A winding method for an integrated composite combustion chamber shell with a skirt

Abstract

An integrated composite combustion chamber casing with a skirt and a method thereof include an insulation layer, a skirt wrapping mold, a head, and a wrapping layer. The insulation layer is disposed on the outer surface of a core mold, and the head is disposed at the front and rear ends of the core mold. The skirt wrapping mold is disposed outside the front or rear head. The wrapping layer is disposed outside the insulation layer and comprises a plurality of alternating longitudinal and circumferential yarn layers. The integrated composite skirt of the present invention is lighter than a metal skirt, has a higher bond strength with the casing, and can reinforce the head.

Description

Technical Field

[0001] The present invention belongs to the technical field of composite combustion chamber shells, and in particular relates to a winding method for an integrated composite combustion chamber shell containing a skirt. Background Art

[0002] The skirt is the connecting section between the rocket engine and the payload compartment, or between different stages of a multi-stage rocket. Traditionally, skirts were made of high-strength metals, but composite materials are now also being used to reduce weight. During the winding shell manufacturing process, a pre-fabricated skirt is typically placed over the shell head after the shell winding is essentially complete. Fiber is then wrapped around the skirt, and after curing, the skirt and shell are tightly integrated. The addition of the skirt can easily damage the already wound fibers and alter their tension, affecting product quality. Summary of the Invention

[0003] The object of the present invention is to provide an integrated composite combustion chamber shell with a skirt and a winding method to solve the above problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An integrated composite combustion chamber shell with a skirt comprises an insulating layer, a skirt wrapping mould, a head and a winding layer; the insulating layer is arranged on the outer surface of a core mould, and the head is arranged at the front and rear ends of the core mould; the skirt wrapping mould is arranged on the outside of the front head or the rear head; the winding layer is arranged on the outside of the insulating layer, and the winding layer comprises a plurality of alternately distributed longitudinal wire layers and surrounding wire layers.

[0006] Furthermore, the outer circle of the skirt wrapping mold is coaxial with the core mold and is fixed on the axis of the core mold.

[0007] Furthermore, the skirt wrapping mold is made into an integral mold with a certain taper or a decomposable splicing type.

[0008] Furthermore, the top of the skirt wrapping mold is in a conforming wrapping layer shape or a rounded corner shape.

[0009] Furthermore, the inner diameter of the contact point between the winding layer and the head is smaller than or equal to the maximum outer diameter of the metal part embedded in the head.

[0010] Furthermore, the end of the winding layer is embedded in the metal ring, and the metal ring is fixed by the riveting action between the rubber-containing fiber with tension and the annular groove at the connection of the metal ring.

[0011] Furthermore, a method for winding an integrated composite combustion chamber shell including a skirt comprises the following steps:

[0012] i. The laying head of the tubular laying machine lays a longitudinal layer of yarn to the right around the mandrel outside the mandrel. After the laying head passes the equator of the head, the shrinking ring of the laying machine moves inward to compress the tubular yarn bundle and press it against the mandrel. The mandrel then rotates half a circle, and the shrinking ring moves outward to release the tubular yarn bundle. The laying head lays a longitudinal layer of yarn to the left. After the laying head passes the equator of the head, the shrinking ring of the laying machine moves inward to compress the tubular yarn bundle and press it against the mandrel. The mandrel then rotates half a circle, and the shrinking ring moves outward to release the tubular yarn bundle.

[0013] ⅱ. The right wrapper of the cylindrical fiber laying machine winds the surrounding silk layer from the equator to the left to the equator of the left end cap;

[0014] ⅲ. Paste reinforcement material on the outside of the longitudinal yarn layer of the right and left head seals; the wire laying head lays the longitudinal yarn layer to the right around the mandrel. After the wire laying head passes the equator of the right head seal, the shrinking ring of the wire laying machine moves inward to compress the tubular yarn tow and press it tightly against the mandrel. The mandrel then rotates half a circle, and the shrinking ring moves outward to release the tubular yarn tow. The wire laying head lays the longitudinal yarn layer to the left. After the wire laying head passes the equator of the head seal, the shrinking ring of the wire laying machine moves inward to compress the tubular yarn tow and press it tightly against the mandrel. The mandrel then rotates half a circle, and the shrinking ring moves outward to release the tubular yarn tow.

[0015] ⅳ. Repeat steps ⅰ to ⅲ according to the design to make the winding thickness meet the requirements;

[0016] ⅴ. Install the skirt mold outside the rotating shaft on the right side of the core mold, and place the left end of the skirt mold close to the head;

[0017] ⅵ. The wire laying head moves longitudinally around the core mold to the right until the right end of the skirt mold;

[0018] ⅶ. The left wrapper of the wire laying machine winds the wire layer from the left equator to the right to the right end baffle of the skirt mold;

[0019] ⅷ. The equator line from the left longitudinal wire layer to the right sealing head;

[0020] ⅸ. The right wrapper of the wire laying machine wraps the wire layer from the left end of the skirt mold to the right to the equator of the right head;

[0021] ⅹⅰ. Repeat ⅵ~ⅸ;

[0022] ⅹⅱ. The last longitudinal silk layer is wound from the left end of the skirt mold to the right to the left end and twisted 180° to stop; then the right end baffle of the self-wrapped skirt mold on the right side wraps the silk layer to the left to the equator of the left end, and finally cuts all the yarns on the silk laying head at the root of the left end;

[0023] ⅹⅲ. After being heated and cured in a curing oven, the skirt-wrapped mold and the core mold are removed, and finally the skirt is machined to obtain an integrated composite combustion chamber with a skirt.

[0024] Furthermore, when the inner diameter of the contact point between the winding layer and the head is less than or equal to the maximum outer diameter of the metal parts embedded in the head, the wire laying head lays the wire to the left after the skirt winding mold is installed, and then the right side surrounding head surrounds it to the left. When it reaches the equator, the wire laying on the approximately cylindrical surface shrinks toward the axial direction under the action of the annular yarn and adheres tightly to the head and the skirt winding mold. The surrounding head is controlled to wind back and forth left and right in this range to fill the space. After the annular yarn reaches the equator, it is wrapped around the groove part and then filled upward. Axial wire laying is added during the skirt laying.

[0025] Compared with the prior art, the present invention has the following technical effects:

[0026] 1. The overall weight of the present invention is lighter. The integrated composite skirt eliminates the need for winding to connect the skirt to the shell. The composite skirt is lighter than a metal skirt.

[0027] 2. The bonding strength between the skirt and the shell is higher because the skirt and the shell are wound together in one go, using the same materials and having a strong bonding strength;

[0028] 3. It has a great effect on enhancing the strength of the shell head. The head can be strengthened separately as needed, eliminating the need for traditional reinforcing materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of a winding method for an integrated composite combustion chamber shell with a skirt

[0030] Figure 2 Schematic diagram of an integrated composite combustion chamber shell with a skirt

[0031] Figure 3 An enlarged schematic diagram of a winding method including the connection between the skirt and the shell

[0032] Figure 4 Schematic diagram of the large rounded skirt root winding with equatorial reinforcement

[0033] Figure 5 Schematic diagram of the large rounded skirt with equatorial reinforcement

[0034] Figure 6 Schematic diagram of the integrated skirt with the function of head reinforcement and wrapping

[0035] Figure 7 Schematic diagram of the wrapping process for the integrated skirt with the function of head reinforcement

[0036] Figure 8 Schematic diagram of an integrated skirt that has the function of head reinforcement and wrapping and includes a skirt end metal ring

[0037] Among them: 01 - insulation layer, 02 - head flange, 03 - skirt wrapping mold, 04 - skirt, 05 - head, 06 - longitudinal wire, 07 - longitudinal wire, 08 - surrounding wire, 09 - longitudinal wire, 10 - longitudinal wire, 11 - longitudinal wire, 12 - surrounding wire, 13 - surrounding wire, 14 - surrounding wire, 15 - longitudinal wire, 16 - surrounding wire, 17 - longitudinal wire, 18 - surrounding wire, 19 - reinforcement material, 20 - equator line, 21 - traditional shell winding part, 22 - integrated winding composite skirt, 23 - right axial yarn pressed into the head, 24 - circumferential yarn, 25 - right axial yarn pressed into the head, 26 - left axial yarn, 27 - circumferential yarn, 28 - right axial yarn, 30 - metal ring. DETAILED DESCRIPTION

[0038] The present invention is further described below with reference to the accompanying drawings:

[0039] See also Figures 1 to 8 , winding method of integrated composite combustion chamber shell,

[0040] A cylindrical wire laying machine with a wrapping function is used, and a skirt winding mold is made. Fiber winding is performed on a core mold or a core mold with an insulation layer and front and rear heads by longitudinal wire laying and circumferential winding. After the winding of the combustion chamber pressure shell is completed, a skirt winding mold coaxial with the core mold is added to the front head or the rear head. The tubular skirt with the same outer diameter as the shell is continued to be made by longitudinal wire laying and circumferential winding. After curing, the mold is demoulded to obtain a skirt integrated with the composite combustion chamber.

[0041] The skirt wrapping mold is fixed on the axis of the core mold, and the outer circle of the skirt wrapping mold is coaxial with the core mold.

[0042] The skirt wrapping mold is made into an integral mold with a certain taper.

[0043] The skirt wrapping mold is a detachable and spliced type.

[0044] Winding process steps for an integrated composite combustion chamber with a skirt:

[0045] i. The laying head of the tubular laying machine lays longitudinal yarn 06 to the right around the mandrel outside the core mold. After the laying head passes the equator of the head, the shrinking ring of the laying machine moves inward to compress the tubular yarn tow and press it against the mandrel. Then, the mandrel rotates half a circle, the shrinking ring moves outward to release the tubular yarn tow. The laying head lays longitudinal yarn 07 to the left. After the laying head passes the equator of the head, the shrinking ring of the laying machine moves inward to compress the tubular yarn tow and press it against the mandrel. Then, the mandrel rotates half a circle, the shrinking ring moves outward to release the tubular yarn tow.

[0046] ⅱ. The right surround of the cylindrical wire laying machine winds the wire 08 from the equator to the left to the equator of the left end cap;

[0047] ⅲ. Attach reinforcement material 19 to the outside of the longitudinal wire 07 of the right and left head seals; the wire placement head places the longitudinal wire 09 to the right around the mandrel. After the wire placement head passes over the equator of the right head seal, the pinch ring of the wire placement machine moves inward, compressing the tubular wire tow tightly against the mandrel. The mandrel then rotates half a circle, and the pinch ring moves outward to release the tubular wire tow. The wire placement head places the longitudinal wire 10 to the left. After the wire placement head passes over the equator of the head seal, the pinch ring of the wire placement machine moves inward, compressing the tubular wire tow tightly against the mandrel. The mandrel then rotates half a circle, and the pinch ring moves outward to release the tubular wire tow.

[0048] ⅳ. Repeat steps ⅰ to ⅲ according to the design to make the winding thickness meet the requirements;

[0049] ⅴ. Install the skirt mold 03 outside the rotating shaft on the right side of the core mold, and place the left end of the skirt mold 03 close to the head;

[0050] ⅵ. The wire laying head is placed around the core mold to the right longitudinal wire 11 until the right end of the skirt wrapped mold 03;

[0051] ⅶ. The left surround of the wire laying machine is wound around the wire 12 from the left equator to the right to the right end of the skirt mold baffle;

[0052] ⅷ. The wire laying head moves longitudinally to the left of the wire 13 to the vicinity of the equator of the right end cap;

[0053] ⅸ. The right side of the wire laying machine is wound around the left end of the skirt mold from the right to the right around the wire 12 to the equator of the right head;

[0054] ⅹⅰ. Repeat ⅵ~ⅸ;

[0055] ⅹⅱ the last layer of longitudinal wire 17 self-wrapped skirt mold 03 left end to the right to the left end and twisted 180 ° to stop; then the right side of the self-wrapped skirt mold right end baffle to the left around the wire 21 to the equator of the left end, and finally cut all the yarns on the root of the left end head wire shop head;

[0056] ⅹⅲ. After being heated and cured in a curing oven, the skirt-wrapped mold 03 and the core mold are removed, and finally the skirt is machined, and the integrated composite combustion chamber with the skirt is completed.

[0057] The inner diameter of the contact point between the inner side of the skirt and the head can be reduced to increase the contact area.

[0058] The inner diameter of the contact point between the inner side of the skirt and the head is reduced to less than or equal to the maximum outer diameter of the metal parts embedded in the head, so that the contact area is increased.

[0059] Increasing the thickness of the skirt increases the contact area between the skirt end and the and reduces the pressure.

[0060] A metal ring is embedded in the skirt end, and a connecting hole is made on the metal ring.

[0061] Example 1:

[0062] See also Figures 1 to 3 . The present invention provides a winding method for an integrated composite combustion chamber shell containing a skirt, which uses a cylindrical wire laying machine with a winding function, and adopts polytetrafluoroethylene to make a skirt winding mold whose outer circle is coaxial with the core mold. The fibers are first wound on the core mold or the core mold with an insulation layer and front and rear heads by longitudinal wire laying and circumferential winding. After the winding of the combustion chamber pressure shell is completed, a skirt winding mold is added to the front head or the rear head, and a tubular skirt with the same outer diameter as the shell is produced by longitudinal wire laying and circumferential winding. After curing, the mold is demolded to obtain a composite material skirt integrated with the composite combustion chamber. To facilitate demolding, the skirt winding mold is made of polytetrafluoroethylene into an integral mold with a certain taper. Metal can also be used to make a decomposable spliced skirt winding mold. The winding process steps of the integrated composite combustion chamber with a skirt are as follows:

[0063] i. The laying head of the tubular laying machine lays longitudinal yarn 06 to the right around the mandrel outside the core mold. After the laying head passes the equator of the head, the shrinking ring of the laying machine moves inward to compress the tubular yarn tow and press it against the mandrel. Then, the mandrel rotates half a circle, the shrinking ring moves outward to release the tubular yarn tow. The laying head lays longitudinal yarn 07 to the left. After the laying head passes the equator of the head, the shrinking ring of the laying machine moves inward to compress the tubular yarn tow and press it against the mandrel. Then, the mandrel rotates half a circle, the shrinking ring moves outward to release the tubular yarn tow.

[0064] ⅱ. The right surround of the cylindrical wire laying machine winds the wire 08 from the equator to the left to the equator of the left end cap;

[0065] ⅲ. Attach reinforcement material 19 to the outside of the longitudinal wire 07 of the right and left head seals; the wire placement head places the longitudinal wire 09 to the right around the mandrel. After the wire placement head passes over the equator of the right head seal, the pinch ring of the wire placement machine moves inward, compressing the tubular wire tow tightly against the mandrel. The mandrel then rotates half a circle, and the pinch ring moves outward to release the tubular wire tow. The wire placement head places the longitudinal wire 10 to the left. After the wire placement head passes over the equator of the head seal, the pinch ring of the wire placement machine moves inward, compressing the tubular wire tow tightly against the mandrel. The mandrel then rotates half a circle, and the pinch ring moves outward to release the tubular wire tow.

[0066] ⅳ. Repeat steps ⅰ to ⅲ according to the design to make the winding thickness meet the requirements;

[0067] ⅴ. Install the skirt mold outside the rotating shaft on the right side of the core mold, and place the left end of the skirt mold close to the head;

[0068] ⅵ. The wire laying head is placed around the core mold to the right longitudinal wire 11 until the right end of the skirt wrapped mold;

[0069] ⅶ. The left surround of the wire laying machine is wound around the wire 12 from the left equator to the right to the right end of the skirt mold baffle;

[0070] ⅷ. The wire laying head moves longitudinally to the left of the wire 13 to the vicinity of the equator of the right end cap;

[0071] ⅸ. The right side of the wire laying machine is wound around the left end of the skirt mold from the right to the right around the wire 12 to the equator of the right head;

[0072] ⅹⅰ. Repeat ⅵ~ⅸ;

[0073] ⅹⅱ the last layer of longitudinal wire 17 self-wrapped skirt mold left end to the right to the left end and twisted 180 ° to stop; then the right side of the self-wrapped skirt mold right end baffle to the left around the wire 21 to the equator of the left end, and finally cut all the yarns on the root of the left end head shop head;

[0074] ⅹⅲ. After being heated and cured in a curing oven, the skirt-wrapped mold and the core mold are removed, and finally the skirt is machined, and the integrated composite combustion chamber with the skirt is completed.

[0075] Example 2:

[0076] See also Figure 4 . This is a structural type of an integrated composite combustion chamber shell containing a skirt according to the present invention. The top of the skirt winding die is deliberately made into a rounded corner, and the inner diameter of the contact point between the inner side of the skirt and the head is reduced, so that the contact area between the skirt and the head is increased. At point B, the outer surface is finally kept flat by repeated axial laying and circumferential winding. The main benefit of this is that the contact area between the skirt and the head is increased. Even if delamination and cracking occur at the connection between the head and the skirt at point B during engine operation, it will not affect the normal use of the skirt. If the skirt is under pressure, the larger contact area between the skirt and the head can still bear the load force; if it is under tension, because the non-sealed axial yarns on the outermost and innermost sides of the skirt are directly laid continuously from the other end of the shell, they have sufficient tensile strength to withstand the tension. Since the axial yarns and the circumferential yarns are always under constant tension during the winding process of the skirt, the part of the skirt at the equator line A of the head and the nearby point B can bear a large circumferential tension, which has a significant reinforcement effect on the head end. The winding method is basically the same as that in Example 1 and need not be repeated.

[0077] Example 3:

[0078] See also Figure 5 、 6, 7. This is another structural type of an integrated composite combustion chamber shell containing a skirt according to the present invention. Not only is the top B of the skirt wrapping mold intentionally made into a large radius, but the inner diameter of the contact between the inner side of the skirt and the head is further reduced at C to a value less than or equal to the maximum outer diameter of the metal part embedded in the head, so that the contact area is increased. The winding method at C is to increase the thickness and diameter of the axial yarn by winding a sufficient amount of circumferential yarn on the axial yarn. The circumferential yarn will not be exposed to the outside and will not scatter after solidification because it is wrapped by the axial yarn. Since the axial yarn and the circumferential yarn are always under constant tension during the winding process of the skirt at C, the overall structure can withstand a larger circumferential tension after solidification, which has a significant effect on improving the shell strength at the head. In this example, the thickness of the skirt at D is also increased to increase the contact area between the skirt end and and, reduce the pressure, and improve reliability during use. For details of the winding method, see Figure 7 After the skirt wrapping mold is installed, the wire laying head lays the wire 11 to the left, and then the right side wrapping head wraps to the left. Figure 6 After the equator line at point A shown, the approximately cylindrical surface of the laying yarn 11 shrinks in the axial direction under the action of the hoop yarn 12 and sticks to the wind throw and skirt winding mold, and controls the surrounding head to wind back and forth in this range to fill the space. In order to prevent the hoop yarn from slipping, the hoop yarn is wound around the groove part after it reaches the equator line, and then fills upward. After solidification, these hoop yarns will be able to bear the hoop tension around the axis of the shell at the head, playing a role in reinforcing the head. It should be emphasized that the traditional fiber winding machine cannot perform hoop winding at the head, so it is necessary to add other sheet materials at the head for reinforcement. In order to ensure that the skirt has a certain tensile strength, some axial laying yarns are added during the skirt laying, such as the axial yarn 28 and axial yarn 26 in the figure. Figure 6 、 7 The skirt wrapping mold adopts a split structure, so that the skirt wrapping mold can be easily separated from the product after curing.

[0079] Example 4:

[0080] See also Figure 8 In this example, a split mold is used and a metal ring 30 is embedded in the skirt end. The metal ring 30 is firmly bonded to the composite skirt through the riveting action of the tensioned rubber-containing fiber and the circumferential groove at the metal ring's connection. Axial yarn placement and circumferential winding of the cylindrical shell are performed first. Then, a skirt wrapping mold is installed at the head. After laying a layer of axial yarn, winding begins. The greater tension of the circumferential yarn forces the cylindrical axial yarn into the space between the head and the skirt wrapping mold, filling it with circumferential yarn.

[0081] The above description is merely a typical embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The number and thickness of the fiber layers illustrated do not represent the actual number and thickness. The data listed are merely illustrative of the operating principles of the present invention and do not represent required values. Any equivalent variations or substitutions that can be readily conceived by those skilled in the art of fiber winding and placement within the technical scope of this invention are intended to be encompassed by the claims of this invention.

Claims

1. A winding method for an integrated composite combustion chamber shell with a skirt, characterized in that: The integrated composite combustion chamber shell containing a skirt comprises an insulating layer (01), a skirt wrapping die (03), a head (05) and a winding layer; the insulating layer (01) is arranged on the outer surface of the core die, and the head (05) is arranged at the front and rear ends of the core die; the skirt wrapping die (03) is arranged on the outside of the front head or the rear head; the winding layer is arranged on the outside of the insulating layer (01), and the winding layer comprises a plurality of longitudinal silk layers and surrounding silk layers that are alternately distributed; The method comprises the following steps: i. The laying head of the tubular laying machine lays a longitudinal layer of wire (06) around the mandrel to the right. After the laying head passes the equator of the head, the shrinking ring of the laying machine moves inward to compress the tubular wire bundle and press it against the mandrel. Then, the mandrel rotates half a circle, the shrinking ring moves outward to release the tubular wire bundle. The laying head lays a longitudinal layer of wire (07) to the left. After the laying head passes the equator of the head, the shrinking ring of the laying machine moves inward to compress the tubular wire bundle and press it against the mandrel. Then, the mandrel rotates half a circle, the shrinking ring moves outward to release the tubular wire bundle. ⅱ. The right surround of the tubular laying machine is wound around the silk layer (08) from the equator to the left to the equator of the left end cap; ⅲ. Paste reinforcement material (19) on the outside of the longitudinal wire layer (07) of the right and left head seals; the wire laying head lays the longitudinal wire layer (09) to the right around the mandrel, and after the wire laying head passes over the equator of the right head seal, the pinch ring of the wire laying machine moves inward to compress the tubular wire bundle and press it against the mandrel, then the mandrel rotates half a circle, the pinch ring moves outward to release the tubular wire bundle, and the wire laying head lays the longitudinal wire layer (10) to the left, and after the wire laying head passes over the equator of the head seal, the pinch ring of the wire laying machine moves inward to compress the tubular wire bundle and press it against the mandrel, then the mandrel rotates half a circle, the pinch ring moves outward to release the tubular wire bundle; ⅳ. Repeat steps ⅰ to ⅲ according to the design to make the winding thickness meet the requirements; ⅴ Install the skirt mold (03) on the right side of the core mold shaft, and the left end of the skirt mold (03) close to the head; ⅵ. The wire laying head is placed around the core mold to the right longitudinal wire layer (11) until the right end of the skirt mold (03); ⅶ. The left surround of the wire laying machine is wound around the wire layer (12) from the left equator to the right to the right end of the skirt mold baffle; ⅷ. The wire laying head moves the longitudinal wire layer (13) to the left to the equator of the right end cap; ⅸ. The right side of the wire laying machine is wound around the left end of the skirt mold from the right to the right and wraps around the wire layer (12) to the equator of the right end cap; ⅹⅰ. Repeat ⅵ~ⅸ; ⅹⅱ the last longitudinal silk layer (17) self-wrapped skirt mold (03) the left end is wound to the right to the left end and twisted (180) ° to stop; then the right side of the self-wrapped skirt mold right end baffle is wound around the silk layer (21) to the left end of the equator, and finally cut all the yarns on the root of the left end head; ⅹⅲ. After being heated and cured in a curing oven, the skirt-wrapped mold (03) and the core mold are removed, and finally the skirt is machined to obtain an integrated composite combustion chamber with a skirt.

2. The winding method of an integrated composite combustion chamber shell with a skirt according to claim 1, characterized in that: When the inner diameter of the contact point between the winding layer and the head is less than or equal to the maximum outer diameter of the metal parts embedded in the head, the wire laying head lays the wire to the left after the skirt winding mold is installed, and then the right side surrounding head surrounds it to the left. When it reaches the equator, the wire laying on the approximately cylindrical surface shrinks toward the axial direction under the action of the annular yarn and sticks tightly to the wind throw and the skirt winding mold. The surrounding head is controlled to wind back and forth left and right in this range to fill the space. After the annular yarn reaches the equator, it is wrapped around the groove part and then filled upward. Axial wire laying is added during the skirt laying.

3. The winding method of an integrated composite combustion chamber shell with a skirt according to claim 1, characterized in that: The skirt wrapping mold is fixed on the shaft of the core mold, and the outer circle of the skirt wrapping mold (03) is coaxial with the core mold.

4. The winding method of an integrated composite combustion chamber shell with a skirt according to claim 1, characterized in that: The skirt wrapping mold (03) is a taper integral mold or a decomposable splicing mold.

5. The winding method of an integrated composite combustion chamber shell with a skirt according to claim 1, characterized in that: The top of the skirt wrapping mold (03) is in a fitted and wrapped layer shape or a rounded corner shape.

6. The winding method of an integrated composite combustion chamber shell with a skirt according to claim 1, characterized in that: The inner diameter of the contact point between the winding layer and the head is less than or equal to the maximum outer diameter of the metal parts embedded in the head.

7. The winding method of an integrated composite combustion chamber shell with a skirt according to claim 1, characterized in that: The end of the winding layer is embedded in the metal ring (30), and the metal ring (30) is fixed by the adhesive riveting action between the rubber-containing fiber with tension and the annular groove at the connection of the metal ring.

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