Combustion chamber of solid fuel rocket engine

Abstract

The invention relates to the technical field of rocket engine combustion chambers, in particular to a solid fuel rocket engine combustion chamber which comprises a steel belt winding shell assembly, a front connector assembly and a rear connector assembly are arranged at the front end and the rear end of the steel belt winding shell assembly in a penetrating mode respectively, and a heat insulation layer is arranged in the steel belt winding shell assembly in an observing mode. An adhesive layer is arranged outside the heat insulation layer and connected with the front connector assembly, the steel belt winding shell assembly and the rear connector assembly. According to the device, the opening can be effectively and rapidly matched with the two arc-shaped plates, so that the top plate piece can effectively abut against the side wall in the bearing groove, the front connector assembly, the rear connector assembly and the steel belt winding shell assembly can be conveniently connected in an inserted mode, and the connecting firmness of the front connector assembly, the rear connector assembly and the steel belt winding shell assembly is improved; and the gap can be quickly filled through the adhesive layer, so that the connection firmness is improved.

Description

Technical Field

[0001] The invention relates to the technical field of rocket engine combustion chambers, and in particular to a solid fuel rocket engine combustion chamber. Background Art

[0002] The engine combustion chamber casing is an important part of the solid rocket engine. It not only needs to withstand the high temperature and high pressure gas flow, but also various mechanical loads of the missile or rocket during flight. Therefore, the material and design of the engine combustion chamber casing must have excellent strength, rigidity and high temperature resistance, while also reducing the structural mass as much as possible to improve the performance of the missile or rocket.

[0003] The steel belt winding engine combustion chamber casing is an advanced engine component manufacturing technology. The casing is usually made of high-strength steel belt spirally wound. The steel belt has been specially treated to have extremely high strength and toughness. The winding method enables the casing to withstand huge internal pressure and ensure the stability of the structure when the engine is working. In the manufacture of engine casings, the steel belt winding process is mostly used to manufacture lightweight, high-strength casing structures. This kind of casing can not only meet the working requirements of the engine, but also reduce the overall weight of the engine to a certain extent, improve production efficiency, and reduce production costs.

[0004] How to effectively ensure the firmness of the connection between the steel belt components and how to facilitate the rapid assembly of the steel belt wrapped around the engine combustion chamber casing are difficult problems in this field. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a solid fuel rocket engine combustion chamber.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A solid fuel rocket engine combustion chamber, comprising a steel belt wound shell assembly, wherein a front joint assembly and a rear joint assembly are respectively penetrated at the front and rear ends of the steel belt wound shell assembly, an insulation layer is observed inside the steel belt wound shell assembly, an adhesive layer is arranged outside the insulation layer, and the adhesive layer is connected to the front joint assembly, the steel belt wound shell assembly and the rear joint assembly;

[0008] A plurality of bearing grooves are evenly spaced at both ends of the steel strip winding shell assembly, and a plurality of top plates are evenly spaced and fixed at one end of the front joint assembly and the rear joint assembly extending into the steel strip winding shell assembly;

[0009] Multiple top plate members located on the same side extend into the bearing grooves respectively, and an opening is provided at one end of the top plate member close to the steel belt winding shell assembly. Two arc plates are fixed together on the opposite side walls in the bearing groove, and both arc plates are located in the openings. An adaptation mechanism is provided at one end of the bearing groove away from the top plate member, and an insert plate member is provided on the adaptation mechanism, and the insert plate member passes through the top plate member and the two arc plates.

[0010] Compared with the prior art, the present application can effectively make the opening quickly and the two arc-shaped plates cooperate to effectively make the top plate and the side walls in the bearing groove interfere with each other, so that the front joint assembly, the rear joint assembly and the steel strip wrapped shell assembly can be plugged together, thereby improving the firmness of the connection between the front joint assembly, the rear joint assembly and the steel strip wrapped shell assembly, and the gap can be quickly filled through the adhesive layer to improve the firmness of the connection.

[0011] Preferably, the front joint assembly comprises a first insert pipe piece, a first annular groove and a T-shaped pipe piece, wherein the first annular groove is arranged in the first insert pipe piece, and the T-shaped pipe piece is fixed in the first insert pipe piece;

[0012] The rear joint assembly comprises a second insert pipe piece, an annular opening and a second annular groove, wherein the annular opening is arranged at an end of the second insert pipe piece away from the steel belt winding housing assembly, and a second annular groove is arranged in the second insert pipe piece;

[0013] The steel belt winding shell assembly comprises an outer steel belt winding belt and an inner steel belt winding belt, wherein the inner steel belt winding belt is fixed to the middle of the outer steel belt winding belt, the first inserting tube member and the second inserting tube member respectively penetrate the two ends of the outer steel belt winding belt and abut against the two ends of the inner steel belt winding belt, and the adhesive layer is arranged inside the inner steel belt winding belt, the first inserting tube member and the second inserting tube member;

[0014] The bearing groove is arranged on the inner steel belt winding belt, and a plurality of top plate members are respectively fixed on the first inserting tube member and the second inserting tube member.

[0015] Furthermore, in actual production and preparation, the front joint assembly, the steel strip wound shell assembly and the rear joint assembly are all made of 30CrMnSiA. At the same time, the steel strip wound shell assembly is made by steel strip winding molding, and the weight of the rocket engine combustion chamber is only 2.4kg, achieving the maximum weight reduction design.

[0016] Preferably, the T-shaped pipe fitting and the first insert pipe fitting are integrally formed; and the inner steel belt wrapping belt and the outer steel belt wrapping belt are integrally formed.

[0017] Furthermore, the one-piece molding arrangement can fully ensure the firmness of the connection between the components and facilitate the connection and fixation between the corresponding components.

[0018] Preferably, the adaptation mechanism includes two interference blocks sliding in the bearing groove away from the side wall of the top plate member, one side of the two interference blocks is provided with an inclined plate member, one side of the two inclined plate members is fixed with a linkage plate, the linkage plate is slidably installed at the top and bottom of the top plate member, one side of the plug plate member is fixed with a triangular plate member, and the triangular plate member is located between the interference block and the plug plate member.

[0019] Furthermore, as the top plate moves, the top plate can push the linkage plate and the inclined plate to move toward the resistance block. As the resistance block moves, the triangular plate can be pushed to move toward the direction close to the top plate. The triangular plate can push the plug plate and the four-sided cone to be inserted between the top plate, the opening and the two arc plates. Under the action of the triangular plate, the two arc plates can be squeezed to make the top plate open, so as to improve the stability of the top plate in the bearing groove.

[0020] Preferably, the top and bottom of the top plate are penetrated by insertion rods, the top and bottom of the bearing groove are opened with insertion holes, the opposite ends of the two insertion rods respectively abut against the two sides of the insertion plate, and the two ends of the insertion rods extend into the two insertion holes respectively.

[0021] Furthermore, the two plug rods can be separated by the plug plate, so that the plug rods can be inserted into the sockets, thereby further improving the firmness of the connection.

[0022] Preferably, two positioning rods are provided between the two arc-shaped plates, and the two positioning rods are respectively penetrated on the opposite side walls in the bearing groove, and the opposite ends of the two positioning rods respectively abut against the two sides of the plug-in plate, and the two positioning rods respectively extend into the steel belt winding shell assembly and the insulation layer.

[0023] Furthermore, as the plug-in plate extends between the two arc-shaped plates, the plug-in plate can squeeze the positioning rod so that the positioning rod can be inserted into the outer steel belt wrapping belt, which can improve the firmness of the connection.

[0024] Preferably, a four-sided cone piece is fixed to one end of the plug plate away from the triangular plate piece, a four-sided cone slot is formed in one end of the opening away from the bearing slot, and the four-sided cone piece is located in the four-sided cone slot.

[0025] Furthermore, the four-sided cone member can interfere with the insertion rod and the positioning rod and separate them.

[0026] Preferably, a sliding slot is provided at one end of the opening away from the bearing slot, the support rod is slidably installed in the sliding slot, the four-sided conical slot is arranged at one end of the support rod close to the bearing slot, two limit rods are slidably installed in the top plate, the opposite ends of the two limit rods are both located in the sliding slot, and limiting holes are provided at the top and bottom of the bearing slot, and the two limit rods extend into the two limit holes respectively.

[0027] Furthermore, through the interference between the four-sided conical part and the four-sided conical groove, the four-sided conical groove can hold the two limit rods and insert the limit rods into the corresponding limit holes, so that the top plate part and the bearing groove can be connected and fixed, and the front joint assembly, the rear joint assembly and the steel belt winding shell assembly can be fully fixed and connected.

[0028] Preferably, the first insert pipe member and a plurality of top plate members arranged on the side of the front joint assembly close to the inner steel belt winding belt are integrally formed; the second insert pipe member and a plurality of top plate members arranged on the side of the rear joint assembly close to the inner steel belt winding belt are integrally formed.

[0029] Furthermore, the firmness of the connection can be ensured through one-piece molding.

[0030] Preferably, the two arc-shaped plates are arranged in a cylindrical shape, and the diameter of the cylinder formed by the two arc-shaped plates is the same as the diameter of the opening.

[0031] Furthermore, the two arc plates can contact the side walls in the opening, and the plug-in plate can fully ensure that the arc plate, the opening, and the top plate are more stable, so that the top plate and the bearing groove are firmly connected, and the front joint assembly, the rear joint assembly, and the steel belt winding shell assembly are firmly connected.

[0032] The beneficial effects of the present invention are:

[0033] 1. The front joint assembly and the rear joint assembly are made of 30CrMnSiA, which are the interface components of the solid rocket engine. They play the role of fixing the engine and transmitting thrust, and are usually subjected to great mechanical and thermal stresses. The steel belt-wound shell assembly is wound with 30CrMnSiA steel belts, which has excellent tensile strength and toughness. It can withstand large loads while maintaining a light weight, thereby improving energy utilization and product processability. The combustion chamber composed of the front joint assembly, the rear joint assembly and the steel belt-wound shell assembly can provide solid protection for key components such as the propellant and ignition system inside the engine, prevent damage to them by internal and external environmental factors, and withstand the damage caused by the engine when it is working. The huge pressure and impact force generated by the combustion chamber ensure the structural integrity of the engine; the combustion chamber is equipped with an insulation layer to prevent the high-temperature combustion gas in the engine and nozzle from directly acting on the metal shell, preventing the metal shell from being reduced in strength or even damaged due to overheating, and at the same time preventing heat from being transferred to the outside of the engine, protecting the surrounding structures and equipment from being affected by high temperatures; the insulation layer and the combustion chamber are connected by an adhesive layer, which is used to firmly bond the insulation layer and the combustion chamber together. The adhesive is resistant to high temperatures and corrosion, and has high bonding strength, which can ensure the reliability of the connection under the working environment of the engine; at the same time, the combustion chamber engine shell formed by winding with steel belt weighs only 2.4kg, achieving the maximum weight reduction design;

[0034] 2. During actual production and preparation, the adhesive layer can effectively flow into the gaps of the corresponding components to improve the firmness of the interception. At the same time, during assembly, the components can be fully squeezed against each other through the cooperation between the components, and the control rod body can be inserted into the corresponding component to effectively complete the firmness of the connection between the front joint assembly, the steel belt wrapped shell assembly and the rear joint assembly;

[0035] 3. At the same time, the front joint assembly, the steel belt wrapped shell assembly, the rear joint assembly and the top plate are respectively formed integrally with the front joint assembly and the rear joint assembly, which can fully improve the firmness of the components;

[0036] 4. The top plate pushes the linkage plate and the inclined plate to move toward the direction of the resistance block. With the movement of the resistance block, the triangular plate can be pushed to move toward the direction close to the top plate. The triangular plate can push the plug plate and the four-sided cone to be inserted between the top plate, the opening and the two arc plates. Under the action of the triangular plate, the two arc plates can be squeezed to make the top plate open, so as to improve the stability of the top plate in the bearing groove.

[0037] 5. The two plug rods can be separated by the plug plate so that the plug rods can be inserted into the plug hole. As the plug plate extends between the two arc plates, the plug plate can squeeze the positioning rod so that the positioning rod can be inserted into the outer steel belt winding belt; the four-sided tapered member and the four-sided tapered groove can contact each other to make the four-sided tapered groove hold the two limit rods and insert the limit rods into the corresponding limit holes, so that the top plate and the bearing groove can be connected and fixed, and the front joint assembly, the rear joint assembly and the steel belt winding shell assembly can be fully fixed and connected;

[0038] 6. The two arc-shaped plates can contact the side walls in the opening, and the arc-shaped plates, the opening and the top plate can be fully guaranteed to be more stable through the plug-in plate, so that the top plate and the bearing groove are firmly connected, and the front joint assembly, the rear joint assembly and the steel belt wrapped shell assembly are firmly connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural diagram of the present invention;

[0040] Figure 2 is a cross-sectional view of the present invention;

[0041] Figure 3 It is a structural diagram of the first inserting pipe member and the inner steel belt winding belt in the present invention;

[0042] Figure 4 It is a structural diagram of the insert plate and the triangular plate in the present invention;

[0043] Figure 5 The present invention is attached Figure 3 A magnified image of point A;

[0044] Figure 6It is a structural diagram of the support rod and the limit rod in the present invention;

[0045] In the figure: 1 front joint assembly, 101 first insert pipe part, 102 first annular groove, 103 T-type pipe fitting, 2 steel belt wrapped shell assembly, 201 outer steel belt wrapped belt, 202 inner steel belt wrapped belt, 3 insulation layer, 4 rear joint assembly, 401 second insert pipe part, 402 annular opening, 403 second annular groove, 5 adhesive layer, 6 four-sided cone part, 7 insert plate part, 8 triangular plate part, 9 inclined plate part, 10 linkage plate, 11 resistance block, 12 insert rod, 13 four-sided cone groove, 14 opening, 15 top plate part, 16 arc plate, 17 insert hole, 18 bearing groove, 19 positioning rod, 20 limiting hole, 21 sliding slot, 22 limiting rod, 23 support rod. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0047] Reference Figure 1-6 A solid fuel rocket engine combustion chamber comprises a steel strip wound shell assembly 2, a front joint assembly 1 and a rear joint assembly 4 are respectively penetrated at the front and rear ends of the steel strip wound shell assembly 2, an insulation layer 3 is observed inside the steel strip wound shell assembly 2, an adhesive layer 5 is arranged outside the insulation layer 3, and the adhesive layer 5 is connected with the front joint assembly 1, the steel strip wound shell assembly 2 and the rear joint assembly 4; in actual production and preparation, the front joint assembly 1 and the rear joint assembly 4 are made of 30CrMnSiA, which are interface components of the solid rocket engine, and play the role of fixing the engine and transmitting thrust. The heat insulating layer 3 and the combustion chamber are usually subjected to great mechanical and thermal stresses; the heat insulating layer 3 and the combustion chamber are connected by an adhesive layer 5, and the heat insulating layer 3 and the combustion chamber are firmly bonded together by the adhesive layer 5. The adhesive is resistant to high temperature and corrosion, and has high bonding strength, which can ensure the reliability of the connection under the engine working environment, and the adhesive layer 5 can flow into the gap between the front joint assembly 1, the steel belt wrapped shell assembly 2 and the rear joint assembly 4, which can improve the firmness of the connection. During actual production and preparation, the front joint assembly 1, the steel belt wrapped shell assembly 2 and the rear joint assembly 4 will also be fixedly connected.

[0048] Reference Figure 3 , 5A plurality of bearing grooves 18 are evenly spaced at both ends of the steel strip winding shell assembly 2, and a plurality of top plate members 15 are evenly spaced and fixed to one end of the front joint assembly 1 and the rear joint assembly 4 extending into the steel strip winding shell assembly 2; the top plate members 15 and the top plate members 15 can correspond stably, so that the front joint assembly 1, the steel strip winding shell assembly 2 and the rear joint assembly 4 can be assembled, and the firmness of the connection can be fully guaranteed, and after the connection is completed, the adhesive layer 5 can also enter the gap in the bearing groove 18, so that the top plate member 15 and the bearing groove 18 are firmly connected.

[0049] Reference Figure 3-6 , multiple top plate members 15 located on the same side extend into the bearing groove 18 respectively, an opening 14 is provided at one end of the top plate member 15 close to the steel belt winding shell assembly 2, and an opening 14 is provided at one end of the top plate member 15 close to the inner steel belt winding belt 202, the opening 14 is composed of a circular hole and a through hole, which can facilitate the plug-in member 7 to drive the four-sided cone member 6 to pass through the through hole and enter the circular hole, and two arc plates 16 are fixed on the opposite side walls in the bearing groove 18, and the two arc plates 16 are both located in the opening 14, and the bearing An adaption mechanism is provided at one end of the groove 18 away from the top plate 15, and an insert plate 7 is provided on the adaption mechanism. The insert plate 7 passes through the top plate 15 and the two arc-shaped plates 16. At the same time, the top plate 15 moves into the bearing groove 18, so that the through-opening can squeeze the arc-shaped plates 16. Both sides of the through-opening are arc-shaped and can be squeezed by the arc-shaped plates 16, so that the arc-shaped plates 16 can enter the opening 14 and contact the side walls of the opening 14, thereby completing the preliminary connection between the top plate 15 and the steel belt winding shell assembly 2.

[0050] Reference Figure 1-3The front joint component 1 includes a first insert pipe member 101, a first annular groove 102 and a T-shaped pipe member 103, the first annular groove 102 is arranged in the first insert pipe member 101, and the T-shaped pipe member 103 is fixed in the first insert pipe member 101; the rear joint component 4 includes a second insert pipe member 401, an annular opening 402 and a second annular groove 403, the annular opening 402 is arranged at one end of the second insert pipe member 401 away from the steel belt winding shell component 2, and the second annular groove 403 is arranged in the second insert pipe member 401; the steel belt winding shell component 2 includes an outer steel belt winding belt 201 and an inner steel belt winding belt 202, the inner steel belt winding belt 202 is fixed in the middle of the outer steel belt winding belt 201, the first insert pipe member 101 and the second insert pipe member 401 respectively penetrate the two ends of the outer steel belt winding belt 201 and abut against the two ends of the inner steel belt winding belt 202, the adhesive layer 5 is arranged inside the inner steel strip winding belt 202, the first inserting pipe member 101 and the second inserting pipe member 401; the bearing groove 18 is opened on the inner steel strip winding belt 202, and the plurality of top plates 15 are respectively fixed on the first inserting pipe member 101 and the second inserting pipe member 401; the T-shaped pipe member 103 and the first inserting pipe member 101 are integrally formed; the inner steel strip winding belt 202 and the outer steel strip winding belt 201 are integrally formed, which can fully realize the connection and fixation between the front joint component 1, the steel strip winding housing component 2 and the rear joint component 4; the first inserting pipe member 101 and the plurality of top plates 15 arranged on the side of the front joint component 1 close to the inner steel strip winding belt 202 are integrally formed; the second inserting pipe member 401 and the plurality of top plates 15 arranged on the side of the rear joint component 4 close to the inner steel strip winding belt 202 are integrally formed; the integral forming can ensure the firmness of the connection.

[0051] Reference Figure 3-5 The adaptability mechanism includes two abutment blocks 11 that slide in the bearing groove 18 away from the side wall of the top plate member 15, one side of the two abutment blocks 11 are provided with an inclined plate member 9, and one side of the two inclined plate members 9 is fixed with a linkage plate 10, and the linkage plate 10 is slidably installed at the top and bottom of the top plate member 15, and a triangular plate member 8 is fixed on one side of the plug plate member 7, and the triangular plate member 8 is located between the abutment block 11 and the plug plate member 7. With the movement of the top plate member 15, the top plate member 15 can push the linkage plate 10 and the inclined plate member 9 to move toward the direction of the abutment block 11. With the movement of the abutment block 11, the triangular plate member 8 can be pushed to move toward the direction close to the top plate member 15, and the triangular plate member 8 can push the plug plate member 7 and the four-sided cone member 6 to be inserted between the top plate member 15, the opening 14 and the two arc plates 16, and can squeeze the two arc plates 16 under the action of the triangular plate member 8 to make the top plate member 15 open, so as to improve the stability of the top plate member 15 in the bearing groove 18.

[0052] Reference Figure 3-6, the top and bottom of the top plate 15 are penetrated by plug rods 12, and the top and bottom of the bearing groove 18 are opened with plug holes 17, the opposite ends of the two plug rods 12 are respectively in contact with the two sides of the plug plate 7, and the two ends of the plug rods 12 extend into the two plug holes 17 respectively; the two plug rods 12 can be separated by the action of the plug plate 7, so that the plug rods 12 can be inserted into the plug holes 17, thereby improving the firmness of the connection.

[0053] Reference Figure 3-6 Two positioning rods 19 are provided between the two arc-shaped plates 16. The two positioning rods 19 are respectively passed through the opposite side walls in the bearing groove 18. The opposite ends of the two positioning rods 19 are respectively in contact with the two sides of the plug-in plate 7. The two positioning rods 19 extend into the steel belt winding shell assembly 2 and the insulation layer 3 respectively. As the plug-in plate 7 extends between the two arc-shaped plates 16, the plug-in plate 7 can squeeze the positioning rods 19 so that the positioning rods 19 can be inserted into the outer steel belt winding belt 201, which can improve the firmness of the connection.

[0054] Reference Figure 3-6 A four-sided cone member 6 is fixed to one end of the plug plate member 7 away from the triangular plate member 8, and a four-sided cone groove 13 is opened in the opening 14 at one end away from the bearing groove 18, and the four-sided cone member 6 is located in the four-sided cone groove 13; through the arrangement of the four-sided cone member 6, it can conflict with the insertion rod 12 and the positioning rod 19 and separate them.

[0055] Reference Figure 3-6 A sliding slot 21 is provided at one end of the opening 14 away from the bearing slot 18, and a support rod 23 is slidably installed in the sliding slot 21. The four-sided tapered slot 13 is arranged at one end of the support rod 23 close to the bearing slot 18. Two limit rods 22 are slidably installed in the top plate 15, and the opposite ends of the two limit rods 22 are both located in the sliding slot 21. Limiting holes 20 are provided at the top and bottom of the bearing slot 18, and the two limit rods 22 extend into the two limit holes 20 respectively; through the interference between the four-sided tapered member 6 and the four-sided tapered slot 13, the four-sided tapered slot 13 can hold the two limit rods 22 in place, and the limit rods 22 are inserted into the corresponding limit holes 20, so that the top plate 15 and the bearing slot 18 can be connected and fixed, and the front joint assembly 1, the rear joint assembly 4 and the steel belt winding shell assembly 2 can be fully fixed and connected.

[0056] In the present invention, the two arc plates 16 are arranged in a cylindrical shape, and the diameter of the cylinder formed by the two arc plates 16 is the same as the diameter of the opening 14; the two arc plates 16 can resist the side wall inside the opening 14, and the arc plates 16, the opening 14, and the top plate member 15 can be fully guaranteed to be more stable through the plug-in plate member 7, so that the top plate member 15 and the bearing groove 18 are firmly connected, so that the front joint assembly 1, the rear joint assembly 4 and the steel belt winding shell assembly 2 are firmly connected.

[0057] In the present invention, the front joint assembly 1 and the rear joint assembly 4 are made of 30CrMnSiA, which are interface components of the solid rocket engine, play the role of fixing the engine and transmitting thrust, and are usually subjected to great mechanical stress and thermal stress; the steel belt wrapped shell assembly 2 is also supported by 30CrMnSiA; the thermal insulation layer 3 and the combustion chamber are connected by an adhesive layer 5, and the thermal insulation layer 3 and the combustion chamber are firmly bonded together by the adhesive layer 5. The adhesive is resistant to high temperature and corrosion, and has high bonding strength, which can ensure the reliability of the connection under the working environment of the engine, and the adhesive layer 5 can flow into the gap between the front joint assembly 1, the steel belt wrapped shell assembly 2 and the rear joint assembly 4, which can improve the firmness of the connection;

[0058] Pushing the front joint assembly 1 and the rear joint assembly 4 to insert into the steel belt winding shell assembly 2 can make the top plate 15 inserted into the bearing groove 18, and the top plate 15 pushes the linkage plate 10 and the inclined plate 9 to move toward the direction of the abutment block 11. With the movement of the abutment block 11, the triangular plate 8 can be pushed to move toward the direction close to the top plate 15, and the triangular plate 8 can push the plug plate 7 and the four-sided cone 6 to be inserted between the top plate 15, the opening 14 and the two arc plates 16. Under the action of the triangular plate 8, the two arc plates 16 can be squeezed to make the top plate 15 open, so as to improve the stability of the top plate 15 in the bearing groove 18;

[0059] The two insertion rods 12 can be separated by the action of the plug plate 7, so that the insertion rod 12 can be inserted into the insertion hole 17. As the plug plate 7 extends between the two arc-shaped plates 16, the plug plate 7 can squeeze the positioning rod 19, so that the positioning rod 19 can be inserted into the outer steel belt winding belt 201; the four-sided cone member 6 and the four-sided cone groove 13 can make the four-sided cone groove 13 contact the two limit rods 22, and the limit rods 22 are inserted into the corresponding limit holes 20, so that the top plate member 15 and the bearing groove 18 can be connected and fixed, and the front joint assembly 1, the rear joint assembly 4 and the steel belt winding shell assembly 2 can be fully fixed and connected;

[0060] The two arc plates 16 can contact the side walls in the opening 14, and the insert plate 7 can fully ensure that the arc plates 16, the opening 14, and the top plate 15 are more stable, so that the top plate 15 and the bearing groove 18 are firmly connected, and the front joint assembly 1, the rear joint assembly 4 and the steel belt winding shell assembly 2 are firmly connected.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A solid fuel rocket engine combustion chamber, comprising a steel strip wound shell assembly (2), characterized in that: The front and rear ends of the steel strip winding shell assembly (2) are respectively penetrated by a front joint assembly (1) and a rear joint assembly (4); a heat insulating layer (3) is provided inside the steel strip winding shell assembly (2); an adhesive layer (5) is provided outside the heat insulating layer (3); and the adhesive layer (5) is connected to the front joint assembly (1), the steel strip winding shell assembly (2) and the rear joint assembly (4); A plurality of bearing grooves (18) are evenly spaced at both ends of the steel strip winding shell assembly (2); and a plurality of top plate members (15) are evenly spaced and fixed to one end of the front joint assembly (1) and the rear joint assembly (4) extending into the steel strip winding shell assembly (2); A plurality of top plate members (15) located on the same side extend into the bearing groove (18) respectively. An opening (14) is provided at one end of the top plate member (15) close to the steel strip winding shell assembly (2). Two arc plates (16) are fixed together on the opposite side walls in the bearing groove (18). Both arc plates (16) are located in the opening (14). An adaption mechanism is provided at one end of the bearing groove (18) away from the top plate member (15). An insert plate member (7) is provided on the adaption mechanism. The insert plate member (7) passes through between the top plate member (15) and the two arc plates (16).

2. A solid fuel rocket engine combustion chamber according to claim 1, characterized in that: The front joint assembly (1) comprises a first inserting pipe member (101), a first annular groove (102) and a T-shaped pipe member (103), wherein the first annular groove (102) is arranged in the first inserting pipe member (101), and the T-shaped pipe member (103) is fixed in the first inserting pipe member (101); The rear joint assembly (4) comprises a second insert tube (401), an annular opening (402) and a second annular groove (403), wherein the annular opening (402) is arranged at an end of the second insert tube (401) away from the steel belt winding shell assembly (2), and the second annular groove (403) is arranged in the second insert tube (401); The steel belt winding shell assembly (2) comprises an outer steel belt winding belt (201) and an inner steel belt winding belt (202), wherein the inner steel belt winding belt (202) is fixed to the middle part of the outer steel belt winding belt (201), the first inserting pipe piece (101) and the second inserting pipe piece (401) respectively penetrate through the two ends of the outer steel belt winding belt (201) and abut against the two ends of the inner steel belt winding belt (202), and the adhesive layer (5) is arranged inside the inner steel belt winding belt (202), the first inserting pipe piece (101) and the second inserting pipe piece (401); The bearing groove (18) is provided on the inner steel belt winding belt (202), and a plurality of top plate members (15) are respectively fixed on the first inserting pipe member (101) and the second inserting pipe member (401).

3. A solid fuel rocket engine combustion chamber according to claim 2, characterized in that: The T-shaped pipe fitting (103) and the first pipe inserting fitting (101) are integrally formed; and the inner steel belt wrapping band (202) and the outer steel belt wrapping band (201) are integrally formed.

4. A solid fuel rocket engine combustion chamber according to claim 1, characterized in that: The adaptability mechanism comprises two abutment blocks (11) sliding in the bearing groove (18) away from the side wall of the top plate member (15), one side of the two abutment blocks (11) is provided with an inclined plate member (9), one side of the two inclined plate members (9) is fixed with a linkage plate (10), the linkage plate (10) is slidably mounted at the top and bottom of the top plate member (15), one side of the plug plate member (7) is fixed with a triangular plate member (8), and the triangular plate member (8) is located between the abutment blocks (11) and the plug plate member (7).

5. A solid fuel rocket engine combustion chamber according to claim 4, characterized in that: The top and bottom of the top plate (15) are penetrated by an insertion rod (12), and the top and bottom of the bearing groove (18) are provided with an insertion hole (17). The opposite ends of the two insertion rods (12) respectively abut against the two sides of the insertion plate (7), and the two ends of the insertion rod (12) respectively extend into the two insertion holes (17).

6. A solid fuel rocket engine combustion chamber according to claim 5, characterized in that: Two positioning rods (19) are arranged between the two arc-shaped plates (16). The two positioning rods (19) are respectively penetrated on opposite side walls in the bearing groove (18). The opposite ends of the two positioning rods (19) are respectively in contact with the two sides of the plug-in plate (7). The two positioning rods (19) are respectively extended into the steel belt winding shell assembly (2) and the insulation layer (3).

7. A solid fuel rocket engine combustion chamber according to claim 6, characterized in that: A four-sided cone (6) is fixed to one end of the plug plate (7) away from the triangular plate (8), a four-sided cone groove (13) is formed in one end of the opening (14) away from the bearing groove (18), and the four-sided cone (6) is located in the four-sided cone groove (13).

8. A solid fuel rocket engine combustion chamber according to claim 1, characterized in that: A sliding slot (21) is provided at one end of the opening (14) away from the bearing slot (18), the support rod (23) is slidably installed in the sliding slot (21), the four-sided cone groove (13) is arranged at one end of the support rod (23) close to the bearing slot (18), two limiting rods (22) are slidably installed in the top plate (15), the opposite ends of the two limiting rods (22) are both located in the sliding slot (21), and limiting holes (20) are provided at the top and bottom of the bearing slot (18), and the two limiting rods (22) extend into the two limiting holes (20) respectively.

9. A solid fuel rocket engine combustion chamber according to claim 2, characterized in that: The first insert pipe member (101) and a plurality of top plate members (15) arranged on a side of the front joint assembly (1) close to the inner steel belt wrapping band (202) are integrally formed; the second insert pipe member (401) and a plurality of top plate members (15) arranged on a side of the rear joint assembly (4) close to the inner steel belt wrapping band (202) are integrally formed.

10. A solid fuel rocket engine combustion chamber according to claim 1, characterized in that: The two arc-shaped plates (16) are arranged in a cylindrical shape, and the diameter of the cylinder formed by the two arc-shaped plates (16) is the same as the diameter of the opening (14).

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