CN201385547Y - A carbon fiber wheel rim for a vehicle - Google Patents

Abstract

The utility model relates to a carbon fiber wheel rim of a vehicle, which is characterized in that a small round frame and a big round frame which are concentric with the wheel rim are integrally formed by carbon fibers, and two sides of the small round frame and the big round frame are connected with symmetrical arc-shaped frames; the large round frame is provided with a tire groove for mounting a vehicle tire on the outer surface, the inner surface and the outer surface of the small round frame are in symmetrical arc shapes, the position with the maximum thickness is formed at the central part, the thickness of the position is not less than the total thickness of the two frames, the thickness of the inner surface and the thickness of the outer surface are gradually reduced to connect the frames, so that the small round frame can stably bear the driving force for a long time, the inconvenience of repeated arrangement of the traditional outer ring and the traditional inner ring is eliminated, the manufacturing steps are effectively reduced, the weight of a finished product is reduced, and the effects of light weight and firmness are achieved.

Description

A carbon fiber wheel rim for a vehicle

technical field

The utility model refers to a carbon fiber rim which can be used for vehicle tires.

Background technique

Figures 1 and 2 reveal a conventional carbon fiber composite bicycle rim structure, the rim 10 is an inner hollow ring, which concentrically has a small round frame 11, a larger diameter large round frame 12, and symmetrical connections Arc-shaped frames 13, 14 on both sides of the small and large circular frames 11, 12;

The small round frame 11 has an arc-shaped outer surface 110 and a straight or less curved inner surface 111. The inner surface 111 is also provided with a plurality of radial holes 15 that run through the two surfaces 110, 111. The radial holes 15 is for the installation of the radial wire 21, and the joint of the radial wire 21 can be positioned on the straight inner surface 111; as for the large round frame 12, a tire groove 121 is formed on the outer surface 120, and the tire groove 121 is used for the tire 22 of the vehicle to be installed , in order to form a large round frame 12 with a large difference in shape, it must be designed to wrap an outer ring 16 made of foam material inside the large round frame 12. Specifically, it uses the absorbent epoxy resin impregnated with the fiber layer as the fiber Material, then add one or more layers of material according to the shape of the outer ring 16, and form the large round frame 12 through the outer mold with high pressure and high temperature. In other words, the outer ring 16 is used as an inner mold , but this inner mold is to be connected in the big round frame 12 after molding.

As for the small round frame 11 integrally formed with fiber materials, there is no such inner mold configuration, so the thickness difference between the small round frame 11 and the two frames 13, 14 is not large, resulting in the small round frame 11 being small when it bears the driving force. The round frame 11 is not enough to withstand the stress transmitted by the two frames 13, 14, and the spokes 21 at the same time. Under long-term operation, the small round frame 11 is easily deformed; The two points A and B of the two frames 13 and 14, due to excessive shape changes, are prone to fracture problems due to stress concentration; in summary, the small round frame 11 is easily deformed and broken, resulting in the use of the rim 10. Short lifespan and safety concerns.

In view of the poor design of the small round frame 11, the structure of Fig. 3 and 4 is produced, and an inner ring 17 is mainly connected to the inner surface 111 of the small round frame 11, and the inner ring 17 can adopt the structure shown in Fig. 3 Foam material, perhaps adopt the metal material shown in Fig. 4 to make, thereby inner ring 17 is set and is used as the inner mold of molding small round frame 11, makes small round frame 11 inner, outer surface 110,111 can be molded in central part The thickness is the largest, and the inner and outer surfaces 110, 111 of the small round frame 11 can be arranged in a symmetrical arc, and the thickness of the inner and outer surfaces 110, 111 is tapered to connect to the frame 13, 14, With this design, the shape of the small round frame 11 can be greatly changed to increase its structure. Specifically, the inner ring 17 is the inner mold for forming the small round frame 11, but the inner mold is connected after molding. In the small round frame 11, the shortcoming of Fig. 2 can be improved like this; moreover, its outer ring 16 can adopt the foam material shown in Fig. 3 to make, also can adopt the metal material shown in Fig. 4 to make, its end view Depends on demand.

According to the structure of Figures 3 and 4 above, the outer ring 16 and the inner ring 17 are mainly used as inner molds, so that the carbon fiber material can follow the shape of the small round frame 11 and the large round frame 12 with a large change in cross-sectional shape to achieve structural reinforcement. However, the manufacturing method of this structure must go through many complicated processes such as preparing the outer ring 16→preparing the inner ring 17→forming the rim 10. Jointly installed in the rim 10, and each rim 10 must be provided with a set of outer ring 16, inner ring 17, resulting in the completion of the work efficiency of the rim 10 can not be improved, more difficult to mention the growth of economic benefits, while being affected The outer ring 16 and the inner ring 17 have a certain weight influence, and cannot achieve the goal of weight reduction more effectively, which is where the current processing technology cannot break through.

In view of the time-consuming and labor-intensive manufacturing of these carbon fiber rims, resulting in high costs, inability to improve efficiency, and the shortcomings of inability to effectively achieve lightweight, based on years of professional experience and experience, through continuous conception, innovation and research, and then developed The utility model.

Utility model content

The purpose of the utility model is to provide a carbon fiber wheel rim of a vehicle. The small round frame and the big round frame concentric with the rim are integrally formed with carbon fiber, which shortens the manufacturing time, improves the production efficiency, and makes the wheel rim lighter and stronger.

For reaching above-mentioned purpose, the utility model adopts following scheme:

A carbon fiber wheel rim for a vehicle, which is mainly made of carbon fiber to integrally form a concentric small round frame and a large round frame, and arc-shaped frames are symmetrically connected to both sides of the small and large round frames, so that the wheel rim forms an internal Hollow ring; the small round frame has a symmetrically curved outer surface and inner surface, and the inner and outer surfaces form a thickest point in the central part, and the thickness of this place is not less than the total thickness of the two frames, the inner 1. The thickness of the outer surface is a connecting frame tapered; the outer surface of the large circular frame is formed with tire grooves with openings gradually expanding outwards for installation of vehicle tires.

The small circular frame ring is provided with a plurality of radial holes penetrating the inner and outer surfaces, and the radial holes are used for installation of the radial threads, and the joints of the radial threads are positioned on the inner surface of the small circular frame.

The big round frame is provided with through holes, and the through holes are used for the joints of the spokes to pass through, so that the joints are installed on the inner surface of the small round frame.

After adopting the above-mentioned scheme, the utility model mainly uses carbon fiber to integrally form a small round frame and a large round frame concentric with the rim, and the inner and outer surfaces of the small round frame form a connection frame with the largest thickness and tapered in the central part. The small round frame is stable enough to withstand the driving force for a long time; this special molding method eliminates the repeated setting of the traditional outer ring and inner ring, greatly saves man-hours and improves production efficiency, effectively improves the quality, and makes the product both Better lightweight and robust features.

The utility model is described in detail below with preferred embodiments and accompanying drawings.

Description of drawings

Fig. 1 is the appearance schematic diagram of conventional wheel frame;

Fig. 2 is a schematic cross-sectional view of a conventional wheel frame;

Fig. 3 is a schematic cross-sectional view of a second conventional wheel frame;

Fig. 4 is a schematic cross-sectional view of a third conventional wheel frame;

Fig. 5 is a schematic cross-sectional view of the wheel frame of the present invention;

Fig. 6 is a schematic diagram of implementation of the wheel frame of the present invention.

Description of main component symbols

Common part:

10 rim 11 small round frame 110 outer surface

111 inner surface 12 large round frame 120 outer surface

121 tire groove 13, 14 frame 15 spoke holes

16 Outer ring 17 Inner ring A, B positions

21 spokes 211 joints 22 tires

The utility model part:

30 rim 31 small round frame 310 outer surface

311 inner surface 32 large round frame 320 outer surface

321 tire groove 322 through hole

33, 34 frame 35 spoke holes

Detailed ways

Please refer to Fig. 5 and 6, the utility model is a carbon fiber rim of a vehicle, the rim 30 is formed into a concentric small round frame 31 and a large round frame 32 with carbon fiber, and on the sides of the small and large round frames 31 and 32 Symmetrically connected with arc-shaped frames 33, 34, so that the rim 30 forms an inner hollow ring;

The small round frame 31 has an arc-shaped outer surface 310 and an inner surface 311 symmetrically without using the inner ring as an inner mold, so that the inner and outer surfaces 311, 310 form the thickest part at the central part, and make the The thickness at the place is not less than the total thickness of the sum of the two frames 33, 34, and the thickness of the inner and outer surfaces 311, 310 is tapered to connect the frame 33, 34, so that the cross-sectional area of the small round frame 31 can be increased, Make the stress distribution at the connection between the inner surface 311 of the small round frame 31 and the frames 33, 34 more uniform, so that the small round frame 31 is sufficient to bear the stress transmitted by the two frames 33, 34 and the spokes 21; the small round frame 31. The other ring is provided with a plurality of radial holes 35 penetrating through the two surfaces 310, 311. The radial holes 35 are used for installation of the spokes 21, and enable the joints 211 of the spokes 21 to be positioned on the inner surface 311;

The large round frame 32 does not have an outer ring as an inner mold, and a tire groove 321 with an opening gradually expanding outward is formed on the outer surface 320, and the tire groove 321 is provided for the tire of the vehicle to be installed; in addition, the large round frame 32 runs through A through hole 322 is provided for the joint 211 of the spoke 21 to pass through, so that the joint 211 can be installed on the inner surface 311 of the small round frame 31 .

To sum up, the utility model adopts this special forming method, so there is no need to adopt the repeated arrangement of the traditional outer ring and inner ring, which is naturally more convenient and faster than the conventional manual operation, and can indeed exert economic benefits. Improve production efficiency, so it is progressive in line with economic benefits. There is no publication of similar creations in similar products, so the application is filed in accordance with the law. But the above is only a preferred embodiment of the utility model, and the scope of implementation of the utility model cannot be limited, that is, all equal changes and modifications made according to the patent scope of the utility model should still belong to the utility model. Within the scope covered by the utility model.

Claims (3)

1, a kind of carbon fibre rim of vehicle is characterized in that: this wheel rim is to go out concentric roundlet frame, great circle frame so that carbon fiber is one-body molded, and, great circle frame two side symmetries little in this be connected with the arcuation frame, make this wheel rim form the ring body of an inner hollow;

The outside face with arc and the inside face of this roundlet frame symmetry, and inside and outside surface forms the thickness maximum in central part, and this place's thickness is not less than the gross thickness of two frame additions, and the thickness on this inside and outside surface is the connection frame of convergent;

This great circle frame is formed with the opening tire groove of a tire of buying car in installments the installing of flaring outwardly in outside face.

2, the carbon fibre rim of a kind of vehicle as claimed in claim 1 is characterized in that: this roundlet frame is equipped with a plurality of spoke silk holes of running through inside and outside surface, and install for spoke silk in this spoke silk hole, and the joint location that makes the spoke silk is in roundlet frame inside face.

3, the carbon fibre rim of a kind of vehicle as claimed in claim 2 is characterized in that: this great circle frame has provided open-work, and this open-work passes through for the joint of spoke silk, makes joint be installed on the inside face of roundlet frame.

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