Lightweight carbon fiber transmission shaft using aluminum alloy connecting fork

Abstract

The utility model relates to a light-weight carbon fiber transmission shaft using an aluminum alloy connecting fork. Comprising a connecting fork, a sliding fork, a welding fork, a universal joint, a shaft tube and an oil injection nozzle, the shaft tube is arranged between the pair of welding forks, the welding fork at one end is connected with the sliding fork through the universal joint, the sliding fork is provided with an oil injection nozzle, and the welding fork at the other end is connected with the connecting fork through the universal joint; the shaft tube is made of a carbon fiber material, the welding fork is made of an aluminum alloy material, a vertical groove is formed in the joint of the welding fork and the shaft tube, and the welding fork and the shaft tube are fixedly bonded through an adhesive. The transmission shaft is reasonable in structure, the shaft tube is made of the carbon fiber material, the welding fork is made of the aluminum alloy material, the NVH performance of the transmission shaft is effectively improved, and the assembly weight is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle transmission, in particular to a lightweight carbon fiber transmission shaft using an aluminum alloy joint fork. Background Art

[0002] Automobile lightweighting is an important breakthrough angle in the development of automobiles today. Since carbon fiber materials have higher specific strength and specific stiffness than metals, are highly designable, and can achieve integrated design of structure and function, enabling them to have functions such as shock absorption, heat insulation, noise reduction, and resistance to impact damage. Replacing metal materials with this material to manufacture automobile parts will effectively reduce the structural weight of the automobile, reduce energy consumption, and improve the safety of the automobile. The transmission shaft is an important component for transmitting power in the automobile transmission system. Its function is to transmit the power of the engine to the wheels together with the gearbox and the drive axle, so that the automobile generates driving force. The quality of the transmission shaft directly affects the comprehensive performance of the automobile. Content of the Utility Model

[0003] (I) Technical Problems to be Solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a lightweight carbon fiber transmission shaft using an aluminum alloy joint fork. The structure of this transmission shaft is reasonable. The shaft tube is made of carbon fiber material, and the welding fork is made of aluminum alloy material, effectively improving the NVH performance of the transmission shaft and reducing the total weight.

[0005] (II) Technical Solutions

[0006] In order to achieve the above object, the main technical solutions adopted by the utility model include:

[0007] The utility model relates to a carbon fiber transmission shaft using an aluminum alloy joint fork, including a connection fork, a sliding fork, a welding fork, a universal joint, a shaft tube, and an oil injection nozzle; the shaft tube is arranged between a pair of welding forks. One of the welding forks at one end is connected to the sliding fork through a universal joint, and the sliding fork is provided with an oil injection nozzle. The welding fork at the other end is connected to the connection fork through a universal joint; the shaft tube is made of carbon fiber material, and the welding fork is made of aluminum alloy material. The structure of this transmission shaft is reasonable. The shaft tube is made of carbon fiber material, and the welding fork is made of aluminum alloy material, effectively improving the NVH performance of the transmission shaft and reducing the total weight.

[0008] The carbon fiber transmission shaft with an aluminum alloy joint fork proposed by the utility model uses the form of a carbon fiber shaft tube plus an aluminum alloy joint fork, which not only ensures the strength requirements of the transmission shaft but also reduces the overall weight of the transmission shaft and improves the NVH performance of the transmission shaft.

[0009] Further, the welding fork is made of aluminum alloy. One end of the welding fork has two ear holes for connecting to the universal joint, and the other end is provided with a vertical groove. At the vertical groove, an adhesive is used to fixedly bond the welding fork to the shaft tube. The vertical groove is mainly provided to increase the adhesiveness between the carbon fiber shaft tube and the welding fork, and improve the firmness of the combination of the two.

[0010] Further, the shaft tube is made of carbon fiber material, aiming to reduce the total weight of the product while ensuring the strength of the shaft tube and improving the NVH performance.

[0011] Further, a spline groove is provided inside the sliding fork, and an oil injection nozzle is installed outside.

[0012] Further, the connecting fork is connected and fixed to the welding fork through a universal joint. There is a spline groove inside the connecting fork and a pin hole is provided in the connecting fork for connecting and fixing the transmission components on the vehicle.

[0013] (III) Beneficial effects

[0014] The beneficial effects of the present utility model are as follows: Compared with the prior art, a lightweight carbon fiber transmission shaft using an aluminum alloy joint fork provided by the present utility model has a reasonable structure. The shaft tube is formed by carbon fiber winding and bonded to the aluminum alloy welding fork, which not only ensures the rigidity of the transmission shaft but also reduces the overall weight of the transmission shaft, effectively improving the torsional strength and NVH performance of the transmission shaft, and has good popularization value. Description of the drawings

[0015] Figure 1 is a schematic structural diagram of the lightweight carbon fiber transmission shaft with an aluminum alloy joint fork provided by the present utility model;

[0016] Figure 2 is a schematic structural diagram of the aluminum alloy joint fork of the lightweight carbon fiber transmission shaft with an aluminum alloy joint fork provided by the present utility model;

[0017]

Description of the reference numerals

[0018] 1: Oil injection nozzle; 2: Sliding fork; 3: Universal joint; 4: Welding fork; 4-1: Two ear holes; 4-2: Vertical groove; 5: Shaft tube; 6: Connecting fork. Detailed implementation manners

[0019] In order to better understand the above technical solutions, the exemplary embodiments of the present utility model will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present utility model and to be able to fully convey the scope of the present utility model to those skilled in the art.

[0020] AsFigure 1 and 2 As shown, the utility model relates to a lightweight carbon fiber transmission shaft using an aluminum alloy joint fork. It includes a connecting fork 6, a sliding fork 2, a welding fork 4, a universal joint 3, a shaft tube 5, and an oil injection nozzle 1. The shaft tube 5 is arranged between a pair of welding forks 4. One end of the welding fork 4 is connected to the sliding fork 2 through the universal joint 3, and an oil injection nozzle 1 is provided on the sliding fork 2. The other end of the welding fork 4 is connected to the connecting fork 6 through the universal joint 3. The shaft tube 5 is made of carbon fiber material, the welding fork 4 is made of aluminum alloy material. A vertical groove 4-2 is provided at the connection between the welding fork 4 and the shaft tube 5, and the shaft tube 5 is fixedly bonded with an adhesive. The structure of this transmission shaft is reasonable. The shaft tube 5 is made of carbon fiber material, and the welding fork 4 is made of aluminum alloy material, effectively improving the NVH performance of the transmission shaft and reducing the total weight of the assembly.

[0021] The carbon fiber transmission shaft with an aluminum alloy joint fork proposed in this embodiment uses the form of a carbon fiber shaft tube 5 plus an aluminum alloy welding fork 4, which not only ensures the strength requirements of the transmission shaft but also reduces the overall weight of the transmission shaft and improves the NVH performance of the transmission shaft.

[0022] The welding fork 4 is made of aluminum alloy. One end of it has two ear holes 4-1 for connecting the universal joint 3, and the other end is provided with a vertical groove 4-2. The setting of the vertical groove 4-2 is mainly to increase the adhesion between the carbon fiber shaft tube 5 and the welding fork 4 and improve the firmness of the combination of the two.

[0023] The shaft tube 5 is made of carbon fiber material, and its purpose is to reduce the total weight of the product while ensuring the strength of the shaft tube 5 and improve the NVH performance.

[0024] The sliding fork 2 is internally provided with a spline groove, and an oil injection nozzle 1 is installed outside.

[0025] The connecting fork 6 is connected and fixed to the welding fork 4 through the universal joint 3. There is a spline groove inside the connecting fork 6, and a pin hole is provided on the connecting fork 6 for connecting and fixing the transmission components on the vehicle.

[0026] After a pair of welding forks 4 are bonded to the shaft tube 5, the two ear holes 4-1 of the welding fork 4 are connected to the universal joint 3. In this way, a pair of universal joints 3 are connected to the two ear holes 4-1 of the welding forks at both ends of the shaft tube 5. Then, one end of the sliding fork 2 is connected to the welding fork 4 through the universal joint 3, and the other end of the connecting fork 6 is connected to the welding fork 4 through the universal joint 3, forming a carbon fiber transmission shaft to connect the transmission or the drive axle.

[0027] Compared with the prior art, the lightweight carbon fiber transmission shaft with an aluminum alloy joint fork provided by the utility model has a reasonable structure. The shaft tube is formed by carbon fiber winding and is bonded to the aluminum alloy welding fork, which not only ensures the rigidity of the transmission shaft but also reduces the overall weight of the transmission shaft, effectively improving the torsional strength and NVH performance of the transmission shaft, and has good promotion value.

[0028] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium; it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly defined and limited, when the first feature is "on" or "under" the second feature, it may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, when the first feature is "above", "over" and "on top of" the second feature, it may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. When the first feature is "under", "beneath" and "underneath" the second feature, it may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0030] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A lightweight carbon fiber transmission shaft using an aluminum alloy fork, characterized in that: It comprises a connecting fork (6), a sliding fork (2), a welding fork (4), a universal joint (3), an axle tube (5) and an oiling nozzle (1); Both ends of the shaft tube (5) are connected to welding forks (4), wherein the welding fork (4) at one end is connected to the sliding fork (2) via a universal joint (3), an oiling nozzle (1) is left on the sliding fork (2), and the welding fork (4) at the other end is connected to the connecting fork (6) via a universal joint (3); the shaft tube (5) is made of carbon fiber material, and the welding fork (4) is made of aluminum alloy material.

2. A lightweight carbon fiber transmission shaft using an aluminum alloy fork as claimed in claim 1, characterized in that: One end of the welding fork (4) is provided with two ear holes (4-1), and the two ear holes (4-1) are connected to the universal joint (3); the other end of the welding fork (4) is provided with a vertical groove (4-2), and the vertical groove (4-2) is connected to the shaft tube.

3. A lightweight carbon fiber transmission shaft using an aluminum alloy fork as claimed in claim 2, characterized in that: The vertical groove (4-2) of the welding fork (4) and the shaft tube (5) are bonded and fixed by an adhesive.

4. A lightweight carbon fiber transmission shaft using an aluminum alloy fork as claimed in claim 1, characterized in that: The sliding fork (2) has a spline groove inside, and an oiling nozzle (1) is installed outside the sliding fork (2) for injecting oil into the spline of the sliding fork (2) to facilitate the axial sliding of the transmission shaft during use.

5. A lightweight carbon fiber transmission shaft using an aluminum alloy fork as claimed in claim 1, characterized in that: The connecting fork (6) has a spline groove inside, and the connecting fork (6) has a pin hole for connecting and fixing a transmission component on the automobile.

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