Large-length composite material rotary body structure

Abstract

The utility model discloses a large-length composite material rotary body structure which comprises a plurality of sections of reinforcing cylinders, the reinforcing cylinders are connected end to end to form an inner container, a front positioning face and a rear positioning face are arranged on the two sides of each reinforcing cylinder respectively, a front inserting hole is formed in the outer side of each front positioning face, and a rear bearing hole is formed in each rear positioning face. A positioning convex ring is arranged on the outer side of the front positioning face and around the front inserting hole, and a skin is laid on the outer side of the inner container. According to the utility model, the design that multiple sections of reinforcing cylinders are respectively formed is adopted, so that the length of the required tool is reduced, the problem of large deformation caused by the self weight of a metal tool is avoided, and the forming quality is improved. The multiple sections of reinforcing cylinders are self-positioned through the front positioning face and the rear positioning face which have the accurate positioning relation, use of a high-precision assembly fixture is avoided, and the forming cost is reduced. In addition, due to the fact that the formed reinforcing cylinder does not need to be demolded through a large-length tool, the operation process is simplified, the operation difficulty is lowered, and the production efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to a large-length composite material rotary body structure. Background Art

[0002] As a typical composite product structure, long composite rotating structures have great application potential in industries such as aerospace, marine, and transportation. However, the molding of existing long composite rotating structures requires the use of long metal tooling. These heavy metal tooling can easily deform during the molding process, affecting molding quality and increasing costs. Utility Model Content

[0003] The main purpose of the present invention is to provide a long-length composite material rotating body structure to solve the problems raised in the above background technology.

[0004] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0005] A long-length composite material rotating body structure includes multiple sections of reinforcing tubes, which are connected end to end to form an inner liner. Front and rear positioning surfaces are respectively provided on both sides of the reinforcing tubes. A front insertion hole is provided on the outer side of the front positioning surface, and a rear bearing hole is provided on the rear positioning surface. A positioning protrusion is provided around the front insertion hole on the outer side of the front positioning surface. The outer side of the inner liner is paved with a skin.

[0006] Preferably, the outer diameter of the positioning protruding ring is equal to the inner diameter of the rear bearing hole.

[0007] Preferably, a positioning concave ring is provided on the inner side of the rear positioning surface around the rear bearing hole.

[0008] Preferably, the inner diameter of the positioning concave ring is equal to the outer diameter of the positioning convex ring.

[0009] Preferably, the front positioning surfaces and rear positioning surfaces of two adjacent reinforcement tubes are connected by bonding.

[0010] Preferably, the length of the skin is the same as the length of the liner.

[0011] Preferably, the reinforcement tube is provided with two sections, and the two sections of the reinforcement tube are connected end to end.

[0012] Beneficial technical effects of the utility model:

[0013] 1. This utility model utilizes a design where multiple sections of the reinforcement tube are molded separately, reducing the length of the required tooling, avoiding significant deformation caused by the weight of the metal tooling, and improving molding quality. The multi-section reinforcement tube is self-positioned via precisely aligned front and rear locating surfaces, eliminating the need for high-precision assembly jigs and reducing molding costs. Furthermore, since the molded reinforcement tube does not require long tooling for demolding, the process is simplified, operational complexity is reduced, and production efficiency is significantly improved.

[0014] 2. The utility model forms an inner liner by bonding multiple sections of reinforcing tubes, which is then used as a male mold to lay the outer skin. This has low requirements on the timeliness of the bonding operation, can better ensure the bonding quality, and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the rotating body of an embodiment of the present utility model;

[0016] Figure 2 A cross-sectional view of a rotating body according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic structural diagram of the front side of the reinforcement tube according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the rear side structure of the reinforcement tube in an embodiment of the present utility model.

[0019] In the figure: 1. Reinforcement tube; 2. Inner liner; 3. Front positioning surface; 4. Rear positioning surface; 5. Front insertion hole; 6. Rear bearing hole; 7. Positioning convex ring; 8. Skin; 9. Positioning concave ring. DETAILED DESCRIPTION

[0020] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is described in further detail below with reference to embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0021] like Figures 1-4 As shown, the present embodiment provides a long-length composite material rotating body structure, comprising a plurality of sections of reinforcing tubes 1, which are connected end to end to form an inner liner 2, a front positioning surface 3 and a rear positioning surface 4 are respectively provided on both sides of the reinforcing tube 1, a front insertion hole 5 is provided on the outer side of the front positioning surface 3, a rear bearing hole 6 is provided on the rear positioning surface 4, a positioning protruding ring 7 is provided around the front insertion hole 5 on the outer side of the front positioning surface 3, a skin 8 is laid on the outer side of the inner liner 2, and the front positioning surfaces 3 and the rear positioning surfaces 4 of two adjacent reinforcing tubes 1 are connected by bonding.

[0022] During manufacturing, the same tooling is first used to form the reinforcement tubes 1 one by one, adhesive is applied to the front positioning surface 3 and the rear positioning surface 4 of the reinforcement tube 1, and the positioning convex ring 7 is inserted into the rear bearing hole 6 for plugging and positioning. The above operation is repeated until all the reinforcement tubes 1 are connected, and finally a complete composite material liner 2 is formed. The skin 8 is laid on the outside of the liner 2, and the skin 8 and the liner 2 are glued and cured to form an integral large-length composite material rotating body structure.

[0023] The tooling used is short in length and light in weight, which avoids the molding quality problems caused by large deformation due to the deadweight of the metal tooling. It does not require high-precision assembly tooling, reduces assembly difficulty and manufacturing costs, and improves molding efficiency.

[0024] In this embodiment, if Figure 2 As shown, the outer diameter of the positioning convex ring 7 is equal to the inner diameter of the rear bearing hole 6, so that the positioning convex ring 7 can be just inserted into the rear bearing hole 6, and the positioning effect is good.

[0025] In this embodiment, if Figure 1 As shown, a positioning concave ring 9 is provided around the rear bearing hole 6 on the inner side of the rear positioning surface 4 , which further enhances the connection stability and accuracy between adjacent reinforcement tubes 1 .

[0026] In this embodiment, if Figure 2 As shown, the inner diameter of the positioning concave ring 9 is equal to the outer diameter of the positioning convex ring 7, thereby ensuring the positioning effect.

[0027] In this embodiment, if Figure 2 As shown, the length of the skin 8 is the same as that of the inner liner 2 , and the skin 8 can completely cover the side of the inner liner 2 .

[0028] In this embodiment, if Figure 2 As shown, the reinforcing tube 1 is provided with two sections, and the two sections of the reinforcing tube 1 are connected end to end. The reinforcing tube 1 can be provided with different lengths and different numbers of sections according to the needs, which makes production more convenient.

[0029] In summary, in this embodiment, the design of separately molding multiple sections of reinforcing tubes 1 is adopted, which reduces the length of the required tooling, avoids the problem of large deformation caused by the weight of the metal tooling itself, and improves the molding quality. The multiple sections of reinforcing tubes 1 are self-positioned by the front positioning surface 3 and the rear positioning surface 4 with a precise positioning relationship, avoiding the use of high-precision assembly jigs and reducing molding costs. In addition, since the reinforcing tube 1 after molding does not require the use of long-length tooling for demolding, the operation process is simplified, the difficulty of operation is reduced, and the production efficiency is significantly improved. By gluing multiple sections of reinforcing tubes 1 to form the inner liner 2, and then using it as a positive mold to lay the outer skin 8, the timeliness requirements for the bonding operation are low, the bonding quality can be better guaranteed, and the product quality can be improved.

[0030] The above is only a further embodiment 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 within the scope disclosed by the present invention based on the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A long composite material rotating structure, characterized by: The invention comprises a plurality of sections of reinforcing tubes (1), wherein the plurality of sections of reinforcing tubes (1) are connected end to end to form an inner liner (2), a front positioning surface (3) and a rear positioning surface (4) are respectively provided on both sides of the reinforcing tube (1), a front insertion hole (5) is provided on the outer side of the front positioning surface (3), a rear bearing hole (6) is provided on the rear positioning surface (4), a positioning convex ring (7) is provided on the outer side of the front positioning surface (3) around the front insertion hole (5), and a skin (8) is laid on the outer side of the inner liner (2).

2. The long-length composite material rotating structure according to claim 1, characterized in that: The outer diameter of the positioning convex ring (7) is equal to the inner diameter of the rear bearing hole (6).

3. The long-length composite material rotating structure according to claim 1, characterized in that: A positioning concave ring (9) is provided on the inner side of the rear positioning surface (4) around the rear bearing hole (6).

4. The long-length composite material rotating structure according to claim 3, characterized in that: The inner diameter of the positioning concave ring (9) is equal to the outer diameter of the positioning convex ring (7).

5. The long-length composite material rotating structure according to claim 1, characterized in that: The front positioning surfaces (3) and the rear positioning surfaces (4) of two adjacent reinforcement cylinders (1) are connected by bonding.

6. The long-length composite material rotating structure according to claim 1, characterized in that: The length of the skin (8) is the same as the length of the inner liner (2).

7. The long-length composite material rotating structure according to claim 1, characterized in that: The reinforcing tube (1) is provided with two sections, and the two sections of the reinforcing tube (1) are connected end to end.

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