plates of the right composite straight cylinder section front outer frame 56, the composite material embedding part 01, and the horizontal butt joint plates of the right composite straight cylinder section front inner frame 57 in sequence;

[0170] The vertical butt joint plates of the right composite curve section rear outer frame 37 and the vertical butt joint plates of the right composite straight cylinder section front outer frame 56 are stacked and fixed by the seventh fastening standard part 011 passing through in sequence and cooperating with the floating support plate nut 010 at the end; the vertical butt joint plates of the right composite straight cylinder section front inner frame 57 and the vertical butt joint plates of the right composite curve section rear inner frame 38 are respectively abutted against the rear side of the vertical butt joint plates of the right composite straight cylinder section front outer frame 56 and the front side of the vertical butt joint plates of the right composite curve section rear outer frame 37, and are fixed by the eighth fastening standard part 012 passing through in sequence.

[0171] Among them, a composite material cover metal frame connecting adhesive film 02 is provided between the right composite material curve section cover 31 and the outer frame 37 at the rear end of the right composite material curve section and the inner frame 38 at the rear end of the right composite material curve section, and between the right composite material straight section cover 51 and the outer frame 56 at the front end of the right composite material straight section and the inner frame 57 at the front end of the right composite material straight section.

[0172] As Figure 6 shown, it is the specific structure of the rear end of the right composite material straight section 50 and the left composite material straight section 40 in the present invention;

[0173] At the rear edge of the left composite material straight section cover 41 of the left composite material straight section 40, an outer frame 48 at the rear end of the left composite material straight section and an inner frame 49 at the rear end of the left composite material straight section are provided; a composite material embedded part 01 is provided at the rear edge of the left composite material straight section cover 41, and both the outer frame 48 at the rear end of the left composite material straight section and the inner frame 49 at the rear end of the left composite material straight section are L-shaped;

[0174] The edge of the left composite material straight section cover 41 is arranged between the horizontal docking plate of the outer frame 48 at the rear end of the left composite material straight section and the horizontal docking plate of the inner frame 49 at the rear end of the left composite material straight section, and is fixed by the sixth fastening standard part 09 passing through the horizontal docking plate of the outer frame 48 at the rear end of the left composite material straight section, the composite material embedded part 01 and the horizontal docking plate of the inner frame 49 at the rear end of the left composite material straight section in sequence; a floating support plate nut 010 is arranged on the front side of the vertical docking plate of the outer frame 48 at the rear end of the left composite material straight section;

[0175] At the rear edge of the right composite material straight section cover 51 of the right composite material straight section 50, an outer frame 58 at the rear end of the right composite material straight section and an inner frame 59 at the rear end of the right composite material straight section are provided; a composite material embedded part 01 is provided at the rear edge of the right composite material straight section cover 51, and both the outer frame 58 at the rear end of the right composite material straight section and the inner frame 59 at the rear end of the right composite material straight section are L-shaped;

[0176] The edge of the right composite material straight section cover 51 is arranged between the horizontal docking plate of the outer frame 58 at the rear end of the right composite material straight section and the horizontal docking plate of the inner frame 59 at the rear end of the right composite material straight section, and is fixed by the sixth fastening standard part 09 passing through the horizontal docking plate of the outer frame 58 at the rear end of the right composite material straight section, the composite material embedded part 01 and the horizontal docking plate of the inner frame 59 at the rear end of the right composite material straight section in sequence; a floating support plate nut 010 is arranged on the front side of the vertical docking plate of the outer frame 58 at the rear end of the right composite material straight section.

[0177] Among them, a composite material cover metal frame connecting adhesive film 02 is provided between the left composite material straight section cover 41 and the outer frame 48 at the rear end of the left composite material straight section and the inner frame 49 at the rear end of the left composite material straight section, and between the right composite material straight section cover 51 and the outer frame 58 at the rear end of the right composite material straight section and the inner frame 59 at the rear end of the right composite material straight section.

[0178] The connection and assembly method of the present invention specifically includes the following steps:

[0179] Step 1: Position the ball head outer panel 11, the ball head inner panel 12, and the ball head end frame 13 respectively through the tooling, and use the fifth fastening standard part 08 for connection and fixation.

[0180] Step 2: Machine-process butt holes on the end faces of the front F frame 26 of the left composite curve section, the outer frame 27 at the rear end of the left composite curve section, the inner frame 28 at the rear end of the left composite curve section, the front F frame 36 of the right composite curve section, the outer frame 37 at the rear end of the right composite curve section, and the inner frame 38 at the rear end of the right composite curve section respectively.

[0181] Step 3: Machine-process butt holes on the end faces of the inner butt spar 23 of the process separation surface of the left composite curve section, the inner butt spar 33 of the process separation surface of the right composite curve section, the inner butt spar 43 of the process separation surface of the left composite straight section, the inner butt spar 53 of the process separation surface of the right composite straight section, the outer butt spar 22 outside the process separation surface of the left composite curve section, the outer butt spar 32 outside the process separation surface of the right composite curve section, the outer butt spar 42 outside the process separation surface of the left composite straight section, and the outer butt spar 52 outside the process separation surface of the right composite straight section respectively.

[0182] Step 4: Assemble the front F frame 26 of the left composite curve section and the front F frame 36 of the right composite curve section on the cover 21 of the left composite curve section and the cover 31 of the right composite curve section respectively through co-curing and integral forming.

[0183] Step 5: Assemble the composite insert 01 at the edge positions (except the front ends of the cover 21 of the left composite curve section and the cover 31 of the right composite curve section) of the cover 21 of the left composite curve section, the cover 31 of the right composite curve section, the cover 41 of the left composite straight section, and the cover 51 of the right composite straight section according to a certain rule through co-curing and integral forming.

[0184] Step 6: Rivet and assemble the floating support nuts 010 at the outer butt holes of the outer frame 46 at the front end of the left composite straight section, the outer frame 48 at the rear end of the left composite straight section, the outer frame 56 at the front end of the right composite straight section, and the outer frame 58 at the rear end of the right composite straight section.

[0185] Step 7: Position the outer frame 27 at the rear end of the left composite curve section, the outer frame 46 at the front end of the left composite straight section, the outer frame 48 at the rear end of the left composite straight section, the outer butt spar 22 outside the process separation surface of the left composite curve section, and the outer butt spar 42 outside the process separation surface of the left composite straight section through the metal frame butt holes on the tooling. Ensure the relative position dimensions of the metal frame through the tooling.

[0186] Step 8: Position the left composite curve section cover 21 and the left composite straight cylinder section cover 41 on the tooling. Through the embedded part holes at the edges of the composite covers, drill holes for the left composite curve section rear outer frame 27, the left composite straight cylinder section front outer frame 46, the left composite straight cylinder section rear outer frame 48, the left composite curve section process separation surface outer butt joint girder 22, and the left composite straight cylinder section process separation surface outer butt joint girder 42.

[0187] Step 9: Position the left composite curve section rear inner frame 28, the left composite straight cylinder section front inner frame 47, the left composite straight cylinder section rear inner frame 49, the left composite curve section process separation surface inner butt joint girder 23, the left composite straight cylinder section process separation surface inner butt joint girder 43, the left composite curve section flight separation surface butt joint girder 24, and the left composite straight cylinder section flight separation surface butt joint girder 44 inside the composite covers. Among them, the flight separation surface butt joint girder ensures its relative position with other metal frames through the tooling. Drill holes through the left composite curve section rear inner frame 28, the left composite straight cylinder section front inner frame 47, the left composite straight cylinder section rear inner frame 49, the left composite curve section process separation surface inner butt joint girder 23, the left composite straight cylinder section process separation surface inner butt joint girder 43, the left composite curve section flight separation surface butt joint girder 24, and the left composite straight cylinder section flight separation surface butt joint girder 44.

[0188] Step 10: On the left composite curve section flight separation surface connecting plate 25 and the left composite straight cylinder section flight separation surface connecting plate 45, drill holes through the left composite curve section flight separation surface connecting plate 25 and the left composite straight cylinder section flight separation surface connecting plate 45.

[0189] Step 11: Remove the positioning of all metal frames and clean up the debris.

[0190] Step 12: Grind the contact surfaces between the metal frames and the composite covers respectively, and coat the contact surfaces with J-133 adhesive film.

[0191] Step 13: At the rear end of the left composite straight cylinder section cover 41, simultaneously assemble the left composite straight cylinder section rear outer frame 48 and the left composite straight cylinder section rear inner frame 49, and connect and fix them using the sixth fastening standard part 09; at the front end of the left composite straight cylinder section cover 41, simultaneously assemble the left composite straight cylinder section front outer frame 46 and the left composite straight cylinder section front inner frame 47, and connect and fix them using the sixth fastening standard part 09; at the process separation surface of the left composite straight cylinder section cover 41, simultaneously assemble the left composite straight cylinder section process separation surface outer butt joint girder 42 and the left composite straight cylinder section process separation surface inner butt joint girder 43, and connect and fix them using the first fastening standard part 03; at the flight separation surface of the left composite straight cylinder section cover 41, simultaneously assemble the left composite straight cylinder section flight separation surface butt joint girder 44 and the left composite straight cylinder section flight separation surface connecting plate 45, and connect and fix them using the third fastening standard part 05.

[0192] Step 14: At the process separation surface of the left composite curve section cover 21, simultaneously assemble the outer butt truss 22 of the process separation surface of the left composite curve section and the inner butt truss 23 of the process separation surface of the left composite curve section, and connect and fix them using the first fastening standard part 03; at the flight separation surface of the left composite curve section cover 21, simultaneously assemble the butt truss 24 of the flight separation surface of the left composite curve section and the connecting plate 25 of the flight separation surface of the left composite curve section, and connect and fix them using the third fastening standard part 05 and the blind rivet 06.

[0193] Step 15: At the front end of the left composite straight section 40, butt the rear outer frame 27 of the left composite curve section, and connect and fix them using the seventh fastening standard part 011.

[0194] Step 16: At the rear end of the left composite curve section, simultaneously assemble the rear outer frame 27 of the left composite curve section and the rear inner frame 28 of the left composite curve section, and connect and fix them using the sixth fastening standard part 09; at the same time, connect and fix them using the eighth fastening standard part 012 to form the left composite section.

[0195] Step 17: Use the method of Steps 7 - 16 to form the right composite section.

[0196] Step 18: The left and right composite sections are butted through the second fastening standard part 04.

[0197] Step 19: At the front end of the composite section, butt the ball head section 10, and connect and fix them using the fourth fastening standard part 07.

[0198] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0199] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above - specific implementation manners, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined arbitrarily.

Claims

1. A split large-sized satellite fairing, characterized in that It includes a ball head section (10), a left composite curve section (20), a right composite curve section (30), a left composite straight cylinder section (40), and a right composite straight cylinder section (50); The left composite curve section (20) and the right composite curve section (30) are both arranged in parallel at the rear end of the ball head section (10), and the left composite straight cylinder section (40) and the right composite straight cylinder section (50) are respectively arranged at the rear ends of the left composite curve section (20) and the right composite curve section (30); The ball head section (10), the left composite curve section (20), the right composite curve section (30), the left composite straight cylinder section (40), and the right composite straight cylinder section (50) are connected by fasteners to form a split fairing; The ball head section (10) includes a ball head outer panel (11), a ball head inner panel (12), and a ball head end frame (13); The ball head end frame (13) is located at the rear end of the ball head section (10) and includes a first mounting frame and a second mounting frame with an included angle. The ball head outer panel (11) and the ball head inner panel (12) are sequentially stacked and installed on the first mounting frame from outside to inside by a fifth fastening standard part (08); The second mounting frame is fixedly connected to the left composite curve section front F frame (26) at the front end of the left composite curve section (20) and the right composite curve section front F frame (36) at the front end of the right composite curve section (30) respectively by a fourth fastening standard part (07); The edge of the front end of the left composite curve section cover body (21) of the left composite curve section (20) is fixedly installed on the left composite curve section front F frame (26), and the edge of the front end of the right composite curve section cover body (31) of the right composite curve section (30) is fixedly installed on the right composite curve section front F frame (36); The left composite curve section (20), the right composite curve section (30), the left composite straight cylinder section (40), and the right composite straight cylinder section (50) all include a composite cover body and a metal frame glued and screwed to the edge of the composite cover body; The ball head section (10), the left composite curve section (20), the right composite curve section (30), the left composite straight cylinder section (40), and the right composite straight cylinder section (50) are all fixedly connected by a metal frame and fasteners.

2. The split large-sized satellite fairing according to claim 1, wherein At the edge of the left composite curve section cover body (21) of the left composite curve section (20) close to the right composite curve section (30), there are arranged an outer docking girder (22) of the left composite curve section process separation surface and an inner docking girder (23) of the left composite curve section process separation surface; At the edge of the left composite curve section cover body (21) on the side close to the right composite curve section (30), there is arranged a composite embedded part (01). The outer docking girder (22) of the left composite curve section process separation surface and the inner docking girder (23) of the left composite curve section process separation surface are both L-shaped; The edge of the left composite curve section cover (21) is arranged between the transverse butt joint plate of the outer butt joint girder (22) of the left composite curve section process separation surface and the transverse butt joint plate of the inner butt joint girder (23) of the left composite curve section process separation surface, and is fixed by the first fastening standard part (03) passing through the transverse butt joint plate of the outer butt joint girder (22) of the left composite curve section process separation surface, the composite material embedded part (01), and the transverse butt joint plate of the inner butt joint girder (23) of the left composite curve section process separation surface in sequence; At the edge of the right composite curve section cover (31) of the right composite curve section (30) close to the left composite curve section (20), there are arranged an outer butt joint girder (32) of the right composite curve section process separation surface and an inner butt joint girder (33) of the right composite curve section process separation surface; At the edge of the right composite curve section cover (31) on the side close to the left composite curve section (20), there is arranged a composite material embedded part (01), and both the outer butt joint girder (32) of the right composite curve section process separation surface and the inner butt joint girder (33) of the right composite curve section process separation surface are L-shaped; The edge of the right composite curve section cover (31) is arranged between the transverse butt joint plate of the outer butt joint girder (32) of the right composite curve section process separation surface and the transverse butt joint plate of the inner butt joint girder ( ​ 3. The split large-size satellite fairing according to claim 1, characterized in that, ​ ​ ​ At the edge of the right composite straight cylinder section cover (51) of the right composite straight cylinder section (50) close to the left composite straight cylinder section (40), there are provided an outer docking girder (52) of the process separation surface of the right composite straight cylinder section and an inner docking girder (53) of the process separation surface of the right composite straight cylinder section; At the edge of the right composite straight cylinder section cover (51) on the side close to the left composite straight cylinder section (40), there is provided a composite embedded part (01). Both the outer docking girder (52) of the process separation surface of the right composite straight cylinder section and the inner docking girder (53) of the process separation surface of the right composite straight cylinder section are L-shaped; The edge of the right composite straight cylinder section cover (51) is arranged between the transverse docking plate of the outer docking girder (52) of the process separation surface of the right composite straight cylinder section and the transverse docking plate of the inner docking girder (53) of the process separation surface of the right composite straight cylinder section, and is fixed by the first fastening standard part (03) passing through the transverse docking plate of the outer docking girder (52) of the process separation surface of the right composite straight cylinder section, the composite embedded part (01), and the transverse docking plate of the inner docking girder (53) of the process separation surface of the right composite straight cylinder section in sequence; The vertical docking plates of the inner docking girder (43) of the process separation surface of the left composite straight cylinder section, the vertical docking plates of the outer docking girder (42) of the process separation surface of the left composite straight cylinder section, the vertical docking plates of the outer docking girder (52) of the process separation surface of the right composite straight cylinder section, and the vertical docking plates of the inner docking girder (53) of the process separation surface of the right composite straight cylinder section are stacked in sequence and are fixedly penetrated by the second fastening standard part (04) in sequence.

4. The split large-size satellite fairing according to claim 1, wherein At the edge of the left composite curve section cover (21) of the left composite curve section (20) far from the right composite curve section (30), there are provided a left composite curve section flight separation surface docking girder (24) and a left composite curve section flight separation surface connection plate (25); The left composite curve section flight separation surface docking girder (24) includes a cover body mounting plate and a connection plate mounting plate. The edge of the left composite curve section cover (21) is mounted between the cover body mounting plate and one end of the left composite curve section flight separation surface connection plate (25), and is fixed by the third fastening standard part (05) passing through the cover body mounting plate, the composite embedded part (01) inside the edge of the left composite curve section cover (21), and one end of the left composite curve section flight separation surface connection plate (25) in sequence; The other end of the left composite curve section flight separation surface connection plate (25) and the connection plate mounting plate are fixed by a blind rivet (06); At the edge of the right composite curve section cover (31) of the right composite curve section (30) far from the left composite curve section (20), there are provided a right composite curve section flight separation surface docking girder (34) and a right composite curve section flight separation surface connection plate (35); The right composite curve segment flight separation surface docking girder (34) includes a cover mounting plate and a connecting plate mounting plate. The edge of the right composite curve segment cover (31) is mounted between the cover mounting plate and one end of the right composite curve segment flight separation surface connecting plate (35), and is fixed by passing a third fastening standard part (05) through the cover mounting plate, the composite material embedded part (01) inside the edge of the right composite curve segment cover (31), and one end of the right composite curve segment flight separation surface connecting plate (35) in sequence; The other end of the right composite curve segment flight separation surface connecting plate (35) and the connecting plate mounting plate are fixed by blind rivets (06).

5. The split large-size satellite fairing according to claim 1, characterized in that, At the edge of the left composite straight cylinder segment cover (41) of the left composite straight cylinder segment (40) far from the right composite straight cylinder segment (50), there are provided a left composite straight cylinder segment flight separation surface docking girder (44) and a left composite straight cylinder segment flight separation surface connecting plate (45); The left composite straight cylinder segment flight separation surface docking girder (44) includes a cover mounting plate and a connecting plate mounting plate. The edge of the left composite straight cylinder segment cover (41) is mounted between the cover mounting plate and one end of the left composite straight cylinder segment flight separation surface connecting plate (45), and is fixed by passing a third fastening standard part (05) through the cover mounting plate, the composite material embedded part (01) inside the edge of the left composite straight cylinder segment cover (41), and one end of the left composite straight cylinder segment flight separation surface connecting plate (45) in sequence; The other end of the left composite straight cylinder segment flight separation surface connecting plate (45) and the connecting plate mounting plate are fixed by blind rivets (06); At the edge of the right composite straight cylinder segment cover (51) of the right composite straight cylinder segment (50) far from the left composite straight cylinder segment (40), there are provided a right composite straight cylinder segment flight separation surface docking girder (54) and a right composite straight cylinder segment flight separation surface connecting plate (55); The right composite straight cylinder segment flight separation surface docking girder (54) includes a cover mounting plate and a connecting plate mounting plate. The edge of the right composite straight cylinder segment cover (51) is mounted between the cover mounting plate and one end of the right composite straight cylinder segment flight separation surface connecting plate (55), and is fixed by passing a third fastening standard part (05) through the cover mounting plate, the composite material embedded part (01) inside the edge of the right composite straight cylinder segment cover (51), and one end of the right composite straight cylinder segment flight separation surface connecting plate (55) in sequence; The other end of the right composite straight cylinder segment flight separation surface connecting plate (55) and the connecting plate mounting plate are fixed by blind rivets (06).

6. The split large-sized satellite fairing according to claim 1, wherein, At the edge of the left composite curve segment cover (21) of the left composite curve segment (20) close to the left composite straight cylinder segment (40), there are provided a left composite curve segment rear outer frame (27) and a left composite curve segment rear inner frame (28); At the edge of the left composite curve segment cover (21) on the side close to the left composite straight cylinder segment (40), there is provided a composite material embedded part (01). Both the left composite curve segment rear outer frame (27) and the left composite curve segment rear inner frame (28) are L-shaped; The edge of the left composite curve section cover (21) is arranged between the transverse docking plate of the rear outer frame (27) of the left composite curve section and the transverse docking plate of the rear inner frame (28) of the left composite curve section, and is fixed by passing the sixth fastening standard part (09) through the transverse docking plate of the rear outer frame (27) of the left composite curve section, the composite material embedded part (01), and the transverse docking plate of the rear inner frame (28) of the left composite curve section in sequence; At the edge of the left composite straight cylinder section cover (41) of the left composite straight cylinder section (40) close to the left composite curve section (20), there are arranged a front outer frame (46) of the left composite straight cylinder section and a front inner frame (47) of the left composite straight cylinder section; At the edge of the left composite straight cylinder section cover (41) close to the left composite straight cylinder section (40), there is arranged a composite material embedded part (01), and both the front outer frame (46) of the left composite straight cylinder section and the front inner frame (47) of the left composite straight cylinder section are L-shaped; The edge of the left composite straight cylinder section cover (41) is arranged between the transverse docking plate of the front outer frame (46) of the left composite straight cylinder section and the transverse docking plate of the front inner frame (47) of the left composite straight cylinder section, and is fixed by passing the sixth fastening standard part (09) through the transverse docking plate of the front outer frame (46) of the left composite straight cylinder section, the composite material embedded part (01), and the transverse docking plate of the front inner frame (47) of the left composite straight cylinder section in sequence; The vertical docking plate of the rear outer frame (27) of the left composite curve section and the vertical docking plate of the front outer frame (46) of the left composite straight cylinder section are stacked and fixed by passing the seventh fastening standard part (011) through them in sequence and matching with the floating support plate nut (010) at the end; The vertical docking plate of the front inner frame (47) of the left composite straight cylinder section and the vertical docking plate of the rear inner frame (28) of the left composite curve section are respectively abutted against the rear side of the vertical docking plate of the front outer frame (46) of the left composite straight cylinder section and the front side of the vertical docking plate of the rear outer frame (27) of the left composite curve section, and are fixed by passing the eighth fastening standard part (012) through them in sequence.

7. The split large-sized satellite fairing according to claim 5, characterized in that, At the edge of the right composite curve section cover (31) of the right composite curve section (30) close to the right composite straight cylinder section (50), there are arranged a rear outer frame (37) of the right composite curve section and a rear inner frame (38) of the right composite curve section; At the edge of the right composite curve section cover (31) close to the right composite straight cylinder section (50), there is arranged a composite material embedded part (01), and both the rear outer frame (37) of the right composite curve section and the rear inner frame (38) of the right composite curve section are L-shaped; The edge of the right composite curve section cover (31) is arranged between the transverse docking plate of the rear outer frame (37) of the right composite curve section and the transverse docking plate of the rear inner frame (38) of the right composite curve section, and is fixed by passing the sixth fastening standard part (09) through the transverse docking plate of the rear outer frame (37) of the right composite curve section, the composite material embedded part (01), and the transverse docking plate of the rear inner frame (38) of the right composite curve section in sequence; At the edge of the right composite straight cylinder section cover (51) of the right composite straight cylinder section (50) close to the right composite curve section (30), there are a front outer frame (56) and a front inner frame (57) of the right composite straight cylinder section; At the edge of the right composite straight cylinder section cover (51) close to one side of the right composite straight cylinder section (50), there is a composite buried part (01). Both the front outer frame (56) and the front inner frame (57) of the right composite straight cylinder section are L-shaped; The edge of the right composite straight cylinder section cover (51) is arranged between the horizontal docking plate of the front outer frame (56) of the right composite straight cylinder section and the horizontal docking plate of the front inner frame (57) of the right composite straight cylinder section, and is fixed by the sixth fastening standard part (09) passing through the horizontal docking plate of the front outer frame (56) of the right composite straight cylinder section, the composite buried part (01), and the horizontal docking plate of the front inner frame (57) of the right composite straight cylinder section in sequence; The vertical docking plate of the rear outer frame (37) of the right composite curve section and the vertical docking plate of the front outer frame (56) of the right composite straight cylinder section are stacked and fixed by the seventh fastening standard part (011) passing through in sequence and cooperating with the floating support plate nut (010) at the end; The vertical docking plate of the front inner frame (57) of the right composite straight cylinder section and the vertical docking plate of the rear inner frame (38) of the right composite curve section are respectively abutted against the rear side of the vertical docking plate of the front outer frame (56) of the right composite straight cylinder section and the front side of the vertical docking plate of the rear outer frame (37) of the right composite curve section, and are fixed by the eighth fastening standard part (012) passing through in sequence.

8. The split large-size satellite fairing according to claim 1, characterized in that At the rear edge of the left composite straight cylinder section cover (41) of the left composite straight cylinder section (40), there are a rear outer frame (48) and a rear inner frame (49) of the left composite straight cylinder section; At the rear edge of the left composite straight cylinder section cover (41), there is a composite buried part (01). Both the rear outer frame (48) and the rear inner frame (49) of the left composite straight cylinder section are L-shaped; The edge of the left composite straight cylinder section cover (41) is arranged between the horizontal docking plate of the rear outer frame (48) of the left composite straight cylinder section and the horizontal docking plate of the rear inner frame (49) of the left composite straight cylinder section, and is fixed by the sixth fastening standard part (09) passing through the horizontal docking plate of the rear outer frame (48) of the left composite straight cylinder section, the composite buried part (01), and the horizontal docking plate of the rear inner frame (49) of the left composite straight cylinder section in sequence; On the front side of the vertical docking plate of the rear outer frame (48) of the left composite straight cylinder section, there is a floating support plate nut (010); At the rear edge of the right composite straight cylinder section cover (51) of the right composite straight cylinder section (50), there are a rear outer frame (58) and a rear inner frame (59) of the right composite straight cylinder section; At the rear edge of the right composite straight cylinder section cover (51), there is a composite buried part (01). Both the rear outer frame (58) and the rear inner frame (59) of the right composite straight cylinder section are L-shaped; The edge of the right composite straight cylinder section cover (51) is arranged between the transverse docking plate of the rear outer frame (58) of the right composite straight cylinder section and the transverse docking plate of the rear inner frame (59) of the right composite straight cylinder section, and is fixed by sequentially passing the sixth fastening standard part (09) through the transverse docking plate of the rear outer frame (58) of the right composite straight cylinder section, the composite material embedded part (01), and the transverse docking plate of the rear inner frame (59) of the right composite straight cylinder section; A floating support plate nut (010) is arranged on the front side of the vertical docking plate of the rear outer frame (58) of the right composite straight cylinder section.

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