Lightweight carbon fiber workpiece and cabin thereof

Abstract

The utility model relates to the field of carbon fiber cabin manufacturing, in particular to a light-weight carbon fiber workpiece and a cabin thereof, which comprise a carbon fiber main body and a connecting piece, the connecting piece comprises a connecting rod and a connecting plate, the connecting plate is embedded in the carbon fiber main body, one end of the connecting rod is connected to the connecting plate, the other end of the connecting rod protrudes out of the carbon fiber main body, and the connecting rod is a threaded rod. The utility model aims to improve the subsequent connection strength of the carbon fiber piece and the metal workpiece in the preparation process of the light-weight carbon fiber cabin.

Description

Technical Field

[0001] The utility model relates to the field of carbon fiber cabin body preparation, in particular to a lightweight carbon fiber workpiece and its cabin body. Background Art

[0002] Due to the need for energy conservation and emission reduction, product lightweighting has become the trend and mainstream of the development of the manufacturing industry. The common use of carbon fiber reinforced composite materials, foam core materials, and metal materials is the most effective way to achieve lightweighting, which inevitably requires connecting non-metallic workpieces such as carbon fiber composite materials with metal workpieces. Currently, carbon fiber materials and metal materials are usually directly connected through adhesives. Since the adhesive strength has a large dispersion and is greatly affected by the temperature and humidity environment, the connection effect is not firm enough. Therefore, it is necessary to develop a connection workpiece that makes the connection between carbon fiber materials and metal materials closer. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a lightweight carbon fiber workpiece and its cabin body, aiming to improve the connection strength between the carbon fiber workpiece and the metal workpiece during the preparation of the lightweight carbon fiber cabin body.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A lightweight carbon fiber workpiece includes a carbon fiber main body and also includes a connecting piece. The connecting piece includes a connecting rod and a connecting plate. The connecting plate is embedded in the carbon fiber main body. One end of the connecting rod is connected to the connecting plate, and the other end protrudes from the carbon fiber main body. The connecting rod is set as a threaded rod.

[0006] The beneficial effect is that by setting the connecting piece, the connecting plate of the connecting piece is buried and fixed inside the carbon fiber main body, and then the threaded connection with the metal workpiece is carried out through the connecting rod later, realizing the stable connection between the metal workpiece and the carbon fiber main body, making the subsequent prepared carbon fiber cabin body more stable and firm.

[0007] A further technical solution of the utility model is that the carbon fiber main body includes a prepreg layer and an adhesive layer. The prepreg layer and the adhesive layer are interlaced and stacked layer by layer to jointly form the carbon fiber main body.

[0008] A further technical solution of the utility model is that a connecting protrusion is fixedly connected to the side of the connecting plate away from the connecting rod, and the connecting protrusion is embedded in the carbon fiber main body.

[0009] A further technical solution of the utility model is that the connecting protrusion includes a vertical portion and a horizontal portion. The vertical portion is vertically fixed on the connecting plate, and the horizontal portion is fixedly connected to the vertical portion and is perpendicular to the vertical portion.

[0010] The beneficial effects are as follows: Due to the arrangement of the vertical part and the horizontal part, when the prepreg is threaded onto the vertical part of the connecting plate and cooperates with the horizontal part, after heat curing, the carbon fiber flange is less likely to separate from the connecting piece under the restraint of the horizontal part.

[0011] A further technical solution of the present utility model is that the number of the connecting protrusions is set to be multiple, and the multiple connecting protrusions are evenly distributed on the connecting plate.

[0012] A further technical solution of the present utility model is that a connecting hole is formed in the connecting plate, and a prepreg layer and / or an adhesive layer are filled in the connecting hole.

[0013] The beneficial effects are as follows: By providing the connecting hole, the glue on the prepregs on both sides of the connecting plate can be fused through the connecting hole and solidified into an integral structure during subsequent heating, which makes the carbon fiber flange composed of the prepregs more tightly connected to the connecting piece, and further makes the connecting piece more tightly connect the carbon fiber flange and the metal flange.

[0014] A further technical solution of the present utility model is that the interior of the connecting rod is a hollow structure.

[0015] A further technical solution of the present utility model is that the interior of the connecting rod is a hollow structure, and the hollow structure communicates with the connecting hole.

[0016] On the other hand, the present utility model discloses the following technical solution:

[0017] A lightweight cabin body includes a lightweight carbon fiber workpiece and a metal workpiece, and the metal workpiece is connected to the lightweight carbon fiber workpiece through the connecting piece.

[0018] A further technical solution of the present utility model is that at least one mounting piece is fixedly connected to the metal workpiece, the mounting piece is provided with an internal thread, and the connecting rod is threadedly connected to the mounting piece; the carbon fiber main body correspondingly includes a plurality of connecting pieces, and each mounting piece is connected to one connecting piece.

[0019] The beneficial effects are as follows: By providing the connecting piece, with the threaded connection between the connecting rod on the connecting piece and the mounting piece, the connecting piece is firmly connected to the metal flange. Then, by burying the connecting piece in the carbon fiber flange and through the settings of the connecting hole, the horizontal part and the vertical part in the connecting protrusion on the connecting piece, the carbon fiber flange is more tightly connected to the connecting piece, and further the carbon fiber part is more tightly connected to the metal workpiece, and further the prepared lightweight carbon fiber cabin body structure is more stable and firm. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0021] Figure 2 is Figure 1 The partial enlarged view at position A in

[0022] Figure 3 is the structural schematic diagram of the connecting piece in the present utility model;

[0023] Figure 4 is a schematic diagram for showing the prepreg layer and the adhesive layer in the carbon fiber main body.

[0024] In the figure: 1 - carbon fiber main body, 11 - cabin main body, 12 - carbon fiber piece, 121 - inner ring, 122 - outer ring, 2 - mounting piece, 21 - through channel, 3 - connecting piece, 31 - connecting rod, 32 - connecting plate, 33 - connecting protrusion, 331 - vertical part, 332 - horizontal part; 4 - connecting hole; 5 - metal workpiece; 6 - mounting hole; 7 - prepreg layer; 71 - adhesive layer. Specific embodiments

[0025] The following combines the attached Figures 1 - 4 to further describe the specific embodiments of the present utility model.

[0026] As Figure 1 and Figure 2 shown, the present utility model discloses a lightweight carbon fiber workpiece and its cabin, including a carbon fiber main body 1 and a connecting piece 3. The connecting piece 3 includes a connecting rod 31 and a connecting plate 32; the connecting plate 32 is buried inside the carbon fiber main body 1. One end of the connecting rod 31 is integrally connected to the connecting plate 32, and the other end extends out of the surface of the outer ring 122. The connecting rod 31 is set as a threaded rod. In this way, the connecting piece 3 is pre-buried in the carbon fiber main body 1. When other workpieces need to be connected to the lightweight carbon fiber workpiece, threaded connection with the carbon fiber main body 1 can be achieved through the connecting rod 31.

[0027] In this embodiment, the carbon fiber main body 1 includes a cabin main body 11 and two carbon fiber pieces 12. In this application, the cabin main body 11 is set as a cylindrical structure with openings at both ends. The carbon fiber pieces 12 are set as carbon fiber flanges and are respectively connected to the openings at both ends of the cabin main body 11. Both the cabin main body 11 and the two carbon fiber pieces 12 include a prepreg layer 7 and an adhesive layer 71, and are composed of the prepreg layer 7 and the adhesive layer 71 intersecting and overlapping layer by layer. The adhesive layer 71 is used to bond the prepreg layers 7 on both sides; the carbon fiber flange includes an inner ring 121 and an outer ring 122. The inner ring 121 is integrally connected to the edge of the opening of the cabin main body 11 and corresponds to the edge of the cabin main body 11. The outer ring 122 is fixedly connected to the outer edge of the inner ring 121 and protrudes from the outer wall of the cabin main body 11. The connecting piece 3 is connected to the outer ring 122; the connecting plate 32 is buried inside the outer ring 122. One end of the connecting rod 31 is integrally connected to the connecting plate 32, and the other end extends out of the surface of the outer ring 122;

[0028] Combined with Figure 3 , in some embodiments, a connecting protrusion is fixedly connected to the side of the connecting plate 32 facing away from the connecting rod 31. The connecting protrusion 33 includes a vertical portion 331 and a horizontal portion 332. The vertical portion 331 is arranged along a direction parallel to the connecting rod 31. One end of the vertical portion 331 is welded to the connecting plate 32, and the other end is connected to the horizontal portion 332. The horizontal portion 332 is welded to the vertical portion 331 along a direction perpendicular to the vertical portion 331. Thus, when in use, other workpieces are connected to the carbon fiber main body 1 through the connecting member 3, and not only can the connecting protrusion 33 be fixedly connected through the connecting plate 32;

[0029] In this embodiment, both the connecting plate 32 and the connecting protrusion 33 are metal parts, and the connecting protrusion 33 is fixed to the connecting plate 32 by welding. It should be understood that in other embodiments, according to actual situations, the connecting protrusion 33 can also be fixed to the connecting plate 32 by other means.

[0030] In some embodiments, the number of the connecting protrusions 33 is set to be multiple, and the horizontal portions 332 of the multiple connecting protrusions 33 are arranged opposite to each other in pairs; in this embodiment, the multiple connecting protrusions 33 are evenly distributed on the connecting plate 32;

[0031] Reference Figure 1 and Figure 3 , a plurality of connecting holes 4 are formed in the connecting plate 32. In this application, the number of the connecting holes 4 is set to be two, and the two connecting holes 4 are spaced apart on the connecting plate 32; the setting of the connecting holes 4, combined with Figure 4 , when the connecting plate 32 is penetrated through the prepreg layer 7 and the adhesive layer 71, the adhesive layers 71 communicate with each other through the connecting holes 4, so that the prepreg layers 7 on both sides of the connecting plate 32 are integrally bonded, realizing a more stable bonding effect on the connecting plate 32, and making the connecting plate 32 more firmly fixed within the outer ring 122; the inside of the connecting rod 31 is provided with a hollow structure, which makes the overall weight of the connecting member 3 lighter, which makes the weight of the prepared carbon fiber cabin lighter, realizing the lightweight of the cabin 1; the hollow structure inside the connecting rod 31 is communicated with the connecting holes 4, which enables the adhesive layer 7 to be adhesively bonded to the inside of the connecting rod 31, improving the connection firmness of the connecting rod 31 within the carbon fiber flange.

[0032] Embodiment 2;

[0033] The present embodiment discloses a lightweight cabin, comprising the lightweight carbon fiber workpiece and the metal workpiece 5 of embodiment 1. In the present application, the metal workpiece 5 is configured as a metal flange, and a mounting hole 6 is provided on the metal flange. The mounting hole 6 is configured as a threaded hole. The mounting hole 6 is threadedly connected to a mounting member 2, and the mounting member 2 is configured as a long threaded rod. A through-channel 21 is provided inside the mounting member 2 along its length direction, and a thread is provided inside the through-channel 21. A connecting rod 31 is threaded outside, and the connecting rod 31 is provided inside the through-channel 21 and is threadedly connected to the mounting member 2, so that the metal flange is fixedly connected to the outer ring 122, thereby realizing a stable connection between the metal workpiece 5 and the carbon fiber body 1; the number of mounting holes 6 on the metal workpiece 5 is configured as a plurality and evenly distributed on the metal workpiece 5, the number of mounting members 2 is configured as a plurality and evenly distributed on the metal workpiece 5, and the connecting member 3 is configured as a plurality and the number corresponds to the mounting member 2.

Claims

1. A lightweight carbon fiber workpiece, characterized in that, It includes a carbon fiber main body and also includes a connecting member. The connecting member includes a connecting rod and a connecting plate. The connecting plate is embedded in the carbon fiber main body. One end of the connecting rod is connected to the connecting plate, and the other end protrudes from the carbon fiber main body. The connecting rod is provided as a threaded rod.

2. The lightweight carbon fiber workpiece according to claim 1, wherein The carbon fiber main body includes a prepreg layer and an adhesive layer. The prepreg layer and the adhesive layer are staggered with each other and stacked layer by layer to jointly form the carbon fiber main body.

3. The lightweight carbon fiber workpiece according to claim 1, wherein, A connecting protrusion is fixedly connected to a side of the connecting plate away from the connecting rod, and the connecting protrusion is embedded in the carbon fiber main body.

4. The lightweight carbon fiber workpiece according to claim 3, characterized in that, The connecting protrusion includes a vertical portion and a horizontal portion. The vertical portion is perpendicularly fixed on the connecting plate, and the horizontal portion is fixedly connected to the vertical portion and perpendicular to the vertical portion.

5. The lightweight carbon fiber workpiece according to claim 4, characterized in that, The number of the connecting protrusions is set to be multiple.

6. The lightweight carbon fiber workpiece according to claim 2, wherein A connecting hole is formed in the connecting plate, and the connecting hole is filled with a prepreg layer and / or an adhesive layer.

7. The lightweight carbon fiber workpiece according to claim 2, characterized in that, The inside of the connecting rod is a hollow structure.

8. The lightweight carbon fiber workpiece according to claim 6, characterized in that, The inside of the connecting rod is a hollow structure, and the hollow structure communicates with the connecting hole.

9. A lightweight cabin, characterized in that, It includes the lightweight carbon fiber workpiece and the metal workpiece according to any one of claims 1-8, and the metal workpiece is connected to the lightweight carbon fiber workpiece through the connecting member.

10. The lightweight cabin according to claim 9, characterized in that, At least one mounting member is fixedly connected to the metal workpiece. The mounting member is provided with an internal thread, and the connecting rod is threadedly connected to the mounting member; the carbon fiber main body correspondingly includes a plurality of connecting members, and each mounting member is connected to one connecting member.

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